A plastic processing mold convenient for demoulding

Abstract

The utility model relates to the technical field of plastic processing molds, and specifically to a plastic processing mold that is convenient for demoulding. The utility model includes a workbench, the upper end of the workbench is fixedly connected to a support rod, the upper end of the support rod is fixedly connected to a mounting plate, the lower end of the mounting plate is installed with a cylinder, the output end of the cylinder is fixedly connected to a mold pressing plate, the upper end of the mold pressing plate is fixedly connected to a feed pipe, the upper end of the workbench is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected to a mold box, the inner wall of the mounting groove is provided with a demoulding component and a sealing component, the demoulding component includes a cylinder and an oil drum fixedly connected to the bottom of the inner wall of the mounting groove, and solves the problem that when a product is demoulded from the mold box, an ejector pin is used in the prior art to eject the product from the mold box for demoulding, and some products are easily adhered to the inner wall of the mold box, making it difficult to eject the product with an ejector pin.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing molds, in particular to a plastic processing mold which is convenient for demoulding. Background Art

[0002] Plastic processing molds are tools that are used in the plastic processing industry to match plastic molding machines and give plastic products complete configurations and precise dimensions. Plastic processing molds consist of a workbench, mounting grooves, mold boxes, ejectors, support rods, mounting plates, cylinders, mold pressing plates and feed pipes. When using plastic processing molds, start the cylinder under the mounting plate on the support rods on the workbench to press the mold pressing plate into the mold box in the mounting groove, and then the heated and melted plastic fluid flows into the gap between the mold box and the mold pressing plate through the feed pipe. After the product is cooled and formed, the cylinder is started again to separate the mold pressing plate from the mold box, and finally the product is ejected by the ejector.

[0003] The inventors found in their daily work that when a plastic processing mold is in use, when the product is demoulded from the mold box, the prior art uses an ejector pin to eject the product from the mold box for demoulding, but some products are easily adhered to the inner wall of the mold box, making it difficult to eject the product with the ejector pin. Utility Model Content

[0004] The utility model aims to solve the problem that, in actual use, when a product is demoulded from a mold box, an ejector pin is used in the prior art to eject the product from the mold box for demoulding, and some products are easily adhered to the inner wall of the mold box, making it difficult to eject the product with the ejector pin, and a plastic processing mold with convenient demoulding is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic processing mold for convenient demoulding, comprising a workbench, the upper end of the workbench is fixedly connected to a support rod, the upper end of the support rod is fixedly connected to a mounting plate, the lower end of the mounting plate is installed with a cylinder, the output end of the cylinder is fixedly connected to a mold pressing plate, the upper end of the mold pressing plate is fixedly connected to a feed pipe, the upper end of the workbench is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected to a mold box, the inner wall of the mounting groove is provided with a demoulding component and a sealing component, and the demoulding component includes The invention comprises a cylinder and an oil drum fixedly connected to the bottom of the inner wall of the mounting groove, a grooved movable rod being slidably connected to the inner wall of the cylinder, a spring being fixedly connected between the grooved movable rod and the cylinder, a circular hole being opened at the bottom of the inner wall of the mold box, a sliding hole being opened on the arc surface of the cylinder, a grooved pressure rod being slidably connected to the inner wall of the sliding hole, the grooved pressure rod and the grooved movable rod being fixed, a circular tube being fixedly connected to the lower end of the grooved pressure rod, the circular tube being slidably inserted in the oil drum, a piston being arranged on the inner wall of the oil drum, the piston being fixed to the circular tube, and a nozzle being arranged on the arc surface of the grooved movable rod.

[0006] The effect achieved by the above components is: by setting the demoulding component, when the product in the mold box needs to be demoulded, the mold pressing plate is pressed into the mold box, so that the extrusion grooved moving rod slides on the inner wall of the cylinder, so that the spring is compressed, and the grooved pressure rod moves downward in the sliding hole, thereby driving the round tube to move downward, so that the piston moves downward on the inner wall of the oil barrel, and then the demoulding oil in the oil barrel is squeezed to the round tube and the grooved pressure rod and the groove moves, and finally sprayed to the inner wall of the mold box by the nozzle, so that when the product is demoulded, the mold pressing plate moves up, the spring resets, and the grooved moving rod moves up to eject the product, thereby achieving convenient demoulding of the product that is easy to stick to the inner wall of the mold box with the assistance of demoulding oil.

[0007] Preferably, the nozzle is rotatably connected to the grooved movable rod, the inner wall of the grooved movable rod is fixedly connected to a mounting bracket, one side of the mounting bracket is rotatably connected to a rotating shaft, the rotating shaft and the nozzle are fixed, and the arc surface of the rotating shaft is fixedly connected to a turbine.

