CN211616468U - Core pulling mechanism and injection mold - Google Patents

Abstract

The utility model provides a mechanism of loosing core and injection mold relates to mould technical field. The core pulling mechanism comprises a first core pulling mechanism, the first core pulling mechanism comprises a first driving device, a sliding block and a core pulling inclined top assembly, and the core pulling inclined top assembly comprises a core pulling inclined top and a spring; the first driving device is connected with the sliding block and is used for driving the sliding block to do linear motion; the core pulling inclined top is connected with the sliding block in a sliding mode along a first sliding direction, and the first sliding direction is arranged in an inclined mode relative to the moving direction of the sliding block; one end of the core-pulling inclined top, which is close to the first driving device, is connected with the sliding block through a spring, and when the first core-pulling mechanism is in a die-closing state, the spring is in a compression state. Through the cooperation of slider, spring and the oblique top of loosing core, set up the spring into compression state when the compound die to offset the displacement of the setting direction of the oblique top of loosing core in the die sinking process, realize turning into the motion of the oblique top of loosing core in the motion of setting for the direction of loosing core with the motion of slider, simple structure, occupation space is little.

Description

Core pulling mechanism and injection mold

Technical Field

The utility model relates to the technical field of molds, particularly, relate to a mechanism of loosing core and injection mold.

Background

In the existing injection mold, the movable mold plate and the fixed mold plate are usually matched, the core pulling sliding blocks on two sides are driven by the inclined guide pillars to pull the core of the product, and the core pulling mechanism is complex and occupies a large space due to the arrangement of the core pulling mechanisms such as the movable mold, the fixed mold and the like.

SUMMERY OF THE UTILITY MODEL

To the above technical problem, the utility model provides a relatively simple structure and occupation space less mechanism of loosing core relatively.

In order to solve the problems, the utility model provides a core-pulling mechanism, which comprises a first core-pulling mechanism, wherein the first core-pulling mechanism comprises a first driving device, a slide block and a core-pulling inclined top component, and the core-pulling inclined top component comprises a core-pulling inclined top and a spring; the first driving device is connected with the sliding block and is used for driving the sliding block to do linear motion; the core-pulling inclined top is connected with the sliding block in a sliding mode along a first sliding direction, and the first sliding direction is arranged obliquely relative to the moving direction of the sliding block; one end, close to the first driving device, of the core pulling inclined top is connected with the sliding block through the spring, and when the first core pulling mechanism is in a die assembly state, the spring is in a compression state.

Therefore, through the matching of the sliding block, the spring and the core-pulling lifter, the spring is set to be in a compression state during die assembly, so that the displacement of the core-pulling lifter in the set direction is counteracted in the die opening process, the motion of the sliding block is converted into the motion of the core-pulling lifter in the set core-pulling direction, the structure is simple, and the occupied space is small.

Optionally, an inclined guide groove is formed in the slider, the inclined guide groove is arranged obliquely relative to the moving direction of the slider, at least part of the core-pulling inclined top is accommodated in the inclined guide groove, and the core-pulling inclined top is slidably connected with the inclined guide groove.

Therefore, through the arrangement of the inclined guide groove and the action of the inclined guide groove and the core-pulling inclined top, the movement of the sliding block is converted into the core-pulling movement of the core-pulling inclined top.

Optionally, a limiting groove is formed in the core-pulling inclined top, the limiting groove is arranged along the first sliding direction, a limiting structure is arranged on the sliding block, and the limiting structure is connected with the limiting groove in a sliding mode.

Therefore, through the arrangement of the limiting groove and the limiting structure, the core-pulling inclined top can be limited in the limiting groove, the limiting structure is limited in the limiting groove, and the distance of upward core pulling of the core-pulling inclined top can be limited. In addition, through limit structure with the effect of spacing groove, avoid the spring direct pulling the oblique top of loosing core causes the damage of spring.

Optionally, the core-pulling lifter assembly further comprises a lifter base, the lifter base is mounted on the slider, and the spring is connected with the lifter base and the core-pulling lifter respectively.

Therefore, the slider is prevented from being damaged due to the direct action of the slider and the core-pulling inclined top, and the slider is protected.

Optionally, a containing groove is formed in the core-pulling inclined top and used for containing the spring.

Therefore, the spring can be protected through the arrangement of the accommodating groove.

