Take-out box pressing production line

Abstract

The invention relates to a take-out box pressing production line. The take-out box pressing production line comprises a rack, a transmission chain and a transmission gear are rotationally connected to the rack, a plurality of molds are arranged on the transmission chain, a pressing mold is further arranged on the rack in a lifting and sliding mode, a discharging frame is further rotationally connected to the rack, a plurality of clamping strips are arranged on the discharging frame, and a cooling fan is further arranged on the rack. The first driving part drives the pressing die to move in a reciprocating mode, so that the sheet is sequentially extruded to all the dies to form the shape of the take-out box, then the pressing die is separated from the sheet, the transmission chain rotates to drive the pressed film to move to be close to the discharging frame, and the pressed film is placed above the multiple clamping strips; the clamping strips are clamped into the gaps between the two adjacent rows of take-out boxes with the shapes pressed on the film materials, the discharging frame rotates to lift and strip the film materials from the mold and convey the film materials in the direction away from the transmission chain, continuous mold pressing and demolding are achieved, the operation that workers continuously and repeatedly place plastic sheets and take out the formed take-out box film materials is omitted, and the working efficiency is improved. The time is saved, and the processing efficiency of the take-out box is improved.

Description

Technical Field

[0001] This application relates to the field of takeaway box production, and in particular to a takeaway box pressing production line. Background Technology

[0002] Takeout boxes are a type of food delivery tool that people use very frequently in their daily lives. With the acceleration of people's work and life pace, the takeout industry has developed rapidly. Takeout merchants usually use takeout boxes to pack food. During the production of takeout boxes, plastic granules need to be made into plastic sheets, and then a large piece of plastic sheet is pressed into plastic takeout box film material.

[0003] For example, the utility model patent with patent publication number CN218256281U discloses a stamping device for producing biodegradable lunch boxes, including a support mechanism, an upper stamping mechanism and a lower stamping mechanism. The upper stamping mechanism includes a first hydraulic cylinder, an upper base plate, a fixing bolt, a cylinder base, a cylinder, a housing fixing sleeve, an upper mold housing, a spring, a pressure plate, a third hydraulic cylinder and an upper mold. The lower stamping mechanism includes a hydraulic cylinder base, a second hydraulic cylinder, a lower base plate, a screw base, a rotating handle, a mold fixing sleeve, a lower mold and a screw. The operation and replacement of the upper mold housing and the upper mold are simpler and faster.

[0004] Using the aforementioned stamping device for producing biodegradable lunch boxes, after the plastic sheet is stamped into takeaway box film by the upper and lower stamping mechanisms, the formed takeaway box film needs to be removed from the lower base plate and then placed back on the lower base plate for stamping. The workers need to repeatedly place the plastic sheet on the lower base plate and remove the formed takeaway box film from the lower base plate, which is quite troublesome and affects the production efficiency of takeaway boxes, and needs to be improved. Summary of the Invention

[0005] To address the cumbersome process of repeatedly placing plastic sheets onto the bottom plate and removing the formed takeaway box film from the bottom plate, this application provides a takeaway box pressing production line.

[0006] This application provides a takeaway box pressing production line, which adopts the following technical solution:

[0007] A takeaway box pressing production line includes a frame, on which a transmission chain and several transmission gears are rotatably connected. The transmission chain is sleeved on the outside of the several transmission gears and meshes with them. Several molds are provided on the transmission chain, and the molds are distributed around the outer periphery of the transmission chain. A drive assembly for driving the transmission gears to rotate is provided on the frame. A pressing mold is also raised and lowered and slidable on the frame. The pressing mold is located above the transmission chain. A drive component for driving the pressing mold to move is provided on the frame.

[0008] A feeding rack is rotatably connected to the frame. The feeding rack is located on one side of the transmission chain along the rotation direction. The feeding rack is provided with several locking strips, which are circumferentially distributed around the rotation axis of the feeding rack. The frame is provided with a second drive assembly for driving the feeding rack to rotate. The frame is also provided with a cooling fan, the air outlet of which faces the transmission chain.

[0009] By adopting the above technical solution, the sheet is placed between the mold and the pressing mold. The driving component drives the pressing mold to move back and forth, thereby pressing the sheet onto each mold in sequence to form the shape of a takeaway box. Then the pressing mold is separated from the sheet. The transmission chain rotates and drives the film material with the pressed shape on several molds to move closer to the unloading rack, so that the sheet continues to enter between the mold and the pressing mold for processing. During the movement, the cooling fan blows air to cool and shape the film material on the mold.

[0010] The pressed film material is placed above several clips, which are then inserted into the gaps between adjacent rows of takeout boxes on the pressed film material. The drive assembly two drives the unloading rack to rotate, which in turn moves the clips, causing them to sequentially engage with the gaps between adjacent rows of takeout boxes on the pressed film material. This lifts the film material off the mold, peels it off, and transports it away from the drive chain, achieving continuous pressing and demolding. This eliminates the need for workers to repeatedly place plastic sheets and remove the molded takeout box film material, saving time and improving the processing efficiency of takeout boxes.

