Automatic puncturing and exhausting device for packaging bag

Abstract

The utility model relates to the field of food packaging, and particularly discloses an automatic puncturing and exhausting device for a packaging bag. The automatic puncturing and exhausting device comprises a machine body, two driving rollers rotationally installed on the inner side of the machine body and a puncturing assembly installed on the inner side of the machine body, a positioning frame is fixedly connected to the upper end of the machine body, two guide rollers are rotationally connected to the inner side of the positioning frame, and the puncturing assembly comprises a roller and a movable block. The inner side of the machine body is rotationally connected with a transmission piece used for driving the roller to rotate, the inner wall of the roller is provided with a sliding groove used for sliding of the movable block, the outer side of the movable block is provided with a plurality of needle point parts protruding out of the roller, and the needle point parts are used for puncturing packaging bags. According to the device, puncturing and exhausting can be automatically conducted in the packaging bag conveying process, so that the situation that the packaging bag expands and swells when wrapping food is prevented, meanwhile, damage to a vacuum bag is avoided, and therefore the practicability of the device and the food packaging quality are improved.

Description

Technical Field

[0001] This application relates to the field of food packaging, and in particular to an automatic puncture and venting device for packaging bags. Background Technology

[0002] Packaging bags are crucial in the storage, transportation, and sale of food and other products. For meat products, vacuum packaging is typically used first to extend shelf life and maintain quality, followed by secondary packaging to enhance the product's appearance and attract consumer attention. Venting devices effectively remove excess gas from the bag, preventing packaging expansion and protecting against damage or unstable stacking during transport, thereby improving transportation efficiency and product safety.

[0003] In the prior art, when the puncture venting device vents air from the packaging bag, the tip of its needle may puncture the vacuum bag inside the packaging bag at the same time, which may affect the shelf life and quality of the food, and thus affect the practicality of the puncture venting device. Utility Model Content

[0004] In order to reduce the occurrence of puncturing vacuum bags when puncturing packaging bags and improve the practicality of puncture venting devices, this application provides an automatic puncture venting device for packaging bags.

[0005] The automatic puncture and air release device for packaging bags provided in this application adopts the following technical solution:

[0006] An automatic puncture and venting device for packaging bags includes a body, two drive rollers rotatably mounted inside the body, and a puncture assembly mounted inside the body. A positioning frame is fixedly connected to the upper end of the body, and two guide rollers are rotatably connected to the inner side of the positioning frame. The puncture assembly includes a roller and a movable block. A transmission component for driving the roller to rotate is rotatably connected to the inner side of the body. A groove is provided on the inner wall of the roller for the movable block to slide. Multiple needle tips protruding from the roller are provided on the outer side of the movable block, and the needle tips are used to puncture the packaging bag.

[0007] By adopting the above technical solution, the packaging bag can be automatically punctured during the transportation process. This not only prevents the packaging bag from expanding and bulging when wrapping food, but also prevents damage to the vacuum bag wrapping the food. This improves the practicality of the puncture and exhaust device and meets the needs of food production and packaging.

[0008] Optionally, an electric push rod is fixedly connected to one side of the inner wall of the slide groove, and one end of the piston rod of the electric push rod is fixedly connected to one side of the movable block.

[0009] By adopting the above technical solution, the stability of the moving block can be guaranteed, the position of the needle tip can be easily adjusted, and it can have good flexibility and controllability, thus adapting to the puncture work of packaging bags of different sizes.

[0010] Optionally, the outer wall of the movable block is fixedly connected with a plurality of positioning blocks for mounting a plurality of needle tips, and the outer side of the roller is provided with a plurality of opening slots for the positioning blocks to slide, and the opening slots are connected to the sliding grooves.

[0011] By adopting the above technical solution, the needle tip can be firmly installed on the movable block and can slide along the inner wall of the opening groove with the positioning block. This not only ensures the stability of the needle tip but also facilitates the maintenance and replacement of the needle tip.

[0012] Optionally, the inner wall of the slide is fixedly connected with a plurality of limiting rods, and the outer side of the movable block is provided with a limiting groove that is slidably connected to the outer side of the limiting rods.

