Demolding assembly and mold with same

Abstract

The utility model provides a demolding assembly. The demolding assembly comprises at least one demolding piece, a limiting arm, a stop piece and a return driving piece. The demolding piece forms a forming thread capable of forming a product thread and is rotatably arranged on the mold main body. The limiting arm is rotatably arranged on the mold main body; the stopping piece is used for stopping on one side of the limiting arm. And when the demolding piece rotates in the first direction to be separated from the product, the limiting arm is driven by the demolding piece to rotate in the direction away from the stop piece so as to avoid a space for the demolding piece to continue to rotate. And when the demolding piece rotates and resets in the second direction opposite to the first direction so as to enable the starting end of the forming thread to reset to the initial forming position, the stopped limiting arm limits rotation and resetting of the demolding piece. The return driving piece is connected with the limiting arm and used for providing driving force for enabling the limiting arm to return to the position stopped by the stopping piece from the position away from the stopping piece. The rotating process when the demolding part is separated from the product is not affected, and it is guaranteed that the starting end position of the formed thread is unique after the demolding part rotates and resets.

Description

Technical Field

[0001] The present disclosure relates to the field of molding dies, and in particular to a demoulding component and a mold having the demoulding component. Background Art

[0002] At present, when a product is formed by a mold, a demolding piece with a molded thread is often used to form the thread of the product. After the product is formed, the demolding piece is driven to rotate so that the demolding piece rotates and rotates away from the product, thereby achieving the effect of demolding the product. However, after the product is demolded, when the demolding piece rotates and resets to prepare the thread of the next product, the starting end of the molded thread on the demolding piece is often difficult to accurately return to the initial molding position. After the rotation and reset, the position of the starting end of the molded thread will deviate from the initial molding position, resulting in the position of the starting teeth of the threads on multiple products that have been molded multiple times being not unique, affecting the consistency of the position of the starting teeth of the threads on multiple products. If only a limiter fixed on the mold is used to limit the demolding piece that is rotated to a predetermined position so that the starting end of the molded thread on the demolding piece stays in the initial position, then the rotation process of the demolding piece when it is separated from the product will also be restricted, resulting in the demolding piece being unable to smoothly separate from the product. Summary of the invention

[0003] One advantage of the present disclosure is that it provides a demoulding assembly and a mold having the demoulding assembly, which does not affect the rotation process of the demoulding member when it is separated from the product, and can ensure the uniqueness of the starting end position of the molding thread after the demoulding member is rotated and reset.

[0004] In order to achieve at least one of the above advantages of the present disclosure, the present disclosure provides a demolding assembly, including: at least one demolding member, which forms a molding thread capable of molding a product thread, and is rotatably arranged on a mold body; a limiting arm, which is rotatably arranged on the mold body; a stop member, which is stopped on one side of the limiting arm; and when the demolding member rotates along a first direction to disengage from the product, the limiting arm is driven by the demolding member to rotate in a direction away from the stop member to avoid space for the demolding member to continue to rotate; when the demolding member rotates and resets along a second direction opposite to the first direction to reset the starting end of the molding thread to the initial molding position, the stopped limiting arm limits the rotational reset of the demolding member; a return drive member, which is connected to the limiting arm, and is used to provide a driving force to restore the limiting arm from a position away from the stop member to a position stopped by the stop member.

[0005] According to some embodiments of the present disclosure, the demolding member forms a protruding portion protruding from its outer peripheral wall, and the protruding portion cooperates with the demolding member to form a limiting notch that cooperates with the limiting arm during rotational resetting.

[0006] According to some embodiments of the present disclosure, it further includes: a vertical rotating shaft, which is provided on the mold body and on which the limiting arm is rotatably mounted, so as to form an anti-slip portion located above the limiting arm and protruding from its outer peripheral wall.

[0007] According to some embodiments of the present disclosure, the return drive member includes: an elastic member, which is respectively connected to the mold body and the limiting arm.

[0008] According to some embodiments of the present disclosure, the restoring elastic member includes: a tension spring, which is respectively connected to the mold body and the limiting arm.

[0009] According to some embodiments of the present disclosure, there are multiple demoulding members, and each demoulding member is provided with a first gear;

[0010] The demoulding assembly further includes a gear transmission member, which is meshed with the first gears.

