Detection device for detecting defects of packaging box

Abstract

The invention relates to the technical field of packaging box detection, in particular to a detection device for defect detection of a packaging box, which comprises a rack and a mounting table arranged on the rack, the mounting table is used for placing the packaging box, the rack is provided with a detection assembly for carrying out tearing detection on ear edges of the packaging box, the mounting table is provided with two groups of limiting blocks, and the limiting blocks are arranged on the mounting table. The side walls, close to each other, of the two limiting blocks are movably attached to the peripheral wall of the packaging box. The detection assembly comprises a mounting block arranged on the rack in a lifting manner, a clamping piece arranged on the mounting block and an adjusting piece for performing lifting adjustment on the clamping piece, the clamping piece comprises two clamping blocks which are movably close to each other, a cavity for placing the ear edge is reserved between the two clamping blocks, the clamping blocks are rotationally arranged on the mounting block, and the adjusting piece is arranged on the mounting block. And a tension sensor is arranged on the clamping block. The packaging box has the beneficial effects that the precise tear resistance of the packaging box under the use working condition when the packaging box serves as a wine bottle package can be conveniently obtained, and therefore the bearing performance and quality of the packaging box can be conveniently and accurately judged.

Description

Technical Field

[0001] The present application relates to the technical field of packaging box detection, and in particular to a detection device for packaging box defect detection. Background Art

[0002] At present, many items in daily life need to be packaged in boxes. There are many types and styles of packaging boxes, generally cubes and rectangular blocks are the majority. Before leaving the factory, the packaging boxes need to be tested multiple times to ensure that the performance indicators of the packaging boxes after leaving the factory meet the standards and ensure the quality of the packaging boxes.

[0003] When testing packaging boxes, it is often necessary to test the pattern and text, surface quality, thickness uniformity and tear resistance on the packaging boxes, especially the tear resistance of the packaging boxes. When testing the tear resistance of packaging boxes, common tear resistance testing methods include tear extension test method and pendulum impact test method.

[0004] Direct tensile test method: first remove a small part of the sample from the packaging box, cut a notch on the sample, install the sample on the fixture of the pendulum impact tester, ensure that the notch of the sample is directly below the impact point, adjust the height of the pendulum to the specified value, and release the pendulum. Based on parameters such as the mass of the pendulum, the release height, and the energy loss after the impact, the energy absorbed by the sample can be calculated, thereby indirectly reflecting the tear resistance of the packaging box material.

[0005] Tear extension test method: accurately cut a small hole of a specific length and shape on the test piece to be tested, and install the test piece on the fixture of the tear extension tester to ensure that the installation position of the test piece is accurate. Then the tester pulls the test piece and records data such as force value and tear extension distance in real time. The tear resistance curve is obtained based on the recorded data to comprehensively evaluate the tear resistance of the packaging box material.

[0006] When the tear resistance test is performed by the above two test methods, only the tear resistance of the packaging box material is tested, and it is not easy to accurately show the tear resistance of the packaging box during use. For example, when it is used as a wine bottle packaging, since the packaging box is heavy when holding the wine bottle, consumers often use the method of holding the packaging box, that is, consumers hold the bottom of the packaging box with both hands to carry the packaging box; when carrying it, consumers need to first lift one side of the packaging box by holding one ear, put their hand into the bottom of the packaging box, and then lift the other side of the packaging box by holding the other ear, and put their hand into the bottom of the packaging box. In the process of lifting the packaging box, the folding of the ear of the packaging box is prone to tearing, and this scenario is the most common scenario for rupture in daily use. It is not easy to show the tear resistance of the folding of the ear through the above two test methods. Therefore, it is not easy to obtain the precise tear resistance of the packaging box when used as a packaging for heavy objects such as wine bottles, so it needs to be improved. Summary of the invention

[0007] In order to facilitate the determination of the precise tear resistance of a packaging box when used as a wine bottle packaging, thereby facilitating accurate judgment of the load-bearing capacity and quality of the packaging box, the present application provides a detection device for packaging box defect detection.

[0008] The present application provides a detection device for packaging box defect detection using the following technical solution: A detection device for detecting defects in packaging boxes, comprising a frame and a mounting platform arranged on the frame, the mounting platform is for placing packaging boxes, the frame is provided with a detection component for detecting tears on the ears of the packaging boxes, the mounting platform is provided with a limit block, the limit block is provided with two groups, the side walls of the two groups of limit blocks close to each other are movably fitted with the outer peripheral wall of the packaging box; the detection component comprises a mounting block arranged on the frame in a lifting manner, a clamping member arranged on the mounting block, and an adjusting member for lifting and lowering the clamping member, the clamping member comprises two A clamping block is movable and close to each other, a cavity for placing an ear is reserved between the two clamping blocks, the clamping block is rotatably set on the mounting block, and a tension sensor is provided on the clamping block; when the mounting block rises, the clamping block slides toward the center of the packaging box; the clamping members are provided with two groups, the two groups of clamping members are arranged relatively to each other, and the extension direction of the two groups of clamping members is perpendicular to the extension direction of the two groups of limit blocks; the mounting platform is slidably set on the frame, and the mounting block is also provided with a limit member for limiting the sliding of the mounting platform.

