Preparation process of plastic tray with built-in fiber ribs

Abstract

The invention relates to the technical field of plastic tray preparation, and discloses a preparation process of a plastic tray with built-in fiber reinforcements, which comprises the following steps: S1, adding the planted fiber reinforcements: putting the planted fiber reinforcements into a manufacturing device and fixing the planted fiber reinforcements; s2, mold closing, wherein movable molds on the manufacturing device are closed together; s3, injecting a plastic tray: injecting a raw material between the movable mold and the static mold, and solidifying and forming the plastic tray; and S4, demolding is conducted, specifically, limiting on the fiber bar planting frame body is relieved, then the movable mold and the static mold on the manufacturing device are separated, and finally the plastic tray is taken down. According to the preparation technology of the plastic tray with the built-in fiber ribs, after material injection operation is completed and raw materials are formed, the fiber rib planting body is embedded in the plastic tray, the fiber ribs are directly implanted in the plastic tray machining process, the dead weight of tray products can be greatly reduced, and the cost of heavy bearing trays and goods shelf trays is greatly reduced; and the strength of the tray product can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pallet preparation, and in particular to a preparation process of a plastic pallet with built-in fiber ribs. Background Art

[0002] Plastic pallets are a type of logistics unit used in conjunction with logistics equipment such as forklifts and shelves. They can be used to store, load and transport goods. They are one of the indispensable logistics equipment in modern logistics warehousing.

[0003] At present, heavy-duty load pallets and shelf pallets are manually installed with steel pipes after the pallets are produced to enhance the strength of the pallets and reduce deformation. However, steel pipes are heavy and costly, and the manual installation of steel pipes at a later stage is troublesome. In view of the above problems, the existing equipment needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a process for preparing a plastic pallet with built-in fiber ribs to solve the problem raised in the above background technology that currently, heavy-duty load pallets and shelf pallets are manually installed with steel pipes after the pallets are produced to enhance the strength of the pallets and reduce deformation, but the steel pipes are relatively heavy and the cost is relatively high, and the manual installation of the steel pipes at a later stage is relatively troublesome.

[0005] To achieve the above object, the present invention provides the following technical solution: a process for preparing a plastic pallet with built-in fiber ribs, comprising the following steps: S1: Adding fiber-planted ribs: placing fiber-planted ribs into the manufacturing device and fixing them; S2, closing the mold: closing the movable mold on the manufacturing device with the movable mold; S3, injecting plastic pallet: injecting raw materials into the space between the moving mold and the static mold, and wait for the plastic pallet to solidify and form; S4, demoulding: release the limit of the fiber reinforcement frame, then separate the dynamic mold and the static mold on the manufacturing device, and finally remove the plastic tray.

[0006] Preferably, the manufacturing device involved in steps S1-S4 includes a bracket, and a static mold mechanism is fixed on the inner wall of one side of the bracket, the fiber implantation ribs and their installation mechanism are snap-connected to the inner wall of the static mold mechanism, and the fiber implantation ribs and their installation mechanism are suction-connected to the static mold mechanism, and a dynamic mold mechanism is fixed on the other side of the bracket, and the dynamic mold mechanism passes through the other side of the bracket.

[0007] Preferably, the static mold mechanism includes a static mold body, and an injection valve is fixed on the top of the static mold body, a first electric telescopic rod is fixed on the inner wall of one side of the bracket, and a first piston is fixed at one end of the first electric telescopic rod, a first oil groove is opened in the side wall of the static mold body, and the first piston is slidably connected in the first oil groove.

[0008] Preferably, a main channel is opened in the side wall of the static mold body, and the main channel is connected with the first oil groove through a connecting hole. A first branch channel is opened on the inner wall of the static mold body, and the first branch channel is connected with the main channel.

[0009] Preferably, a second piston is slidably connected in the first branch channel, a push rod is fixed on the inner side of the second piston, and an electromagnet is fixed on the inner end of the push rod.

[0010] Preferably, the fiber-implanted reinforcement and its installation mechanism include a fiber-implanted reinforcement body, and a sleeve is fixed to the outside of the fiber-implanted reinforcement body, a locking block is slidably connected inside the sleeve, and an iron block is fixed to the outer end of the locking block, and the iron block is suction-connected to the electromagnet.

[0011] Preferably, the movable mold mechanism includes a second electric telescopic rod, and the second electric telescopic rod is fixed to the other side of the bracket, the second electric telescopic rod passes through the other side of the bracket and is connected to the movable plate, and the movable mold body is fixed to one side of the movable plate.

[0012] Preferably, a third electric telescopic rod is fixed on the movable plate, and the third electric telescopic rod passes through the movable plate and one side of the movable mold body and is connected to the third piston. A second oil groove is opened in the movable mold body, and the third piston is slidably connected in the second oil groove.

