CN220973204U - Injection mold for automobile gear cover plate - Google Patents

Abstract

The application discloses an injection mold for an automobile gear cover plate, which comprises a base, an upper mold base, a lower mold base, a telescopic mechanism, a driving mechanism, an ejection device and a pushing device, wherein the lower mold base is arranged on the base; when the telescopic mechanism is suitable for driving the upper die holder to move up and down, the ejection device is firstly suitable for ejecting the product from the lower die holder, and then the pushing device is suitable for pushing the product out under the driving of the driving mechanism. The application has the beneficial effects that: when the die is opened, the ejection device ejects the product from the lower die holder, and then the pushing device pushes the product out under the driving of the driving mechanism, so that an automatic material taking is realized, a worker is not required to stretch hands into the die to take out the product, the safety is greatly improved, and the material taking efficiency is also improved.

Description

Injection mold for automobile gear cover plate

Technical Field

The application relates to the technical field of molds, in particular to an injection mold for an automobile gear cover plate.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a processing method used for mass production of parts with complex shapes, and specifically refers to that heated and melted plastics are injected into a mold cavity by an injection molding machine under high pressure, and after cooling and solidification, a formed product is obtained; in automobiles, many parts are molded using an injection mold, such as a gear cover plate of an automobile.

After injection molding is carried out on gear cover plate products, the products are usually taken out of the mold manually, workers are easily injured by the products which are not completely cooled, and meanwhile, the workers put hands in the mold, so that certain potential safety hazards exist; therefore, an injection mold for an automobile gear cover plate is provided to solve the technical problems.

Disclosure of utility model

One of the purposes of the application is to provide an injection mold for an automobile gear cover plate.

In order to achieve the above purpose, the application adopts the following technical scheme: the injection mold comprises a base, an upper mold base, a lower mold base, a telescopic mechanism, a driving mechanism, an ejection device and a pushing device, wherein the lower mold base is arranged on the base, the telescopic mechanism is arranged on the base and is connected with the upper mold base, the ejection device and the pushing device are both arranged on the lower mold base, and the pushing device is in matched connection with the upper mold base through the driving mechanism; when the telescopic mechanism is suitable for driving the upper die holder to move up and away from the die, the ejection device is firstly suitable for ejecting a product from the lower die holder, and then the pushing device is suitable for pushing the product out under the driving of the driving mechanism.

Preferably, the pushing device comprises a pushing plate, and the pushing plate is elastically and slidably arranged on the side part of the lower die holder; when the mould is opened, the push plate is suitable for moving under the driving of the driving mechanism until the product is pushed out, and then the push plate is suitable for moving and resetting under the action of elastic force; the push plate is adapted to remain stationary while the mold is closed.

Preferably, the driving mechanism comprises a first gear, a second gear, a first rack and a second rack, wherein the first gear is rotatably arranged on the lower die holder through a rotating shaft, the first rack is arranged on the push plate and meshed with the first gear, the second gear is arranged on the rotating shaft through a one-way bearing, and the second rack is arranged on the upper die holder and meshed with the second gear; when the die is opened, the one-way bearing is in a meshed state, and a toothed section of the second rack acts on the second gear so as to drive the pushing plate to move and push materials through the first gear and the first rack; when the second rack is separated from the second gear, the push plate is suitable for moving and resetting under the action of elasticity; the one-way bearing is in a free state when the mold is closed, at which time the push plate is adapted to remain stationary.

Preferably, the ejection device comprises a driving device, a top plate and a plurality of ejector pins, wherein the driving device is arranged in the lower die holder, the top plate is connected with the output end of the driving device, and the ejector pins are arranged on the top plate; when the die is opened, the driving device is suitable for driving the top plate to move upwards, so that the ejector pin ejects the product, and at the moment, the toothless section of the second rack is matched with the second gear.

Preferably, the ejection device comprises a top plate and a plurality of ejector pins, wherein the top plate is vertically and elastically installed inside the lower die holder in a sliding manner, and the ejector pins are installed on the top plate; when the die is closed, the bottom end of the rack II is propped against the top plate, so that the thimble is flush with the forming groove of the lower die holder; when the die is opened, the second rack is far away from the top plate, so that the top plate moves upwards under the action of elasticity until the ejector pin ejects a product, and at the moment, the toothless section of the second rack is matched with the second gear.

Preferably, a material guide plate is arranged on the side part of the lower die holder, and the material guide plate is obliquely arranged; the guide plate is adapted to cooperate with the pushed product.

Preferably, the telescopic mechanism comprises a telescopic piece, the telescopic piece is installed above the base through a bracket, and the upper die base is connected with the output end of the telescopic piece.

Preferably, a guide structure is arranged between the upper die holder and the lower die holder; when the die is closed, the guide structure is suitable for driving the upper die holder and the lower die holder to accurately close the die.

