A core pulling mechanism and injection mold

Abstract

The present invention provides a core pulling mechanism and an injection mold, and relates to the field of mold technology. The core pulling mechanism of the present invention includes a first core pulling mechanism, which includes a first driving device, a slider, and a core pulling inclined ejector assembly, and the core pulling inclined ejector assembly includes a core pulling inclined ejector and a spring; the first driving device is connected to the slider, and the first driving device is used to drive the slider to perform linear motion; the core pulling inclined ejector is slidably connected to the slider along a first sliding direction, and the first sliding direction is inclined relative to the movement direction of the slider; the core pulling inclined ejector is connected to the slider through a spring near one end of the first driving device, and when the first core pulling mechanism is in a mold closing state, the spring is in a compressed state. Therefore, through the cooperation of the slider, the spring and the core pulling inclined ejector, the spring is set to a compressed state when the mold is closed, so as to offset the displacement of the core pulling inclined ejector in the set direction during the mold opening process, so as to realize the conversion of the movement of the slider into the movement of the core pulling inclined ejector in the set core pulling direction, and the structure is simple and small in space.

Description

Technical Field

[0001] The invention relates to the technical field of molds, and in particular to a core pulling mechanism and an injection mold. Background Art

[0002] In existing injection molds, the core pulling of the product structure is usually carried out by relying on the cooperation of the movable mold plate and the fixed mold plate, and the core pulling sliders on both sides are driven by inclined guide pillars. Due to the setting of the core pulling mechanism of the movable mold and the fixed mold, the core pulling mechanism is relatively complicated and occupies a large space. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a core pulling mechanism which has a relatively simple structure and occupies a relatively small space.

[0004] To solve the above problems, the present invention provides a core pulling mechanism, including a first core pulling mechanism, the first core pulling mechanism including a first driving device, a slider, and a core pulling inclined ejector assembly, the core pulling inclined ejector assembly including a core pulling inclined ejector and a spring; the first driving device is connected to the slider, and the first driving device is used to drive the slider to perform linear motion; the core pulling inclined ejector is slidably connected to the slider along a first sliding direction, and the first sliding direction is inclined relative to the movement direction of the slider; the core pulling inclined ejector is connected to the slider through the spring at one end close to the first driving device, and when the first core pulling mechanism is in a mold closing state, the spring is in a compressed state.

[0005] Therefore, through the cooperation of the slider, the spring and the core-pulling inclined top, the spring is set to a compressed state when the mold is closed, thereby offsetting the displacement of the core-pulling inclined top in the set direction during the mold opening process, thereby realizing the conversion of the movement of the slider into the movement of the core-pulling inclined top in the set core-pulling direction, with a simple structure and small space occupation.

[0006] Optionally, an inclined guide groove is provided on the slider, the inclined guide groove is inclined relative to the movement direction of the slider, the core-pulling inclined top is at least partially accommodated in the inclined guide groove, and the core-pulling inclined top is slidably connected to the inclined guide groove.

[0007] Therefore, through the setting of the inclined guide groove and the action of the inclined guide groove and the core-pulling inclined top, the movement of the slider is converted into the core-pulling movement of the core-pulling inclined top.

[0008] Optionally, a limiting groove is provided on the core-pulling inclined top, the limiting groove is arranged along the first sliding direction, a limiting structure is provided on the sliding block, and the limiting structure is slidably connected to the limiting groove.

[0009] Thus, by setting the limiting groove and the limiting structure, the core-pulling inclined top can be limited in the limiting groove, and by limiting the limiting structure in the limiting groove, the distance of the core-pulling inclined top upward pulling the core can be limited. In addition, by the action of the limiting structure and the limiting groove, the spring is prevented from directly pulling the core-pulling inclined top to cause damage to the spring.

[0010] Optionally, the core-pulling inclined ejector assembly further includes an inclined ejector base, the inclined ejector base is mounted on the slider, and the spring is respectively connected to the inclined ejector base and the core-pulling inclined ejector.

[0011] In this way, the direct action of the slider against the core-pulling inclined top can be avoided to cause damage to the slider, thereby achieving protection of the slider.

[0012] Optionally, a receiving groove is provided on the core-pulling inclined top, and the receiving groove is used to receive the spring.