[0011] Optionally, the mold has several forming grooves on its end face away from the transmission chain, and air passages are provided on the mold. The air passages are connected to the forming grooves. A slider is slidably connected to the frame. The slider slides closer to or away from the unloading rack. An air extraction pipe is slidably connected to the slider. The air extraction pipe slides closer to or away from the mold. The air extraction pipe is used to connect to the air passages. The slider is provided with a second driving component for driving the air extraction pipe to move.

[0012] A push block is also slidably connected to the frame. The push block is located on the side of the slider near the unloading rack. The sliding direction of the push block is parallel to the sliding direction of the slider. The frame is provided with a driving component three for driving the push block to move.

[0013] By adopting the above technical solution, the second driving component drives the suction pipe to move closer to the mold, so that the suction pipe and the air channel are connected. The gas in the forming groove is extracted through the suction pipe. Under the change of air pressure, the sheet in the forming groove is further deformed and attached to the inner wall of the forming groove. At this time, the suction pipe and the slider move together with the mold. After the sheet with the pressed shape is cooled and shaped by the cooling fan, the second driving component drives the suction pipe to disengage from the air channel. The third driving component drives the push block to push the slider away from the unloading rack until the slider returns to its original position, which helps to improve the quality of the produced takeaway boxes.

[0014] Optionally, the frame is provided with a limiting block, which is located on the side of the push block away from the unloading frame. The slider is provided with a magnetic block, and the frame is provided with a permanent magnet and a buffer. The permanent magnet and the buffer are both located on the side of the limiting block away from the push block, and the permanent magnet is used to attract the magnetic block.

[0015] By adopting the above technical solution, when the push block pushes the slider away from the unloading frame, the limit block abuts against the push block to limit its movement. At this time, the permanent magnet attracts the magnetic block, causing the slider and the push block to separate. This reduces the impact force generated by the slider hitting the frame during the push block's movement, which could damage the slider and the push block. This helps extend the service life of the slider and the push block. Furthermore, the buffer abuts against the slider to cushion it, reducing the impact force between the slider and the permanent magnet.

[0016] Optionally, the frame is provided with a proximity switch and a controller. The proximity switch is located on the side of the slider that is close to the unloading rack. The proximity switch is used to sense the slider and output a sensing signal to the controller. The controller receives the sensing signal and controls the second drive component to drive the air extraction pipe to move away from the mold, and controls the third drive component to drive the push block to move away from the unloading rack.

[0017] By adopting the above technical solution, when the slider moves too far with the mold and the air extraction pipe does not leave the air passage, the proximity switch senses the slider and outputs a sensing signal to the controller. The controller receives the sensing signal and controls the second drive component to drive the air extraction pipe to move away from the mold, so that the air extraction pipe leaves the air passage. It also controls the third drive component to drive the push block to move away from the unloading rack, pushing the slider back to its original position, which can reduce the occurrence of faults during the operation of the pressing production line.

[0018] Optionally, the inner wall of the forming groove is provided with a sandblasting layer, the sandblasting layer is located at the bottom of the forming groove, and the sandblasting layer has a plurality of air holes, the air holes being connected to the air passage.

[0019] By adopting the above technical solution, the airflow is diverted through the air holes, making the inhalation more uniform and the inhalation effect better.

[0020] Optionally, a top block is slidably connected inside the mold. The top block is located on one side of the forming groove along the rotation direction of the transmission chain. The top block slides into or out of the forming groove. A movable ball is provided on the top block. The movable ball is located on the side of the top block away from the forming groove. A transmission block is also hinged inside the mold. The transmission block is located on the side of the top block away from the forming groove. A movable groove is opened on the transmission block. The movable ball is movably connected in the movable groove.

[0021] The transmission block is provided with a guide surface, which is located on the side of the transmission block near the forming groove and inclined away from the top block in a direction away from the forming groove. A clamping block is also slidably connected inside the mold, which is located on the side of the transmission block near the guide surface. The clamping block slides closer to or away from the forming groove. An elastic rope is provided on the clamping block and is connected to the adjacent mold. An elastic element is provided on the hinge shaft of the transmission block, which abuts against the mold, so that the guide surface abuts against the clamping block.

[0022] By adopting the above technical solution, when the transmission chain drives the mold to rotate along the surface of the transmission gear, the distance between two adjacent molds is increased. The mold in front is pulled away from the forming groove by the elastic rope. The clamping block presses against the guide surface and pushes the transmission block to flip. The transmission block presses against the movable ball and pushes the top block to slide into the forming groove. The top block pushes the film material in the forming groove, causing the film material to partially separate from the inner wall of the forming groove. This allows the film material to be pulled away from the mold by the unloading frame, reducing the situation where the film material is too tightly fitted to the inner wall of the forming groove, which would cause the film material to deform under the pull of the unloading frame. This is beneficial to improving the quality of the produced takeaway boxes.