Optionally, the first core pulling mechanism further comprises a first guide block, the first guide block is connected with the movable template, and the first guide block is used for limiting the sliding block to make linear motion.

Therefore, the first guide block is arranged, and the motion of the sliding block is limited.

Optionally, a first T-shaped buckle is arranged on the slider, and the first T-shaped buckle is used for being connected with the first driving device.

Therefore, the first driving device is connected with the sliding block through the T-shaped buckle, and the first driving device is convenient to mount through the design of the T-shaped buckle.

Optionally, the core back lifter assembly is multiple.

Therefore, through the arrangement of the core-pulling inclined ejection assemblies, core pulling of different structures of products is achieved, and the structure is simple.

Optionally, an included angle is formed between the adjacent core-pulling inclined tops.

Therefore, the core pulling of different structures of the product in different directions is realized.

Optionally, the core pulling mechanism further comprises a second core pulling mechanism, the second core pulling mechanism comprises a second driving device and a core pulling sliding block, the second driving device is connected with the core pulling sliding block, and the second driving device is used for driving the core pulling sliding block to do linear motion.

Therefore, the core pulling of different structures of the product is realized through the matching of the second core pulling mechanism and the first core pulling mechanism.

Optionally, the second core pulling mechanism further comprises a limiting block, the limiting block is connected with the core pulling slider, and the limiting block is used for limiting the displacement of the core pulling inclined top in the movement direction of the slider.

Therefore, the core-pulling guide function of the core-pulling inclined ejector assembly is realized by arranging the limiting block on the core-pulling sliding block.

Optionally, the first core pulling mechanism further comprises an inclined top guide slider, the inclined top guide slider is mounted on the core pulling inclined top, and when the first core pulling mechanism is in a die assembly state, the inclined top guide slider is in contact with the limiting block.

Therefore, through the arrangement of the inclined top guide sliding block, the core-pulling inclined top is prevented from directly acting on the limiting block, and the protection of the core-pulling inclined top is realized.

Optionally, the second core pulling mechanism further comprises a second guide block, the second guide block is connected with the movable mold plate, and the second guide block is used for limiting the core pulling slide block to make linear motion.

Therefore, the second guide block is arranged, and the movement of the core-pulling sliding block is limited.

Optionally, a second T-shaped buckle is arranged on the core pulling slider and used for being connected with the second driving device.

Therefore, the second driving device is connected with the core-pulling sliding block through the T-shaped buckle, and the second driving device is convenient to mount through the design of the T-shaped buckle.

The utility model also provides an injection mold, including above-mentioned arbitrary mechanism of loosing core. The beneficial effects of the injection mold are the same as those of the core-pulling mechanism, and are not described again here.

Drawings

Fig. 1 is a schematic structural diagram of a product according to an embodiment of the present invention;

fig. 2 is a schematic view of a core-pulling mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first core-pulling mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second core pulling mechanism according to an embodiment of the present invention;

FIG. 5 is an exploded view of the core pulling lifter assembly according to the embodiment of the present invention;

fig. 6 is a front view of the core-pulling mechanism in closing the dies according to the embodiment of the present invention;

FIG. 7 is a front view of the core-pulling mechanism during mold opening according to the embodiment of the present invention;

fig. 8 is the utility model discloses stopper and guide block's cooperation schematic diagram.

Description of reference numerals:

1-product, 11-buckle, 2-first core-pulling mechanism, 21-first driving device, 22-sliding block, 221-limiting structure, 222-inclined guide groove, 223-first T-shaped buckle, 23-core-pulling inclined top component, 231-core-pulling inclined top, 232-inclined top guide sliding block, 233-limiting groove, 234-spring, 235-inclined top base, 236-accommodating groove, 24-first guide block, 25-support, 3-second core-pulling mechanism, 31-second driving device, 32-core-pulling sliding block, 33-limiting block, 34-second guide block and 35-second T-shaped buckle.

