A noise-reducing and wear-resistant assembly line pallet

By designing a buffer block flush with the outer contour of the pallet and a collision block to mute the impact, the wear and noise problems of the polyurethane buffer block are solved, achieving stable pallet flow and a quiet effect.

CN224429010UActive Publication Date: 2026-06-30SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

During the use of existing production line pallets, the polyurethane buffer blocks are prone to wear and deformation, which increases noise and affects the flow of pallets. How to reduce noise and extend the service life of the buffer blocks has become an urgent problem to be solved.

Method used

Design a noise-reducing and wear-resistant production line pallet. A buffer block is installed on the downstream side of the pallet bottom plate, flush with its outer contour, to avoid wear. A collision block is installed on the upstream side of the pallet, with the impact surface protruding from the outer contour of the pallet to achieve silent collision.

Benefits of technology

It effectively extends the service life of the buffer block, maintains the stability of the pallet shape, reduces flow noise, avoids pallet jamming, and improves the normal operation of the production line.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224429010U_ABST
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Abstract

This utility model discloses a noise-reducing and wear-resistant assembly line pallet in the field of assembly line pallet technology. It includes a pallet base plate, a buffer block, and a striking block. A first mounting groove is formed on one transverse side of the pallet base plate, and a second mounting groove is formed on the other transverse side of the pallet base plate, directly opposite the first mounting groove. The buffer block is installed in the first mounting groove, and the impact-bearing surface of the buffer block is coplanar with the end face of one transverse side of the pallet base plate. The striking block is installed in the second mounting groove, and the impact surface of the striking block protrudes outward by 1-5mm from the end face of the other transverse side of the pallet base plate, with the longitudinal dimension of the impact surface being smaller than the longitudinal dimension of the impact-bearing surface. This utility model avoids friction between the polyurethane buffer block and external equipment, reduces wear and deformation of the buffer block, extends the service life of the buffer block, and ensures the stability of the assembly line pallet's dimensions. It not only achieves noise reduction and quiet operation, making the pallet's quiet operation more durable, but also prevents pallet jamming or flow obstruction.
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Description

Technical Field

[0001] This utility model relates to the field of assembly line pallet technology, specifically to a noise-reducing and wear-resistant assembly line pallet. Background Technology

[0002] Assembly line pallets are a common type of carrying and transporting tool used in industrial production lines. They are mainly used to support and transport the movement of products or materials on the assembly line.

[0003] Assembly line pallets collide and generate significant noise during transport, necessitating noise reduction measures. For example... Figure 8 As shown, existing production line pallets all use polyurethane buffer blocks for noise reduction, and these buffer blocks are installed on the upstream side of the pallet flow direction, protruding from the pallet edge. However, in actual production activities, after a period of use, the polyurethane buffer blocks will deform due to wear. The changes in their dimensions after wear not only affect the pallet flow but also cause noise to continue to be generated.

[0004] Therefore, how to reduce the noise during pallet collisions and reduce the wear of polyurethane buffer blocks to achieve normal flow of pallets on the production line has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to provide a noise-reducing and wear-resistant assembly line pallet to reduce the noise when the pallet collides and extend the service life of the polyurethane buffer block, so as to ensure the normal operation of the assembly line pallet.

[0006] The technical solution adopted in this utility model is: a noise-reducing and wear-resistant assembly line pallet, comprising:

[0007] A pallet base plate, wherein a first mounting groove is formed on one lateral side of the pallet base plate, and a second mounting groove is formed on the other lateral side of the pallet base plate, which is directly opposite to the first mounting groove.

[0008] A buffer block is installed in the first mounting groove, and the impact-bearing surface of the buffer block is coplanar with the end face of the lateral side of the base plate of the pallet.

[0009] The impact block is installed in the second mounting groove. The impact surface of the impact block protrudes outward by 1-5mm from the end face of the other side of the base plate of the support plate, and the longitudinal dimension of the impact surface is smaller than the longitudinal dimension of the impacted surface.

[0010] Preferably, the impact surface of the impact block protrudes outward by 3mm from the end face on the other side of the base plate of the support plate.

[0011] Preferably, the second mounting groove has a connecting hole formed therein, and the impact block has a countersunk hole formed therein that matches the connecting hole. A fastener for detachably fixing the impact block to the base plate of the support plate is installed in the countersunk hole.

[0012] Preferably, the material of the impact block is metal.

[0013] Preferably, a pressure plate is placed on top of the buffer block, and the longitudinal ends of the pressure plate are detachably and fixedly connected to the bottom plate of the support plate.

[0014] Preferably, the base plate of the pallet has threaded holes located on both sides of the longitudinal direction of the first mounting groove, and the two ends of the pressure plate have through holes. A connecting screw is installed in the through hole, and the bottom end of the connecting screw is threaded into the threaded hole.

