Foam box thickness accurate detection device

Abstract

The utility model relates to the technical field of foam box thickness, in particular to a foam box thickness accurate detection device, which comprises a mounting seat and a laser range finder arranged at the top of the mounting seat, and is characterized in that a detection rod is pushed by an electric push rod to be matched with the mounting seat to extrude and abut against the inner wall and the outer wall of a foam box; the movement of the detection rod can synchronously drive the laser range finder to move, so that the thickness between the inner wall and the outer wall of the foam box can be rapidly detected through the laser range finder, the whole detection process is few in operation steps, and the detection efficiency is high; when the detection rod is pushed by the electric push rod to approach the foam box and the pushing force is continuously applied, the spring is forced to be compressed, so that the distance sensor detects that the distance between the distance sensor and the detection rod is changed, and the change can be known; the detection data of the feedback signal of the distance sensor received by the laser range finder is the most accurate detection result.

Description

Technical Field

[0001] The utility model relates to the technical field of foam box thickness detection, in particular to a foam box thickness accurate detection device. Background Art

[0002] Foam boxes are box-type packaging containers made of foam plastic (porous plastic). Plastic foam is a plastic with many tiny pores inside. Foam boxes are often used in the transportation of fruits and the packaging of items.

[0003] The Chinese utility model patent with the authorization announcement number "CN217687082U" is specifically "a size detection device for foam box production". The specific implementation method of its specification records "placing the foam box on the detection table, starting the drive motor, and the drive motor drives the second threaded rod and the third threaded rod to rotate at the same time. Under the action of the threaded rotation thrust of the second threaded rod and the third threaded rod and the limiting action of the second sliding hole, the two second moving blocks and the clamping plate are driven to move closer or farther from each other to clamp the foam box. At the same time, the clamping plate compresses the spring. Under the elastic action of the spring and the sponge pad, the foam box can be protected. When the hand wheel is turned, the hand wheel drives the rotating rod to rotate. Since the two bevel gears are meshed with each other, the first threaded rod is driven to rotate. Under the rotation thrust of the thread of the first threaded rod and the limiting action of the sliding hole, the first moving block and the mounting plate are driven to move up and down, so that the partition at the bottom of the mounting plate contacts the top of the foam box. Then the laser rangefinder is started. The laser emitted by the laser rangefinder is reflected by the positioning plate and then received by the laser rangefinder, so that the size of the foam box can be measured, and the detection work is completed. By changing the placement of the foam box and repeating the above operation, the height, length, width and other dimensions of the foam box can be automatically measured.

[0004] The steps for detecting the size of the foam box are complicated. The bottom and the top of the foam box need to be clamped and fixed respectively, and then the size can be detected by the laser rangefinder. After the detection, the clamping of the bottom and the top of the foam box needs to be released, and the placement of the foam box needs to be adjusted. The other size data of the foam box can be obtained only after repeating the above steps. There is a problem of low detection efficiency. In addition, since the material of the foam box itself is relatively soft, although the foam box can be forced to be fixed by clamping, it is easy to cause the foam box to deform, making the detection result of the laser rangefinder inaccurate, and there is a problem of poor detection accuracy. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a device for accurately detecting the thickness of a foam box, which can effectively solve the problems of low detection efficiency and poor detection accuracy of the prior art.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a foam box thickness precision detection device, comprising a mounting seat and a laser rangefinder arranged on the top of the mounting seat, a baffle plate arranged on the top of the mounting seat and opposite to the position of the laser rangefinder emission port, a side of the baffle plate close to the laser rangefinder is flush with the inner side wall of the mounting seat, a detection component comprises a circular block and an L-shaped connecting block which are telescopically and slidably arranged between two opposite inner side walls of the mounting seat, a spring is arranged between the circular block and the L-shaped connecting block, a distance sensor which is arranged on one side of the circular block close to the L-shaped connecting block and connected with the laser rangefinder signal is arranged in the inner ring of the spring, the top of the L-shaped connecting block is detachably mounted with the laser rangefinder, and a detection rod which is flush with the position of the laser rangefinder emission port is arranged at the bottom.

[0008] Furthermore, a first slide groove is formed through the top of the mounting seat, second slide grooves are formed on two opposite inner groove walls of the first slide groove, and a handle is installed on the outer side wall of the mounting seat.

[0009] Furthermore, a limiting shaft is installed on one side of the detection rod close to the L-shaped connecting block, and the limiting shaft is slidably sleeved on one end away from the detection rod with a shaft cylinder installed on the inner side wall of the mounting seat.

[0010] Furthermore, the detection component also includes an electric push rod installed on the inner wall of the mounting seat and the output end of which is connected to the circular block.

[0011] Furthermore, a sliding rod is installed at the top end of the L-shaped connecting block, which slides through the first sliding groove and is inserted into the bottom of the laser rangefinder, and rolling assemblies are installed on both sides of the sliding rod.