Detailed Description

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or a rotatable connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In addition, all directions or positional relationships mentioned in the embodiments of the present invention are positional relationships based on the drawings, and are only for convenience of describing the present invention and simplifying the description, but not for implying or implying that the device or element referred to must have a specific orientation, and should not be understood as limiting the present invention. The utility model discloses in be provided with XY coordinate system, wherein the forward of X axle stands rightwards, and the reverse left that stands of X axle, the forward top that stands of Y axle, the reverse below that stands of Y axle, wherein, "left", "right", "go up" and "down" do not constitute the restriction to concrete structure, only based on the position in the drawing. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment of the utility model provides a mechanism of loosing core, as shown in fig. 2 and fig. 3, including first mechanism of loosing core 2, first mechanism of loosing core 2 includes first drive arrangement 21, slider 22 and the oblique top subassembly 23 of loosing core, the oblique top subassembly 23 of loosing core includes the oblique top 231 of loosing core and spring 234; the first driving device 21 is connected with the sliding block 22, and the first driving device 21 is used for driving the sliding block 22 to do linear motion; the core-pulling inclined top 231 is connected with the slider 22 in a sliding manner along a first sliding direction, and the first sliding direction is arranged obliquely relative to the moving direction of the slider 22; one end of the core-pulling sloping roof 231 close to the first driving device 21 is connected with the slide block 22 through the spring 234, and when the first core-pulling mechanism 2 is in a mold closing state, the spring 234 is in a compression state.

It should be noted that the first sliding direction is only for convenience of description later, the first sliding direction refers to a sliding direction of the core pulling slanted ejecting 231 relative to the slider 22, and the direction in which the slider 22 slides of the core pulling slanted ejecting 231 is different from the direction in which the first driving device 21 drives the slider 22 to move, that is, the direction in which the slider 22 slides of the core pulling slanted ejecting 231 is arranged at a certain angle with the direction in which the slider 22 is driven by the first driving device 21. One end of the core-pulling inclined top 231, which is close to the first driving device 21, may be directly connected to the slider 22 through the spring 234, and one end of the core-pulling inclined top 231, which is close to the first driving device 21, may also be connected to the slider 22 through connection between the spring 234 and other structures. Here, the first driving device 21 is attached to the movable die plate by the mount 25, but the first driving device 21 may be attached to other supporting structures by the mount 25.

Therefore, when the slide 22 moves linearly, the slide 22 can drive the core pulling slanted ejecting part 231 to move. As shown in fig. 6, a mold core is arranged on the upper end surface or the lower end surface of the core pulling lifter, and is used for pulling a core of a structure, when the mold is opened, the slider 22 moves in the forward direction of the X axis, because the core pulling lifter 231 is obliquely arranged relative to the X axis, the slider 22 applies an acting force in the X axis direction and an acting force in the Y axis direction to the core pulling lifter 231, because the spring 234 is in a compressed state, here, the stretching direction of the spring 234 is the same as the first sliding direction, and the spring 234 pushes the core pulling lifter 231 to move in the reverse direction of the X axis, so that the acting force of the core pulling lifter 231 in the X axis direction can be offset, and the core pulling lifter 231 moves in the Y axis direction to realize core pulling in the Y axis direction. Here, taking the uppermost core-pulling lifter 231 in fig. 6 as an example, when the mold is opened, the slider 22 moves forward along the X axis to drive the core-pulling lifter 231 to move upward and rightward, the spring 234 pushes the core-pulling lifter 231 to move upward and leftward, so as to counteract the movement of the core-pulling lifter 231 along the X axis, and the core-pulling lifter 231 moves forward along the Y axis to realize core pulling. When the slide block 22 continues to move forward to the X axis, the spring 234 returns to the initial state, and at this time, because the core-pulling sloping roof 231 is connected with the slide block 22 through the spring 234, the core-pulling sloping roof 231 moves rightward along with the slide block 22.

As shown in fig. 6, the spring 234 is disposed obliquely with respect to the first core pulling direction of the core pulling slanted ejecting 231, the first core pulling direction is disposed along the Y axis forward direction, and when the slider 22 moves to the right, the spring 234 may also provide power for core pulling of the core pulling slanted ejecting 231.

The advantage that sets up like this is that through slider 22, spring 234 with the cooperation of loosing core lifter 231 will the spring 234 sets up to compression state when the compound die to offset the displacement of the setting direction of loosing core lifter 231 in the die sinking process, realize with the motion of slider 22 converts into the motion of loosing core lifter 231 in setting for the direction of loosing core, simple structure, occupation space is little.

As shown in fig. 6 and 7, the slider 22 is provided with an inclined guide groove 222, the inclined guide groove 222 is arranged obliquely with respect to the moving direction of the slider 22, the core pulling inclined top 231 is at least partially accommodated in the inclined guide groove 222, and the core pulling inclined top 231 is slidably connected with the inclined guide groove 222.

