A punching mechanism for a valen box rope threading machine

Abstract

This utility model discloses a punching mechanism for a walnut box threading machine. Key technical features include a frame with a mounting plate on it. Below the mounting plate are a pair of punching units and a width adjustment mechanism for driving the punching units to move. The width adjustment mechanism moves the pair of punching units closer together or further apart. This utility model allows for flexible adjustment of the width spacing of the punching units to accommodate walnut boxes of different sizes, making it convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of rope threading machine technology, and more specifically to a punching mechanism for a valen box rope threading machine. Background Technology

[0002] A valence box is a type of packaging box used to package various products. For easy handling, a drawstring is threaded through the valence box, allowing it to be carried by the drawstring. Currently, there are drawstring machines on the market that can process paper bags. These machines are equipped with a punching mechanism to perforate the paper bags. For example, CN218660739U discloses a punching device for a drawstring machine. Because the paper bags are flexible, the opening distance at both ends is relatively flexible, and the opening distance can be adapted to the punching device regardless of the bag's size.

[0003] However, valence boxes are generally made of rigid cardboard. When valence boxes of different sizes are opened, the width distance between the two ends of the valence box is different. Therefore, a punching device is needed to match the width distance between the two ends of the valence box after it is opened. However, the existing punching device is not easy to adjust and is difficult to adapt to different sizes of valence boxes. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a punching mechanism for a walnut box rope threading machine, which can flexibly adjust the width and spacing of the punching units to adapt to walnut boxes of different specifications, and is convenient to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a punching mechanism for a valen box rope threading machine, comprising a frame, an mounting plate on the frame, a pair of punching units and a width adjustment mechanism for driving the punching units to move below the mounting plate, wherein the width adjustment mechanism drives the pair of punching units to move away from or towards each other.

[0006] The present invention is further configured such that: the width adjustment mechanism includes a first lead screw, a first servo motor and a slide rail, the slide rail is fixedly disposed below the mounting plate, the punching unit is provided with a slider and a connecting seat, the slider is connected to the slide rail, and the connecting seat is connected to the first lead screw.

[0007] The present invention is further configured such that the threads at both ends of the first lead screw are arranged in opposite directions, and the connecting seats of the pair of drilling units are respectively connected to the two ends of the first lead screw with opposite spiral directions.

[0008] The present invention is further configured such that: a lifting plate is provided above the mounting plate, the lifting plate is slidably connected to the frame, and a lifting mechanism is provided on the frame, the lifting mechanism driving the lifting plate to move up and down.

[0009] The present invention is further configured such that: the lifting mechanism includes a rack mounted on the lifting plate and a third servo motor mounted on the frame, wherein the output end of the third servo motor is connected to a gear and connected to the rack.

[0010] The present invention is further configured such that each of the punching units includes two punching arms and a hole spacing adjustment mechanism, and the hole spacing adjustment mechanism enables the spacing between the two punching arms to be adjusted.

[0011] The present invention is further configured such that: the hole spacing adjustment mechanism includes a second servo motor and a second lead screw connected to the second servo motor, the threads at both ends of the second lead screw have opposite directions, and two drilling arms are respectively connected to the two ends of the second lead screw with opposite directions of thread.

[0012] The present invention is further configured such that: the punching arm has a gap for the end face of the valence box to pass through, and a punch rod that can pass through the gap is provided on one side of the gap.

[0013] In summary, this utility model has the following beneficial effects:

[0014] Compared with the prior art, this utility model uses a width adjustment mechanism to drive a pair of punching units to automatically adjust the spacing in the width direction, thereby flexibly adapting to different sizes of walnut boxes and making them convenient to use.

[0015] Furthermore, this invention is equipped with a lifting mechanism and a hole spacing adjustment mechanism. The lifting mechanism enables automatic height adjustment, and the hole spacing adjustment mechanism enables automatic adjustment of the hole spacing. Thus, this invention can achieve automatic adjustment of the width, height, and hole spacing of both ends of the walnut box. When changing the walnut box, the equipment can automatically change the plate without manual intervention, greatly saving the time required for plate changing and improving overall work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the drilling mechanism.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure at the first lead screw of the width adjustment mechanism.

