Forming die of support carrier for VCM (voice coil motor)

Abstract

The utility model discloses a forming die of a support carrier for a VCM (voice coil motor), which comprises an upper die assembly, a lower die assembly and a lower die assembly, the upper die assembly comprises an upper die top plate and an upper die plate, the upper die plate is provided with an upper die insert and opening and closing mechanisms, the bottom of the upper die insert is provided with an upper die cavity for forming, and the opening and closing mechanisms are arranged on two sides of the upper die insert; the lower mold assembly comprises a lower mold plate, a lower mold bottom plate and a lower supporting plate, a lower mold insert matched with the upper mold insert and an opening and closing side mold matched with the opening and closing mechanism are arranged on the lower mold plate, and a lower mold cavity matched with the upper mold cavity is formed in the top of the lower mold insert; and the thread removing mechanism is arranged in the lower mold assembly and below the lower mold insert and comprises a thread shaft, and the thread shaft penetrates through the lower mold insert and is rotatably connected with the lower mold insert, so that the product is separated from the lower mold cavity. According to the forming die, a tooth sleeve structure is omitted, accessory cost is saved, in addition, the transmission shaft body is detachably connected with the tooth shaft, replacement of the tooth shaft is facilitated, and the risk that the tooth shaft and the tooth sleeve are stuck is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to a molding mold of a support carrier for a VCM motor. Background Art

[0002] Among the structural components of a VCM voice coil motor is a "carrier," which is connected to the lens barrel to enable movement of the lens barrel. The inner ring of the carrier is made of threads that mate with the lens barrel through the threads. In the prior art, the main components of the screw removal mold are: a shaft for forming the threads, and a sleeve for removing the threads. The sleeve is fixed to the bottom of the shaft. The inner threads of the sleeve must match the thread profile of the carrier. The shaft rotates and retreats through the action of the sleeve, thereby separating from the product. However, due to the special nature of the carrier product (the thread profile needs to match different lens barrels), the shaft and sleeve need to be frequently replaced according to the thread profile of different lens barrels. The sleeve is complex and expensive to process, and there is a risk of the shaft getting stuck with the sleeve when rotating to remove the threads. Therefore, there is an urgent need to develop a forming mold to solve this problem. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a molding die for a support carrier for a VCM motor. The molding die eliminates the brace structure, saves the cost of accessories, and improves the stability of the fallen teeth.

[0004] Specifically, the utility model discloses a molding die for a support carrier for a VCM motor, comprising:

[0005] An upper mold assembly, comprising an upper mold top plate and an upper mold plate, wherein the upper mold top plate is provided with an injection port for allowing injection molding material to enter, an upper mold insert and an opening and closing mechanism are provided on the upper mold plate, the bottom of the upper mold insert has an upper mold cavity for molding, and the opening and closing mechanisms are provided on both sides of the upper mold insert;

[0006] A lower mold assembly, comprising a lower mold plate, a lower mold bottom plate, and a lower support plate; the lower mold plate is provided with a lower mold insert that matches the upper mold insert, and an opening and closing side mold that matches the opening and closing mechanism; and the top of the lower mold insert is provided with a lower mold cavity that matches the upper mold cavity;

[0007] The tooth removal mechanism is placed in the lower mold assembly and is located below the lower mold insert, including a tooth shaft, which passes through the lower mold insert and is rotatably connected to the lower mold insert to separate the support carrier from the lower mold cavity; wherein,

[0008] A spring assembly is provided between the lower template and the lower support plate;

[0009] The upper mold cavity, the lower mold cavity, the tooth axis, and the opening and closing side molds constitute the product cavity.

[0010] Furthermore, the opening and closing side mold includes an opening and closing block and a forming block, and the opening and closing block and the forming block are both slidably connected to the upper mold plate, and the first locking part of the opening and closing block and the second locking part of the forming block abut against each other, and the opening and closing block is also provided with a sliding groove matching the opening and closing mechanism.

[0011] Furthermore, the opening and closing mechanism includes a left opening and closing plate and a right opening and closing plate that are symmetrically arranged, and the bottoms of the left opening and closing plate and the right opening and closing plate have opening and closing portions that cooperate with the sliding groove.

[0012] Furthermore, the spring assembly includes four lifting springs, and the lower support plate has a receiving groove for receiving the lifting springs.

[0013] Furthermore, the tooth removal mechanism includes a connecting shaft, a transmission shaft, and a driven gear. The transmission shaft is rotatably connected to the lower mold base plate, and the driven gear is fixedly arranged on the outside of the transmission shaft. The bottom of the connecting shaft is slidingly connected to the upper part of the transmission shaft, and the upper part of the connecting shaft is fixedly connected to the tooth shaft.

