Punching device for composite paper can

Abstract

The utility model discloses a punching device for a composite paper can, which comprises a support frame and the composite paper can, and further comprises a punching base, the punching base comprises a steel pipe, the upper end of the steel pipe is fixedly provided with a second abutting curved surface, the lower end of the steel pipe is provided with a bottom plug, and the second abutting curved surface is provided with a second cutter hole communicated with the steel pipe; a hydraulic lifting rod is fixedly arranged on the supporting frame, a punching device is arranged at the lower end of the hydraulic lifting rod in a lifting mode, and a punching base is detachably installed on the supporting frame through a steel pipe and located under the punching device. A punching tool used for punching is arranged in the punching device and can be punched into the second tool hole through a hydraulic lifting rod. The punching base is transversely sleeved with the composite paper can, and the inner wall of the composite paper can is located on the upper end face of the second abutting curved surface in a matched mode. The punching base is detachably arranged on the supporting frame, the interior of the composite paper can can be supported, the part around a hole is supported to a certain degree in the punching process, and deformation is prevented.

Description

Technical Field

[0001] This utility model relates to the field of paper can punching technology, specifically a punching device for composite paper cans. Background Technology

[0002] Composite paper cans, as an environmentally friendly packaging container, are widely used in the food, pharmaceutical, and cosmetic industries. During the production process, it is often necessary to punch ventilation holes, positioning holes, or decorative holes into the can body. Making holes in composite paper cans requires drilling or punching equipment.

[0003] In the prior art, utility model patent CN201922105011.7 discloses a novel paper tube punching machine, including a worktable, a hydraulic cylinder, and a punching head. The top surface of the worktable has a groove, and collection baskets are bolted to both sides of the worktable. A support plate is bolted to the top of the worktable. A clamping plate is installed in the groove, and a threaded rod is connected to one end of the clamping plate by a bearing. A threaded hole matching the threaded rod is provided on the worktable opposite to the bottom end of the threaded rod. A hydraulic cylinder is bolted to the top surface of the support plate, and a fixing frame is bolted to the piston rod end of the hydraulic cylinder. The punching head of this novel paper tube punching machine has a hollow structure. When it moves vertically downwards to punch, it works with a vertical rod to draw outside air into the punching head through a through-hole. When punching ends and the punching head moves upwards, it squeezes out the drawn-in air. The paper tube scraps are relatively light and easily carried out by the airflow, thus allowing for the collection of residual paper tube scraps after punching.

[0004] The paper tube punching machine provided by the above patent can also be used to punch holes in composite paper cans. However, when using this punching machine to punch holes in composite paper cans, the lack of a supporting structure inside the composite paper can easily cause the composite paper can to deform under pressure, affecting the normal use of the composite paper can. Further improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a punching device for composite paper cans, which aims to improve the problem that existing punching machines lack the structure to support the interior of composite paper cans, and that when using them to punch holes in composite paper cans, the composite paper cans are easily deformed by pressure, affecting the normal use of the composite paper cans.

[0006] This utility model is implemented as follows: A punching device for composite paper cans includes a support frame and a composite paper can, and also includes a punching base. The punching base includes a steel pipe, the upper end of which is fixedly provided with a second abutting curved surface, and the lower end is installed with a bottom plug. The second abutting curved surface is provided with a second cutting hole communicating with the steel pipe. The support frame is fixedly provided with a hydraulic lifting rod, and the lower end of the hydraulic lifting rod is provided with a punching device. The punching base is detachably installed on the support frame through the steel pipe and is located directly below the punching device. The punching device is provided with a punching cutter for punching, and the punching cutter can punch into the second cutting hole through the hydraulic lifting rod. The composite paper can is horizontally fitted on the punching base, and its inner wall is adapted to sit on the upper end surface of the second abutting curved surface.

