Gravity feed devices take advantage of the fact that items can flow from a high position to a low one under the action of gravity. Items are placed at a high position and flow along a fixed material channel to a low position, thereby carrying out item supply operations. When items flow in the material channel, it is easy to form gates or bridges, resulting in weak flow or even blockages. Therefore, the flow channel should be smooth and flat, and the necessary anti-jam agitation device must be installed. For items with directional requirements, sorting and orientation devices must also be installed. Items unsuitable for automatic orientation must be manually arranged and placed in the funnel beforehand.
The figure is a schematic of the operating principle of a gravity-fed feeder for powder and granular materials. Material in hopper 1 continuously flows to the quantitative rotating disc 4 under its own weight and the action of agitator 5, and the fixed scraper 2 scrapes excess material from the metering cup of the rotating disc 3, thereby performing the metering operation.<\/p>\n\n\n\n
<\/p>\n\n\n\n
Single-piece material feed device<\/strong> <\/p>\n\n\n\n The figure is a schematic diagram of the principle of a piece-feeding device. Figure (a) shows a single-piece feeding device that can automatically select and orient, suitable for the automatic feeding of cylindrical pieces with relatively small length and diameter. The irregularly shaped material pieces are stored in the hopper. Under the action of orientation mechanism 2 and pusher 6, the material pieces are aligned in the direction of the feed trough 7, and move along the feed trough to feeder 1 under their own weight, thereby realizing intermittent feeding of the material pieces. Figure (b) shows a feeding device for pieces with a relatively large length and diameter that are not easily selected and oriented automatically. The material pieces must first be manually arranged in the hopper. Under the weight of the material pieces and the action of the agitator 2, the material pieces move along the feed trough 7 to the feeder 1, and the feeder sends the material pieces to the next process.<\/p>\n\n\n\n Belt feeder<\/strong> Chain feeding device<\/strong><\/p>\n\n\n\n The figure shows a schematic diagram of a chain conveyor for transporting toothpaste on a toothpaste carton machine. The basic structure of the chain conveyor commonly used to feed packaged goods is shown in the diagram. The pulling mechanism for conveying the items consists of two parallel chain loops. Both chains are connected by small shafts or slats to ensure they remain parallel and equidistant. Special chain plates are attached to the chain, or rollers and paddles are mounted on a small shaft (slat) between the two chains. Accessories such as push plates are used to drive the packaged goods forward. The pull chain generally uses a standard roller chain, or a roller chain with special long chain plates, flat chain, etc. To ensure proper meshing of the chain and sprocket teeth and the precision of the conveyor's position, a chain tensioning device is generally required. Chain conveyors are suitable for the transport of pieces and stems that require precise delivery of packaged items and specific packaging operations during transit.<\/p>\n\n\n\n Rotary disk feeder device Electromagnetic vibration feed device The vacuum pump is the main working component of the vacuum packaging machine, and its performance will directly affect the vacuum level. There are two main types of vacuum pumps used in vacuum packaging machines: one is the oil-bath wet rotary vane vacuum pump (also called the slide valve vacuum pump); the other is the oil-bath wet rotary piston vacuum pump. As shown in the diagram.<\/p>\n\n\n\n Oil bath stirrer vacuum pump Oil bath rotating ram vacuum pump<\/strong><\/p>\n\n\n\n In the packaging process, feeding devices play a crucial role in ensuring the smooth and efficient transfer of material to the metering device for packaging. Various types of feeding devices, such as gravity feeders, belt feeders, chain conveyors, vibratory feeders, and rotary disc feeders, are designed to meet the requirements of different materials and packaging processes. These devices must be tailored to the physical and chemical properties of the items being fed to ensure reliability and prevent issues such as clogging or misalignment.<\/p>\n\n\n\n In addition, vacuum pumps, such as oil-bath siphon rotors and rotary ram pumps, are essential components of vacuum packaging machines, ensuring the proper vacuum level to preserve items. The selection of appropriate feed and vacuum devices ensures efficient, reliable, and safe packaging operations, which is crucial for meeting both production and quality standards.