Plastic mould base capable of rapidly dissipating heat

Abstract

The utility model belongs to the technical field of plastic mold frames, and particularly relates to a plastic mold frame capable of rapidly dissipating heat, which comprises a fixed plate I, a fixed mold arranged on one side of the fixed plate I, a movable mold arranged on one side, far away from the fixed plate I, of the fixed mold in a butt joint manner, and a fixed plate II arranged on one side, far away from the fixed mold, of the movable mold, a first top plate and a second top plate are arranged on the side, close to the movable mold, of the second fixing plate in parallel, and mold feet are symmetrically arranged on the upper sides and the lower sides of the first top plate and the second top plate between the second fixing plate and the movable mold. The surface of the injection molding workpiece is blown away, temperature return heat on the surface of the injection molding workpiece is blown away, rapid shrinkage of the surface of the workpiece is promoted, after shrinkage of the injection molding workpiece, the mold core protruding part of the movable mold is clamped, the injection molding workpiece is conveniently separated from the mold core inner concave face of the fixed mold, and the situation that temperature return surface expansion causes loose connection of the mold core of the movable mold and tight connection of the mold core of the fixed mold is avoided; an injection molding workpiece is prevented from being retained in the mold core of the fixed mold, the continuity and stability of injection molding processing are maintained, and subsequent injection molding processing is prevented from being influenced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of plastic mould frame, and specifically relates to a plastic mould frame capable of quickly dissipating heat. BACKGROUND

[0002] The plastic mould frame is a part of an injection mould. The plastic mould frame is a basic structure of the injection mould and mainly serves to support and fix other parts of the mould. It comprises a fixed mould plate and a movable mould plate, which are fixed on the movable and fixed mould mounting plates of an injection machine respectively.

[0003] When injection moulding is carried out, a cooling device is generally needed to accelerate cooling to ensure that the injection workpiece is quickly cooled and formed. The common cooling method is to set a cooling cavity in the movable and fixed moulds, connect an external circulating refrigeration device through a one-side circulating water pipe, and continuously pass cooling water in the movable and fixed moulds, so as to achieve the purpose of quick cooling.

[0004] However, when some injection workpieces are processed, the injection-to-demoulding time is short in order to quickly process and improve the yield, and the demoulding is generally controlled to be carried out just after the workpiece is formed. When demoulding, the injection workpiece will have a certain temperature rise, which causes the surface of the injection workpiece to soften and expand. In addition, when the movable mould just separates from the fixed mould, the external air cannot quickly flow into the workpiece surface to cause the workpiece surface to shrink, which causes the injection workpiece to be not easy to be taken away from the fixed mould by the movable mould, and the problem of mould sticking occurs, which affects the subsequent processing of the injection workpiece. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model aims to provide a plastic mould frame capable of quickly dissipating heat, which solves the problem that when some injection workpieces are processed, the injection-to-demoulding time is short in order to quickly process and improve the yield, and the demoulding is generally controlled to be carried out just after the workpiece is formed. When demoulding, the injection workpiece will have a certain temperature rise, which causes the surface of the injection workpiece to soften and expand. In addition, when the movable mould just separates from the fixed mould, the external air cannot quickly flow into the workpiece surface to cause the workpiece surface to shrink, which causes the injection workpiece to be not easy to be taken away from the fixed mould by the movable mould, and the problem of mould sticking occurs, which affects the subsequent processing of the injection workpiece.

[0006] In order to achieve the above object, the utility model discloses the technical scheme that a kind of plastic mould frame of quick heat dissipation, including fixed plate one, the one side of fixed plate one is provided with fixed mould, the one side of fixed mould away from fixed plate one is butt joint and is provided with movable mould, the one side of movable mould away from fixed mould is provided with fixed plate two, the one side of fixed plate two close to movable mould is provided with top plate one and top plate two side by side, the upper and lower sides of top plate one and top plate two are symmetrically provided with mould foot between fixed plate two and movable mould, the one side of top plate two close to movable mould is uniformly provided with thimble, the thimble penetrates movable mould, the upper side of the upper side of mould foot is open, the inside of the upper side of mould foot is provided with fan, the both sides of the upper side of mould foot are all provided with air inlet, the upper side of movable mould is provided with blowing shell, the blowing shell contacts with fixed plate one, the lower side of blowing shell is open, the output end of fan and blowing shell are communicatively provided with connecting shell, the lower side input of connecting shell and the upper side output of fan are matched and crimped.

