CN220517447U - Injection mold capable of quickly replacing movable insert core block - Google Patents

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold capable of quickly replacing a movable insert core block. According to the quick-change mechanism, the insert rod is arranged at the bottom of the movable insert core block and can be drawn into the insert sleeve of the lower die, the bayonet lock which stretches out and draws back through the spring is arranged in the insert rod, the bayonet lock is transversely inserted into the insert sleeve under the action of the elastic force, then the push block is driven by the motor to move, and the push block can push the bayonet lock out of the insert sleeve under the action of the ejector pin, so that the movable insert core block can be quickly disassembled and replaced, convenience and quickness are realized, and the time of stopping due to replacement of the movable insert core block is reduced.

Description

Injection mold capable of quickly replacing movable insert core block

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold capable of rapidly replacing a movable insert core block.

Background

The injection mold is a molding mold which is most commonly applied in the production of thermoplastic plastic products, and specifically, the heated and melted plastic is injected into a mold cavity by an injection molding machine under high pressure, and the molded product is obtained after cooling and solidification. In addition, in the using process of the injection mold, one mold corresponds to one molded product, and the injection mold needs to be replaced when different products are injected.

The utility model patent with the publication number of CN214448183U discloses an injection mold capable of quickly replacing a movable insert core block, which comprises a lower clamping plate and an upper clamping plate, wherein the upper surface of the lower clamping plate is fixedly connected with a stripper plate, a plurality of first mounting holes are formed in the upper surface of the stripper plate, guide posts are movably connected in the first mounting holes, a lower cavity mold is fixedly connected to the top of each guide post, a cavity is formed in the upper surface of each lower cavity mold, a guide groove is formed in the bottom of each cavity, and core blocks are arranged in the cavities.

In the prior art, most of the core blocks of the die are installed through a plurality of bolt installation modes, the process is complicated, the downtime of the die can be increased intangibly, and after the product is cooled and molded in the core blocks, the product is in interference fit, so that the die is inconvenient to demould. Therefore, improvements are needed.

Disclosure of Invention

The utility model aims to provide an injection mold capable of quickly replacing a movable insert core block, which solves the problems that the mold core block in the prior art is inconvenient to replace and a product is inconvenient to demold.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an injection mold that can quick replacement insert core piece, includes the lower mould, goes up mould and insert core piece alive, go up mould and lower mould contact, sliding connection has insert core piece alive in the lower mould, insert core piece alive and go up mould contact, be provided with quick change mechanism jointly between insert core piece alive and the lower mould, sliding connection has the guide post in insert core piece alive, the top fixedly connected with roof of guide post, the bottom fixedly connected with clamp plate of guide post, roof and clamp plate all with insert core piece sliding connection alive, be provided with first spring in the insert core piece alive, go up fixedly connected with ejector pin on the mould, ejector pin and insert core piece sliding connection alive, the ejector pin contacts with the clamp plate.

Preferably, one end of the first spring is fixedly connected with the pressing plate, and the other end of the first spring is fixedly connected with the inner surface of the movable insert core block. By the arrangement of the first spring, the spring force can be applied to the top plate via the pressure plate.

Preferably, the quick-change mechanism comprises a plug bush, a plug rod, a bayonet lock, a second spring, a fixed sleeve, a knock pin, a travel block, a motor, a threaded shaft, a push block and a guide rod, wherein the plug bush is fixedly connected in a lower die, the plug rod is fixedly connected with the bottom of the movable insert block, the plug rod is in sliding connection with the plug bush, the bayonet lock is in sliding connection with the plug rod, the bayonet lock is in sliding connection with the plug bush, the second spring is arranged in the plug rod, the fixed sleeve is fixedly connected with the fixed sleeve, the knock pin is in sliding connection with the knock pin, the motor is arranged in the lower die, the threaded shaft is fixedly connected with the output shaft of the motor, the push block is in sliding connection with the knock pin through the threads. Through the setting of quick change mechanism, the quick replacement of the movable insert core piece of being convenient for.

Preferably, one end of the second spring is fixedly connected with the bayonet, and the other end of the second spring is fixedly connected with the inner surface of the inserted link. By providing the second spring, a spring force can be applied to the detent.

Preferably, the ejector pin is fixedly connected with a travel block, and the travel block is in sliding connection with the fixed sleeve. Through the setting of stroke piece, have the spacing effect of stroke to the knock pin.