[0009] By adopting the above technical solution, when the tear resistance of the packaging box is tested, the technician first adds a weight of standard mass into the packaging box and places the packaging box on the mounting table. At this time, the ear on one side of the packaging box is clamped by the clamping block, and then the adjusting piece lifts the mounting block to lift the packaging box on one side. In actual circumstances, when the ear on one side is lifted, the ear will move, and the ear will always remain in a vertical state. Therefore, by rotating the clamping block and sliding the clamping block on the mounting block, the clamping block slides on the mounting block during the lifting process of the packaging box, so that the angle of the clamping block changes with the lifting height, thereby actually simulating the use condition of the packaging box in the process of carrying heavy objects.

[0010] When carrying out short-distance transportation, for example, moving a package box filled with liquor a short distance, the relevant personnel often do not adopt the method of holding the package box in their arms, but transport the package box by holding the two ears for a short distance. During the transportation, the package box will shake as the relevant personnel move, and the ears are prone to break or tear. In order to simulate this situation on the detection device at the same time, and thus detect the tear resistance of the package box under this usage condition, a sliding mounting table is used. When both ears are clamped and lifted, the mounting table slides, and under the action of the limit block, the package box is driven to slide, thereby simulating the shaking of the relevant personnel when walking, and judging the tear resistance of the ears of the package box based on the changes in the tension sensor on the clamping block during shaking and whether the ears are torn.

[0011] At the same time, by setting a limit block whose extension direction is perpendicular to the extension direction of the clamping piece, when both ears are clamped, the clamping direction of the clamping block is perpendicular to the movement direction of the packaging box, thereby more accurately simulating the shaking direction of the packaging box when it is carried.

[0012] Optionally, an adjusting screw is rotatably provided on the mounting block, an adjusting block is threadedly mounted on the adjusting screw, both ends of the adjusting screw are provided with external threads with the same pitch and opposite threads, and two groups of adjusting blocks are provided, the two groups of adjusting blocks correspond one-to-one with the two groups of clamping members, and the clamping block is rotatably provided on the adjusting block, and when the mounting block is raised or lowered, a sliding member is also provided on the mounting block for synchronously sliding and adjusting the clamping member.

[0013] By adopting the above technical solution, when the two groups of clamping blocks need to be slidably adjusted, the adjusting screw is rotated, thereby driving the two groups of adjustment blocks to slide closer or farther synchronously on the adjusting screw, thereby realizing synchronous rotation adjustment of the two groups of clamping blocks, simulating the rotation state when the two ears of the packaging box are lifted synchronously.

[0014] Optionally, the sliding member includes a sliding gear rotatably arranged on the mounting block, a sliding rack is provided on the frame, the sliding gear is meshed with the sliding rack, and an adjusting bevel gear is coaxially provided on the adjusting screw rod, a sliding bevel gear is coaxially provided on the sliding gear, and the adjusting bevel gear is meshed with the sliding bevel gear.

[0015] By adopting the above technical solution, when the mounting platform is lifted and lowered to drive the ear of the packaging box to lift and lower, the sliding rack on the frame does not move. When the mounting platform is lifted and lowered, the sliding rack drives the sliding gear to rotate, the sliding gear drives the sliding bevel gear to rotate, and the sliding bevel gear drives the adjusting bevel gear to rotate, thereby driving the adjusting screw to rotate. When the adjusting part drives the mounting platform to lift and lower, the two clamping blocks are driven to slide closer or slide away synchronously, and the clamping blocks are automatically driven to slide and rotate during the process of lifting and lowering the mounting platform.

[0016] Optionally, a base is slidably arranged on the frame, the mounting platform is arranged on the base, the sliding direction of the base is consistent with the layout direction of the two limit blocks, a sliding groove is opened on the frame, a sliding block is arranged on the bottom side of the base, the sliding block is slidably arranged in the sliding groove, a sliding spring is arranged in the sliding groove, the sliding spring is located on one side of the sliding block, and a sliding cam is rotatably arranged in the sliding groove, and the sliding cam is in contact with a side of the sliding block away from the sliding spring.

[0017] By adopting the above technical solution, when it is necessary to simulate the working state of a person holding the packaging box by two ears to carry it, the sliding cam rotates, and under the action of the sliding spring, the outer peripheral wall of the sliding cam is always in contact with the sliding block. When the sliding cam rotates, the distance between the sliding cam and the sliding block will change, thereby driving the mounting table to slide. Since a limit block is provided on the mounting table, the packaging box is driven to shake under the action of the limit block, thereby simulating the shaking of the packaging box during the transportation process.

