One-piece injection molded tray

Abstract

This application relates to an integrated injection-molded pallet, comprising a pallet and cover plates. The pallet consists of a support surface and support legs, which are integrally injection molded. Nine support legs are provided, evenly distributed on the bottom wall of the support surface. Lower reinforcing ribs are injection molded between adjacent support legs, with transverse and longitudinal ribs intersecting at the bottom to form a grid-like structure. Two symmetrically arranged demolding holes are formed through the support surface. These demolding holes are necessary for the demolding mechanism to eject the pallet from the mold during the injection molding process. Two cover plates are provided, detachably installed within the two demolding holes to seal them and maintain the flatness and integrity of the support surface. This application achieves integrated injection molding of the pallet using large injection molding equipment, while the cover plates are produced using smaller injection molding equipment. This avoids occupying the production resources of large equipment, reduces the number of equipment and usage frequency, and lowers equipment investment and maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of pallet manufacturing technology, and specifically to an integrated injection molded pallet. Background Technology

[0002] In the field of pallet manufacturing technology, the manufacturing process of injection-molded pallets has always been a key focus of the industry. Currently, traditional injection-molded pallet production technology faces many problems that urgently need to be solved. These problems restrict the development of pallet manufacturers and also affect the market competitiveness of their products.

[0003] In existing technologies, the flat top structure and the grid-shaped support structure at the bottom of a pallet cannot be integrally injection molded using a single device. Typically, the top flat end face of the pallet is molded using a single large injection molding machine, and then the bottom support legs and connecting ribs (forming the grid-shaped structure) are injection molded separately using a second large machine. This requires the use of two large injection molding machines and different injection molds, significantly increasing maintenance and energy costs. After injection molding, the two parts must be joined together by heat welding, adhesive bonding, or mechanical connection. This process not only requires additional steps but may also lead to insufficient joint strength and appearance defects. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated injection molded tray.

[0005] The integrated injection molded pallet provided in this application adopts the following technical solution:

[0006] An integrated injection-molded pallet includes a pallet and a cover plate. The pallet includes a support surface and support legs. Multiple support legs are provided and are evenly distributed on the bottom wall of the support surface. The support surface and support legs are integrally molded. Lower ribs are integrally injection-molded between the support legs. The lower ribs are arranged horizontally and vertically to form a grid structure. Demolding holes for demolding are opened on the support surface, and the cover plate is detachably installed in the demolding holes.

[0007] By adopting the above technical solution, the pallet is integrally injection molded using large injection molding equipment, reducing the number of machines and their usage frequency, and lowering equipment investment and maintenance costs. The end cap is used to seal the demolding holes, maintaining the flatness and integrity of the pallet's end face. Simultaneously, the end cap is produced using a small injection molding machine, avoiding the use of large equipment's production resources and further reducing equipment operating costs. This avoids the cumbersome process of using two large injection molding machines to separately mold and then splice the parts, reducing the number of machines and their usage frequency, and lowering equipment investment and maintenance costs; at the same time, it avoids problems such as insufficient joint strength and appearance defects caused by splicing, improving product quality.

[0008] Preferably, the cover plate has protruding structures at both ends, and connecting holes are provided on the protruding structures; the support surface has installation channels in the direction perpendicular to the support feet, the number of installation channels is opposite to the number of connecting holes, and the installation channels are provided through the demolding holes.

[0009] By adopting the above technical solution, when the cover plate is installed into the demolding hole, the connecting holes on the protruding structure can be precisely aligned with the installation channel, which facilitates the subsequent installation of steel pipes, makes the installation and disassembly of the cover plate convenient, and enhances the stability of the connection between the cover plate and the pallet body.

[0010] Preferably, a steel pipe is provided in the installation channel, and when the cover plate is installed in the demolding hole, the steel pipe passes through the installation channel and the connection hole.

