CN109732854B - Double-color die thread core-pulling device - Google Patents
Double-color die thread core-pulling device Download PDFInfo
- Publication number
- CN109732854B CN109732854B CN201910012568.8A CN201910012568A CN109732854B CN 109732854 B CN109732854 B CN 109732854B CN 201910012568 A CN201910012568 A CN 201910012568A CN 109732854 B CN109732854 B CN 109732854B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- hook
- thread
- oil cylinder
- rack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention discloses a double-color die thread core pulling device which comprises a thread unscrewing device and a driving device, wherein the driving device is provided with a mechanism for driving the thread unscrewing device to complete core pulling and resetting, the thread unscrewing device and the driving device are arranged separately, the thread unscrewing device is arranged on a die, the driving device is arranged on a machine table, and the driving device and the thread unscrewing device are also provided with structures for enabling the thread unscrewing device and the die to be automatically clamped and separated. The invention solves the defects that the thread core pulling device is arranged on the die by the double-color die, so that the die is too large, and the rotating action cannot be realized due to the interference with an injection molding machine table when the station is switched; with the separation of driver part and mould body, utilize the space on the injection molding machine to shorten mould body radius of rotation, effectively utilize the space, can accomplish the double-colored mould product injection molding with the screw thread on less board.
Description
The technical field is as follows:
the invention relates to a double-color mold, in particular to a double-color mold thread core pulling device.
Background art:
for a multi-cavity double-color mold with a threaded core pulling device, the core pulling needs to be driven by an oil cylinder; due to the factor of transmission ratio, the stroke of the driving oil cylinder is longer. Because of the action characteristic of the bicolor mold, 2 stations are arranged on the movable mold side. Each mold closing needs to be rotated by 180 degrees to exchange molding stations; therefore, if the oil cylinder is directly arranged on the mold, the oil cylinder can interfere with the injection molding machine table when the mold acts, so that the action cannot be realized.
The invention content is as follows:
the conventional thread core pulling device is arranged on a mold, but for certain double-color mold products, the installation of the core pulling mechanism on the mold can cause interference between an oil cylinder and an injection molding machine table and incapability of realizing rotating action due to the fact that the mold has two stations. The invention provides a double-color die thread core pulling device to solve the problem.
This technical scheme does, including screw thread take-off device and drive arrangement soon, drive arrangement has the drive the screw thread takes off the device soon and accomplishes the mechanism of loosing core and restoring to the throne, the screw thread take off the device soon with drive arrangement separation sets up, the screw thread takes off the device soon and sets up on the mould, drive arrangement sets up on the board, drive arrangement and screw thread take off still to be provided with on the device and make both can automatic block and the automatic structure that breaks away from.
The technical principle is that generally, the thread core pulling device comprises a thread unscrewing device and a driving device, and the thread core pulling device is usually directly arranged on a mold. When the thread is demolded, the thread unscrewing device drives the thread core to be unscrewed for demolding under the driving of the driving device, and the thread core is reset after the part is ejected out to prepare for next injection molding. Because the double-color die has two stations, the die is required to rotate 180 degrees during station conversion, and the transmission ratio factor causes that the stroke of the driving device is longer, for example, an oil cylinder is used as the driving device, and the oil cylinder needs to be longer due to the long stroke, so the size is larger. If still set up drive arrangement on the mould, then can lead to the size of mould very big, can cause radius of rotation very big when rotatory to interfere with the board of moulding plastics, lead to the action that the station switches to realize inefficiently, perhaps just need change bigger board of moulding plastics. Therefore, the driving device and the thread unscrewing device are arranged separately, the thread unscrewing device is arranged on the die, the driving device is arranged on the machine table, and the thread unscrewing device is started along with the die when the die rotates. And the driving device is fixed and does not move along with the die, and when the die needs to be demolded at a first station, the driving device is connected with the thread unscrewing device through automatic clamping, and the thread unscrewing device is driven to loose the core and reset. After the demolding and resetting are completed, the driving device is automatically separated from the thread unscrewing device, and then the mold is rotationally switched to the second station. Therefore, the mold keeps a smaller size, the switching of the mold stations can be realized on a smaller machine table, and the problem of overlarge mold rotating radius caused by the long thread core pulling stroke of the double-color mold is solved.
