CN218227709U

CN218227709U - Multi-thread synchronous core-pulling rotary thread-removing structure

Info

Publication number: CN218227709U
Application number: CN202122713338.XU
Authority: CN
Inventors: 施沫村
Original assignee: Iv Techmould Suzhou Co ltd
Current assignee: Iv Techmould Suzhou Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2023-01-06
Anticipated expiration: 2031-11-08

Abstract

The utility model provides a rotatory helicitic texture that takes off of synchronous loosing core of many screws, looses core, a set of screw core pulling sleeve, gear drive subassembly and mould including servo motor, a set of screw core pulling sleeve and gear drive subassembly all set up on the mould, servo motor looses core through gear drive subassembly and a set of screw and connects, a set of screw core pulling and a set of screw core pulling sleeve one-to-one setting to the screw is loosed core and is kept away from the one end of mould die cavity and screw core pulling sleeve threaded connection, servo motor can drive a set of screw through gear drive subassembly and loose core and be rotary motion. The utility model discloses a rotatory helicitic texture of taking off of synchronous loosing core of many screw threads utilizes servo motor to replace traditional rack gear, looses core through a set of screw thread of tradition subassembly drive and realizes automatic action to reduce the human cost, the product size who adopts this mould structure to produce is stable, and the screw thread accuracy is high, and product quality improves by a wide margin.

Description

Multi-thread synchronous core-pulling rotary thread-removing structure

Technical Field

The utility model belongs to the technical field of advanced production manufacturing and automation, specifically, relate to a rotatory helicitic texture that takes off of synchronous loosing core of many screws.

Background

Injection molding is a processing method used in mass production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification.

An injection mold is a tool for producing plastic products by injection molding, and is also a tool for giving the plastic products complete structures and precise dimensions. For products with internal thread structure, it is usually necessary to add a thread core in the mold core, and the thread structure is formed during the process of extracting the thread core.

At present, to many screw threads structure of loosing core in step mainly have: a, a sliding block drives a rack; and B, driving a rack by an oil cylinder.

The mode that the sliding block A drives the rack is as follows: the opening and closing sequence of the die needs to be strictly controlled, the mechanical mode has the advantage of stability, but the multi-thread simultaneous core pulling structure puts higher requirements on the machining of the die, the positioning accuracy of the sliding block and the die plate needs to be matched with the movement of the die, and the machining cost is increased.

B, driving a rack by an oil cylinder: the mode is simple, the processing requirement is not high, but the oil cylinder is easily influenced by multi-thread resistance to a large extent, so that a large oil cylinder is required to be used, and the oil cylinder is too large, so that only a large injection molding machine can be selected for production, the price of a produced product is high, the market has no competitive advantage, and the oil cylinder is easy to produce oil stains, thereby bringing unfavorable factors to the product quality.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a rotatory helicitic texture that takes off of multi-thread synchronization of loosing core has solved prior art, and multi-thread synchronizing shaft core perhaps relies on the import mould, causes manufacturing cost expensive, and perhaps current mould structure easily leads to the screw thread in the screw hole to tear, influences the problem of the quality of product.

The technical scheme is as follows: the utility model provides a rotatory helicitic texture that takes off of synchronous loosing core of many screws, loose core, a set of screw thread core-pulling cover, gear drive subassembly and mould including servo motor, a set of screw thread, servo motor, a set of screw thread core-pulling cover and gear drive subassembly all set up on the mould, servo motor looses core through gear drive subassembly and a set of screw thread and connects, a set of screw thread is loosed core and a set of screw thread core-pulling cover one-to-one setting to the screw thread is loosed core and is kept away from the one end and the screw thread of mould die cavity and loose core set threaded connection, servo motor can drive a set of screw thread through gear drive subassembly and loose core and be rotary motion. The utility model discloses a rotatory helicitic texture that takes off of multi-thread synchronization loosing core utilizes servo motor to replace traditional rack drive, looses core through a set of screw thread of traditional subassembly drive and realizes automatic action to reduce the human cost, the product size that adopts this mould structure to produce is stable, and the screw thread accuracy is high, makes product yield and board utilization efficiency promote by a wide margin, gains the competitive advantage for the enterprise.

Further, foretell rotatory thread structure of taking off of loosing core in step of many screw threads, be equipped with a set of screw thread uide bushing of loosing core on the mould, a set of screw thread uide bushing of loosing core and a set of screw thread one-to-one setting of loosing core, the screw thread uide bushing of loosing core is established in the outside that the screw thread was loosed core to screw thread loose core and screw thread uide bushing sliding connection. Under the guide effect of the thread core-pulling guide sleeve, the thread core-pulling is stable in rotation, deviation is avoided, and thread forming quality is affected.