[0011] By adopting the above technical solution, the steel pipe installation further enhances the connection strength between the cover plate and the pallet. The steel pipe passes through the installation channel and the connection holes on the cover plate, making the connection between the cover plate and the pallet more secure and improving the overall structural strength and compressive strength of the pallet. This design is particularly suitable for scenarios requiring the support of heavy goods or multi-layer stacking, effectively preventing the pallet from deforming or being damaged under stress.

[0012] Preferably, a plug is fixedly installed inside the installation channel, and the plug is fixedly installed at the opening of the installation channel.

[0013] By adopting the above technical solution and setting a plug at the opening of the installation channel, the steel pipe can be prevented from sliding or falling off along the installation channel during use, ensuring that the steel pipe is always in the correct installation position and continuously plays the role of strengthening the connection and improving the structural strength.

[0014] Preferably, the plug has a through-hole for fixing, and the support surface has a through-hole for mounting, the mounting hole corresponding to and communicating with the fixing hole.

[0015] By adopting the above technical solution, the corresponding design of the mounting holes and fixing holes allows the plug to be firmly fixed in the installation channel using fixing pins and bolts or other fixing methods, ensuring the stability of the steel pipe and the plug. The mounting holes also facilitate the installation and removal of fixing pins, improving the maintainability of the pallet.

[0016] Preferably, a fixing pin is provided in the fixing hole and the mounting hole, and the fixing pin passes through the mounting hole and the fixing hole.

[0017] By adopting the above technical solution, the installation of the fixing pin further strengthens the connection between the end cap and the pallet. The fixing pin passes through the mounting hole and the fixing hole, which firmly fixes the end cap in the installation channel, preventing the end cap from shifting. This ensures the stability of the steel pipe in the installation channel, ensures a solid connection between the reinforcing rib and the pallet, and ultimately improves the overall stability and load-bearing capacity of the pallet structure, enabling the pallet to be used safely and reliably in various usage scenarios.

[0018] Preferably, both the support feet and the bottom wall of the support surface adopt a grid-like support structure.

[0019] By adopting the above technical solution, the grid support structure reduces the weight of the pallet while enhancing the structural strength and stability of the pallet by utilizing the mechanical properties of the grid structure.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The pallet is integrally injection molded using a single large injection molding machine, reducing the number of machines and their usage frequency, thus lowering equipment investment and maintenance costs. The end cap is used to seal the demolding holes, maintaining the flatness and integrity of the pallet's end face. Simultaneously, the end cap is produced using a small injection molding machine, avoiding the use of large equipment's production resources and further reducing equipment operating costs. This avoids the cumbersome process of using two large injection molding machines for separate molding and then splicing, reducing the number of machines and their usage frequency, and lowering equipment investment and maintenance costs; at the same time, it avoids problems such as insufficient joint strength and appearance defects caused by splicing, improving product quality.

[0022] 2. When the cover plate is installed into the demolding hole, the connecting holes on the raised structure can be precisely aligned with the installation channel, which facilitates the subsequent installation of steel pipes, makes it easy to install and remove the cover plate, and enhances the stability of the connection between the cover plate and the pallet body.

[0023] 3. The steel pipe installation further enhances the connection strength between the cover plate and the pallet. The steel pipe passes through the mounting channel and the connection holes on the cover plate, making the connection between the cover plate and the pallet more secure and improving the overall structural strength and compressive strength of the pallet. This design is particularly suitable for scenarios requiring the support of heavy goods or multi-layer stacking, effectively preventing the pallet from deforming or being damaged under stress. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the top of the display tray according to this utility model;

[0025] Figure 2 This utility model is a schematic diagram of the structure of the bottom of a display tray;

[0026] Figure 3This is an exploded view of this utility model;

[0027] Figure 4 yes Figure 1 Cross-sectional view at point AA.

