Adjustable plastic packaging bag stretching detection device

Abstract

The invention relates to the technical field of packaging bag detection, and discloses an adjustable plastic packaging bag stretching detection device which comprises a detection table. The fixed clamp is fixedly arranged on one side of the top of the detection table and used for clamping one end of a packaging bag body; the movable clamp is arranged at the top of the detection table in a sliding manner, is used for clamping the other end of the packaging bag body and is driven by external force to trigger a stretching action; and the positioning assembly is arranged at the top of the detection table and is located between the fixed clamp and the movable clamp. The adjustable plastic packaging bag stretching detection device can effectively solve the problems that in the prior art, due to the fact that a clamp needs to be manually operated to clamp a plastic bag, the two ends of the plastic bag are prone to obvious deviation in the clamping process, and the stretching section of the plastic bag is uneven in stress in the stretching process; the stretching detection effect of the plastic bag is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of packaging bag detection, and in particular to an adjustable plastic packaging bag stretch detection device. Background Art

[0002] Plastic packaging bags are made of plastic as raw material and are widely used in daily life and industrial production. They are often used to package various supplies. Due to their low production cost, light weight, large capacity and easy storage, they have become an indispensable item in people's lives. After the plastic packaging bags are manufactured, they need to pass tensile performance testing to ensure their product quality. This is to ensure that the packaging bags will not break easily during actual use and can effectively protect the items inside.

[0003] In traditional plastic bag stretching testing, the two ends of the selected plastic bag test sample are connected to the stretching equipment, and the stretching equipment clamps the ends of the plastic bag through two clamps. Finally, the stretching equipment is started to drive the two clamps to move away from each other to stretch the plastic bag, so as to observe and judge the stretching capacity of the plastic bag. However, when clamping and fixing the two ends of the plastic with two clamps, it is often necessary to manually operate the clamps to clamp the plastic bag, which leads to obvious deviations at the two ends of the plastic bag when clamping (that is, the plastic bag is obviously not parallel to the stretching direction after clamping), resulting in uneven force on the stretching section of the plastic bag during the stretching process, affecting the stretching test effect of the plastic bag. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an adjustable stretching detection device for plastic packaging bags, which can effectively solve the problem in the prior art that manual operation of the clamps is often required to clamp the plastic bags, resulting in obvious deviations at both ends of the plastic bags when clamped, causing uneven force on the stretching section of the plastic bag during the stretching process, thereby affecting the stretching detection effect of the plastic bags.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides an adjustable plastic packaging bag stretch detection device, comprising: Testing bench; A fixed clamp, fixedly arranged on one side of the top of the testing platform, for clamping one end of the packaging bag body; A movable clamp is slidably disposed on the top of the detection platform, used for clamping the other end of the packaging bag body, and is driven by an external force to trigger a stretching action; A positioning assembly is arranged on the top of the testing table and is located between the fixed fixture and the movable fixture; Wherein, the positioning assembly includes a support plate, a sliding hole is symmetrically opened on the top of the support plate, a positioning plate is symmetrically slidably arranged on the top of the support plate along the sliding hole, and the two positioning plates are driven by external force to adjust the positioning distance.

[0006] Furthermore, the fixing fixture comprises: A fixed clamping platform, fixedly arranged on the top of the testing platform; A vertical plate is fixedly arranged on the top of the testing table and is located on a side of the fixed clamping table away from the moving clamp; The pressing plate A is movably arranged on the outer side of the vertical plate and is pressed against the top of the fixed clamping platform by an external force.

[0007] Furthermore, a clamping groove A is provided on the top of the fixed clamping platform, and a pressure strip A is fixedly provided on the bottom of the pressing plate A corresponding to the clamping groove A.

[0008] Furthermore, the movable clamp comprises: The gantry is driven by external force to slide on the top of the testing table to adapt to the testing of packaging bags of different lengths; The sliding table is fixedly arranged at the bottom of the door frame; The pressing plate B is movably arranged on the top of the door frame and is driven by external force to press against the top of the sliding platform to clamp the end of the packaging bag body.

[0009] Furthermore, a clamping groove B is provided at the bottom of the sliding platform, and a pressure strip B is fixedly provided at the bottom of the pressing plate B corresponding to the clamping groove B.

[0010] Furthermore, the dynamic clamp also includes a fan A, which is fixedly arranged at the bottom of the sliding platform; an air hole is opened on the inner side of the sliding platform, and the clamping groove B is connected to the air hole.

