A cotton packaging film puncture test device

Abstract

The present invention relates to a cotton packing film puncture test device applied to the technical field of packing film detection equipment, comprising a device table, a film coating cylinder, packing film, a puncture module, a lifting cylinder, a bottom tray, a cotton pad bag, an upper pressure groove, a lower pressure groove and a pressing module. The present invention first fixes the packing film on the film coating cylinder, and the lifting cylinder pushes the bottom tray to rise, so that the cotton pad bag simulates the packed cotton to be close to the packing film, and then uses the puncture module to perform a puncture test on the packing film, effectively restores the use scene of the packing film, and effectively improves the accuracy of the puncture test data. The pressing module on the upper pressure groove and the lower pressure groove is used to locally press and fix the packing film, and the force distribution of the packing film is changed, thereby increasing the variables of the packing film puncture test, effectively improving the diversity of the test data, providing more data support for the puncture test of the packing film, and then effectively improving the validity of the packing film puncture test result.

Description

Technical Field

[0001] The invention relates to a puncture test device, in particular to a cotton packaging film puncture test device applied in the technical field of packaging film detection equipment. Background Art

[0002] Currently, automated cotton pickers can collect and pack cotton when working. Cotton packing film is used to wind and pack the collected cotton. Cotton packing film is mostly made of polyolefin polymers and is prepared by multi-layer co-extrusion blown film process. When inspecting the production of cotton packing film, it is necessary to perform a puncture test on the cotton packing film to detect the film's anti-puncture ability.

[0003] The specification of Chinese invention patent CN202223042872.3 discloses "A cotton packaging film puncture test machine". Through the automatic lifting of the pressure ring, the operation time of the staff is reduced, the work efficiency of the cotton packaging film puncture test is improved, and a better user experience is obtained. Through the matching relationship between the pressure ring and the base, the circumference of the sample can be compressed, so that the cotton packaging film is subjected to uniform force during the puncture test, avoiding the deviation of the film and affecting the accuracy of the experiment.

[0004] Currently, most of the puncture test equipment for packaging films and the test machine of the above-mentioned patent have simple structures and can only perform a single packaging film puncture test, and cannot restore the usage scenario of the packaging film. In addition, the fixing method of the packaging film is simple, and the local variables of the fixing of the packaging film cannot be adjusted, which affects the diversity of the packaging film puncture test data. A single experimental data is not sufficient to support the packaging film puncture test results. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the use scenario of the packaging film is not sufficiently restored, and the fixing method of the packaging film is simple. The fixing of the packaging film cannot be adjusted by local variables, which affects the diversity of the packaging film puncture test data and affects the puncture test results of the packaging film.

[0006] In order to solve the above problems, the present invention provides a cotton baling film puncture test device, comprising a device table, a film-covering cylinder is fixedly connected to the top of the device table, the upper opening of the film-covering cylinder is fixedly covered with a baling film, a lift is fixedly connected to the back of the device table, a puncture module is fixedly connected to the movable end of the lift, and the puncture module corresponds vertically to the film-covering cylinder;

[0007] The bottom of the laminating cylinder is fixedly connected to a lifting cylinder, the output end of the lifting cylinder is fixedly connected to a bottom tray, the top of the bottom tray is fixedly connected to a cotton pad, the cotton pad is in contact with the lower surface of the packaging film, the bottom end of the elevator is fixedly connected to a rotating frame, the middle part of the rotating frame is rotatably connected to a selection pressure plate, the selection pressure plate is vertically corresponding to the laminating cylinder, the inner ring of the selection pressure plate is annularly fixed with upper pressure grooves, the outer ring top of the bottom tray is fixedly connected to a lower pressure groove, the upper and lower pressure grooves are slidably connected to the inside of the pressing modules, and the two sets of pressing modules vertically clamp the corresponding packaging film.

[0008] In the cotton packaging film puncture test device, the packaging film on the coated cylinder is punctured by the puncture module, and the packaging film is locally pressed and fixed by the pressing modules on the upper and lower pressing grooves, thereby increasing the variables of the packaging film puncture test and effectively improving the diversity of the test data.