Further, the thread unscrewing device comprises a rack, and the rack moves to drive the thread unscrewing device to loose cores and reset; the driving device comprises an oil cylinder and a connecting rod connected to the oil cylinder, and the connecting rod and the thread unscrewing device are provided with the automatic clamping and automatic disengaging structures; the connecting rod drives the rack to complete core pulling and resetting of the thread unscrewing device after being clamped and connected with the thread unscrewing device. The thread unscrewing device completes the core pulling and resetting of the thread core through the matching of the gear and the rack, and the linear repeated motion of the rack pushes or pulls through the oil cylinder to complete the core pulling and the resetting of the thread core. Particularly, the oil cylinder is connected with a connecting rod, and the connecting rod and the thread unscrewing device are provided with automatic clamping and automatic disengaging structures, so that automatic connection and separation of the driving device and the thread unscrewing device can be realized without manual intervention, automatic production can be realized, and production efficiency can be improved.
Furthermore, the extending direction of the oil cylinder is consistent with the extending direction of the rack; the automatic clamping and automatic disengaging mechanism comprises an elastic return mechanism arranged on the connecting rod, a clamping hook part arranged at the far end of the connecting rod and a clamping hook arranged on the thread unscrewing device, and the clamping hook has a shape matched with the clamping hook part; the thread unscrewing device is also provided with a guide part for guiding in and out the connecting rod; in an initial state, the connecting rod is separated from the thread unscrewing device; when the oil cylinder moves forwards, the far end of the connecting rod gradually approaches to the guide part until the far end of the connecting rod contacts with the guide part, the guide part enables the connecting rod to abut against the end part of the rack in the extending direction, and the hook part is matched with the hook; the oil cylinder continues to move in the forward direction, the connecting rod pushes the rack to move, and the thread unscrewing device achieves core pulling; during the return process of the oil cylinder, the combination of the clamping hooks enables the rack to be driven by the connecting rod to return, so that the threaded core returns to the position; when the far end of the connecting rod reaches the guide part, the elastic restoring mechanism drives the connecting rod to separate the hook part from the hook.
Furthermore, the driving device also comprises a fixed seat, and the connecting rod is hinged on the fixed seat by taking the position as a hinge point at the middle position in the extending direction of the connecting rod; the elastic restoring mechanism is a return spring, and the return spring is positioned on the side surface of the near end of the connecting rod and matched with the connecting rod; the return spring enables the far end of the connecting rod to swing by taking the hinge point as a fulcrum in an initial state; the far end of the connecting rod is provided with the hook part formed by a hook structure; the thread unscrewing device further comprises a connecting rod leading-in piece, the connecting rod leading-in piece is provided with an edge parallel to the extending direction of the rack, and the guiding part is arranged at the proximal end of the connecting rod leading-in piece; the far end of the connecting rod is a free end when the return spring is in an initial state; in a first state, the far end of the connecting rod reaches the position of the guide part under the driving of the oil cylinder, the guide part is contacted with the side surface of the connecting rod, and the guide part applies force to the connecting rod to enable the far end of the connecting rod to swing by taking the hinge point as a fulcrum, so that the far end of the connecting rod is abutted against the rack, and the clamping hook part is matched with the clamping hook; in the second state, the far end of the connecting rod returns to the position of the guide part under the driving of the oil cylinder, the far end of the connecting rod swings under the elastic force of the return spring, the hook part and the hook are separated, the return spring returns to the initial state, and the far end of the connecting rod returns to the free end.
Furthermore, the thread unscrewing device also comprises a hook fixing seat, the hook fixing seat is fixedly connected to the rack, and the hook is arranged on the hook fixing seat; the hook part is a structure which is perpendicular to the side surface of the connecting rod and extends outwards, and the extending direction of the hook part is parallel to the extending direction of the hook part, extends outwards from the hook fixing seat and is perpendicular to the extending direction of the rack; the connecting rod guide piece is arranged in alignment with the rack, the guide part is a guide surface formed by chamfering the edge, and the chamfer is arranged opposite to the clamping hook; the guide part and the hook are separated from each other to form an opening, and the opening is provided with a space for the distal end of the connecting rod to pass through; the end part of the position of the opening, which is parallel to the extending direction of the rack, is provided with a groove; the hook fixing seat, the hook, the connecting rod lead-in part and the end part of the rack are enclosed together to form an open cavity; the far end of the connecting rod slides into the open cavity after contacting the guide part, and the inner side surface of the hook part is in contact fit with the hook.