[0011] Furthermore, it also includes a fan B, which is fixedly arranged at the bottom of the testing platform, and an electric heater is fixedly arranged at the air outlet end of the fan B; An air outlet is provided on the inner side of the support plate, and a detection box is fixedly arranged on the top of the detection platform.

[0012] Furthermore, it also includes a recycling component, which includes a recycling box, which is fixedly arranged at the bottom of the testing table, and the top of the recycling box is fixedly connected to the air inlet end of the fan B. Pipe channels are fixedly arranged on both sides of the recycling box, and the other end of the pipe channel is fixedly arranged on both sides of the testing box, and corresponding fixed clamps and movable clamps are arranged.

[0013] Furthermore, a bottom hole is opened on one side of the tube channel, a box body is slidably arranged inside the bottom hole, and the box body is driven to slide by external force; wherein, an air inlet hole is opened at the bottom of the box body, and a side hole is opened on the side of the box body away from the fixed clamp.

[0014] Furthermore, a slide plate is slidably provided on the top of the fixed clamping platform, the slide plate is located inside the clamping groove A, and the slide plate slides under the action of elastic force; The air outlet direction of the clamping groove B is inclined upward and is arranged toward the tube channel on the corresponding side; The air outlet direction of the air outlet hole is inclined upward and is arranged toward the tube channel on the corresponding side.

[0015] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: (1) The present invention sets a positioning assembly to limit the packaging bag body to be tested, so that the two ends of the packaging bag body are limited by the two sliding holes and are parallel to the stretching direction before clamping, and then the two ends of the packaging bag body are clamped by the fixed clamp and the movable clamp on both sides of the positioning assembly respectively, so as to ensure that after the two ends of the packaging bag body are clamped, the force on the packaging bag body can be more uniform when the packaging bag body is tested in the stretching direction, so as to ensure the accuracy of the test result.

[0016] (2) The present invention provides two adjustable sliding holes, and the spacing between the sliding holes can be adjusted so that the positioning assembly can be suitable for packaging bag bodies of different widths for positioning work. In addition, a movable clamp is provided on one side of the positioning assembly, and the distance between the movable clamp and the fixed clamp can be adjusted by moving the movable clamp, so that the fixed clamp and the movable clamp can use packaging bag bodies of different lengths to achieve clamping action, thereby facilitating the stretching test of packaging bag bodies of different specifications.

[0017] (3) The present invention isolates the outside world by setting a test box on the top of the test table. Before the test, hot air is input into the test box through the fan B at the bottom of the test table, so that a test environment with different temperature conditions can be created inside the test box, so as to facilitate the test of the tensile properties of the packaging bag body under different temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure inside the detection box according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a detection platform according to an embodiment of the present invention; Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 It is a structural schematic diagram of a movable clamp and a positioning assembly according to an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a positioning component according to an embodiment of the present invention; Figure 7 It is a schematic structural diagram of a cross-section of a sliding platform according to an embodiment of the present invention; Figure 8 for Figure 7 Schematic diagram of the enlarged structure at B in the middle Fig. 9 This is a schematic structural diagram of a cross-section of a support plate according to an embodiment of the present invention; Fig.10 This is a schematic diagram of the structure of the explosion of the recovery component according to an embodiment of the present invention; Fig.11 This is a schematic diagram of the cross-sectional structure of the pipe channel of an embodiment of the present invention; Fig.12 for Fig.11 A schematic diagram of the enlarged structure at point C when the middle box body avoids the bottom hole; Fig.13 for Fig.11 Schematic diagram of the enlarged structure at point C when the middle box body blocks the bottom hole.

[0020] The reference numerals in the figure represent: 100, packaging bag body; 1. Test bench; 11. Top plate; 12. Bottom plate; 13. Slide rail; 14. Through hole; 15. Test box; 16. Glass door; 17. Display controller; 18. Temperature sensor; 19. Support leg; 2. Fixed fixture; 21. Fixed clamping platform; 211. Clamping groove A; 212. Slide plate; 22. Vertical plate; 23. Pressing plate A; 24. Pressing strip A; 25. Electric push rod A; 3. Moving fixture; 31. Door frame; 32. Sliding table; 321. Clamping groove B; 322. Air vent; 33. Pressing plate B; 34. Pressing strip B; 35. Electric push rod B; 36. Fan A; 37. Hydraulic push rod; 38. Pressure sensor; 4. Positioning assembly; 41. Support plate; 42. Slide hole; 43. Positioning plate; 44. Sliding block; 45. Driving plate; 46. Enclosure; 47. Bidirectional screw rod; 48. Air outlet; 5. Fan B; 51. Electric heater; 6. Recovery component; 61. Recovery box; 62. Recovery door; 63. Pipe channel; 631. Bottom hole; 64. Grid plate; 65. Box body; 651. Air inlet hole; 652. Side hole; 66. Electric push rod C; 67. Door panel. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present invention will be further described below in conjunction with the embodiments.

