Paper-plastic composite bag back cover detection and classification device

Abstract

In order to overcome the defects in the prior art, the utility model provides the bottom sealing detection and classification device for the paper-plastic composite bags, which can detect the bottom sealing quality of the paper-plastic composite bags by a vacuum expansion method and can automatically sort the paper-plastic composite bags, and the bottom sealing detection and classification device for the paper-plastic composite bags comprises an opening rolling conveying belt, a transmission motor is further arranged on the mouth rolling conveying belt, a vacuum detection machine is arranged on one side of the mouth rolling conveying belt, the upper half part of the vacuum detection machine is a vacuum detection chamber, a partition plate is arranged below the vacuum detection chamber, and an air compressor is arranged below the partition plate; notches are formed in the side, the left side and the right side of the vacuum detection machine close to the rolling conveying belt, the rolling conveying belt conveys the paper-plastic composite bags through the notches, a sealing clamp is further arranged on the inner wall of the side, close to the rolling conveying belt, of the vacuum detection machine, and movable sealing doors are arranged on the two sides of the sealing clamp. A paper-plastic composite bag sorting device is further arranged on the right side of the vacuum detection machine.

Description

Technical Field

[0001] The utility model belongs to the field of production and processing of paper-plastic composite bags, in particular to a paper-plastic composite bag bottom seal detection and classification device. Background Art

[0002] Paper-plastic composite bags occupy an important position in the modern packaging industry. Their unique environmental performance and practicality make them widely used in many fields such as food, medicine, and chemical industry. However, the quality of the bottom seal of paper-plastic composite bags has always been a pain point in the industry. The quality of the bottom seal directly affects the sealing performance and carrying capacity of the paper-plastic composite bag, which in turn is related to product safety and packaging effects. With the improvement of consumers' requirements for product quality and the intensification of market competition, manufacturers are in urgent need of a testing equipment that can ensure the stability of the bottom seal quality and improve production efficiency. Under such a technical background, the research and development of the bottom seal detection and classification device of paper-plastic composite bags is particularly important. It can help companies improve product quality and reduce scrap rate through automated detection and classification of bottom seal quality, thereby maintaining their advantages in the fierce market competition.

[0003] A Chinese utility model with publication number CN209945665U proposes a detection device for paper-plastic composite bags, which includes a U-shaped bracket, two parallel pressure strips are arranged inside the U-shaped bracket, the two pressure strips are fixedly connected to the inner wall of the U-shaped bracket by an electric push rod on the side away from each other, a telescopic tube is fixedly sleeved on one side of the U-shaped bracket, and an air intake pipe is sealed and slidably sleeved on the inner wall of the telescopic tube, and semicircular grooves are opened on the side where the two pressure strips are close to each other. When the two pressure strips are in contact, the two semicircular grooves form a circle, and the circle matches the air intake pipe. The utility model can fix and seal the mouth of the paper-plastic composite bag, and detect whether there are defects and loopholes at the connection or bonding of the paper-plastic composite bag by inflating the inside of the paper-plastic composite bag.

[0004] Although the above-mentioned detection device for paper-plastic composite bags is easy to operate and has obvious detection effect, the paper-plastic composite bags are prone to wrinkles during operation, and sorting still requires manual operation, which has high labor costs. Utility Model Content

[0005] The design purpose of the utility model is to address the deficiencies of the prior art and propose a paper-plastic composite bag bottom seal detection and classification device that can detect the quality of the paper-plastic composite bag bottom seal by vacuum expansion method and can automatically sort the paper-plastic composite bag bottom seal:

[0006] A paper-plastic composite bag bottom seal detection and classification device comprises a nip conveyor belt, the nip conveyor belt is a double-layer design, a transmission motor is further arranged on the nip conveyor belt, a vacuum detector is arranged on one side of the nip conveyor belt, the upper half of the vacuum detector is a vacuum detection chamber, a partition is arranged below the vacuum detection chamber, an air compressor is arranged below the partition, the vacuum detector is provided with slots on one side close to the nip conveyor belt and on both left and right sides, the nip conveyor belt transports the paper-plastic composite bag through the slots, the vacuum detector is further provided with a sealing clamp on the inner wall close to the nip conveyor belt side, movable sealing doors are arranged on both sides of the sealing clamp, and a paper-plastic composite bag classification device is further arranged on the right side of the vacuum detector.

