CN215396553U - Can fix a position mould subassembly and mould of screw thread initial point - Google Patents
Can fix a position mould subassembly and mould of screw thread initial point Download PDFInfo
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- CN215396553U CN215396553U CN202121404440.5U CN202121404440U CN215396553U CN 215396553 U CN215396553 U CN 215396553U CN 202121404440 U CN202121404440 U CN 202121404440U CN 215396553 U CN215396553 U CN 215396553U
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Abstract
The utility model discloses a mould component and a mould capable of positioning a thread starting point, wherein the mould component comprises: the forming assembly comprises a forming main body and a threaded core, and the threaded core can do reciprocating linear motion along the axial direction of the threaded core; the power output end of the transmission component is connected with the threaded core so as to drive the threaded core to rotate around the axis of the threaded core; the power output end of the driving mechanism is connected with the power input end of the transmission assembly; the mold further comprises: and the limiting mechanism is used for directly or indirectly limiting the transmission component on the limiting mechanism in the molding process of the molding component. The transmission assembly is limited by the limiting mechanism, so that the threaded cores are positioned at the same position in any one-time forming process.
Description
Technical Field
The utility model relates to the field of dies, in particular to a die assembly and a die capable of positioning a thread starting point.
Background
For household appliances, particularly plastic pumps and valves in water purifiers, the threaded joints at the water inlet end and the water outlet end have installation position requirements, so that starting points of threads at the water inlet end and the water outlet end of the plastic pumps and the valves have requirements, and starting point control needs to be realized in an injection mold.
And the full-automatic injection molding at the present stage has two implementations.
One is controlled by a servo motor (namely a PLC controller-a servo driver-a servo motor-a reduction box), so that the mold structure is complex, the cost is high, and the requirement of debugging personnel is high.
One is that the die rotates by a gear and a rack (namely, an oil cylinder, the rack and a gear), the die structure occupies large space and is easy to block, the rack is long and has poor rigidity, the rack is easy to break, the later maintenance is frequent, and the die needs to be completely disassembled when the initial point is adjusted.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a die assembly and a die capable of positioning a thread starting point, wherein the die assembly limits a transmission assembly through a limiting mechanism so that a thread core is positioned at the same position in any one-step forming process.
The utility model adopts the following technical scheme:
a die assembly for locating a thread start point, comprising: the forming assembly comprises a forming main body and a threaded core, and the threaded core can do reciprocating linear motion along the axial direction of the threaded core; the power output end of the transmission component is connected with the threaded core so as to drive the threaded core to rotate around the axis of the threaded core; the power output end of the driving mechanism is connected with the power input end of the transmission assembly; the mold further comprises: and the limiting mechanism is used for directly or indirectly limiting the transmission component on the limiting mechanism in the molding process of the molding component.
Preferably, the limiting mechanism comprises: a stopper movable between a first position and a second position; when the transmission component is at the first position, the transmission component is directly or indirectly limited on the limiting block; when the transmission assembly is at the second position, the transmission assembly is separated from the limit of the limit block.
Preferably, the limiting mechanism further comprises: the guide post penetrates through the limiting block and is positioned at one end of the die mounting platform; the reset piece is arranged between the limiting block and the die mounting platform.
Preferably, the limiting block is respectively provided with a limiting surface, a supporting surface and a guiding surface.
Preferably, a transmission shaft of the transmission assembly is provided with a cylindrical limiting body, and the surface of the limiting body is provided with a notch which is formed by: the limiting abutting surface abuts against the limiting surface to realize limiting in the forming process of the forming assembly; the extrusion surface is matched with the guide surface so as to push the limiting block to move from the first position to the second position by utilizing the rotation of the limiting body.
Preferably, the transmission assembly is provided with notches on the surface thereof to form: the limiting abutting surface abuts against the limiting surface to realize limiting in the forming process of the forming assembly; the extrusion surface is matched with the guide surface so as to push the limiting block to move from the first position to the second position by utilizing the rotation of the limiting body.
Preferably, the transmission assembly comprises: the power input end of the first transmission mechanism is connected with the power output end of the driving mechanism; and the power input end of the second transmission mechanism is connected with the power output end of the first transmission mechanism, and the power output end of the second transmission mechanism is connected with the threaded core.
Preferably, the second transmission mechanism includes: a mounting seat; the first gear is rotatably arranged on the mounting seat; the second gear and the first gear are positioned on the same rotating shaft and are meshed with the power output end of the first transmission mechanism; the third gear is rotatably arranged on the mounting seat, is coaxially arranged with the thread core and can synchronously reciprocate linearly relative to the mounting seat along the axial direction with the thread core; the first gear is directly or indirectly meshed with the third gear.