[0012] Furthermore, a supporting roller which is rollingly mounted on the top of the mounting seat is installed at the bottom of the laser rangefinder.

[0013] Furthermore, the rolling components all include fixed seats respectively installed on the outer side walls of the slide rod and slidably installed in the corresponding second slide groove, and the fixed seats are embedded with a first roller rollingly installed on the inner groove wall of the second slide groove on the opposite side, and the top and bottom ends of the fixed seats are embedded with a second roller rollingly installed on the upper groove top and lower groove bottom of the second slide groove.

[0014] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] 1. The electric push rod pushes the detection rod to cooperate with the mounting seat to squeeze and resist the inner and outer walls of the foam box, and the movement of the detection rod will also drive the laser rangefinder to move synchronously, so that the thickness between the inner and outer walls of the foam box can be quickly detected by the laser rangefinder. The entire detection process has few operating steps and there is no need to adjust the position of the foam box, which has the characteristics of high detection efficiency;

[0016] 2. In order to prevent the detection rod from excessively squeezing the foam box, causing deformation of the foam box and affecting the detection accuracy of the laser rangefinder, a spring is installed between the output end of the electric push rod that drives the detection rod and the detection rod, and a distance sensor is set in the spring. When the detection rod is pushed close to the foam box by the electric push rod and continues to apply thrust, the spring will be forced to compress, so that the distance sensor detects a change in the distance between the detection rod and the detection rod. It can be known that the detection data of the laser rangefinder receiving the feedback signal from the distance sensor is the most accurate detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model 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 utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 This is a schematic diagram of the installation structure of the L-shaped connecting block of the utility model;

[0021] Figure 4 This is a schematic diagram of the rolling assembly structure of the utility model.

[0022] The numbers in the figure represent: 1. mounting seat; 11. first slide groove; 12. baffle; 13. shaft cylinder; 14. limit shaft; 15. handle; 2. electric push rod; 21. round block; 22. L-shaped connecting block; 23. spring; 24. distance sensor; 25. detection rod; 26. slide rod; 3. laser rangefinder; 31. support roller; 4. rolling assembly; 41. fixing seat; 42. first roller; 43. second roller. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model is further described below in conjunction with embodiments.

[0025] Example 1

[0026] Reference Figure 1-4 , which is the first embodiment of the utility model, discloses a foam box thickness precision detection device, including a mounting seat 1 and a laser rangefinder 3 arranged on the top of the mounting seat 1, a baffle 12 is installed on the top of the mounting seat 1 and is opposite to the position of the emission port of the laser rangefinder 3, so as to conveniently reflect the laser signal emitted by the laser rangefinder 3, and the baffle 12 is flush with the inner wall of the mounting seat 1 on the side close to the laser rangefinder 3 to ensure the accuracy of the detection result, and the detection component includes a circular block 21 and an L-shaped connecting block 22 which are telescopically and slidably installed between the two opposite inner walls of the mounting seat 1, and a spring 23 is installed between the circular block 21 and the L-shaped connecting block 22, and the spring 23 is installed between the circular block 21 and the L-shaped connecting block 22. The elastic force value of 23 is smaller than the pressure value at which the foam box is deformed. Therefore, when the spring 23 and the detection rod 25 are squeezed, the detection rod 25 contacts the outer wall of the foam box, so the spring 23 is squeezed first. A distance sensor 24 is provided in the inner circle of the spring 23, which is installed on the side of the circular block 21 close to the L-shaped connecting block 22 and connected to the signal of the laser rangefinder 3. The distance sensor 24 is used to monitor in real time whether the spring 23 is compressed and deformed. The top of the L-shaped connecting block 22 is detachably mounted with the laser rangefinder 3, and the bottom is equipped with a detection rod 25 flush with the transmitting port position of the laser rangefinder 3 to ensure accurate detection results.

[0027] Example 2

[0028] Reference Figure 1-4, which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: a first slide groove 11 is provided through the top of the mounting seat 1, and second slide grooves are provided on the two opposite inner groove walls of the first slide groove 11. A handle 15 is installed on the outer wall of the mounting seat 1 to facilitate holding the detection device. A limit shaft 14 is installed on the side of the detection rod 25 close to the L-shaped connecting block 22. The limit shaft 14 is slidably inserted into the end of the detection rod 25 away from the detection rod 25. The shaft cylinder 13 is installed on the inner wall of the mounting seat 1 to improve the stability of the telescopic sliding of the detection rod 25. The detection component also includes an electric push rod 2 installed on the inner wall of the mounting seat 1 and the output end is connected to the circular block 21. The top of the L-shaped connecting block 22 is installed with a sliding Rod 26, rolling components 4 are installed on both sides of the slide bar 26, and a supporting roller 31 rollingly installed on the top of the mounting seat 1 is installed at the bottom of the laser rangefinder 3, which preliminarily reduces the pushing resistance of the electric push rod 2 and prevents the spring 23 from deforming during the movement and adjustment of the detection rod 25. The rolling components 4 include fixed seats 41 respectively installed on the outer side walls of the slide bar 26 and slidably installed in the corresponding second slide groove. The fixed seats 41 are embedded with a first roller 42 rollingly installed on the inner groove wall of the second slide groove on the opposite side, and the top and bottom ends of the fixed seats 41 are embedded with second rollers 43 rollingly installed on the upper groove top and the lower groove bottom of the second slide groove, which further reduces the pushing resistance of the electric push rod 2 and prevents the spring 23 from deforming during the movement and adjustment of the detection rod 25.