[0007] As a preferred embodiment, an observation window is also provided at the front end of the vacuum detector.

[0008] As a preferred embodiment, arc-shaped auxiliary baffles are provided on the left sides of the notches on both sides of the vacuum detection machine, and a parallel baffle is additionally provided between the right side of the right notch and the paper-plastic composite bag classification device.

[0009] As a preferred embodiment, the sealing fixture comprises hydraulic telescopic rods symmetrically arranged above and below the notch on one side close to the nip conveyor belt, and a rubber sealing block is arranged on the hydraulic telescopic rod.

[0010] As a preferred embodiment, the paper-plastic composite bag classification device comprises a support frame, a support column a is arranged on one side of the support frame, a support column b is arranged on the other side, and a sorting plate is rotatably arranged on the support column a.

[0011] Preferably, a slide groove is provided on the pillar b, a rack is provided on the slide groove, a sliding gear rod is provided on the other side of the sorting plate to cooperate with the rack, and a motor is provided in the sliding gear rod to drive the gear to rotate.

[0012] The beneficial effects of the utility model are:

[0013] 1. Accurate detection: The traditional air blowing method mainly detects the sealing performance by blowing gas into the bag and judging the sealing performance of the bag based on the gas leakage. However, this method may be affected by factors such as the external environment, bag shape and material, resulting in inaccurate detection results. The vacuum expansion method designed in this utility model can more accurately simulate the negative pressure conditions that may be encountered in actual use, and detect the sealing performance of the bottom seal by creating a vacuum environment. This method can more accurately evaluate the reliability of the bottom seal and improve the accuracy of detection.

[0014] 2. Multifunctional design: The device not only has the detection function, but also includes the automatic sorting function. While detecting the quality of the bottom seal of the paper-plastic composite bag, it can automatically sort out the unqualified products. This greatly improves the production efficiency and product quality control level. In addition, the setting of the observation window allows the operator to observe the detection process intuitively, which is convenient for monitoring and adjusting the equipment. This multifunctional design meets the high requirements for quality control in the production process and improves the overall production efficiency.

[0015] 3. High degree of automation: The setting of paper-plastic composite bag classification device makes the whole detection and sorting process automatic. This highly automated design reduces manual intervention, reduces labor intensity, and reduces possible human errors. The use of components such as hydraulic telescopic rods and rubber sealing blocks makes the device easy to maintain and replace, reducing the maintenance cost in long-term use. At the same time, the high degree of automation is also conducive to reducing the floor space of the production line and improving the utilization of space.

[0016] In summary, this new type of paper-plastic composite bag bottom seal detection and classification device has obvious advantages in accurate detection, multifunctional design and degree of automation, and provides a more efficient and environmentally friendly solution for the paper-plastic composite bag production industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the bottom seal detection device of the paper-plastic composite bag;

[0018] Figure 2 It is a structural schematic diagram of a paper-plastic composite bag classification device;

[0019] Figure 3 for Figure 1 A magnified view of the structure;

[0020] Figure 4 It is a detailed structural diagram of a vacuum testing machine;

[0021] Figure 5 This is a schematic diagram of the working status of the paper-plastic composite bag classification device.

[0022] In the accompanying drawings, the components represented by each reference numeral are as follows: nip conveyor belt 1, transmission motor 11, vacuum detection machine 2, vacuum detection chamber 21, partition 22, air compressor 23, notch 24, observation window 25, arc-shaped auxiliary baffle 26, parallel baffle 27, sealing fixture 3, movable sealing door 31, hydraulic telescopic rod 32, rubber sealing block 33, paper-plastic composite bag sorting device 4, support frame 41, pillar a42, pillar b43, slide 431, rack 432, sorting plate 44, sliding gear rod 441. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings. Example 1