[0023] See also Figure 1-Figure 13 The present invention provides a technical solution: an adjustable plastic packaging bag stretch detection device, comprising: Testing station 1; A fixed clamp 2, fixedly disposed on one side of the top of the testing platform 1, for clamping one end of the packaging bag body 100; The movable clamp 3 is slidably disposed on the top of the testing platform 1, and is used to clamp the other end of the packaging bag body 100, and is driven by an external force to trigger a stretching action; The positioning assembly 4 is arranged on the top of the testing platform 1 and is located between the fixed fixture 2 and the movable fixture 3; The positioning assembly 4 includes a support plate 41 , a sliding hole 42 is symmetrically opened on the top of the support plate 41 , a positioning plate 43 is symmetrically slidably arranged on the top of the support plate 41 along the sliding hole 42 , and the two positioning plates 43 are driven by external force to adjust the positioning distance. Specifically, a surrounding plate 46 is fixedly provided at the bottom of the support plate 41, and a slider 44 is fixedly provided at the bottom of the positioning plate 43. The slider 44 is slidably provided on the inner side of the sliding hole 42. A driving plate 45 is fixedly provided at the bottom of each positioning plate 43 through the slider 44. The two driving plates 45 are symmetrically arranged on the outer side of the bidirectional screw rod 47. The bidirectional screw rod 47 is driven to rotate by a motor, and the bidirectional screw rod 47 is rotatably installed on the inner side of the surrounding plate 46; then, the bidirectional screw rod 47 driven by the motor to rotate can drive the driving plates 45 to approach or move away from each other, so that the driving plates 45 drive the sliding holes 42 along the positioning plates 43 through the slider 44, so that the two sliding holes 42 can adapt to packaging bag bodies 100 of different widths by adjusting the spacing, and the sliding holes 42 are parallel to the stretching directions of the fixed clamp 2 and the movable clamp 3, so that when the packaging bag body 100 is loaded, the two ends of the packaging bag body 100 are respectively positioned and aligned with the fixed clamp 2 and the movable clamp 3 through the sliding holes 42 to ensure the stretching detection accuracy.

[0024] The fixed fixture 2 comprises: A fixed clamping platform 21 is fixedly arranged on the top of the testing platform 1; The vertical plate 22 is fixedly arranged on the top of the testing platform 1 and is located on a side of the fixed clamping platform 21 away from the movable clamp 3; The pressing plate A23 is movably arranged outside the vertical plate 22 and is pressed against the top of the fixed clamping platform 21 by external force. In order to ensure the clamping effect on the packaging bag body 100, a clamping groove A211 is provided on the top of the fixed clamping platform 21, and a pressure strip A24 is fixedly arranged at the bottom of the pressing plate A23 corresponding to the clamping groove A211. Specifically, an electric push rod A25 is fixedly arranged on the top of the vertical plate 22 to drive the pressing plate A23 to move up and down, and the pressure strip A24 at the bottom of the pressing plate A23 cooperates with the clamping groove A211.

[0025] The movable fixture 3 comprises: The door frame 31 is driven by external force to slide on the top of the testing platform 1, and is used to adapt to the testing of packaging bag bodies 100 of different lengths; The sliding platform 32 is fixedly arranged at the bottom of the door frame 31; The pressure plate B33 is movably arranged on the top of the door frame 31 and is pressed against the top of the sliding table 32 by external force, and is used to clamp the end of the packaging bag body 100. In order to ensure the clamping effect on the other end of the packaging bag body 100, a clamping groove B321 is provided at the bottom of the sliding table 32, and a pressure strip B34 is fixedly arranged at the bottom of the pressure plate B33 corresponding to the clamping groove B321. Specifically, the inspection platform 1 includes a top plate 11 and a bottom plate 12, a slide rail 13 is fixedly arranged on one side of the top plate 11, and the door frame 31 is slidably arranged on the top of the top plate 11 through the slide rail 13, and an electric push rod B35 for driving the pressure plate B33 to move up and down is fixedly arranged on the top of the door frame 31.