It should be noted that the inclined guide groove 222 and the moving direction of the slider 22 form an included angle, as shown in fig. 6, an opening of the inclined guide groove 222 is perpendicular to the slider 22, the core pulling inclined top 231 may be completely accommodated in the inclined guide groove 222, and the core pulling inclined top 231 may also be partially accommodated in the inclined guide groove 222. Here, taking the uppermost core-pulling slanted ejecting 231 in fig. 6 as an example, during mold opening, the slider 22 moves rightward, the side wall of the slanted guide groove 222 applies a pushing force to the core-pulling slanted ejecting 231, and since the spring 234 is in a compressed state, the spring 234 applies an upward pushing force to the core-pulling slanted ejecting 231 leftward, so as to counteract the movement of the core-pulling slanted ejecting 231 on the X axis, and the core-pulling slanted ejecting 231 moves forward on the Y axis, thereby implementing core pulling.

The advantage of such an arrangement is that, through the arrangement of the inclined guide groove 222, the movement of the slider 22 is converted into the core pulling movement of the core pulling inclined top 231 through the action of the inclined guide groove 222 and the core pulling inclined top 231.

As shown in fig. 5, a limiting groove 233 is formed in the core-pulling lifter 231, the limiting groove 233 is arranged along the first sliding direction, a limiting structure 221 is arranged on the slider 22, and the limiting structure 221 is slidably connected with the limiting groove 233.

It should be noted that the direction of the limiting groove 233 is the same as that of the inclined guide groove 222, the limiting structure 221 may be a limiting screw or a limiting block, the limiting structure 221 is inserted into the limiting groove 233, the limiting structure 221 may slide relative to the inclined guide groove 222 along the first sliding direction, the limiting structure 221 passes through the limiting groove 233 and is fixed on the slider 22, on one hand, the core-pulling lifter 231 is limited in a direction perpendicular to the slider 22, that is, the core-pulling lifter 231 is limited in a direction perpendicular to the X axis/Y axis; on the other hand, as shown in fig. 6, during mold closing, the limiting structure 221 is located on the left side of the limiting groove 233, as shown in fig. 7, when the slider 22 moves rightward, the limiting structure 221 is driven to move rightward, when the limiting structure 221 moves to the rightmost end of the limiting groove 233, the limiting structure 221 and the limiting groove 233 act, and when the slider 22 continues to move rightward, the limiting structure 221 and the right end of the limiting groove 233 act to pull the core pulling lifter 231 to move rightward.

The advantage of setting up like this is that, through the setting of spacing groove 233 and limit structure 221, can with the oblique top of loosing core 231 is restricted in spacing groove 233, with limit structure 221 is restricted in spacing groove 233, can be to the distance of loosing core to the top of loosing core 231 and upwards limit. In addition, the damage of the spring 234 caused by the spring 234 directly pulling the core-pulling inclined top 231 is avoided through the action of the limiting structure 221 and the limiting groove 233.

As shown in fig. 5, the core-pulling pitched roof assembly 23 further includes a pitched roof base 235, the pitched roof base 235 is installed on the slider 22, and the spring 234 is connected to the pitched roof base 235 and the core-pulling pitched roof 231, respectively. That is to say, the inclined top base 235 is installed on the slider 22, and the core-pulling inclined top 231 is connected with the inclined top base 235 through the spring 234 to realize the connection between the core-pulling inclined top 231 and the slider 22. Therefore, the slider 22 is prevented from being damaged due to the direct action of the slider 22 and the core-pulling inclined top 231, and the slider 22 is protected. It should be noted that an end surface of the slanted ejecting base 235 close to one side of the core pulling slanted ejecting 231 is perpendicular to the first sliding direction. The inclined top base 235 is close to the end face of one side of the core-pulling inclined top 231 and connected with the spring 234, and the spring 234 stretches along the first sliding direction, so that the end face of the inclined top base 235 close to one side of the core-pulling inclined top 231 is perpendicular to the first sliding direction, and the stretching stability of the spring can be guaranteed.

