CN116160630A - Core-pulling anti-withdrawal mechanism for front mold of seat back plate and injection mold - Google Patents
Core-pulling anti-withdrawal mechanism for front mold of seat back plate and injection mold Download PDFInfo
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- CN116160630A CN116160630A CN202310110478.9A CN202310110478A CN116160630A CN 116160630 A CN116160630 A CN 116160630A CN 202310110478 A CN202310110478 A CN 202310110478A CN 116160630 A CN116160630 A CN 116160630A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of injection molds, in particular to a seat back plate front mold core-pulling anti-back mechanism and an injection mold, wherein the seat back plate front mold core-pulling anti-back mechanism comprises a molding assembly, a motion assembly, a transmission assembly, a limiting assembly and a locking assembly, and the molding assembly comprises a core and an insert; the moving assembly comprises a front die sliding block, a front die shovel base, a rear die sliding block and a rear die shovel base; the transmission assembly comprises a front die line position oil cylinder and a rear die line position oil cylinder; the limiting assembly comprises a front die sliding block limiting block and a rear die sliding block limiting block; the locking assembly comprises a front mould shovel base anti-retreating block and an anti-rotating block; when the die is assembled, the front die shovel base anti-retreating block is abutted with the shovel base connecting block to block the front die shovel base from retreating. According to the invention, through the cooperation work among all components, the problem that the front mold slide block is retracted under the action of injection molding pressure after the front mold slide cylinder moves in place during core pulling of the front mold is solved, so that the front mold slide cylinder is retracted is further caused.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a core-pulling and anti-withdrawing mechanism of a front mold of a seat back plate and an injection mold.
Background
Along with the faster and faster social development, people have higher requirements on life quality, and furniture articles are more exquisite, so that the structure of seat parts is more complex, and because part of the structure of a product has a functional effect, the structure can not eliminate back-off by adjusting the demolding angle of the product, and a core pulling mechanism needs to be added on a mold. The core pulling mechanism can be provided with a plurality of core pulling cores which are transversely arranged or obliquely arranged in the die and used for forming side holes or grooves, the core pulling cores arranged in the mode can be subjected to larger fluid pressure in the injection molding production process, and when the fluid pressure is too large, the core pulling cores can be subjected to the problem of reversing, so that the production is unstable, and the quality of parts is affected.
The traditional injection mold lacks a self-locking mechanism and is usually locked by virtue of an oil cylinder, when a front mold of an oil cylinder in the mold directly performs core pulling, a slide insert cannot be locked by virtue of mold clamping force and can only be locked by virtue of the oil cylinder, and due to the inaccuracy of the oil cylinder, the slide is often caused to retreat under the action of injection molding pressure, so that defects such as excessive glue, beryllium front, flash and the like on a product are caused, the defects directly affect the quality of the product, and the stability and the reliability of the core pulling anti-retreating mechanism are closely related to the production quality of the product.
Disclosure of Invention
In order to solve the technical defects in the background art, the invention provides a seat back plate front mold core-pulling anti-back mechanism and an injection mold, which solve the problem that when a front mold is in core-pulling, after a front mold slide cylinder moves in place, a front mold slide block generates a back condition under the action of injection molding pressure, so that the front mold slide cylinder is caused to back.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the seat back plate front mold core-pulling anti-back mechanism comprises a molding assembly, a motion assembly, a transmission assembly, a limiting assembly and a locking assembly, wherein the molding assembly comprises a mold core and an insert; the moving assembly comprises a front die sliding block, a front die shovel base, a rear die sliding block and a rear die shovel base; the transmission assembly comprises a front die line position oil cylinder and a rear die line position oil cylinder; the limiting assembly comprises a front die sliding block limiting block and a rear die sliding block limiting block; the locking assembly comprises a front mould shovel base anti-retreating block and an anti-rotating block; the front die shovel comprises a front die shovel base, a front die shovel base connecting block, a front die shovel base and a front die shovel base, wherein a mounting groove is formed in one end of the front die shovel base, the cross section of the mounting groove is T-shaped, the top end of the mounting groove is connected with a retaining groove, a step surface is formed between the retaining groove and the mounting groove, a shovel base connecting block is movably mounted in the mounting groove, a T-shaped groove is formed in the shovel base connecting block, a piston rod of the front die slide cylinder penetrates through the T-shaped groove and is in transmission connection with the shovel base connecting block, a first inclined surface is arranged at the top end of the shovel base connecting block, a second inclined surface which is attached to the first inclined surface is arranged at the bottom end of the front die shovel base retaining block, and the top end of the front die shovel base retaining block is fixedly connected with the anti-rotation block; when the die is assembled, the front die shovel base anti-retreating block is abutted with the shovel base connecting block to block the front die shovel base from retreating.
