Detection device for pearl wool production
By combining a reciprocating conveyor belt and a telescopic device with a contact sensor, the problem of detecting uneven positions inside the pearl cotton is solved, enabling accurate measurement of any position inside the pearl cotton packaging box and improving the applicability and accuracy of the detection device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-07
AI Technical Summary
Existing testing equipment used in EPE foam production cannot effectively detect the dimensions of uneven areas inside the EPE foam, thus limiting the scope of its application.
The system employs a reciprocating conveyor belt and telescopic device in conjunction with a contact sensor. The sensor position is adjusted by a drive unit, and the positioning unit and adjustable positioning plate are used to position and fix the pearl cotton packaging box, enabling the detection of dimensions at any position inside the pearl cotton packaging box.
This improves the applicability of the testing device to the internal dimensions of EPE foam packaging boxes, enabling it to adapt to EPE foam packaging boxes of different sizes and shapes, reducing testing errors, and enhancing the flexibility and accuracy of testing.
Smart Images

Figure CN224095138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pearl cotton testing technology, specifically a testing device for pearl cotton production. Background Technology
[0002] EPE foam, also known as pearl cotton, is a new type of environmentally friendly packaging material. It is made of low-density polyethylene resin through physical foaming to create countless independent air bubbles. It overcomes the shortcomings of ordinary foam, such as fragility, deformation, and poor resilience. It has many advantages, such as water and moisture resistance, shock absorption, sound insulation, heat insulation, good plasticity, high toughness, recyclability, environmental friendliness, and strong impact resistance. It also has good chemical resistance and is widely used in the packaging industry.
[0003] A search revealed a patent, CN218380929U, which discloses a testing device for EPE foam production. This device includes a base, with a testing box fixedly connected to the top of the base. The testing box has an internal slot and a pressure regulating component inside. This component includes a first cylinder, a first pressure plate, and a second cylinder. The first cylinder is fixedly connected to the top of the testing box's inner cavity, and the piston rod of the first cylinder is fixedly connected to the first pressure plate. The bottom of the first pressure plate is fixedly connected to the second cylinder. This invention provides a testing device for EPE foam production that solves the problem that when measuring the thickness of finished EPE foam products, a measuring ruler is typically used. However, EPE foam is relatively soft, and measurements can result in significant errors, failing to meet user needs.
[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:
[0005] In reality, when EPE foam is used for packaging, its internal dimensions need to be adjusted to fit the product's external dimensions. Therefore, it is necessary to inspect the internal dimensions of the EPE foam. However, the internal surface of EPE foam may be uneven, and the aforementioned comparative documents can only measure the flat upper part. They cannot inspect the internal dimensions of the already formed EPE foam, thus reducing the applicability of EPE foam inspection. Therefore, there is an urgent need in the field to improve the inspection device for EPE foam production to overcome the shortcomings of the existing technology. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a testing device for EPE foam production, thereby improving the applicability of the testing device.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a testing device for EPE foam production, comprising a reciprocating conveyor belt capable of reciprocating transmission, two symmetrical bases on the upper part of the reciprocating conveyor belt, a placement plate on the upper part of the base for placing EPE foam packaging boxes, a positioning unit on the placement plate for positioning the EPE foam packaging boxes, an inverted U-shaped support frame on opposite sides of the reciprocating conveyor belt, a first telescopic device with a telescopic effect at the top inside the support frame, a support seat fixedly installed at the lower telescopic end of the first telescopic device, a second telescopic device with a telescopic effect at the lower part of the support seat, a contact sensor for measurement fixedly installed at the lower telescopic end of the second telescopic device, a main controller on one side of the support frame, a first drive unit on one side of the support frame for driving the first telescopic device to move along the width direction of the reciprocating conveyor belt, and a second drive unit for driving the second telescopic device to move along the length direction of the reciprocating conveyor belt at one end of the support seat.