[0009] As a further improvement of the present application, a pressure ring cover is fixedly provided on the top outer ring of the coating cylinder, and the inner ring of the pressure ring cover corresponds to the edge of the packaging film. The pressure ring cover is used to tighten the edge of the packaging film, thereby effectively improving the stability of the packaging film attached to the coating cylinder.

[0010] As a further improvement of the present application, the pressure ring cover is composed of a plurality of pressure ring sheets, and two adjacent pressure ring sheets are connected by bolts. The purpose of tightening the pressure ring sheets is achieved by tightening the bolts, thereby realizing the pressure ring cover to tighten packaging films of different thicknesses.

[0011] As a further improvement of the present application, a groove is provided on the top outer ring of the cotton pad bag corresponding to the lower pressure groove, and the cotton pad bag is made of sponge material, so that the lower pressure groove can extend into the cotton pad bag through the groove, thereby effectively preventing the cotton pad bag from affecting the movement of the pressing module on the lower pressure groove.

[0012] As another improvement of the present application, filling balls are fixedly connected to both sides of the groove. The filling balls are made of cotton wool material. The filling balls are used to fill the interior of the groove, effectively reducing the impact of the vacancy in the groove on the deformation and buffering effect of the cotton pad bag.

[0013] As another improved supplement of the present application, the pressing module is composed of a nut sleeve and a stud which are threadedly connected. The nut sleeves are slidably connected to the upper pressure groove and the lower pressure groove. The contact end of the stud and the packaging film is fixedly connected with an end. The stud which is threadedly connected to the nut sleeve can be rotated to adjust the pressing effect of the end of the stud on the packaging film.

[0014] As another improvement supplement of the present application, a clamping groove is opened on the side of the upper pressure groove, and a clamping screw is slidably connected inside the clamping groove. The clamping screw is connected to the external thread of the nut sleeve. By tightening the clamping screw, the nut sleeve on the upper pressure groove is fixed, thereby effectively improving the stability of the pressure module.

[0015] As another improvement of the present application, a storage groove is opened in the middle of the end head, and a ball is rotatably connected to the middle of the storage groove. The ball is made of magnetic material, and the magnetic forces of the two vertically corresponding balls are arranged to attract each other. Through the adsorption of the two balls, the synchronous movement of the two ends is achieved, and the balls move in a rolling manner on the packaging film, effectively avoiding scratches and damages of the packaging film before the test.

[0016] As another improvement supplement to the present application, an ejection spring is fixedly connected to the inner end of the storage groove, and one end of the ejection spring is fixedly connected to a rolling cover. The rolling cover rolls with the rolling ball. When the end heads are pressed and fixed to each other, the ejection spring is compressed, so that the rolling ball automatically retracts into the storage groove, thereby allowing the end heads to directly press the packaging film.

[0017] As another improvement supplement of the present application, the outer ring of the mouth of the storage groove is fixedly connected with a close-fitting pad, which is made of wear-resistant rubber material. When the end head directly presses the packaging film, the close-fitting pad effectively improves the pressing effect of the end head on the packaging film.

[0018] To summarize, the present invention first fixes the packaging film on the film coating cylinder, and the lifting cylinder pushes the bottom tray up, so that the cotton pad package simulates the packaged cotton and is close to the packaging film, and then uses the puncture module to perform a puncture test on the packaging film, thereby effectively restoring the use scenario of the packaging film and effectively improving the accuracy of the puncture test data. At the same time, according to the use scenario of the packaging film, the packaging film is locally pressurized and fixed by the pressing modules on the upper and lower pressure grooves, and the force distribution of the packaging film is changed, thereby increasing the variables of the packaging film puncture test, effectively improving the diversity of the test data, and providing more data support for the puncture test of the packaging film, thereby effectively improving the validity of the packaging film puncture test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present application;

[0020] Figure 2 This is a three-dimensional structural diagram of the film-coated cylinder, packaging film and pressure ring cover of the first embodiment of the present application;

[0021] Figure 3 This is a three-dimensional structural diagram of a pressure ring cover according to the first embodiment of the present application;

[0022] Figure 4 This is a side cross-sectional view of a coating cylinder according to the first embodiment of the present application;

[0023] Figure 5 A three-dimensional structural diagram of a pressure plate selected for the first embodiment of the present application;

[0024] Figure 6 This is a three-dimensional structural diagram of the bottom tray and the cotton pad bag of the first embodiment of the present application;

[0025] Figure 7 This is the second implementation method of the present application Figure 5 A partial enlarged view of

[0026] Figure 8 This is a cross-sectional view of a pressure module according to a second embodiment of the present application;

[0027] Fig. 9 This is a demonstration diagram of the second embodiment of the present application where the pressing module clamps the packaging film;

[0028] Fig.10 This is a bottom-up stereoscopic structural diagram of the end of the second embodiment of the present application.