Compared with the prior art, the application has the beneficial effects that:

According to the utility model, the ejector device and the pushing device are arranged, when the die is opened, the ejector device ejects the product from the lower die holder, and then the pushing device pushes the product out under the driving of the driving mechanism, so that an automatic material taking is realized, a worker is not required to stretch hands into the die to take out the product, the safety is greatly improved, and meanwhile, the material taking efficiency is also improved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic rear side structure of the present utility model.

Fig. 3 is a schematic view of a partial structure of the present utility model.

Fig. 4 is an enlarged schematic view of the structure of the present utility model at a.

Fig. 5 is a schematic side view of the present utility model.

Fig. 6 is a schematic structural view of an ejector according to the present utility model.

In the figure: 1. a base; 2. a lower die holder; 3. an upper die holder; 4. a telescoping mechanism; 41. a telescoping member; 5. a driving mechanism; 51. a first gear; 52. a first rack; 53. a second rack; 531. a toothed segment; 532. a toothless section; 54. a second gear; 6. an ejector device; 61. a top plate; 62. a thimble; 7. a pushing device; 71. a push plate; 8. a guide structure; 81. a guide sleeve; 82. a guide post; 9. and a material guiding plate.

Detailed Description

The present application will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present application that the device or element referred to must have a specific azimuth configuration and operation.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

In one preferred embodiment of the present application, as shown in fig. 1 to 6, an injection mold for an automobile gear cover plate comprises a base 1, an upper mold base 3, a lower mold base 2, a telescopic mechanism 4, a driving mechanism 5, an ejector device 6 and a pushing device 7, wherein the lower mold base 2 is mounted on the base 1, the telescopic mechanism 4 is mounted on the base 1 and connected with the upper mold base 3, the ejector device 6 and the pushing device 7 are mounted on the lower mold base 2, and the pushing device 7 is in matched connection with the upper mold base 3 through the driving mechanism 5.

When the die is opened, namely the telescopic mechanism 4 can drive the upper die holder 3 to move upwards and the lower die holder 2 to separate, when the upper die holder 3 moves upwards to a certain distance, the ejection device 6 ejects a product from the lower die holder 2 at the moment, and then the pushing device 7 pushes the product out under the drive of the driving mechanism 5; therefore, an automatic material taking is realized, a worker is not required to stretch hands into the die to take out products, the safety is greatly improved, and meanwhile, the material taking efficiency is also improved.

In this embodiment, as shown in fig. 3 and 4, the pusher 7 includes a push plate 71, and the push plate 71 can be elastically slidably mounted by a spring at a side position of the lower die holder 2.

Specifically, when the die is opened, the push plate 71 moves under the driving of the driving mechanism 5, namely moves towards the direction of ejecting the product until the product is pushed out of the lower die holder 2, and when the upper die holder 3 continues to move upwards, the push plate 71 moves back and resets under the action of elastic force; while the mold is closed, the push plate 71 remains stationary.

Further, as shown in fig. 4, the driving mechanism 5 includes a first gear 51, a second gear 54, a first rack 52 and a second rack 53, wherein the first gear 51 is rotatably mounted on a side portion of the lower die holder 2 through a rotation shaft, the first rack 52 is fixedly mounted on the push plate 71, and the first rack 52 is meshed with the first rack 51; the second gear 54 is mounted on the rotating shaft through a one-way bearing, the second rack 53 is mounted on the upper die holder 3 and meshed with the second gear 54, and the second rack 53 is provided with an upper toothless section 532 and a lower toothed section 531.

For a more detailed understanding of the drive mechanism 5, the working principle thereof is described below:

As shown in fig. 5, assuming an initial mold opening state, when the mold is closed, the upper mold base 3 drives the rack two 53 to move downwards, the toothed section 531 of the rack two 53 acts on the gear two 54 to rotate anticlockwise, but the unidirectional bearing is in a free state at this time, although the rack two 53 can drive the gear two 54 to rotate, the gear two 54 can not drive the rotating shaft to rotate, namely, the push plate 71 can keep a static state at this time, and interference can not be caused to the mold closing of the mold.

When the die is opened, that is, the upper die holder 3 drives the rack two 53 to move upwards, at this time, the toothless section 532 of the rack two 53 is engaged with the gear two 54, and in this process: the ejection device 6 ejects the product in the lower die holder 2 for a distance; then the toothed section 531 of the second rack 53 is matched with the second gear 54, that is, the toothed section 531 of the second rack 53 acts on the second gear 54 to rotate clockwise, at this time, the unidirectional bearing is in a meshed state, the second gear 54 drives the rotating shaft to rotate, as shown in fig. 4, the rotating shaft drives the first gear 51 to rotate, the first gear 51 acts on the first rack 52, and the push plate 71 moves towards the ejected product until the product is pushed out from the lower die holder 2 to automatically take materials; then, the upper die holder 3 drives the rack two 53 to move upwards, when the upper die holder 3 moves upwards to the limit position, the toothed section 531 of the rack two 53 is separated from the gear two 54, and under the action of the elastic force of the spring, the push plate 71 moves back and resets to perform the next injection molding.