[0018] Figure 3 This is a schematic diagram of the hole spacing adjustment mechanism.

[0019] Figure 4 This is a schematic diagram of the internal structure of the lifting mechanism.

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure at the gap and punch.

[0021] Figure 6 This is a schematic diagram of the Warren box structure.

[0022] Reference numerals: 1. Frame; 2. Mounting plate; 3. Drilling unit; 31. Slider; 32. Connecting seat; 33. Drilling arm; 34. Hole spacing adjustment mechanism; 341. Second servo motor; 342. Second lead screw; 4. Width adjustment mechanism; 41. First lead screw; 42. First servo motor; 43. Slide rail; 5. Lifting plate; 6. Lifting mechanism; 61. Rack; 62. Third servo motor; 7. Clearance; 8. Punch rod; 801. Punch rod cylinder; 9. Valen box. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] This embodiment discloses a punching mechanism for a walnut box threading machine, which is used to process walnut boxes. For clarity of the embodiment, please refer to [link to embodiment description]. Figure 6 This is a schematic diagram of the Valen box after it is opened. The diagram shows the width, height and hole spacing of the Valen box 9 targeted by the punching mechanism. It is only used to facilitate the explanation of the specific embodiment.

[0025] The structure of this embodiment is as follows: Figure 1-5 As shown, the device includes a frame 1, on which a mounting plate 2 is mounted. Below the mounting plate 2 are a pair of punching units 3 and a width adjustment mechanism 4 that drives the punching units 3 to move. The width adjustment mechanism 4 moves the pair of punching units 3 closer or further apart. With this structure, when changing the printing plate of the walnut box (i.e., switching between processing different sizes of walnut boxes), since the walnut box is made of rigid cardboard, the width spacing of the front and rear end faces of the walnut box cannot be flexibly adjusted according to the degree of opening, unlike paper bags. Therefore, this embodiment includes a width adjustment mechanism 4 to actively adjust the punching units 3 to adapt to the width spacing of the walnut box, making it convenient to use and highly versatile.

[0026] Furthermore, refer to Figure 2 The width adjustment mechanism 4 includes a first lead screw 41, a first servo motor 42, and a slide rail 43. The slide rail 43 is fixedly mounted below the mounting plate 2. The drilling unit 3 is equipped with a slider 31 and a connecting seat 32. The slider 31 is connected to the slide rail 43, and the connecting seat 32 is connected to the first lead screw 41. The threads at both ends of the first lead screw 41 are arranged in opposite directions, and the connecting seats 32 of the pair of drilling units 3 are respectively connected to the opposite ends of the first lead screw 41. Through this structure, the first servo motor 42 drives the first lead screw 41 to rotate, thereby causing the reverse threads on the first lead screw 41 to move the connecting seats 32, thus allowing the pair of drilling units 3 to move closer or further apart. The first servo motor 42 can precisely control the rotation angle according to the program, and the distance moved can be calculated by coordinating with the pitch of the first lead screw, achieving automatic width adjustment.

[0027] Furthermore, refer to Figure 4 A lifting plate 5 is installed above the mounting plate 2. The lifting plate 5 is slidably connected to the frame 1. A lifting mechanism 6 is installed on the frame 1, and the lifting mechanism 6 drives the lifting plate 5 to move up and down. Specifically, Figure 4 One side panel was opened, revealing the internal structure of the lifting mechanism 6. The lifting mechanism 6 includes a rack 61 mounted on the lifting plate 5 and a third servo motor 62 mounted on the frame 1. The output end of the third servo motor 62 is connected to a gear and then to the rack 61. Because the lower mounting plate 2 has a pair of perforated units 3, the overall weight is relatively large. A reducer can be connected to the output end of the third servo motor 62, and then to the gear, to increase torque by reducing the rotational speed. Slide rails are provided on both sides of the lifting plate 5, and sliders are provided on the frame 1, thus achieving a sliding connection between the lifting plate 5 and the frame 1. The function of the lifting mechanism is to automatically adjust the height using the third servo motor, thereby adapting to different sizes of walnut boxes.

