Injection mold with ejection mechanism

Abstract

The utility model discloses an injection mold with an ejection mechanism, and relates to the technical field of injection molding. An injection mold with an ejection mechanism comprises a supporting seat and an ejection plate, an ejection device is arranged on the supporting seat and comprises a lower mold, an ejection frame and two pulling plates, a sliding plate groove is formed in the upper surface of the supporting seat, and the lower mold is fixedly connected in the sliding plate groove; a pulling plate is pulled in the ejection device to move reversely to drive a limiting fixing block to move reversely and drive a second reset spring to contract at the same time, and then the limiting fixing block moves reversely to enable the outer wall of the other end of the limiting fixing block to be out of contact with the outer wall of a sliding plate. Then, the sliding plate drives the lower die to move upwards while moving upwards through the acting force generated by the first reset spring, so that the forming die is separated from the inner walls of the two sides of the lower die, the two sides of the forming die are higher than the lower die, and the situation that a worker needs to forcibly take out a product from the die through a crowbar or other tools is avoided; therefore, the abrasion of the equipment is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field, especially a kind of injection mold with ejection mechanism. BACKGROUND

[0002] Injection mold is a mold for plastic injection molding process, it allows plastic material to be injected into the cavity of mold under high temperature and pressure, and solidifies into the shape required after cooling, injection molding is a widely used manufacturing method, for producing various plastic products, from simple daily necessities to complex industrial parts.

[0003] Among them, injection mold includes cavity, core, gate and cooling system, etc., wherein pouring system includes main runner, branch runner, gate etc., for guiding molten plastic to flow into cavity from injection molding machine nozzle, cooling system is composed of cooling water channel, for taking away heat in mold, so that plastic solidifies quickly.

[0004] The existing injection mold when in use, by plastic material from gate into the inside of mold cavity, then by cooling water in cooling system in the water pipe in mold flows, heat exchange is carried out between water pipe wall and mold surface, so that mold is quickly formed, but when taking out mold, staff need to use crowbar or other tools to forcibly take out product from mold, so it is easy to cause product damage or deformation, and then accelerate the wear of mold, shorten the service life of mold. UTILITY MODEL CONTENTS

[0005] The utility model aims at least to solve one of the technical problems existing in prior art, provide a kind of injection mold with ejection mechanism, can solve the problem that when taking out mold, staff need to use crowbar or other tools to forcibly take out product from mold, so it is easy to cause product damage or deformation, and then accelerate the wear of mold, shorten the service life of mold.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of injection mold with ejection mechanism, including support seat and top plate, the support seat is provided with ejection device on;

[0007] Ejection device includes lower mould, ejection frame and two pull plates, the upper surface of support seat is provided with sliding plate slot, lower mould is fixedly connected in the inside of sliding plate slot, sliding plate slot is slidably connected with sliding plate in the inside, the two side inner walls of lower mould are all provided with two limit slots, the two side outer walls of lower mould are all provided with sliding slot;

[0008] The outer wall of the two protruding blocks on the both sides of the ejection frame is slidably connected with the inside of the corresponding limiting groove, the inside of the groove on the both sides of the sliding plate is fixedly connected with a first fixing rod, the outer wall of the two first fixing rods is sleeved with a first reset spring, the two outer walls of the supporting seat are fixedly connected with two second fixing rods, the two outer walls of the supporting seat are provided with two limiting fixed block grooves, the inside of the two limiting fixed block grooves is slidably connected with a limiting fixed block, and the outer wall of the four second fixing rods is sleeved with a second reset spring.

[0009] Preferably, the sliding plate is hollow, the ejection frame is in the shape of L, the outer wall of the two protruding blocks on the inner wall of the sliding plate is slidably connected with the inside of the corresponding sliding groove, and the outer wall of the two protruding blocks on the inner wall of the sliding plate is fixedly connected with the corresponding outer wall of the ejection frame.

[0010] The outer wall of the two protruding blocks on the both sides of the ejection frame is slidably connected with the inside of the corresponding limiting groove, the inside of the groove on the both sides of the sliding plate is fixedly connected with a first fixing rod, the outer wall of the two first fixing rods is sleeved with a first reset spring, the two outer walls of the supporting seat are fixedly connected with two second fixing rods, the two outer walls of the supporting seat are provided with two limiting fixed block grooves, the inside of the two limiting fixed block grooves is slidably connected with a limiting fixed block, and the outer wall of the four second fixing rods is sleeved with a second reset spring.