In this embodiment, the ejector 6 has various structural forms, including but not limited to the following two forms:

Structure one: the ejector 6 is commonly used in the prior art, and comprises a driving device (typically a hydraulic cylinder or a pneumatic cylinder), a top plate 61 and a plurality of ejector pins 62, wherein the driving device is installed in the lower die holder 2, the top plate 61 is connected with an output end of the driving device, and the ejector pins 62 are installed on the top plate 61.

When the die is opened, the ejector device 6 moves before the pushing device 7, namely the driving device drives the top plate 61 to move upwards, and then the product in the lower die holder 2 is ejected out through the ejector pins 62 which move upwards; of course, at this time, the toothless section 532 of the second rack 53 is engaged with the second gear 54, and it is understood that the toothed section 531 of the second rack 53 is engaged with the second gear 54 only when the product is completely ejected, so that the ejected product is pushed out by the push plate 71.

And (2) a structure II: as shown in fig. 6, the ejector 6 includes a top plate 61 and a plurality of ejector pins 62, and the top plate 61 is slidably mounted inside the lower die holder 2 by springs, the ejector pins 62 being mounted on the top plate 61.

It will be appreciated that the ejector pin 62 extends out of the forming groove of the lower die holder 2 under the action of the spring force of the spring; when the die is closed, namely, the bottom end of the rack II 53 on the upper die holder 3 is propped against the top plate 61, the top plate 61 is at the bottommost position, the spring is in a compressed state, and the top end of the ejector pin 62 and the bottom end of the forming groove of the lower die holder 2 are in a flush state.

When the die is opened, the upper die holder 3 drives the second rack 53 to be far away from the top plate 61, so that the top plate 61 moves upwards under the action of the elastic force of the spring until the ejector pin 62 ejects the product; of course, at this time, the toothless section 532 of the second rack 53 is engaged with the second gear 54, and it is understood that the toothed section 531 of the second rack 53 is engaged with the second gear 54 only when the product is completely ejected, so that the ejected product is pushed out by the push plate 71.

It should be noted that, the first structure needs to adopt an additional driving source, and the second structure can eject the product only under the action of elastic force, so that the second structure is preferably adopted, but a person skilled in the art selects according to actual conditions, and the additional driving source is not needed, so that the cost is saved.

In this embodiment, as shown in fig. 1, a material guiding plate 9 may be installed on a side portion of the lower die holder 2, where the material guiding plate 9 is disposed obliquely downward; it will be appreciated that when the push plate 71 pushes the product out of the die holder 2, the pushed product will drop onto the guide plate 9, and a collecting box may be placed under the guide plate 9, so as to collect the product in a concentrated manner.

In this embodiment, as shown in fig. 1, the telescopic mechanism 4 includes a telescopic member 41 (generally, a hydraulic cylinder is used), a bracket is mounted on the top end of the base 1, the telescopic member 41 is mounted on the bracket, and the upper die holder 3 is connected with the output end of the telescopic member 41, that is, the upper die holder 3 is driven to open and close by the telescopic member 41.

In this embodiment, as shown in fig. 3, a guide structure 8 is provided between the upper die holder 3 and the lower die holder 2; when the die is closed, the guide structure 8 can drive the upper die holder 3 and the lower die holder 2 to be accurately closed.

Specifically, the guiding structure 8 includes a guiding sleeve 81 and a guiding post 82, and the guiding sleeve 81 and the guiding post 82 are installed in various ways, including but not limited to the following two ways:

mode one: the guide sleeve 81 is mounted on the upper die holder 3, and the guide post 82 is mounted on the lower die holder 2.

Mode two: the guide sleeve 81 is mounted on the lower die holder 2, and the guide post 82 is mounted on the upper die holder 3.

And the number of the guide sleeves 81 and the guide posts 82 is preferably four, and the guide sleeves and the guide posts are respectively positioned at four corners of the lower die holder 2 and the upper die holder 3.

