Shearing device for heat-shrinkable bag

Abstract

The utility model discloses a shearing device for heat shrink bags, which comprises a base, a cutting assembly, a feeding assembly, a bonding assembly and a supporting assembly, the cutting assembly, the feeding assembly and the supporting assembly are sequentially fixed at the top of the base from left to right, the bonding assembly is arranged on the supporting assembly, the cutting assembly comprises a first supporting frame, and the first supporting frame is provided with a second supporting frame. A first supporting frame, first air cylinders and a movable box are fixedly connected to the top of the base, the section of the bottom of the first supporting frame is in a C shape, the first air cylinders are arranged in the first supporting frame, the top of each first air cylinder is fixedly connected with a first connecting plate, and the lower portion of each first connecting plate is fixedly connected with a first connecting block and a blade. And the length of the first connecting blocks is larger than that of the blade, the two sets of first connecting blocks are arranged, first electric heating wires are fixedly connected to the bottoms of the first connecting blocks, and the movable box is located under the first supporting frame.

Description

Technical Field

[0001] The utility model belongs to the technical direction of cutting devices, and specifically relates to a shearing device for heat shrink bags. Background Art

[0002] Heat shrinkable material, also known as polymer shape memory material, is an intelligent material that combines polymer material with radiation processing technology. The material that has expanded and cooled to shape can shrink back to its original shape after being heated to achieve a heat shrinkage effect. Currently, heat shrinkable film and heat shrinkable bags are more common on the market. They can be used to package food and reduce oxygen in the package to increase the shelf life.

[0003] Heat shrink bags are secondary products of heat shrink films, that is, heat shrink bags are usually made of heat shrink films. Existing heat shrink bag production equipment has high costs and low efficiency, which in turn increases the price of heat shrink bags, making heat shrink bags unable to be widely used. Therefore, there is a need for a device that can easily make heat shrink films into heat shrink bags, which can improve the processing and production efficiency of heat shrink bags. Utility Model Content

[0004] The utility model aims to provide a shearing device for heat shrink bags in view of the existing device, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a shearing device for heat shrink bags, comprising a base, a cutting assembly, a feeding assembly, a bonding assembly and a supporting assembly, wherein the cutting assembly, the feeding assembly and the supporting assembly are fixed to the top of the base from left to right in sequence, and the bonding assembly is arranged on the supporting assembly, the cutting assembly comprises a supporting frame 1, the top of the base is fixedly connected with a supporting frame 1, a cylinder 1 and a movable box, the bottom cross-section of the supporting frame 1 is C-shaped, the cylinder 1 is arranged in the supporting frame 1, the cylinder 1 is provided with two groups, the top of the cylinder 1 is fixedly connected with a connecting plate 1, the lower part of the connecting plate is fixedly connected with a connecting block 1 and a blade, the length of the connecting block 1 is greater than the length of the blade, the connecting block 1 is provided with two groups, the bottom of the connecting block 1 is fixedly connected with an electric heating wire 1, the movable box is located directly below the supporting frame 1, the top of the movable box is provided with three openings, a spring 1 is fixedly connected inside the movable box, the top of the spring 1 is fixedly connected with a copper plate 1, and the center of the copper plate 1 is provided with a through groove.

[0006] The utility model further illustrates that the feeding assembly includes a second support frame, and the second support frame is provided with two groups, which are fixedly connected to the top of the base. A bearing seat is provided inside the second support frame, and two groups of bearing seats are provided. The bearing of the bearing seat is connected to a feeding roller, and a gear is fixedly connected to the left side of the feeding roller through the bearing seat. The gears on the two groups of feeding rollers are meshed with each other, and a fixing plate is fixedly connected to the side of the base, and a motor is fixedly connected to the top of the fixing plate, and the output shaft of the motor is fixedly connected to the left end of the feeding roller located below.