[0026] The dynamic clamp 3 also includes a fan A36, which is fixedly arranged at the bottom of the sliding table 32; an air vent 322 is opened on the inner side of the sliding table 32, and the clamping groove B321 is connected to the air vent 322; the fan A36 moves in the space formed by the top plate 11 and the bottom plate 12, and is used to make the clamping groove B321 generate suction. When the pressure plate B33 drives the sliding table 32 to move, it can ensure that the packaging bag body 100 is tightly attached to the top of the sliding table 32 for smoothing, so as to prevent the packaging bag body 100 from being offset due to looseness when the sliding table 32 approaches the end of the packaging bag body 100, and a hydraulic push rod 37 for driving the door frame 31 to move is fixedly arranged inside the top plate 11 and the bottom plate 12, and a pressure sensor 38 is arranged between the driving end of the hydraulic push rod 37 and the sliding table 32, which is used to detect the tension applied to the packaging bag body 100 when it is stretched.

[0027] The adjustable plastic packaging bag stretching detection device recorded in the embodiment of the present invention also includes a fan B5, which is fixedly arranged at the bottom of the detection platform 1, and an electric heater 51 is fixedly arranged at the air outlet end of the fan B5; an air outlet hole 48 is opened on the inner side of the support plate 41, and a detection box 15 is fixedly arranged on the top of the detection platform 1. The fan B5 is used to supply air to the electric heater 51 for heating, and air at a certain temperature is supplied to the inside of the detection box 15, so that the packaging bag body 100 can be stretched under different temperature environments. The top plate 11 and the bottom plate 12 are both provided with through holes 14 on the inner sides, and the electric heater 51 is fixedly arranged at the bottom of the bottom plate 12 corresponding to the through holes 14.

[0028] The adjustable plastic packaging bag stretching detection device described in the embodiment of the present invention also includes a recycling component 6, which includes a recycling box 61. The recycling box 61 is fixedly arranged at the bottom of the detection platform 1, and the top of the recycling box 61 is fixedly connected to the air inlet end of the fan B5. Both sides of the recycling box 61 are fixedly provided with pipe channels 63, and the other ends of the pipe channels 63 are fixedly arranged at both sides of the detection box 15, and are arranged corresponding to the fixed clamp 2 and the movable clamp 3. The fan B5 generates a strong suction force to generate a negative pressure inside the recycling box 61, and then the packaging bag body 100 that is stretched and broken inside the detection box 15 is sucked out and recycled through the pipe channel 63. After the packaging bag body 100 in the suction pipe channel 63 enters the interior of the recycling box 61, it is stored in the interior of the recycling box 61 under the obstruction of the grid plate 64, so that the door plate 67 on the inner side of the recycling door 62 is opened to collect and recycle the packaging bag body 100 inside the recycling box 61.

[0029] A bottom hole 631 is provided on one side of the tube channel 63, and a box body 65 is slidably arranged inside the bottom hole 631. The box body 65 is driven to slide by an external force. Specifically, an electric push rod C66 is fixedly arranged on the bottom of the box body 65, and the electric push rod C66 is fixedly arranged on the outside of the support leg 19, and the support leg 19 is fixedly arranged on the bottom of the testing platform 1; wherein, an air inlet hole 651 is provided on the bottom of the box body 65, and a side hole 652 is provided on the side of the box body 65 away from the fixed fixture 2. Before the packaging bag body 100 is stretched, the electric push rod C66 drives the box body 65 to slide along the bottom hole 631 toward the inside of the tube channel 63. At this time, the side hole 652 on the outside of the box body 65 is located inside the tube channel 63, and the air inlet 651 is located outside the tube channel 63, so that the fan B5 is connected to the external air through the tube channel 63 and the air inlet 651, and the tube channels 63 on both sides of the detection box 15 are sealed, so that the fan B5 can continuously input hot air into the detection box 15. At this time, the temperature of the stretching environment can be detected by the temperature sensor 18 on the outside of the detection box 15, and displayed by the display controller 17 on the outside of the detection box 15. When the temperature reaches the preset value, the display controller 17 controls the movable clamp 3 inside the detection box 15 to start the stretching action, and the stretching detection result is displayed and recorded by the display controller 17; in order to facilitate the operator to load and unload materials, a glass door 16 is slidably set on one side of the detection box 15 to facilitate the sealing and opening of the detection box 15.