[0007] The utility model discloses the beneficial effect is: to the surface of injection molding workpiece is blown, blows away the back temperature heat of injection molding workpiece surface, promotes workpiece surface to contract fast, and injection molding workpiece contracts and will be clamped movable mould's mould kernel convex part, and it is convenient to separate fixed mould's mould kernel inner concave surface, avoids back temperature surface expansion, leads to movable mould's mould kernel connection slack and with fixed mould's mould kernel connection tightens, avoids injection molding workpiece and stays in fixed mould's mould kernel, maintains the continuity and stability of injection molding processing, avoids the influence subsequent injection molding processing.

[0008] In order to be used for the conventional quick cooling forming of injection molding workpiece;

[0009] As the further improvement of the above technical scheme: the one side of fixed mould and movable mould is side by side and is provided with water cooling pipe, and the one side of water cooling pipe away from fixed mould and movable mould is communicatively provided with circulating water cooling device.

[0010] The beneficial effect of the improvement is that the circulating water cooling device circulates and transports cooling water through fixed mould and movable mould through water cooling pipe, for the conventional quick cooling forming of injection molding workpiece.

[0011] In order to be used for assisting fixed mould and movable mould accurate docking;

[0012] As the further improvement of the above technical scheme: the one side of top plate one close to movable mould is provided with reset pin rod in four corners, the reset pin rod penetrates movable mould to the other side, the four corners of movable mould close to fixed mould are provided with guide column, and the guide column is inserted with fixed mould.

[0013] The beneficial effect of the improvement is that reset pin rod is used for assisting top plate one and top plate two to move and reset, and guide column is used for assisting fixed mould and movable mould accurate docking.

[0014] In order to prevent dust and flying lint in external air from entering fan;

[0015] As a further improvement of the above technical solution: the inner side of the air inlet is provided with a filter screen.

[0016] The improvement has the beneficial effect of preventing floating dust and flying lint in the external air from entering the fan.

[0017] In order to disassemble the connecting shell;

[0018] As a further improvement of the above technical solution: the input end and the output end of the connecting shell are bolted and fixedly connected with the die foot and the blowing shell respectively.

[0019] The improvement has the beneficial effect of disassembling the connecting shell and replacing and maintaining the fan inside the die foot.

[0020] In order to increase the sealing connection effect of the input end and the output end of the connecting shell;

[0021] As a further improvement of the above technical solution: the input end and the output end of the connecting shell are provided with sealing rubber strips.

[0022] The improvement has the beneficial effect of increasing the sealing connection effect of the input end and the output end of the connecting shell.

[0023] In order to change the blowing direction of the air flow;

[0024] As a further improvement of the above technical solution: the lower side of the blowing shell is provided with an air guide strip at equal intervals.

[0025] The improvement has the beneficial effect of rotating the air guide strip to change the blowing direction of the air flow.

[0026] In order to continuously open the fan;

[0027] As a further improvement of the above technical solution: both sides of the blowing shell are provided with side air inlets, the inner side of the blowing shell is provided with clamping rail rods above and below the side air inlets, the clamping rail rods are provided with air baffle plates which are slidably clamped between the clamping rail rods, the air baffle plates are provided with a connecting rod, the middle part of the connecting rod is provided with a push rod near one side of the fixed plate, the push rod penetrates the blowing shell to the outside, the outer side of the push rod is provided with a spring, and both ends of the spring are fixedly connected with the blowing shell and the connecting rod.

[0028] The improved beneficial effect is that the push rod pushes the fixed plate one, drives the connecting rod, drives the wind baffle to move, the wind baffle is opened along the rail clamping rod, the side wind opening can be used as the side air outlet of the blow shell after the fixed mold and the movable mold butt joint, when the fixed mold and the movable mold are demoulded, the spring drives the connecting rod to drive the wind baffle to restore and block the side wind opening, so that the airflow is normally sprayed from the lower side of the blow shell, so that when the injection molding demolding is faster, the fan can be continuously opened, and the fan does not need to be repeatedly opened and closed.