[0007] The utility model further illustrates that a screw rod is threadedly connected to the top of the second support frame, the bottom of the screw rod is connected to the bearing of the bearing seat located above, and the top of the screw rod is fixedly connected to a handle.

[0008] The utility model further describes that the support assembly includes a support plate and a support block, and the support plates are provided in two groups. The support plates and the support blocks are fixedly connected to the top of the base, and the two groups of support plates are fixedly connected to sliding rods on opposite sides, and the sliding rods are provided in two groups. Auxiliary rollers are connected to bearings on opposite sides of the two groups of support plates, and the auxiliary rollers are provided in two groups.

[0009] The utility model further illustrates that the bonding assembly includes a movable sleeve, the movable sleeve is arranged on two groups of sliding rods, the movable sleeve is arranged in two groups, a through groove is opened on the middle side of the movable sleeve, the top of the movable sleeve is fixedly connected to the second cylinder, the top of the second cylinder is fixedly connected to the second connecting plate, the bottom of the second connecting plate is fixedly connected to the second connecting block, the bottom of the second connecting block is opened with a groove, the inside of the groove is provided with the second heating wire and the roller, the second heating wire is fixedly connected to the second connecting block, and the roller is connected to the bearing of the second connecting block;

[0010] The movable sleeve is threadedly connected with bolts.

[0011] The utility model further illustrates that a placement groove is provided on the top of the support block, a second spring is arranged inside the placement groove, the bottom of the second spring is fixedly connected to the support block, and a second copper plate is fixedly connected to the top of the second spring.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model, by providing a cutting component, a feeding component, a bonding component and a supporting component, can realize the processing of heat shrink bags of different sizes and improve the processing efficiency of heat shrink bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of the A area of ​​the utility model;

[0017] Figure 4 It is an enlarged schematic diagram of the B area of ​​the utility model;

[0018] In the figure: 1. base; 2. support frame 1; 3. cylinder 1; 4. connecting plate 1; 5. connecting block 1; 6. heating wire 1; 7. blade; 8. movable box; 9. spring 1; 10. copper plate 1; 11. support frame 2; 12. bearing seat; 13. feed roller; 14. gear; 15. fixing plate; 16. motor; 17. screw rod; 18. handle; 19. support plate; 20. support block; 21. slide rod; 22. movable sleeve; 23. bolt; 24. cylinder 2; 25. connecting plate 2; 26. connecting block 2; 27. heating wire 2; 28. roller; 29. ​​spring 2; 30. copper plate 2; 31. auxiliary roller. DETAILED DESCRIPTION

[0019] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4The utility model provides a technical solution: a shearing device for heat shrink bags, comprising a base 1, a cutting assembly, a feeding assembly, a bonding assembly and a supporting assembly. The cutting assembly, the feeding assembly and the supporting assembly are fixed on the top of the base 1 from left to right in sequence. The bonding assembly is arranged on the supporting assembly. The cutting assembly comprises a supporting frame 2. The top of the base 1 is fixedly connected with a supporting frame 2, a cylinder 3 and a movable box 8. The bottom cross-section of the supporting frame 2 is C-shaped. The cylinder 3 is arranged in the supporting frame 2. The cylinder 3 is provided with two groups. The top of the cylinder 3 is fixedly connected with a connecting plate 4. The lower part of the connecting plate 4 is fixedly connected with a connecting block 5 and a blade 7. The length of the connecting block 5 is greater than the length of the blade 7. The connecting block 5 is provided with two groups. The bottom of the connecting block 5 is fixedly connected with an electric heating wire 6. The movable box 8 is located directly below the supporting frame 2. The top of the movable box 8 is provided with three openings, which are respectively located at the two groups of connecting Directly below the connecting block 5 and the blade 7, a spring 9 is fixedly connected inside the movable box 8, and several groups of springs 9 are provided. A copper plate 10 is fixedly connected to the top of the spring 9. A through groove is provided in the center of the copper plate 10, which is located directly below the blade 7. Bumps are fixed on both sides of the top of the copper plate 10. When cutting is required, the heat shrink film passes through the top of the movable box 8, and the cylinder 3 contracts, driving the connecting plate 4 to descend, driving the connecting block 5 and the blade 7 to descend. Since the length of the connecting block 5 is greater than the length of the blade 7, the heated electric heating wire 6 will first contact the heat shrink film and press the copper plate 10 downward. At this time, under the action of the electric heating wire 6 and the copper plate 10, the two layers of heat shrink film are bonded, and at the same time, the blade 7 descends through the opening between the movable box 8 and the copper plate 10 to cut the bonded heat shrink bag. After cutting, the cylinder 3 extends, driving the connecting plate 4, the connecting block 5 and the blade 7 to rise.