[0029] Description of the numbers in the figure:

[0030] 1. Installation table; 101. Laminating cylinder; 102. Lifting machine; 103. Lifting cylinder; 104. Bottom tray; 105. Cotton pad bag; 106. Rotating frame; 107. Selecting pressure plate; 108. Upper pressure groove; 109. Lower pressure groove; 110. Groove; 111. Filling wool ball; 2. Packing film; 3. Piercing module; 4. Compression module; 401. Nut sleeve; 402. Stud; 403. Pressing groove; 404. Pressing screw; 5. Pressing ring cover; 501. Pressing ring sheet; 6. End; 601. Storage groove; 602. Rolling ball; 603. Ejection spring; 604. Rolling cover; 605. Close-fitting pad. DETAILED DESCRIPTION

[0031] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0032] The first implementation method:

[0033] Figure 1-4As shown, it includes an apparatus table 1, the top of the apparatus table 1 is fixedly connected with a film coating cylinder 101, the upper opening of the film coating cylinder 101 is fixedly covered with a packaging film 2, the back of the apparatus table 1 is fixedly connected with a lifter 102, the movable end of the lifter 102 is fixedly connected with a puncture module 3, the puncture module 3 is vertically corresponding to the film coating cylinder 101, the bottom of the film coating cylinder 101 is fixedly connected with a lifting cylinder 103, the output end of the lifting cylinder 103 is fixedly connected with a bottom tray 104, the top of the bottom tray 104 is fixedly connected with a cotton pad 105, The cotton pad 105 contacts the lower surface of the packaging film 2, and a pressing ring cover 5 is fixedly sleeved on the top outer ring of the film-covering cylinder 101. The inner ring of the pressing ring cover 5 corresponds to the edge of the packaging film 2. The pressing ring cover 5 is used to tighten the edge of the packaging film 2, thereby effectively improving the stability of the packaging film 2 attached to the film-covering cylinder 101. The pressing ring cover 5 is composed of a plurality of pressing ring pieces 501, and two adjacent pressing ring pieces 501 are connected by bolts. The purpose of tightening the pressing ring pieces 501 is achieved by tightening the bolts, thereby realizing the tightening of the packaging films 2 of different thicknesses by the pressing ring cover 5;

[0034] When conducting a puncture test on the packaging film 2, the packaging film 2 is first fixedly covered on the film coating cylinder 101, and the two adjacent pressure ring pieces 501 are tightened by tightening the bolts to achieve the edge of the packaging film 2 being clamped by the pressure ring cover 5, thereby effectively improving the fixing stability of the packaging film 2. The lifting cylinder 103 pushes the bottom tray 104 to rise, allowing the cotton pad 105 to simulate the packaged cotton and cling to the packaging film 2, effectively restoring the use scenario of the packaging film 2, and then the puncture module 3 is used to perform a puncture test on the packaging film 2, thereby effectively improving the accuracy of the puncture test data.

[0035] Figure 1 and Figure 4-6 As shown, the bottom end of the elevator 102 is fixedly connected to a rotating frame 106, and the middle part of the rotating frame 106 is rotatably connected to a pressure plate 107, which corresponds vertically to the film-coating cylinder 101. The inner ring of the pressure plate 107 is annularly fixed with upper pressure grooves 108, and the top of the outer ring of the bottom tray 104 is fixedly connected to a lower pressure groove 109. The upper and lower pressure grooves 108 and 109 are both slidably connected to the inner parts of the pressing modules 4. The two groups of pressing modules 4 vertically clamp the corresponding packaging film 2, and the top outer ring of the cotton pad bag 105 is opposite. The pressing groove 109 is provided with a groove 110, and the cotton pad 105 is made of sponge material, so that the pressing groove 109 can be extended into the cotton pad 105 through the groove 110, effectively preventing the cotton pad 105 from affecting the movement of the pressing module 4 on the pressing groove 109. Both sides of the groove 110 are fixedly connected with filling balls 111, which are made of cotton wool material. The filling balls 111 are used to fill the inside of the groove 110, effectively reducing the deformation buffering effect of the cotton pad 105 affected by the vacancy of the groove 110;