[0018] Optionally, the limiting member includes a first rotating rod, a second rotating rod and a third rotating rod rotatably arranged on the frame, the first rotating rod being transmission connected to the adjusting gear, the first rotating rod, the second rotating rod and the third rotating rod being arranged in sequence and spaced apart along the same axial direction, the sliding cam being coaxially arranged on the third rotating rod, the first rotating rod and the second rotating rod being movably transmission connected, the second rotating rod and the third rotating rod being movably transmission connected, the mounting block is also provided with a transmission member for transmitting the first rotating rod and the second rotating rod, the second rotating rod and the third rotating rod, and the gap between the first rotating rod and the second rotating rod corresponds to a group of clamping blocks, and the gap between the second rotating rod and the third rotating rod corresponds to another group of clamping blocks.

[0019] By adopting the above technical solution, when the technician needs to rotate and adjust the sliding cam, both ears must be clamped at this time. By setting the first rotating rod, the second rotating rod and the third rotating rod, when the sliding cam needs to be rotated and adjusted, the first rotating rod, the second rotating rod and the third rotating rod are connected by the transmission member, so as to realize the rotation adjustment of the sliding cam, and the two groups of clamping blocks are respectively corresponding to the gap between the first rotating rod and the second rotating rod, and the gap between the second rotating rod and the third rotating rod, so that when the two groups of clamping blocks clamp the ears, the transmission member is adjusted to realize the rotation adjustment of the sliding cam; At the same time, through the first rotating rod arranged with the adjusting gear transmission, when the mounting platform rises to clamp and lift the ear edge, the first rotating rod is always driven to rotate by the same power source. Therefore, only when both ear edges are clamped and lifted, the first rotating rod, the second rotating rod and the third rotating rod are transmitted to drive the sliding cam to rotate, thereby realizing the sliding adjustment of the mounting platform.

[0020] Optionally, the transmission member includes a first tightening sleeve slidably mounted on the second rotating rod, the first tightening sleeve movably tightening against the end side of the first rotating rod, a second tightening sleeve slidably mounted on the third rotating rod, the second tightening sleeve movably tightening against the end side of the second rotating rod, and a tightening member for slidingly adjusting the first tightening sleeve and the second tightening sleeve is also provided on the frame.

[0021] By adopting the above technical solution, when simulating the short-distance transportation of the packaging box, the clamping member slides and adjusts the first clamping sleeve and the second clamping sleeve that are slidably arranged, so that the first clamping sleeve is tightly pressed against the end side of the first rotating rod, and the first rotating rod drives the second rotating rod to rotate. At the same time, the second clamping sleeve is tightly pressed against the end side of the second rotating rod, so that the second rotating rod drives the third rotating rod to rotate, and then the first rotating rod, the second rotating rod, and the third rotating rod are synchronously rotated, thereby realizing the rotation adjustment of the sliding cam.

[0022] Optionally, the clamping members are provided with two groups, and the two groups of the clamping members correspond one-to-one to the first clamping sleeve and the second clamping sleeve respectively. The clamping members include a clamping rod rotatably set on the frame and a locking rod slidably set on the frame. The end side of the locking rod is inclined, and the inclined side of the locking rod is in contact with the circumferential side of the first clamping sleeve / the second clamping sleeve. The end of the clamping rod away from the first clamping sleeve / the second clamping sleeve is rotatably set on the locking rod.

[0023] By adopting the above technical solution, when the first tightening sleeve / the second tightening sleeve needs to be slidably adjusted, the locking rod is driven to slide by rotating the tightening rod. Since the end side of the locking rod is inclined, in the process of the locking rod pressing against the first tightening sleeve / the second tightening sleeve, the first tightening sleeve is driven to slide in the direction of the first rotating rod / the second tightening sleeve is driven to slide in the direction of the second rotating rod, thereby realizing the rotation transmission of the first rotating rod and the second rotating rod / the second rotating rod and the third rotating rod.

[0024] Optionally, the end of the clamping rod away from the locking rod is rotatably provided with a movable block, the movable block protrudes from the surface of the frame, the adjusting block is elastically and slidably provided with a receiving block, the receiving block is slidably provided on the adjusting block, and the sliding direction of the receiving block is consistent with the height direction of the frame, the clamping block is rotatably provided on the receiving block, and a displacement block is slidably provided on a side of the mounting block close to the frame, one end of the displacement block movably protrudes from the surface of the mounting block, the other end of the displacement block is inclined, a displacement groove is provided on the movable block, the inner side wall of the displacement groove is in contact with the inclined side of the displacement block, and one end of the displacement block movably protrudes from the mounting block and is movably in contact with the movable block; When a group of clamping blocks detects the ear clamping of the packaging box, when the mounting block rises, the corresponding accommodation block descends relative to the mounting block, and the corresponding displacement block is ejected. At this time, the first abutting sleeve / the second abutting sleeve slides to the abutting position, and the first rotating shaft and the second rotating shaft / the second rotating shaft and the third rotating shaft rotate synchronously; When the two groups of clamping blocks respectively clamp and detect the two ears of the packaging box, when the mounting block rises, the two groups of accommodating blocks both descend relative to the mounting block to push out the corresponding displacement blocks. At this time, the first tightening sleeve and the second tightening sleeve both slide to the tightening position, thereby realizing the synchronous rotation of the first rotating shaft, the second rotating shaft and the third rotating shaft.