Furthermore, in the above rotating thread-off structure for the multi-thread synchronous core pulling, the group of thread core pulling sleeve and the group of thread core pulling guide sleeve are arranged in parallel.

Further, foretell rotatory thread structure of taking off of synchronous loosing core of many threads, gear drive subassembly includes main drive gear, the drive gear and a set of drive gear of loosing core that two symmetries set up, main drive gear is connected with servo motor to main drive gear all meshes with the drive gear of two symmetries settings, a set of drive gear and the drive gear meshing of two symmetries settings of loosing core to a set of drive gear and a set of screw thread of loosing core one-to-one setting, the drive gear cover of loosing core is established on the outer wall that the screw thread was loosed core, and the screw thread is loosed core and drive gear fixed connection of loosing core. The main transmission gear, the two symmetrically arranged transmission gears and the group of core pulling transmission gears form a step-by-step transition structure, so that the group of core pulling transmission gears are driven to synchronously rotate through the main transmission gear, and synchronous core pulling action is further realized.

Further, foretell rotatory thread structure of taking off of loosing core in step of many screw threads, the axis that a set of screw thread was loosed core and servo motor's transmission axis set up along same direction, the drive gear of loosing core is located between screw thread core pulling sleeve and the screw thread guide sleeve of loosing core to the screw thread is loosed core, is loosed core drive gear, screw thread core pulling sleeve and the coaxial setting of screw thread core pulling guide sleeve, the screw thread is loosed core and is close to servo motor's tip and screw thread core pulling sleeve and connect.

Furthermore, the A plate of the mold is connected with a thread core-pulling limiting block.

Furthermore, according to the multi-thread synchronous core pulling rotary thread-off structure, a backward travel switch and a forward travel switch are arranged on the mold.

Further, according to the rotary thread-releasing structure for the multi-thread synchronous core pulling, the thread core pulling is connected with the retreating limiting block, and the retreating limiting block can be in contact with the retreating travel switch.

Further, according to the rotary thread-releasing structure of the multi-thread synchronous core pulling, the thread core pulling is connected with an advancing limiting block, and the advancing limiting block can be in contact with an advancing travel switch. The forward limiting block and the backward limiting block are respectively moved with the forward travel switch and the backward travel switch, and the moving distance of the thread core pulling is firstly determined.

Further, the multi-thread synchronous core pulling rotary thread-off structure is characterized in that an external thread is arranged at one end of the thread core pulling sleeve, an internal thread is arranged inside the thread core pulling sleeve, and the external thread is connected with the internal thread. Through the connection of external screw thread and internal thread for rotatory screw thread loose core can carry out the action of axle center along axial displacement.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: the rotatory helicitic texture that takes off of loosing core in step of many screw threads, utilize servo motor to replace traditional rack drive, the screw thread core is around circular motion on servo motor drive gear axle drives the slider, retreats direction design screw thread uide bushing at the screw thread core of slider, this motion has ensured that the direction of taking off the screw thread is unanimous, has guaranteed the accuracy of screw thread to can improve the precision of product screw thread, improve the yield.

Drawings

Fig. 1 is a schematic structural view of a rotary thread-off structure of the multi-thread synchronous core pulling of the present invention;

FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along the line C-C of FIG. 1 in accordance with the present invention;

fig. 4 is a schematic structural view of a mold applied to a rotary thread-off structure of the multi-thread synchronous core pulling of the present invention;

fig. 5 is the utility model discloses a local structure sketch map of rotatory thread structure is taken off in step of loosing core to many screw threads.

In the figure: the device comprises a servo motor 1, a thread core pulling 2, a backward limiting block 21, a forward limiting block 22, a thread core pulling sleeve 3, a gear transmission assembly 4, a main transmission gear 41, a transmission gear 42, a core pulling transmission gear 43, a mold 5, a thread core pulling limiting block 50, a backward travel switch 51, a forward travel switch 52 and a thread core pulling guide sleeve 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The multi-thread synchronous core pulling rotary thread-removing structure comprises a servo motor 1, a group of thread core pulling 2, a group of thread core pulling sleeves 3, a gear transmission assembly 4 and a mold 5, wherein the servo motor 1, the group of thread core pulling 2, the group of thread core pulling sleeves 3 and the gear transmission assembly 4 are all arranged on the mold 5, the servo motor 1 is connected with the group of thread core pulling 2 through the gear transmission assembly 4, the group of thread core pulling 2 and the group of thread core pulling sleeves 3 are arranged in a one-to-one correspondence manner, one end of the mold 5 cavity and the thread core pulling sleeve 3 are connected in a threaded manner, the screw core pulling 2 is far away from the mold 5, and the servo motor 1 can drive the group of thread core pulling 2 to do rotary motion through the gear transmission assembly 4. One end of the threaded loose core 2 is provided with an external thread, an internal thread is arranged inside the threaded loose core sleeve 3, and the external thread is connected with the internal thread.