[0007] Preferably, the support frame includes a base, on which a support rod is fixedly mounted. From top to bottom, the side of the support rod has a first crossbar and a second crossbar of equal length. A fixing hole is provided at the end of the first crossbar furthest from the support rod, and the hydraulic lifting rod is fixedly installed in the fixing hole. A mounting buckle is provided at the end of the second crossbar furthest from the support rod. The mounting buckle is an annular structure with one open end, and a locking bolt is provided at the open end of the mounting buckle. The steel pipe body is detachably secured in the mounting buckle by the locking bolt.

[0008] Preferably, it also includes a limiting plate, which is fitted onto the body of the second crossbar. The limiting plate is provided with limiting bolts, and the limiting plate is adjustablely mounted on the second crossbar via the limiting bolts.

[0009] Preferably, the punching device further includes a pressure plate, a chip removal rod, and a connecting seat; the lower end of the pressure plate is provided with a first abutting curved surface adapted to the outer surface of the composite paper can, and a plurality of fixing rods are sequentially provided along its circumference at the upper end; a first cutting hole is provided in the middle of the pressure plate.

[0010] Preferably, the punching tool includes a mounting plate and a tool body. The upper end of the tool body is fixedly provided with the mounting plate, which is elastically mounted on a fixed rod. The tool body is movably inserted into the first punch hole.

[0011] Preferably, the cutter body is a hollow tubular structure, and a chip removal rod is movably inserted inside. The upper end of the chip removal rod is provided with an extension rod corresponding to the position of the fixed rod. The chip removal rod is detachably connected to the upper end of the fixed rod through the extension rod. The upper end of the connecting seat is connected to a hydraulic lifting rod, and the lower end is connected to a mounting plate, without interfering with the fixed rod.

[0012] Preferably, the pressure plate further includes a spring, the fixing rod is fitted with a spring, and the mounting plate is elastically mounted on the fixing rod by the spring.

[0013] Preferably, each extension rod is provided with a mounting bolt at a position corresponding to the fixed rod, and the extension rod can be detachably mounted on the upper end face of the fixed rod by means of the mounting bolt.

[0014] Preferably, the inner diameter of the steel pipe is larger than the second cutting hole, and the bottom plug is made of rubber.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model provides internal support for composite paper cans by detachably installing a punching base on the support frame, thereby providing certain support for the area around the hole during the punching process and preventing deformation.

[0017] 2. This utility model can collect the paper scraps generated during punching into the steel pipe connected to the second punch hole by setting a steel pipe in the punching base, which is convenient for cleaning.

[0018] 3. This utility model provides a pressure plate elastically set on the lower end face of the punching tool in the punching device, and a chip removal rod fixedly connected to the pressure plate in the body of the punching tool. This not only provides buffering through the pressure plate, but also presses against the outer surface of the composite paper can to prevent the punching tool from pulling the edge of the hole when it retracts, which would cause tearing of the hole edge. At the same time, the chip removal rod can clean the inside of the blade body at any time to prevent paper scraps from getting stuck inside the blade body. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention during the punching of composite paper cans;

[0021] Figure 3 This is a three-dimensional structural diagram of the support frame of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the punching device of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the pressure plate of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the punching tool of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the chip removal bar of this utility model;

[0026] Figure 8 This is a three-dimensional structural diagram of the punched base of this utility model.

[0027] In the diagram: 1. Support frame; 101. Base; 102. Support rod; 103. First crossbar; 104. Fixing hole; 105. Second crossbar; 106. Mounting buckle; 107. Locking bolt; 2. Hydraulic lifting rod; 3. Punching device; 301. Pressure plate; 302. Punching tool; 303. Chip removal rod; 304. Connecting seat; 305. First abutment surface; 306. First cutting hole; 307. Fixing rod; 308. Spring; 309. Mounting plate; 310. Tool body; 311. Extension rod; 312. Mounting bolt; 4. Punching base; 401. Second abutment surface; 402. Second cutting hole; 403. Steel pipe; 404. Bottom plug; 5. Limiting plate; 501. Limiting bolt; 6. Composite paper can. Detailed Implementation

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.