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] like Figures 1 to 5 As shown, a paper-plastic composite bag bottom seal detection and classification device comprises a nip conveyor belt 1, which is a double-layer design. A transmission motor 11 is also arranged on the nip conveyor belt 1. The nip conveyor belt 1 is the main transmission part of the device. The transmission motor 11 drives the conveyor belt to run and is used to transfer the paper-plastic composite bag to be detected; a vacuum detection machine 2 is arranged on one side of the nip conveyor belt 1, and the upper half of the vacuum detection machine 2 is a vacuum detection chamber 21, a partition 22 is arranged below the vacuum detection chamber 21, and an air compressor 23 is arranged below the partition 22. The vacuum detection machine 2 is used to detect whether the bottom seal of the paper-plastic composite bag is sealed. It consists of a vacuum detection chamber 21, and a partition 22 is arranged below the vacuum detection chamber 21 to isolate the detection chamber and the compressor 23. The air compressor 23 supplies An air supply source is used to compress the bag during the inspection process or provide necessary air pressure in other links; the vacuum inspection machine 2 is provided with slots 24 on one side and on both left and right sides close to the nip conveyor belt 1, which are located on the side wall of the vacuum inspection machine 2, and are used to allow the paper-plastic composite bag to pass smoothly and be placed in the vacuum inspection chamber 21; the vacuum inspection machine 2 is also provided with a sealing clamp 3 on the inner wall close to the nip conveyor belt 1, which is used to seal the bag mouth during the inspection process to ensure the vacuum effect; movable sealing doors 31 are provided on both sides of the sealing clamp 3, which can be opened and closed to facilitate the placement and removal of the bag, as well as sealing treatment; a paper-plastic composite bag classification device 4 is also provided on the right side of the vacuum inspection machine 2, which is used to classify the paper-plastic composite bags that have passed the inspection.

[0026] like Figure 1 As shown, an observation window 25 is also provided at the front end of the vacuum detection machine 2, through which the operator can observe the status of the bag in the vacuum detection chamber 21 in real time, including whether the bag is correctly placed, whether the vacuum extraction process proceeds smoothly, and the results of the bottom cover detection.

[0027] like Figure 4As shown, arc-shaped auxiliary baffles 26 are provided on the left side of the notches 24 on both sides of the vacuum detection machine 2, and a parallel baffle 27 is additionally provided between the right side of the notch 24 and the paper-plastic composite bag sorting device 4; the arc-shaped auxiliary baffles 26 are provided on the left side of the notches 24 on both sides of the vacuum detection machine 2, and the baffles are designed in an arc shape to help guide the bags into and out of the vacuum detection chamber 21. Since they are arc-shaped, they can reduce the friction of the bags during movement and help the bags pass through the detection area smoothly; the parallel baffles 27 are located on the right side of the notch 24 on the right side, between the paper-plastic composite bag sorting device 4. The function of the parallel baffles 27 is to ensure that the bags can be smoothly guided into the sorting device 4 after completing the vacuum detection, rather than slipping out of the machine or entering the wrong working area. It increases the control of the bags and ensures the accuracy of the sorting process.

[0028] like Figure 4 As shown, the sealing fixture 3 includes a hydraulic telescopic rod 32 symmetrically arranged above and below the notch 24 on one side of the nip conveyor belt 1, and a rubber sealing block 33 is arranged on the hydraulic telescopic rod 32. This design is to better seal the paper-plastic composite bag during the detection process to ensure the accuracy and effectiveness of the vacuum detection.

[0029] like Figure 2 As shown, the paper-plastic composite bag classification device 4 includes a support frame 41, which is the basic structure of the entire classification device, used to support other components and ensure the stability and reliability of the entire device; a support frame 41 is provided with a pillar a42 on one side and a pillar b43 on the other side, and these two pillars are respectively located on both sides of the support frame 41 to provide additional support and stability; a sorting plate 44 is rotatably provided on the pillar a42 for sorting the inspected paper-plastic composite bags.

[0030] like Figure 3 and Figure 5 As shown, a slide groove 431 is opened on the pillar b43, and a rack 432 is arranged on the slide groove 431. A sliding gear rod 441 is arranged on the other side of the sorting plate 44 to cooperate with the rack 432. A motor is arranged in the sliding gear rod 441 to drive the gear to rotate. The sliding gear rod 441 moves up and down in the slide groove 431 under the guidance of the rack 432. One end of the sliding gear rod 441 is connected to the sorting plate 44, so that the sorting plate 44 can move with the movement of the sliding gear rod 441 to sort good products and bad products.