[0011] Preferably, the two ends of the two pulling plates are slidably connected with the outer wall of the corresponding second fixing rod, and the end, close to the sliding plate, of the two limiting fixed blocks slidably extends to the inside of the sliding plate groove and is in contact with the upper surface of the sliding plate.

[0012] The two ends of the four second reset springs are fixedly connected with the outer wall of one end of the corresponding second fixing rod and the outer wall of one side of the pulling plate, the end, away from the sliding plate, of the four limiting fixed blocks is fixedly connected with the outer wall of one side of the corresponding pulling plate, and the outer wall of the both sides of the ejection frame is in contact with the inner wall of the lower mold.

[0013] Preferably, the upper surface of the supporting seat is fixedly connected with four supporting columns.

[0014] The lower surface of the top plate is fixedly connected with the end, away from the supporting seat, of the four supporting columns.

[0015] Preferably, the inside of the supporting seat is provided with a cooling pipe, the upper surface of the top plate is provided with a gas cylinder, and the supporting seat is provided with a core.

[0016] The output end of the gas cylinder slidably extends to the outside of the top plate and is fixedly connected with the upper surface of the core.

[0017] Preferably, the end, close to the core, of the two sliding rods, slidably connected with the upper surface of the top plate, slidably extends to the outside of the top plate and is fixedly connected with the upper surface of the core.

[0018] Compared with the prior art, the utility model has the advantages of:

[0019] 1. The injection mold with the ejection mechanism, through the opposite movement of the pull plate in the ejection device to drive the opposite movement of the limiting fixed block and drive the contraction of the second return spring, then the opposite movement of the limiting fixed block makes the other end outer wall lose contact with the outer wall of the sliding plate, then the sliding plate moves up through the force generated by the first return spring and drives the lower mold to move up, so that the forming mold is separated from the two side inner walls of the lower mold and is higher than the lower mold on both sides, so that the forming mold is easily taken out, thereby avoiding the need for workers to use a crowbar or other tools to forcibly take out the product from the mold, thereby effectively reducing the wear of the equipment and prolonging the service life of the mold. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model is further illustrated below in combination with the drawings and embodiments:

[0021] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0022] Figure 2 It is a structure schematic view of the core outside of the utility model;

[0023] Figure 3 It is a structure schematic view of the support seat inside of the utility model;

[0024] Figure 4 It is a structure schematic view of the cooling pipe outside of the utility model.

[0025] The drawings show that 1 is a support seat, 2 is a lower mold, 3 is an ejection frame, 4 is a limiting groove, 5 is a first return spring, 6 is a first fixed rod, 7 is a gas cylinder, 8 is a sliding plate groove, 9 is a top plate, 10 is a support column, 11 is a second fixed rod, 12 is a pull plate, 13 is a second return spring, 14 is a sliding groove, 15 is a core, 16 is a limiting fixed block groove, 17 is a sliding plate, 18 is a limiting fixed block, and 19 is a cooling pipe. DETAILED DESCRIPTION

[0026] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the description of the utility model, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as a limitation on the utility model.

[0028] In the description of the utility model, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number. If it is described to the first, the second is only used for distinguishing the technical features for the purpose, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0029] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model combined with the specific content of the technical scheme.

[0030] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a injection mold with ejection mechanism, including support seat 1 and top plate 9;

[0031] Support seat 1 is provided with ejector device;