[0030] A slide plate 212 is slidably provided on the top of the fixed clamping platform 21. The slide plate 212 is located inside the clamping groove A211. The slide plate 212 slides under the action of elastic force. The air outlet direction of the clamping groove B321 is inclined upward and is arranged toward the tube channel 63 on the corresponding side. The air outlet direction of the air outlet hole 48 is inclined upward and is arranged toward the tube channel 63 on the corresponding side. When the pressure plate A23 is pressed tightly on the top of the fixed clamping platform 21, it drives the pressure strip A24 to cooperate with the clamping groove A211 to improve the stability of clamping the packaging bag body 100, and the pressure strip A24 presses the slide plate 212 inside the clamping groove A211 into the interior of the fixed clamping platform 21. When the pressure strip A24 is reset upward, the slide plate 212 slides upward under the action of elastic force, so that the clamping end of the packaging bag body 100 is automatically pushed out of the inner side of the clamping groove A211 after deformation, so as to reduce the resistance of the tube channel 63 to absorb the packaging bag body 100, and through The air is input into the inspection box 15 through the blower B5, and the air is blown out through the obliquely arranged air outlet 48, so that the air blown out of the air outlet 48 blows the packaging bag body 100 toward the entrance of the tube channel 63, so as to cooperate with the tube channel 63 on one side to recycle the packaging bag body 100; and the air is blown into the air vent 322 through the reverse operation of the blower A36, and the air is blown obliquely toward the entrance of the tube channel 63 through the clamping groove B321 on the top of the air vent 322, so as to facilitate the tube channel 63 on the other side to recycle the packaging bag body 100.

[0031] Principle and advantages of adjustable plastic packaging bag stretch detection device: First, open the glass door 16 on one side of the inspection box 15, and the staff will place the packaging bag body 100 on the top of the positioning component 4 and spread it out. At this time, the spacing between the two sliding holes 42 on the top of the support plate 41 has been adjusted in advance to be consistent with the width of the packaging bag body 100, which plays a role in positioning the laying direction of the packaging bag body 100. Then, one end of the packaging bag body 100 is placed on the top of the fixed clamping platform 21. At this time, the sliding platform 32 is close to the outside of the positioning component 4, and then the glass door 16 is closed to make the inspection box 15 in a sealed state; if it is not necessary to perform a stretching test on the packaging bag body 100 in a specific environment, it is directly started through the display controller 17 and the dynamic clamp 3 is controlled to start The sliding table 32 is moved to move a distance in the stretching direction and is located at the other end of the packaging bag body 100. Finally, the pressing plate B33 is moved downward to press the top of the sliding table 32 to clamp and fix the other end of the packaging bag body 100. When the movable clamp 3 is driven to move, the packaging bag body 100 can be stretched by the movable clamp 3 in cooperation with the fixed clamp 2. When the sliding table 32 moves, the hydraulic push rod 37 drives the sliding table 32 to drive the door frame 31 to slide along the slide rail 13. When the stretching starts, the pressure sensor 38 located between the hydraulic push rod 37 and the sliding table 32 detects the change in the pressure on the sliding table 32, and displays the detection result through the display controller 17. If it is necessary to perform a tensile test on the packaging bag body 100 under specified temperature conditions, after closing the glass door 16, air is input into the testing box 15 through the fan B5. Before the air enters the testing box 15, it is heated by the electric heater 51 to create the required temperature conditions inside the testing box 15, so as to test the tensile properties of the packaging bag body 100 under different temperature conditions.

[0032] The advantages are as follows: by setting the positioning component 4 to limit the packaging bag body 100 to be tested, the two ends of the packaging bag body 100 are limited by the two sliding holes 42 before clamping and are parallel to the stretching direction, and then the two ends of the packaging bag body 100 are clamped by the fixed clamp 2 and the movable clamp 3 on both sides of the positioning component 4 respectively, so as to ensure that after the two ends of the packaging bag body 100 are clamped, the force on the packaging bag body 100 is more uniform when being tested in the stretching direction, so as to ensure the accuracy of the test result; and by setting two adjustable sliding holes 42, the positioning component 4 can use packaging bag bodies 100 of different widths for positioning work by adjusting the spacing between the sliding holes 42, and by A movable clamp 3 is arranged on one side of the positioning component 4, and the distance between the movable clamp 3 and the fixed clamp 2 can be adjusted by moving the movable clamp 3, so that the fixed clamp 2 and the fixed clamp 2 can use packaging bag bodies 100 of different lengths to achieve clamping action, so as to adapt to the stretching test of packaging bag bodies 100 of different specifications; at the same time, in order to facilitate the detection of the tensile properties of the packaging bag body 100 under different temperature conditions, a test box 15 is arranged on the top of the test platform 1 to isolate it from the outside world. Before the test, hot air is input into the inside of the test box 15 through the fan B5 at the bottom of the test platform 1, so that the inside of the test box 15 can create a test environment with different temperature conditions, so as to facilitate the detection of the tensile properties of the packaging bag body 100 under different temperature conditions.