[0023] When the transmission chain drives the mold to disengage from the transmission gear, the distance between two adjacent molds decreases. Under the action of the elastic element, the transmission block pushes the clamping block to move closer to the forming groove, causing the elastic rope to extend into the mold. At the same time, it abuts against the movable ball through the inner wall of the movable groove, causing the top block to slide away from the forming groove.

[0024] Optionally, the frame includes a frame body, a slide block slidably connected to the frame body, and a driving component four disposed on the slide block. The transmission chain, transmission gear, and driving assembly one are disposed on the frame body. The slide block slides closer to or away from the unloading rack, and the driving component one is disposed on the slide block.

[0025] The pressing mold includes a slide table that slides vertically and horizontally on the slide base, a plurality of pressing blocks and an elastic element two disposed on the slide table, and a pressing frame that slides vertically and horizontally on the slide base. The driving element one drives the slide table to move. The lower end of the pressing frame is located below the lower end of the pressing block. A through hole is opened on the pressing frame. The pressing block is located in the through hole. The elastic element two abuts against the pressing frame, so that the pressing frame has a downward tendency.

[0026] By adopting the above technical solution, when the drive slide moves down, the pressure frame presses against the sheet to limit the sheet, reducing the displacement of the sheet during the extrusion process, and dividing the sheet to be extruded into several parts. When the pressure block presses down, only the sheet part located in the corresponding through hole can be extruded, making the properties of the formed takeaway box more uniform.

[0027] Optionally, the frame further includes a mounting base slidably connected to the frame body, the mounting base sliding closer to or further away from the mold, the unloading rack and the second drive assembly being disposed on the mounting base, and the frame body being provided with a third drive assembly for driving the mounting base to move.

[0028] By adopting the above technical solution, the movement of the three-drive mounting base of the drive component can be controlled according to the thickness or material of the takeaway box to be produced, so as to adjust the distance between the unloading rack and the transmission chain, thereby adjusting the size of the included angle between the film material suspended on the card strip and the transmission chain, so that the film material can be removed from the mold under the pull of the unloading rack.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. The driving component drives the pressing mold to move back and forth, thereby pressing the sheet material onto each mold in sequence to form the shape of the takeaway box. Then, the pressing mold is released from the sheet material. The transmission chain rotates and drives the film material with the pressed shape on several molds to move closer to the unloading rack. The pressed film material is placed above several clips, and the clips are inserted into the gaps between two adjacent rows of takeaway boxes with the pressed shape on the film material. The unloading rack rotates to lift the film material off the mold, peel it off, and transport it away from the transmission chain. This realizes continuous pressing and demolding, which eliminates the need for workers to repeatedly place plastic sheets and remove the formed takeaway box film material, saving time and improving the processing efficiency of takeaway boxes.

[0031] 2. When the push block pushes the slider away from the unloading frame, the limit block abuts against the push block to limit its movement. At this time, the permanent magnet attracts the magnetic block, causing the slider and the push block to separate. This reduces the impact force generated by the slider hitting the frame during the push block's movement, which could damage the slider and the push block and help extend their service life.

[0032] 3. When the transmission chain drives the mold to rotate along the surface of the transmission gear, the distance between two adjacent molds is increased. The mold in front is pulled away from the forming groove by the elastic rope. The clamping block presses against the guide surface and pushes the transmission block to flip, which in turn pushes the top block to slide into the forming groove. This causes the film material to partially separate from the inner wall of the forming groove, so that the film material can be pulled away from the mold by the unloading frame. This reduces the situation where the film material is too tightly fitted to the inner wall of the forming groove, which would cause the film material to deform under the pull of the unloading frame. This helps to improve the quality of the takeaway boxes produced. Attached Figure Description

[0033] Figure 1 This is an overall schematic diagram illustrating its use in the embodiments of this application;

[0034] Figure 2This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the transmission gear;

[0035] Figure 3 for Figure 2 An enlarged view of section A in the middle, mainly showing the structure of the mold;

[0036] Figure 4 for Figure 2 The enlarged view of section B mainly shows the structure of the pressure frame;

[0037] Figure 5 This is a partial cross-sectional view of an embodiment of this application, mainly showing the structure of the sandblasted layer;

[0038] Figure 6 for Figure 5 The enlarged view of section C mainly shows the structure of elastic element one;

[0039] Figure 7 for Figure 2 The enlarged view of section D mainly shows the structure of the proximity switch;

[0040] Figure 8 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the cooling fan.