[0029] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0030] Example 1

[0031] like Figure 1 , Figure 2 and Figure 8 As shown, a punching device for composite paper cans includes a support frame 1 and a composite paper can 6, and a punching base 4. The punching base 4 includes a steel pipe 403. A second abutment surface 401 is fixedly provided at the upper end of the steel pipe 403, and a bottom plug 404 is installed at the lower end. A second cutting hole 402 communicating with the steel pipe 403 is provided on the second abutment surface 401. The inner diameter of the steel pipe 403 is larger than the second cutting hole 402. The bottom plug 404 is made of rubber. The second abutment surface 401 fits against the inner wall of the composite paper can 6, preventing the pipe wall of the composite paper can 6 from deforming during punching. At the same time, the steel pipe 403 allows the punched paper scraps to be discharged into the steel pipe 403, thus collecting the paper scraps for easy centralized cleaning. During cleaning, the bottom plug 404 at the bottom of the steel pipe 403 can be opened to remove the paper scraps from the steel pipe 403.

[0032] like Figure 1 , Figure 3 and Figure 8As shown, a hydraulic lifting rod 2 is fixedly mounted on the support frame 1. A punching device 3 is mounted on the lower end of the hydraulic lifting rod 2. A punching base 4 is detachably mounted on the support frame 1 via a steel pipe 403 and is located directly below the punching device 3. The support frame 1 includes a base 101, on which a support rod 102 is fixedly mounted. From top to bottom, the side of the support rod 102 is provided with a first crossbar 103 and a second crossbar 105 of equal length. The support rod 102, the first crossbar 103, and the second crossbar 105 are all connected by welding. A fixing hole 104 is provided at the end of the first crossbar 103 away from the support rod 102, and the hydraulic lifting rod 2 is fixedly installed in the fixing hole 104. The hydraulic lifting rod 2 is fixedly installed in the fixing hole 104 by welding or bolt connection. The second crossbar 105 has a mounting buckle 106 at the end furthest from the support rod 102. The mounting buckle 106 is an open-ended annular structure with a locking bolt 107 at the open end. The steel pipe 403 is detachably secured in the mounting buckle 106 via the locking bolt 107. The mounting buckle 106 can be opened and closed via the locking bolt 107, facilitating the clamping of the steel pipe 403 in the punching base 4 or its loosening and disassembly. Additionally, a limiting plate 5 is included. A limiting plate 5 is fitted onto the body of the second crossbar 105, and a limiting bolt 501 is provided on the limiting plate 5. The limiting plate 5 is adjustable on the second crossbar 105 via the limiting bolt 501. By setting the limiting plate 5, the insertion length of the composite paper can 6 can be limited, thereby achieving the function of limiting the punching. Simultaneously, the limiting plate 5 can be locked via the limiting bolt 501, facilitating the adjustment of its position.