[0033] During the stretching test of the movable clamp 3 in the adjustable plastic packaging bag stretching test device of the present application, when the packaging bag body 100 is placed between the two sliding holes 42, one end of the packaging bag body 100 is located on the clamping position of the fixed clamp 2, and the other end of the packaging bag body 100 is placed on the top of the sliding table 32, and then the sliding table 32 in the movable clamp 3 is driven to move from one side of the positioning component 4 to the side away from the fixed clamp 2, so that the sliding table 32 gradually approaches the other end of the packaging bag body 100 to adapt to the detection of packaging bag bodies 100 of different lengths, and at the same time, the fan A36 at the bottom of the sliding table 32 generates suction, so that negative pressure is formed inside the air vents 322 inside the sliding table 32, and then the air vents 322 generate suction on the packaging bag body 100 on the top of the sliding table 32 through the clamping groove B321, so that the sliding table 32 moves toward the packaging bag body 1 00, the suction force generated makes the packaging bag body 100 always adsorbed on the top of the sliding table 32, and then before the packaging bag body 100 is clamped, it has the effect of unfolding and smoothing the packaging bag body 100, to prevent the other end of the packaging bag body 100 from becoming loose and deviating when the sliding table 32 approaches the other end of the packaging bag body 100. On this basis, when the sliding table 32 is located at the clamping part at the other end of the packaging bag body 100, it can cooperate with the pressing plate B33 to achieve the effect of accurate clamping, and when clamping, the pressure strip B34 at the bottom of the pressing plate B33 cooperates with the clamping groove B321 to ensure the stability of the clamping of the end of the packaging bag body 100. Similarly, the fixed clamping table 21 and the pressing plate A23 used to clamp the other end of the packaging bag body 100 cooperate with the pressure strip A24 and the clamping groove A211 to ensure the stability of the clamping.

[0034] It is worth mentioning that the above stretching method has the following advantages: Advantage 1: By setting up a horizontally sliding sliding table 32, before stretching, the sliding table 32 can be moved closer to the end of the packaging bag body 100, so that the sliding table 32 can adapt to packaging bag bodies 100 of different lengths to realize automatic clamping action, so as to accurately clamp the two ends of the packaging bag body 100 based on the positioning of the positioning component 4.

[0035] Advantage two, by setting the fan A36 to generate negative pressure inside the sliding table 32, when the sliding table 32 moves at the bottom of the packaging bag body 100, the suction force generated by the clamping groove B321 can make the packaging bag body 100 adsorbed on the top of the sliding table 32, thereby preventing the packaging bag body 100 from loosening during the movement of the sliding table 32 and causing the end to shift, so as to ensure the stability of the subsequent clamping of the sliding table 32.

[0036] Advantage three, by opening a clamping groove B321 on the top of the sliding table 32, the suction force generated by the clamping groove B321 can maintain the stability of the close contact between the packaging bag body 100 and the sliding table 32, thereby ensuring the clamping accuracy of the sliding table 32 on the packaging bag body 100. At the same time, under the adsorption effect of the clamping groove B321, when the pressure plate B33 moves downward and presses on the top of the sliding table 32, on the basis of the adsorption effect, the pressure strip B34 at the bottom of the pressure plate B33 cooperates with the clamping groove B321 to ensure the stability of the clamping of the packaging bag body 100.