Preferably, the two sides of the front mould shovel base are mutually inclined and contracted, wedge-shaped protrusions are arranged on the outer wall, two front mould sliding blocks are arranged, wedge-shaped grooves are formed in one sides, close to the front mould shovel base, of the front mould sliding blocks, and the front mould sliding blocks are in sliding connection with the front mould shovel base.
Preferably, one end of the front mould shovel base is also connected with a travel switch.
Preferably, the outer sides of the two front mold sliding blocks are fixedly connected with the front mold sliding block limiting block, and one end, far away from the front mold sliding block, of the front mold sliding block limiting block is connected with the rear mold sliding block.
Preferably, the back die shovel base is fixedly connected to the back die sliding block, and one side, away from the back die shovel base, of the back die sliding block is fixedly connected with the core through the insert.
Preferably, the vertical section of the rear mould sliding block is L-shaped, the rear mould slide cylinder is in transmission connection with the rear mould sliding block, a sliding groove with a T-shaped cross section is formed in the rear mould sliding block, and at least two sliding grooves are formed in the sliding groove and are distributed in parallel at the bottom end of the rear mould sliding block.
Preferably, the sliding connection has assorted T shape slider in the spout, the one end of T shape slider with back mould slider stopper fixed connection, back mould slider stopper is located back mould slider with back mould moves between the position hydro-cylinder.
An injection mold comprises a seat back plate front mold core-pulling anti-back mechanism.
In summary, the beneficial effects of the invention are as follows:
1. the seat back plate front mould core-pulling anti-back mechanism is mainly applied to an injection mould and comprises a forming assembly, a moving assembly, a transmission assembly, a limiting assembly and a locking assembly, wherein the forming assembly is used for forming with a seat back plate, the moving assembly can slide in the mould, and the transmission assembly drives the moving assembly to be combined and close and move back and forth, so that core pulling is completed; the limiting component limits the movement of the moving component under the stroke of the transmission component, and prevents the transmission component from backing under the action of injection molding pressure when moving under the action of the locking component, so that the defects of excessive glue, beryllium front, flash and the like on the product are avoided, and the product quality is improved.
2. The injection mold comprises the front mold core-pulling anti-back mechanism, and the front mold shovel base anti-back block limits the sliding of the front mold sliding block when injection molding is carried out, so that steps or broken differences of products are prevented from occurring due to overlarge injection molding pressure in the injection molding process, the product qualification rate is improved, the production cost of the products is reduced, and the product quality is improved.
Drawings
FIG. 1 is a schematic structural view of an injection mold with a front mold core-pulling anti-back mechanism of the present invention;
FIG. 2 is a cross-sectional view of an injection mold with a front mold core-pulling anti-back mechanism of the present invention;
FIG. 3 is a schematic structural view of a back plate front mold core-pulling and anti-back mechanism of the invention;
FIG. 4 is a cross-sectional view of the back plate front mold core-pulling and anti-back mechanism of the invention;
fig. 5 is an enlarged view of the structure at a in fig. 4;
FIG. 6 is a schematic view of the front mold shovel base of the present invention;
FIG. 7 is a schematic view of a front mold slide block structure according to the present invention;
FIG. 8 is a schematic view of a front mold shovel base anti-withdrawal block structure in the invention;
fig. 9 is a schematic view of a rear mold slide structure in the present invention.