[0013] Preferably, a hydraulic channel is opened in the movable mold body, and the hydraulic channel is connected to the second oil groove. A second branch channel is opened on the outer wall of the movable mold body, and the second branch channel is connected to the hydraulic channel. A fourth piston is slidably connected in the second branch channel, and a moving block is fixed to the outside of the fourth piston.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The preparation process of the plastic pallet with built-in fiber ribs can achieve the purpose of reducing the deadweight and improving the strength by using the mutual cooperation of the static mold body, the first branch channel, the electromagnet, the fiber rib body, the locking block, the iron block and the dynamic mold body. After the fiber rib body is placed in the static mold body and the electromagnet is energized, the electromagnet automatically absorbs the iron block, and the locking block automatically snaps into the first branch channel to lock the fiber rib body. After the dynamic mold body moves to the left and closes with the static mold body, the material can be injected between the static mold body and the dynamic mold body. After the injection operation is completed and the raw material is waited for to be formed, the fiber rib body is embedded in the plastic pallet. The device directly implants fiber ribs during the processing of the plastic pallet, which can greatly reduce the deadweight of the pallet product, greatly reduce the cost of heavy-duty load pallets and shelf pallets, and can greatly improve the strength of the pallet product. 2. The preparation process of the plastic pallet with built-in fiber ribs can achieve the purpose of rapid demoulding through the coordinated use of the first piston, the second piston, the push rod, the electromagnet, the sleeve, the locking block, the movable mold body, the third piston, the fourth piston and the moving block. After the injection molding operation is completed, the first piston moves to the right, and the second piston and the push rod move to the right to push the locking block back into the sleeve. After the electromagnet is powered off, the push rod can be withdrawn, and then the plastic pallet moves to the right together with the movable mold body, followed by the third piston moving to the right, the fourth piston and the moving block moving, and the moving block shrinking into the second branch pipe, and finally the demoulding operation can be taken down, and the demoulding operation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the fiber-planted reinforcement and its installation mechanism of the present invention; Figure 4 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle; In the figure: 1. bracket; 2. static mold mechanism; 201. static mold body; 202. injection valve; 203. first electric telescopic rod; 204. first oil tank; 205. first piston; 206. connecting hole; 207. main channel; 208. first branch channel; 209. second piston; 210. push rod; 211. electromagnet; 3. fiber implanting rib and its installation mechanism; 301. fiber implanting rib body; 302. sleeve; 303. locking block; 304. iron block; 4. dynamic mold mechanism; 401. second electric telescopic rod; 402. moving plate; 403. dynamic mold body; 404. third electric telescopic rod; 405. third piston; 406. second oil tank; 407. hydraulic channel; 408. second branch channel; 409. fourth piston; 410. moving block. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figures 1 to 5 The present invention provides a technical solution: a process for preparing a plastic pallet with built-in fiber ribs, comprising the following steps: S1: Adding fiber-planted ribs: placing fiber-planted ribs into the manufacturing device and fixing them; S2, closing the mold: closing the movable mold on the manufacturing device with the movable mold; S3, injecting plastic pallet: injecting raw materials into the space between the moving mold and the static mold, and wait for the plastic pallet to solidify and form; S4, demoulding: release the limit of the fiber reinforcement frame, then separate the dynamic mold and the static mold on the manufacturing device, and finally remove the plastic tray.

[0018] In this embodiment, as shown in the figure, the manufacturing device involved in steps S1-S4 includes a bracket 1, and a static mold mechanism 2 is fixed on the inner wall of one side of the bracket 1, and the fiber implanting ribs and their mounting mechanism 3 are snap-connected on the inner wall of the static mold mechanism 2, and the fiber implanting ribs and their mounting mechanism 3 are suction-connected to the static mold mechanism 2, and a dynamic mold mechanism 4 is fixed on the other side of the bracket 1, and the dynamic mold mechanism 4 runs through the other side of the bracket 1. The static mold mechanism 2 and the dynamic mold mechanism 4 are used in combination to make the product into a tray shape. During injection molding, the fiber implanting ribs and their mounting mechanism 3 will be embedded in the product, which can greatly improve the tensile strength of the product, greatly reduce the load deformation, and greatly reduce the cost.

[0019] In this embodiment, Figure 1 and Figure 2 As shown, the static mold mechanism 2 includes a static mold body 201, and an injection valve 202 is fixed on the top of the static mold body 201, a first electric telescopic rod 203 is fixed on the inner wall of one side of the bracket 1, and a first piston 205 is fixed at one end of the first electric telescopic rod 203, a first oil groove 204 is opened in the side wall of the static mold body 201, and the first piston 205 is slidably connected in the first oil groove 204. The first piston 205 can move left and right under the telescopic action of the first electric telescopic rod 203, and hydraulic oil is stored in the first oil groove 204. The first piston 205 moves rightward to press out the hydraulic oil in the first oil groove 204. After the dynamic mold mechanism 4 and the static mold mechanism 2 are closed together, the injection valve 202 can be opened to inject material between the dynamic mold mechanism 4 and the static mold mechanism 2.

