A perforation device for kraft paper bags

Abstract

This utility model discloses a punching device for kraft paper bags, including a frame, an adjustable punching mechanism, a support plate, a pressing mechanism, and a rotation and shifting mechanism. The support plate has four through holes evenly distributed on it. The rotation and shifting mechanism is installed on the lower side of the frame and drives the support plate to rotate. The adjustable punching mechanism is installed on the frame above the support plate. The adjustable punching mechanism includes: a first electric telescopic rod, a lifting frame, a turntable, a rotating shaft, punching heads, and a first servo motor. The telescopic end of the first electric telescopic rod is fixed to the lifting frame. Four punching heads with different shapes are evenly distributed and fixed on the outer side of the turntable. The turntable is fixed to the rotating shaft, which is rotatably connected to the lifting frame. The output shaft of the first servo motor is fixed to the rotating shaft via a coupling. The pressing mechanism is installed inside the frame and extends to the support plate. This utility model allows for easy switching, facilitates punching different types of holes, and has a wider range of applications.

Description

Technical Field

[0001] This utility model relates to the field of kraft paper bag technology, and in particular to a kraft paper bag punching device. Background Technology

[0002] In the production of kraft paper bags, it is often necessary to punch mounting holes or decorative holes in the kraft paper. Different types of holes have different shapes, such as round holes, square holes, and oval holes. Chinese patent CN220995624U discloses a punching device for processing kraft paper bags. During use, debris needs to be cleaned up. When punching, the debris is pushed into the discharge port through the guide hole. Then, the fan is turned on, and the fan draws the air out of the collection chamber. At this time, the collection chamber draws the debris from the discharge port into the collection chamber through the interface. The wire mesh box collects the debris. When the wire mesh box is full, the pull rod is pulled to disengage the locking pin from the fixing hole. Then, the fixing plate can be pulled to disengage the wire mesh box from the insertion port. Finally, the debris inside the wire mesh box can be cleaned up.

[0003] The aforementioned patent uses a fixed-shape punch head, which can only punch one type of round hole, limiting its applicability. However, in the actual punching process of kraft paper bags, different hole shapes are often required, making it difficult for the aforementioned patent to meet diverse usage needs. Therefore, in view of the above situation, there is an urgent need to develop a kraft paper bag punching device that is easy to switch between, can easily punch different types of holes, and has a wider range of applications, in order to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a punching device for kraft paper bags to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A perforation device for kraft paper bags includes a frame, an adjustable perforation mechanism, a support plate, a pressing mechanism, and a rotation and positioning mechanism. The support plate has four through holes evenly distributed on it, each with a different shape. The rotation and positioning mechanism is mounted on the lower side of the frame and drives the support plate to rotate. An adjustable perforation mechanism is mounted on the frame above the support plate. The adjustable perforation mechanism includes: a first electric telescopic rod, a lifting frame, a turntable, a rotating shaft, a punching cutter head, and a first servo motor. The number of first electric telescopic rods is two. The first electric telescopic rod is fixed to the frame, and its telescopic end is fixed to the lifting frame. Four punching heads are evenly distributed and fixed on the outer side of the turntable. The four punching heads have different shapes. The turntable is fixed to the rotating shaft, and the rotating shaft is rotatably connected to the lifting frame. The first servo motor is fixed to the lifting frame, and the output shaft of the first servo motor is fixed to the rotating shaft through a coupling. The punching head located directly below the turntable faces a through hole on the support plate. The clamping mechanism is installed inside the frame and extends to the support plate.

[0007] Preferably, the four through holes are circular, elliptical, square, and hexagonal in shape, respectively, and the four punching heads are circular, elliptical, square, and hexagonal in shape, respectively. Each punching head is used in conjunction with a through hole of the same shape.

[0008] Preferably, the clamping mechanism includes a second electric telescopic rod and a clamping block. The second electric telescopic rod is fixed inside the frame, and the telescopic end of the second electric telescopic rod is fixed to the clamping block. The clamping block extends to the support plate.

[0009] Preferably, the rotary transposition mechanism includes a second servo motor, a synchronous pulley, a synchronous belt, and a support shaft. The second servo motor is fixed to the lower side of the frame, the support shaft is rotatably connected to the frame, a synchronous pulley is fixed on the output shaft of the second servo motor, and a synchronous pulley is also fixed on the support shaft. The two synchronous pulleys are connected by a synchronous belt drive, and the upper end of the support shaft is fixed to the support plate.

[0010] Preferably, a waste discharge port is provided on the frame below the punching head located directly below the turntable, and a waste collection bucket is placed on the ground below the waste discharge port.