[0013] Therefore, the spring can be protected by the provision of the accommodating groove.

[0014] Optionally, the first core-pulling mechanism further includes a first guide block, the first guide block is connected to the movable template, and the first guide block is used to limit the slider from performing linear motion.

[0015] Therefore, by setting the first guide block, the movement of the slider is limited.

[0016] Optionally, a first T-shaped buckle is provided on the sliding block, and the first T-shaped buckle is used to connect with the first driving device.

[0017] Therefore, the connection between the first driving device and the slider is achieved through the T-shaped buckle, and the design of the T-shaped buckle facilitates the installation of the first driving device.

[0018] Optionally, there are multiple core-pulling inclined ejector assemblies.

[0019] Therefore, by providing a plurality of core-pulling inclined ejector assemblies, it is possible to simultaneously pull the cores of products with different structures, and the structure is simple.

[0020] Optionally, adjacent core-pulling inclined tops are arranged at an angle.

[0021] Therefore, it is possible to realize core pulling in different directions for products with different structures.

[0022] Optionally, it further includes a second core pulling mechanism, which includes a second driving device and a core pulling slider, the second driving device is connected to the core pulling slider, and the second driving device is used to drive the core pulling slider to perform linear motion.

[0023] Therefore, through the cooperation between the second core-pulling mechanism and the first core-pulling mechanism, core-pulling of products with different structures is achieved.

[0024] Optionally, the second core-pulling mechanism further includes a limit block, the limit block is connected to the core-pulling slider, and the limit block is used to limit the displacement of the core-pulling inclined top in the movement direction of the slider.

[0025] Therefore, by arranging the limit block on the core-pulling slider, the core-pulling guiding function of the core-pulling inclined ejector assembly is achieved.

[0026] Optionally, the first core pulling mechanism further comprises a slanted top guide slider, wherein the slanted top guide slider is mounted on the core pulling slanted top, and when the first core pulling mechanism is in a mold closing state, the slanted top guide slider contacts the limit block.

[0027] Therefore, by setting the inclined top guide sliding block, the core-pulling inclined top is prevented from directly interacting with the limit block, thereby achieving protection for the core-pulling inclined top.

[0028] Optionally, the second core-pulling mechanism further includes a second guide block, the second guide block is connected to the movable template, and the second guide block is used to limit the core-pulling slider from performing linear motion.

[0029] Therefore, by setting the second guide block, the movement of the core-pulling slider is limited.

[0030] Optionally, a second T-shaped buckle is provided on the core-pulling slider, and the second T-shaped buckle is used to connect with the second driving device.

[0031] Therefore, the connection between the second driving device and the core-pulling slider is achieved through the T-shaped buckle, and the design of the T-shaped buckle facilitates the installation of the second driving device.

[0032] The present invention also provides an injection mold, comprising any one of the core pulling mechanisms described above. The beneficial effects of the injection mold are the same as those of the core pulling mechanism, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the structure of a product according to an embodiment of the present invention;

[0034] Figure 2 Schematic diagram of a core pulling mechanism according to an embodiment of the present invention;

[0035] Figure 3 It is a structural schematic diagram of a first core-pulling mechanism according to an embodiment of the present invention;

[0036] Figure 4It is a structural schematic diagram of a second core-pulling mechanism according to an embodiment of the present invention;

[0037] Figure 5 An exploded view of a core-pulling inclined ejector assembly according to an embodiment of the present invention;

[0038] Figure 6 It is a front view of the core pulling mechanism during mold closing according to an embodiment of the present invention;

[0039] Figure 7 It is a front view of the core pulling mechanism during mold opening according to an embodiment of the present invention;

[0040] Figure 8 It is a schematic diagram of the cooperation between the limit block and the guide sliding block according to an embodiment of the present invention.