[0015] Preferably, the buffer block is made of polyurethane.

[0016] Preferably, the first mounting groove is a C-shaped groove, and the second mounting groove is a square groove.

[0017] Preferably, a blocking block is installed on one side of the pallet base plate, and the blocking block is located between two buffer blocks.

[0018] Preferably, a sensing block is installed on one side of the base plate of the pallet.

[0019] Preferably, a positioning pin sleeve is installed on the bottom plate of the pallet.

[0020] The beneficial effects of this utility model are:

[0021] This invention installs a soft, easily worn buffer block on the downstream side of the pallet base plate, with the impact surface of the buffer block flush with the outer contour of the pallet base plate. This prevents the buffer block from wearing down with external equipment during its movement on the assembly line, extending its service life, maintaining the stability of the pallet shape, and preventing pallet jamming. Simultaneously, a collision block is installed on the upstream side of the pallet base plate, with its impact surface protruding from the outer contour of the pallet base plate. This allows the collision block to strike the buffer block silently when two adjacent pallets collide, thereby reducing noise during pallet movement. Attached Figure Description

[0022] Figure 1 This is a first-view perspective three-dimensional schematic diagram of the noise-reducing and wear-resistant assembly line pallet of this utility model.

[0023] Figure 2 This is a second-view perspective three-dimensional schematic diagram of the noise-reducing and wear-resistant assembly line pallet of this utility model.

[0024] Figure 3This is a top view of the noise-reducing and wear-resistant assembly line pallet of this utility model;

[0025] Figure 4 for Figure 3 AA view in the middle;

[0026] Figure 5 This is a top view of the pallet base plate;

[0027] Figure 6 This is a 3D schematic diagram of the impact block;

[0028] Figure 7 This is a 3D schematic diagram of the buffer block;

[0029] Figure 8 This is a three-dimensional schematic diagram of an existing production line pallet.

[0030] Explanation of the reference numerals in the figure:

[0031] 10. Base plate of the tray; 11. First mounting groove; 12. Second mounting groove; 13. Connecting hole; 14. Threaded hole;

[0032] 20. Buffer block; 21. Impact surface;

[0033] 30. Impact block; 31. Impact surface; 32. Countersunk hole;

[0034] 40. Pressure plate;

[0035] 50. Blocking block;

[0036] 60. Induction block;

[0037] 70. Positioning pin sleeve. Detailed Implementation

[0038] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0039] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0042] The inventors discovered through research that there are two reasons for the wear and deformation of the polyurethane buffer block on the assembly line pallet: the first is the aging caused by the collision between the buffer block 20 and the pallet base plate 10; the second is that during the flow of the assembly line pallet, as the flow direction changes, the buffer block 20 will be located on one side of the pallet's flow direction, and the buffer block 20 protrudes from the outer contour of the pallet base plate 10, making it easy to rub against the external equipment on both sides of the assembly line, thereby accelerating the wear and deformation of the buffer block 20, which in turn shortens the service life of the buffer block 20. Once the buffer block 20 fails, the pallet will collide and generate a lot of noise during the flow process, thus losing its quiet effect.

[0043] Examples, such as Figures 1-7 As shown, a noise-reducing and wear-resistant assembly line pallet includes:

[0044] The pallet base plate 10 has a first mounting groove 11 formed on one lateral side and a second mounting groove 12 formed on the other lateral side, which is directly opposite to the first mounting groove 11.

[0045] The buffer block 20 is installed in the first mounting groove 11, and the impact surface 21 of the buffer block 20 is coplanar with the end face of the lateral side of the base plate 10.

[0046] The impact block 30 is installed in the second mounting groove 12. The impact surface 31 of the impact block 30 protrudes outward by 1-5mm from the end face of the other side of the base plate 10, and the longitudinal dimension of the impact surface 31 is smaller than the longitudinal dimension of the impact surface 21.

[0047] This invention installs a soft, wear-prone buffer block 20 on the downstream side of the pallet base plate 10, with the impact surface 21 of the buffer block 20 flush with the outer contour of the pallet base plate 10. This prevents the buffer block 20 from rubbing against external equipment during its flow on the assembly line, thereby reducing wear and extending its service life. It also maintains the stability of the assembly line pallet shape and prevents pallet jamming. Simultaneously, a collision block 30 is installed on the upstream side of the pallet base plate 10, with the impact surface 31 of the collision block 30 protruding from the outer contour of the pallet base plate 10. This allows the collision block 30 to silently impact the buffer block 20 when two assembly line pallets collide, thus reducing noise during pallet flow.

[0048] It should be noted that: the horizontal direction refers to... Figure 1 The direction of the single arrow in the image, the vertical direction refers to... Figure 1 The double arrows indicate that the pallet flows horizontally.

