Automatic deviation correcting and punching device of bag making machine

By designing an automatic alignment and punching device on the bag making machine, and using the offset detection component and the driving component to adjust the distance of the sliding frame, the automatic alignment and precise punching of the packaging bag are achieved. This solves the problems of low efficiency and punching misalignment in the existing technology, and improves production efficiency and product quality.

CN224545482UActive Publication Date: 2026-07-24HUBEI ANTANG FLEXIBLE PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI ANTANG FLEXIBLE PACKAGING CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing bag-making machine's punching device requires manual alignment, resulting in low production efficiency and a tendency to punch off-center, affecting product appearance and increasing production costs.

Method used

Design an automatic alignment and punching device that includes a frame, a material conveying device, an alignment mechanism, and a punching structure. By adjusting the distance between the sliding frames through the deviation detection component and the driving component, the automatic alignment and precise punching of the packaging bags can be achieved.

Benefits of technology

It improves punching accuracy and processing efficiency, ensures accurate punching positions on packaging bags, and enhances the bag-making quality of the bag-making machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to packing bag punching technical field discloses a kind of automatic deviation rectification punching device of bag making machine, including rack, the top of rack is provided with material conveying device, deviation rectification mechanism and punching structure, the deviation rectification mechanism includes deviation detection piece and symmetrically arranged slide frame in the front and back two sides of rack, the opposite side of two the slide frame top is fixedly installed with deviation rectification plate in the upper end surface of material conveying device, the inside of rack is also provided with the driving element of adjusting two deviation rectification spacings.The utility model has following advantages and effects: it can be aligned punching automatically, and punching precision is high, and processing efficiency is high.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag punching technology, and in particular to an automatic correction punching device for a bag making machine. Background Technology

[0002] A bag-making machine is a machine that produces various plastic or other material packaging bags. Its processing range includes packaging bags of various sizes, thicknesses, and specifications made of plastic or other materials, with plastic packaging bags being the main product.

[0003] Currently, bag-making machines typically use manual alignment for punching hanging or tear holes. This is not only inefficient but also prone to misalignment, resulting in unattractive, low-quality products, wasted materials, and increased production costs. There is a need to design a punching device with automatic correction functionality, enabling precise positioning of the punching components, preventing misalignment, and improving the bag-making quality of the machine. Utility Model Content

[0004] The purpose of this invention is to provide an automatic correction and punching device for a bag making machine, which has the advantages of automatic alignment and punching, high punching accuracy, and high processing efficiency.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an automatic correction and punching device for a bag making machine, comprising a frame, a material conveying device, a correction mechanism and a punching structure provided on the top of the frame, the correction mechanism comprising a deviation detection component and sliding frames symmetrically arranged on the front and rear sides of the frame, a correction plate located on the upper surface of the material conveying device being fixedly installed on the opposite side of the top of each of the two sliding frames, and a driving component for adjusting the distance between the two correction plates being provided on the inner side of the frame.

[0006] By adopting the above technical solution, the packaging bag is placed on the material conveying device and conveyed to the right perforation structure position. The deviation detection component is used to detect whether the packaging bag is misaligned. When a misalignment problem occurs, the driving component controls the sliding frames on both sides to move closer to each other, so that the two correction plates move towards the sides of the packaging bag to straighten it and correct its position. Then it is sent to the perforation structure for perforation, which makes the perforation accuracy higher.

[0007] A further feature of this invention is that the driving component includes a baffle fixed to the inner side of the frame, a first motor is mounted on the baffle, a driving plate is mounted on the output end of the first motor, and push plates for pushing the sliding frame to move are rotatably mounted at both ends of the driving plate.

[0008] By adopting the above technical solution, the first motor controls the rotation of the drive plate, and the push plates on both sides pull the two sliding frames to slide relative to each other, thereby adjusting the distance between the two baffles and correcting the packaging bag.

[0009] A further feature of this invention is that a connecting plate is fixedly installed at the bottom of the sliding frame, the connecting plate is rotatably connected to the push plate, and two guide rods that are slidably adapted to both ends of the connecting plate are installed on the inner side of the frame.

[0010] By adopting the above technical solution, the sliding cooperation between the connecting plate and the guide rod makes the sliding frame on both sides slide more smoothly, thereby stably correcting the packaging bag.

[0011] A further feature of this invention is that the offset detection component includes a fixed frame installed on the top left side of the frame, and two infrared detection heads symmetrically arranged front and rear and a lead screw for adjusting the distance between the two infrared detection heads are installed on the fixed frame.

[0012] By adopting the above technical solution, the distance between the two infrared monitoring heads is adjusted by the lead screw to correspond to the width of the two sides of the packaging bag, thereby enabling the detection and correction of packaging bags of different specifications.

[0013] A further feature of this invention is that the lead screw component includes a second motor mounted on a fixed frame, a bidirectional lead screw is mounted on the output end of the second motor, a limit rod is also provided on the inner side of the fixed frame, and the infrared detection head is threadedly connected to the bidirectional lead screw and slidably connected to the limit rod.

