A feeding device for blister tray forming

Abstract

The utility model discloses a kind of feeding devices for blister tray forming, including feeding frame, the inside of discharge frame is symmetrically provided with sliding slot, the inside sliding connection of sliding slot has moving block;The inner wall of sliding slot is rotatably connected with second screw rod;The inner wall of two groups of moving blocks is fixedly connected with fixed frame, the inside sliding connection of fixed frame has moving frame, the inner wall of moving frame is rotatably connected with adjusting roller, and the top of moving frame is rotatably connected with adjusting screw rod;The lower portion of adjusting roller is provided with positioning roller, and the side of positioning roller away from tensioning frame is provided with the positioning plate fixedly connected on the outer surface of moving block.The feeding device for blister tray forming can adjust the position of positioning plate, so that the plastic sheet can pass through the inlet parallelly, and then the edge of the inlet will not pull the plastic sheet, and then prevent the plastic sheet from appearing creases when passing through the inlet, so as to prevent the plastic sheet from leaking when sucking, and further make the plastic sheet more standard and beautiful in appearance after sucking and forming.

Description

Technical Field

[0001] This utility model relates to the field of blister tray forming technology, and in particular to a feeding device for blister tray forming. Background Technology

[0002] Vacuum forming is a process in which plastic is melted and then vacuum-formed, so that the plastic adheres to the outer surface of the mold and is formed into the desired shape. Vacuum forming trays are generally used to vacuum form protective covers similar to egg cartons. The raw material for these items is a roll of plastic sheet. The plastic sheet is transported to the bottom of the vacuum forming tray for vacuum forming. After that, the formed shell is cut off, and the remaining plastic sheet is pulled to move a new plastic sheet to the bottom of the vacuum forming tray for vacuum forming again.

[0003] The blister tray has a feed inlet on one side at the same level, but the feed inlet and the discharge outlet of the feeding mechanism cannot be adjusted according to the actual situation. As a result, the feed inlet and the discharge outlet cannot be at the same level, causing the plastic sheet to press against the edge of the feed inlet. The edge of the feed inlet is a 90-degree bend, which causes the edge of the feed inlet to pull the plastic sheet. When the discharge outlet is lower or higher than the feed inlet, creases will appear on the surface of the plastic sheet. As a result, the plastic sheet is prone to air leakage during blister forming, which makes the shape of the protective cover after blister forming not standard.

[0004] In response to the above situation, we propose a feeding device for forming blister trays. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a feeding device for forming blister trays.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A feeding device for forming a blister tray includes a feeding frame, a tensioning frame is provided on one side of the feeding frame, and a discharging frame is provided on the side of the tensioning frame away from the feeding frame. The discharging frame has symmetrically opened sliding grooves inside, and a moving block is slidably connected inside the sliding groove.

[0008] The inner wall of the chute is rotatably connected to a second lead screw, which passes through the moving block and is threadedly connected to the moving block.

[0009] The inner walls of the two sets of movable blocks are fixedly connected to a fixed frame, the inside of the fixed frame is slidably connected to a movable frame, the inner wall of the movable frame is rotatably connected to an adjusting roller, the top of the movable frame is rotatably connected to an adjusting screw, and the adjusting screw passes through the fixed frame and is threadedly connected to the fixed frame.

[0010] A positioning roller is provided below the adjusting roller. The positioning roller is rotatably connected to the inner wall of the moving block. A positioning plate is fixedly connected to the outer surface of the moving block on the side of the positioning roller away from the tensioning frame.

[0011] Preferably, the discharge rack is provided with a mounting groove extending through it below the chute. The bottom of the second lead screw extends through the discharge rack to the mounting groove and is fixedly connected to a third bevel gear at its end face. The bottom of the third bevel gear meshes with a fourth bevel gear. A connecting rod is fixedly connected between the two sets of fourth bevel gears. The connecting rod is rotatably connected to the discharge rack. One end of the connecting rod extends through the discharge rack and is fixedly connected to an adjustment handle at its end face.

[0012] Preferably, a servo motor is fixedly connected to the outer surface of the feeding rack, the output end of the servo motor passes through the feeding rack and is fixedly connected to the end face of the feeding rod, a moving groove is symmetrically opened inside the feeding rod, a limit plate is slidably connected inside the moving groove, and a handle is symmetrically fixedly connected to the outer surface of the limit plate.