As shown in fig. 6, the core-pulling sloping roof 231 is provided with a receiving groove 236, and the receiving groove 236 is used for receiving the spring 234. As shown in fig. 6, when the mold is closed, the spring 234 is completely received in the receiving groove 236, and as shown in fig. 7, when the mold is opened, the slider 22 pulls the spring 234 to move, so that the spring 234 is exposed to the receiving groove 236. Here, the receiving groove 236 is provided on an end surface of the core back inclined top 231 on the side close to the first driving device 21, and the spring 234 can be protected by the provision of the receiving groove 236.

As shown in fig. 6, the first core pulling mechanism 2 further includes a first guide block 24, the first guide block 24 is connected to the movable die plate, and the first guide block 24 is used for limiting the slide block 22 to make a linear motion. Here, there are two first guide blocks 24, the two first guide blocks 24 are respectively located at upper and lower sides of the slider 22, the first guide blocks 24 are parallel to the sliding direction of the slider 22, and the slider 22 moves linearly along the first guide blocks 24. Therefore, the first guide block 24 is arranged to limit the movement of the sliding block 22.

As shown in fig. 3, a first T-shaped buckle 223 is disposed on the sliding block 22, and the first T-shaped buckle 223 is used for connecting with the first driving device 21. As shown in fig. 6, the first T-shaped buckle 223 is disposed on the right end surface of the slider 22, and the first driving device 21 may be an oil cylinder or another device capable of performing a reciprocating linear motion. When the first driving device 21 adopts an oil cylinder, a T-shaped boss matched with the first T-shaped buckle 223 is arranged on a push rod of the oil cylinder, and the first T-shaped buckle 223 is connected with the T-shaped boss in a clamping mode. The connection between the first driving device 21 and the sliding block 22 is realized through the T-shaped buckle, and the installation of the first driving device 21 is facilitated through the design of the T-shaped buckle.

As shown in fig. 1, a plurality of clips 11 are generally provided on one product 1, and in the conventional core-pulling mechanism in which a movable mold and a fixed mold are engaged with each other, since the structure is complicated, when a plurality of clips 11 are molded simultaneously, interference between the structures is likely to occur.

As shown in fig. 2, there are a plurality of the core back lifter assemblies 23. As shown in fig. 6, the slider 22 is provided with a plurality of inclined guide grooves 222, each inclined guide groove 222 is provided with the core-pulling inclined top 231, two adjacent inclined guide grooves 222 are arranged at a set angle, where two adjacent inclined guide grooves 222 are arranged at an acute angle, taking the uppermost two inclined guide grooves 222 in fig. 6 as an example, the uppermost core-pulling inclined top assembly 23 is a first core-pulling inclined top assembly, the first core-pulling inclined top assembly includes a first core-pulling inclined top and a first spring, the first core-pulling inclined top is at least partially accommodated in the first inclined guide groove (the uppermost inclined guide groove in fig. 6), the second core-pulling inclined top assembly 23 from top to bottom is a second core-pulling inclined top assembly, the second core-pulling inclined top assembly includes a second core-pulling inclined top and a second spring, the second core-pulling inclined top is at least partially accommodated in the second inclined guide groove (the second inclined guide groove from top to bottom in fig. 6), when the sliding block moves rightwards, the first inclined guide groove applies acting force to the first core pulling inclined top rightwards and upwards, the first spring applies acting force to the first core pulling inclined top leftwards and upwards, and the first core pulling inclined top upwards performs core pulling; meanwhile, the second inclined guide groove applies acting force to the second core-pulling inclined top towards the right lower side, the second spring applies acting force to the second core-pulling inclined top towards the left lower side, and the second core-pulling inclined top downwards performs core pulling. Through a plurality of the setting of the oblique top subassembly 23 of loosing core, realized loosing core simultaneously to product different structures, simple structure moreover. In addition, an included angle is formed between the adjacent core-pulling inclined tops 231, so that the core pulling of different structures of products in different directions is realized.

Since the product is often provided with a plurality of different structures, the product needs to be formed separately. As shown in fig. 2, the core pulling mechanism further includes a second core pulling mechanism 3, the second core pulling mechanism 3 includes a second driving device 31 and a core pulling slider 32, the second driving device 31 is connected to the core pulling slider 32, and the second driving device 31 is configured to drive the core pulling slider 32 to perform linear motion.