Further, the driving device is positioned right below the die. Because conventional injection molding machine platform, it has great space to be located the mould below, consequently sets up drive arrangement under the mould. Of course, the injection molding machine can be arranged at other suitable positions for special injection molding machines.
Furthermore, the number of the oil cylinders is 2, the oil cylinders comprise a first oil cylinder and a second oil cylinder which are arranged in parallel, and the second oil cylinder is integrally connected to the first oil cylinder. Because the thread core pulling needs a longer stroke, a longer stroke is needed for realizing the purpose, if 2 parallel oil cylinders are used, for example, the stroke of the first oil cylinder is L1, and the stroke of the second oil cylinder is L2, compared with the oil cylinder with a single L1+ L2 stroke, the length of the parallel oil cylinders in the initial condition is less than L1+ L2 when the L1+ L2 stroke is reached. Preferably, L1 and L2 are equal, so that the length occupied by the 2 cylinders arranged in parallel in the initial condition is L1, and half of the space in the length direction of the cylinders is saved.
Further, the oil cylinder may also include more, for example, 3, 4, and a plurality of oil cylinders are arranged in parallel, and each oil cylinder is connected to the previous oil cylinder in turn.
The beneficial effects of the invention are:
1. the invention solves the defects that the thread core pulling device is arranged on the die by the double-color die, so that the die is too large, and the rotation action cannot be realized due to the interference with an injection molding machine table when the station is switched; the driving part is separated from the die body, and the space on the injection molding machine is utilized, so that the rotating radius of the die body is shortened, the space is effectively utilized, and the injection molding of the double-color die product with threads can be finished on a smaller machine table;
2. the driving device automatically completes the combination and separation of the driving part and the thread unscrewing and core pulling device under the driving of the motor, the actions of automatic clamping and automatic separation are accurate, the structure is simple, and the working efficiency is high;
3. the driving device adopts the multi-stage oil cylinder, so that the size of the driving device is further reduced.
Description of the drawings:
FIG. 1 is a schematic view of a screw unscrewing device and a driving device according to the invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic view of the complete engagement of the thread take-off device and the drive device;
FIG. 4 is a schematic view of a rack of the screw unscrewing device pushed by the driving device;
FIG. 5 is a perspective view of the drive device;
fig. 6 is an enlarged view at B in fig. 3.
The labels in the figure are: the device comprises a seat plate 1, a seat plate 2, a second seat plate 3, a first oil cylinder 4, a second oil cylinder 5, a slide block 6, a limit block 7, a connecting rod fixing seat 8, a connecting rod 9, a connecting rod limiting block 10, a spring fixing block 11, a cover plate 12, a top block 13, a hinge point 14, an oil cylinder connecting block 14, a rack leading-in part 15, a rack 16, a connecting screw 17, a hook fixing seat 18, a hook 19, a hook 20, a hook spring 21, a hook fixing screw 22, a return spring 150, a leading part 81, a hook part 80 and an opening 90.
The specific implementation mode is as follows:
example (b):
as shown in fig. 1, the two-color mold core pulling device of the present embodiment includes a thread unscrewing device 100 and a driving device 200. The screw thread unscrewing device 100 is directly formed on the mold, and the driving device 200 is fixed on the injection molding machine, specifically, the driving device 200 is disposed right below the mold because a position below the mold has a large installation space. In this embodiment, the thread unscrewing device 100 realizes core pulling and resetting by the cooperation of the gear and the rack, and the rack reciprocates to drive the core pulling and resetting of the thread core. The driving device 200 is provided with an oil cylinder, and when the product is molded, the oil cylinder receives a signal and then the driving device is ejected upwards to drive the gear rack to act; and after the core-pulling product is ejected, the oil cylinder returns and is separated from the mold, so that the mold can rotate to enter the next production period. The structure effectively solves the structural problem of the die, and has stable and reliable operation and simple and easy allocation.