[0013] Preferably, the limiting plate has symmetrically formed fixing grooves inside, the fixing grooves are slidably connected to fixing blocks, the fixing blocks are threadedly connected to a first lead screw, the end of the first lead screw away from the handle passes through the limiting plate and the end face is fixedly connected to a first bevel gear.

[0014] Preferably, the limiting plate is rotatably connected to a second bevel gear, the top of the second bevel gear meshes with two sets of first bevel gears, and the bottom of the second bevel gear penetrates the limiting plate and is fixedly connected to a fixed handle on its end face.

[0015] Preferably, the tensioning frame has symmetrical tensioning grooves inside, tensioning blocks are slidably connected inside the tensioning grooves, tensioning rollers are rotatably connected between two sets of tensioning blocks, tensioning springs are fixedly connected to the top of the tensioning blocks, and the top of the tensioning springs is fixedly connected to the inner wall of the tensioning grooves.

[0016] The present invention provides a feeding device for forming a blister tray, which has the following advantages: When installing the feeding device, the user can move the position of the discharge rack so that the top of the positioning plate is attached to the outer surface of the discharge port. Then, the user holds the adjustment handle and rotates it to move the position of the moving block. The moving block will drive the positioning roller to move, which in turn drives the positioning plate to move, so that the top of the positioning plate coincides with the bottom of the inlet. This makes the gap between the positioning roller and the adjustment roller parallel to the inlet, allowing the plastic sheet to pass through the inlet parallel. This prevents the edge of the inlet from pulling the plastic sheet, thus preventing creases from appearing on the plastic sheet as it passes through the inlet. This also prevents air leakage during the blister forming process, and further makes the shape of the blister formed plastic sheet more standard and beautiful. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the material discharge rack structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the limiting plate of this utility model.

[0020] In the diagram: 1. Feeding rack; 2. Servo motor; 3. Feeding rod; 4. Moving groove; 5. Limiting plate; 6. Handle; 7. Fixing groove; 8. Fixing block; 9. First lead screw; 10. First bevel gear; 11. Second bevel gear; 12. Fixing handle; 13. Tensioning frame; 14. Tensioning groove; 15. Tensioning block; 16. Tensioning spring; 17. Tensioning roller; 18. Discharge rack; 19. Slide groove; 20. Second lead screw; 21. Moving block; 22. Positioning roller; 23. Positioning plate; 24. Fixing frame; 25. Moving frame; 26. Adjusting roller; 27. Adjusting screw; 28. Mounting groove; 29. ​​Third bevel gear; 30. Fourth bevel gear; 31. Connecting rod; 32. Adjusting handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Referring to Figures 1-3, a feeding device for forming a blister tray includes a feeding rack 1. A tensioning frame 13 is provided on one side of the feeding rack 1, and a discharge rack 18 is provided on the side of the tensioning frame 13 away from the feeding rack 1. A servo motor 2 is fixedly connected to the outer surface of the feeding rack 1. The output end of the servo motor 2 passes through the feeding rack 1 and is fixedly connected to the end face of the feeding rod 3. A moving groove 4 is symmetrically opened inside the feeding rod 3. A limit plate 5 is slidably connected inside the moving groove 4. A handle is symmetrically fixedly connected to the outer surface of the limit plate 5. 6. The limiting plate 5 has symmetrically provided fixing grooves 7 inside. The fixing groove 7 is slidably connected to the fixing block 8. The fixing block 8 is threadedly connected to the first lead screw 9 inside. The end of the first lead screw 9 away from the handle 6 passes through the limiting plate 5 and is fixedly connected to the end face of the first bevel gear 10. The limiting plate 5 is rotatably connected to the second bevel gear 11. The top of the second bevel gear 11 meshes with two sets of first bevel gears 10. The bottom of the second bevel gear 11 passes through the limiting plate 5 and is fixedly connected to the end face of the fixing handle 12.

[0024] The tension frame 13 has symmetrical tension grooves 14 inside, and tension blocks 15 are slidably connected inside the tension grooves 14. Tension rollers 17 are rotatably connected between the two sets of tension blocks 15. Tension springs 16 are fixedly connected to the top of the tension blocks 15. The top of the tension springs 16 is fixedly connected to the inner wall of the tension grooves 14. The tension springs 16 can move dynamically, thereby achieving the purpose of controlling the tension of the plastic sheet surface.