[0021] The feeding assembly includes a support frame 11, which is provided with two groups and fixedly connected to the top of the base 1. A bearing seat 12 is provided inside the support frame 11, and two groups of bearing seats 12 are provided. A feed roller 13 is connected to the bearing of the bearing seat 12. The left side of the feed roller 13 passes through the bearing seat 12 and is fixedly connected with a gear 14. The gears 14 on the two groups of feed rollers 13 are meshed with each other. A fixed plate 15 is fixedly connected to the side of the base 1, and a motor 16 is fixedly connected to the top of the fixed plate 15. The output shaft of the motor 16 is fixedly connected to the left end of the feed roller 13 located below. The heat shrink film passes between the two groups of feed rollers 13. The motor 16 starts to rotate counterclockwise, driving the lower feed roller 13 and the gear 14 to rotate counterclockwise. Since the two groups of gears 14 are meshed, the two groups of feed rollers 13 are driven to move toward each other, that is, the upper feed roller 13 is driven to rotate clockwise to transport the heat shrink film.

[0022] A screw rod 17 is threadedly connected to the top of the support frame 11, and the bottom of the screw rod 17 is connected to the bearing of the bearing seat 12 located above. A handle 18 is fixedly connected to the top of the screw rod 17. The handle 18 is rotated in the forward direction to drive the screw rod 17 to rotate forward, so that the screw rod 17 moves upward, driving the upper bearing seat 12 to move upward, thereby driving the upper feed roller 13 to move upward, increasing the spacing between the two groups of feed rollers 13. Conversely, the upper feed roller 13 is driven to move downward, reducing the spacing between the two groups of feed rollers 13, thereby achieving the purpose of adjusting the spacing between the two groups of feed rollers 13.

[0023] The support assembly includes a support plate 19 and a support block 20. Two groups of support plates 19 are provided. The support plates 19 and the support blocks 20 are fixedly connected to the top of the base 1. The two groups of support plates 19 are fixedly connected to the sliding rods 21 on the opposite sides. Two groups of sliding rods 21 are provided. Auxiliary rollers 31 are connected to the bearings on the opposite sides of the two groups of support plates 19. Two groups of auxiliary rollers 31 are provided, which are symmetrical about the plane where the top of the support block 20 is located. There are three auxiliary rollers 31 in each group. A bracket is placed on the right side of the device, and two rolls of heat shrink film are placed on the bracket. The heat shrink film passes through the inside, outside, and inside of the two groups of auxiliary rollers 31 from right to left in sequence, and then passes through between the support block 20 and the sliding rod 21.

[0024] The bonding component includes a movable sleeve 22, which is sleeved on two groups of sliding rods 21. There are two groups of movable sleeves 22. A through groove is opened on the middle side of the movable sleeve 22. A cylinder 24 is fixedly connected to the top of the movable sleeve 22. The cylinder 24 is arranged on both sides of the through groove. A connecting plate 25 is fixedly connected to the top of the cylinder 24. A connecting block 26 is fixedly connected to the bottom of the connecting plate 25. A groove is opened at the bottom of the connecting block 26. A heating wire 27 and a roller 28 are arranged inside the groove. The heating wire 27 is fixedly connected to the connecting block 26, and the roller 28 is connected to the bearing of the connecting block 26.