<\/p>\n\n\n\n Learn about the different feed devices (gravity, belt, vibratory, etc.) and vacuum pumps (oil-bath siphon rotor and rotary vane) used in packaging machines for efficient material handling and vacuum packaging processes.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Comprehensive Guide to Feeding and Vacuum Devices in Packaging Machines","_seopress_titles_desc":"Ketahui tentang peranti suapan yang berbeza (graviti, tali pinggang, getaran, dsb.) dan pam vakum (rotor sipi mandian minyak dan ram putar) yang digunakan dalam mesin pembungkusan untuk pengendalian bahan yang cekap dan proses pembungkusan vakum.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","footnotes":""},"categories":[1],"tags":[96],"class_list":["post-9224","post","type-post","status-publish","format-standard","hentry","category-blog","tag-pembungkusan-vakum"],"_links":{"self":[{"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/posts\/9224","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/comments?post=9224"}],"version-history":[{"count":2,"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/posts\/9224\/revisions"}],"predecessor-version":[{"id":9237,"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/posts\/9224\/revisions\/9237"}],"wp:attachment":[{"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/media?parent=9224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/categories?post=9224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lintyco.my\/en\/wp-json\/wp\/v2\/tags?post=9224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/figure>\n\n\n\n
Belt feeders can be used to supply bulk goods, blocks, bags, and pieces, and can consist of multiple belts to meet various packaging process requirements.
The figure shows the principle diagram of the belt conveyor. Items are transported from chute 5 to unloading device 6 and unloaded. Tensioning device 8 is used to adjust the belt tension, and steering roller 7 is used to increase the wrap angle to ensure the belt's conveying capacity.
The conveyor belt in a belt feeder comes into contact with the items. Depending on the physical and chemical properties and hygiene requirements of the goods being transported, the appropriate belt material must be selected and the necessary physical and chemical treatments applied. Conveyor belts include cotton canvas belts, chemical fiber fabric belts, rubber canvas belts, nylon sheet belts, steel belts, metal mesh belts, etc. Common physical and chemical treatment methods for belts include impregnation, surface protective coating, etc.<\/p>\n\n\n\n<\/figure>\n\n\n\n
<\/p>\n\n\n\n<\/figure>\n\n\n\n
<\/strong>As the rotating disc spins, the materials stored in the disc hopper can move to the outer edge of the disc under the action of friction and centrifugal force, and are arranged tangentially along the disc's tangential direction before entering the tangential conveyor channel at the disc's outer edge. By installing a specific delivery device on the delivery channel, automatic segregation and directional arrangement of the materials can be achieved.<\/p>\n\n\n\n<\/figure>\n\n\n\n
The figure shows the principle of operation of the conical bottom-disk feeding device. The conical bottom disk can increase the tendency of the material to move toward the outer edge of the rotating disk. Materials are arranged tangentially along the direction of the disc and enter the conveyor trough alternately. This device features a simple structure and reliable operation. It is suitable for automatic sorting and directional feeding of small columns, arms, covers, blocks, and sheet materials.<\/p>\n\n\n\n
<\/strong>A vibratory conveying device is a device that uses vibration technology to transport loose powder and small items over medium and short distances. According to the structure of the vibrating body, they can be divided into straight-trough and disc-chute types; according to the type of excitation source, they can be divided into mechanical, electromagnetic, hydraulic, and pneumatic types. Here we primarily introduce the electromagnetic vibrating feeding device.<\/p>\n\n\n\n<\/figure>\n\n\n\n
Structure of the electromagnetic vibrating feeder: it generally consists of an electromagnetic coil, an armature, a vibrating body, a main vibration spring, a spring, and a vibration-damping base. As shown in the diagram, the vibrating bowl body (or funnel) is supported at the base by the main vibration plate spring; the iron core and electromagnetic coil are mounted at the base; and the armature is mounted at the bottom of the vibrating body. There is an angle between the working surface of the vibrating hopper body and the horizontal plane (there is a loop conveyor channel with a loop rise angle a in the vibrating funnel), and there is also an angle between the main vibration plate spring and the pipe plane. The entire device is connected with bolts, vibration damping springs, and a frame.