[0029] The remaining structures are the same as those of Example 1.

[0030] The working principle of the utility model is as follows:

[0031] First, extend one side of the mounting base 1 into the inner cavity of the foam box to be tested and attach it to the inner cavity wall of the foam box;

[0032] Secondly, the electric push rod 2 is started again to push the circular block 21, the spring 23 and the L-shaped connecting block 22 to move synchronously, thereby driving the detection rod 25 to gradually approach the outer wall of the foam box, and at this time, the laser rangefinder 3 also gradually approaches the baffle 12. At this time, the laser rangefinder 3 is turned on to continuously monitor the distance change between the baffle 12;

[0033] Finally, after the detection rod 25 is squeezed and collides with the outer wall of the foam box, the electric push rod 2 continues to push. At this time, since the detection rod 25 has already collided with the outer wall of the foam box, it should not be pushed. However, since the foam box itself is soft and easy to deform, the detection rod 25 will still be squeezed and pushed. However, since a spring 23 is connected between the detection rod 25 and the output end of the electric push rod 2, and the elastic force value of the spring 23 is less than the pressure value required for the foam box to deform, the spring 23 will be forced to compress first. When the spring 23 is forced to compress, the distance between the distance sensor 24 located in the spring 23 and the detection rod 25 will also change and be fed back to the laser rangefinder 3. Therefore, the value monitored by the laser rangefinder 3, which is closest to the feedback signal of the distance sensor 24, is the precise thickness of the foam box.

[0034] 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 replace some of the technical features therein by equivalents. 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. A foam box thickness precision detection device, comprising a mounting seat (1) and a laser rangefinder (3) arranged on the top of the mounting seat (1), characterized in that: Also includes: A baffle (12) is mounted on the top of the mounting seat (1) and is opposite to the emission port of the laser rangefinder (3), wherein the side of the baffle (12) close to the laser rangefinder (3) is flush with the inner wall of the mounting seat (1); The detection component comprises a circular block (21) and an L-shaped connecting block (22) which are telescopically and slidably mounted between two opposite inner side walls of a mounting seat (1); a spring (23) is mounted between the circular block (21) and the L-shaped connecting block (22); a distance sensor (24) is arranged in the inner ring of the spring (23) and is mounted on a side of the circular block (21) close to the L-shaped connecting block (22) and is connected to the signal of a laser rangefinder (3); the top end of the L-shaped connecting block (22) is detachably mounted on the laser rangefinder (3), and the bottom end is mounted with a detection rod (25) which is flush with the position of an emission port of the laser rangefinder (3).

2. The device for accurately detecting the thickness of a foam box according to claim 1, characterized in that: A first sliding groove (11) is formed through the top of the mounting seat (1), and second sliding grooves are formed on two opposite inner groove walls of the first sliding groove (11). A handle (15) is installed on the outer side wall of the mounting seat (1).

3. The device for accurately detecting the thickness of a foam box according to claim 1, characterized in that: A limit shaft (14) is installed on the side of the detection rod (25) close to the L-shaped connection block (22), and the end of the limit shaft (14) away from the detection rod (25) is slidably inserted into a shaft cylinder (13) installed on the inner side wall of the mounting seat (1).

4. The device for accurately detecting the thickness of a foam box according to claim 1, characterized in that: The detection assembly also includes an electric push rod (2) which is mounted on the inner wall of the mounting seat (1) and has an output end connected to the circular block (21).

5. The device for accurately detecting the thickness of a foam box according to claim 2, characterized in that: A slide bar (26) is installed at the top end of the L-shaped connecting block (22), which slides through the first slide groove (11) and is inserted into the bottom of the laser rangefinder (3). Rolling assemblies (4) are installed on both sides of the slide bar (26).

6. The device for accurately detecting the thickness of a foam box according to claim 1, characterized in that: A supporting roller (31) which is rollingly mounted on the top of the mounting seat (1) is installed at the bottom of the laser rangefinder (3).

7. The device for accurately detecting the thickness of a foam box according to claim 5, characterized in that: The rolling components (4) each include a fixed seat (41) respectively mounted on the outer wall of the slide rod (26) and slidably mounted in the corresponding second slide groove, a first roller (42) rollingly mounted on the inner groove wall of the second slide groove is embedded and mounted on the side away from the fixed seat (41), and a second roller (43) rollingly mounted on the upper groove top and the lower groove bottom of the second slide groove is embedded and mounted on the top and bottom ends of the fixed seat (41).

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