Automatic demolding structure of mold

Abstract

The utility model discloses an automatic demolding structure of a mold, and relates to the technical field of molds. The automatic demolding structure comprises a workbench, a lower mold is fixed to the center of the surface of the workbench, a supporting assembly is arranged on the upper surface of the workbench, two movable plates are rotationally arranged on the inner side of the supporting assembly, a connecting rod is rotationally arranged between the two movable plates, and an upper mold is fixed to the lower end of the connecting rod and matched with the lower mold. An ejector plate is movably arranged in an inner cavity of the lower die, two racks are oppositely fixed to the bottom of the ejector plate and movably matched with the workbench, a supporting rod is arranged on the lower side of the workbench, an incomplete gear is arranged on the supporting rod and meshed with the racks, and a transmission assembly is arranged between the supporting rod and the rotating rod. The ejector plate is conveniently driven to move towards the bottom of the inner cavity of the lower mold in the process of adjusting the upper mold to move downwards, stamping is conveniently implemented, and after stamping is finished, the upper mold and the ejector plate are adjusted to synchronously move upwards, and rapid demolding is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, in particular to an automatic mold demoulding structure. Background Art

[0002] Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject sheet metal to deformation force in the die, thereby obtaining product parts with a certain shape, size and performance. The die used for stamping is called a stamping die, or simply a die. A die is a special tool for batch processing materials (metal or non-metal) into the required stamping parts.

[0003] After the stamping die has stamped the material, the stamped parts need to be taken out of the die. After the stamping is completed, the traditional stamping die needs to be manually taken out of the die, which is time-consuming and labor-intensive, and is difficult to take out, affecting the stamping efficiency. During use, some stamping dies with ejection structures use the elasticity of the spring to demold the stamped sheet. After multiple consecutive demoldings, the elasticity of the spring will decrease, and the spring needs to be replaced regularly. The operation is more troublesome, which increases the cost of use and affects the demolding use of the die.

[0004] In view of the above problems, we propose an automatic mold demoulding structure. Utility Model Content

[0005] Technical Solution

[0006] In order to solve the above technical problems, the utility model provides an automatic demolding structure for a mold, comprising a workbench, a lower mold is fixed at the center of the workbench surface, a support assembly is arranged on the upper surface of the workbench, two movable plates are rotatably arranged on the inner side of the support assembly, a connecting rod is rotatably arranged between the two movable plates, an upper mold is fixed at the lower end of the connecting rod and cooperates with the lower mold, a rotating rod is fixed on the movable plate on the rear side, an ejector plate is movably arranged in the inner cavity of the lower mold, two through grooves penetrate the bottom of the inner cavity of the lower mold, the through grooves penetrate the workbench, two racks are relatively fixed at the bottom of the ejector plate, which are movably cooperated with the two through grooves respectively, a support rod is arranged on the lower side of the workbench, an incomplete gear is arranged on the support rod, the incomplete gear is meshed with the rack, and a transmission assembly is arranged between the support rod and the rotating rod.

[0007] The support assembly includes a vertical plate, two of the vertical plates are relatively arranged on both sides of the lower mold, and the bottom of the vertical plate is fixedly connected to the top of the workbench, two horizontal plates are fixed between the two vertical plates, the movable plate on the front side is rotatably connected to the horizontal plate on the front side through a rotating shaft, and the rotating rod is rotatably matched with the horizontal plate on the rear side.

[0008] The surface of the vertical plate is penetrated with a guiding groove, a guiding rod is fixed in the guiding groove, a guiding block is movably sleeved on the guiding rod, and the left and right guiding blocks are respectively fixedly connected to the left and right side surfaces of the upper die.

[0009] A support frame is fixedly connected to the rear surface of the workbench, a motor is installed on the top of the support frame, the output end of the motor is connected to the rear end of the rotating rod, fixing blocks are fixedly connected to the bottoms of the workbench and the support frame, and the support rod is rotatably arranged between the two fixing blocks.

[0010] Two vertical rods are relatively fixedly connected to the bottom of the workbench, a limiting block is slidably sleeved on each vertical rod, and the two limiting blocks are respectively fixedly connected to the two racks.