[0041] Description of reference numerals:

[0042] 1-product, 11-buckle, 2-first core-pulling mechanism, 21-first driving device, 22-slider, 221-limiting structure, 222-oblique guide groove, 223-first T-shaped buckle, 23-core-pulling inclined top assembly, 231-core-pulling inclined top, 232-oblique top guide slider, 233-limiting groove, 234-spring, 235-oblique top base, 236-accommodating groove, 24-first guide block, 25-support, 3-second core-pulling mechanism, 31-second driving device, 32-core-pulling slider, 33-limiting block, 34-second guide block, 35-second T-shaped buckle. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or a rotational connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0045] In addition, all directions or positional relationships mentioned in the text in the embodiments of the present invention are positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than implying or suggesting that the device or element referred to must have a specific orientation, and cannot be understood as a limitation of the present invention. An XY coordinate system is provided in the present invention, wherein the positive direction of the X-axis represents the right, the reverse direction of the X-axis represents the left, the positive direction of the Y-axis represents the top, and the reverse direction of the Y-axis represents the bottom, wherein "left", "right", "up" and "down" do not constitute a limitation on the specific structure, but are only based on the position in the drawings. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0046] An embodiment of the present invention provides a core pulling mechanism, such as Figure 2 and Figure 3 As shown, it includes a first core-pulling mechanism 2, which includes a first driving device 21, a slider 22, and a core-pulling inclined ejector assembly 23, and the core-pulling inclined ejector assembly 23 includes a core-pulling inclined ejector 231 and a spring 234; the first driving device 21 is connected to the slider 22, and the first driving device 21 is used to drive the slider 22 to perform linear motion; the core-pulling inclined ejector 231 is slidably connected to the slider 22 along a first sliding direction, and the first sliding direction is inclined relative to the movement direction of the slider 22; the core-pulling inclined ejector 231 is connected to the slider 22 at one end close to the first driving device 21 through the spring 234, and when the first core-pulling mechanism 2 is in a mold closing state, the spring 234 is in a compressed state.

[0047] It should be noted that the first sliding direction is only for the convenience of description in the following text. The first sliding direction refers to the direction in which the core-pulling inclined top 231 slides relative to the slider 22. The direction in which the core-pulling inclined top 231 slides along the slider 22 is different from the direction in which the slider 22 is driven by the first driving device 21 to move. In other words, the direction in which the core-pulling inclined top 231 slides along the slider 22 is set at a certain angle to the direction in which the slider 22 is driven by the first driving device 21 to move. The end of the core-pulling inclined top 231 close to the first driving device 21 can be directly connected to the slider 22 through the spring 234, and the end of the core-pulling inclined top 231 close to the first driving device 21 can also be connected to the slider 22 through the connection of the spring 234 with other structures. Here, the first driving device 21 is installed on the movable plate through the support 25. Of course, the first driving device 21 can also be installed on other supporting structures through the support 25.

[0048] Therefore, when the slider 22 makes a linear motion, the slider 22 can drive the core-pulling lift 231 to move. Figure 6As shown, a mold core is provided on the upper end face or the lower end face of the core-pulling lifter for core-pulling of the structure. When the mold is opened, the slider 22 moves in the positive direction of the X-axis. Since the core-pulling lifter 231 is tilted relative to the X-axis, the slider 22 applies a force in the X-axis direction and a force in the Y-axis direction to the core-pulling lifter 231. Since the spring 234 is in a compressed state, the expansion and contraction direction of the spring 234 is the same as the first sliding direction. The spring 234 pushes the core-pulling lifter 231 to move in the opposite direction of the X-axis, thereby offsetting the force of the core-pulling lifter 231 on the X-axis. The core-pulling lifter 231 moves along the Y-axis direction to achieve core pulling in the Y-axis direction. Here, Figure 6 Taking the top core-pulling lift 231 as an example, when the mold is opened, the slider 22 moves in the positive direction of the X-axis, driving the core-pulling lift 231 to move to the upper right, and the spring 234 pushes the core-pulling lift 231 to move to the upper left, thereby offsetting the movement of the core-pulling lift 231 on the X-axis, and the core-pulling lift 231 moves in the positive direction of the Y-axis to achieve core pulling. When the slider 22 continues to move in the positive direction of the X-axis, the spring 234 returns to its initial state. At this time, since the core-pulling lift 231 is connected to the slider 22 through the spring 234, the core-pulling lift 231 moves to the right along with the slider 22.