[0025] A placement groove is provided on the top of the support block 20, and a spring 29 is arranged inside the placement groove. The spring 29 is arranged in several groups. The bottom of the spring 29 is fixedly connected to the support block 20, and the top of the spring 29 is fixedly connected to a copper plate 230. The electric heating wire 27 is heated to heat the roller 28. When the heat shrink film needs to be bonded, the cylinder 24 contracts, driving the connecting plate 25 and the connecting block 26 to descend, thereby driving the roller 28 to descend, and the roller 28 rolls over the heat shrink film passing between the support block 20 and the slide bar 21, and presses the copper plate 230 downward. At this time, under the action of the roller 28 and the copper plate 230, the two layers of heat shrink film are heat-bonded. When bonding or cutting by the cutting device is not required, the cylinder 24 extends, driving the connecting plate 25 and the connecting block 26 to rise, thereby driving the roller 28 to rise, so that the roller 28 does not contact the heat shrink film.

[0026] A protrusion is fixed at the bottom of the movable sleeve 22, and the protrusion is used to limit the position of the heat shrink film passing through. The movable sleeve 22 is threaded with a bolt 23. Tightening the bolt 23 can fix the position of the movable sleeve 22 on the slide rod 21. Loosening the bolt 23 can adjust the spacing between the movable sleeves 22, so as to adapt to the position of heat shrink films of different sizes.

[0027] Working principle: A bracket is placed on the right side of the device, and two rolls of heat shrink film are placed on the bracket. The heat shrink film passes through the inside, outside, and inside of the two sets of auxiliary rollers 31 from right to left, and then passes between the support block 20 and the slide bar 21, between the two sets of feed rollers 13, and the top of the movable box 8 in turn.

[0028] According to the actual processing size of the heat shrink bag, the distance between the two groups of movable sleeves 22 is adjusted by the bolt 23, and the heating of one group of heating wires 1 6 and the heating wires 2 27 on the two groups of movable sleeves 22 or the heating of two groups of heating wires 1 6 and the heating wires 2 27 on one group of movable sleeves 22 can be controlled. It is also possible to control the cylinder 2 24 on the movable sleeve 22 on the side of the heating wire 2 27 that does not need to be heated to be in an extended state.

[0029] The control motor 16 is started, driving the feeding roller 13 to rotate, feeding the two layers of heat shrinkable film, and the cylinder 24 contracts, driving the connecting plate 25 and the connecting block 26 to descend, driving the roller 28 to descend, and the roller 28 rolls on the two layers of heat shrinkable film and presses the copper plate 230 downward. The two layers of heat shrinkable film are heat-bonded under the action of the heated roller 28 and the copper plate 230; when cutting is required, the motor 16 stops rotating and the feeding stops, and at the same time, the cylinder 24 extends and the cylinder 3 contracts. The extension of the cylinder 24 drives the connecting plate 25 and the connecting block 26 to rise, thereby driving the roller 28 to rise, so that the roller 28 does not contact the heat shrinkable film; the cylinder The shrink cylinder 3 shrinks, driving the connecting plate 4 to descend, driving the connecting block 5 and the blade 7 to descend. Since the length of the connecting block 5 is greater than the length of the blade 7, the heated heating wire 6 will first contact the heat shrink film and press the copper plate 10 downward. Under the action of the heating wire 6 and the copper plate 10, the two layers of heat shrink film are bonded. At the same time, the blade 7 descends through the opening between the movable box 8 and the copper plate 10 to cut the bonded heat shrink film to form a heat shrink bag. After cutting, the cylinder 3 extends, the motor 16 starts, and the cylinder 24 extends to realize the processing of heat shrink bags of different sizes and improve the processing efficiency of heat shrink bags.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A shearing device for heat shrink bags, comprising a base (1), a cutting assembly, a feeding assembly, a bonding assembly and a supporting assembly, characterized in that: The cutting assembly, the feeding assembly and the supporting assembly are fixed to the top of the base (1) in sequence from left to right, the bonding assembly is arranged on the supporting assembly, the cutting assembly comprises a supporting frame (2), the top of the base (1) is fixedly connected with a supporting frame (2), a cylinder (3) and a movable box (8), the bottom cross-section of the supporting frame (2) is C-shaped, the cylinder (3) is arranged in the supporting frame (2), the cylinder (3) is provided with two groups, the top of the cylinder (3) is fixedly connected with a connecting plate (4), the bottom of the connecting plate (4) is A connecting block (5) and a blade (7) are fixedly connected at the bottom, the length of the connecting block (5) is greater than the length of the blade (7), the connecting block (5) is provided with two groups, the bottom of the connecting block (5) is fixedly connected with an electric heating wire (6), the movable box (8) is located directly below the supporting frame (2), the top of the movable box (8) is provided with three openings, the inside of the movable box (8) is fixedly connected with a spring (9), the top of the spring (9) is fixedly connected with a copper plate (10), and the center of the copper plate (10) is provided with a through groove.