[0025] The discharge rack 18 has symmetrically arranged grooves 19 inside, and a movable block 21 is slidably connected inside the groove 19. A second lead screw 20 is rotatably connected to the inner wall of the groove 19, and the second lead screw 20 passes through the movable block 21 and is threadedly connected to the movable block 21. A fixed frame 24 is fixedly connected to the inner wall of the two sets of movable blocks 21. A movable frame 25 is slidably connected inside the fixed frame 24. An adjusting roller 26 is rotatably connected to the inner wall of the movable frame 25. An adjusting screw 27 is rotatably connected to the top of the movable frame 25, and the adjusting screw 27 passes through the fixed frame 24 and is threadedly connected to the fixed frame 24. A positioning roller 22 is arranged below the adjusting roller 26, and the positioning roller 22 rotates. A positioning plate 23 is fixedly connected to the outer surface of the moving block 21 on the side of the positioning roller 22 away from the tension frame 13. The discharge rack 18 is located below the slide 19 and has a through mounting groove 28. The bottom of the second lead screw 20 extends through the discharge rack 18 to the mounting groove 28 and is fixedly connected to the end face of the third bevel gear 29. The bottom of the third bevel gear 29 is meshed with a fourth bevel gear 30. A connecting rod 31 is fixedly connected between the two sets of fourth bevel gears 30. The connecting rod 31 is rotatably connected to the discharge rack 18. One end of the connecting rod 31 extends through the discharge rack 18 and is fixedly connected to the end face of the adjusting handle 32.

[0026] In summary: In the application of this utility model, the user first removes the limiting plate 5 from the surface of the feeding rod 3, then the user attaches the plastic roll to the outer surface of the feeding rod 3. Next, the user removes the limiting plate 5 and reattaches it to the outer surface of the feeding rod 3. Then, the user moves the limiting plate 5 so that it clamps the plastic roll between the limiting plate 5 and the inner wall of the feeding rack 1. The user then holds the fixing handle 12 to rotate the first bevel gear 10. The rotation of the first bevel gear 10 drives the two sets of second bevel gears 11 to rotate, and the second bevel gears 11 drive the first lead screw 9 to rotate, thereby causing the fixing block 8 to move towards the inner surface of the feeding rod 3. The wall moves, causing the fixing block 8 and the limiting plate 5 to clamp the feeding rod 3, thereby fixing the position of the limiting plate 5 and further limiting the position of the plastic roll. Then, the user pulls the edge of the plastic roll surface and pulls it, causing the plastic sheet on the surface of the plastic roll to be pulled out. Then, the user pulls the plastic sheet through the tension roller 17. Then, the user rotates the adjusting screw 27 to drive the moving frame 25 upward, increasing the gap between the adjusting roller 26 and the positioning roller 22. Then, the user pulls the plastic sheet through the gap between the positioning roller 22 and the adjusting roller 26. Then, the user rotates the adjusting screw 27 to drive the positioning roller 22 downward. The movement causes the positioning roller 22 and adjusting roller 26 to clamp the plastic sheet. The user then pulls the plastic sheet through the inlet. The vacuum forming machine has an internal clamping mechanism to hold the edge of the plastic sheet. A vacuum forming mechanism is located between the clamping mechanism and the inlet. Positioning mechanisms for positioning the plastic sheet during vacuum forming are located on both sides of the vacuum forming mechanism. Therefore, after the plastic sheet passes through the inlet, it is pulled into the clamping mechanism, allowing the clamping mechanism to hold the plastic sheet. The user then first activates the positioning mechanism to position the plastic sheet, and then starts the vacuum forming machine to vacuum-form the plastic sheet into the desired shape. Afterwards, the positioning mechanism is activated. The plastic sheet can move at the bottom of the vacuum forming machine. Then, the user starts the clamping mechanism to move the plastic sheet, so that the new plastic sheet moves to the bottom of the vacuum forming machine. After that, the user starts the positioning mechanism to clamp the plastic sheet for vacuum forming. At the same time, the user starts the clamping mechanism to move along the plastic sheet, so that the clamping mechanism moves to the edge of the positioning mechanism and starts the cutting mechanism to cut and separate the vacuum-formed plastic sheet before storing it. Then, the above actions are repeated to vacuum form and store the plastic sheet. During vacuum forming, the parameters of the servo motor 2 need to be adjusted so that the servo motor 2 can work in conjunction with the operation of the vacuum forming machine.

