Automatic demolding device for environment-friendly molded tray

Abstract

The utility model relates to the technical field of demolding devices, in particular to an automatic demolding device for an environment-friendly molded tray, which comprises a base, a demolding ejector rod, a connecting frame and a demolding drive, the demolding ejector rod is mounted on the connecting frame, the bottom of the connecting frame is connected with the demolding drive, the demolding drive is mounted on the base, and a reinforcing rib structure is arranged on the connecting frame. The upper end of the demolding ejector rod is located in the lower mold, an ejector block structure is arranged at the upper end of the demolding ejector rod and used for increasing the contact area and preventing the tray from being damaged by ejection, a guide rod is arranged between the base and the lower mold, a containing groove is formed in the base and used for containing the connecting frame, and an auxiliary demolding ejector block structure connected with the connecting frame is arranged at the top of the lower mold. According to the utility model, a plurality of positions of the tray can be stressed, the stress is more uniform, the tray is prevented from being damaged by jacking, and the auxiliary demoulding jacking block structure is arranged at the corner position of the top of the lower mould, so that the top of a product can be lifted, and the product is prevented from being damaged by jacking. And demolding of the product is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding devices, in particular to an automatic demoulding device for an environmentally friendly molded tray. Background Art

[0002] During the production and processing of molded pallets, the pallets are easily stuck in the lower mold, and the staff needs to manually demold them, which is time-consuming and labor-intensive. It is impossible to ensure that the stress points are uniform, which in turn affects the demolding efficiency and cannot meet the usage requirements. When demolding, the existing demolding device generally directly pushes out the ejector rod. When the pallet is relatively tight, it is easy to damage the pallet.

[0003] Therefore, it is necessary to design an automatic demoulding device that can perform better demoulding process. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an environmentally friendly molded pallet automatic demoulding device, which can evenly apply upward force to the bottom of the pallet, and is provided with an auxiliary demoulding structure on the top of the pallet, so that the pallet can be demoulded smoothly to avoid damage.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An environmentally friendly molded tray automatic demoulding device comprises a base, a plurality of demoulding ejector rods, a connecting frame and a demoulding drive, wherein the demoulding ejector rod is installed on the connecting frame, the bottom of the connecting frame is connected to the demoulding drive, the demoulding drive is installed on the base, a reinforcing rib structure is provided on the connecting frame, the upper end of the demoulding ejector rod is located in the lower mold and a top block structure is provided on the upper end to increase the contact area and avoid damaging the tray, a guide rod is provided between the base and the lower mold, a accommodating groove is provided on the base to accommodate the connecting frame, an auxiliary demoulding top block structure connected to the connecting frame is provided on the top of the lower mold, and a liftable pressing block is provided at a position of the upper mold corresponding to the auxiliary demoulding top block structure to cooperate with the auxiliary demoulding top block structure.

[0007] Optionally, in one embodiment of the utility model, the auxiliary demolding top block structure is an L-shaped structure, the top surface of the auxiliary demolding top block structure is flush with the top of the lower mold, and accordingly, an L-shaped avoidance groove is opened at the corner position of the lower mold, and the auxiliary demolding top block structure is connected to a connecting rod, which is fixedly connected to the connecting frame through the connecting rod.

[0008] Optionally, in an embodiment of the present invention, the pressing block is L-shaped, and the outer edge of the pressing block is further provided with a fitting portion extending downward, and the pressing block is connected to a pressing drive to control the lifting and lowering of the pressing block.

[0009] Optionally, in an embodiment of the utility model, the reinforcing rib structure is radial, and the reinforcing rib structure is provided with four reinforcing ribs respectively connected to the corners of the connecting frame, and the center of the reinforcing rib structure is fixedly connected to the center of the connecting frame.

[0010] Optionally, in one embodiment of the utility model, the lower end of the demoulding ejector rod is provided with an external thread, and accordingly, a screw hole is provided at the installation position of the demoulding ejector rod, and the lower end of the demoulding ejector rod is fixed with a bolt, and the thread direction of the bolt is opposite to that of the screw hole.

[0011] Optionally, in one embodiment of the utility model, the demoulding ejector rods are distributed on the connecting frame in an array.

[0012] Beneficial effects of the utility model

[0013] The utility model discloses an environmentally friendly automatic demoulding device for molded pallets. The bottom of the pallet is provided with a plurality of demoulding ejector rods which are evenly distributed at various locations on the bottom of the pallet. The tops of the demoulding ejector rods are provided with ejector block structures to increase the contact area and avoid damaging the bottom of the pallet. The top of the pallet is provided with an auxiliary demoulding ejector block structure and a pressure block. During demoulding, the top of the pallet can be kept stable and will not be ejected suddenly. The pallet can be demoulded upwards smoothly to avoid damage caused by demoulding of the pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the front structure of the molding device of Example 1 of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the molding device of Example 1 of the utility model;

[0017] Figure 3 This is a schematic diagram of the use state of the pressing block and the auxiliary demoulding top block structure of Example 1 of the utility model;