[0037] When the recovery component 6 in the adjustable plastic packaging bag stretching detection device of the present application recovers the packaging bag body 100 after stretching, the fan B5 blows air to the inside of the detection box 15. When the air enters the detection box 15, it enters the inside of the positioning component 4, so that the hot air enters the inside of the detection box 15 through the air outlet 48 on the inner side of the support plate 41. At this time, the fan B5 generates negative pressure inside the recovery box 61, so that the recovery box 61 passes through the pipe channels 63 on both sides to blow the packaging bag body 100 that has been stretched and disconnected in the detection box 15 into the detection box 15. The air outlet 48 continuously blows out air, and blows the air out obliquely toward the fixed clamp 2, so as to blow the packaging bag body 100 after the top of the support plate 41 is broken toward the entrance of the tube channel 63. At the same time, when the pressure strip A24 at the bottom of the pressure plate A23 clamps the end of the packaging bag body 100, the end of the packaging bag body 100 is bent and deformed by the pressure strip A24 and the clamping groove A211, and the blowing action of the air outlet 48 can prevent the end of the packaging bag body 100 from being stuck in the clamping groove A211. The packaging bag body 100 on the inner side of the clamping groove A211 is pushed out of the clamping groove A211 by the slide plate 212, so as to reduce the resistance of the tube channel 63 to the recovery of the packaging bag body 100; and the fan A36 at the bottom of the sliding table 32 runs in the reverse direction (using the existing There is a fan device that can rotate forward and backward in the art, which will not be described in detail here), so that the clamping groove B321 blows air toward the tube channel 63 on the same side, so as to blow the packaging bag body 100 that is stretched and broken at the top of the sliding table 32 toward the entrance of the tube channel 63, and the air is blown out through the clamping groove B321, and the end of the packaging bag body 100 that is pressed by the pressure strip B34 on the inner side of the clamping groove B321 can be blown out, so as to prevent the end of the packaging bag body 100 from being stuck in the inner side of the clamping groove B321 due to deformation under pressure, thereby hindering the recovery of the tube channel 63; In order not to affect the input of hot air into the detection box 15 by the fan B5, after the recovery component 6 completes the recovery work, the electric push rod C66 drives the box body 65 to slide on the inner side of the tube channel 63, so that the box body 65 slides along the bottom hole 631 to the inside of the tube channel 63 to seal the entrance end of the tube channel 63, thereby preventing a large amount of heat loss caused by the input of hot air into the detection box 15 by the fan B5. In order to ensure that the fan B5 can smoothly absorb the outside air, an air inlet hole 651 and a side hole 652 are respectively opened at the bottom of the box body 65 and the side away from the positioning component 4, so that when the box body 65 is located inside the tube channel 63, the outside air enters the inside of the tube channel 63 through the air inlet hole 651 and the side hole 652, and then passes through the inside of the recovery box 61 to be absorbed and used by the fan B5, so as to adjust the working state of the fan B5 and the recovery component 6 according to the usage.

[0038] It is worth mentioning that the above recycling method has the following advantages: Advantage 1: By setting up a recovery box 61 connected to the air inlet end of the fan B5, the fan B5 can recycle the packaging bag body 100 that has been stretched and broken inside the detection box 15 through the pipe channels 63 on both sides of the recovery box 61, so as to automatically clean up the waste of the packaging bag body 100 after detection.

[0039] Advantage two, by slidingly setting the box body 65 on the inner side of the tube channel 63, when the recycling box 61 cooperates with the fan B5 to recycle the packaging bag body 100, the sliding box body 65 is located on the outer side of the tube channel 63 to ensure the connectivity between the tube channel 63 and the detection box 15; and when the recycling box 61 completes the recycling work, the sliding box body 65 is located inside the tube channel 63 to separate the tube channel 63 and prevent the fan B5 from subsequently inputting hot air into the detection box 15, which causes heat loss; at the same time, the tube channel 63 is connected to the outside through the box body 65, which can ensure that the fan B5 can continuously absorb air for heating input.

[0040] Advantage three, by setting the air outlet hole 48 on the inner side of the support plate 41, the air input by the fan B5 is blown out from bottom to top, and the packaging bag body 100 can be blown upward when recycling waste, so that the packaging bag body 100 and the support plate 41 are loosened, which is beneficial to the pipe channel 63 to recycle the waste, and by tilting the air outlet direction of the air outlet hole 48, the air outlet hole 48 can blow the waste box towards the direction of the pipe channel 63 to ensure the smoothness of the recycling.

[0041] Advantage four, by setting up a horizontally movable sliding table 32, it can not only adapt to stretching work of different lengths, but also drive the clamped packaging bag body 100 to cut off the waste and approach the entrance end of the tube channel 63 on the other side after the stretching test of the packaging bag body 100, so that the tube channel 63 can absorb and recycle the waste on the top of the sliding table 32; and make the air blown out of the clamping groove B321 toward the tube channel 63 on the corresponding side, so as to blow the waste to the tube channel 63 for recycling, and prevent the compression end of the packaging bag body 100 from deforming and getting stuck on the inner side of the clamping groove B321 to increase the recovery resistance.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable plastic packaging bag stretch detection device, characterized in that: include: Testing station (1); A fixed clamp (2), fixedly arranged on one side of the top of the detection platform (1), and used for clamping one end of the packaging bag body (100); A movable clamp (3) is slidably disposed on the top of the detection platform (1), and is used to clamp the other end of the packaging bag body (100), and is driven by an external force to trigger a stretching action; A positioning assembly (4) is arranged on the top of the detection platform (1) and is located between the fixed fixture (2) and the movable fixture (3); The positioning assembly (4) comprises a support plate (41), a sliding hole (42) is symmetrically opened on the top of the support plate (41), a positioning plate (43) is symmetrically slidably arranged on the top of the support plate (41) along the sliding hole (42), and the two positioning plates (43) are driven by an external force to adjust the positioning spacing.