[0029] The part not involved in the device is the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 Structure diagram of the utility model Figure One ; Structure diagram of the utility model

[0031] Figure 2 Structure diagram of the utility model Figure Two ; Structure diagram of the utility model

[0032] Figure 3 Connection structure diagram of the utility model in the mold foot

[0033] Figure 4 Inside structure section view of the utility model in the blow shell

[0034] In the drawing: 1, fixed plate one;2, fixed mold;3, movable mold;4, fixed plate two;5, mold foot;6, top plate one;7, top plate two;8, guide column;9, return pin rod;10, thimble;11, fan;12, connecting shell;13, blow shell;14, air inlet;15, air deflector;16, side wind opening;17, rail clamping rod;18, wind baffle;19, connecting rod;20, push rod;21, spring. DETAILED DESCRIPTION

[0035] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be described in detail below in conjunction with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.

[0036] As Figure 1 — Figure 4The utility model discloses a plastic mould frame of quick heat dissipation, including fixed plate no.The connecting rod 19 is provided with a push rod 20 at the side close to the fixed plate one 1, the push rod 20 penetrates the blowing shell 13 to the outside, the outside of the push rod 20 is sleeved with a spring 21, the two ends of the spring 21 are fixedly connected with the blowing shell 13 and the connecting rod 19 respectively, after the push rod 20 presses the fixed plate one 1, the connecting rod 19 is pushed, the wind baffle 18 is driven to move, the wind baffle 18 is opened by sliding along the clamping rail 17, the side air outlet 16 can be used as the side air outlet of the blowing shell 13 after the fixed mold 2 and the movable mold 3 are butted, when the fixed mold 2 and the movable mold 3 are demoulded, the spring 21 pulls the connecting rod 19 to drive the wind baffle 18 to restore and block the side air outlet 16, so that the airflow is normally sprayed from the lower side of the blowing shell 13, so that when the injection molding demolding is faster, the fan 11 can be continuously opened, and the fan 11 does not need to be repeatedly turned on and off.

[0037] The working principle and use process of the utility model are as follows:

[0038] In use, the fixed mold 2 and the movable mold 3 of the device are connected with the injection molding machine through the fixed plate one 1 and the fixed plate two 4 respectively, the connection between the device and the injection molding machine is a conventional connection mode, which will not be described here. In demolding, the fixed plate two 4 is driven by the hydraulic rod, the fixed plate two 4 drives the movable mold 3 to slowly separate from the fixed mold 2, and the inner mold cores of the fixed mold 2 and the movable mold 3 are separated. In this process, the fan 11 is started, the output end of the fan 11 sends air into the blowing shell 13 through the connecting shell 12, and the air flow sprayed from the lower side of the blowing shell 13 quickly passes between the fixed mold 2 and the movable mold 3 to blow the surface of the injection molded workpiece, blow away the back temperature heat on the surface of the injection molded workpiece, promote the rapid shrinkage of the workpiece surface, and clamp the mold core protruding part of the movable mold 3 after the injection molded workpiece shrinks, and facilitate the separation of the mold core inner concave surface of the fixed mold 2, avoid the back temperature surface expansion, cause the mold core connection of the movable mold 3 to be loose and the mold core connection of the fixed mold 2 to be tightened, avoid the injection molded workpiece to be retained in the mold core of the fixed mold 2, maintain the continuity and stability of the injection molding process, avoid affecting the subsequent injection molding process, in addition, in use, the fixed mold 2 and the movable mold 3 are provided with water cooling pipes on one side in parallel communication, the water cooling pipes are provided with a circulating water cooling device on the side away from the fixed mold 2 and the movable mold 3, the circulating water cooling device circulates and delivers cooling water through the fixed mold 2 and the movable mold 3 through the water cooling pipes, and is used for conventional rapid cooling and forming of the injection molded workpiece, in addition, in use, the four corners of the top plate one 6 close to the movable mold 3 are provided with return pins 9, the return pins 9 penetrate through the movable mold 3 to the other side, the four corners of the movable mold 3 close to the fixed mold 2 are provided with guide columns 8, the guide columns 8 are inserted with the fixed mold 2, the return pins 9 are used for assisting the movement and resetting of the top plate one 6 and the top plate two 7, and the guide columns 8 are used for assisting the precise butt joint of the fixed mold 2 and the movable mold 3, in addition, in use, the inner sides of the air inlets 14 are provided with filter screens, which prevent floating dust and flying floss in the external air from entering the fan 11, in addition, in use, the input end and the output end of the connecting shell 12 are bolted and fixedly connected with the mold foot 5 and the blowing shell 13 respectively, which is used for disassembling the connecting shell 12, and is used for replacing and maintaining the fan 11 in the mold foot 5, in addition, in use, the input end and the output end of the connecting shell 12 are provided with sealing rubber strips, which are used for increasing the sealing connection effect of the input end and the output end of the connecting shell 12, in addition, in use, the lower side of the blowing shell 13 is provided with wind guide strips 15 at equal intervals,