[0032] The ejection device comprises a lower die 2, an ejection frame 3 and two pull plates 12, the upper surface of the support base 1 is provided with a sliding plate groove 8, the lower die 2 is fixedly connected inside the sliding plate groove 8, the sliding plate groove 8 is slidably connected with a sliding plate 17, the sliding plate 17 is hollow, the two side inner walls of the lower die 2 are both provided with two limiting grooves 4, the ejection frame 3 is in the shape of "L", the two side outer walls of the lower die 2 are both provided with sliding grooves 14, the two side two protrusions of the ejection frame 3 are slidably connected with the inside of the corresponding limiting grooves 4, the two protrusions of the sliding plate 17 are slidably connected with the inside of the corresponding sliding grooves 14, the two side outer walls of the ejection frame 3 are fixedly connected with one side outer walls of the two protrusions of the sliding plate 17, the two side recesses of the sliding plate groove 8 are both fixedly connected with first fixing rods 6, the two protrusions of the sliding plate 17 are slidably connected with the outer walls of the corresponding first fixing rods 6, the outer walls of the two first fixing rods 6 are both sleeved with first return springs 5, the two ends of the two first return springs 5 are both fixedly connected with the outer walls of the corresponding first fixing rods 6 and the upper surface of the sliding plate 17, the two outer walls of the support base 1 are both fixedly connected with two second fixing rods 11, the two ends of the two pull plates 12 are slidably connected with the outer walls of the corresponding second fixing rods 11, the two side outer walls of the support base 1 are both provided with two limiting fixing block grooves 16, the two limiting fixing block grooves 16 are both slidably connected with limiting fixing blocks 18, one end of the two limiting fixing blocks 18 close to the sliding plate 17 is slidably extended into the inside of the sliding plate groove 8 and is in contact with the upper surface of the sliding plate 17, the outer walls of the four second fixing rods 11 are all sleeved with second return springs 13, the two ends of the four second return springs 13 are both fixedly connected with the outer walls of the corresponding one ends of the second fixing rods 11 and the outer walls of one side of the pull plates 12, the one ends of the four limiting fixing blocks 18 away from the sliding plate 17 are all fixedly connected with the outer walls of one side of the corresponding pull plates 12, and the two side outer walls of the ejection frame 3 are in contact with the inner walls of the lower die 2.

[0033] The upper surface of the support base 1 is fixedly connected with four support columns 10, the lower surface of the top plate 9 is fixedly connected with one end of the four support columns 10 away from the support base 1, the inside of the support base 1 is installed with a cooling pipe 19, the upper surface of the top plate 9 is installed with a gas cylinder 7, the support base 1 is provided with a core 15, the output end of the gas cylinder 7 is slidably extended to the outside of the top plate 9 and is fixedly connected with the upper surface of the core 15, and the two sliding rods slidably connected with the upper surface of the top plate 9 are both slidably extended to the outside of the top plate 9 and are both fixedly connected with the upper surface of the core 15.

[0034] Further, in use of the device, by connecting external power supply to start, first the output end of the cylinder 7 moves down to drive the core 15 to move down, so that the core 15 enters the inside of the lower mold 2 and cooperates with the ejection frame 3 and the lower mold 2, then the external device pours the injection material into the inside of the lower mold 2 through the gate on the surface of the lower mold 2, then the two ends of the cooling pipe 19 are connected with the external cooling device, then the cooling device sends cooling water into the inside of the cooling pipe 19, then the cooling water flows into the inside of the support base 1 through the cooling pipe 19 to accelerate the molding of the material in the inside of the lower mold 2, then after the material is molded, the cylinder 7 moves up to drive the core 15 to be pulled out from the inside of the lower mold 2, then the pull plate 12 is pulled to move in the opposite direction to drive the limiting block 18 to move in the opposite direction while driving the second reset spring 13 to contract, then the limiting block 18 moves in the opposite direction to lose contact between the other end of the outer wall and the outer wall of the sliding plate 17, then the sliding plate 17 moves up while driving the lower mold 2 to move up through the action force generated by the first reset spring 5, so that the molded mold is separated from the two inner walls of the lower mold 2 to be higher than the lower mold 2 on both sides, so that the molded mold is easily taken out.

[0035] By pulling the pull plate 12 to move in the opposite direction to drive the limiting block 18 to move in the opposite direction while driving the second reset spring 13 to contract in the ejecting device, then the limiting block 18 moves in the opposite direction to lose contact between the other end of the outer wall and the outer wall of the sliding plate 17, then the sliding plate 17 moves up while driving the lower mold 2 to move up through the action force generated by the first reset spring 5, so that the molded mold is separated from the two inner walls of the lower mold 2 to be higher than the lower mold 2 on both sides, so that the molded mold is easily taken out, thereby avoiding the need for workers to use a crowbar or other tools to forcibly take out the product from the mold, thereby effectively reducing the wear of the equipment, and prolonging the service life of the mold, by connecting the two ends of the cooling pipe 19 with the external cooling device, then the cooling device sends cooling water into the inside of the cooling pipe 19, then the cooling water flows into the inside of the support base 1 through the cooling pipe 19 to accelerate the molding of the material in the inside of the lower mold 2, so that the material is quickly molded, effectively improving the production efficiency of the equipment, and improving the practicality and effectiveness of the equipment.