[0025] By adopting the above technical solution, when the two ears of the packaging box are clamped for tear resistance testing, when the mounting block rises, the two groups of accommodating blocks are lowered relative to the mounting block, and the corresponding displacement blocks are pushed out, and the displacement blocks are pressed against the movable block, thereby driving the pressing rod to rotate, so that the locking rod at the other end of the pressing rod slides, and the two locking rods are pressed against the first pressing sleeve and the second pressing sleeve respectively. At this time, the first pressing sleeve and the second pressing sleeve both slide to the pressing position, thereby realizing the synchronous rotation of the first rotating shaft, the second rotating shaft and the third rotating shaft, so that when the mounting platform is raised or lowered, the sliding cam is driven to rotate, and the sliding block is realized, thereby realizing the sliding of the mounting platform, simulating the shaking of relevant personnel during transportation.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the installation block set up for lifting, two groups of clamping parts slidably set on the installation block, the tension sensor set on the clamping block and the installation table slidably set on the frame, when the packaging box is subjected to tear resistance test, the technician places the packaging box on the installation table. When the tear resistance test of one side is required, a group of clamping parts is used to clamp and lift a single ear edge, and the tear resistance performance of the ear edge on one side of the packaging box is judged by the reading of the tension sensor. When the tear resistance performance test of both ears needs to be carried out at the same time, the two ears are clamped and lifted by the two groups of clamping parts, so as to carry out tear resistance test on both ears of the packaging box at the same time. 2. Through the sliding mounting platform set on the frame, the sliding block connected to the mounting platform, the sliding cam pressed against the sliding block, and the sliding spring set on the sliding block, the sliding block is pushed to slide under the joint action of the sliding spring and the sliding cam, thereby driving the mounting platform to slide, and the mounting platform drives the limit block to press against the packaging box to shake, thereby simulating the shaking when the relevant personnel carry it; 3. By setting a limit block on the mounting block, and rotating the first rotating rod, the second rotating rod, the third rotating rod and the transmission member set on the frame, when it is necessary to clamp and lift the two ears of the packaging box for tear resistance testing, the three groups of rotating rods are rotated synchronously through the transmission member, thereby driving the sliding block to slide, realizing the shaking of the mounting table, simulating the shaking of relevant personnel during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a detection device for detecting packaging box defects in an embodiment of the present application; Figure 2 It is a schematic diagram of the overall structure of another state of a detection device for detecting defects in a packaging box according to an embodiment of the present application; Figure 3 is a schematic diagram of the connection structure of the sliding member; Figure 4 It is a schematic diagram of the connection structure of the transmission parts; Figure 5 It is a schematic diagram of the connection structure of the fastening member.

[0028] Figure numerals: 1, frame; 11, mounting table; 12, packaging box; 13, ear; 14, limit block; 2, detection component; 21, mounting block; 22, clamping member; 221, clamping block; 23, adjustment member; 231, adjustment motor; 24, tension sensor; 25, adjustment screw rod; 26, adjustment block; 3, sliding member; 31, sliding gear; 32, sliding rack; 33, adjustment bevel gear; 34, sliding bevel gear; 4, limit member; 41, first rotating rod ; 42. Second rotating rod; 43. Third rotating rod; 44. Co-moving rack; 45. First co-moving gear; 46. Second co-moving gear; 5. Base; 51. Sliding groove; 52. Sliding block; 53. Sliding spring; 54. Sliding cam; 6. Transmission member; 61. First tightening sleeve; 62. Second tightening sleeve; 63. Tightening member; 631. Tightening rod; 632. Locking rod; 633. Movable block; 634. Displacement block; 635. Displacement groove; 636. Accommodating block. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The present application embodiment discloses a detection device for detecting defects in packaging boxes. Figure 1 A detection device for detecting defects in a packaging box includes a vertically fixed frame 1 and a mounting platform 11 horizontally arranged on the frame 1, the mounting platform 11 is for placing a packaging box 12, a weight of standard mass is placed in the packaging box 12, and a limit block 14 is fixedly connected to the packaging box 12, two limit blocks 14 are provided, the two limit blocks 14 are arranged opposite to each other, and the extension direction of the two limit blocks 14 is consistent with the width direction of the packaging box 12, and the frame 1 is also provided with a detection component 2 for performing tear resistance detection on the ear 13 of the packaging box 12.

[0031] Reference Figure 1 and Figure 2 The detection component 2 includes a mounting block 21 which is lifted and arranged on the frame 1, a clamping member 22 which is arranged on the mounting block 21, and an adjusting member 23 which is used to lift and lower the mounting block 21 and the clamping member 22. The adjusting member 23 in the present application is an adjusting motor 231, which is fixed to the top of the frame 1 and the output end of the adjusting motor 231 passes through the top wall of the frame 1 and is fixedly connected to the mounting block 21. The mounting block 21 is arranged horizontally, and two groups of clamping members 22 are provided with the clamping members 22, and the two groups of clamping members 22 are symmetrically slidably arranged on the mounting block 21. Each group of clamping members 22 includes two clamping blocks 221 which are movable and close to each other, and a cavity for clamping the ear edge 13 is left between the two clamping blocks 221, and the two clamping blocks 221 are both rotatably connected to the mounting block 21, and the rotation axis of the clamping block 221 is consistent with the width direction of the packaging box 12, and the mounting block 21 is also provided with a sliding member 3 which is used to synchronously slide and adjust the two groups of clamping blocks 221.