Preferably, the first gear is capable of reciprocating linear motion relative to the mounting base along an axial direction thereof, and a stopper for restricting the linear motion of the first gear along the axial direction thereof is provided on the mounting base.
A mould capable of positioning a thread starting point comprises an upper mould and a lower mould which are matched with each other, wherein the lower mould is provided with the mould assembly, the lower mould is provided with a sliding groove, a guide block capable of synchronously moving with a thread core is arranged in the sliding groove, and an inclined guide groove is formed in the guide block; and an inclined guide post matched with the inclined guide groove is arranged at the corresponding position on the upper die.
Compared with the prior art, the utility model has the following advantages:
1. the utility model leads the thread core to be positioned at the same position in any one-time forming process through the limit of the limit mechanism to the transmission assembly.
2. Compared with a servo motor controlled mold, the utility model has the advantages of simple structure, low cost and convenient operation.
3. Compared with a mold with a gear rack rotating, the gear rack rotating mold has the advantages that the whole structure of the transmission mechanism and the limiting mechanism is small, and the size of the mold cannot be influenced when the gear rack rotating mold is assembled together.
4. The utility model can also disassemble the limiting piece and rotate the first gear to adjust the starting position of the thread core, so as to adjust the starting point of the thread of the injection molding piece.
Drawings
Fig. 1 is a schematic structural view of a mold assembly.
Fig. 2 is a schematic structural view of the second position.
Fig. 3 is a partially enlarged view of a portion a of fig. 2.
Fig. 4 is an enlarged view of the structure in the first state.
Fig. 5 is a partially enlarged view of portion B of fig. 4.
Fig. 6 is a schematic structural diagram of a limiting block.
Fig. 7 is a schematic structural view of the stopper.
Fig. 8 is a schematic structural view of the lower die.
Fig. 9 is a schematic structural view of a released state of the mold.
FIG. 10 is a sectional view showing a state where the films are laminated.
Fig. 11 is a sectional view in a mold-released state.
In the figure, a forming component 1, a forming main body 1-1, a threaded core 1-2, a transmission component 2, a first transmission mechanism 2-1, a second transmission mechanism 2-2, a mounting seat 2-2-1, a first gear 2-2-2, a second gear 2-2-3, a third gear 2-2-4, a limiting part 2-2-5, a driving mechanism 3, a limiting mechanism 4, a limiting block 4-1, a limiting surface 4-1-1, a supporting surface 4-1-2, a guiding surface 4-1-3, a guiding column 4-2, a resetting part 4-3, a limiting body 5, a limiting abutting surface 5-1, an extrusion surface 5-2, an upper die 6, a lower die 7, a sliding chute 8, a guide block 9, an inclined guide groove 10 and an inclined guide column 11 are arranged in the forming component.
Detailed Description
In order to facilitate understanding of the technical solutions of the present invention, the following detailed description is made with reference to the accompanying drawings and specific embodiments.
Example 1
1-7, a die assembly for locating a thread start point, comprising:
the forming component 1 comprises a forming main body 1-1 and a threaded core 1-2, wherein the threaded core 1-2 can do reciprocating linear motion along the axial direction of the threaded core; the molding assembly 1 is used for molding a product, in the embodiment, the product is a pump head cover, and the specific molding mode is injection molding.
The power output end of the transmission component 2 is connected with the threaded core 1-2 so as to drive the threaded core 1-2 to rotate around the axis of the transmission component;
the power output end of the driving mechanism 3 is connected with the power input end of the transmission component 2;
the mold assembly further comprises:
the limiting mechanism 4 is used for indirectly limiting the transmission component 2 on the limiting mechanism 4 in the molding process of the molding component 1; namely, in the injection molding process of the pump head cover, the transmission assembly 2 is always indirectly limited on the limiting mechanism 4. The transmission component 2 is limited by the limiting mechanism 4, so that the thread cores 1-2 are located at the same position in any one-time forming process, and the thread starting point of each injection molding part is located at the same position.
Preferably, the limiting mechanism 4 includes:
a stopper 4-1 movable between a first position and a second position; when the transmission component 2 is located at the first position, the transmission component is indirectly limited at the limiting block 4-1; when the mold is in the second position, the transmission component 2 is separated from the limit of the limit block 4-1, and the transmission component 2 can continuously rotate to drive the thread core 1-2 to continuously rotate for demolding.