Reference numerals in the drawings illustrate:
1. a molding assembly; 11. a core; 12. an insert; 2. a motion assembly; 21. a front mold slide; 211. wedge-shaped grooves; 22. a front mold shovel base; 221. a mounting groove; 222. a retaining groove; 223. a shovel base connecting block; 2231. a T-shaped groove; 2232. a first inclined surface; 224. wedge-shaped protrusions; 23. a rear mold slide; 231. a chute; 232. a T-shaped slider; 24. a rear mold shovel base; 25. a travel switch; 3. a transmission assembly; 31. a front mold line cylinder; 32. a rear mould line position oil cylinder; 4. a limit component; 41. a front mould slide block limiting block; 42. a rear mould slide block limiting block; 5. a locking assembly; 51. front mould shovel base anti-withdrawal block; 511. a second inclined surface; 52. an anti-rotation block; 6. an injection mold; 61. a plate A; 611. a main flow passage; 612. a limit groove; 62. a B plate; 621. a rear mold ejector plate; 622. a rear mold ejector pin rear plate; 623. a rear mold fixing plate; 624. and (5) a rear mould ejector pin.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.
In the actual production of the seat back plate, as the workpiece is provided with a side hole, a concave-convex step, a curved surface or a longer back-off, some products have longer back-off and cannot be pulled out by using a mechanism of an inclined guide pillar type, and some flip-chip molds or some special mold structures are inconvenient to eject by using an injection molding machine, the invention adopts a seat back plate front mold pulling and withdrawing prevention mechanism aiming at the problem, and comprises a molding assembly 1, a moving assembly 2, a transmission assembly 3, a limiting assembly 4 and a locking assembly 5, wherein the molding assembly 1 comprises a mold core 11 and an insert 12; one side structure of the core 11 has the same structure with a side hole, a concave-convex step or a curved surface on the seat back plate, so that the back mold structure of the seat back plate during molding is met, the insert 12 is fixedly inlaid between the core 11 and the moving assembly 2, the moving assembly 2 is fixedly connected with the core 11, the driving assembly 3 is utilized to drive the moving assembly 2 to draw out the core 11 during core pulling, and the problem that the core pulling can be reversed under the condition of overlarge fluid pressure is effectively prevented under the cooperation of the limiting assembly 4 and the locking assembly 5.
Specifically, the motion assembly 2 includes a front mold slide 21, a front mold shovel base 22, a rear mold slide 23, and a rear mold shovel base 24; the mounting groove 221 has been seted up to the one end of front mould shovel base 22, the mounting groove 221 transversal personally submits the T font, and the top of mounting groove 221 is connected with the backstop groove 222, form the step face between backstop groove 222 and the mounting groove 221, movable mounting has shovel base connecting block 223 in the mounting groove 221, set up T type groove 2231 on the shovel base connecting block 223, be equipped with first inclined plane 2232 on shovel base connecting block 223 top, its first inclined plane cooperatees with locking component 5, after realizing the front mould loose core, can prevent the effect of backing.
The transmission assembly 3 comprises a front die position cylinder 31 and a rear die position cylinder 32, wherein a piston rod of the front die position cylinder 31 penetrates through the T-shaped groove 2231 to be in transmission connection with the shovel base connecting block 223, and the front die position cylinder 31 and the rear die position cylinder 32 can be used for controlling the opening sequence of the injection die 6 besides controlling the sliding of the motion assembly 2. The front mold slide cylinder 31 and the rear mold slide cylinder 32 in the present invention are installed in the injection mold 6 with the following attention: 1. a support frame for fixing the front mold slide cylinder 31 and the rear mold slide cylinder 32 must be designed, and the support frame is to be positioned with the injection mold 6; 2. the piston rods of the front die slide cylinder 31 and the rear die slide cylinder 32 can be connected with the shovel base connecting block 223 by adopting a T-shaped meson; 3. the front die line cylinder 31 and the rear die line cylinder 32 are arranged on the ground side, and die feet are required to be designed to prevent the cylinders from being damaged.
The limiting assembly 4 comprises a front die slide limiting block 41 and a rear die slide limiting block 42; the front mold slide stopper 41 is used for limiting the sliding distance of the front mold slide 21, and further limiting the sliding distance of the front mold slide 21 to be too large in the sliding stroke, so that the back cannot be stopped, and the back mold slide stopper 42 is used for limiting the sliding distance of the back mold slide 23.