[0013] By adopting the above technical solution, it is possible to prevent the movable block from shifting or shaking during movement, ensuring the precise positioning of the needle tip during the puncture process, thereby improving the reliability of the device and the accuracy of puncture, and extending the service life of the structure.

[0014] Optionally, two transmission components are provided, with one end of each transmission component rotatably connected to the inner wall of one side of the machine body, and one of the transmission components is driven to rotate by a motor on one side of the machine body.

[0015] By adopting the above technical solution, the stability of the roller rotation can be guaranteed, and the roller can be replaced as needed, thereby meeting the puncture requirements of packaging bags of different specifications.

[0016] Optionally, slots are provided on adjacent sides of the two transmission components, and inserts are connected to the inner walls of the slots. One side of each insert is fixedly connected to one end of the roller, and fasteners for fixing the inserts are connected to the inner walls of the transmission components.

[0017] By adopting the above technical solution, the stability of the connection between the roller and the transmission component can be guaranteed, the roller can be disassembled and replaced easily, and the operation can be convenient, thereby improving the practicality of the device.

[0018] Optionally, a fixed roller is provided on one side of the drive roller, both ends of which are fixedly connected to the machine body, and a sensor for detecting the packaging bag is installed on the outside of the fixed roller.

[0019] By adopting the above technical solution, the position and status of the packaging bag can be detected in real time. This not only ensures that the packaging bag is punctured in the correct position, but also detects whether the packaging bag is damaged, thereby improving the practicality of the device and the packaging effect on food.

[0020] Optionally, a transmission roller is provided on the other side of the drive roller, and both ends of the transmission roller are rotatably connected to the inner walls of both sides of the machine body.

[0021] By adopting the above technical solution, the packaging bag can be guided to move smoothly out of the machine body, ensuring that the packaging bag can be discharged in an orderly manner after being punctured. This reduces the bending of the packaging bag during the conveying process of the drive roller, thereby improving the subsequent packaging effect of the packaging bag.

[0022] In summary, this application has the following beneficial effects:

[0023] 1. This application can automatically puncture and vent air during the packaging bag conveying process, effectively preventing the packaging bag from expanding and bulging when wrapping food, while avoiding damage to the vacuum bag, thereby improving the practicality of the device and the quality of food packaging.

[0024] 2. This application allows for flexible adjustment of the needle tip position to adapt to the puncture requirements of packaging bags of different sizes, while also facilitating maintenance and replacement of the needle tip, thereby improving the applicability and ease of operation of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the body according to an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the drive roller and puncture assembly according to an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the puncture assembly and transmission component according to an embodiment of this application;

[0028] Figure 4 yes Figure 3 sectional view along line AA;

[0029] Figure 5 yes Figure 3 Schematic diagram of cross section along line BB.

[0030] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. Drive roller; 3. Puncture assembly; 31. Roller; 311. Slide groove; 312. Electric push rod; 313. Opening groove; 314. Limiting rod; 32. Movable block; 321. Positioning block; 322. Needle tip; 323. Limiting groove; 33. Insertion block; 4. Positioning frame; 41. Guide roller; 5. Transmission component; 51. Slot; 52. Fastener; 6. Fixed roller; 7. Sensor; 8. Transmission roller. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses an automatic puncture and exhaust device for packaging bags.

[0033] Reference Figure 1 The automatic puncture and venting device for packaging bags includes a body 1 installed in the packaging bag conveying mechanism, two drive rollers 2 rotatably mounted inside the body 1, and a puncture assembly 3 installed inside the body 1. The drive rollers 2 drive the packaging bags to move along the inner wall of the body 1, and the puncture assembly 3 punctures the packaging bags. Both ends of the body 1 are rotatably connected to transmission components 5 for mounting the puncture assembly 3, and a motor is installed on one side of the body 1 to drive the transmission components 5 and the drive rollers 2, so that the transmission components 5 and the drive rollers 2 rotate synchronously. In use, the packaging bags are conveyed inside the body 1 by the drive rollers 2 and punctured by the puncture assembly 3, thereby preventing bulging during subsequent food packaging.