2. The adjustable plastic packaging bag stretch detection device according to claim 1, characterized in that: The fixed fixture (2) comprises: A fixed clamping platform (21) fixedly arranged on the top of the testing platform (1); A vertical plate (22) is fixedly arranged on the top of the testing platform (1) and is located on a side of the fixed clamping platform (21) away from the movable clamp (3); The pressing plate A (23) is movably arranged on the outside of the vertical plate (22) and is driven by an external force to be pressed against the top of the fixed clamping platform (21).

3. The adjustable plastic packaging bag stretch detection device according to claim 2, characterized in that: The top of the fixed clamping platform (21) is provided with a clamping groove A (211), and the bottom of the pressing plate A (23) is fixedly provided with a pressing strip A (24) corresponding to the clamping groove A (211).

4. The adjustable plastic packaging bag stretch detection device according to claim 3, characterized in that: The movable clamp (3) comprises: A door frame (31) is driven by an external force to slide on the top of the testing platform (1) and is used to detect packaging bag bodies (100) of different lengths; A sliding platform (32) is fixedly arranged at the bottom of the door frame (31); The pressing plate B (33) is movably arranged on the top of the door frame (31) and is driven by an external force to press against the top of the sliding platform (32) to clamp the end of the packaging bag body (100).

5. The adjustable plastic packaging bag stretch detection device according to claim 4, characterized in that: The bottom of the sliding platform (32) is provided with a clamping groove B (321), and the bottom of the pressing plate B (33) is fixedly provided with a pressing strip B (34) corresponding to the clamping groove B (321).

6. The adjustable plastic packaging bag stretch detection device according to claim 5, characterized in that: The movable clamp (3) further comprises a fan A (36) fixedly arranged at the bottom of the sliding platform (32); an air vent (322) is provided on the inner side of the sliding platform (32), and the clamping groove B (321) is communicated with the air vent (322).

7. The adjustable plastic packaging bag stretch detection device according to claim 6, characterized in that: It also comprises a fan B (5), the fan B (5) being fixedly arranged at the bottom of the testing platform (1), and an electric heater (51) being fixedly arranged at the air outlet end of the fan B (5); An air outlet hole (48) is provided on the inner side of the support plate (41), and a detection box (15) is fixedly arranged on the top of the detection platform (1).

8. The adjustable plastic packaging bag stretch detection device according to claim 7, characterized in that: The invention also comprises a recovery component (6), wherein the recovery component (6) comprises a recovery box (61), wherein the recovery box (61) is fixedly arranged at the bottom of the test bench (1), and the top of the recovery box (61) is fixedly connected to the air inlet end of the fan B (5), and tube channels (63) are fixedly arranged on both sides of the recovery box (61), and the other ends of the tube channels (63) are fixedly arranged on both sides of the test box (15) and are arranged corresponding to the fixed clamp (2) and the movable clamp (3).

9. The adjustable plastic packaging bag stretch detection device according to claim 8, characterized in that: A bottom hole (631) is provided on one side of the tube channel (63), a box body (65) is slidably provided inside the bottom hole (631), and the box body (65) is driven to slide by an external force; an air inlet hole (651) is provided on the bottom of the box body (65), and a side hole (652) is provided on a side of the box body (65) away from the fixed fixture (2).

10. The adjustable plastic packaging bag stretch detection device according to claim 9, characterized in that: A slide plate (212) is slidably provided on the top of the fixed clamping platform (21), the slide plate (212) is located inside the clamping groove A (211), and the slide plate (212) slides under the action of elastic force; The air outlet direction of the clamping groove B (321) is inclined upward and is arranged toward the tube channel (63) on the corresponding side; The outlet direction of the air outlet hole (48) is inclined upward and is arranged toward the tube channel (63) on the corresponding side.

Images