[0008] The effect achieved by the above components is: when the demoulding oil flows to the turbine, the turbine rotates, thereby rotating the shaft on the mounting frame, and then driving the nozzle to rotate, so that the spraying range of the demoulding oil in the nozzle is increased under the action of centrifugal force.

[0009] Preferably, an oil tank is fixedly connected to one side of the workbench, an oil pipe is fixedly connected between the oil tank and the oil barrel, the oil pipe runs through the workbench, and a one-way valve is installed on the arc surface of the oil pipe.

[0010] The effect achieved by the above components is: when the demoulding oil in the oil barrel needs to be supplemented, when the spring is reset, the grooved pressure rod moves upward, so that the round tube drives the piston to move upward, thereby sucking the demoulding oil in the oil tank connected to the oil pipe into the oil barrel, and the one-way valve ensures that the demoulding oil in the oil barrel cannot flow into the oil tank, so that the demoulding oil in the oil tank can flow into the oil barrel.

[0011] Preferably, a second one-way valve is installed on the arc surface of the circular tube.

[0012] The effect achieved by the above components is: by setting the one-way valve 2, the demoulding oil in the oil barrel can flow to the grooved movable rod, while the fluid in the grooved movable rod cannot flow to the oil barrel.

[0013] Preferably, the sealing assembly comprises a first mounting ring groove formed on the arc surface of the grooved movable rod, a sealing gasket is provided on the inner wall of the first mounting ring groove, and a second mounting ring groove is formed on the inner wall of the circular hole.

[0014] The effect achieved by the above components is: when it is necessary to seal between the grooved movable rod and the mold box, the sealing gasket in the mounting ring groove one is inserted into the mounting ring groove two, thereby sealing between the grooved movable rod and the mold box to prevent the plastic fluid from flowing into the nozzle.

[0015] Preferably, an airbag is installed on the inner wall of the mounting ring groove 1, and the airbag and the sealing gasket are fixed.

[0016] The effect achieved by the above components is: the airbag is inflated through the blowing mechanism, so that the sealing cushion is propped up.

[0017] Preferably, an operating groove is provided at the upper end of the grooved movable rod, a plunger is provided on the inner wall of the operating groove, an air pipe is fixedly connected between the operating groove and the airbag, and the air pipe passes through the grooved movable rod.

[0018] The effect achieved by the above components is that when the mold pressing plate is pressed down, the plunger is pressed, thereby blowing gas into the airbag, thereby causing the airbag to swell.

[0019] Preferably, both ends of the sealing gasket are provided with sliding surfaces.

[0020] The effect achieved by the above components is that the auxiliary sealing pad is stuck in the round hole by setting the sliding surface.

[0021] In summary, the beneficial effects of the utility model are:

[0022] The utility model discloses a demoulding assembly is provided. When it is necessary to demould the product in the mold box, the mold pressing plate is pressed into the mold box, so that the extrusion grooved moving rod slides on the inner wall of the cylinder, so that the spring is compressed, so that the grooved pressing rod moves downward in the sliding hole, thereby driving the round tube to move downward, so that the piston moves downward on the inner wall of the oil barrel, and then the demoulding oil in the oil barrel is squeezed to the round tube, the grooved pressing rod and the grooved movement, and finally sprayed to the inner wall of the mold box by the nozzle. When the product is demoulded, the mold pressing plate moves upward, the spring is reset, and the grooved moving rod moves upward to eject the product, thereby achieving convenient demoulding of the product that is easy to adhere to the inner wall of the mold box with the assistance of demoulding oil, and solves the problem that when the product is demoulded from the mold box, the ejector pin is used in the prior art to eject the product from the mold box for demoulding, and some products are easy to adhere to the inner wall of the mold box, so that it is difficult to eject the product with the ejector pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the cross section of the demoulding component of the utility model;

[0025] Figure 3 For this utility model Figure 2 A is an enlarged schematic diagram of the three-dimensional structure;

[0026] Figure 4 For this utility model Figure 3Schematic diagram of the enlarged three-dimensional structure of B.