As shown in fig. 5, the driving device 200 includes a 2-stage cylinder system, and the 2-stage cylinder system is composed of 2 first cylinders 3 and 1 second cylinder 4, wherein the first cylinders 3 and the second cylinders 4 are arranged in parallel, and the extending directions of all the cylinders are parallel to the extending direction of the rack 16. The first oil cylinder 3 is installed on the seat plate 1, the second oil cylinder 3 is installed on a second seat plate 2, a sliding groove is formed in the seat plate 1, and the second seat plate 2 can reciprocate in the sliding groove in the seat plate 1. The second seat plate 2 is connected with the first oil cylinder 3 through the oil cylinder connecting block 14, so that the second oil cylinder 4 can be driven by the first oil cylinder 3. The stroke of the first cylinder 3 is limited by the limit block 6 and the slide block 5. As shown in fig. 5, if the distance between the stoppers 15 of the row stopper 5 is L1, the stroke of the first cylinder 3 is L1.
As shown in fig. 2 to 4, if the stroke of the second cylinder 4 is L2, the total stroke of the cylinders is L1+ L2.
The device also comprises a connecting rod 8 and a connecting rod fixing seat 7. The connecting rod fixing seat 7 is connected with the second oil cylinder 4, so that the second oil cylinder 4 can push the connecting rod fixing seat 7 to move. The connecting rod fixing seat 7 is positioned below the connecting rod 8 and is provided with a plane; the connecting rod 8 is a rod piece with a rectangular cross section, a hinge point 13 is arranged in the middle of the connecting rod 8 in the length extending direction, the connecting rod 8 is hinged on the connecting rod fixing seat 7 at the point, and the hinge shaft is perpendicular to the plane of the connecting rod fixing seat 7. The connecting rod fixing seat 7 is further provided with an elastic restoring mechanism, and the elastic restoring mechanism is arranged at the near end of the connecting rod 8 and is positioned in the direction of one side face of the connecting rod 8. The elastic restoring mechanism comprises a return spring 22 and the top block 12. The top block 12 is a cylindrical member, the head end of which is vertically abutted against the side surface of the connecting rod 8, and the tail end of which is abutted against or connected with the return spring. In this embodiment, the return spring 22 is a compression spring, the return spring 22 is installed in the fixed block 10 and combined with the cover plate 11 to form an inner cavity, and one end of the return spring 22 abuts against one end of the cover plate 11 and abuts against the top block 12. The return spring 22 is set to have an initial swing angle in the counterclockwise direction with the distal end of the link 8 as a fulcrum at the hinge point 13 in the initial state. At the proximal end of the link 8, on the opposite side to the side on which the top block 12 is located, a link stopper 9 is provided. The distal end of the link 8, opposite the face of the top block 12, is provided with a hook portion 81, the hook portion 81 being an extension arm extending perpendicular to the side face. At the distal end of the link 8. The hooking portion 81 is used to hook a hook provided on the screw-off device 100 so that the rack can be pulled to move when the link 8 is retracted, which will be described in detail below. The leading-in portion 71 is formed by chamfering the edge of the connecting rod opposite to the surface of the hook portion 81 at the distal end of the connecting rod. The guide portion 71 is used to cooperate with a guide portion of the screw-off device 100 to achieve the function of automatic guiding in and out, which will be described in detail in the following.
The thread unscrewing device 100 comprises a rack 16, the rack 16 is matched with a gear, the gear is driven to rotate through the reciprocating motion of the rack, and the gear is connected with a threaded core, so that the core pulling and resetting of the threaded core of the double-color mold can be realized.