[0034] Reference Figure 1 , Figure 2 A positioning frame 4 is fixedly connected to the upper side of the machine body 1. Two guide rollers 41 are rotatably connected between the positioning frames 4 to guide the conveying of the packaging bags, ensuring the stability of the packaging bags when they come into contact with the puncturing component 3 and improving the puncturing effect. A transmission rod 8 is rotatably connected to the lower end of the machine body 1. The transmission rollers 8 are used to ensure the stability of the packaging bags when they are conveyed out of the machine body 1, reducing the occurrence of misalignment or wrinkles in the packaging bags during subsequent processing, thereby improving the packaging effect of food.

[0035] refer to Figure 1 , Figure 2 A fixed roller 6 is fixedly connected to the lower end of the machine body 1 on the side opposite to the transmission roller 8. The fixed roller 6 is used to ensure the stability of the connection between the two sides of the machine body 1. A sensor 7 is installed on the outer side of the fixed roller 6. The lower end of the sensor 7 is fixedly connected to a buckle for locking onto a fixed rod, which ensures the stability of the sensor 7 and facilitates the adjustment of the position of the sensor 7. The sensor 7 is used to detect the location of the puncture in the packaging bag and to detect the quantity and quality of the packaging bags.

[0036] refer to Figure 3, Figure 4 and Figure 5 The puncture assembly 3 includes a roller 31 installed between two transmission components 5. A groove 311 is formed on the inner wall of one end of the roller 31, and a movable block 32 is slidably connected to the inner wall of the groove 311. The groove 311 allows the movable block 32 to slide. Multiple positioning blocks 321 arranged in a circular array are fixedly connected to the outer side of the movable block 32. Multiple opening slots 313 are formed on the outer side of the roller 31 for the positioning blocks 321 to slide, and all the opening slots 313 communicate with the groove 311. In this application, the number of positioning blocks 321 is four. In other embodiments, the number of positioning blocks 321 can be one, two, three, or more. A needle tip 322 is fixedly installed in the middle of each positioning block 321, and the tip of the needle tip 322 protrudes from the roller 31 for puncturing the packaging bag. An electric push rod 312 is fixedly connected to one inner wall of the slide groove 311, and one end of the piston rod of the electric push rod 312 is fixedly connected to one side of the movable block 32. The electric push rod 312 is used to push the movable block 32 to slide along the inner wall of the slide groove 311, thereby adjusting the position of the needle tip 322. A plurality of limiting rods 314 are fixedly connected to the inner wall of the slide groove 311, and a plurality of limiting grooves 323 are provided on the outer side of the movable block 32 to slide in connection with the outer wall of the limiting rods 314, so as to ensure the stability of the sliding of the movable block 32 and the synchronicity of the rotation of the movable block 32 and the roller 31.

[0037] In use, the extension and retraction of the electric push rod 312 can drive the movable block 32 to slide on the inner wall of the slide groove 311, and the positioning block 321 and the needle tip 322 to slide on the inner wall of the opening groove 313, so that the position of the needle tip 322 can be quickly adjusted.

[0038] refer to Figure 3 , Figure 5 Both ends of the roller 31 are fixedly connected to insert blocks 33. One side of the transmission component 5 has a slot 51 for inserting the insert blocks 33, improving the ease of installation of the roller 31. A fastener 52, which passes through the inner wall of the insert block 33, is fixedly installed in the middle of the transmission component 5, and the fastener 52 is used to fix the insert block 33 to the inner wall of the slot 51. In this application, the fastener 52 is a bolt; in other embodiments, the fastener 52 can also be a snap-fit, screw, or other types. In use, firstly, the roller 31 is moved to insert the insert block 33 into the inner wall of the slot 51; then, the fastener 52 is screwed through the insert block 33 and turned into the inner wall of the other side of the transmission component 5, thereby fixing the insert block 33 to the inner wall of the slot 51, completing the installation of the roller 31. When it is necessary to replace the roller 31, firstly, loosen the fastener 52 to disengage it from the insert 33; then, move the roller 31 to bring the insert 33 away from the slot 51, and repeat the above steps to install the new roller 31 between the two transmission components 5 to complete the replacement of the roller 31.