[0014] Furthermore, a sliding groove is provided on the upper portion of the transmission shaft body to allow the connecting shaft body to slide.

[0015] Furthermore, the tooth-removing mechanism further includes a driving gear, which is controlled by a transmission motor and is transmission-connected to the driven gear.

[0016] Furthermore, the tooth removal mechanism also includes a push rod, the bottom of which is connected to the lifting plate of the lower mold assembly, and the upper part of which passes through the lower mold insert and is placed below the support carrier.

[0017] The beneficial effects of the present invention are:

[0018] The forming die eliminates the tooth brace structure, saving the cost of accessories. In addition, the transmission shaft body and the tooth shaft are detachably connected, which facilitates the replacement of the tooth shaft and avoids the risk of the tooth shaft and the tooth brace being stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0020] Figure 1 It is an axonometric view of the support carrier forming mold in the closed mold state;

[0021] Figure 2 is a cross-sectional view of the support carrier forming mold in a mold closing state;

[0022] Figure 3 This is a partial enlarged view of the product cavity of the support carrier molding die;

[0023] Figure 4 It is an axonometric view of the support carrier forming mold in the open mold state;

[0024] Figure 5 is a schematic diagram of an upper mold assembly supporting a carrier forming mold;

[0025] Figure 6 is a cross-sectional view of an upper mold assembly supporting a carrier forming mold;

[0026] Figure 7 is a schematic diagram of a lower mold assembly supporting a carrier forming mold;

[0027] Figure 8 is a schematic diagram of a lower support plate supporting a carrier forming die;

[0028] Figure 9 It is a schematic diagram of the tooth removal mechanism of the support carrier forming die;

[0029] Figure 10 This is a partial enlarged view of the tooth removal mechanism of the support carrier forming die;

[0030] Figure 11 It is a cross-sectional view of the tooth removal mechanism supporting the carrier forming mold.

[0031] The numbers involved in the accompanying drawings are as follows: upper mold assembly 1, upper mold top plate 11, injection port 111, upper mold plate 12, upper mold insert 121, upper model cavity 1211, opening and closing mechanism 122, left opening and closing plate 1221, right opening and closing plate 1222, opening and closing part 1223, lower mold assembly 2, lower mold plate 21, lower mold insert 211, lower model cavity 2111, opening and closing side mold 212, opening and closing block 2121, molding block 2122, first locking part 2123, second locking part 2124, slide groove 2125, lower mold bottom plate 22, lower support plate 23, accommodating groove 231, lifting plate 24, tooth stripping mechanism 3, tooth shaft 31, connecting shaft 32, transmission shaft 33, sliding groove 331, driven gear 34, ejector rod 35, spring assembly 4, product cavity 5, injection runner 6. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-11 As shown, the utility model discloses a molding die for a support carrier for a VCM motor, comprising:

[0034] The upper mold assembly 1 includes an upper mold top plate 11 and an upper mold plate 12. The upper mold top plate 11 is provided with an injection port 111 for allowing injection material to enter. The upper mold plate 12 is provided with an upper mold insert 121 and an opening and closing mechanism 122. The bottom of the upper mold insert 121 has an upper mold cavity 1211 for molding. The opening and closing mechanisms 122 are provided on both sides of the upper mold insert 121.

[0035] The lower mold assembly 2 includes a lower mold plate 21, a lower mold base plate 22, and a lower support plate 23. The lower mold plate 21 is provided with a lower mold insert 211 that cooperates with the upper mold insert 121, and an opening and closing side mold 212 that matches the opening and closing mechanism 122. The top of the lower mold insert 211 is provided with a lower mold cavity 2111 that matches the upper mold cavity 1211;

[0036] The tooth removal mechanism 3 is placed in the lower mold assembly 2 and is located below the lower mold insert 211. It includes a tooth shaft 31 that passes through the lower mold insert 211 and is rotatably connected to the lower mold insert 211 to separate the support carrier from the lower mold cavity 2111; wherein,

[0037] A spring assembly 4 is provided between the lower template 21 and the lower support plate 23;

[0038] The upper mold cavity 1211 , the lower mold cavity 2111 , the tooth axis 31 , and the opening and closing side mold 212 constitute the product mold cavity 5 .

[0039] In addition, the injection port 111 is connected to each product cavity 5 through the injection runner 6 .