[0049] like Figure 6 As shown, the spring 234 is inclined relative to the first core pulling direction of the core pulling lift 231, and the first core pulling direction is set along the positive direction of the Y axis. When the slider 22 moves to the right, the spring 234 can also provide power for the core pulling of the core pulling lift 231.

[0050] The advantage of such a setting is that, through the cooperation of the slider 22, the spring 234 and the core-pulling inclined top 231, the spring 234 is set to a compressed state when the mold is closed, thereby offsetting the displacement of the core-pulling inclined top 231 in the set direction during the mold opening process, thereby realizing the conversion of the movement of the slider 22 into the movement of the core-pulling inclined top 231 in the set core-pulling direction, with a simple structure and small space occupation.

[0051] like Figure 6 and Figure 7 As shown, the slider 22 is provided with an inclined guide groove 222 , and the inclined guide groove 222 is inclined relative to the movement 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 to the inclined guide groove 222 .

[0052] It should be noted that the inclined guide groove 222 is arranged at a certain angle to the movement direction of the slider 22. Figure 6As shown, the opening of the inclined guide groove 222 is perpendicular to the slider 22, and the core-pulling inclined top 231 can be completely accommodated in the inclined guide groove 222, or the core-pulling inclined top 231 can be partially accommodated in the inclined guide groove 222. Figure 6 Taking the top core-pulling lift 231 as an example, during the mold opening process, the slider 22 moves to the right, and the side wall of the inclined guide groove 222 applies a thrust to the core-pulling lift 231. Since the spring 234 is in a compressed state, the spring 234 applies an upward left thrust to the core-pulling lift 231, thereby offsetting the movement of the core-pulling lift 231 on the X-axis. The core-pulling lift 231 moves positively toward the Y-axis to achieve core pulling.

[0053] The advantage of such a configuration is that, through the configuration of the inclined guide groove 222 and the action of the inclined guide groove 222 and the core-pulling inclined top 231 , the movement of the slider 22 is converted into the core-pulling movement of the core-pulling inclined top 231 .

[0054] like Figure 5 As shown, a limiting groove 233 is provided on the core-pulling inclined top 231 , and the limiting groove 233 is arranged along the first sliding direction. A limiting structure 221 is provided on the slider 22 , and the limiting structure 221 is slidably connected to the limiting groove 233 .

[0055] It should be noted that the limiting groove 233 is in the same direction as the inclined guide groove 222, the limiting structure 221 can be a limiting screw or a limiting block, the limiting structure 221 is inserted into the limiting groove 233, and the limiting structure 221 can 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 the one hand, the core-pulling inclined top 231 is limited in the direction perpendicular to the slider 22, that is, the core-pulling inclined top 231 is limited in the direction perpendicular to the X-axis / Y-axis; on the other hand, Figure 6 As shown, when the mold is closed, the limiting structure 221 is located on the left side of the limiting groove 233, as shown in FIG. Figure 7 As shown, when the slider 22 moves to the right, it drives the limiting structure 221 to move to the right. When the limiting structure 221 moves to the rightmost end of the limiting groove 233, the limiting structure 221 acts on the limiting groove 233. When the slider 22 continues to move to the right, the limiting structure 221 acts on the right end of the limiting groove 233, pulling the core-pulling inclined top 231 to move to the right.

[0056] The advantage of such a configuration is that, by configuring the limiting groove 233 and the limiting structure 221, the core-pulling inclined top 231 can be limited in the limiting groove 233, and by limiting the limiting structure 221 in the limiting groove 233, the distance of the core-pulling inclined top 231 pulling upward can be limited. In addition, by the action of the limiting structure 221 and the limiting groove 233, the spring 234 is prevented from directly pulling the core-pulling inclined top 231 and causing damage to the spring 234.

[0057] like Figure 5 As shown, the core-pulling inclined ejector assembly 23 also includes an inclined ejector base 235, and the inclined ejector base 235 is installed on the slider 22, and the spring 234 is connected to the inclined ejector base 235 and the core-pulling inclined ejector 231, respectively. In other words, the inclined ejector base 235 is installed on the slider 22, and the core-pulling inclined ejector 231 is connected to the inclined ejector base 235 through the spring 234 to realize the connection between the core-pulling inclined ejector 231 and the slider 22. In this way, the slider 22 is prevented from being damaged by the direct action of the slider 22 against the core-pulling inclined ejector 231, and the slider 22 is protected. It should be noted that the end surface of the inclined ejector base 235 close to the core-pulling inclined ejector 231 is perpendicular to the first sliding direction. The end surface of the inclined top base 235 close to the core-pulling inclined top 231 is connected to the spring 234. Since the spring 234 is extended and retracted along the first sliding direction, the end surface of the inclined top base 235 close to the core-pulling inclined top 231 is set to be perpendicular to the first sliding direction to ensure the stability of the spring extension and retraction.