[0027] Legend: 1. Workbench; 2. Demolding assembly; 3. Sealing assembly; 4. Support rod; 5. Mounting plate; 6. Cylinder; 7. Mold pressing plate; 8. Feed pipe; 9. Mounting groove; 10. Mold box; 21. Cylinder; 22. Moving rod with groove; 23. Round hole; 24. Spring; 25. Sliding hole; 26. Pressure rod with groove; 27. Round tube; 28. Oil drum; 29. ​​Piston; 210. Nozzle; 211. Mounting frame; 212. Rotating shaft; 213. Oil tank; 214. Oil pipe; 215. One-way valve 1; 216. One-way valve 2; 217. Turbine; 31. Mounting ring groove 1; 32. Sealing gasket; 33. Mounting ring groove 2; 34. Air bag; 35. Operating groove; 36. Air pipe; 37. Plunger; 38. Sliding surface. DETAILED DESCRIPTION

[0028] Reference Figure 1 , Figure 2 and Figure 3 and Figure 4 As shown, the utility model provides a technical solution: a plastic processing mold that is convenient for demolding includes a workbench 1, the upper end of the workbench 1 is fixedly connected to a support rod 4, the upper end of the support rod 4 is fixedly connected to a mounting plate 5, the lower end of the mounting plate 5 is installed with a cylinder 6, the output end of the cylinder 6 is fixedly connected to a mold pressing plate 7, the upper end of the mold pressing plate 7 is fixedly connected to a feed pipe 8, the upper end of the workbench 1 is provided with a mounting groove 9, the inner wall of the mounting groove 9 is fixedly connected to a mold box 10, and the inner wall of the mounting groove 9 is provided with a demolding component 2 and a sealing component 3.

[0029] The specific configuration and function of the demoulding assembly 2 and the sealing assembly 3 will be described in detail below.

[0030] Reference Figure 2 and Figure 3 as well as Figure 4As shown, in this embodiment: the demoulding component 2 includes a cylinder 21 and an oil drum 28 fixedly connected to the bottom of the inner wall of the mounting groove 9, the inner wall of the cylinder 21 is slidably connected with a grooved moving rod 22, and a spring 24 is fixedly connected between the grooved moving rod 22 and the cylinder 21, a circular hole 23 is opened at the bottom of the inner wall of the mold box 10, and a sliding hole 25 is opened on the arc surface of the cylinder 21, and a grooved pressure rod 26 is slidably connected to the inner wall of the sliding hole 25, and the grooved pressure rod 26 is fixed to the grooved moving rod 22, and the lower end of the grooved pressure rod 26 is fixedly connected to a circular tube 27, and the circular tube 27 is slidably inserted in the oil drum 28, and a piston 29 is provided on the inner wall of the oil drum 28, and the piston 29 is fixed to the circular tube 27, and the arc surface of the grooved moving rod 22 is provided with a nozzle 21 0, by setting the demoulding assembly 2, when it is necessary to demould the product in the mold box 10, when the mold pressing plate 7 is pressed into the mold box 10, the extrusion grooved moving rod 22 slides on the inner wall of the cylinder 21, so that the spring 24 is compressed, and the grooved pressing rod 26 moves downward in the sliding hole 25, thereby driving the circular tube 27 to move downward, so that the piston 29 moves downward on the inner wall of the oil barrel 28, and then the demoulding oil in the oil barrel 28 is squeezed to the circular tube 27 and the grooved pressing rod 26 and the groove moves, and finally sprayed by the nozzle 210 to the inner wall of the mold box 10, so that when the product is demoulded, the mold pressing plate 7 moves upward, the spring 24 is reset, and the grooved moving rod 22 moves upward to eject the product, thereby achieving the purpose of demoulding the product that is easy to stick with the aid of the demoulding oil. The product is conveniently demoulded on the inner wall of the mold box 10, the nozzle 210 is rotatably connected to the grooved moving rod 22, the inner wall of the grooved moving rod 22 is fixedly connected to a mounting frame 211, one side of the mounting frame 211 is rotatably connected to a rotating shaft 212, the rotating shaft 212 and the nozzle 210 are fixed, and the arc surface of the rotating shaft 212 is fixedly connected to a turbine 217. When the demoulding oil flows to the turbine 217, the turbine 217 rotates, thereby rotating the rotating shaft 212 on the mounting frame 211, thereby driving the nozzle 210 to rotate, so that the demoulding oil in the nozzle 210 is sprayed in a larger range under the action of centrifugal force, and an oil tank 213 is fixedly connected to one side of the workbench 1, and an oil pipe 214 is fixedly connected between the oil tank 213 and the oil barrel 28. 214 runs through the workbench 1, and a one-way valve 215 is installed on the arc surface of the oil pipe 214. When the demoulding oil in the oil barrel 28 needs to be supplemented, the spring 24 is reset, so that the grooved pressure rod 26 moves up, and the circular pipe 27 drives the piston 29 to move up, thereby sucking the demoulding oil in the oil tank 213 connected to the oil pipe 214 into the oil barrel 28. The one-way valve 215 ensures that the demoulding oil in the oil barrel 28 cannot flow to the oil tank 213, so that the demoulding oil in the oil tank 213 can flow to the oil barrel 28. A one-way valve 216 is installed on the arc surface of the circular pipe 27. By setting the one-way valve 216, the demoulding oil in the oil barrel 28 can flow to the grooved moving rod 22, while the fluid in the grooved moving rod 22 cannot flow to the oil barrel 28.