As shown in fig. 8, the locking assembly 5 includes a front die shovel base anti-back block 51 and an anti-rotation block 52; the bottom of the front mold shovel base anti-back block 51 is provided with a second inclined surface 511 attached to the first inclined surface 2232, and an anti-rotation block 52 is fixedly connected to the top end of the front mold shovel base anti-back block 51, and when the mold is closed, the front mold shovel base anti-back block 51 is abutted to the shovel base connecting block 223 to block the front mold shovel base 22 from backing. In addition, two locating pins are arranged at the top of the front die shovel base anti-back block 51, a reset spring is arranged in each locating pin, the anti-rotation block 52 is fixedly arranged on the front die shovel base anti-back block 51 through the locating pin, and the anti-rotation block 52 has the effect of preventing the front die shovel base anti-back block 51 from sliding out of the anti-back groove 222 in a locking state, so that the defects of multiple glue, beryllium front, flash and the like on a product are avoided, and the quality of the product is influenced.
In this embodiment, as shown in fig. 7, two sides of the front mold shovel base 22 are inclined and contracted with each other, a plurality of wedge-shaped protrusions 224 are arranged on the outer wall, two front mold sliding blocks 21 are arranged, a wedge-shaped groove 211 is formed on one side of each front mold sliding block 21, which is close to the front mold shovel base 22, and the front mold sliding blocks 21 are in sliding connection with the front mold shovel base 22; one end of the front mould shovel base 22 is also connected with a travel switch 25 for protection; the outer sides of the two front mold sliding blocks 21 are fixedly connected with limiting blocks of the front mold sliding blocks 21, and one end, far away from the front mold sliding blocks 21, of each limiting block of the front mold sliding block 21 is connected with a rear mold sliding block 23.
The front die slide cylinder 31 is utilized to drive the front die shovel base 22 to move, one end of the front die shovel base 22 and the front die slide block 21 slide in a matched manner through the wedge-shaped protrusions 224 and the wedge-shaped grooves 211, when the front die shovel base 22 slides back and forth, the front die slide blocks 21 on two sides are driven to slide, so that the front die shovel base 22 drives a die core on the front die slide blocks 21 to be separated from the back-off, meanwhile, the top end of the mounting groove 221 at the other end of the front die shovel base 22 is connected with the retaining groove 222, a step surface is formed between the retaining groove 222 and the mounting groove 221, the front die shovel base retaining block 51 is mounted at the step surface, the front die shovel base 22 is driven by the front die slide cylinder 31 to move together, the second inclined surface 511 at the bottom of the front die shovel base retaining block 51 is attached to the first inclined surface 2232 on the top end of the shovel base connecting block 223, and the front die shovel base retaining block 51 starts to move upwards when the front die slide cylinder 31 moves until the front die shovel base retaining block 51 is blocked in the retaining groove 222, and the front die shovel base retaining block 51 is prevented from moving back.
Core pulling process of the front mould: when the front die is opened, the front die slide cylinder 31 drives the front die shovel base 22 and the shovel base connecting block 223 to move, under the action of the front die shovel base 22, the front die sliding blocks 21 on two sides simultaneously move towards the center to be close, and the front die shovel base anti-back block 51 moves upwards and is clamped in the anti-back groove 222, so that the front die slide cylinder 31 is ensured not to back, a first inclined plane on the shovel base connecting block 223 and a second inclined plane on the front die shovel base anti-back block 51 are matched with each other, and the front die shovel machine is convenient to drive the front die shovel base anti-back block 51 to slide into the anti-back groove 222, thereby realizing front die core pulling.
As shown in fig. 9, the vertical section of the rear mold slide 23 is L-shaped, the rear mold slide cylinder 32 is in transmission connection with the rear mold slide 23, the rear mold slide 23 is provided with at least two slide grooves 231 with T-shaped cross sections, and the slide grooves 231 are parallel to the bottom end of the rear mold slide 23. The sliding groove 231 is slidably connected with a matched T-shaped sliding block 232, one end of the T-shaped sliding block 232 is fixedly connected with a limiting block of the rear die sliding block 23, and the limiting block of the rear die sliding block 23 is positioned between the rear die sliding block 23 and the rear die slide cylinder 32; the back die shovel base 24 is fixedly connected to the back die sliding block 23, and one side of the back die sliding block 23, which is away from the back die shovel base 24, is fixedly connected with the core 11 through the insert 12.