[0041] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Frame body; 12. Slide; 13. Drive component four; 14. Mounting base; 2. Transmission gear; 3. Transmission chain; 4. Drive assembly one; 41. Reducer one; 42. Motor one; 5. Press mold; 51. Slide table; 52. Press block; 53. Press frame; 531. Frame body; 5311. Through hole; 532. Guide rod; 533. Bolt; 54. Elastic component two; 6. Drive component one; 7. Drive assembly three; 71. Lead screw; 72. Motor three; 8. Unloading rack; 9. Clamping strip; 10. Drive assembly two; 101. Reducer two; 102. Motor two ; 15. Mold; 151. Main body; 1511. Molding groove; 152. Branch pipe; 16. Sandblasting layer; 17. Air passage; 18. Top block; 181. Block; 182. Connecting rod; 19. Moving ball; 20. Transmission block; 201. Moving groove; 21. Guide surface; 22. Clamping block; 23. Elastic rope; 24. Elastic component one; 25. Slider; 26. Air extraction pipe; 27. Driving component two; 28. Push block; 29. ​​Driving component three; 30. Limiting block; 31. Magnetic block; 32. Permanent magnet; 33. Buffer component; 34. Proximity switch; 35. Controller; 36. Cooling fan. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0043] This application discloses a takeaway box pressing production line. See also... Figure 1 and Figure 2 The takeaway box pressing production line includes a frame 1, which includes a frame body 11, a slide 12, a drive component 13, and a mounting base 14. Several transmission gears 2 are rotatably connected to the frame body 11. The rotation axis of the transmission gears 2 is horizontally arranged. In this embodiment, there are four transmission gears 2, which are arranged in a rectangular shape. The four transmission gears 2 are divided into two groups, and the two transmission gears 2 in each group are coaxially fixed.

[0044] See Figure 2 and Figure 3 The frame 11 is also rotatably connected to a transmission chain 3. In this embodiment, there are two transmission chains 3. Each transmission chain 3 is sleeved on the outside of the two transmission gears 2 located on the same side of the two sets of transmission gears 2 and meshes with the transmission gears 2. The frame 11 is provided with a drive assembly 4, which includes a reducer 41 and a motor 42. The reducer 41 is fixed on the frame 11. The output end of the reducer 41 is coaxially fixed with one of the transmission gears 2. The motor 42 is fixed on the reducer 41, and the output end of the motor 42 is connected to the input end of the reducer 41. The motor 42 drives the corresponding transmission gear 2 to rotate through the cooperation between it and the reducer 41.

[0045] See Figure 2 and Figure 3 The slide 12 is located above the transmission chain 3 and is horizontally slidably connected to the frame 11. The sliding direction of the slide 12 is perpendicular to the rotation axis of the transmission gear 2. The drive component 13 is fixed to the frame 11. The piston rod of the drive component 13 is fixedly connected to the slide 12. The drive component 13 drives the slide 12 to move. In this embodiment, the drive component 13 is a cylinder.

[0046] See Figure 2 and Figure 4 A pressure mold 5 slides up and down on the slide block 12. The pressure mold 5 is located above the transmission chain 3. The pressure mold 5 includes a slide table 51, several pressure blocks 52, a pressure frame 53, and an elastic element 54. The slide table 51 is located below the slide block 12 and slides up and down on the slide block 12. A driving element 6 is fixed on the slide block 12. The piston rod of the driving element 6 is fixedly connected to the slide table 51. The driving element 6 drives the slide table 51 to move. In this embodiment, the driving element 6 is a cylinder.

[0047] See Figure 2 and Figure 4Several pressure blocks 52 are fixed to the lower end of the slide table 51 and are evenly spaced along the rotation axis of the transmission gear 2. The pressure frame 53 includes a frame body 531, several guide rods 532, and bolts 533. The frame body 531 is located below the slide table 51. Several guide rods 532 are fixed to the side of the frame body 531 near the slide table 51 and pass through the slide table 51. The guide rods 532 slide up and down on the slide table 51. The frame body 531 slides up and down on the slide table 51 through the cooperation of the guide rods 532 and the slide table 51. On the platform 51, the frame 531 has several through holes 5311. The number and position of the through holes 5311 correspond one-to-one with the number and position of the pressure blocks 52. Each pressure block 52 is located in the corresponding through hole 5311, and the lower end of the frame 531 is located below the lower end of the pressure block 52. The number and position of the bolts 533 correspond one-to-one with the number and position of the guide rods 532. Each bolt 533 is located on the side of the slide table 51 away from the frame 531 and is threaded to the corresponding guide rod 532.

[0048] See Figure 4 The number and position of the second elastic element 54 correspond one-to-one with the number and position of the guide rod 532. Each second elastic element 54 is located between the slide table 51 and the frame 531 and is sleeved on the outside of the corresponding guide rod 532. The opposite ends of each second elastic element 54 abut against the slide table 51 and the frame 531 respectively, so that the frame 531 has a downward tendency. In this embodiment, the second elastic element 54 is a spring.