2. A shearing device for heat shrink bags according to claim 1, characterized in that: The feeding assembly comprises a second support frame (11), wherein the second support frame (11) is provided with two groups, and the second support frame (11) is fixedly connected to the top of the base (1). A bearing seat (12) is provided inside the second support frame (11), and the bearing seat (12) is provided with two groups. The bearing of the bearing seat (12) is connected to a feeding roller (13), and the left side of the feeding roller (13) passes through the bearing seat (12) and is fixedly connected to a gear (14), and the gears (14) on the two groups of the feeding rollers (13) are meshed with each other. A fixing plate (15) is fixedly connected to the side of the base (1), and a motor (16) is fixedly connected to the top of the fixing plate (15), and the output shaft of the motor (16) is fixedly connected to the left end of the feeding roller (13) located below.

3. A shearing device for heat shrink bags according to claim 2, characterized in that: The top of the second support frame (11) is threadedly connected with a screw rod (17), the bottom of the screw rod (17) is connected to the bearing of the bearing seat (12) located above, and the top of the screw rod (17) is fixedly connected with a handle (18).

4. A shearing device for heat shrink bags according to claim 3, characterized in that: The support assembly comprises a support plate (19) and a support block (20), wherein two groups of the support plates (19) are provided, wherein the support plates (19) and the support blocks (20) are fixedly connected to the top of the base (1), wherein the two groups of the support plates (19) are fixedly connected to a slide bar (21) on opposite sides, wherein two groups of the slide bar (21) are provided, wherein the two groups of the support plates (19) are bearing-connected to auxiliary rollers (31) on opposite sides, wherein two groups of the auxiliary rollers (31) are provided.

5. A shearing device for heat shrink bags according to claim 4, characterized in that: The bonding assembly comprises a movable sleeve (22), the movable sleeve (22) being sleeved on two groups of sliding rods (21), the movable sleeve (22) being provided with two groups, a through groove being provided on the middle side of the movable sleeve (22), the top of the movable sleeve (22) being fixedly connected to a second cylinder (24), the top of the second cylinder (24) being fixedly connected to a second connecting plate (25), the bottom of the second connecting plate (25) being fixedly connected to a second connecting block (26), the bottom of the second connecting block (26) being provided with a groove, the inside of the groove being provided with a second electric heating wire (27) and a roller (28), the second electric heating wire (27) being fixedly connected to the second connecting block (26), the roller (28) being connected to the bearing of the second connecting block (26); The movable sleeve (22) is threadedly connected with a bolt (23).

6. A shearing device for heat shrink bags according to claim 5, characterized in that: The support block (20) has a placement groove at the top, a spring (29) is arranged inside the placement groove, the bottom of the spring (29) is fixedly connected to the support block (20), and the top of the spring (29) is fixedly connected to a copper plate (30).

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