[0018] Explanation of the accompanying drawings: base 1, lower mold 2, upper mold 3, molding drive 301, demolding ejector rod 4, ejector block structure 401, auxiliary demolding ejector block 5, connecting rod 501, pressing block 6, pressing drive 601, bonding part 602, connecting frame 7, reinforcing rib structure 701, bolt 702, demolding drive 8, tray A. DETAILED DESCRIPTION

[0019] 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

[0020] In order to ensure smooth demoulding of the pallet and reduce the damage caused by demoulding, an environmentally friendly automatic demoulding device for molded pallets A is designed. The specific plan is as follows:

[0021] like Figure 1-2 As shown, an environmentally friendly molded pallet automatic demoulding device comprises a base 1, a plurality of demoulding ejector rods 4, a connecting frame 7 and a demoulding drive 8, wherein the demoulding ejector rods 4 are mounted on the connecting frame 7, the bottom of the connecting frame 7 is connected to the demoulding drive 8, the demoulding drive 8 is mounted on the base 1, a reinforcing rib structure 701 is provided on the connecting frame 7, the upper end of the demoulding ejector rod 4 is located in the lower mold 2 and a top block structure 401 is provided on the upper end to increase the contact area and avoid damaging the pallet A, a guide rod is provided between the base 1 and the lower mold 2, a receiving groove is provided on the base 1 to accommodate the connecting frame 7, an auxiliary demoulding ejector block 5 structure 401 connected to the connecting frame 7 is provided on the top of the lower mold 2, a liftable pressing block 6 is provided at a position of the upper mold 3 corresponding to the auxiliary demoulding ejector block 5 structure 401 to cooperate with the auxiliary demoulding ejector block 5 structure 401, a molding drive 301 is provided at the top center of the upper mold 3, and the molding drive 301 and the demoulding drive 8 are both conventional hydraulic cylinder telescopic structures.

[0022] The auxiliary demoulding top block 5 structure 401 is an L-shaped structure, and the top surface of the auxiliary demoulding top block 5 structure 401 is flush with the top of the lower mold 2. Correspondingly, an L-shaped avoidance groove is opened at the corner position of the lower mold 2. The auxiliary demoulding top block 5 structure 401 is connected to a connecting rod 501, and is fixedly connected to the connecting frame 7 through the connecting rod 501.

[0023] The pressing block 6 is L-shaped, and a fitting portion 602 extending downward is provided on the outer edge of the pressing block 6. The height of the fitting portion 602 is equivalent to the top edge of the tray A. The pressing block 6 is connected to a pressing drive 601 to control the lifting of the pressing block 6.

[0024] Specifically, the pressing drive 601 adopts a telescopic rod structure, and the pressing drive 601 is fixedly installed on the top of the upper mold 3. The telescopic end of the pressing drive 601 is fixedly connected to the pressing block 6, and the pressing block 6 is respectively located at the four corners of the upper mold 3. In the initial state, the pressing block 6 is in contact with the upper mold 3, and the corners of the upper mold 3 are provided with avoidance structures for avoiding the pressing block 6. During the demolding process, an L-shaped clamping space is formed between the pressing block 6 and the auxiliary demolding top block 5 structure 401, and the corners of the pallet A are located in the clamping space. When the demolding top rod 4 lifts the pallet A upward, the pressing block 6 and the auxiliary demolding top block structure 401 can play the role of clamping the top of the pallet A to keep it rising steadily. At the same time, the pressing drive 601 retracts upward. During the rising process, the top of the pallet A is kept in a stable clamping state.

[0025] The reinforcing rib structure 701 is radially shaped, and is provided with four reinforcing ribs respectively connected to the corners of the connecting frame 7 , and the center of the reinforcing rib structure 701 is fixedly connected to the center of the connecting frame 7 .

[0026] The provision of the reinforcing rib structure 701 makes the connecting frame 7 more stable. When only one power source is provided, the force of the peripheral and central ejection forces of the connecting frame 7 can be kept as consistent as possible. In other schemes, multiple power sources can be provided, and the multiple power sources can be controlled in linkage so that multiple demolding ejector rods 4 can perform demolding actions simultaneously.

[0027] The lower end of the demoulding ejector rod 4 is provided with an external thread. Accordingly, a screw hole is provided at the installation position of the demoulding ejector rod 4. The lower end of the demoulding ejector rod 4 is fixed with a bolt 702. The thread direction of the bolt 702 is opposite to that of the screw hole.

[0028] Specifically, the bolt 702 is arranged in the opposite direction to the screw hole, which can ensure that the demoulding ejector rod 4 can still be firmly installed on the connecting frame 7 after long-term use, and prevent it from loosening and affecting the demoulding use.

[0029] The demoulding ejector rods 4 are distributed on the connecting frame 7 in an array.