[0040] In order to facilitate the side wall molding of the product and to facilitate separation from the product cavity 5, the opening and closing side mold 212 includes an opening and closing block 2121 and a molding block 2122. The opening and closing block 2121 and the molding block 2122 are both slidably connected to the upper mold plate 12, and the first locking part 2123 of the opening and closing block 2121 and the second locking part 2124 of the molding block 2122 abut against each other, and the opening and closing block 2121 is also provided with a sliding groove 2125 that matches the opening and closing mechanism 122.

[0041] The opening and closing block 2121 moves to both sides under the action of the opening and closing mechanism 122, and at the same time drags the forming block 2122 to move, so that the forming block 2122 is separated from the supporting carrier. The structure is simple and easy to maintain.

[0042] In order to facilitate the cooperation between the opening and closing mechanism 122 and the opening and closing side mold 212, the opening and closing mechanism 122 includes a left opening and closing plate 1221 and a right opening and closing plate 1222, which are symmetrically arranged. The bottom of the left opening and closing plate 1221 and the right opening and closing plate 1222 has an opening and closing portion 1223 that cooperates with the slide groove 2125. The angle formed by the line connecting the opening and closing portion 1223 of the left opening and closing plate 1221 and the opening and closing portion 1223 of the right opening and closing plate 1222 is greater than 30 degrees. When the opening and closing mechanism 122 moves downward, the opening and closing portion 1223 of the left opening and closing plate 1221 and the right opening and closing plate 1222 are connected. During operation, the opening and closing portion 1223 inserts into the corresponding chute 2125, causing the opening and closing block 2121 and the forming block 2122 to move toward the interior of the lower mold insert 211 on both sides, forming a closed product cavity 5. When the opening and closing mechanism 122 moves upward, the opening and closing portion 1223 separates from the chute 2125, causing the opening and closing block 2121 and the forming block 2122 to move toward the exterior of the lower mold insert 211 on both sides, separating the forming block 2122 from the support carrier. The provision of the opening and closing side molds and the opening and closing mechanism improves the stability of the support carrier during demolding.

[0043] In addition, in some embodiments of the present invention, the spring assembly 4 may adopt four lifting springs, and the lower support plate 23 has a receiving groove 231 for accommodating the lifting spring. When the upper mold assembly 1 stops applying pressure to the lower mold plate 21, the lifting spring lifts the lower mold plate 21 for a distance, leaving a tooth removal space for the tooth removal mechanism, making it easier for the tooth removal mechanism 3 to remove the teeth and detach from the support carrier.

[0044] The tooth stripping mechanism 3 includes a connecting shaft 32, a transmission shaft 33, and a driven gear 34. The transmission shaft 33 is rotatably connected to the lower mold base plate 22. The driven gear is fixedly mounted on the outside of the transmission shaft 33. The bottom of the connecting shaft 32 is slidably connected to the upper portion of the transmission shaft 33, and the upper portion of the connecting shaft 32 is fixedly connected to the tooth shaft 31. The upper portion of the transmission shaft 33 is provided with a sliding groove 331 that allows the connecting shaft 32 to slide. The driven gear 34 is fixedly connected to the transmission shaft 33. Under the action of the driving force, the driven gear 34 drives the transmission shaft 33, the connecting shaft 32, and the tooth shaft 31 to rotate. Because the support carrier is fixed in the product cavity 5, the tooth shaft 31 rotates and gradually separates from the support carrier. When the lifting spring lifts the upper template 12, the upper template 12 drives the tooth shaft 31 to move upward together, so that the connecting shaft 32 slides in the sliding groove 331 of the transmission shaft 33. When the transmission shaft 33 rotates, the tooth shaft 31 gradually separates from the supporting carrier and slowly descends under the action of gravity until the tooth shaft 31 is completely separated from the supporting carrier, completing the tooth removal action.

[0045] The driven gear 34 is controlled by the driving gear, which is controlled by the transmission motor. The driving gear is connected to the driven gear 34 to increase the driving force.

[0046] After the tooth removal is completed, in order to make the supporting carrier more convenient to separate from the product cavity 5, the tooth removal mechanism 3 is also provided with a push rod 35. The bottom of the push rod 35 is connected to the lifting plate 24 of the lower mold assembly 2, and the upper part passes through the lower mold insert 211 and is placed under the supporting carrier. The lifting plate 24 moves upward, driving the push rod 35 to move together, and pushing the supporting carrier out of the product cavity 5.