As shown in fig. 6, the second core pulling mechanism 3 drives the core pulling slider 32 to move leftward to achieve core pulling in a second core pulling direction, the second core pulling direction is the same as the X-axis direction, and the second driving device 31 may adopt an oil cylinder or other devices capable of achieving reciprocating linear motion. Therefore, the core pulling of different structures of the product is realized through the matching of the second core pulling mechanism 3 and the first core pulling mechanism 2.

As shown in fig. 6, the second core pulling mechanism 3 further includes a limiting block 33, the limiting block 33 is connected to the core pulling slider 32, and the limiting block 33 is used for limiting the displacement of the core pulling slanted ejecting 231 in the moving direction of the slider 22.

It should be noted that the end surface of the limiting block 33 close to the first core pulling mechanism 2 is parallel to the first core pulling direction. When the mold is closed, the core-pulling inclined top component 23 is contacted with the limiting block 33, when core pulling is carried out, the first core pulling mechanism 2 drives the slide block 22 to move rightwards, the core pulling inclined top 231 keeps contact with the limiting block 33 under the action of the spring 234, at this time, the core pulling inclined top 231 moves upwards along the limiting block 33, the core pulling is performed on the first characteristic of the product, when the limiting structure 221 moves to the rightmost end of the limiting groove 233, the core-pulling lifter 231 stops moving upwards, at this time, the second core-pulling mechanism 3 starts to pull the core, the second driving device 31 drives the core-pulling slider 32 to move leftwards, because the limiting block 33 is arranged on the core-pulling slide block 32, the limiting block 33 moves leftwards to relieve the limitation of the core-pulling inclined top assembly 23, the core-pulling slide block 32 is used for pulling the core leftwards, and the slide block 22 drives the core-pulling inclined ejection assembly 23 to move rightwards to realize die opening. Here, a sensor may be disposed on the limit block 33, and is configured to sense the core-pulling lifter assembly 23, and when the core-pulling lifter assembly 23 is far away from the limit block 33, the second core-pulling mechanism 3 is controlled to move. The core-pulling guide function of the core-pulling inclined ejecting component 23 is realized by arranging the limiting block 33 on the core-pulling sliding block 32.

As shown in fig. 5, the core-pulling lifter assembly 23 further includes a lifter guide slider 232, the lifter guide slider 232 is mounted on the core-pulling lifter 231, and as shown in fig. 8, when the first core-pulling mechanism 2 is in a mold closing state, the lifter guide slider 232 contacts with the limiting block 33. Here, the slanted ejecting guide slider 232 may be mounted on the core-pulling slanted ejecting 231 in a clamping manner or a threaded connection manner, an end surface of the slanted ejecting guide slider 232 on a side close to the limiting block 33 is attached to an end surface of the limiting block 33 on a side close to the slanted ejecting guide slider 232, and when the first core-pulling mechanism 2 performs core-pulling, the slanted ejecting guide slider 232 moves upward relative to the limiting block 33. Through the setting of the inclined top guide sliding block 232, the core-pulling inclined top 231 is prevented from being directly acted with the limiting block 33, and the protection of the core-pulling inclined top 231 is realized.

As shown in fig. 4, the second core pulling mechanism 3 further includes a second guide block 34, the second guide block 34 is connected to the movable platen, and the second guide block 34 is used for limiting the core pulling slider 32 to make a linear motion. Here, there are two second guide blocks 34, the two second guide blocks 34 are respectively located at the upper side and the lower side of the core back slide block 32, the second guide blocks 34 are parallel to the sliding direction of the core back slide block 32, and the core back slide block 32 moves linearly along the second guide blocks 34. Therefore, the movement of the core pulling slide block 32 is limited by the arrangement of the second guide block 34.

As shown in fig. 4, a second T-shaped buckle 35 is disposed on the core pulling slider 32, and the second T-shaped buckle 35 is used for being connected with the second driving device 31. As shown in fig. 6, the second T-shaped buckle 35 is disposed on the left end surface of the core pulling slider 32, and the second driving device 31 may be an oil cylinder or other device capable of realizing reciprocating linear motion. When the second driving device 31 adopts an oil cylinder, a T-shaped boss matched with the second T-shaped buckle 35 is arranged on a push rod of the oil cylinder, and the second T-shaped buckle 35 is connected with the T-shaped boss in a clamping mode. The second driving device 31 and the core-pulling sliding block 32 are connected through the T-shaped buckle, and the second driving device 31 is convenient to mount through the design of the T-shaped buckle.