Clearly, the principles of the disc-type funnel and the straight-chute type are essentially the same, except that the straight-chute conveyor channel is converted into a looped conveyor channel, and the oscillatory motion is replaced by a torsional motion.
Take a straight-bore vibrating feed device as an example to illustrate the operating principle of vibrating feed devices.<\/p>\n\n\n\n![\"packagingequpment011\"](\"https:\/\/images.thepackagingmachine.com\/2025\/03\/packagingequpment011-802x1024.jpg\")
<\/figure>\n\n\n\n
As shown in Figure (a), an object is placed inside a plunger body. The plunger body undergoes forced directional vibration under the action of electromagnetic excitation forces and the main vibration plate spring. When the plunger body moves upward to the right, the object is pushed by the plunger body via frictional forces and acquires rightward-upward accelerated motion; When the tank body moves upward to the right, or accelerates downward to the left under the action of electromagnetic force, because the object has acquired a certain kinetic energy when accelerating upward to the right, the object still tends to continue moving upward to the right or to slide a distance to the right relative to the working surface of the tank body, or even to make an upper-right diagonal movement and pass through the working rear surface of the body. When the tank body moves upward to the right again, the object is once again accelerated by friction, and the above motion cycle is repeated. In this way, each time the tank body reciprocates and vibrates, the article moves a certain distance to the right relative to the tank's companion body, thereby meeting the requirements for supplying the article.<\/p>\n\n\n\nVacuum device<\/h2>\n\n\n\n
<\/strong>Working principle: as shown in the diagram. The rotary sliding valve 9 is installed in the pump 12, which consists of a valve sleeve and a valve stem. The valve sleeve on the rotary sliding valve is fitted onto the bevel gear 10, and the geometric center of the rotating shaft 11 and the pump chamber 13 coincide. The valve stem at the top of the rotary slide valve can slide freely up and down in the cylindrical slide bolt 2 and swing left and right. The valve ring arm slides along the surface of the pump chamber 13. As shaft 11 rotates counterclockwise, the rotary slide valve 9 divides the pump chamber 13 into two working chambers, and the volume of chamber A gradually expands, while the volume of chamber B gradually decreases. The gas pressure in chamber A continues to decrease, and the pumped gas enters chamber A through the cavity in the valve stem and the rectangular hole on the side. When the rotary slide valve reaches the upper dead center of the pump chamber 13, suction ends, and chamber A reaches its maximum suction volume, at which point the rectangular hole closes. The pump shaft 11 continues to rotate, and the volume of the original working chamber gradually decreases again, the gas is compressed, and the pressure continues to increase. When it exceeds the pressure of the exhaust valve spring 7, the gas forces it open and is discharged. Both chambers A and B operate alternately. When chamber A is suctioning, chamber B is exhausting. Each rotation of the pump shaft completes one suction and exhaust cycle.<\/p>\n\n\n\n<\/figure>\n\n\n\n
<\/strong>Working principle: as shown in the diagram. When the cam 5 with two rams 6 rotates clockwise, ram G slides along the inner wall of the pump body 8 under the pressure of spring 4 and its own centrifugal force, and the right suction chamber continues to expand, with the pumped gas entering through suction port l. When the other ram passes the suction port position, the suctioned gas is isolated and the suction cycle is complete. The rotor continues to rotate, the isolated gas is gradually compressed, and the pressure increases. When the pressure exceeds that at the exhaust valve 3, the gas forces the exhaust valve 3 through the exhaust pipe and is discharged through the oil and the pump's exhaust port. During pump operation, the ram constantly divides the pump chamber into two working chambers, A (suction) and B (discharge). Each time the eccentric rotor completes one revolution, two suction and exhaust processes occur.<\/p>\n\n\n\nConclusion<\/h2>\n\n\n\n
<\/ol>","protected":false},"excerpt":{"rendered":"