[0058] like Figure 6 As shown, the core-pulling inclined top 231 is provided with a receiving groove 236, and the receiving groove 236 is used to receive the spring 234. Figure 6 As shown, when the mold is closed, the spring 234 is completely accommodated in the accommodating groove 236. Figure 7 As shown, when the mold is opened, the slider 22 pulls the spring 234 to move, so that the spring 234 is exposed in the receiving groove 236. Here, the receiving groove 236 is arranged on the end surface of the core-pulling inclined top 231 close to the first driving device 21, and the spring 234 can be protected by the arrangement of the receiving groove 236.

[0059] like Figure 6As shown, the first core-pulling mechanism 2 also includes a first guide block 24, which is connected to the movable platen and is used to limit the linear motion of the slider 22. Here, there are two first guide blocks 24, which are respectively located at the upper and lower sides of the slider 22, and 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, by setting the first guide blocks 24, the movement of the slider 22 is limited.

[0060] like Figure 3 As shown, the slider 22 is provided with a first T-shaped buckle 223, and the first T-shaped buckle 223 is used to connect with the first driving device 21. Figure 6 As shown, the first T-shaped buckle 223 is arranged on the right end face of the slider 22, and the first driving device 21 can be a cylinder or other devices that can realize reciprocating linear motion. When the first driving device 21 is a cylinder, a T-shaped boss that matches the first T-shaped buckle 223 is arranged on the push rod of the cylinder, and the first T-shaped buckle 223 is engaged with the T-shaped boss. The connection between the first driving device 21 and the slider 22 is realized by the T-shaped buckle, and the installation of the first driving device 21 is facilitated by the design of the T-shaped buckle.

[0061] like Figure 1 As shown, a plurality of buckles 11 are usually provided on the same product 1. The existing core-pulling mechanism which is formed by the cooperation of a movable mold and a fixed mold has a complex structure. When the plurality of buckles 11 are formed simultaneously, interference is easily caused between the structures.

[0062] like Figure 2 As shown, there are multiple core-pulling inclined ejector assemblies 23. Figure 6 As shown, the slider 22 is provided with a plurality of inclined guide grooves 222, each of which is provided with a core-pulling inclined top 231, and two adjacent inclined guide grooves 222 are arranged at a set angle. Here, the two adjacent inclined guide grooves 222 are arranged at an acute angle, so that Figure 6 Taking the upper two inclined guide grooves 222 as an example, the uppermost core-pulling inclined ejector assembly 23 is a first core-pulling inclined ejector assembly, and the first core-pulling inclined ejector assembly includes a first core-pulling inclined ejector and a first spring. The first core-pulling inclined ejector is at least partially accommodated in the first inclined guide groove ( Figure 6 The second core-pulling inclined ejector assembly 23 from top to bottom is a second core-pulling inclined ejector assembly, and the second core-pulling inclined ejector assembly includes a second core-pulling inclined ejector and a second spring, and the second core-pulling inclined ejector is at least partially accommodated in the second inclined guide groove ( Figure 6In the second inclined guide groove from top to bottom), when the slider moves to the right, the first inclined guide groove applies a force to the upper right on the first core-pulling inclined top, and the first spring applies a force to the upper left on the first core-pulling inclined top, and the first core-pulling inclined top performs core pulling upward; at the same time, the second inclined guide groove applies a force to the lower right on the second core-pulling inclined top, and the second spring applies a force to the lower left on the second core-pulling inclined top, and the second core-pulling inclined top performs core pulling downward. By setting a plurality of the core-pulling inclined top assemblies 23, it is possible to pull the cores of different product structures at the same time, and the structure is simple. In addition, the adjacent core-pulling inclined tops 231 are arranged at an angle, so that it is possible to pull the cores of different product structures in different directions.