[0008] Preferably, the positioning unit includes two symmetrical first positioning plates disposed on the upper part of the placement plate. Two symmetrical fixing plates adapted to the first positioning plates are fixedly installed on the upper part of the placement plate. A first adjusting threaded rod is threaded through and threaded to the fixing plate, one end of which is rotatably connected to the side of the first positioning plate. A first limiting nut is threaded to the side of the first adjusting threaded rod.
[0009] Preferably, each of the two first positioning plates has two symmetrical second positioning plates on its opposite sides. An adjusting block is fixedly installed on the side of the second positioning plate. An adjusting groove adapted to the adjusting block is opened on the side of the first positioning plate. A second adjusting threaded rod threadedly connected to the adjusting block is threaded through and rotatably connected to one end of the first positioning plate. A second limiting nut is threadedly connected to the side of the second adjusting threaded rod.
[0010] Preferably, the first drive unit includes a first drive motor fixedly installed on one side of the support frame, a first sliding block fixedly installed on the upper part of the first telescopic device, a first sliding groove adapted to the first sliding block being opened at the top of the support frame, a first adjusting screw threadedly connected to the first sliding block being rotatably connected in the first sliding groove, and the first drive motor being used to drive the first adjusting screw to rotate.
[0011] Preferably, the second drive unit includes a second drive motor fixedly installed at one end of the support seat, a second sliding block fixedly installed at the upper end of the second telescopic device, a second sliding groove adapted to the second sliding block being opened at the lower part of the support seat, a second adjusting screw threadedly connected to the second sliding block being rotatably connected in the second sliding groove, and the second drive motor being used to drive the second adjusting screw to rotate.
[0012] Preferably, a connector is fixedly installed on the lower part of the placement plate, and a connector slot adapted to the connector is opened on the upper part of the base.
[0013] Preferably, a T-shaped limiting rod is provided on each of the opposite sides of the base, and a limiting hole adapted to the end of the limiting rod is opened on the side of the plug-in seat. A spring sleeved on the side of the limiting rod is fixedly installed between the side of the limiting rod and the side of the base.
[0014] To address the shortcomings of existing technologies, this utility model provides a testing device for EPE foam production, overcoming the deficiencies of the prior art. The beneficial effects of this utility model are as follows:
[0015] 1. In this utility model, the position of the contact sensor is adjusted by the first driving unit and the second driving unit, which enables the detection of the size of any position on the top of the pearl cotton packaging box, thereby improving the applicability of the detection device.
[0016] 2. In this utility model, the pearl cotton packaging box is positioned by the first positioning plate and the second positioning plate, and the positions of the first positioning plate and the second positioning plate can be adjusted to prevent the pearl cotton packaging box from shaking when it is being tested. At the same time, it can position pearl cotton packaging boxes of different sizes, thereby improving the applicability of the testing device.
[0017] 3. In this utility model, the combination of the base, the plug-in seat, the limiting rod and the spring facilitates the installation or replacement of the placement plate when inspecting pearl cotton packaging boxes of different shapes.
[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description
[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a partial cross-sectional view of the support frame in this utility model.
[0022] Figure 3 This is a schematic diagram of the structure of the first positioning plate in this utility model;
[0023] Figure 4 This is a cross-sectional structural diagram of the placement plate and other components in this utility model;
[0024] Figure 5 for Figure 2Enlarged structural diagram at point A in the middle;
[0025] Figure 6 for Figure 3 Enlarged structural diagram at point B;
[0026] Figure 7 for Figure 4 Enlarged structural diagram at point C.