[0049] See Figure 2 and Figure 3 The mounting base 14 is located on one side of the slide 12 along the rotation direction of the transmission chain 3 and is slidably connected to the frame 11. The mounting base 14 slides horizontally closer to or away from the slide 12. The frame 11 is provided with a drive assembly 7. In this embodiment, the drive assembly 7 includes a lead screw 71 and a motor 72. The lead screw 71 passes through the mounting base 14 and is threadedly connected to the mounting base 14. The motor 72 is fixed to the frame 11. The output end of the motor 72 is fixedly connected to the lead screw 71. The motor 72 drives the lead screw 71 to rotate. The lead screw 71 drives the mounting base 14 to move through the threaded engagement with the mounting base 14.

[0050] See Figure 2 and Figure 3A feeding rack 8 is rotatably connected to the mounting base 14. The feeding rack 8 is located on one side of the transmission chain 3 along the rotation direction and above the transmission chain 3. Several clamping strips 9 are fixed on the feeding rack 8. The clamping strips 9 are evenly distributed around the rotation axis of the feeding rack 8. A second drive assembly 10 is provided on the mounting base 14. The second drive assembly 10 includes a second reducer 101 and a second motor 102. The second reducer 101 is fixed on the mounting base 14. The output end of the second reducer 101 is fixedly connected to the feeding rack 8. The second motor 102 is fixed on the reducer, and the output end of the second motor 102 is connected to the input end of the second reducer 101. The second motor 102 drives the feeding rack 8 to rotate through the cooperation between it and the second reducer 101.

[0051] See Figure 3 and Figure 4 A number of molds 15 are fixed on the transmission chain 3. The molds 15 are evenly spaced around the outer periphery of the transmission chain 3. Each mold 15 includes a main body 151 and a branch pipe 152. Each main body 151 is fixedly connected to two transmission chains 3. The branch pipe 152 is fixed to one end of the main body 151. The branch pipes 152 on two adjacent main bodies 151 are located on opposite sides of the main body 151. A number of forming grooves 1511 are opened on the end face of each main body 151 away from the transmission chain 3. The forming grooves 1511 are evenly spaced along the rotation axis of the transmission gear 2. The number and position of the forming grooves 1511 on the same main body 151 correspond one-to-one with the number and position of the pressure block 52.

[0052] See Figure 2 and Figure 3 Each molding groove 1511 has a sandblasting layer 16 fixed on its inner wall. The sandblasting layer 16 is located at the bottom of the molding groove 1511 and forms the bottom wall of the molding groove 1511. Several air holes are opened on the sandblasting layer 16, and the air holes are arranged at intervals. The main body 151 and the branch pipe 152 are spliced ​​to form an air channel 17. The air channel 17 is connected to the several molding grooves 1511 on the main body 151, and the air channel 17 is connected to the air holes. In actual use, the diameter of the air holes is 0.3mm.

[0053] See Figure 5 and Figure 6 Each main body 151 is slidably connected to a top block 18. The number and position of the top blocks 18 correspond one-to-one with the number and position of the forming grooves 1511. Each top block 18 is located on one side of the corresponding forming groove 1511 along the rotation direction of the transmission chain 3. Each top block 18 includes a block 181 and a connecting rod 182. The block 181 is slidably connected to the main body 151, and the block 181 slides into or out of the forming groove 1511. The connecting rod 182 is fixed on the side of the block 181 away from the forming groove 1511. Each connecting rod 182 is fixed with a movable ball 19, which is located at the end of the connecting rod 182 away from the corresponding forming groove 1511.

[0054] See Figure 5 and Figure 6 Each main body 151 is also hinged with a transmission block 20. The number and position of the transmission blocks 20 correspond one-to-one with the number and position of the blocks 181. The transmission block 20 is located on the side of the corresponding block 181 away from the forming groove 1511, and the hinge axis of the transmission block 20 is parallel to the rotation axis of the transmission gear 2. Each transmission block 20 is provided with a movable groove 201 on the outer side wall near the block 181. The movable ball 19 is movably connected in the movable groove 201. The inner wall of the movable groove 201 is gradually narrowed in the direction away from the bottom of the groove. The inner wall of the groove opening of the movable groove 201 abuts against the movable ball 19, thereby limiting the movable ball 19 and preventing the movable ball 19 from leaving the movable groove 201.

[0055] See Figure 5 and Figure 6 Each transmission block 20 has a guide surface 21 machined on its outer side wall. The guide surface 21 is located on the side of the transmission block 20 near the forming groove 1511 and below the corresponding block 181. The guide surface 21 is inclined away from the corresponding block 181 in a direction away from the corresponding forming groove 1511.