[0028] Furthermore, refer to Figure 3 Each punching unit 3 includes two punching arms 33 and a hole spacing adjustment mechanism 34. The spacing between the two punching arms 33 is adjusted via the hole spacing adjustment mechanism 34. Specifically, the hole spacing adjustment mechanism 34 includes a second servo motor 341 and a second lead screw 342 connected to the second servo motor 341. The threads at both ends of the second lead screw 342 have opposite directions of rotation, and the two punching arms 33 are respectively connected to the two ends of the second lead screw 342 with opposite thread directions. With the above structure, the rotation of the second servo motor 341 can realize the adjustment of the spacing between the two punching arms 33, thereby adapting to the automatic adjustment of the hole spacing direction of different specifications of walnut boxes.

[0029] Furthermore, for specific instructions on how to drill holes, please refer to [link / reference]. Figure 5 The punching arm 33 has a gap 7 for the end face of the walnut box to pass through. A punch 8 is provided on one side of the gap 7, which can pass through the gap 7. The punch 8 is driven by a punch cylinder 801. The extended end of the punch 8 has a sharp punch. Before punching, the punch 8 is retracted. After the end face of the walnut box enters the gap 7, the punch 8... Figure 5 The same process is repeated, punching holes in the end face of the valence box to achieve the punching operation. After the punching is completed, the punch rod 8 retracts again, and then the valence box leaves the gap 7 and is sent to the next station. The new valence box then re-enters the gap.

[0030] In summary, the first, second, and third servo motors are all connected to a control unit. When changing the platen in the varistor box, only the width, height, and spacing of the varistor box need to be input. The control unit can then drive the first, second, and third servo motors to rotate precisely, achieving automatic plate changing without the need for manual plate changing on the machine. This is very convenient and quick, greatly reducing the time required for plate changing and improving work efficiency.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A punch mechanism of a warren box stringing machine comprising a frame (1), characterized in that: The frame (1) is provided with a mounting plate (2), and a pair of punching units (3) and a width adjustment mechanism (4) for driving the punching units (3) to move are provided below the mounting plate (2). The width adjustment mechanism (4) drives the pair of punching units (3) to move away from each other or closer together.

2. A punching mechanism for a Warren Box stringing machine as defined in claim 1, wherein: The width adjustment mechanism (4) includes a first lead screw (41), a first servo motor (42) and a slide rail (43). The slide rail (43) is fixedly installed below the mounting plate (2). The punching unit (3) is provided with a slider (31) and a connecting seat (32). The slider (31) is connected to the slide rail (43), and the connecting seat (32) is connected to the first lead screw (41).

3. A punching mechanism for a Warren Box stringing machine as defined in claim 2, wherein: The threads at both ends of the first lead screw (41) are arranged in opposite directions, and the connecting seats (32) of the pair of drilling units (3) are respectively connected to the two ends of the first lead screw (41) with opposite spiral directions.

4. A punching mechanism for a Warren Box stringing machine as defined in claim 1, wherein: A lifting plate (5) is provided above the mounting plate (2). The lifting plate (5) is slidably connected to the frame (1). A lifting mechanism (6) is provided on the frame (1). The lifting mechanism (6) drives the lifting plate (5) to move up and down.

5. A punching mechanism for a Warren Box stringing machine as defined in claim 4, wherein: The lifting mechanism (6) includes a rack (61) mounted on the lifting plate (5) and a third servo motor (62) mounted on the frame (1). The output end of the third servo motor (62) is connected to a gear and connected to the rack (61).

6. A punch mechanism for a Warren box stringing machine as defined in claim 1, wherein: Each of the punching units (3) includes two punching arms (33) and a hole spacing adjustment mechanism (34), and the two punching arms (33) adjust the distance between the two punching arms (33) through the hole spacing adjustment mechanism (34).

7. A punching mechanism for a Warren Box stringing machine as defined in claim 6, wherein: The hole spacing adjustment mechanism (34) includes a second servo motor (341) and a second lead screw (342) connected to the second servo motor (341). The threads at both ends of the second lead screw (342) are in opposite directions, and two punching arms (33) are respectively connected to the two ends of the second lead screw (342) with opposite thread directions.

8. A punch mechanism for a Warren box stringing machine according to claim 6, wherein: The punching arm (33) is provided with a gap (7) for the end face of the valen box to pass through, and a punch (8) is provided on one side of the gap (7) that can pass through the gap (7).

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