[0011] According to some embodiments of the present disclosure, the gear transmission member includes: a second gear, a plurality of the first gears are arranged at intervals on the outer peripheral side of the second gear and mesh with the second gear.

[0012] According to some embodiments of the present disclosure, the tooth transmission member includes: an annular toothed belt, and the plurality of first gears are sleeved inside the annular toothed belt and meshed with the annular toothed belt.

[0013] According to some embodiments of the present disclosure, the molded thread is formed on the top end of the demolding piece.

[0014] The present disclosure also provides a mold, comprising the demoulding assembly and a mold body as described above, wherein the portion of the demoulding member provided with the molding thread is rotatably disposed in the mold body and cooperates with the mold body to form a molding cavity capable of molding a product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the demoulding component of an embodiment of the present disclosure at an angle.

[0016] Figure 2 It is a schematic structural diagram of the demoulding component of an embodiment of the present disclosure at another angle.

[0017] Figure 3 It is a cross-sectional view of the limit arm of the embodiment of the present disclosure when it is installed.

[0018] Figure 4 is a cross-sectional view of the stopper of the embodiment of the present disclosure when installed.

[0019] 10. demoulding part; 11. forming thread; 111. starting end; 12. protruding part; 121. arc-shaped surface; 122. limiting notch; 13. first gear;

[0020] 20. Limiting arm;

[0021] 30. Stopper;

[0022] 40. Return drive member;

[0023] 50. Gear transmission parts;

[0024] 81. vertical rotating shaft; 811. anti-dropping portion; 82. first screw; 83. second screw; 84. fixing column;

[0025] 900. Products. DETAILED DESCRIPTION

[0026] The following description is used to disclose the present disclosure so that those skilled in the art can implement the present disclosure. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations. The basic principles of the present disclosure defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present disclosure.

[0027] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0028] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0029] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0030] In the related art, a mold includes a mold body and a demolding piece. The mold body includes an upper mold and a lower mold. The upper mold and the lower mold are arranged opposite to each other. The demolding piece is provided with a molding thread, and the demolding piece is rotatably arranged on the lower mold or the upper mold, and the portion of the demolding piece provided with the molding thread is located between the upper mold and the lower mold, and the portion cooperates with the upper mold and the lower mold to form a molding cavity for molding a product. Thus, after the product is molded in the molding cavity, a thread that matches the molding thread will be formed on the product. And before the demolding piece with the molding thread is rotated and disengaged from the product, the starting end of the molding thread on the mold piece is in an initial molding position on the mold body, so that the starting tooth of the thread on the product can be located at a predetermined position of the product.

[0031] After the demolding part with the formed thread is driven by a driving part such as a driving motor to rotate and separate from the product, when the demolding part is driven to rotate and reset again, the position of the starting end of the formed thread on the demolding part after reset will deviate from the initial forming position, resulting in the position of the starting tooth of the thread on the next molded product being different from that of the previously molded product when the demolding part is used to mold the product thread again, affecting the uniqueness of the position of the starting tooth of the thread on multiple products.

[0032] In view of this, the embodiment of the present disclosure provides a demolding assembly, which can ensure that the position of the starting end of the molded thread on the demolding part after resetting is consistent with the initial molding position, thereby ensuring the uniqueness of the starting tooth position of the thread on multiple products 9.

[0033] Figure 1 It is a schematic structural diagram of the demoulding component of an embodiment of the present disclosure at an angle. Figure 2 Schematic diagram of the structure of the demoulding assembly of the embodiment of the present disclosure at another angle. Figure 1 and Figure 2 The demoulding assembly includes at least one demoulding member 10, a limiting arm 20, a stop member 30 and a return driving member 40.

[0034] As mentioned above, the demoulding member 10 forms a molding thread 11 capable of molding a thread of the product 900. The demoulding member 10 is rotatably arranged on the mold body.

[0035] The limiting arm 20 is rotatably arranged on the mold body. Taking the demoulding member 10 being arranged on the lower mold as an example, the limiting arm 20 is also correspondingly arranged on the lower mold.