[0056] See Figure 5 and Figure 6 Each main body 151 is also slidably connected with a clamping block 22. The number and position of the clamping blocks 22 correspond one-to-one with the number and position of the transmission blocks 20. The clamping blocks 22 are located on the side of the transmission block 20 near the guide surface 21 and slide close to or away from the corresponding molding groove 1511. The sliding direction of the clamping blocks 22 is parallel to the sliding direction of the block 181. Each clamping block 22 is fixed with an elastic rope 23. The elastic rope 23 is located on the side of the clamping block 22 away from the corresponding molding groove 1511. The elastic rope 23 passes through the main body 151 along the rotation direction of the transmission chain 3 and is fixedly connected to the adjacent main body 151. Each transmission block 20 is equipped with an elastic element 24 on its hinge shaft. The elastic element 24 abuts against the main body 151, so that the guide surface 21 abuts against the clamping block 22. In this embodiment, the elastic element 24 is a torsion spring, and the elastic rope 23 is made of rubber.

[0057] In actual use, when the transmission chain 3 drives the main body 151 to rotate along the surface of the transmission gear 2, the distance between two adjacent main bodies 151 is increased. The main body 151 in front pulls the clamping block 22 away from the forming groove 1511 through the elastic rope 23. The clamping block 22 presses against the guide surface 21 and pushes the transmission block 20 to flip. The transmission block 20 presses against the movable ball 19 and pushes the block 181 to slide into the forming groove 1511. The block 181 pushes the film material in the forming groove 1511, so that the film material is partially separated from the inner wall of the forming groove 1511, so that gas can enter between the film material and the inner wall of the forming groove 1511, reducing the friction between the film material and the inner wall of the forming groove 1511, so that the film material can be released from the mold 15 under the pull of the unloading frame 8, reducing the situation where the film material is too tightly fitted to the inner wall of the forming groove 1511, which would cause the film material to deform under the pull of the unloading frame 8.

[0058] See Figure 3 A number of sliders 25 are slidably connected to the frame 11. The sliders 25 are located on opposite sides of the main body 151, and there are two sliders 25 on the same side of the main body 151. Each slider 25 slides horizontally closer to or away from the unloading rack 8. A suction pipe 26 is slidably connected to the slider 25. The suction pipe 26 slides along the rotation axis of the transmission gear 2 closer to or away from the main body 151. The suction pipe 26 is used to be sleeved onto the branch pipe 152 so that the inside of the suction pipe 26 is connected to the air passage 17. A second driving component 27 is fixed on each slider 25. The piston rod of the second driving component 27 is fixedly connected to the suction pipe 26. The second driving component 27 drives the suction pipe 26 to move. In this embodiment, the second driving component 27 is a cylinder.

[0059] See Figure 3 The frame 11 is also slidably connected with push blocks 28. The number and position of push blocks 28 correspond one-to-one with the number and position of sliders 25. Each push block 28 is located on the side of the corresponding slider 25 near the unloading rack 8. The sliding direction of the push block 28 is parallel to the sliding direction of the corresponding slider 25. A drive component 29 is fixed on the frame 11. The push blocks 28 are fixed on the moving block of the drive component 29. The drive component 29 drives the push blocks 28 to move. In this embodiment, the drive component 29 is a rodless cylinder.

[0060] In actual use, the second driving component 27 drives the suction pipe 26 to move closer to the mold 15, so that the suction pipe 26 is sleeved on the branch pipe 152 and connected to the air passage 17. The gas in the forming groove 1511 is extracted through the suction pipe 26, so that the sheet in the forming groove 1511 is further deformed and adheres to the inner wall of the forming groove 1511. At this time, the suction pipe 26 and the slider 25 move together with the mold 15. When the slider 25 moves to the corresponding position, the second driving component 27 drives the suction pipe 26 to disengage from the air passage 17, and the third driving component 29 drives the push block 28 to push the slider 25 away from the unloading rack 8, so that the slider 25 returns to its original position.

[0061] Meanwhile, the suction pipe 26 located on the other side of the main body 151 is connected to the branch pipe 152 on the next main body 151 under the drive of the corresponding drive component 27 to suck air. By controlling the slider 25 and push block 28 located on both sides of the main body 151, the sheets located on each main body 151 are sucked air in an orderly manner.

[0062] See Figure 3 Limiting blocks 30 are fixed on the frame 11. The number and position of the limiting blocks 30 correspond one-to-one with the number and position of the push blocks 28. Each limiting block 30 is located on the side of the corresponding push block 28 away from the unloading rack 8. Each slider 25 is fixed with a magnetic block 31. The magnetic block 31 is located on the side of the slider 25 away from the corresponding push block 28. Permanent magnets 32 and buffers 33 are fixed on the frame 1. The number and position of the permanent magnets 32 and buffers 33 correspond one-to-one with the number and position of the sliders 25. The permanent magnets 32 and buffers 33 are located on the side of the corresponding limiting block 30 away from the push block 28 and on the side of the corresponding slider 25 away from the push block 28. The permanent magnets 32 are used to attract the magnetic blocks 31 on the corresponding slider 25. In this embodiment, the buffers 33 are hydraulic buffers. The limiting blocks 30 and the drive unit 29 are integrally set.