[0036] Before the puncture module 3 descends to perform a puncture test on the packaging film 2, according to the usage scenario of the packaging film 2, local stress conditions are added to the packaging film 2 before puncture, the pressure plate 107 is rotated to the top of the coating cylinder 101, and the pressing module 4 on the upper pressing groove 108 and the lower pressing groove 109 is adjusted to locally press and fix the packaging film 2 to achieve that the area of ​​the packaging film 2 is in a fixed state, and then the puncture module 3 is performed on the packaging film 2. Since the force distribution of the packaging film 2 is broken by the clamping and fixation of the pressing module 4, the uneven force affects the puncture resistance of the packaging film 2. By increasing the variables of the puncture test of the packaging film 2, the diversity of the test data is effectively improved, and more data support is provided for the puncture test of the packaging film 2, thereby effectively improving the validity of the puncture test results of the packaging film 2.

[0037] The second implementation method:

[0038] Compared with the first embodiment, this embodiment specifically sets a pressure module 4, and the specific structure is as follows, and the remaining structure is consistent with the first embodiment.

[0039] Figure 5 and Figure 7 As shown, the pressing module 4 is composed of a nut sleeve 401 and a stud 402 that are threadedly connected. The nut sleeve 401 is slidably connected to the upper pressing groove 108 and the lower pressing groove 109. The stud 402 is fixedly connected to the contact end of the packaging film 2 with an end head 6. The stud 402 that is threadedly connected to the nut sleeve 401 is rotated to adjust the pressing effect of the end head 6 of the stud 402 on the packaging film 2. A pressing groove 403 is provided on the side of the upper pressing groove 108. A pressing screw 404 is slidably connected to the inside of the pressing groove 403. The pressing screw 404 is threadedly connected to the outside of the nut sleeve 401. By tightening the pressing screw 404, the nut sleeve 401 on the upper pressing groove 108 is fixed, thereby effectively improving the stability of the pressing module 4.

[0040] By pushing the pressing module 4 to slide on the upper pressing groove 108 and the lower pressing groove 109, the pressure position of the pressing module 4 on the packaging film 2 is adjusted, and then the tightening screw 404 is tightened to fix the nut sleeve 401 on the upper pressing groove 108, so as to fix the position of the pressing module 4 and effectively improve the stability of the pressing module 4. The screw 402 is rotated to adjust the upper and lower surfaces of the packaging film 2 using the end 6 to press and fix the packaging film 2, effectively improving the local fixing effect of the packaging film 2.

[0041] Figure 8-10As shown, a receiving groove 601 is provided in the middle of the end 6, and a rolling ball 602 is rotatably connected to the middle of the receiving groove 601. The rolling ball 602 is made of a magnetic material, and the magnetic force of the two vertically corresponding rolling balls 602 is arranged to attract each other. Through the adsorption of the two rolling balls 602, the synchronous movement of the two end heads 6 is realized, and the rolling balls 602 move in a rolling manner on the packaging film 2, which effectively avoids the packaging film 2 from being scratched and damaged before the test. The inner end of the receiving groove 601 is fixedly connected to an ejection spring 603, and the ejection spring 603 is fixedly connected to the inner end of the receiving groove 601. One end of 03 is fixedly connected with a rolling cover 604, and the rolling cover 604 rolls in correspondence with the rolling ball 602. When the end heads 6 are pressed and fixed to each other, the ejection spring 603 is compressed, so that the rolling ball 602 automatically retracts into the receiving groove 601, so that the end head 6 can directly press the packaging film 2. The outer ring of the mouth of the receiving groove 601 is fixedly connected with a close-fitting pad 605, which is made of wear-resistant rubber material. When the end head 6 directly presses the packaging film 2, the close-fitting pad 605 effectively improves the pressing effect of the end head 6 on the packaging film 2.