[0028] Reference numerals: 1. Pallet; 11. Pallet surface; 12. Support leg; 2. Cover plate; 3. Lower stiffening plate; 31. Forklift ramp; 4. Demolding hole; 5. Protruding structure; 51. Connecting hole; 6. Installation channel; 7. Steel pipe; 8. Plug; 9. Fixing hole; 10. Mounting hole; 13. Fixing pin. Detailed Implementation

[0029] This application discloses an integrated injection molded pallet.

[0030] One-piece injection molded tray, see reference Figure 1 and Figure 2 The system includes a tray 1 and a cover plate 2. The tray 1 consists of a support surface 11 and support legs 12. The support surface 11 and the support legs are integrally injection molded. There are nine support legs 12, which are evenly distributed on the bottom wall of the support surface 11. Lower reinforcing plates 3 are injection molded between adjacent support legs 12. The horizontal and vertical lower reinforcing plates 3 are connected at the bottom to form a grid-like structure. Two demolding holes 4 are symmetrically arranged through the support surface 11. The demolding holes 4 are formed because the injection molding equipment needs a demolding mechanism to push the tray 1 out of the mold during the injection molding process. There are two cover plates 2, which are detachably installed in the two demolding holes 4 to close the demolding holes 4 and maintain the flatness and integrity of the support surface 11.

[0031] The tray 1 is formed by injection molding molten plastic material into a mold using a large injection molding machine. The plastic cools and solidifies within the mold to form the tray 1. The tray 1 includes a support surface 11, nine support legs 12, a grid-shaped lower rib plate 3, and two symmetrical demolding holes 4. The tray 1 is integrally injection molded using a large injection molding machine, reducing the number of machines and their usage frequency, and lowering equipment investment and maintenance costs. The two cover plates 2 are injection molded using a small injection molding machine. Using a small injection molding machine avoids occupying the production resources of large equipment, thereby reducing equipment usage costs.

[0032] Specifically, the bottom walls of both the support feet 12 and the support surface 11 adopt a hollow mesh structure, which not only reduces the weight of the pallet 1 and enhances the structural strength and stability, but also makes the pallet 1 more flexible to adapt to various usage scenarios, while reducing maintenance costs and extending service life. It is an optimized design that combines functionality, economy and environmental protection.

[0033] The lower stiffener 3, the support surface 11, and the support leg 12 enclose a forkhole space for the forklift forks to insert, allowing forklifts to enter from four directions. The side of the lower stiffener 3 closest to the support surface 11 has a forklift ramp 31. When the pallet is transferred by a forklift, the forklift ramp 31 can effectively reduce the contact area between the forklift and the pallet, thereby effectively reducing the collision between the forklift and the pallet and helping to avoid damage to the pallet during forklift handling.

[0034] Reference Figure 3 and Figure 4 Specifically, the cover plate 2 has protruding structures 5 at both ends, and connecting holes 51 are opened on the protruding structures 5 respectively; the support surface 11 has an installation channel 6 in the direction of the vertical support foot 12, one end of the installation channel 6 is open and the other end is closed, the number of installation channels 6 and connecting holes 51 are opposite, and the installation channel 6 is set through the demolding hole 4; the cover plate 2 is installed in the demolding hole 4, and the connecting holes 51 on the protruding structures 5 have the same outline as the installation channel 6 and are positioned opposite each other.

[0035] Furthermore, a steel pipe 7 is installed within the installation channel 6, passing through it. When the cover plate 2 is installed in the demolding hole 4, the steel pipe 7 aligns with and passes through the installation channel 6 via the connecting hole 51, thereby firmly fixing the cover plate 2 to the pallet 1. This design not only enhances the overall structural strength of the pallet 1 but also makes the installation and removal of the cover plate 2 more convenient, facilitating the maintenance and reuse of the pallet 1.

[0036] Furthermore, the length of the steel pipe 7 is less than the length of the installation channel 6. A plug 8 is installed at the opening of the installation channel 6. During installation, after the steel pipe 7 is inserted into the installation channel 6, the plug 8 is installed at the end of the installation channel 6 to seal the steel pipe 7 inside the installation channel 6.

