Punching equipment for food packaging bag processing

Abstract

The utility model belongs to the field of punching equipment, and particularly relates to punching equipment for food packaging bag processing, which comprises a machine frame and a placing cavity arranged on the machine frame and used for placing a packaging bag, the machine frame is provided with an assembling cavity, an air cylinder and a positioning mechanism, the air cylinder and the positioning mechanism are fixed at the top of the machine frame, and a rectangular groove is arranged on the top surface of the inner wall of the placing cavity. The positioning mechanism comprises a fixing block, the fixing block is fixed to the outer wall of the connecting rod, cross rods are fixed to the two ends of the fixing block, vertical rods are arranged on the two cross rods, pressing plates are fixed to the bottoms of the two vertical rods, and the pressing plates are fixed to the two ends of the fixing block. The number of the pressing plates is two, and the two pressing plates are fixedly connected through a spring. Through the structural design of the rectangular groove and the pressing plate, the device can adapt to packaging bags of different specifications, in the punching process, punching deviation caused by displacement is effectively avoided, and the punching quality of various food packaging bags is improved.

Description

Technical Field

[0001] This utility model relates to the field of punching equipment, specifically a punching device for processing food packaging bags. Background Technology

[0002] In the food packaging industry, the processing quality of food packaging bags directly affects the shelf life of food, transportation safety, and consumer purchasing experience. Perforation, as a crucial step in food packaging bag processing, plays a vital role. For example, perforating vacuum-packed food bags to balance internal and external air pressure, or perforating self-sealing bags for easy hanging and display, are all important processes. A Chinese utility model patent (publication number: CN220500105U) discloses a perforation device for food packaging bags that effectively limits the positioning of the packaging bag, preventing displacement due to external forces during perforation, enhancing the practicality of the perforation machine, and preventing the packaging bag from becoming skewed during perforation.

[0003] However, the above-mentioned device still has some shortcomings in use. Specifically, when dealing with small packaging bags, it is difficult for the two sides of the packaging bag to effectively contact the support plate. The pressure plate cannot fully contact the side of the small packaging bag and apply sufficient positioning force. Therefore, the small packaging bag shakes when punching holes, resulting in the punching position being skewed. Therefore, a punching device for food packaging bag processing is proposed to address the above situation. Utility Model Content

[0004] To address the problem in existing technologies that the pressure plate cannot fully contact the side of small packaging bags and apply sufficient positioning force, this utility model proposes a punching device for processing food packaging bags.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a punching device for processing food packaging bags, including a frame, a placement cavity opened on the frame for placing packaging bags, an assembly cavity opened on the frame, a cylinder and a positioning mechanism fixed on the top of the frame, a rectangular groove opened on the top surface of the inner wall of the placement cavity, there are two rectangular grooves, and the moving end of the cylinder is fixed with a connecting rod after passing through the assembly cavity.

[0006] The positioning mechanism includes a fixing block, which is fixed to the outer wall of the connecting rod. Both ends of the fixing block are fixed with horizontal bars, and vertical bars are provided on both horizontal bars. Pressure plates are fixed to the bottom of the two vertical bars. There are two pressure plates, and the two pressure plates are fixedly connected by springs.

[0007] Preferably, the top of the frame is provided with a circular hole through which the moving end of the cylinder can pass, and a punching head is fixed to the bottom of the connecting rod.

[0008] Preferably, the bottom of the assembly cavity is provided with a through hole, which communicates with the placement cavity. When the cylinder drives the connecting rod to descend, the punching head passes through the through hole.

[0009] Preferably, the positioning mechanism further includes support plates fixed on both sides of the frame for supporting the packaging bag, the top of the support plates being flush with the bottom surface of the placement cavity.

[0010] Preferably, the pressure plate includes two side plates and two connecting plates, and the two side plates are connected by two connecting plates.

[0011] Preferably, the connecting plate is slidably fitted with the rectangular grooves, and the two rectangular grooves are located on both sides of the through hole.

[0012] Preferably, a rubber pad is provided at the bottom of the pressure plate near one end of the support plate.

[0013] Preferably, both sides of the outer surface of the vertical rod are fixed with "L"-shaped reinforcing rods.

[0014] The advantages of this utility model are:

[0015] 1. This utility model, through the structural design of rectangular groove and pressure plate, enables the device to be adapted to packaging bags of different specifications. During the punching process, it effectively avoids punching deviation caused by displacement and improves the punching quality of various food packaging bags.

[0016] 2. Through the structural design of the fixed block, horizontal bar and vertical bar, this utility model allows the positioning mechanism to automatically descend and position the packaging bag simultaneously when the punching head descends to perform the punching operation. After punching is completed, the punching head moves up and the positioning mechanism automatically resets. This solves the cumbersome process of manually positioning and releasing the positioning for each punching operation in the traditional technology, and greatly reduces the labor intensity of the workers. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This is a schematic diagram of the drilling equipment.

[0019] Figure 2 This is a schematic diagram of the bottom structure of the rack;

[0020] Figure 3 This is a schematic diagram of the positioning mechanism;

[0021] Figure 4 This is a schematic diagram of the pressure plate structure.

[0022] In the diagram: 1. Frame; 100. Assembly cavity; 101. Placement cavity; 102. Through hole; 103. Rectangular groove; 2. Cylinder; 3. Positioning mechanism; 300. Fixing block; 301. Horizontal bar; 302. Vertical bar; 303. Pressure plate; 304. Spring; 305. Support plate. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.

[0025] This application discloses a punching device for processing food packaging bags. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A punching device for processing food packaging bags includes a frame 1, a placement cavity 101 for placing packaging bags on the frame 1, an assembly cavity 100 on the frame 1, a cylinder 2 and a positioning mechanism 3 fixed to the top of the frame 1. A rectangular groove 103 is formed on the top surface of the inner wall of the placement cavity 101. There are two rectangular grooves 103. The moving end of the cylinder 2 passes through the assembly cavity 100 and is fixed with a connecting rod.