[0027] When installing the feeding device, the user can move the position of the discharge rack 18 so that the top of the positioning plate 23 is attached to the outer surface of the discharge port. Then, the user holds the adjustment handle 32 and rotates it. The rotation of the adjustment handle 32 drives the two sets of fourth bevel gears 30 to rotate, which in turn drives the third bevel gear 29 to rotate. The rotation of the third bevel gear 29 drives the second lead screw 20 to rotate, which in turn drives the moving block 21 to move. The moving block 21 drives the positioning roller 22 to move, which in turn drives the positioning plate 23 to move, so that the top of the positioning plate 23 coincides with the bottom of the inlet. This makes the gap between the positioning roller 22 and the adjustment roller 26 parallel to the inlet, so that the plastic sheet can pass through the inlet parallel. This prevents the edge of the inlet from pulling the plastic sheet, thus preventing creases from appearing on the plastic sheet when it passes through the inlet. This also prevents air leakage during the plastic sheet vacuum forming process, and makes the plastic sheet more standard and beautiful after vacuum forming.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A feeding device for forming a blister tray, comprising a feeding rack (1), a tensioning frame (13) provided on one side of the feeding rack (1), and a discharging rack (18) provided on the side of the tensioning frame (13) away from the feeding rack (1), characterized in that, The discharge rack (18) has symmetrically opened grooves (19) inside, and a moving block (21) is slidably connected inside the groove (19); The inner wall of the slide (19) is rotatably connected to a second lead screw (20), which passes through the moving block (21) and is threadedly connected to the moving block (21). The inner walls of the two sets of movable blocks (21) are fixedly connected to a fixed frame (24), the inside of the fixed frame (24) is slidably connected to a movable frame (25), the inner wall of the movable frame (25) is rotatably connected to an adjusting roller (26), the top of the movable frame (25) is rotatably connected to an adjusting screw (27), and the adjusting screw (27) passes through the fixed frame (24) and is threadedly connected to the fixed frame (24); A positioning roller (22) is provided below the adjusting roller (26). The positioning roller (22) is rotatably connected to the inner wall of the moving block (21). A positioning plate (23) is fixedly connected to the outer surface of the moving block (21) on the side of the positioning roller (22) away from the tension frame (13).

2. The feeding device for blister tray forming according to claim 1, characterized in that, The discharge rack (18) is located below the slide groove (19) and has a through mounting groove (28). The bottom of the second lead screw (20) extends through the discharge rack (18) to the mounting groove (28) and is fixedly connected to the end face of a third bevel gear (29). The bottom of the third bevel gear (29) is meshed with a fourth bevel gear (30). A connecting rod (31) is fixedly connected between the two sets of the fourth bevel gears (30). The connecting rod (31) is rotatably connected to the discharge rack (18). One end of the connecting rod (31) extends through the discharge rack (18) and is fixedly connected to the end face of an adjusting handle (32).

3. The feeding device for blister tray forming according to claim 1, characterized in that, A servo motor (2) is fixedly connected to the outer surface of the feeding rack (1). The output end of the servo motor (2) passes through the feeding rack (1) and is fixedly connected to the end face of the feeding rod (3). A moving groove (4) is symmetrically opened inside the feeding rod (3). A limit plate (5) is slidably connected inside the moving groove (4). A handle (6) is symmetrically fixedly connected to the outer surface of the limit plate (5).

4. The feeding device for blister tray forming according to claim 3, characterized in that, The limiting plate (5) has symmetrically provided fixing grooves (7) inside. The fixing grooves (7) are slidably connected to fixing blocks (8). The fixing blocks (8) are threadedly connected to a first lead screw (9). The end of the first lead screw (9) away from the handle (6) passes through the limiting plate (5) and is fixedly connected to a first bevel gear (10) on its end face.

5. The feeding device for blister tray forming according to claim 4, characterized in that, The limiting plate (5) is rotatably connected to a second bevel gear (11). The top of the second bevel gear (11) meshes with two sets of first bevel gears (10). The bottom of the second bevel gear (11) passes through the limiting plate (5) and is fixedly connected to a fixed handle (12) on its end face.

6. The feeding device for blister tray forming according to claim 1, characterized in that, The tensioning frame (13) has symmetrical tensioning grooves (14) inside. Tensioning blocks (15) are slidably connected inside the tensioning grooves (14). Tensioning rollers (17) are rotatably connected between the two sets of tensioning blocks (15). Tensioning springs (16) are fixedly connected to the top of the tensioning blocks (15). The top of the tensioning springs (16) is fixedly connected to the inner wall of the tensioning grooves (14).

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