Wherein, be equipped with a set of screw thread uide bushing 6 of loosing core on the mould 5, a set of screw thread uide bushing 6 of loosing core and a set of screw thread 2 one-to-one settings of loosing core, 6 covers of loosing core of screw thread uide bushing are established in the outside that 2 are loosed core to the screw thread is loosed core 2 and 6 sliding connection of screw thread uide bushing. The group of thread loose cores 2, the group of thread loose core sleeves 3 and the group of thread loose core guide sleeves 6 are arranged in parallel.

The gear transmission assembly 4 shown in fig. 2 includes a main transmission gear 41, two symmetrically arranged transmission gears 42 and a group of loose core transmission gears 43, the main transmission gear 41 is connected with the servo motor 1, the main transmission gear 41 is meshed with the two symmetrically arranged transmission gears 42, the group of loose core transmission gears 43 is arranged in one-to-one correspondence with the group of threaded loose cores 2, the loose core transmission gears 43 are sleeved on the outer wall of the threaded loose cores 2, and the threaded loose cores 2 are fixedly connected with the loose core transmission gears 43. The main transmission gear 41 and the two symmetrically arranged transmission gears 42 are located at three vertex positions of an isosceles triangle, the axis of the main transmission gear 41 is located on a central line between the two symmetrically arranged transmission gears 42, one transmission gear 42 is respectively meshed with the two loose core transmission gears 43, the axis of the transmission gear 42 is located on the central line of the two loose core transmission gears 43 meshed with the transmission gear 42, and the main transmission gear 41, the two symmetrically arranged transmission gears 42 and the group of loose core transmission gears 43 are arranged in an inverted pyramid shape.

In addition, the axis of a set of screw thread core pulling 2 and the transmission axis of servo motor 1 are arranged along the same direction, the core pulling transmission gear 43 is located between the screw thread core pulling sleeve 3 and the screw thread core pulling guide sleeve 6, the screw thread core pulling 2, the core pulling transmission gear 43, the screw thread core pulling sleeve 3 and the screw thread core pulling guide sleeve 6 are coaxially arranged, and the end part of the screw thread core pulling 2 close to the servo motor 1 is connected with the screw thread core pulling sleeve 3.

As shown in fig. 5, the mold 5 is provided with a reverse stroke switch 51 and a forward stroke switch 52. The thread loose core 2 is connected with a retreating limiting block 21, and the retreating limiting block 21 can be in contact with a retreating travel switch 51. The thread loose core 2 is connected with a forward limiting block 22, and the forward limiting block 22 can be in contact with a forward travel switch 52.

In addition, a plate A of the mold 5 is connected with a threaded core-pulling limiting block 50.

The utility model discloses a rotatory helicitic texture's that multi-thread is loosed core in step theory of operation does:

1. the injection molding machine is opened to drive the upper fixing plate, the material pushing plate and the plate A of the mold 5 to perform mold opening movement, the thread core pulling limiting block 50 is locked on the plate A and is opened along with the plate A, the thread core pulling limiting block 50 is separated from the thread core pulling 2 at the moment, and the thread core pulling 2 can normally perform movement at the moment.

2. The servo motor 1 starts to work to rotate positively to drive the transmission gear 41 to rotate, the transmission gear 41 simultaneously drives the two transmission gears 42 which are symmetrically arranged to rotate, the two transmission gears 42 which are symmetrically arranged drive the four loose core transmission gears 43 to rotate, the loose core transmission gears 43 and the threaded loose core 2 are fixed, so the threaded loose core 2 rotates, the threaded loose core sleeve 3 is the same as the thread of a product and is meshed with the threaded loose core 2, the threaded loose core 2 moves backwards, the threaded loose core guide sleeve 6 is additionally arranged for preventing rotation eccentricity in the process, and the concentricity of the threaded loose core 2 during movement is ensured.