An embodiment of the utility model provides an injection mold, including above-mentioned arbitrary mechanism of loosing core. The beneficial effects of the injection mold are the same as those of the core-pulling mechanism, and are not described again here.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (15)

1. The core pulling mechanism is characterized by comprising a first core pulling mechanism (2), wherein the first core pulling mechanism (2) comprises a first driving device (21), a sliding block (22) and a core pulling inclined top assembly (23), and the core pulling inclined top assembly (23) comprises a core pulling inclined top (231) and a spring (234); the first driving device (21) is connected with the sliding block (22), and the first driving device (21) is used for driving the sliding block (22) to do linear motion; the core-pulling inclined top (231) is connected with the sliding block (22) in a sliding mode along a first sliding direction, and the first sliding direction is arranged in an inclined mode relative to the moving direction of the sliding block (22); one end, close to the first driving device (21), of the core-pulling inclined top (231) is connected with the sliding block (22) through the spring (234), and when the first core-pulling mechanism (2) is in a die-closing state, the spring (234) is in a compression state.

2. The core pulling mechanism according to claim 1, wherein the slider (22) is provided with an inclined guide groove (222), the inclined guide groove (222) is arranged obliquely relative to the moving direction of the slider (22), the core pulling inclined top (231) is at least partially accommodated in the inclined guide groove (222), and the core pulling inclined top (231) is connected with the inclined guide groove (222) in a sliding manner.

3. The core pulling mechanism according to claim 1, wherein a limiting groove (233) is formed in the core pulling sloping roof (231), the limiting groove (233) is arranged along the first sliding direction, a limiting structure (221) is arranged on the sliding block (22), and the limiting structure (221) is slidably connected with the limiting groove (233).

4. The core pulling mechanism according to claim 1, wherein the core pulling lifter assembly (23) further comprises a lifter base (235), the lifter base (235) is mounted on the slider (22), and the spring (234) is connected with the lifter base (235) and the core pulling lifter (231), respectively.

5. The core pulling mechanism according to claim 1, wherein the core pulling sloping roof (231) is provided with a receiving groove (236), and the receiving groove (236) is used for receiving the spring (234).

6. Core pulling mechanism according to claim 1, characterized in that said first core pulling mechanism (2) further comprises a first guide block (24), said first guide block (24) being connected to the moving platen, said first guide block (24) being adapted to limit the rectilinear movement of said slide (22).

7. Core pulling mechanism according to claim 1, wherein said slider (22) is provided with a first T-shaped buckle (223), said first T-shaped buckle (223) being intended to be connected to said first driving means (21).

8. The core pulling mechanism according to claim 1, wherein the core pulling lifter assembly (23) is plural in number.

9. The core pulling mechanism according to claim 8, wherein adjacent ones of the core pulling domes (231) are arranged at an angle.

10. The core pulling mechanism according to any one of claims 1 to 9, further comprising a second core pulling mechanism (3), wherein the second core pulling mechanism (3) comprises a second driving device (31) and a core pulling slider (32), the second driving device (31) is connected with the core pulling slider (32), and the second driving device (31) is used for driving the core pulling slider (32) to make a linear motion.

11. The core pulling mechanism according to claim 10, wherein the second core pulling mechanism (3) further comprises a stop block (33), the stop block (33) is connected with the core pulling slider (32), and the stop block (33) is used for limiting the displacement of the core pulling lifter (231) in the moving direction of the slider (22).

12. The core pulling mechanism according to claim 11, wherein the core pulling lifter assembly (23) further comprises a lifter guide slider (232), the lifter guide slider (232) is mounted on the core pulling lifter (231), and the lifter guide slider (232) is in contact with the stopper (33) when the first core pulling mechanism (2) is in the mold clamping state.

13. Core pulling mechanism according to claim 10, characterized in that said second core pulling mechanism (3) further comprises a second guide block (34), said second guide block (34) being connected to the moving platen, said second guide block (34) being adapted to limit the linear movement of the core pulling slider (32).

14. Core pulling mechanism according to claim 10, wherein a second T-shaped buckle (35) is arranged on the core pulling slider (32), said second T-shaped buckle (35) being adapted to be connected to the second driving means (31).

15. An injection mould comprising a core-pulling mechanism as claimed in any one of claims 1 to 14.

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