The working principle of the utility model is as follows:

We will describe the structure of the ejector 6 as a second example: when the die is opened, the upper die holder 3 drives the rack II 53 to be far away from the top plate 61, so that the top plate 61 moves upwards under the action of the elasticity of the spring until the ejector pin 62 ejects a product, at the moment, the toothless section 532 of the rack II 53 is matched with the gear II 54, when the product is completely ejected, the toothed section 531 of the rack II 53 is meshed with the gear II 54, at the moment, the one-way bearing is in a meshed state, the gear II 54 drives the rotating shaft to rotate, as shown in fig. 4, the rotating shaft drives the gear I51 to rotate, the gear I51 acts on the rack I52, and then the push plate 71 moves towards the ejected product until the product is pushed out of the lower die holder 2 onto the guide plate 9, when the upper die holder 3 moves upwards to a limit position, at the moment, the toothed section 531 of the rack II 53 is separated from the gear II 54, and the push plate 71 moves back and resets under the elasticity of the spring;

When the die is closed, the upper die holder 3 drives the second rack 53 to move downwards, the toothed section 531 of the second rack 53 acts on the second gear 54 to rotate anticlockwise, but at the moment, the one-way bearing is in a free state, so that the push plate 71 can keep a static state, interference can not be caused to the die closing of the die, when the second rack 53 moves downwards to a limit position, the second rack 53 can move the top plate 61 to the bottommost position in a pressing manner, the spring is in a compressed state, and the top end of the ejector pin 62 and the bottom end of the forming groove of the lower die holder 2 are in a flush state.

In summary, the ejection and pushing of the product from the lower die holder 2 are linked through the movement of the upper die holder 3, and no additional driving source is adopted, so that the cost is saved, the safety is greatly improved, and the material taking efficiency is also improved.

The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims (8)

1. An injection mold for an automotive gear cover plate, comprising: the device comprises a base, an upper die holder, a lower die holder, a telescopic mechanism, a driving mechanism, an ejection device and a pushing device, wherein the lower die holder is arranged on the base, the telescopic mechanism is arranged on the base and is connected with the upper die holder, the ejection device and the pushing device are arranged on the lower die holder, and the pushing device is in matched connection with the upper die holder through the driving mechanism;

When the telescopic mechanism is suitable for driving the upper die holder to move up and away from the die, the ejection device is firstly suitable for ejecting a product from the lower die holder, and then the pushing device is suitable for pushing the product out under the driving of the driving mechanism.

2. The automotive gear cover plate injection mold of claim 1, wherein: the pushing device comprises a pushing plate, and the pushing plate is elastically and slidably arranged on the side part of the lower die holder; when the mould is opened, the push plate is suitable for moving under the driving of the driving mechanism until the product is pushed out, and then the push plate is suitable for moving and resetting under the action of elastic force; the push plate is adapted to remain stationary while the mold is closed.

3. The automotive gear cover plate injection mold of claim 2, wherein: the driving mechanism comprises a first gear, a second gear, a first rack and a second rack, wherein the first gear is rotatably arranged on the lower die holder through a rotating shaft, the first rack is arranged on the push plate and meshed with the first gear, the second gear is arranged on the rotating shaft through a one-way bearing, and the second rack is arranged on the upper die holder and meshed with the second gear;

when the die is opened, the one-way bearing is in a meshed state, and a toothed section of the second rack acts on the second gear so as to drive the pushing plate to move and push materials through the first gear and the first rack; when the second rack is separated from the second gear, the push plate is suitable for moving and resetting under the action of elasticity;

the one-way bearing is in a free state when the mold is closed, at which time the push plate is adapted to remain stationary.

4. The automotive gear cover plate injection mold of claim 3, wherein: the ejection device comprises a driving device, a top plate and a plurality of ejector pins, wherein the driving device is arranged in the lower die holder, the top plate is connected with the output end of the driving device, and the ejector pins are arranged on the top plate;

When the die is opened, the driving device is suitable for driving the top plate to move upwards, so that the ejector pin ejects the product, and at the moment, the toothless section of the second rack is matched with the second gear.

5. The automotive gear cover plate injection mold of claim 3, wherein: the ejection device comprises a top plate and a plurality of ejector pins, wherein the top plate is vertically and elastically installed in the lower die holder in a sliding manner, and the ejector pins are installed on the top plate;

when the die is closed, the bottom end of the rack II is propped against the top plate, so that the thimble is flush with the forming groove of the lower die holder;

When the die is opened, the second rack is far away from the top plate, so that the top plate moves upwards under the action of elasticity until the ejector pin ejects a product, and at the moment, the toothless section of the second rack is matched with the second gear.

6. The automotive gear cover plate injection mold of any one of claims 1-5, wherein: the side part of the lower die holder is provided with a material guide plate which is obliquely arranged; the guide plate is adapted to cooperate with the pushed product.

7. The automotive gear cover plate injection mold of claim 6, wherein: the telescopic mechanism comprises a telescopic piece, the telescopic piece is installed above the base through a bracket, and the upper die base is connected with the output end of the telescopic piece.

8. The automotive gear cover plate injection mold of claim 1, wherein: a guide structure is arranged between the upper die holder and the lower die holder; when the die is closed, the guide structure is suitable for driving the upper die holder and the lower die holder to accurately close the die.