3. The retreating limiting block 21 is fixedly connected with the thread loose core 2, the servo motor 1 rotates forwards to drive the thread loose core 2 to retreat, when the retreating limiting block 21 collides with the retreating travel switch 51, the thread loose core 2 retreats in place, the servo motor 1 stops working, and the mold ejection system ejects a product.

4. The advancing limiting block 22 is fixedly connected with the thread loose core 2, the servo motor 1 reversely rotates to drive the thread loose core 2 to advance, the advancing limiting block 22 collides with the advancing travel switch 52 to indicate that the thread loose core 2 returns to an accurate position, the servo motor 1 stops working, the mold ejection system returns, and the injection molding machine closes the mold to perform the next injection molding cycle.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a rotatory helicitic texture that takes off of synchronous loosing core of many screws which characterized in that: including servo motor (1), a set of screw thread loose core (2), a set of screw thread loose core cover (3), gear drive subassembly (4) and mould (5), servo motor (1), a set of screw thread loose core (2), a set of screw thread loose core cover (3) and gear drive subassembly (4) all set up on mould (5), servo motor (1) is loosed core (2) through gear drive subassembly (4) and a set of screw thread and is connected, a set of screw thread loose core (2) and a set of screw thread loose core cover (3) one-to-one setting to mould (5) die cavity's one end and screw thread loose core cover (3) threaded connection are kept away from in screw thread loose core (2), servo motor (1) can drive a set of screw thread through gear drive subassembly (4) and loose core (2) and be rotary motion.

2. The multi-thread synchronous core pulling rotary thread-off structure according to claim 1, characterized in that: be equipped with a set of screw thread uide bushing (6) of loosing core on mould (5), a set of screw thread uide bushing (6) of loosing core and a set of screw thread (2) one-to-one setting of loosing core, screw thread uide bushing (6) cover of loosing core is established in the outside that the screw thread was loosed core (2) to the screw thread is loosed core (2) and screw thread uide bushing (6) sliding connection.

3. The multi-thread synchronous core pulling rotary thread-off structure according to claim 2, characterized in that: the group of threaded loose cores (2), the group of threaded loose core sleeves (3) and the group of threaded loose core guide sleeves (6) are arranged in parallel.

4. The multi-thread synchronous core pulling rotary thread-off structure according to claim 1 or 2, characterized in that: gear drive subassembly (4) are including drive gear (41), drive gear (42) and a set of drive gear (43) of loosing core that two symmetries set up, drive gear (41) and servo motor (1) are connected to drive gear (41) and drive gear (42) that two symmetries set up all mesh, a set of drive gear (43) of loosing core and drive gear (42) meshing that two symmetries set up to a set of drive gear (43) of loosing core and a set of screw thread (2) one-to-one setting of loosing core, drive gear (43) of loosing core establish on the outer wall that the screw thread was loosed core (2), and screw thread (2) and drive gear (43) fixed connection of loosing core.

5. The multi-thread synchronous core pulling rotary thread-off structure according to claim 4, characterized in that: the axis of a set of screw thread loose core (2) and the transmission axis of servo motor (1) set up along same direction, loose core drive gear (43) are located between screw thread loose core cover (3) and screw thread loose core uide bushing (6) to screw thread loose core (2), loose core drive gear (43), screw thread loose core cover (3) and screw thread loose core uide bushing (6) are coaxial to be set up, the tip that screw thread loose core (2) are close to servo motor (1) is connected with screw thread loose core cover (3).

6. The multi-thread synchronous core pulling rotary thread-off structure according to claim 1, characterized in that: and a A plate of the die (5) is connected with a threaded core-pulling limiting block (50).

7. The multi-thread synchronous core pulling rotary thread-off structure according to claim 1, characterized in that: and a backward travel switch (51) and a forward travel switch (52) are arranged on the die (5).

8. The multi-thread synchronous core pulling rotary thread-off structure according to claim 7, characterized in that: the thread core pulling device is characterized in that a retreating limiting block (21) is connected to the thread core pulling body (2), and the retreating limiting block (21) can be in contact with a retreating travel switch (51).

9. The multi-thread synchronous core pulling rotary thread-off structure according to claim 7 or 8, characterized in that: the thread loose core (2) is connected with a forward limiting block (22), and the forward limiting block (22) can be in contact with a forward travel switch (52).

10. The multi-thread synchronous core pulling rotary thread-off structure according to claim 1, characterized in that: the thread core pulling device is characterized in that an external thread is arranged at one end of the thread core pulling sleeve (2), an internal thread is arranged inside the thread core pulling sleeve (3), and the external thread is connected with the internal thread.