[0036] Figure 3 2 is a cross-sectional view of the limit arm 20 of the embodiment of the present disclosure when it is installed. Figure 3The mold body is provided with a vertical shaft 81, one end of the limit arm 20 is rotatably sleeved outside the vertical shaft 81, and the other end is a free end, so that the limit arm 20 can rotate around the vertical shaft 81 provided on the mold body. The vertical shaft 81 is detachably fixed to the mold body by a first screw 82 that passes through the vertical shaft 81 and is threadedly fastened to the mold body.

[0037] Optionally, the vertical rotating shaft 81 forms an anti-slip portion 811 protruding from its outer peripheral wall and located above the limit arm 20. In this way, during the rotation of the limit arm 20 around the vertical rotating shaft 81, the anti-slip portion 811 can prevent the limit arm 20 from escaping from the vertical rotating shaft 81, thereby ensuring the installation stability of the limit arm 20.

[0038] The stopper 30 is used to stop at one side of the limit arm 20. For example, the stopper 30 is cylindrical and detachably arranged at one side of the limit arm 20, and is used to stop at the limit arm 20.

[0039] Figure 4 FIG. 3 is a cross-sectional view of the stopper 30 of the embodiment of the present disclosure when it is installed. Figure 3 The stopper 30 is detachably fixed to the mold body by a second screw 83 that passes through the stopper 30 and is threadedly fastened to the mold body, and is located on one side of the limit arm 20, so as to stop the limit arm 20 when the limit arm 20 rotates toward the stopper 30 and abuts against the stopper 30.

[0040] When the demoulding member 10 is moved along the first direction (i.e. Figure 1 or Figure 2 When the mold release member 10 rotates in the counterclockwise direction to disengage from the product 900, the limiting arm 20 is driven by the mold release member 10 to rotate in a direction away from the stop member 30 to avoid leaving space for the mold release member 10 to continue rotating.

[0041] Taking the demoulding member 10 provided in the lower mold as an example, the product 900 is formed between the upper mold and the lower mold, and when the upper mold and the lower mold are opened, the product 900 is positioned and connected to the lower mold, so that when the demoulding member 10 is rotated in the first direction, the demoulding member 10 can rotate and separate from the positioned product 900. Of course, when the upper mold and the lower mold are opened, the product 900 can also be restricted from rotating and connected to the lower mold in a vertically movable manner, so that when the demoulding member 10 is rotated in the first direction, the product 900 can move upward and separate from the demoulding member 10, thereby achieving the purpose of separating the demoulding member 10 and the product 900 from each other. During the process that the demolding member 10 rotates along the first direction to disengage from the product 900, when the limiting arm 20 abuts against the demolding member 10, the limiting arm 20 will be pushed away by the demolding member 10 and rotate in the direction away from the stop member 30, thereby avoiding the demolding member 10. Therefore, the limiting arm 20 will not restrict the rotation of the demolding member 10 along the first direction. The demolding member 10 can rotate any number of circles along the first direction to disengage from the product 900, thereby achieving the purpose of demolding the product 900.

[0042] Optionally, the molding thread 11 is formed at the top of the demoulding member 10. Since the thread of the product 900 cooperates with the molding thread 11, the product 900 is also formed at the top of the demoulding member 10, so that when the demoulding member 10 rotates in the first direction, the product 900 and the demoulding member 10 can be quickly separated from each other.

[0043] The return drive member 40 is connected to the limit arm 20, and is used to provide a driving force to make the limit arm 20 return from the position away from the stopper 30 to the position stopped by the stopper 30. Therefore, each time the limit arm 20 deviates from and leaves the stopper 30, the return drive member 40 can drive the limit arm 20 to reset, so that the limit arm 20 returns to the position stopped by the stopper 30.

[0044] Optionally, the return driving member 40 includes an elastic member. The elastic member is respectively connected to the mold body and the limit arm 20. Each time the limit arm 20 leaves the stopper 30, the elastic member is elastically deformed and forms an elastic restoring force, so that when the pushing force of the demolding member 10 on the limit arm 20 disappears, the limit arm 20 will be driven by the elastic restoring force to return to the position stopped by the stopper 30.

[0045] For example, the elastic member includes a tension spring. The tension spring is connected between the fixed column 84 on the mold body and the limit arm 20. Therefore, each time the limit arm 20 leaves the stopper 30, the tension spring will be stretched. Therefore, when the pushing force of the demolding member 10 on the limit arm 20 disappears, the limit arm 20 will rotate toward the direction close to the stopper 30 under the pulling of the tension spring until the limit arm 20 abuts against the stopper 30.