As shown in fig. 2 to 4, the screw unscrewing device 100 further includes a connecting rod guiding member 15 and a hook fixing seat 18. The link guide 15 is a strip-shaped member and is located on one side of the rack 16, and the long side of the link guide 15 is flush with the edge of the rack 16 in the extending direction. The hook fixing seat 18 is positioned at the other side of the rack 16, and the hook fixing seat 18 is connected with the rack 16 through a connecting screw 17; the hook fixing seat 18 is provided with a hook 19. Specifically, the hook 19 is a strip-shaped part of a hook part 81 perpendicular to the extending direction of the rack, and is installed on the hook fixing seat 18 through a hook fixing screw 21 and a hook fixing spring 20, the hook fixing spring 20 and the hook 19 are positioned in a stepped hole of the hook fixing seat 18, and the hook 19 penetrates through the hole and faces the direction of the rack 16; the hook fixing spring 20 abuts against the end of the hook 19 and is compressed in the stepped hole by a hook fixing screw 21, so that the hook 19 has a certain compression performance in the axial direction.
The proximal end of the rod guide 15 is spaced from the catch 19 to form an opening 90, the opening 90 allowing the distal end of the rod 8 to pass through, the opening 90 corresponding to the beginning of the extension direction of the rack 16, which means that the rod 8 can abut the beginning of the extension of the rack 16 after entering the opening 90, i.e. the rod 8 can push the rack 16 to move. Meanwhile, after entering the opening 90, the inner side of the hook part 81 of the connecting rod 8 can be contacted with the side surface of the hook 19, and when the connecting rod 8 retracts, the rack 16 can be pulled; the reciprocating movement of the rack 16 is thus driven by the reciprocating movement of the connecting rod 8.
The link 8 not only can drive the rack 16 to reciprocate, but also the two can be automatically combined and separated. This is achieved by the elastic return means, the lead-in 81 at the distal end of the link 8, the guide 150 of the link lead-in 15. As shown in fig. 6, the edge of the link guide 15 on the side closer to the rack 16 is chamfered to form a guide 150, and the chamfered guide 80 is also provided on the edge on the side of the link 8 on the distal end. In this embodiment, the leading portion 80 and the guiding portion 150 are both chamfered at 45 °, and the leading portion 80 and the guiding portion 150 are in contact during the forward movement of the connecting rod 8, and the distal end of the connecting rod 8 can swing due to the proximal side elastic restoring device which is hinged at the middle of the connecting rod 8. During the continued pushing of the link 8, the distal end of the link 8 slides into the opening 90 formed between the link guide 15 and the catch 19, due to the lateral force exerted by the guide 150, and then abuts against the rack 16; the hook portion 81 and the hook 19 are hooked. The connecting rod 8 continues to advance to push the rack 16 to advance; the connecting rod 8 can drive the rack 16 to retreat in the process of retreating. It will be appreciated that the lead-in portion 80 of the connecting rod 8 may be rounded to provide the same lead-in function.
In the initial state of the link 8, the distal end of the link 8 is biased to the left side, which is not exactly open to the distal end of the link 8, with the hinge point 13 as a fulcrum under the action of the return spring 22. When the two-stage cylinder system is pushed, firstly, through the stroke of L1, the guide portion of the distal end of the link 8 contacts the guide portion of the link guide, and under the pushing action of the cylinder, the link slides into the opening 90, so that the distal end of the link 8 abuts against the end of the rack 16, and the hook portion 81 and the hook 19 are combined. And the oil cylinder continues to push, and the connecting rod 8 pushes the rack 16, so that the threaded core is subjected to core pulling. After the pushing stroke is completed, the oil cylinder starts to return, and in the process of returning the connecting rod 8, because the hook part 81 of the connecting rod 8 is combined with the hook 19, the connecting rod 8 drives the rack 16 to return, so that the threaded core returns. When the distal end of the link returns to the open position, the leading portion 80 and the leading portion 150 contact again, and in the process, under the action of the return spring 22, the distal end of the link 8 is no longer horizontally constrained by the link leading-in member 15, so that the distal end rotates to the left with the hinge point 13 as a fulcrum, the link 8 exits from the opening, and the hook portion 81 and the hook 19 are separated. The mold may then be rotated 180 ° to the next station. It will be appreciated that the return spring 22 may also be arranged on the right side of the link 8, but in this case the return spring 22 should be an extension spring, the return spring 22 being initially in an extended state. In other embodiments, the return spring 22 may also be a torsion spring.