[0032] An adjusting screw 25 is rotatably connected to the mounting block 21, and the rotation axis of the adjusting screw 25 is consistent with the length direction of the packaging box 12. An adjusting block 26 is threadedly mounted on the adjusting screw 25, and a clamping block 221 is rotatably connected to the adjusting block 26. In each group of clamping parts 22, one clamping block 221 is relatively fixed to the adjusting block 26 and only rotates relative to the adjusting block 26, and the other clamping block 221 is relatively slidably arranged on the adjusting block 26, and relatively slides while rotating relative to the adjusting block 26. Each group of adjusting blocks 26 is fixedly connected to a telescopic cylinder, and the output end of the telescopic cylinder is fixedly connected to a clamping block 221. Two groups of adjusting blocks 26 are provided, and the two groups of adjusting blocks 26 are symmetrically arranged at both ends of the adjusting screw 25, and both ends of the adjusting screw 25 are provided with external threads with the same pitch and opposite threads. And refer to Figure 2 and Figure 3 The sliding member 3 includes a sliding gear 31 rotatably connected to the mounting block 21, the rotation axis of the sliding gear 31 is consistent with the width direction of the packaging box 12, and a sliding rack 32 is fixedly connected to the frame 1, the sliding gear 31 is meshed with the sliding rack 32, an adjusting bevel gear 33 is coaxially fixedly connected to the axis of the sliding gear 31, and a sliding bevel gear 34 is coaxially provided on the adjusting screw rod 25, and the adjusting bevel gear 33 is meshed with the sliding bevel gear 34.

[0033] When the mounting platform 11 is lifted or lowered, the ear 13 of the packaging box 12 is lifted or lowered. At this time, the sliding rack 32 on the frame 1 does not move. When the mounting platform 11 is lifted or lowered, the sliding rack 32 drives the sliding gear 31 to rotate, the sliding gear 31 drives the sliding bevel gear 34 to rotate, and the sliding bevel gear 34 drives the adjusting bevel gear 33 to rotate, thereby driving the adjusting screw 25 to rotate. When the adjusting member 23 drives the mounting platform 11 to be lifted or lowered, the two clamping blocks 221 are driven to slide closer or slide away synchronously. In the process of the mounting platform 11 being lifted or lowered, the clamping blocks 221 are automatically driven to slide and rotate, thereby facilitating the synchronous clamping and lifting of the two ears 13 of the packaging box 12 and performing tear resistance performance testing.

[0034] At the same time, when carrying out short-distance transportation, for example, moving the packaging box 12 filled with liquor a short distance, the relevant personnel often do not adopt the method of holding, but use the two ears 13 to transport the packaging box 12 a short distance. At this time, during the transportation process, the packaging box 12 will shake with the movement of the relevant personnel, and the ears 13 are prone to breakage or tearing. In order to better simulate the working state when lifting or carrying the packaging box 12 loaded with heavy objects, so as to obtain accurate tear resistance test results, the mounting platform 11 is slidably arranged on the frame 1, and the sliding direction of the mounting platform 11 is consistent with the width direction of the packaging box 12. A sliding groove 51 is provided on the inner bottom side of the frame 1, and the layout direction of the sliding groove 51 is consistent with the width direction of the packaging box 12. The bottom of the mounting platform 11 is fixedly connected with a base 5, and the bottom of the base 5 is fixedly connected with a sliding block 52. The sliding block 52 is slidably arranged in the sliding groove 51, and the frame 1 is rotatably connected with a sliding cam 54 in the sliding groove 51. The outer peripheral wall of the sliding cam 54 is in contact with the side wall of the sliding block 52. The side of the sliding block 52 away from the sliding cam 54 is fixedly connected with a sliding spring 53. The sliding spring 53 is always in a compressed state. Under the action of the elastic restoring force of the sliding spring 53, the side wall of the sliding block 52 is always kept tightly against the outer peripheral wall of the sliding cam 54.

[0035] At the same time, for packaging boxes 12 of different lengths, when lifting the two ears 13, the angles of the personnel's hands are also different. For example, when carrying a packaging box 12 of a shorter length, the personnel's hands hold the ears 13 and rotate them outward. If the packaging box 12 of a shorter length is carried, the personnel's hands hold the ears 13 and rotate them inward. Therefore, in order to better simulate this usage scenario, two sets of sliding bevel gears 34 are provided, and the two sets of sliding bevel gears 34 are relatively symmetrically arranged, the tooth grooves of the two sets of sliding bevel gears 34 are opposite, and the two sets of sliding bevel gears 34 are opposite. A sleeve is fixedly connected between the two groups, and the sleeve is slidably mounted on the adjusting screw rod 25. The adjusting bevel gear 33 is located between the two groups of sliding bevel gears 34, and one of the two groups of sliding bevel gears 34 is meshed with the adjusting bevel gear 33, so that when one group of sliding bevel gears 34 is meshed with the adjusting bevel gear 33, the mounting platform 11 rises, and the two groups of clamping blocks 221 move away from each other. When the other group of sliding bevel gears 34 is meshed with the adjusting bevel gear 33, the mounting platform 11 rises, and the two groups of clamping blocks 221 move closer to each other, thereby simulating two different transport modes.