[0063] In practical use, when the push block 28 pushes the slider 25 away from the unloading rack 8, the limit block 30 abuts against the push block 28 to limit the push block 28. At this time, the permanent magnet 32 ​​attracts the magnetic block 31, causing the slider 25 and the push block 28 to separate. This reduces the impact force generated by the slider 25 hitting the frame 1 during the process of the push block 28 pushing the slider 25 to move, which could cause damage to the slider 25 and the push block 28. This helps to extend the service life of the slider 25 and the push block 28. The buffer 33 abuts against the slider 25 to buffer the slider 25 and reduce the impact force between the slider 25 and the permanent magnet 32.

[0064] See Figure 2 and Figure 7 The frame 11 is fixed with proximity switches 34 and controller 35. The number and position of the proximity switches 34 are the same as those of the slider 25 (see [reference]). Figure 3 The number and position of the proximity switches 34 correspond one-to-one with the corresponding slider 25 (see [link]). Figure 3 Near the unloading rack 8, a proximity switch 34 is used to sense the slider 25 (see...). Figure 3 It outputs a sensing signal to the controller 35, which receives the sensing signal and controls the drive unit 27 (see...). Figure 3 Drive the corresponding extraction pipe 26 (see) Figure 3 Move away from the main body 151, so that the suction pipe 26 (see Figure 3) Disconnected from branch pipe 152 (see Figure 3 ), and control the drive unit 329 (see Figure 3 Drive pushback block 28 (see) Figure 3 Move it away from the unloading rack.

[0065] In actual use, when the slider 25 moves too far with the mold 15 and the suction pipe 26 does not leave the air passage 17, the proximity switch 34 senses the slider 25 and outputs a sensing signal to the controller 35. The controller 35 receives the sensing signal and controls the second drive component 27 to drive the suction pipe 26 to move away from the mold 15, so that the suction pipe 26 leaves the air passage 17. It also controls the third drive component 29 to drive the push block 28 to move away from the unloading rack 8, pushing the slider 25 back to its original position and reducing the occurrence of malfunctions.

[0066] See Figure 3 and Figure 8 Several cooling fans 36 are also fixed on the frame 11. The cooling fans 36 are located on the upper and lower sides of the transmission chain 3 respectively. The cooling fans 36 located above the transmission chain 3 are located between the slide table 51 and the unloading frame 8. The air outlet of each cooling fan 36 faces the transmission chain 3.

[0067] The implementation principle of a takeaway box pressing production line according to an embodiment of this application is as follows:

[0068] The sheet material is placed between the main body 151 and the frame 531. The drive component 6 drives the slide table 51 to move back and forth, thereby pressing the sheet material onto each main body 151 in sequence through the pressure block 52 to form the shape of the takeaway box. Then the pressure block 52 is removed from the sheet material. The transmission chain 3 rotates and drives the film material with the pressed shape on several main bodies 151 to move closer to the unloading rack 8, so that the sheet material continues to enter between the main body 151 and the pressure block 52 for processing. During the movement, the cooling fan 36 blows air to cool and shape the film material on the mold 15.

[0069] The pressed film material is placed above several clips 9, and the clips 9 are inserted into the gaps between two adjacent rows of takeaway boxes with pressed shapes on the film material. The drive component 2 10 drives the unloading rack 8 to rotate, and the unloading rack 8 drives several clips 9 to move, so that several clips 9 are inserted into the gaps between two adjacent rows of takeaway boxes with pressed shapes on the film material in sequence, thereby lifting the film material from the mold 15, peeling it off and transporting it away from the transmission chain 3, realizing continuous pressing 5 and demolding. This eliminates the need for workers to repeatedly place plastic sheets and take out the formed takeaway box film material, saving time and improving the processing efficiency of takeaway boxes.

[0070] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A take-away box depression production line comprising a rack (1), characterized in that: The frame (1) is rotatably connected to a transmission chain (3) and several transmission gears (2). The transmission chain (3) is sleeved on the outside of several transmission gears (2) and meshes with the transmission gears (2). Several molds (15) are provided on the transmission chain (3). Several molds (15) are distributed around the outer periphery of the transmission chain (3). The frame (1) is provided with a drive assembly (4) for driving the transmission gears (2) to rotate. A pressure mold (5) is also raised and lowered and slid on the frame (1). The pressure mold (5) is located above the transmission chain (3). The frame (1) is provided with a drive component (6) for driving the pressure mold (5) to move. The frame (1) is also rotatably connected to a feeding rack (8), which is located on one side of the transmission chain (3) along the rotation direction. The feeding rack (8) is provided with several clips (9), which are circumferentially distributed around the rotation axis of the feeding rack (8). The frame (1) is provided with a second drive assembly (10) for driving the feeding rack (8) to rotate. The frame (1) is also provided with a cooling fan (36), whose outlet faces the transmission chain (3).