[0031] Reference Figure 3 and Figure 4As shown, in this embodiment: the sealing component 3 includes a mounting ring groove 1 31 provided on the arc surface of the grooved moving rod 22, a sealing gasket 32 ​​is provided on the inner wall of the mounting ring groove 1 31, and a mounting ring groove 2 33 is provided on the inner wall of the circular hole 23. When it is necessary to seal the grooved moving rod 22 and the mold box 10, the sealing gasket 32 ​​in the mounting ring groove 1 31 is inserted into the mounting ring groove 2 33, thereby sealing the grooved moving rod 22 and the mold box 10 to prevent the plastic fluid from flowing into the nozzle 210. An airbag 34 is installed on the inner wall of the mounting ring groove 1 31, and the airbag 34 and the sealing gasket 32 is fixed, and the airbag 34 is inflated through the blowing mechanism, so that the sealing pad 32 is supported. An operating groove 35 is provided at the upper end of the grooved moving rod 22, and a plunger 37 is provided on the inner wall of the operating groove 35. An air pipe 36 is fixedly connected between the operating groove 35 and the airbag 34, and the air pipe 36 passes through the grooved moving rod 22. When the mold pressing plate 7 is pressed down, the plunger 37 is pressed, so that the gas is blown into the airbag 34, so that the airbag 34 is inflated. Sliding surfaces 38 are provided at both ends of the sealing pad 32. By setting the sliding surface 38, the auxiliary sealing pad 32 is stuck in the round hole 23.

[0032] Working principle:

[0033] When using the plastic processing mold, start the cylinder 6 under the mounting plate 5 on the support rod 4 on the workbench 1, so that the mold pressing plate 7 is pressed into the mold box 10 in the mounting groove 9, and then the heated and melted plastic fluid flows into the gap between the mold box 10 and the mold pressing plate 7 through the feeding pipe 8. After the product is cooled and formed, the cylinder 6 is started again to separate the mold pressing plate 7 from the mold box 10, and finally the product is ejected by the ejector pin. When it is necessary to demold the product in the mold box 10, when the mold pressing plate 7 is pressed into the mold box 10, the extrusion grooved moving rod 22 slides on the inner wall of the cylinder 21, so that the spring 24 is compressed, and the grooved pressing rod 26 moves downward in the sliding hole 25, thereby driving the round tube 27 to move downward, so that the active The plug 29 moves down on the inner wall of the oil barrel 28, so that the demoulding oil in the oil barrel 28 is squeezed to the round tube 27 and the grooved pressure rod 26 and the grooved movement, and finally sprayed from the nozzle 210 to the inner wall of the mold box 10. When the product is demoulded, the mold pressing plate 7 moves up, and the spring 24 is reset, so that the grooved moving rod 22 moves up to eject the product, thereby achieving the purpose of convenient demoulding of the easily bonded product on the inner wall of the mold box 10 with the assistance of the demoulding oil. When the demoulding oil flows to the turbine 217, the turbine 217 rotates, thereby rotating the shaft 212 on the mounting frame 211, thereby driving the nozzle 210 to rotate, so that the demoulding oil in the nozzle 210 is sprayed with a larger spray range under the action of centrifugal force, and the demoulding oil in the oil barrel 28 needs to be replenished. When the demoulding oil in the oil barrel 28 needs to be supplemented, the spring 24 is reset, so that the grooved pressure rod 26 moves upward, so that the round tube 27 drives the piston 29 to move upward, thereby sucking the demoulding oil in the oil tank 213 connected to the oil pipe 214 into the oil barrel 28, and the one-way valve 215 ensures that the demoulding oil in the oil barrel 28 cannot flow into the oil tank 213, so that the demoulding oil in the oil tank 213 can flow into the oil barrel 28. When the demoulding oil in the oil barrel 28 needs to be supplemented, the spring 24 is reset, so that the grooved pressure rod 26 moves upward, so that the round tube 27 drives the piston 29 to move upward, thereby sucking the demoulding oil in the oil tank 213 connected to the oil pipe 214 into the oil barrel 28, and the one-way valve 215 ensures that the demoulding oil in the oil barrel 28 cannot flow into the oil tank 213, so that the demoulding oil in the oil tank 213 can flow into the oil barrel 28. In order to flow to the oil barrel 28, by setting the one-way valve 216, the demoulding oil in the oil barrel 28 can flow to the grooved moving rod 22, while the fluid in the grooved moving rod 22 cannot flow to the oil barrel 28. When it is necessary to seal the grooved moving rod 22 and the mold box 10, when the mold pressing plate 7 is pressed down, the plunger 37 is pressed, so that the gas is blown into the air bag 34 through the air pipe 36 in the operating groove 35, so that the air bag 34 swells, so that the sealing gasket 32 ​​is propped up, and the sealing gasket 32 ​​in the mounting ring groove 1 31 is inserted into the mounting ring groove 2 33, thereby sealing the grooved moving rod 22 and the mold box 10 and preventing the plastic fluid from flowing into the nozzle 210. By setting the sliding surface 38, the auxiliary sealing gasket 32 ​​is stuck in the round hole 23.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A plastic processing mold that is easy to demould, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is fixedly connected to a support rod (4), the upper end of the support rod (4) is fixedly connected to a mounting plate (5), the lower end of the mounting plate (5) is mounted with a cylinder (6), the output end of the cylinder (6) is fixedly connected to a mold pressing plate (7), the upper end of the mold pressing plate (7) is fixedly connected to a feed pipe (8), the upper end of the workbench (1) is provided with a mounting groove (9), the inner wall of the mounting groove (9) is fixedly connected to a mold box (10), the inner wall of the mounting groove (9) is provided with a demoulding component (2) and a sealing component (3), the demoulding component (2) comprises a cylinder (21) and an oil drum (28) fixedly connected to the bottom of the inner wall of the mounting groove (9), the inner wall of the cylinder (21) is slidably connected to a mold box (10), A grooved movable rod (22), a spring (24) fixedly connected between the grooved movable rod (22) and the cylinder (21), a circular hole (23) opened at the bottom of the inner wall of the mold box (10), a sliding hole (25) opened on the arc surface of the cylinder (21), a grooved pressure rod (26) slidably connected to the inner wall of the sliding hole (25), the grooved pressure rod (26) and the grooved movable rod (22) are fixed, a circular tube (27) is fixedly connected to the lower end of the grooved pressure rod (26), the circular tube (27) is slidably inserted in an oil barrel (28), a piston (29) is arranged on the inner wall of the oil barrel (28), the piston (29) and the circular tube (27) are fixed, and a nozzle (210) is arranged on the arc surface of the grooved movable rod (22).