[0046] When the demoulding member 10 is moved in a second direction (i.e. Figure 1 or Figure 2 When the molded thread 11 is rotated and reset in the clockwise direction (in the middle) to return the starting end 111 of the molding thread 11 to the initial molding position, the stopped limiting arm 20 limits the rotational reset of the demolding member 10.

[0047] Therefore, after the product 900 and the demolding member 10 are separated from each other, during the process of the demolding member 10 rotating and resetting in the opposite direction to the previous direction, i.e., the second direction, when the starting end 111 of the molding thread 11 of the demolding member 10 rotates to the initial molding position, the limiting arm 20 stopped by the stop member 30 can limit the demolding member 10, so that the starting end 111 of the molding thread 11 of the demolding member 10 stays in the initial molding position, so that when it is used to prepare the next product 900, the starting tooth position of the thread of the next product 900 can be kept consistent with the starting tooth position of the thread of the previous product 900, thereby ensuring the uniqueness of the starting tooth position of the thread on multiple products 900.

[0048] Optionally, the demoulding member 10 forms a protruding portion 12 protruding from its outer peripheral wall, and the protruding portion 12 cooperates with the demoulding member 10 to form a limiting notch 1201 that cooperates with the limiting arm 20 when rotating and resetting. For example, a cam is fixedly arranged on the outside of the demoulding member 10, and the limiting notch 1201 is formed on the cam. Therefore, when the limiting arm 20 is stopped by the stopper 30, one end of the limiting arm 20 is accommodated in the limiting notch 1201, so that the limiting arm 20 can limit the cam and the demoulding member 10 fixedly connected to the cam, thereby improving the limiting firmness of the limiting arm 20.

[0049] Optionally, there are a plurality of demoulding members 10, and each demoulding member 10 is provided with a first gear 13. The demoulding assembly further comprises a gear transmission member 50. The gear transmission member 50 is meshed with the plurality of first gears 13.

[0050] Therefore, when one of the demolding parts 10 is driven to rotate along the first direction to separate from the product 900, the first gear 13 on the demolding part 10 will drive the tooth transmission part 50 to rotate, and the rotation of the tooth transmission part 50 will drive other first gears 13 to rotate, thereby allowing other first gears 13 to drive other demolding parts 10 to rotate and separate from other products 900, thereby allowing multiple demolding parts 10 to rotate accordingly and separate from multiple products 900.

[0051] Therefore, when one of the demolding parts 10 is limited and the first gear 13 on the demolding part 10 is difficult to continue to rotate and reset, due to the tooth meshing and locking effect of the tooth transmission part 50 and the multiple first gears 13, the tooth transmission part 50 and the other first gears 13 are also difficult to continue to rotate, so that the other demolding parts 10 fixedly connected to the other first gears 13 are also limited, so that the starting ends 111 of the molding threads 11 of the other demolding parts 10 can also stay in the initial molding position after rotating and resetting to the initial molding position. Therefore, the demolding assembly of the embodiment of the present disclosure can ensure that the starting ends 111 of the multiple molding threads 11 on the multiple demolding parts 10 all stay in the corresponding initial molding positions, thereby ensuring the consistency of the starting tooth positions of the multiple products 900 ejected from the multiple demolding parts 10.

[0052] In some examples, the gear transmission member 50 includes a second gear. A plurality of the first gears 13 are arranged at intervals on the outer circumference of the second gear and mesh with the second gear.

[0053] Therefore, when one of the demolding parts 10 is limited and the first gear 13 on the demolding part 10 is difficult to continue to rotate and reset, due to the tooth meshing and locking effect of the second gear and multiple first gears 13, the second gear and other first gears 13 are also difficult to continue to rotate, so that the other demolding parts 10 fixedly connected to other first gears 13 are also limited, and then the starting ends 111 of the molding threads 11 of other demolding parts 10 can also be reset and stay in the initial molding position.

