Double-layer mould pressing device for mould pressing tray

Abstract

The utility model relates to the technical field of double-layer mould pressing devices, in particular to a double-layer mould pressing device of a mould pressing tray, which sequentially comprises an upper mould mounting plate, an upper mould, a middle mould, a lower mould and a lower mould mounting plate from top to bottom, the upper mould is mounted on the upper mould mounting plate, the lower mould is mounted on the lower mould mounting plate, the middle mould is provided with a mould pressing groove and a mould pressing protrusion, and the mould pressing protrusion corresponds to the lower mould. A guide rod assembly is connected among the upper die, the middle die and the lower die, a movable ejector block is arranged in the die pressing groove of the middle die and the lower die, inserting grooves corresponding to the two ends of the ejector block are formed in the side edges of the middle die and the lower die, suspension arms are arranged on the two sides of the upper die, and the inner sides of the suspension arms are in sliding connection with the edges of the middle die and the lower die. According to the mold, two products can be molded at the same time, rapid demolding can be carried out through external parts, the middle mold and the lower mold can slide outwards, and the products can be taken out or loaded conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of molding devices, in particular to a double-layer molding device for a molded tray. Background Art

[0002] The full name of the molded tray is a plant fiber molded flat industrial tray. The raw materials used for this tray are planer shavings, plant straws, etc. It is an integral structure, and the panel and nine support feet are molded in one go. The upper surface of the tray board is flat and smooth, which can meet the transportation of various goods, and the lower surface is provided with reinforcing ribs. The vertical and horizontal forces on the board surface are balanced, and the distribution of the nine feet can meet the four-way insertion of the forklift, belonging to a flat four-way entry single-sided tray.

[0003] The existing tray hot presses generally can only mold one tray at a time. After demolding, the raw materials need to be loaded and then molded again. Although there are also molding devices in the existing hot presses that can mold two trays simultaneously, their material taking and loading are not convenient, and the safety is not high enough.

[0004] Therefore, it is necessary to design a molding device that is more convenient to use and has high safety. Content of the Utility Model

[0005] In order to solve the above problems, the double-layer molding device for a molded tray provided by the utility model is provided with upper and lower two-layer molding structures, which can mold two products simultaneously, and is provided with a structure with a molding groove that can slide outwards to facilitate taking out the products or filling materials.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A double-layer molding device for a molded tray includes, from top to bottom, an upper mold mounting plate, an upper mold, a middle mold, a lower mold, and a lower mold mounting plate. The upper mold is mounted on the upper mold mounting plate, the lower mold is mounted on the lower mold mounting plate. The middle mold is provided with a molding groove and a molding protrusion, the lower mold is provided with a molding groove. The molding groove of the middle mold corresponds to the molding protrusion of the upper mold, the molding protrusion of the middle mold corresponds to the molding groove of the lower mold. A guide rod assembly is connected between the upper mold, the middle mold, and the lower mold. A movable ejector block is provided in the molding groove of the middle mold and the lower mold. Slots corresponding to both ends of the ejector block are opened on the sides of the middle mold and the lower mold. Suspension arms are provided on both sides of the upper mold, and the inner sides of the suspension arms are slidably connected to the edges of the middle mold and the lower mold. Fixed sleeves are provided on both sides of the edges of the middle mold and the lower mold.

[0008] Optionally, in an embodiment of the utility model, the suspension arm includes a three-layer structure, which are, from top to bottom, a main structure, a first sliding structure, and a second sliding structure. A first guide rod is provided between the main structure and the first sliding structure, and a second guide rod is provided between the first sliding structure and the second sliding structure.

[0009] Optionally, in an embodiment of the present utility model, sliding components are provided on both sides of the first sliding structure and the second sliding structure.

[0010] Optionally, in an embodiment of the present utility model, the top block is horizontally in an inverted trapezoidal structure, and a positioning hole is provided at the bottom of the top block. Correspondingly, positioning protrusions matching the positioning hole are provided in the middle mold and the lower mold.

[0011] Optionally, in an embodiment of the present utility model, the sliding component includes a lead screw and a lead screw motor. The lead screw is slidably connected to the two side edges of the middle mold and the lower mold. The lead screw motor is fixedly installed at the rear of the first sliding structure and the second sliding structure, and the output end of the lead screw motor is connected to the lead screw.