[0063] Since the product is often equipped with a variety of different structures, it is necessary to form them separately. Figure 2 As shown, the core pulling mechanism also includes a second core pulling mechanism 3, which 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 used to drive the core pulling slider 32 to perform linear motion.

[0064] like Figure 6 As shown, the second core pulling mechanism 3 drives the core pulling slider 32 to move leftward to realize core pulling in the second core pulling direction, and the second core pulling direction is the same as the X-axis direction. The second driving device 31 can be a cylinder or other device that can realize reciprocating linear motion. Therefore, through the cooperation of the second core pulling mechanism 3 and the first core pulling mechanism 2, core pulling of products with different structures is realized.

[0065] like Figure 6 As shown, the second core pulling mechanism 3 further includes a limit block 33 , which is connected to the core pulling slider 32 , and is used to limit the displacement of the core pulling lift 231 in the moving direction of the slider 22 .

[0066] 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 assembly 23 contacts the limit block 33. When the core is pulled, the first core-pulling mechanism 2 first drives the slider 22 to move rightward. The core-pulling inclined top 231 maintains contact with the limit block 33 under the action of the spring 234. At this time, the core-pulling inclined top 231 moves upward along the limit block 33 to pull the core of the first feature of the product. When the limiting structure 221 moves to the rightmost end of the limiting groove 233, the core-pulling inclined top 231 stops moving upward. At this time, the second core-pulling mechanism 3 starts to pull the core, and the second driving device 31 drives the core-pulling slider 32 to move leftward. Since the limit block 33 is set on the core-pulling slider 32, the limit block 33 moves leftward to release the limit on the core-pulling inclined top assembly 23, the core-pulling slider 32 pulls the core to the left, and the slider 22 drives the core-pulling inclined top assembly 23 to move rightward to open the mold. Here, a sensor may be provided on the limit block 33 to sense the core-pulling inclined ejector assembly 23, and when the core-pulling inclined ejector assembly 23 is away from the limit block 33, the second core-pulling mechanism 3 is controlled to move. By providing the limit block 33 on the core-pulling slider 32, the core-pulling guiding function of the core-pulling inclined ejector assembly 23 is achieved.

[0067] like Figure 5 As shown, the core-pulling inclined top assembly 23 also includes an inclined top guide slider 232, and the inclined top guide slider 232 is installed on the core-pulling inclined top 231. Figure 8 As shown, when the first core-pulling mechanism 2 is in the mold-closing state, the inclined top guide slider 232 contacts the limit block 33. Here, the inclined top guide slider 232 can be installed on the core-pulling inclined top 231 by means of a snap connection or a threaded connection, and the end surface of the inclined top guide slider 232 close to the limit block 33 is in contact with the end surface of the limit block 33 close to the inclined top guide slider 232. When the first core-pulling mechanism 2 performs core pulling, the inclined top guide slider 232 moves upward relative to the limit block 33. By setting the inclined top guide slider 232, the core-pulling inclined top 231 is prevented from directly interacting with the limit block 33, thereby protecting the core-pulling inclined top 231.

[0068] like Figure 4As shown, the second core-pulling mechanism 3 also includes a second guide block 34, which is connected to the movable platen, and is used to limit the linear motion of the core-pulling slider 32. Here, there are two second guide blocks 34, which are respectively located on the upper and lower sides of the core-pulling slider 32, and the second guide block 34 is parallel to the sliding direction of the core-pulling slider 32, and the core-pulling slider 32 moves linearly along the second guide block 34. Therefore, by setting the second guide block 34, the movement of the core-pulling slider 32 is limited.

[0069] like Figure 4 As shown, the core-pulling slider 32 is provided with a second T-shaped buckle 35, and the second T-shaped buckle 35 is used to connect with the second driving device 31. Figure 6 As shown, the second T-shaped buckle 35 is arranged on the left end face of the core-pulling slider 32, and the second driving device 31 can be a cylinder or other devices that can realize reciprocating linear motion. When the second driving device 31 is a cylinder, a T-shaped boss that matches the second T-shaped buckle 35 is arranged on the push rod of the cylinder, and the second T-shaped buckle 35 is engaged with the T-shaped boss. The connection between the second driving device 31 and the core-pulling slider 32 is realized by the T-shaped buckle, and the installation of the second driving device 31 is facilitated by the design of the T-shaped buckle.