[0036] Furthermore, since the packaging box 12 will not shake when the packaging box 12 is lifted on one side, a limiting member 4 for limiting the mounting platform 11 is further provided on the frame 1 .

[0037] Reference Figure 3 , Figure 4 and Figure 5The limiting member 4 includes a first rotating rod 41, a second rotating rod 42, and a third rotating rod 43 which are rotatably connected to the frame 1. The first rotating rod 41, the second rotating rod 42, and the third rotating rod 43 are arranged in sequence and are all consistent with the rotation axis of the sliding cam 54, and the first rotating rod 41 is movably connected to the second rotating rod 42, and the second rotating rod 42 is movably connected to the third rotating rod 43. The sliding cam 54 is arranged on the third rotating rod 43. The first rotating rod 41 is coaxially connected to the first co-moving gear 45. The bottom side of the mounting platform 11 is fixedly connected to the co-moving rack 44. The frame 1 is rotated The first and second co-moving gears 45 and 46 are connected in a transmission manner. In the present application, the first and second co-moving gears 45 and 46 are driven by a chain. In other embodiments, the technicians can set the co-moving rack 44 to be longer and directly engaged with the first co-moving gear 45, or can drive the first and second co-moving gears 45 and 46 with a belt or directly engage with each other. As long as the lifting type of the mounting platform 11 can be achieved, the first rotating rod 41 can be driven to rotate.

[0038] At the same time, in order to realize the transmission between the first rotating rod 41 and the second rotating rod 42 and the transmission between the second rotating rod 42 and the third rotating rod 43, a transmission member 6 is also provided on the frame 1. It should be noted that the sliding cam 54 needs to be rotated only when both ears 13 of the packaging box 12 are clamped and lifted. Therefore, the gap between the first rotating rod 41 and the second rotating rod 42 corresponds to a group of clamping blocks 221, and the gap between the second rotating rod 42 and the third rotating rod 43 corresponds to another group of clamping blocks 221. The transmission member 6 includes a first abutting sleeve 61 slidably sleeved on the second rotating rod 42 and a second abutting sleeve 62 slidably sleeved on the third rotating rod 43. The side walls of the first abutting sleeve 61 and the second abutting sleeve 62 are both made of rubber material. The side wall of the first abutting sleeve 61 is movably fitted and pressed against the end side of the first rotating rod 41, and the side wall of the second abutting sleeve 62 is movably fitted and pressed against the end side of the second rotating rod 42.

[0039] At the same time, in order to realize the sliding adjustment operation of the first tightening sleeve 61 and the second tightening sleeve 62, a tightening piece 63 is provided on the frame 1, and the tightening piece 63 is provided with two groups. The two groups of tightening pieces 63 correspond to the first tightening sleeve 61 and the second tightening sleeve 62 respectively, and the arrangement method of the two groups of tightening pieces 63 is completely consistent. The following description is taken as an example of the tightening piece 63 corresponding to the first tightening sleeve 61. The tightening piece 63 includes a tightening rod 631 vertically arranged and rotatably connected to the frame 1. The rotation axis of the tightening rod 631 is consistent with the length direction of the packaging box 12. A locking rod 632 is slidably provided on the bottom side of the frame 1. One end of the locking rod 632 is rotatably and slidably provided on the tightening rod 631. The sliding direction of the locking rod 632 is consistent with the width direction of the packaging box 12. The other end side of the locking rod 632 is inclined, and the inclined side of the locking rod 632 is tightly fitted with the side wall of the first tightening sleeve 61.

[0040] The end of the clamping rod 631 away from the locking rod 632 is rotatably connected to a movable block 633, and the movable block 633 is movably protruded from the side wall of the frame 1, and a displacement block 634 is slidably arranged on the mounting table 11, and one end of the displacement block 634 is movably protruded from the side of the inner wall of the mounting block 21 close to the frame 1, and the protruding end of the displacement block 634 is movably fitted with the movable block 633, and the end of the displacement block 634 away from the movable block 633 is inclined, and an accommodating block 636 is elastically slidably arranged on the adjusting rod, and the sliding direction of the accommodating block 636 is consistent with the height direction of the frame 1, and the clamping The block 221 is rotatably connected to the accommodating block 636, and a displacement groove 635 is provided on the accommodating block 636. The inclined side of the displacement block 634 fits against the inner wall of the displacement groove 635, and the inclined side of the displacement block 634 is located on the top side of the displacement block 634. When the accommodating block 636 descends relative to the mounting block 21, the inner wall of the displacement groove 635 presses against the displacement block 634 and slides in the direction away from the mounting block 21, so that the displacement block 634 presses against the movable block 633, and the movable block 633 drives the pressing rod 631 to rotate, thereby slidingly adjusting the first pressing sleeve 61 / the second pressing sleeve 62.