In the embodiment, when the injection molding of the mold is completed and the core of the threaded core needs to be pulled, the first oil cylinder 3 firstly receives a signal, and the first oil cylinder 3 drives the second seat plate 2 to drive the second oil cylinder 4 and the connecting rod 8 to move by a distance of L1; after the first oil cylinder 3 moves to the right position, the second oil cylinder 4 receives signals, and the driving connecting rod 8 pushes the rack 16 to complete demoulding. And after the core pulling action of the product is finished, the second oil cylinder 4 and the first oil cylinder 3 are reset in sequence. After reset means that the tie bar 8 and the rack 16 are disengaged and the mould is then rotated 180 deg. into the next station.
The oil cylinder system of the embodiment is a two-stage oil cylinder system composed of a first oil cylinder 3 and a second oil cylinder 4, and the first oil cylinder 3 and the second oil cylinder 4 are arranged in parallel. The first oil cylinder 3 is connected with the second oil cylinder 4 through the oil cylinder connecting block 14, the first oil cylinder 3 can drive the second oil cylinder 4 to move for a stroke L1, the second oil cylinder has a stroke L2, and the total oil cylinder stroke is L1+ L2. The advantage of design like this, can practice thrift the installation space of hydro-cylinder length direction, if the hydro-cylinder of a direct installation L1+ L2 stroke, because board space is limited, will not realize. After the two-stage oil cylinder is changed, when the first oil cylinder 3 and the second oil cylinder 4 are both in the initial zero position, the space in the length direction is small, but the stroke of L1+ L2 can be achieved. It will be appreciated that a multi-stage cylinder system of three-stage cylinders, four-stage cylinders, etc. may also be provided.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The double-color mold thread core pulling device comprises a thread unscrewing device and a driving device, wherein the driving device is provided with a mechanism for driving the thread unscrewing device to complete core pulling and resetting, and the double-color mold thread core pulling device is characterized in that the thread unscrewing device and the driving device are arranged separately, the thread unscrewing device is arranged on a mold, the driving device is arranged on a machine table, and the driving device and the thread unscrewing device are also provided with structures which can enable the thread unscrewing device and the driving device to be automatically clamped and separated;
the thread unscrewing device comprises a rack, and the rack moves to drive the thread unscrewing device to loose cores and reset; the driving device comprises an oil cylinder and a connecting rod connected to the oil cylinder, and the connecting rod and the thread unscrewing device are provided with the automatic clamping and automatic disengaging structures; the connecting rod drives the rack to complete core pulling and resetting of the thread unscrewing device after being clamped and connected with the thread unscrewing device;
the extending direction of the oil cylinder is consistent with the extending direction of the rack; the automatic clamping and automatic disengaging mechanism comprises an elastic return mechanism arranged on the connecting rod, a clamping hook part arranged at the far end of the connecting rod and a clamping hook arranged on the thread unscrewing device, and the clamping hook has a shape matched with the clamping hook part; the thread unscrewing device is provided with a guide part for guiding in and out the connecting rod; in an initial state, the connecting rod is separated from the thread unscrewing device; when the oil cylinder moves forwards, the far end of the connecting rod gradually approaches to the guide part until the far end of the connecting rod contacts with the guide part, the guide part enables the connecting rod to abut against the end part of the rack in the extending direction, and the hook part is matched with the hook; the oil cylinder continues to move in the forward direction, the connecting rod pushes the rack to move, and the thread unscrewing device achieves core pulling; during the return process of the oil cylinder, the combination of the clamping hooks enables the rack to be driven by the connecting rod to return, so that the threaded core returns to the position; when the far end of the connecting rod reaches the guide part, the elastic restoring mechanism drives the connecting rod to separate the hook part from the hook.