The guide column 4-2 penetrates through the limiting block 4-1 to be arranged, one end of the guide column is positioned on the die mounting platform and used for guiding the limiting block 4-1, and meanwhile, the head of the guide column 4-2 is large in size so that the limiting block 4-1 can be prevented from being separated from the die mounting platform;
the reset piece 4-3 is arranged between the limiting block 4-1 and the die mounting platform, and in the embodiment, a reset spring is preferred.
In this example, the limiting block 4-1 is respectively formed with a limiting surface 4-1-1, a supporting surface 4-1-2 and a guiding surface 4-1-3. In this embodiment, the limiting block 4-1 is provided with a limiting protrusion, the limiting surface 4-1-1 is a vertical surface of the limiting protrusion, the supporting surface 4-1-2 is a horizontal surface of the limiting protrusion, and the guiding surface 4-1-3 is an inclined surface of the limiting protrusion. Install the spacing body 5 of cylinder shape on transmission assembly 2's the transmission shaft, this spacing body surface is seted up the breach and is formed respectively: the limiting abutting surface 5-1 abuts against the limiting surface 4-1-1 to realize limiting in the forming process of the forming assembly 1; and the extrusion surface 5-2 is matched with the guide surface 4-1-3 so as to push the limiting block 4-1 to move from the first position to the second position by utilizing the rotation of the limiting body 5. Wherein, the spacing body 5 passes through key fit or interference fit with the transmission shaft of transmission assembly 2.
Specifically, as shown in fig. 4 and 5, when the limiting block 4-1 is at the first position, the limiting abutting surface 5-1 of the limiting body 5 abuts against the limiting surface 4-1-1, and the supporting surface 4-1-2 abuts against the limiting body 5 under the elastic action of the reset member 4-3; then, the driving mechanism 3 rotates reversely, the limiting body 5 rotates reversely (clockwise rotation in the direction shown in fig. 5), the extrusion surface 5-2 extrudes the guide surface 4-1-3 to cause the limiting block 4-1 to move downwards to push the limiting block 4-1 to move from the first position to the second position shown in fig. 2 and 3, and the limiting body 5 can rotate reversely continuously due to the matching of the limiting block 4-1 and the limiting body 5 until the threaded core 1-2 is driven to be completely separated from the injection molding part, so that the demolding is completed.
The transmission assembly 2 comprises:
the power input end of the first transmission mechanism 2-1 is connected with the power output end of the driving mechanism 3;
and the power input end of the second transmission mechanism 2-2 is connected with the power output end of the first transmission mechanism 2-1, and the power output end of the second transmission mechanism is connected with the threaded core 1-2. The method specifically comprises the following steps:
the mounting seats 2-2-1 are symmetrically arranged on the mounting platform of the lower die;
the first gear 2-2-2 is rotatably arranged on the mounting seat 2-2-1;
the second gear 2-2-3 and the first gear 2-2-2 are positioned on the same rotating shaft and are meshed with the power output end of the first transmission mechanism 2-1;
the third gear 2-2-4 is rotatably arranged on the mounting seat 2-2-1, is coaxially arranged with the threaded core 1-2, and can synchronously reciprocate linearly relative to the mounting seat 2-2-1 along the axial direction with the threaded core 1-2;
the first gear 2-2-2 is directly or indirectly meshed with the third gear 2-2-4, and the first gear 2-2-2 is meshed with the third gear 2-2-4.
In this embodiment, the first transmission mechanism 2-1 is a bevel gear, the second gear 2-2-3 is a bevel gear, the first transmission mechanism 2-1 is in meshing transmission with the second gear 2-2-3, the first gear 2-2-2 is a cylindrical gear rotating coaxially with the second gear 2-2-3, and the third gear 2-2-4 is a cylindrical gear coaxial with the threaded core 1-2; when a transmission gear is arranged between the first gear 2-2-2 and the third gear 2-2-4, the first gear 2-2-2 is indirectly meshed with the third gear 2-2-4; or the first gear 2-2-2 and the third gear 2-2-4 are directly meshed (i.e. there is no transmission gear).
The first gear 2-2-2 can make reciprocating linear motion along the axial direction relative to the mounting seat 2-2-1, and a limiting piece 2-2-5 used for limiting the first gear 2-2-2 to make linear motion along the axial direction is arranged on the mounting seat 2-2-1. When the thread starting point of the injection molding part needs to be adjusted, the limiting piece 2-2-5 is taken down, the first gear 2-2-2 is pulled out for a certain distance to be disengaged from the first transmission mechanism 2-1, then the first gear 2-2-2 is rotated, and the thread core 1-2 can be rotated through the third gear 2-2-4 due to the fact that the first gear 2-2-2 is engaged with the third gear 2-2-4, and therefore the thread starting point of the injection molding part is adjusted.