[0012] Optionally, in an embodiment of the present utility model, the sliding component includes a sliding rod and a telescopic cylinder. The sliding rod is installed in the first sliding structure and the second sliding structure. The sliding rod is slidably connected to the two side edges of the middle mold and the lower mold. The telescopic cylinder is located behind the middle mold and the lower mold, and the telescopic end of the telescopic cylinder is fixedly connected to the rear part of the middle mold and the lower mold.

[0013] Optionally, in an embodiment of the present utility model, push blocks are provided outside both ends of the top block, and the push blocks are connected with a demolding drive for jacking up the top block.

[0014] Optionally, in an embodiment of the present utility model, the height of the first sliding structure is less than the height of the middle mold, and the height of the second sliding structure is less than the height of the lower mold.

[0015] Advantages of the present utility model

[0016] A double-layer molding device for a molded tray of the present utility model is provided with a middle mold and a lower mold, and has a two-layer molding structure. The middle mold is both an upper mold and a lower mold. The device can mold two products simultaneously. Moreover, the telescopic guide rods between the upper mold, the middle mold and the lower mold can make the middle mold and the lower mold become movable components and can slide outwards. After the middle mold or the lower mold slides out, it is convenient to take out the products from the molding device or load materials into the molding device for the next molding, with higher production efficiency, convenient loading and convenient product taking. Description of the drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0018] Figure 1 It is a front structural schematic diagram of the molding device in Embodiment 1 of the present utility model;

[0019] Figure 2This is a schematic diagram of the structure of the molding device of Example 1 of the utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the lower mold of Embodiment 1 of the utility model;

[0021] Explanation of the accompanying drawings: upper mold 1, middle mold 2, lower mold 3, top block 301, push block 302, demolding drive 303, positioning protrusion 304, upper mold mounting plate 4, lower mold mounting plate 5, molding protrusion 6, molding groove 7, first guide rod 8, second guide rod 9, main structure 10, first sliding mechanism 11, second sliding structure 12, guide rail 13, slider 14, screw rod 15, screw motor 1501, fixed sleeve 16, telescopic guide rod 17. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments. Example 1

[0023] In order to improve the production efficiency of pallet molding, a double-layer molding device for molded pallets is designed. The specific scheme is as follows:

[0024] like Figures 1-3 As shown, a double-layer molding device for a molding pallet includes, from top to bottom, an upper mold mounting plate 4, an upper mold 1, a middle mold 2, a lower mold 3 and a lower mold mounting plate 5, the upper mold 1 is mounted on the upper mold mounting plate 4, the lower mold 3 is mounted on the lower mold mounting plate 5, the middle mold 2 is provided with a molding groove 7 and a molding protrusion 6, the molding protrusion 6 corresponds to the lower mold 3, the molding groove 7 corresponds to the upper mold 1, a guide rod assembly is connected between the upper mold 1, the middle mold 2 and the lower mold 3, a movable top block 301 is provided in the molding groove 7 of the middle mold 2 and the lower mold 3, slots corresponding to the two ends of the top block 301 are opened on the sides of the middle mold 2 and the lower mold 3, hanging arms are provided on both sides of the upper mold 1, the inner side of the hanging arm is slidably connected to the edges of the middle mold 2 and the lower mold 3, and the hanging arm is provided with a fixed sleeve 16.

[0025] Among them, the molded groove 7 is a molded groove 7, and the molded protrusion 6 is a molded protrusion 6; fixed sleeves 16 are built into the edges of both sides of the upper mold 1, and the fixed sleeves 16 are arranged correspondingly to the fixed sleeves 16 on the middle mold 2 from top to bottom.

[0026] The boom includes a three-layer structure, which includes a main structure 10, a first sliding structure and a second sliding structure 12 from top to bottom. A first guide rod 8 is provided between the main structure 10 and the first sliding structure, and a second guide rod 9 is provided between the first sliding structure and the second sliding structure 12.

[0027] Specifically, the main structure 10 is fixedly connected to both sides of the upper mold 1. The first sliding structure can slide up and down through the first guide rod 8, and the second sliding structure 12 can slide up and down through the second guide rod 9. Limiting parts are provided at both ends of the first guide rod 8 and the second guide rod 9, enabling the main structure 10 and the first sliding structure to slide on the first guide rod 8, and the first sliding mechanism 11 and the second sliding structure 12 to slide on the second guide rod 9.