[0054] In other examples, the tooth transmission member 50 includes an annular toothed belt. A plurality of the first gears 13 are sleeved inside the annular toothed belt and meshed with the annular toothed belt. Thus, when one of the demolding members 10 is limited and the first gear 13 on the demolding member 10 is difficult to continue rotating and resetting, due to the meshing and locking effect of the annular toothed belt and the teeth of the plurality of the first gears 13, the annular toothed belt and the other first gears 13 are also difficult to continue rotating, so that the other demolding members 10 fixedly connected to the other first gears 13 are also limited, and then the starting ends 111 of the molding threads 11 of the other demolding members 10 can also be reset and stay in the initial molding position.

[0055] The present disclosure also provides a mold, the mold comprising the demoulding assembly as described above and the mold body. The mold body comprises an upper mold and a lower mold arranged opposite to each other. The demoulding member 10 is rotatably arranged on the upper mold or the lower mold, and the part of the demoulding member 10 provided with the molding thread 11 is located between the upper mold and the lower mold, and cooperates with the upper mold and the lower mold to form a molding cavity for molding the product 900.

[0056] In this way, after the mold uses the molding cavity to mold the product 900, a thread that matches the molding thread 11 will be formed on the molded product 900. At the same time, according to the above analysis, since the starting end 111 of the molding thread 11 of the demolding member 10 can return to the initial molding position after the demolding member 10 is rotated and reset, when the mold is divided into multiple times to mold multiple products 900, the positions of the multiple thread starting teeth on the multiple products 900 are consistent, thereby ensuring the uniqueness of the positions of the multiple thread starting teeth on the multiple products 900.

[0057] It should be understood by those skilled in the art that the embodiments of the present disclosure described above and shown in the accompanying drawings are only examples and do not limit the present disclosure. The advantages of the present disclosure have been fully and effectively realized. The functions and structural principles of the present disclosure have been demonstrated and explained in the embodiments, and the embodiments of the present disclosure may be deformed or modified in any way without departing from the principles.

Claims

1. A demoulding component, characterized in that: include: At least one demoulding member, which forms a molding thread capable of molding a product thread and is rotatably disposed on the mold body; A limiting arm, rotatably arranged on the mold body; A stopper is provided to stop at one side of the limit arm; and when the demoulding member rotates in a first direction to disengage from the product, the limit arm is driven by the demoulding member to rotate in a direction away from the stopper to avoid leaving a space for the demoulding member to continue rotating; when the demoulding member rotates and resets in a second direction opposite to the first direction to reset the starting end of the forming thread to the initial forming position, the stopped limit arm limits the rotation and reset of the demoulding member; The return drive member is connected to the limit arm and is used to provide a driving force for returning the limit arm from a position away from the stop member to a position stopped by the stop member.

2. The demoulding assembly according to claim 1, characterized in that: The demoulding member forms a protruding portion protruding from its outer peripheral wall, and the protruding portion cooperates with the demoulding member to form a limiting notch that cooperates with the limiting arm when rotating and resetting.

3. The demoulding assembly according to claim 1, characterized in that: Also includes: A vertical rotating shaft is provided on the mold body and is rotatably sleeved on the limiting arm to form an anti-slip portion which is located above the limiting arm and protrudes from the outer peripheral wall thereof.

4. The demoulding assembly according to claim 1, characterized in that: The return drive member includes an elastic member, which is respectively connected to the mold body and the limiting arm.

5. The demoulding assembly according to claim 1, characterized in that: The return drive member includes: a tension spring, which is respectively connected to the mold body and the limiting arm.

6. The demoulding assembly according to claim 1, characterized in that: There are multiple demoulding parts, and each demoulding part is provided with a first gear; The demoulding assembly further includes a gear transmission member, which is meshed with the first gears.

7. The demoulding assembly according to claim 6, characterized in that: The gear transmission member includes a second gear. A plurality of the first gears are arranged at intervals on the outer peripheral side of the second gear and mesh with the second gear.

8. The demoulding assembly according to claim 6, characterized in that: The tooth transmission member comprises an annular toothed belt, and a plurality of the first gears are sleeved inside the annular toothed belt and meshed with the annular toothed belt.

9. The demoulding assembly according to claim 1, characterized in that: The molded thread is formed at the top end of the demoulding member.

10. A mold, characterized in that It comprises the demoulding assembly and the mold body as described in any one of claims 1 to 9, wherein the part of the demoulding member provided with the molding thread is rotatably arranged in the mold body and cooperates with the mold body to form a molding cavity capable of molding a product.

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