[0020] In this embodiment, Figure 2 and Figure 4 As shown, a main channel 207 is opened in the side wall of the static mold body 201, and the main channel 207 is connected with the first oil groove 204 through the connecting hole 206. A first branch channel 208 is opened on the inner wall of the static mold body 201, and the first branch channel 208 is connected with the main channel 207. When the first piston 205 moves to the right, the hydraulic oil in the first oil groove 204 can be pressed into the main channel 207 and the first branch channel 208.

[0021] In this embodiment, Figure 2 and Figure 4As shown, a second piston 209 is slidably connected in the first branch channel 208, and a push rod 210 is fixed on the inner side of the second piston 209, and an electromagnet 211 is fixed on the inner end of the push rod 210. When the first piston 205 moves to the right, the second piston 209 moves under the action of oil pressure, thereby driving the push rod 210 to move.

[0022] In this embodiment, Figure 2 , Figure 3 and Figure 5 As shown, the fiber-implanted reinforcement and its installation mechanism 3 include a fiber-implanted reinforcement body 301, and a sleeve 302 is fixed on the outer side of the fiber-implanted reinforcement body 301, a locking block 303 is slidably connected in the sleeve 302, and an iron block 304 is fixed on the outer end of the locking block 303, and the iron block 304 is suction-connected to the electromagnet 211. When installing the fiber-implanted reinforcement body 301, the locking block 303 and the push rod 210 need to be aligned one by one. After the electromagnet 211 is energized, the electromagnet 211 automatically absorbs the iron block 304, and the locking block 303 is automatically stuck in the first branch channel 208, which is convenient for locking the fiber-implanted reinforcement body 301. Before demolding, the push rod 210 pushes the locking block 303 into the sleeve 302. After the electromagnet 211 is powered off and the push rod 210 is removed, the demolding operation can be performed.

[0023] In this embodiment, Figure 1 and Figure 2 As shown, the movable mold mechanism 4 includes a second electric telescopic rod 401, and the second electric telescopic rod 401 is fixed to the other side of the bracket 1, the second electric telescopic rod 401 passes through the other side of the bracket 1 and is connected to the movable plate 402, and a movable mold body 403 is fixed to one side of the movable plate 402, and the movable plate 402 can move left and right under the telescopic action of the second electric telescopic rod 401, thereby driving the movable mold body 403 to move left and right, which is convenient for using or removing the movable mold body 403.

[0024] In this embodiment, Figure 2 As shown, a third electric telescopic rod 404 is fixed on the movable plate 402, and the third electric telescopic rod 404 passes through the movable plate 402 and one side of the movable mold body 403 and is connected to the third piston 405. A second oil groove 406 is opened in the movable mold body 403, and the third piston 405 is slidably connected in the second oil groove 406. The third piston 405 can move left and right under the telescopic action of the third electric telescopic rod 404. The third piston 405 moves rightward to pump hydraulic oil into the second oil groove 406.

[0025] In this embodiment, Figure 1 and Figure 2As shown, a hydraulic channel 407 is provided in the movable mold body 403, and the hydraulic channel 407 is communicated with the second oil groove 406. A second branch channel 408 is provided on the outer wall of the movable mold body 403, and the second branch channel 408 is communicated with the hydraulic channel 407. A fourth piston 409 is slidably connected in the second branch channel 408, and a moving block 410 is fixed to the outer side of the fourth piston 409. Hydraulic oil is stored in the second branch channel 408. Before demoulding, the third piston 405 moves to the right, the fourth piston 409 moves, and the moving block 410 moves accordingly and shrinks into the second branch channel 408, and finally the plastic pallet can be successfully removed.

[0026] The use method and advantages of the present invention: The preparation process of the plastic pallet with built-in fiber ribs, the working process is as follows: like Figures 1 to 5 As shown: first, the fiber-implanted reinforcement body 301 is clamped on the inner side of the static mold body 201 and the sleeve 302 and the locking block 303 are aligned one by one. After the electromagnet 211 is energized, the electromagnet 211 automatically absorbs the iron block 304, and the locking block 303 is clamped into the second branch channel 408 to lock the fiber-implanted reinforcement body 301. Then, the moving plate 402 and the movable mold body 403 are moved to the left as a whole, and the movable mold body 403 and the static mold body 201 are closed together. The injection valve 202 is opened to inject material between the movable mold body 403 and the static mold body 201. The fiber-implanted reinforcement and its installation mechanism 3 are embedded Embedded in the raw material, the moving block 410 is a mold for making holes on the plastic pallet. After the raw material is formed, the first piston 205 moves to the right, and the second piston 209 and the push rod 210 move to the right, so as to push the locking block 303 completely into the sleeve 302. After the electromagnet 211 is powered off, the push rod 210 is withdrawn to the first branch channel 208, and then the moving plate 402 and the movable mold body 403 move to the right as a whole and reset, then the third piston 405 moves to the right, the fourth piston 409 slides, and the moving block 410 moves accordingly and shrinks into the second branch channel 408, and finally the plastic pallet can be removed.