[0070] An embodiment of the present invention provides an injection mold, comprising any one of the core pulling mechanisms described above. The beneficial effects of the injection mold are the same as those of the core pulling mechanism, which will not be described in detail here.

[0071] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A core pulling mechanism, characterized in that: The invention comprises a first core-pulling mechanism (2), wherein the first core-pulling mechanism (2) comprises a first driving device (21), a slider (22), and a core-pulling inclined ejector assembly (23), wherein the core-pulling inclined ejector assembly (23) comprises a core-pulling inclined ejector (231) and a spring (234); the first driving device (21) is connected to the slider (22), and the first driving device (21) is used to drive the slider (22) to perform linear motion; the core-pulling inclined ejector (231) is slidably connected to the slider (22) along a first sliding direction, and the first sliding direction is inclined relative to the movement direction of the slider (22); the core-pulling inclined ejector (231) is connected to the slider (22) at one end close to the first driving device (21) through the spring (234), and when the first core-pulling mechanism (2) is in a mold closing state, the spring (234) is in a compressed state; The slider (22) is provided with an inclined guide groove (222), and the inclined guide groove (222) is inclined relative to the movement 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 to the inclined guide groove (222); a limiting groove (233) is provided on the core-pulling inclined top (231), and the limiting groove (233) is arranged along the first sliding direction; a limiting structure (221) is provided on the slider (22), and the limiting structure (221) is slidably connected to the limiting groove (233); the core-pulling inclined top assembly (23) also includes an inclined top base (235), and the inclined top base (235) is installed on the slider (22); the spring (234) is respectively connected to the inclined top base (235) and the core-pulling inclined top (231).

2. The core pulling mechanism according to claim 1, characterized in that: The core-pulling inclined top (231) is provided with a receiving groove (236), and the receiving groove (236) is used to receive the spring (234).

3. The core pulling mechanism according to claim 1, characterized in that: The first core-pulling mechanism (2) further comprises a first guide block (24), the first guide block (24) being connected to the movable die plate, and the first guide block (24) being used to limit the linear motion of the slider (22).

4. The core pulling mechanism according to claim 1, characterized in that: The sliding block (22) is provided with a first T-shaped buckle (223), and the first T-shaped buckle (223) is used to be connected to the first driving device (21).

5. The core pulling mechanism according to claim 1, characterized in that: There are a plurality of core-pulling inclined ejector assemblies (23).

6. The core pulling mechanism according to claim 5, characterized in that: The adjacent core-pulling inclined tops (231) are arranged at an angle.

7. The core pulling mechanism according to any one of claims 1 to 6, characterized in that: The invention also comprises 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), wherein the second driving device (31) is connected to the core-pulling slider (32), and the second driving device (31) is used to drive the core-pulling slider (32) to perform linear motion.

8. The core pulling mechanism according to claim 7, characterized in that: The second core pulling mechanism (3) further comprises a limit block (33), wherein the limit block (33) is connected to the core pulling slider (32), and the limit block (33) is used to limit the displacement of the core pulling inclined top (231) in the moving direction of the slider (22).

9. The core pulling mechanism according to claim 8, characterized in that: The core-pulling inclined top assembly (23) also includes an inclined top guide slider (232), which is installed on the core-pulling inclined top (231). When the first core-pulling mechanism (2) is in a mold closing state, the inclined top guide slider (232) contacts the limit block (33).

10. The core pulling mechanism according to claim 7, characterized in that: The second core-pulling mechanism (3) further comprises a second guide block (34), the second guide block (34) being connected to the movable die plate, and the second guide block (34) being used to limit the core-pulling slider (32) from performing linear motion.

11. The core pulling mechanism according to claim 7, characterized in that: The core-pulling slider (32) is provided with a second T-shaped buckle (35), and the second T-shaped buckle (35) is used to connect with the second driving device (31).

12. An injection mold, characterized in that: It comprises a core pulling mechanism as described in any one of claims 1 to 11.

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