[0026] The positioning mechanism 3 includes a fixing block 300, which is fixed to the outer wall of the connecting rod. Both ends of the fixing block 300 are fixed with horizontal bars 301. Vertical bars 302 are provided on both horizontal bars 301. Pressure plates 303 are fixed to the bottom of the two vertical bars 302. There are two pressure plates 303, which are fixedly connected by springs 304. "L"-shaped reinforcing bars are fixed on both sides of the outer surface of the vertical bars 302. The bottom of the "L"-shaped reinforcing bars is fixed to the pressure plate 303 above.

[0027] Reference Figure 1 and Figure 2The top of the frame 1 has a round hole through which the moving end of the cylinder 2 can pass. A punching head is fixed at the bottom of the connecting rod. The bottom of the assembly cavity 100 has a through hole 102, which is connected to the placement cavity 101. When the cylinder 2 drives the connecting rod to descend, the punching head passes through the through hole 102. Through the operation of the cylinder 2, the piston rod can be lowered, which in turn causes the connecting rod to descend and drive the punching head to descend, so as to punch the packaging bag placed in the placement cavity 101.

[0028] Reference Figure 1 The positioning mechanism 3 also includes support plates 305 fixed on both sides of the frame 1 for supporting the packaging bag. The top of the support plate 305 is flush with the bottom surface of the placement cavity 101. By setting the support plate 305, the packaging bag with a larger size that extends out of the placement cavity 101 can be supported on both sides, which is convenient to cooperate with the pressure plate 303 to complete the positioning operation of the packaging bag.

[0029] Reference Figure 4 The pressure plate 303 includes two side plates and two connecting plates. The two side plates are connected by two connecting plates. The side plates are mainly used to position the two sides of the packaging bag, and the connecting plates are used to position the middle section of the packaging bag, thereby improving the positioning effect.

[0030] The distance between the bottom of the pressure plate 303 and the placement cavity 101 is less than the distance between the punching head and the placement cavity 101, thus ensuring that the punching head performs punching after the pressure plate 303 has completed the positioning of the packaging bag.

[0031] Reference Figure 2 and Figure 3 The connecting plate slides into the rectangular groove 103. The two rectangular grooves 103 are located on both sides of the through hole 102, so as not to interfere with the drilling operation of the punch head.

[0032] Reference Figure 3 A rubber pad is provided at the bottom of the pressure plate 303 near the support plate 305. By providing the rubber pad, the pressure plate 303 can prevent the packaging bag from being squeezed and damaged.

[0033] Working principle: The food packaging bag to be processed is placed horizontally in the placement cavity 101. The cylinder 2 is activated, and the cylinder 2 drives the punching head to descend. At the same time, the crossbar 301 descends, so that the pressure plate 303 contacts the packaging bag first. As the punching head continues to descend, the bottom pressure plate 303 contacts the support plate 305 and the placement cavity 101, and squeezes the spring 304 in the direction, so that the punching head can continue to descend to complete the punching operation. For small packaging bags, the descent of the pressure plate 303 3031 can position the packaging bag inside the placement cavity 101, so that this device can be adapted to packaging bags of different sizes. During the punching process, it effectively avoids the punching deviation caused by displacement and improves the punching quality of various food packaging bags.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A punching device for food packaging bag processing, comprising a rack (1), a mounting cavity (100) is formed in the rack (1), characterized in that, Also includes: A placement cavity (101) for placing packaging bags is provided on the frame (1). A rectangular groove (103) is provided on the top surface of the inner wall of the placement cavity (101). There are two rectangular grooves (103). A cylinder (2) is fixed on the top of the frame (1), and the moving end of the cylinder (2) is fixed with a connecting rod after entering the assembly cavity (100); The positioning mechanism (3) includes a fixing block (300), which is fixed to the outer wall of the connecting rod. Both ends of the fixing block (300) are fixed with a horizontal bar (301), and both horizontal bars (301) are provided with vertical bars (302). The bottom of the two vertical bars (302) is fixed with a pressure plate (303). There are two pressure plates (303), and the two pressure plates (303) are fixedly connected by a spring (304).

2. The perforating apparatus for processing a food packaging bag according to claim 1, wherein: The top of the frame (1) is provided with a round hole through which the moving end of the cylinder (2) can pass, and the bottom of the connecting rod is fixed with a punch head; The bottom of the assembly cavity (100) is provided with a through hole (102), which is connected to the placement cavity (101). When the cylinder (2) drives the connecting rod to descend, the punching head passes through the through hole (102).

3. The perforating apparatus for processing a food packaging bag according to claim 1, wherein: The positioning mechanism (3) also includes support plates (305) fixed on both sides of the frame (1) for supporting the packaging bag, the top of the support plate (305) being flush with the bottom surface of the placement cavity (101).

4. The perforating apparatus for processing a food packaging bag according to claim 3, wherein: The pressure plate (303) includes a side plate and a connecting plate, and there are two side plates and two connecting plates. The two side plates are connected by two connecting plates.

5. The perforating apparatus for processing a food packaging bag according to claim 4, wherein: The connecting plate is slidably engaged with the rectangular groove (103), and the two rectangular grooves (103) are located on both sides of the through hole (102).

6. The perforating apparatus for processing a food packaging bag according to claim 3, wherein: A rubber pad is provided at the bottom of the pressure plate (303) near one end of the support plate (305).

7. The perforating apparatus for processing a food packaging bag according to claim 1, wherein: Both sides of the outer surface of the vertical rod (302) are fixed with "L"-shaped reinforcing rods.

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