[0027] In the diagram: 1. Reciprocating conveyor belt; 2. Base; 3. Placement plate; 4. Pearl cotton packaging box; 5. Positioning unit; 6. Bearing frame; 7. First telescopic device; 8. Bearing seat; 9. Second telescopic device; 10. Contact sensor; 11. Main controller; 12. First drive unit; 13. Second drive unit; 14. First positioning plate; 15. Fixing plate; 16. First adjusting threaded rod; 17. First limit nut; 18. Second positioning plate; 19. Adjusting block; 20. Adjusting groove; 21. Second adjusting threaded rod; 22. Second limit nut; 23. First drive motor; 24. First sliding block; 25. First sliding groove; 26. First adjusting screw; 27. Second drive motor; 28. Second sliding block; 29. Second sliding groove; 30. Second adjusting screw; 31. Insertion seat; 32. Insertion groove; 33. Limiting rod; 34. Limiting hole; 35. Spring. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1
[0030] Please see Figures 1-7A testing device for EPE foam production includes a reciprocating conveyor belt 1 capable of reciprocating transmission. Two symmetrical bases 2 are located on the upper part of the reciprocating conveyor belt 1. A placement plate 3 is located on the upper part of each base 2, for placing EPE foam packaging boxes 4. A positioning unit 5 for positioning the EPE foam packaging boxes 4 is located on the placement plate 3. An inverted U-shaped support frame 6 is located on opposite sides of the reciprocating conveyor belt 1. A first telescopic device 7 with a telescopic effect is located at the top inside the support frame 6. A support seat 8 is fixedly installed at the lower telescopic end of the first telescopic device 7. A second telescopic device 9 with a telescopic effect is located at the lower telescopic end of the second telescopic device 9. A contact sensor 10 for measurement is fixedly installed at the lower telescopic end of the second telescopic device 9. A main controller 11 is located on one side of the support frame 6. A first drive unit 12 for driving the first telescopic device 7 to move along the width direction of the reciprocating conveyor belt 1 is located on one side of the support frame 6. A drive unit 12 for driving the second telescopic device 9 is located at one end of the support seat 8. The second drive unit 13 moves along the length of the reciprocating conveyor belt 1. The first drive unit 12 includes a first drive motor 23 fixedly installed on one side of the support frame 6. A first sliding block 24 is fixedly installed on the upper part of the first telescopic device 7. A first sliding groove 25 adapted to the first sliding block 24 is opened in the top of the support frame 6. A first adjusting screw 26 threadedly connected to the first sliding block 24 is rotatably connected in the first sliding groove 25. The first drive motor 23 is used to drive the first adjusting screw 26 to rotate. The second drive unit 13 includes a second drive motor 27 fixedly installed on one end of the support seat 8. A second sliding block 28 is fixedly installed on the upper end of the second telescopic device 9. A second sliding groove 29 adapted to the second sliding block 28 is opened in the lower part of the support seat 8. A second adjusting screw 30 threadedly connected to the second sliding block 28 is rotatably connected in the second sliding groove 29. The second drive motor 27 is used to drive the second adjusting screw 30 to rotate.
[0031] In this embodiment, the specific implementation method is as follows: When it is necessary to detect the internal cavity size of the completed pearl cotton packaging box 4, the pearl cotton packaging box 4 to be detected is placed on the upper part of the placement plate 3, and the pearl cotton packaging box 4 is positioned by the positioning unit 5. The reciprocating conveyor belt 1 is turned on to move the pearl cotton packaging box 4 to the bottom of the support seat 8. The main controller 11 pre-programs the position to be measured by the contact sensor 10 according to the internal size of the pearl cotton packaging box 4. The contact sensor 10 is a known technology. When the contact sensor 10 contacts the pearl cotton packaging box 4, the second telescopic device 9 stops and transmits the height data to the main controller 11. The main controller 11 displays the data after calculation. The position of the contact sensor 10 is adjusted by the first drive unit 12 and the second drive unit 13. The main controller 11 turns on the first drive motor 23. The output end of the device drives the first adjusting screw 26 to rotate. When the first adjusting screw 26 rotates, it drives the first sliding block 24 to slide in the first sliding groove 25. The first sliding block 24 drives the first telescopic device 7 to move along the width of the reciprocating conveyor belt 1. The second drive motor 27 is started. The output end of the second drive motor 27 drives the second adjusting screw 30 to rotate. When the second adjusting screw 30 rotates, it drives the second sliding block 28 to slide in the second sliding groove 29. The second sliding block 28 drives the second telescopic device 9 to move along the length of the reciprocating conveyor belt 1, adjusting the position of the contact sensor 10. Then the first telescopic device 7 is activated. The telescopic end of the first telescopic device 7 drives the carrier 8 to move down. The second telescopic device 9 is activated. The telescopic end of the second telescopic device 9 drives the contact sensor 10 to move down. This allows for the measurement of dimensions at different positions inside the pearl cotton packaging box 4, improving the applicability of the detection device.