The core pulling process of the rear mould comprises the following steps: when the die is opened, the rear die slide cylinder 32 drives the rear die shovel base 24 to be pulled out, the rear die shovel base 24 is fixedly connected with the rear die sliding block 23, so that the rear die sliding block 23 simultaneously moves outwards, and when the rear die sliding block moves to the maximum stroke, the rear die sliding block stops moving under the action of the rear die sliding block limiting block 42, and the insert 12 is utilized to pull out the fixedly connected core 11, so that the rear die core pulling is completed.
As shown in fig. 1 and 2, an injection mold 6 comprises a seat back plate front mold core pulling and withdrawing prevention mechanism, the injection mold 6 is formed by a front mold and a rear mold, the front mold comprises an a plate 61, the rear mold comprises a B plate 62, a rear mold ejector plate 621, a rear mold ejector plate 622 and a rear mold fixing plate 623, and the rear mold ejector plate 621 is provided with a rear mold ejector pin 624; the position of the A plate 61 corresponding to the front mold shovel base anti-back block 51 is provided with a limit groove 612, the outer end of the front mold shovel base anti-back block 51 extends into the limit groove 612, mold cores are arranged in the A plate 61 and the B plate 62, when in mold closing, two mold closing molds are closed to form a mold cavity for molding an injection molding workpiece, the center of the A plate 61 is provided with a main runner 611, and the main runner 611 is communicated with the mold cavity for injection molding; molten iron is poured into the main runner 611 and flows into the mold cavity for molding, and at this time, as the outer end of the front mold shovel base anti-back block 51 is embedded in the limit groove 612 of the A plate 61 and the inner end of the front mold shovel base anti-back block is embedded in the T-shaped groove 2231 of the shovel base connecting block 223, and the shovel base connecting block 223 is fixed on the front mold shovel base 22, the front mold shovel base 22 can still not back relative to the injection mold 6 under injection molding pressure, and further the quality of processed products of the invention is ensured to be higher.
The overall working principle of the die in the invention is as follows:
when the front die is opened, the front die slide cylinder 31 is pushed out backwards, and the front die shovel base 22 moves backwards together under the drive of the front die slide cylinder 31 to finish the front die core pulling; simultaneously, the front die shovel base anti-back block 51 on the shovel base connecting block 223 moves upwards from the anti-back groove 222, when the front die slide cylinder 31 runs to the right and is blocked into the anti-back groove 222, the front die shovel base anti-back block 51 is moved to the right, so that the front die slide cylinder 31 is prevented from backing, then the AB plate 62 is opened, and at the moment, the rear die slide cylinder 32 is pushed out backwards to drive the rear die shovel base 24 and the rear die slide block 23 to be separated together, so that rear die core pulling is completed; finally, under the action of the rear mold ejector pins 624, the rear mold ejector pin plate 621 and the rear mold ejector pin rear plate 622 eject the injection molding workpiece from the mold cavity to finish demolding;
during die assembly, the rear die ejector pins 624 are reset, the rear die slide cylinders 32 compress into the die, the rear die slide blocks 23 and the rear die shovel base 24 are driven by the rear die slide cylinders 32 to move to the position of the die cavity together, the AB plate 62 is closed, the front die slide cylinders 31 push the shovel base connecting blocks 223 to move forwards, the front die slide blocks 21 positioned on two sides of the front die shovel base 22 expand and move towards two sides along the wedge-shaped bulges 224 when the front die shovel base is communicated, in addition, the front die shovel base anti-back blocks 51 in the retaining grooves 222 start to move back under the action force of the front die shovel base 22 and are embedded into the step surfaces of the retaining grooves 222 and the mounting grooves 221, meanwhile, the front die shovel base anti-back blocks 51 touch the travel switch 25, and the front die slide cylinders 31 stop driving forwards after signals are obtained, so that die assembly is completed.