[0011] The transmission assembly includes pulleys and a transmission belt. The two pulleys are respectively arranged on the rotating rod and the support rod, the transmission belt is arranged between the two pulleys in a transmission manner, an avoidance groove penetrates through the bottom surface of the support frame, and the transmission belt is matched with the avoidance groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The present utility model facilitates driving the rotating rod and the support rod to rotate synchronously through the transmission assembly. Under the action of the rotating rod, the movable plate is driven to rotate around the rotating rod. Combining the rotational cooperation between the connecting rod and the movable plate, it is convenient to drive the up-and-down reciprocating motion of the upper die. Combining the meshing action between the incomplete gear and the rack, it is convenient to drive the up-and-down reciprocating motion of the ejector plate, realizing the synchronous motion of the upper die and the ejector plate, facilitating the implementation of stamping operations. And after stamping, the stamped part is pushed upward by the ejector plate, realizing automatic demoulding, eliminating the need for workers to manually take out the stamped part, saving manpower, improving stamping efficiency, and at the same time solving the drawback that in the use process of some stamping dies with an ejecting structure, the elasticity of the spring is used to demould the stamped sheet, and after continuous demoulding for multiple times, the elasticity of the spring will decrease, requiring regular replacement of the spring, which is rather troublesome to operate and increases the use cost. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the top view of the present utility model;

[0016] Figure 3 is Figure 2 the structural schematic diagram of section A-A in

[0017] Figure 4 is Figure 3 the enlarged structural schematic diagram at B in

[0018] Figure 5 is a schematic structural diagram of the present utility model;

[0019] Figure 6 is Figure 5 a schematic structural diagram from another perspective.

[0020] The reference signs in the drawings are: 1, workbench; 2, lower mold; 3, movable plate; 4, connecting rod; 5, upper mold; 6, rotating rod; 7, ejector plate; 8, rack; 9, support rod; 10, incomplete gear; 11, transmission assembly; 12, vertical plate; 13, horizontal plate; 14, guide rod; 15, guide block; 16, support frame; 17, motor; 18, fixed block; 19, vertical rod; 20, limit block. Specific Embodiment

[0021] This specific embodiment is an automatic mold demoulding structure. As Figures 1-6 shown, the automatic mold demoulding structure includes a workbench 1. A lower mold 2 is fixedly arranged at the center of the surface of the workbench 1. A support assembly is arranged on the upper surface of the workbench 1. Two movable plates 3 are rotatably arranged inside the support assembly. A connecting rod 4 is rotatably arranged between the two movable plates 3. The lower end of the connecting rod 4 is fixedly provided with an upper mold 5, which is matched with the lower mold 2. A rotating rod 6 is fixedly arranged on the rear movable plate 3. An ejector plate 7 is movably arranged inside the lower mold 2. Two through grooves penetrate through the bottom of the inner cavity of the lower mold 2 and penetrate through the workbench 1. Two racks 8 are relatively fixedly arranged at the bottom of the ejector plate 7 and are respectively movably matched with the two through grooves. A support rod 9 is arranged below the workbench 1. An incomplete gear 10 is arranged on the support rod 9. The incomplete gear 10 meshes with the rack 8. A transmission assembly 11 is arranged between the support rod 9 and the rotating rod 6.

[0022] The transmission assembly 11 facilitates driving the rotating rod 6 and the support rod 9 to rotate synchronously. Among them, under the action of the rotating rod 6, the movable plate 3 is driven to rotate around the rotating rod 6. Combining the rotational cooperation between the connecting rod 4 and the movable plate 3, it is convenient to drive the up-and-down reciprocating movement of the upper mold 5. Combining the meshing action between the incomplete gear 10 and the rack 8, it is convenient to drive the up-and-down reciprocating movement of the ejector plate 7, realizing the synchronous movement of the upper mold 5 and the ejector plate 7, facilitating the implementation of stamping operations. And after stamping, the stamping part is ejected upward by the ejector plate 7, realizing rapid demoulding. There is no need for workers to manually take out the stamping part, saving manpower and improving stamping efficiency. At the same time, it solves the problem that in the process of using some stamping molds with an ejecting structure, the elasticity of the spring is used to demould the stamping formed plate. After continuous demoulding for many times, the elasticity of the spring will decrease, and it is necessary to regularly replace the spring, which is more troublesome to operate and increases the use cost.