[0049] Specific embodiment 1, such as Figures 1-7 As shown, a noise-reducing and wear-resistant assembly line pallet includes: a pallet base plate 10, a buffer block 20, a collision block 30, a pressure plate 40, a blocking block 50, a sensing block 60, and a positioning pin sleeve 70.

[0050] A first mounting groove 11 is formed on one lateral side of the pallet base plate 10, that is, a first mounting groove 11 is provided on the downstream side of the pallet base plate 10. There are two first mounting grooves 11, and the two first mounting grooves 11 are spaced apart along the longitudinal direction. A second mounting groove 12 is formed on the other lateral side of the pallet base plate 10, that is, a second mounting groove 12 is provided on the upstream side of the pallet base plate 10. There are two second mounting grooves 12, and the two second mounting grooves 12 are spaced apart along the longitudinal direction. The first mounting groove 11 and the second mounting groove 12 are directly opposite each other, that is, the line connecting the first mounting groove 11 and the second mounting groove 12 is in the lateral direction.

[0051] The base plate 10 is used to install various tooling fixtures and can place or fix workpieces to be processed, such as air conditioner compressor housings.

[0052] There are two buffer blocks 20. The two buffer blocks 20 are fixedly installed in the two first mounting slots 11 in a one-to-one correspondence. The buffer block 20 has an impact surface 21. The impact surface 21 is coplanar with the end face of the pallet bottom plate 10 on the lateral side, that is, the impact surface 21 is coplanar with the downstream end face of the pallet bottom plate 10.

[0053] Preferably, the buffer block 20 is made of polyurethane, and the buffer block 20 is generally cylindrical in shape. The side of the buffer block 20 includes an arc surface and a flat surface. The two ends of the flat surface are fixedly connected to the two ends of the arc surface. The flat surface is the impact-bearing surface 21. The first mounting groove 11 on the base plate 10 is a C-shaped groove that matches the shape of the buffer block 20.

[0054] There are two pressure plates 40, which are placed on top of the buffer block 20 in a one-to-one correspondence, and the pressure plates 40 are detachably and fixedly connected to the base plate 10 of the support plate.

[0055] Specifically, the vertical dimension of the buffer block 20 is greater than the depth of the first mounting groove 11. The buffer block 20 is housed within the first mounting groove 11, and a pressure plate 40 is mounted on top of the buffer block 20. The pressure plate 40 is arranged entirely along the longitudinal direction. Multiple threaded holes 14 are provided on the base plate 10 of the pallet, located on both sides of the longitudinal direction of the first mounting groove 11. Through holes are provided at both ends of the pressure plate 40 in the longitudinal direction. Connecting screws (not shown in the figure) are installed in the through holes, and the bottom end of the connecting screws is threaded into the threaded hole 14, so that the two ends of the pressure plate 40 in the longitudinal direction are detachably and fixedly connected to the base plate 10 of the pallet.

[0056] There are two impact blocks 30, which are installed one-to-one in the second mounting groove 12. Each impact block 30 has an impact surface 31, which protrudes outward by 1-5mm from the end face of the pallet base plate 10 on the other side laterally. That is, the lateral distance between the impact surface 31 and the upstream end face of the pallet base plate 10 is 1-5mm. In the longitudinal direction, the position of the impact block 30 on the pallet base plate 10 is directly opposite the position of the buffer block 20 on the pallet base plate 10. The longitudinal dimension of the impact surface 31 is smaller than the longitudinal dimension of the impact surface 21, so that when the two pallets of the production line collide, the impact surface 31 of the impact block 30 collides with the impact surface 21 of the buffer block 20, and the impact surface 31 of the impact block 30 will not collide with the downstream end face of the pallet base plate 10, so as to achieve silent contact collision between the two pallets when the pallets are in circulation.

[0057] Preferably, the impact block 30 is made of metal and has a square shape, and the second mounting groove 12 is a square groove.

[0058] The impact surface 31 of the impact block 30 protrudes outward by 3mm from the end face on the other side of the pallet base plate 10, so that the assembly line pallet has the same shape and size as the existing assembly line pallet.

[0059] Specifically, a connecting hole 13 is provided in the second mounting groove 12 along the vertical direction, and a countersunk hole 32 is provided in the impact block 30 along the vertical direction. The countersunk hole 32 and the connecting hole 13 are in a one-to-one correspondence. A fastener (not shown in the figure) for detachably fixing the impact block 30 to the base plate 10 of the support plate is installed in the countersunk hole 32. The fastener is preferably a screw.

[0060] The blocking block 50 is installed on the lateral side of the pallet base plate 10 and is located between two buffer blocks 20. The blocking block 50 protrudes from the lower surface of the pallet base plate 10 so that when the pallet is flowing, the blocking block 50 can collide with the blocker on the assembly line, so that the pallet on the assembly line stops flowing, thereby allowing the required operation to be carried out.