[0042] When pushing the end head 6 to slide on the upper pressing groove 108 and the lower pressing groove 109, the end head 6 rolls on the packaging film 2 through the ball 602 in the receiving groove 601. The end head 6 moves in a rolling manner, which effectively avoids the end head 6 from scratching and damaging the packaging film 2 at the front end of the test. When tightening the stud 402 later, the two end heads 6 gradually approach the packaging film 2, and the ejection spring 603 is compressed, so that the ball 602 is retracted into the receiving groove 601. At the same time, the close-fitting pad 605 is in close contact with the packaging film 2, which effectively improves the pressing effect of the end head 6 on the packaging film 2.

[0043] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A cotton packaging film puncture test device, characterized in that: The device comprises a device platform (1), the top of the device platform (1) is fixedly connected to a film coating cylinder (101), the upper opening of the film coating cylinder (101) is fixedly covered with a packaging film (2), the back of the device platform (1) is fixedly connected to an elevator (102), the movable end of the elevator (102) is fixedly connected to a puncture module (3), and the puncture module (3) is vertically corresponding to the film coating cylinder (101); The bottom of the film coating cylinder (101) is fixedly connected to a lifting cylinder (103), the output end of the lifting cylinder (103) is fixedly connected to a bottom tray (104), the top of the bottom tray (104) is fixedly connected to a cotton pad (105), the cotton pad (105) contacts the lower surface of the packaging film (2), the bottom end of the elevator (102) is fixedly connected to a rotating frame (106), the middle part of the rotating frame (106) is rotatably connected to a pressure plate (107), the pressure plate (107) is vertically corresponding to the film coating cylinder (101), the inner ring of the pressure plate (107) is annularly fixedly arranged with upper pressure grooves (108), the outer ring top of the bottom tray (104) is fixedly connected to a lower pressure groove (109), the upper pressure groove (108) and the lower pressure groove (109) are both slidably connected to the inner parts of the pressing modules (4), and the two groups of pressing modules (4) vertically clamp the corresponding packaging film (2); The pressing module (4) is composed of a nut sleeve (401) and a stud (402) connected by threads, the nut sleeve (401) is slidably connected to the upper pressing groove (108) and the lower pressing groove (109), and the stud (402) is fixedly connected to the contact end of the packaging film (2) with a terminal (6).

2. A cotton packaging film puncture test device according to claim 1, characterized in that: A pressing ring cover (5) is fixedly sleeved on the top outer ring of the film-covering cylinder (101), and the inner ring of the pressing ring cover (5) corresponds to the edge of the packaging film (2).

3. A cotton packaging film puncture test device according to claim 2, characterized in that: The pressure ring cover (5) is composed of a plurality of pressure ring sheets (501), and two adjacent pressure ring sheets (501) are connected by bolts.

4. A cotton packaging film puncture test device according to claim 1, characterized in that: A groove (110) is provided on the top outer ring of the sponge pad bag (105) corresponding to the lower pressing groove (109), and the sponge pad bag (105) is made of sponge material.

5. A cotton packaging film puncture test device according to claim 4, characterized in that: Both sides of the groove (110) are fixedly connected with filling flocks (111), and the filling flocks (111) are made of cotton wool material.

6. A cotton packaging film puncture test device according to claim 1, characterized in that: A clamping groove (403) is provided on the side of the upper clamping groove (108), a clamping screw (404) is slidably connected inside the clamping groove (403), and the clamping screw (404) is threadably connected to the outside of the nut sleeve (401).

7. A cotton packaging film puncture test device according to claim 1, characterized in that: A receiving groove (601) is provided in the middle of the end head (6), and a rolling ball (602) is rotatably connected to the middle of the receiving groove (601). The rolling ball (602) is made of a magnetic material, and the magnetic forces of two vertically corresponding rolling balls (602) are arranged to attract each other.

8. A cotton packaging film puncture test device according to claim 7, characterized in that: An ejection spring (603) is fixedly connected to the inner end of the storage groove (601), and one end of the ejection spring (603) is fixedly connected to a rolling cover (604), and the rolling cover (604) rolls in correspondence with the rolling ball (602).

9. A cotton packaging film puncture test device according to claim 7, characterized in that: The outer ring of the mouth of the storage groove (601) is fixedly connected with a close-fitting pad (605), and the close-fitting pad (605) is made of a wear-resistant rubber material.

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