As shown in fig. 8-11, the mold for positioning the starting point of the thread in the present embodiment includes an upper mold 6 and a lower mold 7 which are engaged with each other, the mold assembly is disposed on the lower mold 7, and a slide groove 8 is disposed on the lower mold 7, a guide block 9 which can move synchronously with the thread core 1-2 is disposed in the slide groove, and an inclined guide groove 10 is disposed on the guide block; and an inclined guide post 11 matched with the inclined guide groove 10 is arranged at a corresponding position on the upper die 6.
When the injection molding machine is used, the initial position is in a mold closing state, at the moment, the inclined guide post 11 is inserted into the inclined guide groove 10, the limiting block 4-1 is located at the first position, the limiting abutting surface 5-1 of the limiting body 5 abuts against the limiting surface 4-1-1, the threaded core 1-2 is located at the initial position of injection molding, the driving mechanism 3 stops rotating, and then the injection molding process is carried out; after the injection molding is finished, demolding is carried out; during demoulding, the driving mechanism 3 rotates reversely (clockwise rotation in the direction shown in fig. 5), the limiting block 4-1 moves downwards due to the fact that the limiting block 5 extrudes the limiting block 4-1, the limiting block 5 can continuously rotate, then the transmission assembly 2 is driven to continuously move, the transmission assembly 2 drives the threaded core 1-2 to continuously rotate and reversely unscrew from the injection molding piece through thread matching, meanwhile, the upper die 6 moves upwards, the guide block 9 is forced to synchronously move outwards along with the threaded core 1-2 by utilizing the matching effect of the inclined guide post 11 and the inclined guide groove 10, the resistance which needs to be overcome when the threaded core 1-2 moves outwards can be avoided by completely utilizing the thread matching of the threaded core 1-2 and the injection molding piece, and the completeness of the internal thread of the injection molding piece is ensured. In the whole demoulding process, the demoulding process of the inclined guide post 11 and the horizontal movement of the guide block 9 are synchronous movement. After demolding is finished, when mold closing is carried out, the upper mold 6 moves downwards, the end part of the inclined guide post 11 is inserted into the inclined guide groove 10, the upper mold 6 continues to move downwards, and the guide block 9 moves inwards to drive the threaded core 1-2 to move inwards (towards the direction of the forming main body) to return to the initial position through the matching of the inclined guide post 11 and the inclined guide groove 10. The driving mechanism 3 rotates forward (anticlockwise rotation in the direction shown in fig. 5) until the limiting abutting surface 5-1 of the limiting body 5 abuts against the limiting surface 4-1-1, so that the consistency of the starting points of the threads is ensured.
Within the optional scope of the skilled person, the limiting body 5 may also be mounted on the connecting shaft of the third gear 2-2-4 and the threaded core 1-2, and the limiting mechanism 4 is mounted at a corresponding position on the mounting platform of the lower die.
Example 2
The last integrated into one piece of drive assembly 2 has spacing portion, and spacing portion surface is seted up the breach and is formed respectively:
the limiting abutting surface 5-1 abuts against the limiting surface 4-1-1 to realize limiting in the forming process of the forming assembly 1; and the extrusion surface 5-2 is matched with the guide surface 4-1-3 so as to push the limiting block 4-1 to move from the first position to the second position by utilizing the rotation of the limiting part.
The above is only a preferred embodiment of the present invention, and the scope of the present invention is defined by the appended claims, and several modifications and amendments made by those skilled in the art without departing from the spirit and scope of the present invention should be construed as the scope of the present invention.
Claims (10)
1. A die assembly for locating a thread start point, comprising:
the molding assembly (1) comprises a molding main body (1-1) and a threaded core (1-2), wherein the threaded core (1-2) can do reciprocating linear motion along the axial direction of the threaded core;
the power output end of the transmission component (2) is connected with the threaded core (1-2) so as to drive the threaded core (1-2) to rotate around the axis of the threaded core;
the power output end of the driving mechanism (3) is connected with the power input end of the transmission assembly (2);
characterized in that, the mould still includes:
and the limiting mechanism (4) is used for limiting the transmission component (2) in the limiting mechanism (4) directly or indirectly in the forming process of the forming component (1).