2. The take-out box press line of claim 1, wherein: The mold (15) has several forming grooves (1511) on its end face away from the transmission chain (3). The mold (15) has an air passage (17) connected to the forming grooves (1511). A slider (25) is slidably connected to the frame (1). The slider (25) slides closer to or away from the unloading rack (8). An air extraction pipe (26) is slidably connected to the slider (25). The air extraction pipe (26) slides closer to or away from the mold (15). The air extraction pipe (26) is used to connect to the air passage (17). The slider (25) is provided with a second driving component (27) for driving the air extraction pipe (26) to move. A push block (28) is also slidably connected to the frame (1). The push block (28) is located on the side of the slider (25) close to the unloading rack (8). The sliding direction of the push block (28) is parallel to the sliding direction of the slider (25). The frame (1) is provided with a driving component three (29) for driving the push block (28) to move.

3. The take-out box depression production line according to claim 2, characterized by: The frame (1) is provided with a limiting block (30), which is located on the side of the push block (28) away from the unloading rack (8). The slider (25) is provided with a magnetic block (31). The frame (1) is provided with a permanent magnet (32) and a buffer (33). The permanent magnet (32) and the buffer (33) are both located on the side of the limiting block (30) away from the push block (28), and the permanent magnet (32) is used to attract the magnetic block (31).

4. The take-out box depression production line according to claim 2, wherein: The frame (1) is provided with a proximity switch (34) and a controller (35). The proximity switch (34) is located on the side of the slider (25) close to the unloading rack (8). The proximity switch (34) is used to sense the slider (25) and output a sensing signal to the controller (35). The controller (35) receives the sensing signal and controls the second drive component (27) to drive the air extraction pipe (26) to move away from the mold (15), and controls the third drive component (29) to drive the push block (28) to move away from the unloading rack (8).

5. The take-out box depression production line according to claim 2, wherein: The inner wall of the forming groove (1511) is provided with a sandblasting layer (16), the sandblasting layer (16) is located at the bottom of the forming groove (1511), and a number of air holes are opened on the sandblasting layer (16), the air holes and the air passage (17) are connected.

6. The take-out box depression production line according to claim 2, wherein: A top block (18) is slidably connected inside the mold (15). The top block (18) is located on one side of the forming groove (1511) along the rotation direction of the transmission chain (3). The top block (18) slides into or out of the forming groove (1511). A movable ball (19) is provided on the top block (18). The movable ball (19) is located on the side of the top block (18) away from the forming groove (1511). A transmission block (20) is also hinged inside the mold (15). The transmission block (20) is located on the side of the top block (18) away from the forming groove (1511). A movable groove (201) is opened on the transmission block (20). The movable ball (19) is movably connected in the movable groove (201). The transmission block (20) is provided with a guide surface (21). The guide surface (21) is located on the side of the transmission block (20) close to the forming groove (1511) and is inclined away from the top block (18) in a direction away from the forming groove (1511). A clamping block (22) is also slidably connected inside the mold (15). The clamping block (22) is located on the side of the transmission block (20) close to the guide surface (21). The clamping block (22) slides close to or away from the forming groove (1511). An elastic rope (23) is provided on the clamping block (22). The elastic rope (23) is connected to the adjacent mold (15). An elastic element (24) is provided on the hinge shaft of the transmission block (20). The elastic element (24) abuts against the mold (15), so that the guide surface (21) abuts against the clamping block (22).

7. The take-out box depression production line according to claim 1, wherein: The frame (1) includes a frame (11), a slide (12) slidably connected to the frame (11), and a drive component (13) disposed on the slide (12). The transmission chain (3), transmission gear (2), and drive component (4) are disposed on the frame (11). The slide (12) slides closer to or away from the unloading rack (8). The drive component (6) is disposed on the slide (12). The pressing mold (5) includes a slide table (51) that slides and lifts on the slide block (12), a plurality of pressing blocks (52) and an elastic element (54) provided on the slide table (51), and a pressing frame (53) that slides and lifts on the slide block (12). The driving element (6) drives the slide table (51) to move. The lower end of the pressing frame (53) is located below the lower end of the pressing block (52). The pressing frame (53) has a through hole (5311). The pressing block (52) is located in the through hole (5311). The elastic element (54) abuts against the pressing frame (53), so that the pressing frame (53) has a downward tendency.

8. The take-out box depression production line according to claim 7, wherein: The frame (1) further includes a mounting base (14) slidably connected to the frame body (11), the mounting base (14) slidably close to or away from the mold (5), the unloading rack (8) and the second drive assembly (10) are provided on the mounting base (14), and the frame body (11) is provided with a third drive assembly (7) for driving the mounting base (14) to move.

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