[0041] The implementation principle of the detection device for detecting defects in a packaging box in the embodiment of the present application is as follows: when the tear resistance of the packaging box 12 is tested, the technician first adds a weight of standard mass into the packaging box 12, and places the packaging box 12 on the mounting table 11. At this time, the ear 13 on one side of the packaging box 12 is clamped by the set clamping block 221, and then the motor 231 is adjusted to drive the mounting block 21 to lift, so that the packaging box 12 on one side is lifted. In actual situations, when the ear 13 on one side is lifted, the ear 13 will move accordingly, and the ear 13 will always remain in a vertical state. Therefore, the clamping block 221 is rotated to drive the mounting block 21 to lift the ear 13 on one side. 221 and a clamping block 221 slidably arranged on the mounting block 21. During the lifting process of the packaging box 12, the sliding gear 31 on the mounting block 21 rotates under the meshing action of the sliding rack 32 on the frame 1, thereby driving the adjusting screw 25 to rotate, so that the clamping block 221 slides on the mounting block 21, simulating the use condition during unilateral lifting, and judging the tear resistance of the packaging box 12 according to the reading of the tension sensor 24. The clamping block 221 slides on the mounting block 21, so that the angle of the clamping block 221 changes with the change of the lifting height, thereby actually simulating the use condition of the packaging box 12 in the process of carrying heavy objects.

[0042] At the same time, when the two ears 13 of the packaging box 12 are lifted, the two groups of clamping blocks 221 clamp the two ears 13 respectively, and then the motor 231 is adjusted to drive the mounting block 21 to lift. At this time, during the lifting process of the mounting block 21, the two receiving blocks 636 are lowered relative to the mounting block 21, so that the displacement groove 635 is pressed against the displacement block 634, and the displacement block 634 protrudes from the surface of the mounting block 21 and presses against the movable block 633, so that the pressing rod 631 rotates, so that the locking rod 632 The first tightening sleeve 61 / the second tightening sleeve 62 are tightened, so that the first tightening sleeve 61 is tightened against the first rotating rod 41, and the second tightening sleeve 62 is tightened against the second rotating rod 42, thereby realizing the rotation transmission of the first rotating rod 41, the second rotating rod 42, and the third rotating rod 43. When the mounting block 21 rises, the synchronous rack 44 is driven to slide, thereby driving the first synchronous gear 45 and the second synchronous gear 46 to rotate, realizing the rotation of the sliding cam 54, thereby realizing the sliding of the mounting platform 11.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A detection device for packaging box defect detection, characterized in that: The invention comprises a frame (1) and a mounting platform (11) arranged on the frame (1), wherein the mounting platform (11) is for placing a packaging box (12), wherein a detection component (2) for performing tear detection on an ear edge (13) of the packaging box (12) is arranged on the frame (1), and wherein a limit block (14) is arranged on the mounting platform (11), wherein two groups of the limit blocks (14) are provided, and the side walls of the two groups of limit blocks (14) close to each other are movably fitted with the outer peripheral wall of the packaging box (12); The detection assembly (2) comprises a mounting block (21) which is liftably mounted on the frame (1), a clamping member (22) which is mounted on the mounting block (21), and an adjusting member (23) which is used to lift and lower the clamping member (22); the clamping member (22) comprises two clamping blocks (221) which are movable and close to each other, a cavity for placing the ear (13) is left between the two clamping blocks (221), the clamping block (221) is rotatably mounted on the mounting block (21), and a tension sensor (24) is provided on the clamping block (221); When the mounting block (21) rises, the clamping block (221) slides toward the center of the packaging box (12); The clamping members (22) are provided in two groups, the two groups of clamping members (22) are arranged opposite to each other, and the extension direction of the two groups of clamping members (22) is perpendicular to the extension direction of the two groups of limit blocks (14); The mounting platform (11) is slidably disposed on the frame (1), and a limiting member (4) for limiting the sliding of the mounting platform (11) is also provided on the mounting block (21).

2. A detection device for packaging box defect detection according to claim 1, characterized in that: An adjusting screw (25) is rotatably arranged on the mounting block (21), and an adjusting block (26) is threadedly mounted on the adjusting screw (25). External threads with the same pitch and opposite threads are provided at both ends of the adjusting screw (25), and two groups of adjusting blocks (26) are provided, and the two groups of adjusting blocks (26) correspond to the two groups of clamping members (22) in a one-to-one manner, and the clamping block (221) is rotatably arranged on the adjusting block (26). When the mounting block (21) is raised or lowered, a sliding member (3) for synchronously sliding and adjusting the clamping member (22) is further provided on the mounting block (21).

3. A detection device for packaging box defect detection according to claim 2, characterized in that: The sliding member (3) comprises a sliding gear (31) rotatably mounted on the mounting block (21); a sliding rack (32) is mounted on the frame (1); the sliding gear (31) meshes with the sliding rack (32); an adjusting bevel gear (33) is coaxially mounted on the adjusting screw rod (25); a sliding bevel gear (34) is coaxially mounted on the sliding gear (31); and the adjusting bevel gear (33) meshes with the sliding bevel gear (34).