[0028] In this embodiment, the length ratio of the first sliding structure to the second sliding structure 12 is slightly longer than the front-back length of the middle mold 2 and the lower mold 3. In other solutions, the length of the first sliding mechanism 11 and the second sliding structure 12 is twice that of Embodiment 1, which is used to ensure stability when the middle mold 2 and the lower mold 3 slide outwards and avoid imbalance problems caused by weight issues.

[0029] Sliding components are provided on both sides of the first sliding structure and the second sliding structure 12.

[0030] Specifically, detachable cover plates are provided at both ends of the first sliding structure and the second sliding structure 12. Installation spaces are provided inside the cover plates for installing the lead screw 15.

[0031] The front end of the fixed sleeve 16 is of a flared structure, which is convenient for the telescopic guide rod 17 to be inserted.

[0032] When the middle mold 2 and the lower mold 3 are in the initial position, insertion holes are provided on the first sliding structure and the second sliding structure 12. The insertion holes are arranged corresponding to the fixed sleeve 16 for the telescopic guide rod 17 to be inserted.

[0033] The top block 301 is horizontally in an inverted trapezoidal structure. A positioning hole is provided at the bottom of the top block 301. Correspondingly, positioning protrusions 304 matching the positioning hole are provided inside the middle mold 2 and the lower mold 3.

[0034] Specifically, when the top block 301 is in the low position, the top of the top block 301 is flush with the surface of the mold groove of the middle mold 2 and the lower mold 3. When the push block 302 is pushed inwards, the top block 301 is pushed upwards to achieve the demoulding effect.

[0035] The sliding component includes a lead screw 15 and a lead screw motor 1501. The lead screw 15 is slidably connected to the two side edges of the middle mold 2 and the lower mold 3. The lead screw motor 1501 is fixedly installed at the rear of the first sliding structure and the second sliding structure 12, and the output end of the lead screw motor 1501 is connected to the lead screw 15. The reciprocating sliding of the middle mold 2 or the lower mold 3 is controlled by the forward and reverse rotation of the lead screw motor 1501.

[0036] Specifically, a guide rail 13 is provided inside the chute. Correspondingly, the two side edges of the middle mold 2 and the lower mold 3 are movably connected to the lead screws 15. One end of the lead screw 15 is connected to the lead screw motor 1501. By the forward and reverse rotation of the lead screw motor 1501, the middle mold 2 and the lower mold 3 slide smoothly back and forth.

[0037] Both sides of the upper mold 1 and the lower mold 3 are provided with telescopic guide rods 17, and the telescopic guide rods 17 are matched with the fixed sleeves 16.

[0038] Telescopic guide rods 17 are respectively installed on the upper mold mounting plate 4 and the lower mold mounting plate 5. A telescopic drive is provided at the rear of the telescopic guide rod 17. The telescopic action of the telescopic drive causes the telescopic guide rod 17 to expand and contract. The telescopic guide rod 17 is inserted into the fixed sleeve 16. When the mold is closed, the upper mold 1, the middle mold 2 and the lower mold 3 can use the telescopic guide rod 17 as a guide rod. And after the telescopic guide rod 17 retracts, the middle mold 2 and the lower mold 3 can be slid outwards to facilitate taking out the product or loading materials.

[0039] External sides of both ends of the top block 301 are provided with push blocks 302. The push blocks 302 are connected to a demolding drive 303. In this embodiment, the demolding drive 303 adopts a telescopic cylinder structure. Through the telescopic action, the top block 301 moves upwards, thereby demolding the molded product.

[0040] The height of the first sliding structure is less than the height of the middle mold 2, and the height of the second sliding structure 12 is less than the height of the lower mold 3.

[0041] Specifically, when the molding device performs molding, the space left by the first sliding structure and the second sliding structure 12 is used for the normal progress of molding, avoiding interference with molding and affecting the molding quality of the product.

[0042] Working principle:

[0043] After the middle mold 2 and the lower mold 3 are loaded with materials and slide back to the original position, the telescopic guide rod 17 extends and is inserted into the sleeve. Then the upper mold 1 presses downwards, the middle mold 2 presses down accordingly, the middle mold 2 returns to abut against the lower mold 3 in advance. After the upper mold 1 abuts against the middle mold 2, the mold is closed and pressed tightly.