[0033] like Figure 2 and Figures 4-7As shown, the punching device 3 is equipped with a punching cutter 302 for punching. The punching cutter 302 can be inserted into the second cutter hole 402 via a hydraulic lifting rod 2. The composite paper can 6 is horizontally mounted on the punching base 4, and its inner wall is adapted to sit on the upper end face of the second abutment curved surface 401. By placing the composite paper can 6 on the second abutment curved surface 401, it is convenient to punch the composite paper can 6 with the punching cutter 302. The punching device 3 also includes a pressure plate 301, a chip removal rod 303, and a connecting seat 304; the lower end of the pressure plate 301 is provided with a first abutting curved surface 305 that is adapted to the outer surface of the composite paper can 6, and a plurality of fixing rods 307 are arranged sequentially along its circumference at the upper end; a first cutting hole 306 is provided in the middle of the pressure plate 301; the punching tool 302 includes a mounting plate 309 and a tool body 310, the upper end of the tool body 310 is fixedly provided with the mounting plate 309, the mounting plate 309 is elastically mounted on the fixing rods 307, and the tool body 310 is movably inserted into the first cutting hole 306; the pressure plate 301 also includes a spring 308, the fixing rod 307 is fitted with the spring 308, and the mounting plate 309 is elastically mounted on the fixing rod 307 through the spring 308. When the punching tool 302 moves downward to punch holes via the hydraulic lifting rod 2, the pressure plate 301 first abuts against the composite paper can 6 via the first abutting curved surface 305. During the downward movement of the hydraulic lifting rod 2, the pressure plate 301 gradually compresses and adheres to the mounting plate 309 on the punching tool 302, thereby allowing the blade body 310 to penetrate into the composite paper can 6 through the first cutting hole 306, achieving punching, and discharging paper scraps into the steel pipe 403 through the second cutting hole 402. The blade body 310 has a hollow tubular structure, and a chip removal rod 303 is movably inserted inside. The upper end of the chip removal rod 303 is provided with an extension rod 311 corresponding to the position of the fixed rod 307. The chip removal rod 303 is detachably connected to the upper end of the fixed rod 307 via the extension rod 311. The extension rod 311 is provided with a mounting bolt 312 corresponding to the position of the fixed rod 307, and the extension rod 311 is detachably mounted on the upper end face of the fixed rod 307 via the mounting bolt 312. The upper end of the connecting seat 304 is connected to the hydraulic lifting rod 2, and the lower end is connected to the mounting plate 309, without interfering with the fixing rod 307. When the blade body 310 retracts, if paper scraps are stuck in the hollow structure of the blade body 310, during the upward movement of the blade body 310, since the chip ejection rod 303 and the fixing rod 307 on the pressure plate 301 are fixedly connected, the chip ejection rod 303 will gradually fill the interior of the blade body 310 and push out the stuck paper scraps, preventing the paper scraps from getting stuck in the blade body 310. At the same time, it can also prevent the punching tool 302 from moving the edge of the hole when it retracts, causing tearing of the hole edge.

[0034] Example 2

[0035] like Figure 1 , Figure 2 and Figure 8As shown, a punching device for composite paper cans includes a support frame 1 and a composite paper can 6, and also includes a punching base 4. The punching base 4 includes a steel pipe 403. The upper end of the steel pipe 403 is fixedly provided with a second abutting curved surface 401, and the lower end is installed with a bottom plug 404. The second abutting curved surface 401 is provided with a second cutting hole 402 that communicates with the steel pipe 403. The inner diameter of the steel pipe 403 is larger than the second cutting hole 402, and the bottom plug 404 is made of rubber.

[0036] like Figure 1 , Figure 3 and Figure 8 As shown, a hydraulic lifting rod 2 is fixedly installed on the support frame 1. A punching device 3 is installed at the lower end of the hydraulic lifting rod 2. A punching base 4 is detachably installed on the support frame 1 via a steel pipe 403 and is located directly below the punching device 3. The support frame 1 includes a base 101. A support rod 102 is fixedly installed on the base 101. A first crossbar 103 and a second crossbar 105 of equal length are arranged sequentially from top to bottom on the side of the support rod 102. A fixing hole 104 is provided at the end of the first crossbar 103 away from the support rod 102, and the hydraulic lifting rod 2 is fixedly installed in the fixing hole 104. A mounting buckle 106 is provided at the end of the second crossbar 105 away from the support rod 102. The mounting buckle 106 is an annular structure with one open end. A locking bolt 107 is provided at the open end of the mounting buckle 106. The position of the steel pipe 403 is detachably clamped in the mounting buckle 106 via the locking bolt 107. It also includes a limiting plate 5. The limiting plate 5 is fitted on the body of the second crossbar 105. The limiting plate 5 is provided with a limiting bolt 501. The limiting plate 5 can be adjusted and set on the second crossbar 105 by the limiting bolt 501.