[0039] The wind guide strips 15 are used for changing the blowing direction of the air flow, in addition, in use, after the push rod 20 presses the fixed plate one 1, the push rod 20 pushes the connecting rod 19 to drive the air baffle 18 to move, the air baffle 18 slides along the clamping rail 17 to open the side air outlet 16, the side air outlet 16 can be used as the side air outlet of the blowing shell 13 after the butt joint of the fixed mold 2 and the movable mold 3, when the fixed mold 2 and the movable mold 3 are demolded, the spring 21 pulls the connecting rod 19 to drive the air baffle 18 to reset and block the side air outlet 16, so that the air flow is normally sprayed from the lower side of the blowing shell 13, which can continuously start the fan 11 when the injection molding process demolding is fast, without repeatedly turning on and off the fan 11.

[0040] It should be noted that, in this text, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or apparatus that comprises a list of elements not only includes those elements, but also includes other elements not expressly listed or inherent to such process, method, article or apparatus.

[0041] The principles and implementation modes of the present application are described by applying specific examples in this text, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation mode of the present application, and it should be noted that, due to the limited expression of the text, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principle of the present application, and the above technical features can also be combined in a proper way; these improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A plastic mold frame capable of rapid heat dissipation, characterized by: The utility model provides a mould is provided with fixed plate one (1), one side of fixed plate one (1) is provided with fixed mould (2), the side of fixed mould (2) is butt jointed with movable mould (3) away from fixed plate one (1), the side of movable mould (3) is provided with fixed plate two (4) away from fixed mould (2), the side of fixed plate two (4) is provided with top plate one (6) and top plate two (7) side by side near movable mould (3), the upper and lower sides of fixed plate two (4) and movable mould (3) are provided with mould foot (5) symmetry on top plate one (6) and top plate two (7), the side of top plate two (7) is uniformly provided with thimble (10) near movable mould (3), thimble (10) penetrates movable mould (3), the upper side of upper side mould foot (5) is open, the inner side of upper side mould foot (5) is provided with fan (11), the both sides of upper side mould foot (5) are provided with air inlet (14), the upper side of movable mould (3) is provided with blow shell (13), blow shell (13) contacts with fixed plate one (1), the lower side of blow shell (13) is open, the output of fan (11) and blow shell (13) are provided with connecting shell (12) between the communication, the lower side input of connecting shell (12) and the upper side output of fan (11) are matched and crimped.

2. The plastic mold base according to claim 1, wherein: The side of fixed mould (2) and movable mould (3) is provided with water cooling pipe side by side, and the side of water cooling pipe away from fixed mould (2) and movable mould (3) is provided with circulating water cooling device.

3. The plastic mold base of claim 1, wherein: The side of top plate one (6) is provided with return pin rod (9) in four corners near movable mould (3), return pin rod (9) penetrates movable mould (3) to the other side, the side of movable mould (3) is provided with guide pillar (8) in four corners near fixed mould (2), and guide pillar (8) is inserted with fixed mould (2).

4. The plastic mold base of claim 1, wherein: The inner side of air inlet (14) is provided with filter screen.

5. The plastic mold base of claim 1, wherein: The input and output of connecting shell (12) are bolted and fixedly connected with mould foot (5) and blow shell (13) respectively.

6. The plastic mold base of claim 1, wherein: The input and output of connecting shell (12) are provided with sealing rubber strip.

7. The plastic mold base of claim 1, wherein: The lower side of blow shell (13) is provided with wind guide strip (15) rotationally and equidistantly.

8. The plastic mold base of claim 1, wherein: The both sides of blow shell (13) are provided with side air inlet (16), the inner side of blow shell (13) is provided with rail clamping rod (17) on the upper and lower sides of side air inlet (16), the rail clamping rod (17) is provided with wind baffle (18) slidingly and clamped between, the connecting rod (19) is arranged between wind baffle (18), the middle of connecting rod (19) is provided with push rod (20) near the side of fixed plate one (1), push rod (20) penetrates blow shell (13) to the outside, the outside of push rod (20) is provided with spring (21) sleeved, and the both ends of spring (21) are fixedly connected with blow shell (13) and connecting rod (19) respectively.

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