[0044] The double-layer molding device of this solution is provided with a middle mold 2 and a lower mold 3. The middle mold 2 and the lower mold 3 are respectively provided with a molding groove 7, and two products can be molded simultaneously. And the telescopic guide rod 17 between the upper mold 1, the middle mold 2 and the lower mold 3 can be disconnected by telescoping, making the middle mold 2 and the lower mold 3 into movable parts, which can be slid outwards. After the middle mold 2 or the lower mold 3 slides out, it is convenient to take out the product from the molding device or load materials into the molding device for the next molding. Compared with the traditional molding device, the molding device of this solution has higher production efficiency, and the loading part can be slid outwards, which is convenient for loading and taking out the product. Embodiment 2

[0045] In this embodiment, the structure of the double-layer molding device is basically the same as that of Embodiment 1, except that the sliding assembly includes a sliding rod and a telescopic cylinder. The sliding rod is installed in the first sliding structure and the second sliding structure 12, and the sliding rod is slidably connected to the two side edges of the middle mold 2 and the lower mold 3. The telescopic cylinder is located behind the middle mold 2 and the lower mold 3, and the telescopic end of the telescopic cylinder is fixedly connected to the rear part of the middle mold 2 and the lower mold 3.

[0046] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A double-layer compression molding device for a compression molding tray, characterized in that, From top to bottom, it successively includes an upper die mounting plate, an upper die, a middle die, a lower die and a lower die mounting plate. The upper die is mounted on the upper die mounting plate, and the lower die is mounted on the lower die mounting plate. The middle die is provided with a molding groove and a molding protrusion, and the lower die is provided with a molding groove. The molding groove of the middle die corresponds to the molding protrusion of the upper die, and the molding protrusion of the middle die corresponds to the molding groove of the lower die. A guide rod assembly is connected between the upper die, the middle die and the lower die. A movable ejector block is provided in the molding groove of the middle die and the lower die. Slots corresponding to both ends of the ejector block are formed on the sides of the middle die and the lower die. Suspension arms are provided on both sides of the upper die, and the inner sides of the suspension arms are slidably connected to the edges of the middle die and the lower die. Fixed sleeves are provided at both side edges of the middle die and the lower die.

2. The double-layer compression molding device for a compression molding tray according to claim 1, wherein: The suspension arm includes a three-layer structure, which successively includes a main structure, a first sliding structure and a second sliding structure from top to bottom. A first guide rod is provided between the main structure and the first sliding structure, and a second guide rod is provided between the first sliding structure and the second sliding structure.

3. A double compression device for a molded tray according to claim 2, characterized in that: Sliding components are provided on both sides of the first sliding structure and the second sliding structure.

4. A double-layer compression molding device for a compression molding tray according to claim 1, characterized in that: The ejector block is horizontally in an inverted trapezoidal structure, and a positioning hole is formed at the bottom of the ejector block. Correspondingly, positioning protrusions matching the positioning hole are provided in the middle die and the lower die.

5. A double molding device for a molded tray according to claim 3, characterized in that: The sliding component includes a lead screw and a lead screw motor. The lead screw is slidably connected to the side edges of the middle die and the lower die. The lead screw motor is fixedly installed at the rear of the first sliding structure and the second sliding structure, and the output end of the lead screw motor is connected to the lead screw.

6. A double compression device for a molded tray according to claim 3, wherein: The sliding component includes a slide rod and a telescopic cylinder. The slide rod is installed in the first sliding structure and the second sliding structure. The slide rod is slidably connected to the side edges of the middle die and the lower die. The telescopic cylinder is located behind the middle die and the lower die, and the telescopic end of the telescopic cylinder is fixedly connected to the rear of the middle die and the lower die.

7. A double compression device for a molded tray according to claim 1, characterized in that: Push blocks are provided outside both ends of the ejector block, and the push blocks are connected with a demolding drive for jacking up the ejector block.

8. The double compression device for a compression tray according to claim 2, wherein: The height of the first sliding structure is less than the height of the middle die, and the height of the second sliding structure is less than the height of the lower die.

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