[0036] Working principle: first, the output end of the cylinder 7 moves down to drive the core 15 to move down, so that the core 15 enters the inside of the lower mold 2 and cooperates with the ejection frame 3 and the lower mold 2, then the external equipment pours the injection material into the inside of the lower mold 2 through the gate on the surface of the lower mold 2, then the two ends of the cooling pipe 19 are connected with the external cooling equipment, then the cooling equipment sends the cooling water into the inside of the cooling pipe 19, then the cooling water flows into the inside of the support base 1 through the cooling pipe 19 to accelerate the material in the inside of the lower mold 2 to be formed, then the material is formed, the cylinder 7 moves up to drive the core 15 to be pulled out from the inside of the lower mold 2, then the pull plate 12 is pulled to move reversely to drive the limiting fixed block 18 to move reversely and drive the second reset spring 13 to contract, then the limiting fixed block 18 moves reversely to make the other end of the outer wall lose contact with the outer wall of the sliding plate 17, then the sliding plate 17 moves up through the action force of the first reset spring 5 to drive the lower mold 2 to move up, so that the formed mold is separated from the two side inner walls of the lower mold 2 and is higher than the lower mold 2 on two sides, so that the formed mold is convenient to take out.

[0037] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An injection mold with ejection mechanism, comprising a support base (1) and an ejector plate (9), characterized in that: The ejection device is arranged on the support base (1); The ejection device comprises a lower die (2), an ejection frame (3) and two pull plates (12), the upper surface of the support base (1) is provided with a sliding plate groove (8), the lower die (2) is fixedly connected in the sliding plate groove (8), the sliding plate groove (8) is slidably connected with a sliding plate (17), the inner walls of the lower die (2) are both provided with two limiting grooves (4), and the outer walls of the lower die (2) are both provided with sliding grooves (14); The outer walls of the two first fixing rods (6) are both sleeved with first return springs (5), the two outer walls of the support base (1) are both fixedly connected with two second fixing rods (11), the outer walls of the support base (1) are both provided with two limiting fixing block grooves (16), the limiting fixing block grooves (16) are both slidably connected with limiting fixing blocks (18), and the outer walls of the four second fixing rods (11) are all sleeved with second return springs (13).

2. The injection mold with ejection mechanism according to claim 1, characterized in that: The sliding plate (17) is hollow, the ejection frame (3) is in an "L" shape, the outer walls of the two lugs on the inner wall of the sliding plate (17) are slidably connected with the inner walls of the corresponding sliding grooves (14), and the outer walls of the ejection frame (3) are fixedly connected with the outer walls of the two lugs on one side of the inner wall of the sliding plate (17); The outer walls of the two first fixing rods (6) are both sleeved with first return springs (5), the two outer walls of the support base (1) are both fixedly connected with two second fixing rods (11), the outer walls of the support base (1) are both provided with two limiting fixing block grooves (16), the limiting fixing block grooves (16) are both slidably connected with limiting fixing blocks (18), and the outer walls of the four second fixing rods (11) are all sleeved with second return springs (13).

3. The injection mold with ejection mechanism according to claim 1, wherein: The outer walls of the two first fixing rods (6) are both sleeved with first return springs (5), the two outer walls of the support base (1) are both fixedly connected with two second fixing rods (11), the outer walls of the support base (1) are both provided with two limiting fixing block grooves (16), the limiting fixing block grooves (16) are both slidably connected with limiting fixing blocks (18), and the outer walls of the four second fixing rods (11) are all sleeved with second return springs (13). The outer walls of the two first fixing rods (6) are both sleeved with first return springs (5), the two outer walls of the support base (1) are both fixedly connected with two second fixing rods (11), the outer walls of the support base (1) are both provided with two limiting fixing block grooves (16), the limiting fixing block grooves (16) are both slidably connected with limiting fixing blocks (18), and the outer walls of the four second fixing rods (11) are all sleeved with second return springs (13).

4. The injection mold with ejection mechanism according to claim 1, wherein: The upper surface of the support base (1) is fixedly connected with four supporting columns (10); The lower surfaces of the top plates (9) are fixedly connected with the outer ends, away from the support base (1), of the four supporting columns (10).

5. The injection mold with ejection mechanism according to claim 1, wherein: The support base (1) is internally provided with a cooling pipe (19), the top plate (9) is provided with a gas cylinder (7), and the support base (1) is provided with a core (15); The output end of the gas cylinder (7) slidably extends to the outside of the top plate (9) and is fixedly connected with the upper surface of the core (15).

6. The injection mold with ejection mechanism of claim 1, wherein: The outer ends, close to the core (15), of the two sliding rods slidably connected with the upper surface of the top plate (9) both slidably extend to the outside of the top plate (9) and are fixedly connected with the upper surface of the core (15).

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