[0061] The sensing block 60 is installed on one side of the pallet base plate 10 and is located at one end of the longitudinal direction of the pallet base plate 10. The sensing block 60 is used to sense external sensors to detect the position signal of the pallet.

[0062] The positioning pin sleeve 70 is installed on the pallet base plate 10, and there are two positioning pin sleeves 70. The positioning pin sleeve 70 can cooperate with the pallet lifting device on the production line to play the role of precise pallet positioning, so that the required operation can be carried out.

[0063] The noise reduction and wear resistance principle of the assembly line pallet of this utility model is as follows:

[0064] This invention ensures that the easily worn and relatively soft polyurethane buffer block 20 is flush with the outer contour of the pallet base plate 10, rather than protruding, thereby preventing the buffer block 20 from participating in the friction between the pallet base plate 10 and external equipment during its flow on the assembly line, thus reducing the wear of the polyurethane buffer block 20. A metal impact block 30 is installed on the other side of the pallet base plate 10. The impact block 30 can impact the buffer block 20 silently. The impact block 30 can also be heat-treated to make its surface wear-resistant. This not only solves the noise problem during pallet flow but also avoids the phenomenon of pallet jamming on the assembly line caused by changes in the pallet's shape and size.

[0065] Compared with the prior art, the present invention has at least the following beneficial technical effects:

[0066] This invention avoids friction between the polyurethane buffer block and external equipment, reduces wear and deformation of the buffer block, extends the service life of the buffer block, and ensures the stability of the dimensions of the conveyor plate. It not only has a noise reduction and quieting effect, making the quiet flow of the plate more durable, but also avoids plate jamming or flow obstruction.

[0067] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A noise-reducing and wear-resistant assembly line pallet, characterized in that, include: The pallet base plate (10) has a first mounting groove (11) formed on one side of its lateral direction, and a second mounting groove (12) formed on the other side of its lateral direction, which is directly opposite to the first mounting groove (11). A buffer block (20) is installed in the first mounting groove (11), and the impact surface (21) of the buffer block (20) is coplanar with the end face of the pallet bottom plate (10) on the lateral side. The impact block (30) is installed in the second mounting groove (12). The impact surface (31) of the impact block (30) protrudes outward by 1-5 mm from the end face of the other side of the base plate (10) and the longitudinal dimension of the impact surface (31) is smaller than the longitudinal dimension of the impact surface (21).

2. The noise-reducing and wear-resistant assembly line pallet according to claim 1, characterized in that, The impact surface (31) of the impact block (30) protrudes outward by 3mm from the end face of the other side of the base plate (10) laterally.

3. The noise-reducing and wear-resistant assembly line pallet according to claim 1, characterized in that, The second mounting groove (12) has a connecting hole (13) formed in it, and the impact block (30) has a countersunk hole (32) that matches the connecting hole (13). The countersunk hole (32) is equipped with a fastener for detachably fixing the impact block (30) to the base plate (10).

4. The noise-reducing and wear-resistant assembly line pallet according to claim 1, characterized in that, The material of the impact block (30) is metal.

5. A noise-reducing and wear-resistant assembly line pallet according to claim 1, characterized in that, A pressure plate (40) is placed on top of the buffer block (20), and the two longitudinal ends of the pressure plate (40) are detachably and fixedly connected to the bottom plate (10) of the support plate.

6. A noise-reducing and wear-resistant assembly line pallet according to claim 5, characterized in that, The base plate (10) of the pallet is provided with threaded holes (14), which are located on both sides of the longitudinal direction of the first mounting groove (11). The pressure plate (40) is provided with through holes at both ends of the longitudinal direction. A connecting screw is installed in the through hole, and the bottom end of the connecting screw is threaded into the threaded hole (14).

7. A noise-reducing and wear-resistant assembly line pallet according to claim 1, characterized in that, The buffer block (20) is made of polyurethane.

8. A noise-reducing and wear-resistant assembly line pallet according to claim 1, characterized in that, The first mounting slot (11) is a C-shaped slot, and the second mounting slot (12) is a square slot.

9. A noise-reducing and wear-resistant assembly line pallet according to claim 1, characterized in that, A blocking block (50) is installed on one side of the pallet base plate (10), and the blocking block (50) is located between two buffer blocks (20).

10. A noise-reducing and wear-resistant assembly line pallet according to claim 1, characterized in that, A sensor block (60) is installed on one side of the pallet base plate (10).

11. A noise-reducing and wear-resistant assembly line pallet according to claim 1, characterized in that, A positioning pin sleeve (70) is installed on the base plate (10) of the pallet.