[0030] In this embodiment, a plurality of supporting feet are provided at the bottom of the molded pallet A, and the supporting feet are recessed on the lower mold 2. A total of nine demolding push rods 4 are installed on the connecting frame 7, which are arranged in an array. The nine demolding push rods 4 are provided at the supporting feet of the lower mold 2. When the pallet A is demolded, the demolding push rods 4 lift the supporting feet of the pallet A. The connecting frame 7 is in the shape of a field, and the length structure of the demolding push rods 4 is the same. When the demolding process is performed, the nine demolding push rods 4 apply force to the bottom of the pallet A at the same time. The lower mold 2 corresponds to the position of the demolding push rods 4, and through holes are opened one by one for the installation and up and down movement of the demolding push rods 4. The top block structure 401 at the upper end of the demolding push rod 4 is shaped to fit the shape of the bottom of the pallet A, and the top surface of the top block structure 401 is a plane.

[0031] illustrate:

[0032] During molding, the pressing block 6 descends with the upper mold 3. After the molded tray A is formed, when demolding is required, the demolding push rod 4 is lifted upward, and the pressing block 6 and the upper mold 3 rise at the same time. The rising rate of the upper mold 3 is the same as the rising rate of the demolding push rod 4. After the tray A is released from the lower mold 2, the pressing block 6 remains stationary, and the upper mold 3 continues to rise, so that the entire tray A is exposed, which is convenient for taking it out. After the equipment stops working, the tray A can be taken out.

[0033] The automatic demoulding device of the present invention is provided with a plurality of evenly distributed demoulding push rods 4, which can ensure that each position on the bottom of the tray A is evenly stressed to avoid damage; the connecting frame 7 is provided with a reinforcing rib structure 701 to ensure that the center and the periphery of the connecting frame 7 are more balanced; the top of the lower mold 2 is also provided with an auxiliary demoulding push block 5 structure 401 and a pressure block 6 located directly above the auxiliary demoulding push block 5 structure 401, which can cooperate with the demoulding push rods 4 to keep the demoulding tray A smoothly demoulded during demoulding. Example 2

[0034] In this embodiment, the structure of the automatic demoulding device is basically the same as that of Example 1, except that the setting of the pressing block 6 is cancelled, and during the demoulding process, the top of the tray A is only supported and lifted by the auxiliary demoulding top block 5 structure 401. Example 3

[0035] In this embodiment, the structure of the automatic demoulding device is basically the same as that of Example 1, except that it also includes a water-cooling pipe. Water-cooling bent pipes are provided inside the upper mold 3 and the lower mold 2 to accelerate mold cooling and increase the temperature difference between the mold and the product to facilitate demoulding.

[0036] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An environmentally friendly molded tray automatic demoulding device, characterized in that: The demoulding push rod comprises a base, a plurality of demoulding push rods, a connecting frame and a demoulding drive, wherein the demoulding push rod is installed on the connecting frame, the bottom of the connecting frame is connected to the demoulding drive, the demoulding drive is installed on the base, a reinforcing rib structure is provided on the connecting frame, the upper end of the demoulding push rod is located in the lower mold and a top block structure is provided on the upper end to increase the contact area and avoid damaging the tray, a guide rod is provided between the base and the lower mold, a accommodating groove is provided on the base to accommodate the connecting frame, an auxiliary demoulding push block structure connected to the connecting frame is provided on the top of the lower mold, and a liftable pressure block is provided at the position of the upper mold corresponding to the auxiliary demoulding push block structure to cooperate with the auxiliary demoulding push block structure.

2. The automatic demoulding device for an environmentally friendly molded tray according to claim 1, characterized in that: The auxiliary demoulding top block structure is an L-shaped structure, and the top surface of the auxiliary demoulding top block structure is flush with the top of the lower mold. Accordingly, an L-shaped avoidance groove is opened at the corner position of the lower mold. The auxiliary demoulding top block structure is connected to a connecting rod and is fixedly connected to the connecting frame through the connecting rod.

3. The automatic demoulding device for an environmentally friendly molded tray according to claim 1, characterized in that: The pressing block is L-shaped, and an outer edge of the pressing block is also provided with a fitting portion extending downward. The pressing block is connected to a pressing drive to control the lifting of the pressing block.

4. The automatic demoulding device for an environmentally friendly molded tray according to claim 1, characterized in that: The reinforcing rib structure is radial, and is provided with four reinforcing ribs respectively connected to the corners of the connecting frame, and the center of the reinforcing rib structure is fixedly connected to the center of the connecting frame.

5. The automatic demoulding device for environmentally friendly molded trays according to claim 1, characterized in that: The lower end of the demoulding ejector pin is provided with an external thread, and correspondingly, a screw hole is provided at the installation position of the demoulding ejector pin. The lower end of the demoulding ejector pin is fixed with a bolt, and the thread direction of the bolt is opposite to that of the screw hole.

6. The automatic demoulding device for environmentally friendly molded pallets according to claim 1, characterized in that: The demoulding ejector rods are distributed on the connecting frame in an array.

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