2. The dual-color mold thread core pulling device according to claim 1, wherein the driving device further comprises a fixed seat, and the connecting rod is hinged to the fixed seat by taking the position as a hinge point at an intermediate position in the extending direction of the connecting rod; the elastic restoring mechanism is a return spring, and the return spring is positioned on the side surface of the near end of the connecting rod and matched with the connecting rod; the return spring enables the far end of the connecting rod to swing by taking the hinge point as a fulcrum in an initial state; the far end of the connecting rod is provided with the hook part formed by a hook structure; the thread unscrewing device further comprises a connecting rod leading-in piece, the connecting rod leading-in piece is provided with an edge parallel to the extending direction of the rack, and the guiding part is arranged at the proximal end of the connecting rod leading-in piece; the far end of the connecting rod is a free end when the return spring is in an initial state; in a first state, the far end of the connecting rod reaches the position of the guide part under the driving of the oil cylinder, the guide part is contacted with the side surface of the connecting rod, and the guide part applies force to the connecting rod to enable the far end of the connecting rod to swing by taking the hinge point as a fulcrum, so that the far end of the connecting rod is abutted against the rack, and the clamping hook part is matched with the clamping hook; in the second state, the far end of the connecting rod returns to the position of the guide part under the driving of the oil cylinder, the far end of the connecting rod swings under the elastic force of the return spring, the hook part and the hook are separated, the return spring returns to the initial state, and the far end of the connecting rod returns to the free end.
3. The double-color mold threaded core pulling device according to claim 2, wherein the threaded unscrewing device further comprises a hook fixing seat, the hook fixing seat is fixedly connected to the rack, and the hook is arranged on the hook fixing seat; the hook part is a structure which is perpendicular to the side surface of the connecting rod and extends outwards, and the hook extends outwards from the hook fixing seat in a direction parallel to the extending direction of the hook part and is perpendicular to the extending direction of the rack; the connecting rod guide piece is arranged in alignment with the rack, the guide part is a guide surface formed by chamfering the edge, and the chamfer is arranged opposite to the clamping hook; the guide part and the hook are separated from each other to form an opening, and the opening is provided with a space for the distal end of the connecting rod to pass through; the end part of the position of the opening corresponding to the extending direction of the rack; the hook fixing seat, the hook, the connecting rod lead-in part and the end part of the rack are enclosed together to form an open cavity; the far end of the connecting rod slides into the open cavity after contacting the guide part, and the inner side surface of the hook part is in contact fit with the hook.
4. The dual color die thread core pulling device according to claim 1, wherein the driving device is located right below the die.
5. The double-color die thread core pulling device according to claim 1, wherein the number of the oil cylinders is 2, the double-color die thread core pulling device comprises a first oil cylinder and a second oil cylinder which are arranged in parallel, and the second oil cylinder is integrally connected to the first oil cylinder.
6. The double-color die thread core pulling device according to claim 1, comprising a plurality of parallel oil cylinders, wherein each oil cylinder is connected to the previous oil cylinder in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012568.8A CN109732854B (en) | 2019-01-07 | 2019-01-07 | Double-color die thread core-pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012568.8A CN109732854B (en) | 2019-01-07 | 2019-01-07 | Double-color die thread core-pulling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109732854A CN109732854A (en) | 2019-05-10 |
| CN109732854B true CN109732854B (en) | 2021-07-16 |
Family
ID=66363671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910012568.8A Active CN109732854B (en) | 2019-01-07 | 2019-01-07 | Double-color die thread core-pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109732854B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391476A (en) * | 2008-10-23 | 2009-03-25 | 黄岩星泰塑料模具有限公司 | Composite core-pulling device for realizing single mould cavity and dual injection mould |