[0023] The supporting component includes a vertical plate 12. Two vertical plates 12 are oppositely arranged on both sides of the lower die 2, and the bottom of the vertical plate 12 is fixedly connected to the top of the workbench 1. Two cross plates 13 are fixed between the two vertical plates 12. The front movable plate 3 is rotatably connected to the front cross plate 13 through a rotating shaft. The rotating rod 6 is rotatably matched with the rear cross plate 13. The vertical plate 12 and the cross plate 13 ensure the stability of the movable plate 3 during the rotation process.

[0024] A guiding groove penetrates through the surface of the vertical plate 12. A guiding rod 14 is fixed in the guiding groove. A guiding block 15 is movably sleeved on the guiding rod 14. The left and right guiding blocks 15 are respectively fixedly connected to the left and right sides of the upper die 5. Through the sliding fit between the guiding block 15 and the guiding rod 14, it effectively plays a role in limiting and guiding the upper die 5, ensuring the stability of the up and down movement of the upper die 5.

[0025] A support frame 16 is fixedly connected to the rear surface of the workbench 1. A motor 17 is installed on the top of the support frame 16. The output end of the motor 17 is connected to the rear end of the rotating rod 6. Fixed blocks 18 are fixedly connected to the bottoms of both the workbench 1 and the support frame 16. The support rod 9 is rotatably arranged between the two fixed blocks 18.

[0026] Two vertical rods 19 are relatively fixedly connected to the bottom of the workbench 1. A limiting block 20 is slidably sleeved on the vertical rod 19. The two limiting blocks 20 are respectively fixedly connected to the two racks 8. Through the sliding fit between the limiting block 20 and the vertical rod 19, it effectively plays a role in limiting and guiding the rack 8, ensuring the stability of the up and down movement of the rack 8, and further ensuring the stability of the up and down movement of the ejector plate 7.

[0027] The transmission component 11 includes pulleys and a transmission belt. The two pulleys are respectively arranged on the rotating rod 6 and the support rod 9. The transmission belt is arranged between the two pulleys in a transmission manner. An avoidance groove penetrates through the bottom of the surface of the support frame 16. The transmission belt is matched with the avoidance groove.

[0028] Embodiment:

[0029] In the initial state, the upper die 5 is at the highest position away from the lower die 2. At this time, the upper surface of the ejector plate 7 is at the same horizontal plane as the top surface of the lower die 2. When stamping a sheet, first place the sheet to be stamped on the top of the ejector plate 7 and the lower die 2, and start the motor 17;

[0030] The motor 17 drives the rotating rod 6 to rotate. Under the rotational cooperation between the rotating rod 6 and the rotating shaft with the two cross plates 13 on both sides respectively, it drives the movable plate 3 to rotate around the rotating rod 6. Combining the rotational cooperation between the connecting rod 4 and the two movable plates 3, and the sliding fit between the guiding block 15 and the guiding rod 14, it drives the upper die 5 to stably move downward close to the lower die 2;

[0031] During this process, under the action of the transmission assembly 11, the support rod 9 is driven to rotate synchronously. Under the meshing action of the incomplete gear 10 and the rack 8, and the sliding fit between the limit block 20 and the vertical rod 19, the rack 8 on one side is driven to move steadily downward, and then the ejector plate 7 is driven to move steadily downward to the bottom of the inner cavity of the lower mold 2;

[0032] As the upper mold 5 continues to move downward, when the upper mold 5 presses the placed sheet into the inner cavity of the lower mold 2, at this time, the ejector plate 7 moves to the bottom of the inner cavity of the lower mold 2, thus completing the stamping operation of the sheet;