[0037] like Figure 2 and Figures 4-7As shown, the punching device 3 is equipped with a punching cutter 302 for punching. The punching cutter 302 can be punched into the second cutter hole 402 through the hydraulic lifting rod 2. The composite paper can 6 is horizontally mounted on the punching base 4, and its inner wall is adapted to sit on the upper end face of the second abutting curved surface 401. The punching device 3 also includes a pressure plate 301, a chip removal rod 303, and a connecting seat 304; the lower end of the pressure plate 301 is provided with a first abutting curved surface 305 that is adapted to the outer surface of the composite paper can 6, and a plurality of fixing rods 307 are arranged sequentially along its circumference at the upper end; a first cutting hole 306 is provided in the middle of the pressure plate 301; the punching tool 302 includes a mounting plate 309 and a tool body 310, the upper end of the tool body 310 is fixedly provided with the mounting plate 309, the mounting plate 309 is elastically mounted on the fixing rods 307, and the tool body 310 is movably inserted into the first cutting hole 306; the pressure plate 301 also includes a spring 308, the fixing rod 307 is fitted with the spring 308, and the mounting plate 309 is elastically mounted on the fixing rod 307 through the spring 308. The cutter body 310 has a hollow tubular structure, and a chip removal rod 303 is movably inserted inside. An extension rod 311 is provided at the upper end of the chip removal rod 303, corresponding to the position of the fixed rod 307. The chip removal rod 303 is detachably connected to the upper end of the fixed rod 307 via the extension rod 311. Mounting bolts 312 are provided at the positions of the extension rods 311 and detachably mounted on the upper end face of the fixed rod 307 via the mounting bolts 312. The upper end of the connecting seat 304 is connected to the hydraulic lifting rod 2, and the lower end is connected to the mounting plate 309, without interfering with the fixed rod 307.

[0038] The working principle of this utility model is as follows: During use, the position of the limiting plate 5 is adjusted according to the location where holes need to be punched in the composite paper can 6. Then, the composite paper can 6 is fitted onto the second crossbar 105 and abuts against the limiting plate 5, with the inner wall of the composite paper can 6 abutting against the second abutting curved surface 401. Then, the hydraulic lifting rod 2 is activated, controlling the punching device 3 to move downwards. During the downward movement of the hydraulic lifting rod 2, the first abutting curved surface 305 of the pressure plate 301 first abuts against the outer surface of the composite paper can 6, further pressing the area around the punching location of the composite paper can 6. Then, as the hydraulic lifting rod 2 moves downwards, the hydraulic... The lifting rod 2 continues to push the punching cutter 302 downward through the connecting seat 304, and through the compression spring 308, the punching cutter 302 pierces into the composite paper can 6, and finally pierces into the second cut hole 402, thereby realizing punching, and pushing the punched paper scraps into the steel pipe 403. When the paper scraps are stuck inside the knife body 310, during the upward movement of the knife body 310, since the chip removal rod 303 and the fixing rod 307 on the pressure plate 301 are fixedly connected, when the knife body 310 is retracted, the chip removal rod 303 will gradually fill the inside of the knife body 310 and push out the stuck paper scraps inside, preventing the paper scraps from getting stuck in the knife body 310.

[0039] In summary, this utility model, by detachably installing a punching base 4 on the support frame 1, can support the interior of the composite paper can 6, thereby providing certain support to the area around the hole during the punching process and preventing deformation. By installing a steel pipe 403 connected to the second cutting hole 402 in the punching base 4, the paper scraps generated during punching can be collected in the steel pipe 403 for easy cleaning. By elastically installing a pressure plate 301 on the lower end face of the punching cutter 302 in the punching device 3, and installing a chip removal rod 303 fixedly connected to the pressure plate 301 in the blade body of the punching cutter 302, not only can the pressure plate 301 provide buffering, but it can also press against and tighten the outer surface of the composite paper can 6 to prevent the punching cutter 302 from pulling the edge of the hole when it retracts, thus preventing tearing of the hole edge. At the same time, the chip removal rod 303 can clean the inside of the blade body 310 at any time to prevent paper scraps from getting stuck inside the blade body 310.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A punching device for composite paper cans, comprising a support frame (1), characterized in that, It also includes a punching base (4), which includes a steel pipe (403). The upper end of the steel pipe (403) is fixedly provided with a second abutting curved surface (401), and the lower end is installed with a bottom plug (404). The second abutting curved surface (401) is provided with a second cutting hole (402) that communicates with the steel pipe (403). The support frame (1) is fixedly provided with a hydraulic lifting rod (2). The lower end of the hydraulic lifting rod (2) is provided with a punching device (3). The punching base (4) is detachably installed on the support frame (1) through the steel pipe (403) and is located directly below the punching device (3). The punching device (3) is provided with a punching tool (302) for punching. The punching tool (302) can be punched into the second cutting hole (402) through the hydraulic lifting rod (2).