[0037] Furthermore, a fixing hole 9 is provided through the plug 8, and an installation hole 10 communicating with the fixing hole 9 is provided through the support surface 11. A fixing pin 13 is provided in both the fixing hole 9 and the installation hole 10, and the fixing pin 13 passes through the installation hole 10 and the fixing hole 9, firmly fixing the plug 8 to the end of the installation channel 6. By setting the plug 8 and fixing it to the end of the installation pipe with the fixing pin 13, the stability of the steel pipe 7 in the installation channel 6 is ensured, and the displacement or detachment of the steel pipe 7 during use is prevented.

[0038] The implementation principle of the application embodiment is as follows: The pallet 1 is integrally injection molded using a large injection molding machine. The mold is designed as a rectangular structure with nine evenly distributed support feet 12 at the bottom. The support feet 12 are connected by horizontal and vertical lower stiffeners 3, forming a grid structure, which enhances the strength and stability of the pallet 1. The demolding hole 4 on the end face of the pallet 1 body is formed because the injection molding machine needs a demolding mechanism to push the pallet 1 out of the mold during the injection molding process. The end cap 2 has protruding structures 5 at both ends, with connecting holes 51 on the protruding structures 5. One side of the pallet 1 body has an installation channel 6, which is aligned with the connecting hole 51. The end cap 2 is installed into the demolding hole 4, and the connecting hole 51 is opposite to the installation channel 6 and fixed by a steel pipe 7, sealing the demolding hole 4 and maintaining the flatness and integrity of the end face of the pallet 1. By integrally injection molding the pallet 1 body using a large machine, the number of machines and the frequency of use are reduced, thus lowering equipment investment and maintenance costs. The end cap 2 is produced using a small injection molding machine, avoiding the occupation of production resources of large equipment and further reducing equipment usage costs.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrally injection molded tray characterized by, The device includes a tray (1) and a cover plate (2). The tray (1) includes a support surface (11) and support feet (12). Multiple support feet (12) are provided and are evenly distributed on the bottom wall of the support surface (11). The support surface (11) and the support feet (12) are integrally formed. Lower stiffening plates (3) are integrally injection molded between the support feet (12). The lower stiffening plates (3) are arranged horizontally and vertically to form a grid structure. The support surface (11) is provided with demolding holes (4) for demolding. The cover plate (2) is detachably installed in the demolding holes (4).

2. The one-piece injection molded tray of claim 1, wherein, The cover plate (2) has protruding structures (5) at both ends, and connecting holes (51) are opened on the protruding structures (5); the support surface (11) has an installation channel (6) in the direction perpendicular to the support foot (12), and the number of installation channels (6) is opposite to that of the connecting holes (51), and the installation channels (6) are set through the demolding hole (4).

3. The one-piece injection molded tray of claim 2, wherein, A steel pipe (7) is provided in the installation channel (6). When the cover plate (2) is installed in the demolding hole (4), the steel pipe (7) passes through the installation channel (6) and the connecting hole (51).

4. The one-piece injection molded tray of claim 2, wherein, A plug (8) is fixedly installed inside the installation channel (6), and the plug (8) is fixedly installed at the opening of the installation channel (6).

5. The one-piece injection molded tray of claim 4, wherein, A fixing hole (9) is provided through the plug (8), and an installation hole (10) is provided through the support surface (11). The installation hole (10) corresponds to and is connected to the fixing hole (9).

6. The one-piece injection molded tray of claim 5, wherein, A fixing pin (13) is provided in the fixing hole (9) and the mounting hole (10), and the fixing pin (13) passes through the mounting hole (10) and the fixing hole (9).

7. The one-piece injection molded tray of claim 1, wherein, Both the support foot (12) and the bottom wall of the support surface (11) adopt a grid-like support structure.

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