[0032] Example 2
[0033] Please see Figure 1 , Figure 3 , Figure 4 and Figure 6 This embodiment includes the above embodiment, and further includes: the positioning unit 5 includes two symmetrical first positioning plates 14 disposed on the upper part of the placement plate 3. Two symmetrical fixing plates 15 adapted to the first positioning plates 14 are fixedly installed on the upper part of the placement plate 3. A first adjusting threaded rod 16 is threaded through and threaded to the fixing plate 15, one end of which is rotatably connected to the side of the first positioning plate 14. A first limiting nut 17 is threaded to the side of the first adjusting threaded rod 16. Two symmetrical second positioning plates 18 are provided on the opposite sides of the two first positioning plates 14. An adjusting block 19 is fixedly installed on the side of the second positioning plate 18. An adjusting groove 20 adapted to the adjusting block 19 is opened on the side of the first positioning plate 14. A second adjusting threaded rod 21 threaded to the adjusting block 19 is threaded through and rotatably connected to one end of the first positioning plate 14. A second limiting nut 22 is threaded to the side of the second adjusting threaded rod 21.
[0034] The specific implementation method in this embodiment is as follows: By rotating the first adjusting threaded rod 16, the first positioning plate 14 is moved, and the distance between the two first positioning plates 14 is adjusted to match the size of the pearl cotton packaging box 4. The first limiting nut 17 is locked to limit and fix the position of the first positioning plate 14. By rotating the second adjusting threaded rod 21, the threads of the second adjusting threaded rod 21 on the inner side of the adjusting groove 20 are symmetrical and opposite. When the second adjusting threaded rod 21 rotates, it drives the two adjusting blocks 19 to move towards or away from each other in the adjusting groove 20. The adjusting blocks 19 drive the second positioning plate 18 to move. Then, the second limiting nut 22 is locked to limit the position of the second positioning plate 18. When the pearl cotton packaging box 4 is tested, the pearl cotton packaging box 4 is inserted between the two first positioning plates 14 and several second positioning plates 18 to prevent the pearl cotton packaging box 4 from shaking when it is tested. At the same time, it can position pearl cotton packaging boxes 4 of different sizes, thus improving the applicability of the testing device.
[0035] Example 3
[0036] Please see Figure 4 and Figure 7 This embodiment includes all the above embodiments, and further includes: a plug-in seat 31 is fixedly installed on the lower part of the placement plate 3, a plug-in groove 32 adapted to the plug-in seat 31 is opened on the upper part of the base 2, a T-shaped limiting rod 33 is passed through the opposite sides of the base 2, a limiting hole 34 adapted to the end of the limiting rod 33 is opened on the side of the plug-in seat 31, and a spring 35 sleeved on the side of the limiting rod 33 is fixedly installed between the side of the limiting rod 33 and the side of the base 2.
[0037] The specific implementation method in this embodiment is as follows: When testing pearl cotton packaging boxes 4 of different shapes, different placement plates 3 need to be replaced. Pull the limiting rod 33 away from the base 2. When the limiting rod 33 moves, the spring 35 is stretched. Insert the plug seat 31 at the bottom of the placement plate 3 of the appropriate size into the plug slot 32. After the plug seat 31 is fully inserted into the plug slot 32, release the limiting rod 33. The spring 35 retracts and drives the limiting rod 33 to move. One end of the limiting rod 33 is inserted into the limiting hole 34 on the side of the plug seat 31. The installation of the placement plate 3 can be completed, which is convenient for the installation or replacement of the placement plate 3 later.
[0038] All of the electrical products mentioned above can be purchased from the market. They are mature technologies and have been fully disclosed, so they will not be repeated in the instruction manual. All of the electrical products mentioned above are equipped with power connection cords, and they are electrically connected to the main controller 11 and the 220V phase voltage (or 380V line voltage) through the power connection cords. The main controller 11 can be a conventional known device that can play a control role and can be programmed, such as a computer.