Preferably, a guide rod is fixedly connected in the lower die, and the guide rod is in sliding connection with the pushing block. Through the setting of guide bar, have the guide effect to the removal of ejector pad.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the quick-change mechanism, the insert rod is arranged at the bottom of the movable insert core block and can be drawn into the insert sleeve of the lower die, the bayonet lock which stretches out and draws back through the spring is arranged in the insert rod, the bayonet lock is transversely inserted into the insert sleeve under the action of the elastic force, then the push block is driven by the motor to move, and the push block can push the bayonet lock out of the insert sleeve under the action of the ejector pin, so that the movable insert core block can be quickly disassembled and replaced, convenience and quickness are realized, and the time of stopping due to replacement of the movable insert core block is reduced.

2. According to the utility model, the pressing plate which is elastically supported by the spring is arranged in the movable core block, the guide column is arranged on the pressing plate, the top plate is arranged at the top of the guide, then the ejector rod is arranged on the upper die, when the upper die and the lower die are closed, the ejector rod is inserted into the lower die, the pressing plate is pressed down, so that the pressing plate is attached to the movable core block, and then the top plate is pushed back upwards under the action of the spring after the upper die and the lower die are separated, so that the top of a product molded in the movable core block is conveniently demoulded.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a front cross-sectional view of FIG. 1 of the present utility model;

fig. 3 is an enlarged view of the structure of the portion a of fig. 2 according to the present utility model.

In the figure: 1. a lower die; 2. an upper die; 3. a movable core block is inlaid; 4. a quick change mechanism; 5. a guide post; 6. a top plate; 7. a pressing plate; 8. a first spring; 9. a push rod; 41. a plug bush; 42. a rod; 43. a bayonet lock; 44. a second spring; 45. a fixed sleeve; 46. a knock pin; 47. a travel block; 48. a motor; 49. a threaded shaft; 410. a pushing block; 411. a guide rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, an injection mold capable of quickly replacing a movable insert comprises a lower mold 1, an upper mold 2 and a movable insert 3, wherein the upper mold 2 is in contact with the lower mold 1, the movable insert 3 is connected with the lower mold 1 in a sliding manner, the movable insert 3 is in contact with the upper mold 2, a guide post 5 is connected with the movable insert 3 in a sliding manner, a top plate 6 is fixedly connected with the top of the guide post 5, a pressing plate 7 is fixedly connected with the bottom of the guide post 5, the top plate 6 and the pressing plate 7 are both in sliding connection with the movable insert 3, a first spring 8 is arranged in the movable insert 3, one end of the first spring 8 is fixedly connected with the pressing plate 7, the other end of the first spring 8 is fixedly connected with the inner surface of the movable insert 3, an elastic force can act on the top plate 6 through the pressing plate 7, a push rod 9 is fixedly connected with the upper mold 2, the push rod 9 is connected with the movable insert 3 in a sliding manner, and the pressing plate 7 is in contact with the pressing plate 7.

Referring to fig. 2, a quick-change mechanism 4 is commonly disposed between the movable insert 3 and the lower die 1, the quick-change mechanism 4 includes a sleeve 41, a plug rod 42, a bayonet lock 43, a second spring 44, a fixing sleeve 45, a top pin 46, a travel block 47, a motor 48, a threaded shaft 49, a push block 410, and a guide rod 411, wherein the plug sleeve 41 is fixedly connected in the lower die 1, the plug rod 42 is fixedly connected to the bottom of the movable insert 3, the plug rod 42 is slidably connected with the plug sleeve 41, the bayonet lock 43 is slidably connected in the plug rod 42, the bayonet lock 43 is slidably connected with the plug sleeve 41, a second spring 44 is disposed in the plug rod 42, one end of the second spring 44 is fixedly connected with the bayonet lock 43, the other end of the second spring 44 is fixedly connected to the inner surface of the plug rod 42, by the arrangement of the second spring 44, a spring force can be applied to the bayonet lock 43, the fixing sleeve 45 is fixedly connected to the plug sleeve 41, the top pin 46 is slidably connected in the fixing sleeve 45, and the top pin 46 is in contact with the bayonet lock 43, the top pin 46 is fixedly connected with the top pin 47, and the top pin 47 is slidably connected with the fixing sleeve 45. The lift pins 46 are provided with a stroke limiting function by the provision of the stroke blocks 47.