2. The punching device for composite paper cans according to claim 1, characterized in that, The support frame (1) includes a base (101), on which a support rod (102) is fixedly mounted. The side of the support rod (102) is provided with a first crossbar (103) and a second crossbar (105) of equal length from top to bottom. A fixing hole (104) is provided at the end of the first crossbar (103) away from the support rod (102), and the hydraulic lifting rod (2) is fixedly installed in the fixing hole (104). A mounting buckle (106) is provided at the end of the second crossbar (105) away from the support rod (102). The mounting buckle (106) is an annular structure with one open end. A locking bolt (107) is provided at the open end of the mounting buckle (106). The position of the steel pipe (403) is detachably clamped in the mounting buckle (106) by the locking bolt (107).

3. The punching device for composite paper cans according to claim 2, characterized in that, In addition, a limiting plate (5) is included. The limiting plate (5) is fitted on the body of the second crossbar (105). A limiting bolt (501) is provided on the limiting plate (5). The limiting plate (5) can be adjusted on the second crossbar (105) by the limiting bolt (501).

4. The punching device for composite paper cans according to claim 1, characterized in that, The punching device (3) also includes a pressure plate (301), a chip removal rod (303), and a connecting seat (304); the lower end of the pressure plate (301) is provided with a first abutting curved surface (305) that is adapted to the outer surface of the composite paper can (6), and a plurality of fixing rods (307) are arranged sequentially along its circumference at the upper end; the middle part of the pressure plate (301) is provided with a first cutting hole (306).

5. A punching device for composite paper cans according to claim 4, characterized in that, The punching tool (302) includes a mounting plate (309) and a tool body (310). The upper end of the tool body (310) is fixedly provided with the mounting plate (309). The mounting plate (309) is elastically mounted on the fixing rod (307). The tool body (310) is movably inserted into the first tool hole (306).

6. A punching device for composite paper cans according to claim 5, characterized in that, The cutter body (310) is a hollow tubular structure, and a chip removal rod (303) is movably inserted inside. The upper end of the chip removal rod (303) is provided with an extension rod (311) corresponding to the position of the fixed rod (307). The chip removal rod (303) is detachably connected to the upper end of the fixed rod (307) through the extension rod (311). The upper end of the connecting seat (304) is connected to the hydraulic lifting rod (2), and the lower end is connected to the mounting plate (309), and does not interfere with the fixed rod (307).

7. A punching device for composite paper cans according to claim 6, characterized in that, The pressure plate (301) also includes a spring (308), the fixing rod (307) is fitted with the spring (308), and the mounting plate (309) is elastically mounted on the fixing rod (307) by the spring (308).

8. A punching device for composite paper cans according to claim 6, characterized in that, The extension rod (311) is provided with mounting bolts (312) at the positions corresponding to the fixed rod (307), and the extension rod (311) can be detachably installed on the upper end face of the fixed rod (307) by means of the mounting bolts (312).

9. A punching device for composite paper cans according to claim 1, characterized in that, The inner diameter of the steel pipe (403) is larger than that of the second cutting hole (402), and the bottom plug (404) is made of rubber.

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