[0039] The implementation principle of the automatic puncture and venting device for packaging bags in this embodiment is as follows: In use, the packaging bag is first passed through the machine body 1 and wrapped between two guide rollers 41, roller 31, two drive rollers 2, and on the outside of the transmission roller 8. Then, the motor on one side of the machine body 1 drives the transmission component 5 to rotate synchronously with the roller 31 and the two drive rollers 2, completing the conveying of the packaging bag. During the rotation of the roller 31, multiple needle tips 322 on its outer side puncture the packaging bag, ensuring that the distance between the punctured holes is the same, thus facilitating the venting of the packaging bag and meeting subsequent usage requirements. The extension and retraction of the electric push rod 312 can drive the movable block 32 to slide on the inner wall of the slide groove 311, thereby adjusting the position of the needle tips 322 and enabling puncture treatment of packaging bags of different sizes.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic puncture and venting device for packaging bags, comprising a body (1), two drive rollers (2) rotatably mounted inside the body (1), and a puncture assembly (3) mounted inside the body (1), characterized in that: The upper end of the machine body (1) is fixedly connected to a positioning frame (4). The inner side of the positioning frame (4) is rotatably connected to two guide rollers (41). The piercing assembly (3) includes a roller (31) and a movable block (32). The inner side of the machine body (1) is rotatably connected to a transmission component (5) for driving the roller (2) to rotate. The inner wall of the roller (31) is provided with a sliding groove (311) for the movable block (32) to slide. The outer side of the movable block (32) is provided with multiple needle tips (322) protruding from the roller (31), and the needle tips (322) are used to pierce the packaging bag.

2. The automatic puncture and venting device for packaging bags according to claim 1, characterized in that: An electric push rod (312) is fixedly connected to one side of the inner wall of the slide (311), and one end of the piston rod of the electric push rod (312) is fixedly connected to one side of the movable block (32).

3. The automatic puncture and venting device for packaging bags according to claim 1, characterized in that: The outer wall of the movable block (32) is fixedly connected with a plurality of positioning blocks (321) for mounting a plurality of needle tips (322). The outer side of the roller (31) is provided with a plurality of opening slots (313) for sliding of the positioning blocks (321), and the opening slots (313) are connected to the sliding grooves (311).

4. The automatic puncture and venting device for packaging bags according to claim 1, characterized in that: The inner wall of the slide (311) is fixedly connected with a plurality of limiting rods (314), and the outer side of the movable block (32) is provided with a limiting groove (323) that is slidably connected to the outer side of the limiting rods (314).

5. The automatic puncture and venting device for packaging bags according to claim 1, characterized in that: Two transmission components (5) are provided. One end of each transmission component (5) is rotatably connected to the inner wall of one side of the machine body (1). One of the transmission components (5) is driven to rotate by a motor on one side of the machine body (1).

6. The automatic puncture and venting device for packaging bags according to claim 5, characterized in that: Each of the two transmission components (5) has a slot (51) on one side of each adjacent side. The inner wall of the slot (51) is connected to a plug (33). One side of the plug (33) is fixedly connected to one end of the roller (31). The inner wall of the transmission component (5) is connected to a fastener (52) for fixing the plug (33).

7. The automatic puncture and venting device for packaging bags according to claim 1, characterized in that: A fixed roller (6) is provided on one side of the drive roller (2). Both ends of the fixed roller (6) are fixedly connected to the machine body (1). A sensor (7) for detecting packaging bags is installed on the outside of the fixed roller (6).

8. The automatic puncture and venting device for packaging bags according to claim 1, characterized in that: A transmission roller (8) is provided on the other side of the drive roller (2), and both ends of the transmission roller (8) are rotatably connected to the inner walls of both sides of the machine body (1).

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