| CN202037813U (en) * | 2010-12-22 | 2011-11-16 | 海尔集团公司 | Rotary core-pulling mechanism for injection mould |
| CN202241826U (en) * | 2011-09-20 | 2012-05-30 | 深圳市京信通科技有限公司 | Double-color rotary table mould |
| CN205185225U (en) * | 2015-12-02 | 2016-04-27 | 上海天檀电子科技有限公司 | Injection mold screw thread device of loosing core |
| CN206796433U (en) * | 2017-03-28 | 2017-12-26 | 宁波神通模塑有限公司 | A kind of inner threaded core-pulling structure of injection mold |
| CN108839299A (en) * | 2018-08-13 | 2018-11-20 | 上海迪质特信息科技有限公司 | Double-color mold device with duplexing bit-type core Yu double-station sliding block |
| CN109016363A (en) * | 2018-06-09 | 2018-12-18 | 张强 | A kind of internal screw thread typing mechanism demoulding mechanism |
| CN208263345U (en) * | 2018-05-30 | 2018-12-21 | 华纳科技（苏州）有限公司 | A kind of automatic threads demoulding device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2145042B1 (en) * | 1971-09-09 | 1972-07-06 | HASCO-Normalien Hasenclever & Co, 5880 Lüdenscheid | Device for the production of injection molded articles, such as screw caps or the like |
| DE3228743C2 (en) * | 1982-07-31 | 1985-11-14 | Maschinenfabrik Köppern GmbH & Co KG, 4320 Hattingen | Multiple injection mold for the simultaneous production of several moldings |
-
2019
- 2019-01-07 CN CN201910012568.8A patent/CN109732854B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391476A (en) * | 2008-10-23 | 2009-03-25 | 黄岩星泰塑料模具有限公司 | Composite core-pulling device for realizing single mould cavity and dual injection mould |
| CN202037813U (en) * | 2010-12-22 | 2011-11-16 | 海尔集团公司 | Rotary core-pulling mechanism for injection mould |
| CN202241826U (en) * | 2011-09-20 | 2012-05-30 | 深圳市京信通科技有限公司 | Double-color rotary table mould |
| CN205185225U (en) * | 2015-12-02 | 2016-04-27 | 上海天檀电子科技有限公司 | Injection mold screw thread device of loosing core |
| CN206796433U (en) * | 2017-03-28 | 2017-12-26 | 宁波神通模塑有限公司 | A kind of inner threaded core-pulling structure of injection mold |
| CN208263345U (en) * | 2018-05-30 | 2018-12-21 | 华纳科技（苏州）有限公司 | A kind of automatic threads demoulding device |
| CN109016363A (en) * | 2018-06-09 | 2018-12-18 | 张强 | A kind of internal screw thread typing mechanism demoulding mechanism |
| CN108839299A (en) * | 2018-08-13 | 2018-11-20 | 上海迪质特信息科技有限公司 | Double-color mold device with duplexing bit-type core Yu double-station sliding block |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109732854A (en) | 2019-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111300758B (en) | Screw thread core-pulling mechanism and injection mold | |
| CN108527786B (en) | Injection mold and time delay core pulling mechanism thereof | |
| CN109676876B (en) | Connecting rod transmission spring needle mechanism of injection mold | |
| CN109732854B (en) | Double-color die thread core-pulling device | |
| CN109551720B (en) | Double-inner-side core-pulling mechanism of movable die driven fixed die | |
| CN219705945U (en) | Internal thread injection mold convenient to drawing of patterns | |
| CN217597734U (en) | Inner core-pulling mechanism of injection mold | |
| CN115139453A (en) | Mold insert rotating mechanism and mold | |
| CN216001294U (en) | Injection molding mold for automobile door handle | |
| CN212147402U (en) | Elastic needle ejection mechanism of injection mold | |
| CN102990875A (en) | Anticollision type side pumping slider mechanism of plastic injection mould | |
| CN208006172U (en) | One kind being used for double-colored ultralong-stroke line position core-pulling mechanism | |
| CN214773685U (en) | Ejecting flip-chip injection mold structure | |
| CN215320349U (en) | Lateral core-pulling mechanism and injection mold | |
| CN216182488U (en) | Direct-ejection driving sliding block synchronous core pulling mechanism and die | |
| CN219968683U (en) | Injection mold screw thread demoulding mechanism | |
| CN114851492A (en) | Inner core-pulling mechanism of injection mold | |
| CN218083942U (en) | Anti-retreat inclined-pushing die | |
| CN216683124U (en) | Ejecting structure of slider of injection mold back-off | |
| CN211616471U (en) | Core pulling mechanism and injection mold | |
| CN106965391B (en) | Twice-ejection control mechanism mold and using method thereof | |
| CN215703746U (en) | Special ejection mechanism for horizontal correlation | |
| CN214926783U (en) | Secondary ejection barb demoulding mechanism of mould | |
| CN210679489U (en) | Mold convenient for ejecting thread product | |
| CN116728712B (en) | Water valve executing motor shell mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |