Automatic thread twisting demolding mold for twist cap product

Abstract

The utility model discloses an automatic twisted thread demoulding mould of twist cap product, including: forming mould mechanism, first twisted thread mechanism, second twisted thread mechanism, forming mould mechanism includes left mould body, right mould body, upper mould body and lower mould body, left mould body and right mould body form the split structure, form the area of forming between left mould body and right mould body, and the area of forming between left mould body and right mould body forms the area of forming between left mould body and right mould body, and the area of forming between left mould body and right mould body is the area of forming between left mould body and right mould body. The left die body and the right die body are inserted between the upper die body and the lower die body in a sliding manner; the first thread twisting mechanism comprises a first thread twisting piece, the first thread twisting piece is provided with a first thread twisting end, the first thread twisting end is rotatably inserted into one end of the forming area, the second thread twisting mechanism comprises a second thread twisting piece, the second thread twisting piece is provided with a second thread twisting end, and the second thread twisting end is rotatably inserted into the other end of the forming area. Threads of the twist cap can be formed and demolded through the first rotatable twisted tooth piece and the second twisted tooth piece, anti-skid protrusions on the periphery of the twist cap can be formed through the left mold body and the right mold body which are of a split structure, and the forming mold mechanism is prevented from interfering with the anti-skid protrusions in the mold opening process.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an automatic thread-twisting and demoulding mold for twist-off cap products. Background Art

[0002] As a key auxiliary accessory in modern medical surgery, the twist cap plays a vital role in ensuring surgical precision and safety. During complex surgeries, surgeons rely on their superb skills to precisely insert a slender guidewire into the patient's body until it reaches the intended surgical site. At this point, the twist cap becomes a valuable aid in the surgeon's hands. By manually rotating the twist cap, the surgeon can securely adjust and lock the guidewire's position, ensuring a smooth surgical procedure.

[0003] like Figure 1 The figure shows a newly developed twist cap product, which has an internal thread structure at one end and an external thread structure at the other end, a through hole in the middle, and an anti-slip protrusion structure on the outer wall. Currently, an injection mold needs to be developed for this twist cap product. Utility Model Content

[0004] The embodiment of the present application provides an automatic thread-cutting demoulding die for a twist-off cap product, so as to solve the technical problem of forming a twist-off cap product.

[0005] The first aspect of the present application provides an automatic thread-cutting demoulding mold for a twist-off cap product, comprising:

[0006] A molding die mechanism comprises: a left mold body, a right mold body, an upper mold body, and a lower mold body, wherein the left mold body and the right mold body form a split structure, the left mold body has a left molding groove, the right mold body has a right molding groove that cooperates with the left molding groove, and the left molding groove and the right molding groove form a molding area, the upper mold body is located above the lower mold body, and the left mold body and the right mold body are respectively slidably inserted between the upper mold body and the lower mold body;

[0007] The first thread mechanism includes: a first drive assembly and a first thread member, wherein the first thread member has a first thread end, the first thread end is rotatably inserted into one end of the forming area, and the first drive assembly is connected to the first thread member and drives the first thread member to rotate;

[0008] The second thread mechanism includes: a second drive assembly and a second thread piece. The second thread piece has a second thread end. The second thread end is rotatably inserted at the other end of the forming area. The second drive assembly is connected to the second thread piece and drives the second thread piece to rotate.

[0009] The beneficial effects of the above embodiment are: the thread of the twist cap can be formed and demolded through the first rotatable first threaded part and the second threaded part, and the anti-slip protrusions on the outer periphery of the twist cap can be formed through the left mold body and the right mold body of the split structure, preventing the molding mold mechanism from interfering with the anti-slip protrusions during the mold opening process.

[0010] Based on the above embodiment, the embodiment of the present application can also be improved as follows:

[0011] In one embodiment of the present application: it also includes: a first pressure plate assembly, the first pressure plate assembly is rotatably installed with the first drive assembly; one side of the first pressure plate assembly is also slidably provided with a first mold sleeve, a second mold sleeve, and a second pressure plate assembly in sequence, the second pressure plate assembly is rotatably installed with the second drive assembly, the first mold sleeve and the second mold sleeve are arranged on the outside of the molding mold mechanism, the first mold sleeve and the second mold sleeve are connected by a mold locker, and the first pressure plate assembly is also connected to an injection tube inserted in the molding mold mechanism.

[0012] In one embodiment of the present application: the first driving component includes: a first driving member, a first rack, and a first gear group, the first rack is connected to the first driving member, the first gear group is rotatably installed on the first pressure plate group, the first gear group and the first rack are engaged, and the first toothed member is slidably inserted in the first gear group; the second driving component includes: a second driving member, a second rack, and a second gear group, the second rack is connected to the second driving member, the second gear group is rotatably installed on the second pressure plate group, the second gear group and the second rack are engaged, and the second toothed member is slidably inserted in the second gear group.

[0013] In one embodiment of the present application, a mandrel is inserted into the center of the first threaded member. The lower end of the mandrel has a first plug-in end, and the end of the second threaded member has a first slot, with the first plug-in end inserted into the first slot. This step has the beneficial effect of forming a through hole in the center of the twist cap for the guide wire to pass through by inserting the first plug-in end into the first slot, and also improving the stability of the positioning of the first threaded member and the end of the second threaded member.

[0014] In one embodiment of the present application, the present invention further comprises: guide rods and a first elastic member. The guide rods are two and connected to the first mold sleeve. The two guide rods form an eight-shaped structure. The small end of the eight-shaped structure is located on one side of the first pressure plate group, and the large end is located on the other side of the second pressure plate group. The left mold body and the right mold body are respectively slidably mounted on the corresponding guide rods. The first elastic member is disposed between the lower mold body and the left mold body and the right mold body. The beneficial effect of this step is that the eight-shaped structure is used to guide the mold opening action of the left mold body and the right mold body, so that the left mold body and the right mold body can be opened as required. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0016] Figure 1 It is a structural diagram of the twist cap product;

[0017] Figure 2 This is a schematic diagram of the structure of the automatic thread stripping mold for twist-off cap products;

[0018] Figure 3 for Figure 2 Cross-sectional view along AA;

[0019] Figure 4 for Figure 2 Cross-sectional view along BB;

[0020] Figure 5 It is a structural schematic diagram of the forming die mechanism being arranged in the lower die sleeve;

[0021] Figure 6 It is a partial structural diagram of the first thread mechanism;

[0022] Figure 7 It is a partial structural diagram of the second thread mechanism;

[0023] Figure 8 It is a structural schematic diagram of the first thread twisting mechanism and the second thread twisting mechanism being arranged in the forming die mechanism;

[0024] Figure 9 for Figure 8 Cross-sectional view along CC;

[0025] Figure 10 This is a schematic diagram of the three-dimensional structure of the automatic thread cutting and demoulding mold from the first perspective;

[0026] Figure 11 This is a schematic diagram of the three-dimensional structure of the automatic thread cutting and demoulding mold from the second perspective;

[0027] Figure 12 This is the front view of the automatic thread stripping mold;

[0028] Figure 13 for Figure 12 Cross-sectional view along DD;

[0029] Figure 14 for Figure 12 Cross-sectional view along EE;

[0030] Figure 15 for Figure 12 Left view of;

[0031] Figure 16 for Figure 15 Cross-sectional view along the middle line FF.

[0032] Among them, 1 forming mold mechanism, 101 left mold body, 102 right mold body, 103 upper mold body, 104 lower mold body, 105 forming area;

[0033] 2 first threading mechanism, 201 first drive assembly, 202 first threading member, 203 first threading end, 204 first drive member, 205 first rack, 206 first gear set, 207 first gear A, 208 first gear B, 209 first gear C, 210 first guide section, 211 first guide sleeve;

[0034] 3 second threading mechanism, 301 second drive assembly, 302 second threading member, 303 second threading end, 304 second drive member, 305 second rack, 306 second gear set, 307 second gear A, 308 second gear B, 309 second gear C, 310 second guide segment, 311 second guide sleeve;

[0035] 4 first pressing plate assembly, 401 first plate body A, 402 first plate body B;

[0036] 5 first mold sleeve, 501 first limiting groove, 502 first limiting bolt, 503 second elastic member, 504 guiding inclined surface;

[0037] 6 second mold sleeve, 601 second limiting groove, 602 second limiting bolt, 603 third elastic member;

[0038] 7 second pressing plate assembly, 701 second plate body A, 702 second plate body B;

[0039] 8 mold clamp, 9 injection tube, 10 first guide post, 11 second guide post;

[0040] 12 mandrels;

[0041] 13 guide rod, 14 first elastic member, 15 first guide block, 16 second guide block, 17 limit block, 18 limit plate. DETAILED DESCRIPTION

[0042] In this application, unless otherwise specified or limited, the terms used in this application should be understood broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection. It can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of different terms in this utility model can be understood according to specific circumstances. The scope of the specific meanings should be limited to achieving the functions of this application.

[0043] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention.

[0044] like Figure 2-9 As shown, an automatic thread-cutting and demoulding mold for a twist cap product includes: a forming mold mechanism 1, a first thread-cutting mechanism 2, and a second thread-cutting mechanism 3. The forming mold mechanism 1 includes: a left mold body 101, a right mold body 102, an upper mold body 103, and a lower mold body 104. The left mold body 101 and the right mold body 102 form a split structure. The left mold body 101 has a left forming groove, and the right mold body 102 has a right forming groove that cooperates with the left forming groove. The left forming groove and the right forming groove form a forming area 105. The upper mold body 103 is located above the lower mold body 104, and the left mold body 101 and the right mold body 102 are slidably inserted between the upper mold body 103 and the lower mold body 104 respectively; the first The threading mechanism 2 includes: a first driving component 201, a first threading member 202, the first threading member 202 has a first threading end 203, the first threading end 203 is rotatably inserted at one end of the forming area 105, the first driving component 201 is connected to the first threading member 202 and drives the first threading member 202 to rotate; the second threading mechanism 3 includes: a second driving component 301, a second threading member 302, the second threading member 302 has a second threading end 303, the second threading end 303 is rotatably inserted at the other end of the forming area 105, the second driving component 301 is connected to the second threading member 302 and drives the second threading member 302 to rotate.

[0045] Specifically, such as Figure 3 、 10As shown in , 11, the automatic thread-cutting demoulding mold also includes: a first pressure plate assembly 4, the first pressure plate assembly 4 is rotatably installed with a first drive assembly 201; one side of the first pressure plate assembly 4 is also slidably provided with a first mold sleeve 5, a second mold sleeve 6, and a second pressure plate assembly 7 in sequence, the second pressure plate assembly 7 is rotatably installed with a second drive assembly 301, the first mold sleeve 5 and the second mold sleeve 6 are sleeved on the outside of the molding mold mechanism 1, the first mold sleeve 5 and the second mold sleeve 6 are connected by a mold locker 8, the first mold sleeve 5 is connected to the first pressure plate assembly 4 by bolts, the second mold sleeve 6 is connected to the second pressure plate assembly 7 by bolts, and the first pressure plate assembly 4 is also connected to an injection tube 9 inserted in the molding mold mechanism 1.

[0046] Specifically, such as Figure 3 As shown, the first pressure plate assembly 4 includes: a first plate body A401 and a first plate body B402, the first plate body A401 and the first plate body B402 are connected by bolts, the center position of the first plate body A401 is connected with an injection tube 9 by bolts, and the lower end of the injection tube 9 is inserted into one end of the molding area 105; the second pressure plate assembly 7 includes: a second plate body A701 and a second plate body B702, the second plate body A701 and the second plate body B702 are connected by bolts, the first plate body A401 is used to connect to the fixed machine platform of the injection molding machine, and the second pressure plate A is used to connect to the movable machine platform of the injection molding machine.

[0047] Specifically, such as Figure 6 As shown, the first drive assembly 201 includes: a first drive member 204, a first rack 205, and a first gear set 206. The first rack 205 is connected to the first drive member 204, and the first gear set 206 is rotatably installed on the first pressure plate group. The first gear set 206 and the first rack 205 are engaged, and the first toothed member 202 is slidably inserted in the first gear set 206; the second drive assembly 301 includes: a second drive member 304, a second rack 305, and a second gear set 306. The second rack 305 is connected to the second drive member 304, and the second gear set 306 is rotatably installed on the second pressure plate group. The second gear set 306 and the second rack 305 are engaged, and the second toothed member 302 is slidably inserted in the second gear set 306.

[0048] Specifically, such as Figure 10 、 11 As shown, the first driving member 204 and the second driving member 304 are both oil cylinders. The first driving member 204 is installed on the first pressure plate assembly 4, and the second driving member 304 is installed on the second pressure plate assembly 7.

[0049] Specifically, such as Figure 6As shown, the piston rod of the first driving member 204 is connected to the first rack 205, and the first rack 205 is slidably inserted in the first channel corresponding to the first plate body A401. The first plate body A401 is also rotatably connected to a plurality of first rollers, and the first rollers are in rolling contact with the planar side edges of the first rack 205. The teeth of the first rack 205 are engaged with the first gear set 206 rotatably installed on the first pressure plate assembly 4, and the first rack 205 is guided to move in a straight line through the first rollers. The first gear set 206 includes: a first gear A207, a first gear B208, and a first gear C209. The first gear A207 and the first gear B208 are coaxially arranged. The first gear A207 is engaged with the first rack 205, and the first gear B208 is engaged with the first gear C209. The first gear C209 is provided with a square hole along the axis, and the first threaded member 202 is inserted into the square hole. The first threaded member 202 is driven to rotate by the first gear C209. The first threaded member 202 also has a first guide section 210, and the first guide section 210 is slidably inserted in the first guide sleeve 211 provided in the first mold sleeve 5.

[0050] Specifically, such as Figure 7 As shown, the piston rod of the second driving member 304 is connected to the second rack 305, and the second rack 305 is slidably inserted in the second channel correspondingly opened on the second plate body A701. The second plate body A701 is also rotatably connected to a plurality of second rollers, and the second rollers are in rolling contact with the planar side edges of the second rack 305. The teeth of the second rack 305 are engaged with the second gear set 306 rotatably installed on the second pressure plate assembly 7, and the second rack 305 is guided to move in a straight line through the second rollers. The second gear set 306 includes: a second gear A307, a second gear B308, and a second gear C309. The second gear A307 and the second gear B308 are coaxially arranged. The second gear A307 is engaged with the second rack 305. The second gear B308 is engaged with the second gear C309. The second gear C309 is provided with a square hole along the axis. One end of the second threaded member 302 is slidably inserted into the square hole. The second threaded member 302 is driven to rotate by the second gear C309. The second threaded member 302 also has a second guide section 310. The second guide section 310 is slidably inserted into the second guide sleeve 311 corresponding to the second die sleeve 6.

[0051] Specifically, such as Figure 9 As shown, the lower mold body 104 is provided with a first groove, in which a compression spring is inserted, which generates pressure on the second threaded part 302; the upper mold body 103 is provided with a second groove, in which a compression spring is inserted, which generates pressure on the first threaded part 202.

[0052] Specifically, such as Figure 4As shown, the automatic thread cutting and demolding mold also includes: a first guide pillar 10 and a second guide pillar 11. The first guide pillar 10 is arranged on the first pressure plate A, the first mold sleeve 5 and the second mold sleeve 6 are slidably mounted on the first guide pillar 10, the second guide pillar 11 is arranged on the second pressure plate A, and the second mold sleeve 6 is slidably mounted on the second guide pillar 11.

[0053] Specifically, such as Figure 4 、 16 As shown, a first limiting groove 501 is provided on the surface of the first mold sleeve 5 facing the second mold sleeve 6, and a second limiting groove 601 is provided on the surface of the second mold sleeve 6 facing the first mold sleeve 5. A first limiting bolt 502 connected to the first plate body B402 is provided in the first limiting groove 501, and a second limiting bolt 602 connected to the second plate body B702 is provided in the second limiting groove 601. The threaded end of the first limiting bolt 502 is also sleeved with a second elastic member 503 arranged between the first mold sleeve 5 and the first plate body B402, and the threaded end of the second limiting bolt 602 is also sleeved with a third elastic member 603 arranged between the second mold sleeve 6 and the second plate body B702. The first limiting groove 501 has space for the head of the first limiting bolt 502 to move, and the second limiting groove 601 has space for the head of the second limiting bolt 602 to move. The first mold sleeve 5 is also connected to a first guide member, and the second mold sleeve 6 also has a second guide member, which is slidably inserted into the first guide member.

[0054] Specifically, such as Figure 9 As shown, the automatic thread stripping mold further includes a mandrel 12, which is inserted into the center of the first thread member 202. The mandrel 12 has a first plug-in end at its lower end, and a first slot at the end of the second thread member 302, into which the first plug-in end is inserted. The first plug-in end is plugged into the first slot to position the first plug-in end. A through hole for the guide wire to pass through is formed in the center of the twist cap, and the stability of the positioning of the ends of the first thread member 202 and the second thread member 302 is also improved.

[0055] Specifically, such as Figure 12 、 13As shown in Figures 1 and 14, the automatic thread-cutting demoulding die further includes: a guide rod 13 and a first elastic member 14. There are two guide rods 13 and they are connected to the first die sleeve 5. The two guide rods 13 form an eight-shaped structure. The small end of the eight-shaped structure is located on one side of the first pressure plate group and the large end is located on the side of the second pressure plate group. The left mold body 101 and the right mold body 102 are slidably mounted on the corresponding guide rods 13 respectively. The eight-shaped structure is used to guide the mold opening action of the left mold body 101 and the right mold body 102, so that the left mold body 101 and the right mold body 102 can be opened as required. The first elastic member 14 is configured between the lower mold body 104 and the left mold body 101 and the right mold body 102. The groove walls of the left and right forming grooves are configured with forming grooves for forming anti-slip protrusions on the outer walls of the twist cap. The left mold body 101 and the right mold body 102 of the split structure allow the anti-slip protrusions on the outer periphery of the twist cap to be formed, preventing the molding mold mechanism 1 from interfering with the anti-slip protrusions during the mold opening process. At the same time, the first twisted tooth part 202 and the second twisted tooth part 302 can be rotated, so that the first twisted tooth end 203 and the second twisted tooth end 303 can be disengaged from the twist cap by rotation, so that the twist cap product can be molded and demolded.

[0056] Specifically, such as Figure 5 、 12 As shown in Figures 1 and 13, the first mold sleeve 5 has a guiding slope 504, which is parallel to the axis of the guide rod 13 on the same side. The left mold body 101 and the right mold body 102 are both provided with a first guide block 15 in sliding contact with the corresponding guiding slope 504. The second mold sleeve 6 is provided with a second guide block 16 along a straight line perpendicular to the mold opening direction. The lower mold body 104 is in sliding contact with the second guide block 16 along a straight line perpendicular to the mold opening direction. The outer end of the second mold sleeve 6 is also connected to a limiting block 17, which is used to limit the left mold body 101 and the right mold body 102 in the second mold sleeve 6.

[0057] Specifically, such as Figure 10 、 11 As shown, the automatic thread cutting and demoulding mold also includes: a limiting plate 18, and two waist-shaped holes are respectively opened at both ends of the limiting plate 18 along the length direction, and the waist-shaped holes are connected to the first pressing plate B and the second pressing plate B through bolts respectively.

[0058] When the automatic thread-demolding mold for this type of twist cap product is in use, the anti-slip protrusions on the outer periphery of the twist cap can be formed through the left mold body 101 and the right mold body 102 of the split structure, preventing the molding mold mechanism 1 from interfering with the anti-slip protrusions during the mold opening process. At the same time, the first thread piece 202 and the second thread piece 302 can be rotated, so that the first thread end 203 and the second thread end 303 can be disengaged from the twist cap by rotation, so that the thread of the twist cap product can be formed and demolded.

[0059] The above are only embodiments of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme based on their own abilities under the guidance of this application. Some typical known structures or methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, they can also make several variations and improvements, which should also be regarded as the scope of protection of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. An automatic thread-cutting demoulding die for twist-off cap products, characterized in that: include: A molding die mechanism comprises: a left mold body, a right mold body, an upper mold body, and a lower mold body, wherein the left mold body and the right mold body form a split structure, the left mold body has a left molding groove, the right mold body has a right molding groove that cooperates with the left molding groove, and the left molding groove and the right molding groove form a molding area, the upper mold body is located above the lower mold body, and the left mold body and the right mold body are respectively slidably inserted between the upper mold body and the lower mold body; The first thread mechanism includes: a first drive assembly and a first thread member, wherein the first thread member has a first thread end, the first thread end is rotatably inserted into one end of the forming area, and the first drive assembly is connected to the first thread member and drives the first thread member to rotate; The second thread mechanism includes: a second drive assembly and a second thread piece. The second thread piece has a second thread end. The second thread end is rotatably inserted at the other end of the forming area. The second drive assembly is connected to the second thread piece and drives the second thread piece to rotate.

2. The automatic thread cutting and demoulding mold according to claim 1, characterized in that: Also includes: A first pressure plate assembly, the first pressure plate assembly is rotatably installed with the first drive assembly; one side of the first pressure plate assembly is also slidably provided with a first mold sleeve, a second mold sleeve, and a second pressure plate assembly in sequence, the second pressure plate assembly is rotatably installed with the second drive assembly, the first mold sleeve and the second mold sleeve are arranged on the outside of the molding mold mechanism, the first mold sleeve and the second mold sleeve are connected by a mold locker, and the first pressure plate assembly is also connected to an injection tube inserted in the molding mold mechanism.

3. The automatic thread cutting and demoulding mold according to claim 2, characterized in that: The first driving assembly includes: a first driving member, a first rack, and a first gear set, wherein the first rack is connected to the first driving member, the first gear set is rotatably mounted on a first pressure plate set, the first gear set is meshed with the first rack, and the first threaded member is slidably inserted into the first gear set; The second drive assembly includes: a second drive member, a second rack, and a second gear set. The second rack is connected to the second drive member. The second gear set is rotatably mounted on the second pressure plate set. The second gear set is meshed with the second rack, and the second threaded member is slidably inserted into the second gear set.

4. The automatic thread cutting and demoulding mold according to claim 1, characterized in that: Also includes: The core shaft is inserted in the center of the first threaded part, the lower end of the core shaft has a first plug end, the end of the second threaded part has a first slot, and the first plug end is inserted into the first slot.

5. The automatic thread cutting and demoulding mold according to claim 2, characterized in that: Also includes: Guide rods and first elastic members, there are two guide rods and they are connected to the first mold sleeve, the two guide rods form an eight-shaped structure, the small end of the eight-shaped structure is located on one side of the first pressure plate group, and the large end is located on one side of the second pressure plate group, the left mold body and the right mold body are respectively slidably mounted on the corresponding guide rods, and the first elastic members are arranged between the lower mold body and the left mold body and the right mold body.

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