[0047] The working mode of the utility model is as follows:

[0048] The upper mold assembly 1 moves downward and docks with the lower mold assembly 2, and the injection material enters the product cavity 5 through the injection port 111 and the injection runner 6; after the injection material is solidified, the upper mold assembly 1 moves upward by an end distance, and at this time the jacking spring lifts the lower mold plate 21 for a distance, and the transmission motor works to drive the driving gear to rotate, thereby rotating the tooth shaft 31, and the tooth shaft 31 gradually separates from the supporting carrier, and at the same time slowly descends under the action of gravity until the tooth shaft 31 is completely separated from the supporting carrier, completing the tooth removal action; then the upper mold assembly 1 is lifted, and the jacking plate 24 moves upward, driving the ejector rod 35 to move together, and the supporting carrier is ejected from the product cavity 5.

[0049] For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A molding die for a support carrier for a VCM motor, characterized in that: include: An upper mold assembly (1), the upper mold assembly (1) comprising an upper mold top plate (11) and an upper mold plate (12), the upper mold top plate (11) being provided with an injection port (111) for allowing injection molding material to enter, the upper mold plate (12) being provided with an upper mold insert (121) and an opening and closing mechanism (122), the bottom of the upper mold insert (121) being provided with an upper mold cavity (1211) for molding, and the opening and closing mechanism (122) being provided on both sides of the upper mold insert (121); A lower mold assembly (2), the lower mold assembly (2) comprising a lower mold plate (21), a lower mold base plate (22), and a lower support plate (23); the lower mold plate (21) is provided with a lower mold insert (211) that matches the upper mold insert (121), and an opening and closing side mold (212) that matches the opening and closing mechanism (122); the top of the lower mold insert (211) is provided with a lower mold cavity (2111) that matches the upper mold cavity (1211); A tooth removal mechanism (3), the tooth removal mechanism (3) is placed in the lower mold assembly (2) and is arranged below the lower mold insert (211), comprising a tooth shaft (31), the tooth shaft (31) passes through the lower mold insert (211) and is rotatably connected to the lower mold insert (211), so that the support carrier is separated from the lower mold cavity (2111); wherein, A spring assembly (4) is provided between the lower template (21) and the lower support plate (23); The upper mold cavity (1211), the lower mold cavity (2111), the tooth axis (31), and the opening and closing side mold (212) constitute a product mold cavity (5).

2. The molding die for the support carrier for the VCM motor according to claim 1, characterized in that: The opening and closing side mold (212) comprises an opening and closing block (2121) and a forming block (2122), wherein the opening and closing block (2121) and the forming block (2122) are both slidably connected to the upper mold plate (12), and a first locking portion (2123) of the opening and closing block (2121) and a second locking portion (2124) of the forming block (2122) abut against each other, and a sliding groove (2125) matching the opening and closing mechanism (122) is further provided on the opening and closing block (2121).

3. The molding die for the support carrier for the VCM motor according to claim 2, characterized in that: The opening and closing mechanism (122) comprises a symmetrically arranged left opening and closing plate (1221) and a right opening and closing plate (1222), and the bottoms of the left opening and closing plate (1221) and the right opening and closing plate (1222) have an opening and closing portion (1223) that cooperates with the sliding groove (2125).

4. The molding die for the support carrier for the VCM motor according to claim 1, characterized in that: The spring assembly (4) includes four lifting springs, and the lower support plate (23) has a receiving groove (231) for receiving the lifting springs.

5. The molding die for the support carrier for the VCM motor according to claim 1, characterized in that: The tooth stripping mechanism (3) comprises a connecting shaft (32), a transmission shaft (33), and a driven gear (34); the transmission shaft (33) is rotatably connected to the lower mold base plate (22); the driven gear (34) is fixedly arranged on the outside of the transmission shaft (33); the bottom of the connecting shaft (32) is slidably connected to the upper part of the transmission shaft (33); and the upper part of the connecting shaft (32) is fixedly connected to the tooth shaft (31).

6. The molding die for the support carrier for the VCM motor according to claim 5, characterized in that: The upper portion of the transmission shaft (33) is provided with a sliding groove (331) that allows the connecting shaft (32) to slide.

7. The molding die for the support carrier for the VCM motor according to claim 5, characterized in that: The tooth stripping mechanism (3) further comprises a driving gear, which is controlled by a transmission motor and is in transmission connection with the driven gear (34).

8. The molding die for the support carrier for the VCM motor according to claim 5, characterized in that: The tooth removal mechanism (3) further comprises a push rod (35), the bottom of which is connected to the lifting plate (24) of the lower die assembly (2), and the upper portion of which passes through the lower die insert (211) and is placed below the support carrier.

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