[0014] By adopting the above technical solution, the second motor drives the bidirectional lead screw to rotate, and under the sliding guide of the limiting rod, the distance between the infrared detection heads on both sides is adjusted, thereby realizing the detection of the deviation of the packaging bag.

[0015] A further feature of this invention is that the material conveying device includes three drive rods installed inside the frame, and a drive motor connected to one of the drive rods is also installed on one side of the frame. Two material conveyor belts symmetrically connected front and rear are driven between the three drive rods.

[0016] By adopting the above technical solution, a drive rod is rotated by a drive motor, which makes the material conveyor belts on both sides run. The two sides of the packaging bag are placed on the two material conveyor belts respectively, and the middle part is suspended in the air, so that the conveyor belts will not be damaged during subsequent punching.

[0017] A further feature of this invention is that the punching structure includes a connecting frame installed on the top right side of the frame, an electric push rod is fixedly installed at the upper end of the connecting frame, a punching cutter is installed at the output end of the electric push rod, and an elastic support member corresponding to the position of the punching cutter is also installed on the inner side of the frame.

[0018] By adopting the above technical solution, when the packaging bag moves directly below the punching cutter, the elastic support can support the punching position, and the punching cutter can be driven to move down by the electric push rod, thereby enabling the packaging bag to be punched.

[0019] A further feature of this invention is that the elastic support includes a fixed seat mounted on a baffle, a T-shaped support seat slidably disposed on the fixed seat, a limiting baffle located in the inner cavity of the fixed seat fixedly mounted at the bottom end of the T-shaped support seat, and a plurality of springs mounted at the bottom of the limiting baffle.

[0020] By adopting the above technical solution, the spring pushes the limit baffle upward by extending and retracting, so that the T-shaped support pushes the packaging bag, which plays a certain buffering role when punching holes, thus enabling more accurate punching of the packaging bag.

[0021] The beneficial effects of this utility model are: 1. This utility model uses a lead screw to adjust the distance between two infrared monitoring heads so that it corresponds to the width of the two sides of the packaging bag, thereby detecting the deviation of the packaging bag. The first motor controls the rotation of the drive plate, and the push plates on both sides pull the two sliding frames to slide relative to each other, thereby adjusting the distance between the two baffles and correcting the deviation of the packaging bag, so as to make the punching accuracy of the packaging bag higher.

[0022] 2. In this utility model, when the packaging bag moves directly below the punching cutter, the punching cutter is driven to move downward by the electric push rod to punch holes in the packaging bag. The spring rebounds by extending and retracting, pushing the limit baffle upward, so that the T-shaped support pushes the packaging bag, which plays a certain buffering role during punching, thereby enabling more accurate punching of the packaging bag. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an overall structural diagram of an automatic correction and punching device for a bag making machine according to this utility model.

[0025] Figure 2 This is a utility model Figure 1 Structural diagram of the central correction mechanism.

[0026] Figure 3 This is a utility model Figure 1 Structural diagram of the center offset detection component.

[0027] Figure 4 This is a utility model Figure 1 Structural diagram of the perforated structure.

[0028] In the diagram: 1. Frame; 2. Material conveying device; 21. Drive rod; 22. Drive motor; 23. Material conveyor belt; 3. Correction mechanism; 31. Sliding frame; 32. Correction plate; 33. Baffle; 34. First motor; 35. Drive plate; 36. Push plate; 37. Connecting plate; 38. Guide rod; 39. Fixed frame; 310. Infrared detection head; 311. Second motor; 312. Bidirectional lead screw; 313. Limiting rod; 4. Drilling structure; 41. Connecting frame; 42. Electric push rod; 43. Drilling cutter; 44. Fixed seat; 45. T-shaped support seat; 46. Limiting baffle; 47. Spring. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] like Figures 1-4 As shown, an automatic deviation correction and punching device for a bag making machine includes a frame 1. The top of the frame 1 is provided with a material conveying device 2, a deviation correction mechanism 3, and a punching structure 4. The deviation correction mechanism 3 includes a deviation detection component and sliding frames 31 symmetrically arranged on the front and rear sides of the frame 1. A deviation correction plate 32 located on the upper surface of the material conveying device 2 is fixedly installed on the opposite side of the top of the two sliding frames 31. A driving component for adjusting the distance between the two deviation correction plates 32 is also provided on the inner side of the frame 1.

[0031] Furthermore, the driving component includes a baffle 33 fixed to the inner side of the frame 1, a first motor 34 is mounted on the baffle 33, a driving plate 35 is mounted on the output end of the first motor 34, and push plates 36 that push the sliding frame 31 to move are rotatably arranged at both ends of the driving plate 35.

[0032] Furthermore, a connecting plate 37 is fixedly installed at the bottom of the sliding frame 31. The connecting plate 37 is rotatably connected to the push plate 36. Two guide rods 38 are installed on the inner side of the frame 1, which are slidably adapted to the two ends of the connecting plate 37.

[0033] Furthermore, the offset detection component includes a fixed frame 39 installed on the top left side of the frame 1. The fixed frame 39 is equipped with two infrared detection heads 310 symmetrically arranged front and rear and a lead screw for adjusting the distance between the two infrared detection heads 310.