Referring to fig. 2 and 3, an electric motor 48 is disposed in the lower die 1, a threaded shaft 49 is fixedly connected to an output shaft of the electric motor 48, a push block 410 is connected to the outside of the threaded shaft 49 through threads, the push block 410 is slidably connected to the ejector pin 46, a guide rod 411 is fixedly connected to the lower die 1, the guide rod 411 is slidably connected to the push block 410, the guide rod 411 is provided to guide movement of the push block 410, and the quick replacement mechanism 4 is provided to facilitate quick replacement of the movable insert 3.

The specific implementation process of the utility model is as follows: when the die is used, when the upper die 2 and the lower die 1 are clamped, the upper die 2 is inserted into the movable insert core block 3, then contacts and presses the pressing plate 7 downwards, then the pressing plate 7 compresses the first spring 8, the pressing plate 7 drives the top plate 6 to move downwards through the guide post 5 until the top plate 6 is attached to the movable insert core block 3, then injection molding of a product can be carried out, the product can be cooled and molded in the movable insert core block 3, after the molding, the upper die 2 and the lower die 1 are separated, and the top plate 6 pushes the product out of the movable insert core block 3 under the elasticity of the first spring 8, so that automatic demolding of the product is realized, and the die is convenient;

in addition, if the insert 3 needs to be replaced in the later stage, only the motor 48 needs to be started, the motor 48 drives the threaded shaft 49 to rotate, so that the push block 410 moves upwards, the push block 410 can squeeze the ejector pin 46, the ejector pin 46 pushes the bayonet 43 out of the insert 41, the restriction on the insert rod 42 is removed, the insert 3 can be taken out of the lower die 1, and the insert 3 is convenient and quick to use, and the time for stopping the machine due to replacement of the insert 3 is reduced.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Can quick replacement insert injection mold of core piece, including lower mould (1), go up mould (2) and insert core piece (3) alive, its characterized in that: the novel plastic die is characterized in that the upper die (2) is in contact with the lower die (1), the movable insert core block (3) is connected in the lower die (1) in a sliding mode, the movable insert core block (3) is in contact with the upper die (2), a quick change mechanism (4) is arranged between the movable insert core block (3) and the lower die (1) together, the guide post (5) is connected in the movable insert core block (3) in a sliding mode, the top of the guide post (5) is fixedly connected with the top plate (6), the bottom of the guide post (5) is fixedly connected with the pressing plate (7), the top plate (6) and the pressing plate (7) are both in sliding connection with the movable insert core block (3), a first spring (8) is arranged in the movable insert core block (3), an ejector rod (9) is fixedly connected to the upper die (2), and the ejector rod (9) is in sliding connection with the movable insert core block (3) in a sliding mode.

2. An injection mold capable of rapidly replacing a loose insert according to claim 1, wherein: one end of the first spring (8) is fixedly connected with the pressing plate (7), and the other end of the first spring (8) is fixedly connected with the inner surface of the movable insert core block (3).

3. An injection mold capable of rapidly replacing a loose insert according to claim 1, wherein: quick change mechanism (4) are including plug bush (41), inserted bar (42), bayonet lock (43), second spring (44), fixed sleeve (45), knock pin (46), stroke piece (47), motor (48), screw spindle (49), ejector sleeve (410), guide bar (411), fixedly connected with plug bush (41) in lower mould (1), the bottom fixedly connected with inserted bar (42) of movable insert core (3), inserted bar (42) and plug bush (41) sliding connection, sliding connection has bayonet lock (43) in inserted bar (42), bayonet lock (43) and plug bush (41) sliding connection, be provided with second spring (44) in inserted bar (42), fixedly connected with fixed sleeve (45) on plug bush (41), fixedly connected with knock pin (46) in fixed sleeve (45), ejector pin (46) and bayonet lock (43) contact, be provided with motor (48) in lower mould (1), fixedly connected with on output shaft (48) has screw spindle (49) and ejector pin (410) sliding connection.

4. An injection mold capable of rapidly replacing a loose insert according to claim 3, wherein: one end of the second spring (44) is fixedly connected with the bayonet (43), and the other end of the second spring (44) is fixedly connected with the inner surface of the inserted link (42).

5. An injection mold capable of rapidly replacing a loose insert according to claim 3, wherein: the ejector pin (46) is fixedly connected with a travel block (47), and the travel block (47) is in sliding connection with the fixed sleeve (45).

6. An injection mold capable of rapidly replacing a loose insert according to claim 3, wherein: a guide rod (411) is fixedly connected in the lower die (1), and the guide rod (411) is in sliding connection with the push block (410).