The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The seat back plate front mold core-pulling anti-back mechanism comprises a molding assembly, a motion assembly, a transmission assembly, a limiting assembly and a locking assembly, and is characterized in that the molding assembly comprises a core and an insert; the moving assembly comprises a front die sliding block, a front die shovel base, a rear die sliding block and a rear die shovel base; the transmission assembly comprises a front die line position oil cylinder and a rear die line position oil cylinder; the limiting assembly comprises a front die sliding block limiting block and a rear die sliding block limiting block; the locking assembly comprises a front mould shovel base anti-retreating block and an anti-rotating block; the front die shovel comprises a front die shovel base, a front die shovel base connecting block, a front die shovel base and a front die shovel base, wherein a mounting groove is formed in one end of the front die shovel base, the cross section of the mounting groove is T-shaped, the top end of the mounting groove is connected with a retaining groove, a step surface is formed between the retaining groove and the mounting groove, a shovel base connecting block is movably mounted in the mounting groove, a T-shaped groove is formed in the shovel base connecting block, a piston rod of the front die slide cylinder penetrates through the T-shaped groove and is in transmission connection with the shovel base connecting block, a first inclined surface is arranged at the top end of the shovel base connecting block, a second inclined surface which is attached to the first inclined surface is arranged at the bottom end of the front die shovel base retaining block, and the top end of the front die shovel base retaining block is fixedly connected with the anti-rotation block; when the die is assembled, the front die shovel base anti-retreating block is abutted with the shovel base connecting block to block the front die shovel base from retreating.
2. The seat back plate front mold core pulling and withdrawing prevention mechanism according to claim 1, wherein two sides of the front mold shovel base are mutually inclined and contracted, wedge-shaped protrusions are arranged on the outer wall of the front mold shovel base, two front mold sliding blocks are arranged, wedge-shaped grooves are formed in one sides, close to the front mold shovel base, of the two front mold sliding blocks, and the front mold sliding blocks are in sliding connection with the front mold shovel base.
3. The back plate front mold core pulling and withdrawing prevention mechanism of the seat, according to claim 2, wherein one end of the front mold shovel base is further connected with a travel switch.
4. The back plate front mold core pulling and withdrawing prevention mechanism of a seat according to claim 2, wherein the outer sides of the two front mold sliding blocks are fixedly connected with the front mold sliding block limiting block, and one end of the front mold sliding block, which is far away from the front mold sliding block, is connected with the rear mold sliding block.
5. The back plate front mold core pulling and withdrawing prevention mechanism of claim 1, wherein the back mold shovel base is fixedly connected to the back mold slide block, and one side of the back mold slide block, which is away from the back mold shovel base, is fixedly connected with the core through the insert.
6. The back plate front mold core pulling and withdrawing prevention mechanism of a seat according to claim 1, wherein the vertical section of the back mold sliding block is L-shaped, the back mold slide cylinder is in transmission connection with the back mold sliding block, sliding grooves with the cross section of T-shaped are formed in the back mold sliding block, and at least two sliding grooves are formed and are distributed at the bottom ends of the back mold sliding block in parallel.
7. The back plate front mold core pulling and withdrawing prevention mechanism of the seat, according to claim 6, wherein a matched T-shaped sliding block is connected in the sliding groove in a sliding way, one end of the T-shaped sliding block is fixedly connected with the back mold sliding block limiting block, and the back mold sliding block limiting block is positioned between the back mold sliding block and the back mold line position oil cylinder.
8. An injection mold, characterized by comprising the seat back plate front mold core-pulling and back-preventing mechanism according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310110478.9A CN116160630A (en) | 2023-02-14 | 2023-02-14 | Core-pulling anti-withdrawal mechanism for front mold of seat back plate and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310110478.9A CN116160630A (en) | 2023-02-14 | 2023-02-14 | Core-pulling anti-withdrawal mechanism for front mold of seat back plate and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116160630A true CN116160630A (en) | 2023-05-26 |
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ID=86419574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310110478.9A Pending CN116160630A (en) | 2023-02-14 | 2023-02-14 | Core-pulling anti-withdrawal mechanism for front mold of seat back plate and injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116160630A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117416015A (en) * | 2023-12-18 | 2024-01-19 | 广州导新模具注塑有限公司 | Device for preventing retracting in front mold tunnel for lampshade mold |
-
2023
- 2023-02-14 CN CN202310110478.9A patent/CN116160630A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117416015A (en) * | 2023-12-18 | 2024-01-19 | 广州导新模具注塑有限公司 | Device for preventing retracting in front mold tunnel for lampshade mold |
| CN117416015B (en) * | 2023-12-18 | 2024-03-26 | 广州导新模具注塑有限公司 | Device for preventing retracting in front mold tunnel for lampshade mold |
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