[0027] In summary, the preparation process of the plastic pallet with built-in fiber ribs achieves the purpose of reducing dead weight, improving strength and rapid demoulding, and meets people's usage needs.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

[0029] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A process for preparing a plastic pallet with built-in fiber ribs, characterized in that: The following steps are involved: S1: Adding fiber-planted ribs: placing fiber-planted ribs into the manufacturing device and fixing them; S2, closing the mold: closing the movable mold on the manufacturing device with the movable mold; S3, injecting plastic pallet: injecting raw materials into the space between the moving mold and the static mold, and wait for the plastic pallet to solidify and form; S4, demoulding: release the limit of the fiber reinforcement frame, then separate the dynamic mold and the static mold on the manufacturing device, and finally remove the plastic tray.

2. The process for preparing a plastic pallet with built-in fiber ribs according to claim 1, characterized in that: The manufacturing device involved in the steps S1-S4 is characterized in that it includes a bracket (1), and a static mold mechanism (2) is fixed on the inner wall of one side of the bracket (1), and the fiber implanting ribs and their mounting mechanism (3) are snap-connected on the inner wall of the static mold mechanism (2), and the fiber implanting ribs and their mounting mechanism (3) are suction-connected to the static mold mechanism (2), and a dynamic mold mechanism (4) is fixed on the other side of the bracket (1), and the dynamic mold mechanism (4) passes through the other side of the bracket (1).

3. The process for preparing a plastic pallet with built-in fiber ribs according to claim 2, characterized in that: The static mold mechanism (2) comprises a static mold body (201), and a material injection valve (202) is fixed on the top of the static mold body (201); a first electric telescopic rod (203) is fixed on an inner wall of one side of the bracket (1), and a first piston (205) is fixed on one end of the first electric telescopic rod (203); a first oil groove (204) is provided in the side wall of the static mold body (201), and the first piston (205) is slidably connected in the first oil groove (204).

4. The process for preparing a plastic pallet with built-in fiber ribs according to claim 3, characterized in that: A main channel (207) is provided in the side wall of the static mold body (201), and the main channel (207) is connected to the first oil groove (204) through the connecting hole (206). A first branch channel (208) is provided on the inner wall of the static mold body (201), and the first branch channel (208) is connected to the main channel (207).

5. The process for preparing a plastic pallet with built-in fiber ribs according to claim 4, characterized in that: A second piston (209) is slidably connected in the first branch channel (208), a push rod (210) is fixed on the inner side of the second piston (209), and an electromagnet (211) is fixed on the inner end of the push rod (210).

6. The process for preparing a plastic pallet with built-in fiber ribs according to claim 5, characterized in that: The fiber-implanted reinforcement and its installation mechanism (3) comprise a fiber-implanted reinforcement body (301), wherein a sleeve (302) is fixed to the outside of the fiber-implanted reinforcement body (301), a locking block (303) is slidably connected inside the sleeve (302), and an iron block (304) is fixed to the outer end of the locking block (303), and the iron block (304) is suction-connected to the electromagnet (211).

7. The process for preparing a plastic pallet with built-in fiber ribs according to claim 2, characterized in that: The movable mold mechanism (4) comprises a second electric telescopic rod (401), and the second electric telescopic rod (401) is fixed to the other side of the bracket (1), the second electric telescopic rod (401) passes through the other side of the bracket (1) and is connected to the movable plate (402), and a movable mold body (403) is fixed to one side of the movable plate (402).

8. The process for preparing a plastic pallet with built-in fiber ribs according to claim 7, characterized in that: A third electric telescopic rod (404) is fixed on the movable plate (402), and the third electric telescopic rod (404) passes through the movable plate (402) and one side of the movable mold body (403) and is connected to a third piston (405). A second oil groove (406) is provided in the movable mold body (403), and the third piston (405) is slidably connected in the second oil groove (406).

9. The process for preparing a plastic pallet with built-in fiber ribs according to claim 7, characterized in that: A hydraulic channel (407) is provided in the movable mold body (403), and the hydraulic channel (407) is connected to the second oil groove (406); a second branch channel (408) is provided on the outer wall of the movable mold body (403), and the second branch channel (408) is connected to the hydraulic channel (407); a fourth piston (409) is slidably connected in the second branch channel (408), and a moving block (410) is fixed to the outer side of the fourth piston (409).

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