[0039] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A testing device for EPE foam production, characterized in that, The system includes a reciprocating conveyor belt (1) capable of reciprocating transmission. The reciprocating conveyor belt (1) has two symmetrical bases (2) on its upper part. A placement plate (3) is located on the upper part of each base (2). The placement plate (3) is used to place pearl cotton packaging boxes (4). A positioning unit (5) is provided on the placement plate (3) for positioning the pearl cotton packaging boxes (4). The reciprocating conveyor belt (1) has an inverted U-shaped support frame (6) on opposite sides. A first telescopic device (7) with a telescopic effect is located at the top inside the support frame (6). The lower end of the first telescopic device (7) is fixedly installed with… The support seat (8) has a second telescopic device (9) with a telescopic effect at its lower part. The lower end of the telescopic device (9) is fixedly installed with a contact sensor (10) for measurement. The support frame (6) has a main controller (11) on one side. The support frame (6) has a first drive unit (12) on one side for driving the first telescopic device (7) to move along the width direction of the reciprocating conveyor belt (1). The support seat (8) has a second drive unit (13) at one end for driving the second telescopic device (9) to move along the length direction of the reciprocating conveyor belt (1).
2. The testing device for pearl cotton production according to claim 1, characterized in that, The positioning unit (5) includes two symmetrical first positioning plates (14) located on the upper part of the placement plate (3). Two symmetrical fixing plates (15) adapted to the first positioning plates (14) are fixedly installed on the upper part of the placement plate (3). A first adjusting threaded rod (16) is threaded through and threaded to the fixing plate (15), one end of which is rotatably connected to the side of the first positioning plate (14). A first limiting nut (17) is threaded to the side of the first adjusting threaded rod (16).
3. The testing device for EPE foam production according to claim 2, characterized in that, Two symmetrical second positioning plates (18) are provided on the opposite sides of the two first positioning plates (14). An adjusting block (19) is fixedly installed on the side of the second positioning plate (18). An adjusting groove (20) adapted to the adjusting block (19) is opened on the side of the first positioning plate (14). A second adjusting threaded rod (21) that is threadedly connected to the adjusting block (19) is passed through and rotatably connected to one end of the first positioning plate (14). A second limiting nut (22) is threadedly connected to the side of the second adjusting threaded rod (21).
4. The testing device for pearl cotton production according to claim 1, characterized in that, The first drive unit (12) includes a first drive motor (23) fixedly installed on one side of the support frame (6), a first sliding block (24) fixedly installed on the upper part of the first telescopic device (7), a first sliding groove (25) adapted to the first sliding block (24) is opened in the top of the support frame (6), a first adjusting screw (26) threadedly connected to the first sliding block (24) is rotatably connected in the first sliding groove (25), and the first drive motor (23) is used to drive the first adjusting screw (26) to rotate.
5. The testing device for EPE foam production according to claim 1, characterized in that, The second drive unit (13) includes a second drive motor (27) fixedly installed at one end of the support seat (8), a second sliding block (28) fixedly installed at the upper end of the second telescopic device (9), a second sliding groove (29) adapted to the second sliding block (28) is opened at the lower part of the support seat (8), a second adjusting screw (30) threadedly connected to the second sliding block (28) is rotatably connected in the second sliding groove (29), and the second drive motor (27) is used to drive the second adjusting screw (30) to rotate.
6. The testing device for pearl cotton production according to claim 1, characterized in that, A plug-in socket (31) is fixedly installed on the lower part of the placement plate (3), and a plug-in slot (32) adapted to the plug-in socket (31) is opened on the upper part of the base (2).
7. A testing device for EPE foam production according to claim 6, characterized in that, The base (2) has T-shaped limiting rods (33) on both sides. The side of the plug-in seat (31) has a limiting hole (34) that matches the end of the limiting rod (33). A spring (35) is fixedly installed between the side of the limiting rod (33) and the side of the base (2).
Citation Information
Patent Citations
Detection device for pearl wool production
CN218380929U