[0034] Furthermore, the lead screw component includes a second motor 311 mounted on a fixed frame 39, a bidirectional lead screw 312 mounted on the output end of the second motor 311, a limit rod 313 provided on the inner side of the fixed frame 39, and the infrared detection head 310 is threadedly connected to the bidirectional lead screw 312 and slidably connected to the limit rod 313.

[0035] Furthermore, the material conveying device 2 includes three drive rods 21 installed inside the frame 1. A drive motor 22 connected to one drive rod 21 is also installed on one side of the frame 1. Two material conveyor belts 23 are symmetrically connected between the three drive rods 21.

[0036] Furthermore, the punching structure 4 includes a connecting frame 41 installed on the top right side of the frame 1. An electric push rod 42 is fixedly installed on the upper end of the connecting frame 41. A punching cutter 43 is installed on the output end of the electric push rod 42. An elastic support member corresponding to the position of the punching cutter 43 is also installed on the inner side of the frame 1.

[0037] Furthermore, the elastic support includes a fixed seat 44 mounted on the baffle 33, a T-shaped support seat 45 slidably disposed on the fixed seat 44, a limiting baffle 46 located in the inner cavity of the fixed seat 44 fixedly mounted at the bottom end of the T-shaped support seat 45, and a plurality of springs 47 mounted at the bottom of the limiting baffle 46.

[0038] The working principle of this utility model is as follows: The packaging bag is placed on the material conveying device 2 and conveyed to the right. The distance between the two infrared monitoring heads 310 is adjusted by the lead screw to correspond to the width of the two sides of the packaging bag, and the packaging bag is deviated. The first motor 34 controls the drive plate 35 to rotate, and the push plates 36 on both sides pull the two sliding frames 31 to slide relative to each other, thereby adjusting the distance between the two baffles 32 and correcting the deviation of the packaging bag. When the packaging bag moves to the position directly below the punching cutter 43, the electric push rod 42 drives the punching cutter 43 to move down and punch holes in the packaging bag.

Claims

1. An automatic correction and punching device for a bag making machine, comprising a frame (1), characterized in that: The top of the frame (1) is provided with a material conveying device (2), a correction mechanism (3) and a perforation structure (4). The correction mechanism (3) includes a deviation detection component and sliding frames (31) symmetrically arranged on the front and rear sides of the frame (1). On the opposite side of the top of the two sliding frames (31), a correction plate (32) located on the upper surface of the material conveying device (2) is fixedly installed. The inner side of the frame (1) is also provided with a drive component for adjusting the distance between the two correction plates (32).

2. The automatic correction and punching device for a bag making machine according to claim 1, characterized in that: The driving component includes a baffle (33) fixed to the inside of the frame (1), a first motor (34) is mounted on the baffle (33), a driving plate (35) is mounted on the output end of the first motor (34), and push plates (36) that push the sliding frame (31) to move are rotatably provided at both ends of the driving plate (35).

3. The automatic correction and punching device for a bag making machine according to claim 2, characterized in that: A connecting plate (37) is fixedly installed at the bottom of the sliding frame (31). The connecting plate (37) is rotatably connected to the push plate (36). Two guide rods (38) are installed on the inner side of the frame (1) and are slidably adapted to the two ends of the connecting plate (37).

4. The automatic correction and punching device for a bag making machine according to claim 3, characterized in that: The offset detection device includes a fixed frame (39) installed on the top left side of the frame (1). The fixed frame (39) is equipped with two infrared detection heads (310) symmetrically arranged in front and behind and a lead screw for adjusting the distance between the two infrared detection heads (310).

5. The automatic correction and punching device for a bag making machine according to claim 4, characterized in that: The lead screw component includes a second motor (311) mounted on a fixed frame (39), a bidirectional lead screw (312) mounted on the output end of the second motor (311), and a limit rod (313) provided on the inner side of the fixed frame (39). The infrared detection head (310) is threadedly connected to the bidirectional lead screw (312) and slidably connected to the limit rod (313).

6. The automatic correction and punching device for a bag making machine according to claim 1, characterized in that: The material conveying device (2) includes three drive rods (21) installed inside the frame (1). A drive motor (22) connected to one drive rod (21) is also installed on one side of the frame (1). Two material conveying belts (23) are symmetrically connected between the three drive rods (21).

7. The automatic correction and punching device for a bag making machine according to claim 2, characterized in that: The punching structure (4) includes a connecting frame (41) installed on the top right side of the frame (1). An electric push rod (42) is fixedly installed on the upper end of the connecting frame (41). A punching cutter (43) is installed at the output end of the electric push rod (42). An elastic support corresponding to the position of the punching cutter (43) is also installed on the inner side of the frame (1).

8. The automatic correction and punching device for a bag making machine according to claim 7, characterized in that: The elastic support includes a fixed seat (44) mounted on the baffle (33), a T-shaped support seat (45) slidably disposed on the fixed seat (44), a limiting baffle (46) located in the inner cavity of the fixed seat (44) is fixedly installed at the bottom end of the T-shaped support seat (45), and a plurality of springs (47) are installed at the bottom of the limiting baffle (46).