[0011] The beneficial effects of this utility model are as follows: When using this kraft paper bag punching device, first mark the positions to be punched on the kraft paper bag. Then, select the type of punching as needed. During selection, the first servo motor drives the rotating shaft, turntable, and punching head to rotate and switch between different punching heads, so that the required punching head rotates directly below the turntable. Then, the second servo motor drives the synchronous pulley, synchronous belt, and support shaft to rotate, and the support shaft drives the support plate to rotate, thereby switching the through holes on the support plate, so that the through holes with the same shape as the required punching head rotate directly below them. Then, place the kraft paper bag on the support plate, and the second electric telescopic rod drives the clamping block to move down, pressing the kraft paper bag tightly onto the support plate. Finally, the first electric telescopic rod drives the lifting frame, turntable, and punching head to move down, punching holes in the kraft paper bag. The waste generated during punching falls into the waste collection bin through the through holes and waste discharge port and is collected. In summary, this utility model is easy to switch between, facilitates the drilling of different types of holes, and has a wider range of applications. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0014] Figure 3 This is a schematic diagram of the usage state of this utility model.

[0015] Figure 4 This is a partial structural diagram of the present invention. Figure 1 .

[0016] Figure 5 This is a partial structural diagram of the present invention. Figure 2 .

[0017] Figure 6 This is a partial structural diagram of the present invention. Figure 3 .

[0018] Figure 7 This is a partial structural diagram of the present invention. Figure 4 .

[0019] Figure 8 This is a partial structural diagram of the present invention. Figure 5 .

[0020] Legend:

[0021] 1. Frame; 101. Waste discharge port; 2. Adjustable punching mechanism; 201. First electric telescopic rod; 202. Lifting frame; 203. Turntable; 204. Rotating shaft; 205. Punching head; 206. First servo motor; 3. Support plate; 301. Through hole; 4. Clamping mechanism; 401. Second electric telescopic rod; 402. Clamping block; 5. Rotary shifting mechanism; 501. Second servo motor; 502. Synchronous pulley; 503. Synchronous belt; 504. Support shaft; 6. Waste collection bin; 7. PLC controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] See Figures 1-8In this embodiment of the present invention, a kraft paper bag punching device includes a frame 1, an adjustable punching mechanism 2, a support plate 3, a pressing mechanism 4, and a rotation and positioning mechanism 5. The support plate 3 is used to support the kraft paper to be punched. Four through holes 301 are evenly distributed on the support plate 3. The four through holes 301 have different shapes: circular, elliptical, square, and hexagonal, respectively. The rotation and positioning mechanism 5 is installed on the lower side of the frame 1 and is used to drive the support plate 3 to rotate. An adjustable punching mechanism 2 is installed on the frame 1 above the support plate 3. The adjustable punching mechanism 2 includes: a first electric telescopic rod 201, a lifting frame 202, a turntable 203, a rotating shaft 204, punching heads 205, and a first servo motor 206. There are two first electric telescopic rods 201, which are fixed to the frame 1. The telescopic ends of the first electric telescopic rods 201 are fixed to the lifting frame 202. Four punching heads 205 are evenly distributed and fixed on the outer side of the turntable 203. The four punching heads 205 have different shapes: circular, elliptical, square, and hexagonal, respectively. Each punching head 205 is used in conjunction with a through hole 301 of the same shape to process holes of different shapes. The turntable 203 is fixed to the rotating shaft 204, which is rotatably connected to the lifting frame 202. The first servo motor 206 is fixed to the lifting frame 202, and its output shaft is fixed to the rotating shaft 204 via a coupling. The output shaft of the first servo motor 206 rotates 90° each time, driving the rotating shaft 204, the turntable 203, and the punching head 205, thereby accurately switching between different punching heads 205. The punching head 205 located directly below the turntable 203 faces a through hole 301 on the support plate 3. The clamping mechanism 4 is installed inside the frame 1 and extends to the support plate 3. The clamping mechanism 4 is used to press the kraft paper onto the support plate 3 to maintain the stability of the kraft paper during punching.

[0025] The pressing mechanism 4 includes a second electric telescopic rod 401 and a clamping block 402. The second electric telescopic rod 401 is fixed inside the frame 1. The telescopic end of the second electric telescopic rod 401 is fixed to the clamping block 402. The clamping block 402 extends to the support plate 3. In use, the clamping block 402 is moved down by the second electric telescopic rod 401, and the kraft paper is pressed onto the support plate 3 by the clamping block 402.

[0026] The rotary switching mechanism 5 includes a second servo motor 501, a synchronous pulley 502, a synchronous belt 503, and a support shaft 504. The second servo motor 501 is fixed to the lower side of the frame 1, and the support shaft 504 is rotatably connected to the frame 1. A synchronous pulley 502 is fixed on the output shaft of the second servo motor 501, and a synchronous pulley 502 is also fixed on the support shaft 504. The two synchronous pulleys 502 are connected by a synchronous belt 503. The upper end of the support shaft 504 is fixed to the support disk 3. The output shaft of the second servo motor 501 rotates 90° each time, thereby accurately switching the through hole 301 on the support disk 3. In use, the second servo motor 501 drives the synchronous pulley 502, the synchronous belt 503, and the support shaft 504 to rotate, and the support shaft 504 drives the support disk 3 to rotate, thereby switching the through hole 301 on the support disk 3.