2. A die assembly for locating a thread start point according to claim 1, wherein the stop mechanism (4) comprises:
a stopper (4-1) movable between a first position and a second position; when the transmission component (2) is at the first position, the transmission component is directly or indirectly limited at the limiting block (4-1); when the transmission component (2) is at the second position, the transmission component is separated from the limit of the limit block (4-1).
3. A die assembly for locating a thread start point according to claim 2, wherein the stop mechanism (4) further comprises:
the guide post (4-2) penetrates through the limiting block (4-1) to be arranged, and one end of the guide post is positioned on the die mounting platform;
the resetting piece (4-3) is arranged between the limiting block (4-1) and the die mounting platform.
4. The die assembly of claim 2, wherein the die assembly is configured to position the thread initiation point: the limiting block (4-1) is respectively provided with a limiting surface (4-1-1), a supporting surface (4-1-2) and a guiding surface (4-1-3).
5. The mold assembly for locating the thread start point according to claim 4, wherein the transmission shaft of the transmission assembly (2) is provided with a cylindrical limiting body (5), and the surface of the limiting body is notched to form:
the limiting abutting surface (5-1) abuts against the limiting surface (4-1-1) to realize limiting in the forming process of the forming assembly (1);
and the extrusion surface (5-2) is matched with the guide surface (4-1-3) so as to push the limiting block (4-1) to move from the first position to the second position by utilizing the rotation of the limiting body (5).
6. A die assembly for locating a thread start point according to claim 4, wherein the surface of the driving assembly (2) is notched to form:
the limiting abutting surface (5-1) abuts against the limiting surface (4-1-1) to realize limiting in the forming process of the forming assembly (1);
and the extrusion surface (5-2) is matched with the guide surface (4-1-3) so as to push the limiting block (4-1) to move from the first position to the second position by utilizing the rotation of the limiting body (5).
7. A die assembly for locating a thread start point according to claim 1, wherein the transmission assembly (2) comprises:
the power input end of the first transmission mechanism (2-1) is connected with the power output end of the driving mechanism (3);
and the power input end of the second transmission mechanism (2-2) is connected with the power output end of the first transmission mechanism (2-1), and the power output end of the second transmission mechanism is connected with the threaded core (1-2).
8. A die assembly for locating a thread start point according to claim 7, wherein the second transmission mechanism (2-2) comprises:
a mounting seat (2-2-1);
the first gear (2-2-2) is rotatably arranged on the mounting seat (2-2-1);
the second gear (2-2-3) and the first gear (2-2-2) are positioned on the same rotating shaft and are meshed with the power output end of the first transmission mechanism (2-1);
the third gear (2-2-4) is rotatably arranged on the mounting seat (2-2-1), is coaxially arranged with the threaded core (1-2), and can synchronously move in a reciprocating linear manner relative to the mounting seat (2-2-1) along the axial direction with the threaded core (1-2);
the first gear (2-2-2) is directly or indirectly meshed with the third gear (2-2-4).
9. A die assembly for locating a thread start point according to claim 8, wherein the first gear (2-2-2) is capable of reciprocating linear motion relative to the mounting block (2-2-1) in the axial direction thereof, and a stopper (2-2-5) for restricting the linear motion of the first gear (2-2-2) in the axial direction thereof is provided on the mounting block (2-2-1).
10. A mould capable of positioning a thread starting point comprises an upper mould (6) and a lower mould (7) which are matched with each other, and is characterized in that: the lower die (7) is provided with a die assembly as claimed in any one of claims 1 to 8, and the lower die (7) is provided with a sliding groove (8) which is internally provided with a guide block (9) capable of synchronously moving with the threaded core (1-2), and the guide block is provided with an inclined guide groove (10); and an inclined guide post (11) matched with the inclined guide groove (10) is arranged at the corresponding position on the upper die (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121404440.5U CN215396553U (en) | 2021-06-23 | 2021-06-23 | Can fix a position mould subassembly and mould of screw thread initial point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121404440.5U CN215396553U (en) | 2021-06-23 | 2021-06-23 | Can fix a position mould subassembly and mould of screw thread initial point |
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| Publication Number | Publication Date |
|---|---|
| CN215396553U true CN215396553U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121404440.5U Active CN215396553U (en) | 2021-06-23 | 2021-06-23 | Can fix a position mould subassembly and mould of screw thread initial point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215396553U (en) |
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2021
- 2021-06-23 CN CN202121404440.5U patent/CN215396553U/en active Active
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