[0031] Working process

[0032] The paper-plastic composite bag is fed into the device through the nip conveyor belt 1, and the bottom seal detection is performed on the bag through the vacuum detection machine 2. During the detection process, the sealing fixture 3 of the vacuum detection machine 2 seals the bag through the rubber sealing block 33 on the hydraulic telescopic rod 32 to ensure the accuracy of the detection. The air compressor 23 under the detection chamber 21 provides vacuum power, and the partition 22 helps to maintain the vacuum state. After the detection is completed, the paper-plastic composite bag is sorted through the sorting plate 44, which is supported by the pillar a42 and the pillar b43, and driven by the slide 431 and the rack 432. The other side of the sorting plate 44 cooperates with the sliding gear rod 441, and the sliding gear rod 441 is provided with a motor, which drives the gear to rotate, thereby driving the sorting plate 44 to flip or move, and complete the classification of the bag. During the whole process, the observation window 25 can be used for the operator to monitor the detection process, and the arc-shaped auxiliary baffles 26 and parallel baffles 27 on both sides help to ensure the smooth operation of the bag and the accuracy of the classification.

[0033] In the description of the present invention, it is necessary to understand that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the invention.

[0034] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0035] The above description in conjunction with the accompanying drawings is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment. It should be pointed out that for those skilled in the art, various modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the scope of protection of the present invention and will not affect the effect and practicality of the implementation of the present invention.

Claims

1. A paper-plastic composite bag bottom seal detection and classification device, comprising a nip conveyor belt (1), the nip conveyor belt (1) being of a double-layer design, and a transmission motor (11) being further provided on the nip conveyor belt (1), characterized in that: A vacuum detector (2) is arranged on one side of the nip conveyor belt (1); the upper part of the vacuum detector (2) is a vacuum detection chamber (21); a partition (22) is arranged below the vacuum detection chamber (21); an air compressor (23) is arranged below the partition (22); the vacuum detector (2) is provided with slots (24) on one side close to the nip conveyor belt (1) and on both left and right sides; the nip conveyor belt (1) transports the paper-plastic composite bag through the slots (24); a sealing fixture (3) is also arranged on the inner wall of the vacuum detector (2) on the side close to the nip conveyor belt (1); movable sealing doors (31) are arranged on both sides of the sealing fixture (3); and a paper-plastic composite bag sorting device (4) is also arranged on the right side of the vacuum detector (2).

2. A paper-plastic composite bag bottom seal detection and classification device according to claim 1, characterized in that: The front end of the vacuum detection machine (2) is also provided with an observation window (25).

3. The device for detecting and classifying the bottom seal of a paper-plastic composite bag according to claim 1, characterized in that: Arc-shaped auxiliary baffles (26) are provided on the left sides of the notches (24) on both sides of the vacuum detection machine (2), and a parallel baffle (27) is additionally provided between the right side of the right notch (24) and the paper-plastic composite bag classification device (4).

4. The device for detecting and classifying the bottom seal of a paper-plastic composite bag according to claim 1, characterized in that: The sealing fixture (3) comprises a hydraulic telescopic rod (32) symmetrically arranged above and below a notch (24) on one side close to the nip conveyor belt (1), and a rubber sealing block (33) is arranged on the hydraulic telescopic rod (32).

5. The device for detecting and classifying the bottom seal of a paper-plastic composite bag according to claim 1, characterized in that: The paper-plastic composite bag classification device (4) comprises a support frame (41), one side of the support frame (41) is provided with a support a (42), and the other side of the support frame (41) is provided with a support b (43), and a sorting plate (44) is rotatably provided on the support a (42).

6. The device for detecting and classifying the bottom seal of a paper-plastic composite bag according to claim 5, characterized in that: The support b (43) is provided with a slide groove (431), the slide groove (431) is provided with a rack (432), the other side of the sorting plate (44) is provided with a sliding gear rod (441) in coordination with the rack (432), and the sliding gear rod (441) is provided with a motor to drive the gear to rotate.

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