2. A plastic processing mold with convenient demoulding according to claim 1, characterized in that: The spray head (210) is rotatably connected to the grooved movable rod (22); the inner wall of the grooved movable rod (22) is fixedly connected to a mounting frame (211); one side of the mounting frame (211) is rotatably connected to a rotating shaft (212); the rotating shaft (212) is fixed to the spray head (210); and the arc surface of the rotating shaft (212) is fixedly connected to a turbine (217).

3. A plastic processing mold with convenient demoulding according to claim 2, characterized in that: An oil tank (213) is fixedly connected to one side of the workbench (1); an oil pipe (214) is fixedly connected between the oil tank (213) and the oil barrel (28); the oil pipe (214) runs through the workbench (1); and a one-way valve (215) is installed on the arc surface of the oil pipe (214).

4. A plastic processing mold with convenient demoulding according to claim 3, characterized in that: A second one-way valve (216) is installed on the arc surface of the circular tube (27).

5. A plastic processing mold with convenient demoulding according to claim 4, characterized in that: The sealing assembly (3) comprises a first mounting ring groove (31) formed on the arc surface of the grooved movable rod (22), a sealing gasket (32) being provided on the inner wall of the first mounting ring groove (31), and a second mounting ring groove (33) being provided on the inner wall of the circular hole (23).

6. A plastic processing mold with convenient demoulding according to claim 5, characterized in that: An air bag (34) is installed on the inner wall of the mounting ring groove 1 (31), and the air bag (34) and the sealing gasket (32) are fixed.

7. A plastic processing mold with convenient demoulding according to claim 6, characterized in that: An operating groove (35) is provided at the upper end of the grooved movable rod (22), a plunger (37) is provided on the inner wall of the operating groove (35), an air pipe (36) is fixedly connected between the operating groove (35) and the air bag (34), and the air pipe (36) passes through the grooved movable rod (22).

8. The plastic processing mold with convenient demoulding according to claim 7, characterized in that: Sliding surfaces (38) are formed at both ends of the sealing gasket (32).

Images