4. The detection device for packaging box defect detection according to claim 3, characterized in that: A base (5) is slidably arranged on the frame (1), the mounting platform (11) is arranged on the base (5), the sliding direction of the base (5) is consistent with the arrangement direction of the two limit blocks (14), a sliding groove (51) is opened on the frame (1), a sliding block (52) is arranged on the bottom side of the base (5), the sliding block (52) is slidably arranged in the sliding groove (51), a sliding spring (53) is arranged in the sliding groove (51), the sliding spring (53) is located on one side of the sliding block (52), and a sliding cam (54) is rotatably arranged in the sliding groove (51), and the sliding cam (54) is in contact with a side of the sliding block (52) away from the sliding spring (53).

5. The detection device for detecting packaging box defects according to claim 4, characterized in that: The limiting member (4) comprises a first rotating rod (41), a second rotating rod (42) and a third rotating rod (43) which are rotatably arranged on the frame (1); the first rotating rod (41) is transmission-connected to an adjusting gear; the first rotating rod (41), the second rotating rod (42) and the third rotating rod (43) are arranged in sequence and spaced apart along the same axial direction; the sliding cam (54) is coaxially arranged on the third rotating rod (43); the first rotating rod (41) is movably transmission-connected to the second rotating rod (42); the third rotating rod (43) is The second rotating rod (42) is movably connected to the third rotating rod (43), and a transmission member (6) is provided on the mounting block (21) for transmitting the first rotating rod (41) to the second rotating rod (42) and the second rotating rod (42) to the third rotating rod (43). The gap between the first rotating rod (41) and the second rotating rod (42) corresponds to a group of clamping blocks (221), and the gap between the second rotating rod (42) and the third rotating rod (43) corresponds to another group of clamping blocks (221).

6. The detection device for packaging box defect detection according to claim 5, characterized in that: The transmission member (6) comprises a first abutting sleeve (61) slidably sleeved on the second rotating rod (42), the first abutting sleeve (61) being movably abutted against the end side of the first rotating rod (41), a second abutting sleeve (62) being slidably sleeved on the third rotating rod (43), the second abutting sleeve (62) being movably abutted against the end side of the second rotating rod (42), and a abutting member (63) for slidingly adjusting the first abutting sleeve (61) and the second abutting sleeve (62) being further provided on the frame (1).

7. The detection device for packaging box defect detection according to claim 6, characterized in that: The clamping member (63) is provided with two groups, and the two groups of the clamping members (63) correspond to the first clamping sleeve (61) and the second clamping sleeve (62) respectively. The clamping member (63) comprises a clamping rod (631) rotatably arranged on the frame (1) and a locking rod (632) slidably arranged on the frame (1). The end side of the locking rod (632) is inclined, and the inclined side of the locking rod (632) is in contact with the peripheral side of the first clamping sleeve (61) / the second clamping sleeve (62), and one end of the clamping rod (631) away from the first clamping sleeve (61) / the second clamping sleeve (62) is rotatably arranged on the locking rod (632).

8. The detection device for packaging box defect detection according to claim 7, characterized in that: A movable block (633) is rotatably provided at one end of the abutting rod (631) away from the locking rod (632), and the movable block (633) protrudes from the surface of the frame (1). A receiving block (636) is elastically slidably provided on the adjusting block (26), and the receiving block (636) is slidably provided on the adjusting block (26), and the sliding direction of the receiving block (636) is consistent with the height direction of the frame (1). The clamping block (221) is rotatably provided on the receiving block (636), and the mounting block (21) A displacement block (634) is slidably arranged on one side of the frame (1), one end of the displacement block (634) movably protrudes from the surface of the mounting block (21), the other end of the displacement block (634) is inclined, a displacement groove (635) is provided on the accommodating block (636), the inner side wall of the displacement groove (635) is in contact with the inclined side of the displacement block (634), and one end of the displacement block (634) movably protrudes from the mounting block (21) is movably in contact with the movable block (633); When a group of clamping blocks (221) clamps the ear edge (13) of the packaging box (12) for detection, when the mounting block (21) rises, the corresponding accommodating block (636) descends relative to the mounting block (21) to push out the corresponding displacement block (634), and the first abutting sleeve (61) / the second abutting sleeve (62) slides to the abutting position, and the first rotating rod (41) and the second rotating rod (42) / the second rotating rod (42) and the third rotating rod (43) rotate synchronously; When the two groups of clamping blocks (221) respectively clamp and detect the two ears (13) of the packaging box (12), when the mounting block (21) rises, the two groups of accommodating blocks (636) both descend relative to the mounting block (21) to push out the corresponding displacement blocks (634), and the first abutting sleeve (61) and the second abutting sleeve (62) both slide to the abutting position, thereby achieving synchronous rotation of the first rotating rod (41), the second rotating rod (42) and the third rotating rod (43).

Images