[0027] Below the punching head 205 located directly below the turntable 203, a waste discharge port 101 is provided on the frame 1. Below the waste discharge port 101, a waste collection bucket 6 is placed on the ground. The waste generated during punching passes through the through hole 301 and the waste discharge port 101 and falls into the waste collection bucket 6 for collection.

[0028] The first servo motor 206 and the second servo motor 501 are both model 8LVB33.B1004L1CS00, and these motors have a self-locking function.

[0029] A PLC controller 7 is fixed to the side of the frame 1. The PLC controller 7 is used to control the first electric telescopic rod 201, the first servo motor 206, the second electric telescopic rod 401, and the second servo motor 501.

[0030] Working Principle: When using this kraft paper bag punching device, first mark the punching locations on the kraft paper bag. Then, select the desired punching type. During selection, the first servo motor 206 drives the rotating shaft 204, turntable 203, and punching head 205, thus rotating and switching between different punching heads 205 until the desired punching head 205 is directly below the turntable 203. Then, the second servo motor 501 drives the synchronous pulley 502, synchronous belt 503, and support shaft 504 to rotate. The support shaft 504 then drives the support plate 3 to rotate. The through hole 301 on the support plate 3 is switched so that the through hole 301 with the same shape as the required punching head 205 is rotated to its direct position. Then, the kraft paper bag is placed on the support plate 3. The clamping block 402 is moved down by the second electric telescopic rod 401, and the clamping block 402 presses the kraft paper bag tightly onto the support plate 3. Finally, the lifting frame 202, turntable 203 and punching head 205 are moved down by the first electric telescopic rod 201 to punch a hole in the kraft paper bag. The waste generated during punching passes through the through hole 301 and the waste discharge port 101 and falls into the waste collection bucket 6 for collection.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] 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 perforation device for kraft paper bags, characterized in that, The system includes a frame (1), an adjustable punching mechanism (2), a support plate (3), a clamping mechanism (4), and a rotary positioning mechanism (5). The support plate (3) has four through holes (301) evenly distributed on it, and the four through holes (301) have different shapes. The rotary positioning mechanism (5) is installed on the lower side of the frame (1) and is used to drive the support plate (3) to rotate. The adjustable punching mechanism (2) is installed on the frame (1) above the support plate (3). The adjustable punching mechanism (2) includes: a first electric telescopic rod (201), a lifting frame (202), a turntable (203), a rotating shaft (204), a punching head (205), and a first servo motor (206). There are two first electric telescopic rods (201) and they are fixed on the frame (1). The telescopic end of the first electric telescopic rod (201) is fixed to the lifting frame (202). Four punching heads (205) are evenly distributed and fixed on the outer side of the turntable (203). The four punching heads (205) have different shapes. The turntable (203) is fixed to the rotating shaft (204). The rotating shaft (204) is rotatably connected to the lifting frame (202). The first servo motor (206) is fixed on the lifting frame (202). The output shaft of the first servo motor (206) is fixed to the rotating shaft (204) through a coupling. The punching head (205) located directly below the turntable (203) faces a through hole (301) on the support plate (3). The pressing mechanism (4) is installed in the frame (1) and extends to the support plate (3).

2. The kraft paper bag punching device according to claim 1, characterized in that, The four through holes (301) are circular, elliptical, square and hexagonal respectively, and the four punching heads (205) are circular, elliptical, square and hexagonal respectively. Each punching head (205) is used in conjunction with a through hole (301) of the same shape.

3. The kraft paper bag punching device according to claim 1, characterized in that, The clamping mechanism (4) includes a second electric telescopic rod (401) and a clamping block (402). The second electric telescopic rod (401) is fixed inside the frame (1). The telescopic end of the second electric telescopic rod (401) is fixed to the clamping block (402). The clamping block (402) extends to the support plate (3).

4. The perforation device for kraft paper bags according to claim 1, characterized in that, The rotary transposition mechanism (5) includes: a second servo motor (501), a synchronous pulley (502), a synchronous belt (503), and a support shaft (504). The second servo motor (501) is fixed to the lower side of the frame (1). The support shaft (504) is rotatably connected to the frame (1). A synchronous pulley (502) is fixed on the output shaft of the second servo motor (501). A synchronous pulley (502) is also fixed on the support shaft (504). The two synchronous pulleys (502) are connected by a synchronous belt (503). The upper end of the support shaft (504) is fixed to the support plate (3).

5. The perforation device for kraft paper bags according to claim 1, characterized in that, Below the punching head (205) located directly below the turntable (203), a waste discharge port (101) is provided on the frame (1), and a waste collection bucket (6) is placed on the ground below the waste discharge port (101).

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