[0033] After the stamping is completed, the motor 17 continues to operate. Under the combined action of the rotating rod 6, the movable plate 3 and the connecting rod 4, the upper mold 5 is driven to move away from the lower mold 2. At the same time, under the mutual cooperation of the transmission assembly 11, the support rod 9 and the incomplete gear 10, the rack 8 on the other side is driven to move upward, and then the ejector plate 7 is driven to move upward, pushing the stamped part in the inner cavity of the lower mold 2 upward, achieving the purpose of automatic demoulding. There is no need for workers to manually take out the stamped part, which saves time and effort, effectively ensures the continuous implementation of the stamping operation, and at the same time does not require the use of a spring, solving the problem that in some stamping molds with an ejecting structure, during the use process, the elasticity of the spring is used to demould the stamped sheet. After continuous demoulding many times, the elasticity of the spring will decrease, and it is necessary to regularly replace the spring, which is more troublesome to operate and increases the use cost, facilitating the implementation of the stamping operation.

[0034] It should be further noted that the installation structure, connection method or setting method of each component in the present utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented. At the same time, the motor 17 in the present utility model is purchased on the market, and those skilled in the art can install and use it according to the requirements.

[0035] All the technical features in this embodiment can be freely combined according to actual needs.

[0036] The above - disclosed preferred embodiments of the present utility model are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present utility model, so that those skilled in the art in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A mold automatic demoulding structure, comprising a workbench (1), characterized in that: A lower mold (2) is fixed at the center of the surface of the workbench (1); a support assembly is arranged on the upper surface of the workbench (1); two movable plates (3) are rotatably arranged inside the support assembly; a connecting rod (4) is rotatably arranged between the two movable plates (3); an upper mold (5) is fixed at the lower end of the connecting rod (4) to cooperate with the lower mold (2); a rotating rod (6) is fixed on the movable plate (3) at the rear side; an ejector plate (7) is movably arranged in the inner cavity of the lower mold (2); two through grooves are penetrated at the bottom of the inner cavity of the lower mold (2); the through grooves penetrate the workbench (1); two racks (8) are relatively fixed at the bottom of the ejector plate (7) and are movably cooperated with the two through grooves respectively; a support rod (9) is arranged on the lower side of the workbench (1); an incomplete gear (10) is arranged on the support rod (9); the incomplete gear (10) is meshed with the rack (8); a transmission assembly (11) is arranged between the support rod (9) and the rotating rod (6).

2. The automatic mold demoulding structure according to claim 1, characterized in that: The support assembly comprises a vertical plate (12), wherein the two vertical plates (12) are arranged oppositely on both sides of the lower mold (2), and the bottom of the vertical plate (12) is fixedly connected to the top of the workbench (1), and two horizontal plates (13) are fixed between the two vertical plates (12), and the front movable plate (3) is rotatably connected to the front horizontal plate (13) through a rotating shaft, and the rotating rod (6) is rotatably matched with the rear horizontal plate (13).

3. The automatic mold demoulding structure according to claim 2, characterized in that: A guide groove is passed through the surface of the vertical plate (12), a guide rod (14) is fixed in the guide groove, a guide block (15) is movably sleeved on the guide rod (14), and the left and right guide blocks (15) are respectively fixedly connected to the left and right side surfaces of the upper mold (5).

4. The automatic mold demoulding structure according to claim 3, characterized in that: A support frame (16) is fixed on the rear surface of the workbench (1), a motor (17) is installed on the top of the support frame (16), the output end of the motor (17) is connected to the rear end of the rotating rod (6), and a fixing block (18) is fixed on the bottom of the workbench (1) and the support frame (16), and the support rod (9) is rotatably arranged between the two fixing blocks (18).

5. The automatic mold demoulding structure according to claim 4, characterized in that: Two vertical rods (19) are relatively fixed at the bottom of the workbench (1), and a limit block (20) is slidably sleeved on the vertical rod (19). The two limit blocks (20) are respectively fixedly connected to the two racks (8).

6. The automatic mold demoulding structure according to claim 5, characterized in that: The transmission assembly (11) comprises a pulley and a transmission belt, the two pulleys are respectively arranged on the rotating rod (6) and the supporting rod (9), the transmission belt is arranged between the two pulleys, and an avoidance groove is penetrated at the bottom of the surface of the supporting frame (16), and the transmission belt cooperates with the avoidance groove.

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