CN218256523U - Front and back die inclined core-pulling mechanism of back-off die - Google Patents
Front and back die inclined core-pulling mechanism of back-off die Download PDFInfo
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- CN218256523U CN218256523U CN202222458089.9U CN202222458089U CN218256523U CN 218256523 U CN218256523 U CN 218256523U CN 202222458089 U CN202222458089 U CN 202222458089U CN 218256523 U CN218256523 U CN 218256523U
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Abstract
The utility model discloses a front and back mould inclined core pulling mechanism of an inverted buckle mould, which comprises a front mould plate, a back mould plate, two front mould inclined core pulling main shafts, two back mould inclined core pulling main shafts and four core pulling oil cylinders, wherein the four core pulling oil cylinders are respectively arranged at two sides of the front mould plate and the back mould plate through oil cylinder fixing plates symmetrically; two front mould inclined drawing main shafts are movably arranged on two sides of the front mould core in an inclined downward mode, one end of each front mould inclined drawing main shaft is in sliding fit with a sliding groove of the core drawing seat, and the other end of each front mould inclined drawing main shaft extends to a cavity of the front mould core; two rear die inclined drawing main shafts are obliquely and upwards movably arranged at two sides of the rear die core, one end of each rear die inclined drawing main shaft is in sliding fit with a sliding groove of the core drawing seat, and the other end of each rear die inclined drawing main shaft extends to a cavity of the rear die core. The utility model discloses compact structure, it is more simple and convenient to operate, can realize mass production.
Description
Technical Field
The utility model relates to a mould field, in particular to mechanism of loosing core to one side of front and back mould of back-off mould.
Background
The existing die is designed with a back-off structure, and the back-off structure has multiple back-off positions and wide distribution range. The demoulding mode of the existing back-off mould is as follows: the front mould is reversely buckled with a front mould sliding block or a front mould inclined top, and the rear mould is reversely buckled with a rear mould sliding block or a rear mould inclined top, but the demoulding mode cannot ensure normal core-pulling demoulding due to the abnormal and complicated mould structure, and the condition of subsequent stable production is difficult to ensure; and meanwhile, the manufacturing cost of the die and the processing and matching difficulty are greatly increased. Moreover, when a plurality of core-pulling mechanisms have the requirement of opening and closing the mold sequence, the error is easy to occur. For example, the hot runner mold is mainly used for processing products with complex modeling structures, the back-off structure of the hot runner mold is more complex, and the hot runner mold is larger, the mold plate is relatively thick and heavy and the demolding operation of the hot runner mold is more complex because the hot runner mold reduces the damage degree to a hot nozzle in order to ensure the precision of a hot runner system.
Disclosure of Invention
The utility model aims at providing a mechanism of loosing core to one side of front and back mould of simple structure's back-off mould to the not enough of prior art, avoid the front mould part to make the template as far as possible and separately loose core the action, realize batch production.
The technical scheme of the utility model is that:
the front and rear die inclined core pulling mechanism of the back-off die comprises a front die plate and a rear die plate, wherein a front die core is arranged on the front die plate, a rear die core is arranged on the rear die plate, the front die inclined core pulling mechanism further comprises two front die inclined core pulling main shafts, two rear die inclined core pulling main shafts and four core pulling oil cylinders, the four core pulling oil cylinders are symmetrically arranged on two sides of the front die plate and the rear die plate respectively through oil cylinder fixing plates, a core pulling seat is arranged on a piston rod of each core pulling oil cylinder through a connecting block, and each core pulling seat is provided with an inclined chute; the two front mold inclined drawing main shafts are movably arranged on two sides of the front mold core in an inclined downward mode, one end of each front mold inclined drawing main shaft is in sliding fit with a sliding groove of the core drawing seat, and the other end of each front mold inclined drawing main shaft extends to a cavity of the front mold core; and two rear die inclined drawing main shafts are obliquely and upwards movably arranged at two sides of the rear die core, one end of each rear die inclined drawing main shaft is in sliding fit with the sliding groove of the core drawing seat, and the other end of each rear die inclined drawing main shaft extends to the cavity of the rear die core.
Furthermore, the connecting block is a T-shaped connecting block, a notch used for connecting the T-shaped connecting block is formed in the core pulling seat, grooves are formed in two side walls of the notch, and protrusions on two sides of the T-shaped connecting block are matched with the grooves of the core pulling seat respectively.
Furthermore, the core-pulling oil cylinder is a thin oil cylinder.
The core-pulling oil cylinder is characterized by further comprising four base plates, wherein each base plate is provided with a limit stop used for limiting the moving distance of the core-pulling oil cylinder piston rod, and the base plates are respectively fixed on the front template and the rear template through bolts.
Furthermore, the cavity ends of the front mold inclined drawing main shaft and the rear mold inclined drawing main shaft are respectively provided with an arc surface matched with the molding glue position.
Furthermore, the core pulling seat ends of the front mold inclined core pulling main shaft and the rear mold inclined core pulling main shaft are provided with bosses which are in sliding fit with sliding grooves of the core pulling seat.
Adopt above-mentioned technical scheme to have following beneficial effect:
the utility model has the advantages of simple structure, utilize the front mould that the hydro-cylinder of loosing core drove the slope to set up to take out the main shaft to one side and back mould to take out the main shaft to one side and loose core from two upper and lower directions, the product in the position is glued to the ejecting shaping of being convenient for. Compared with the existing demoulding mode of the back-off mould, the mould structure is optimized in a limited space, the mould structure is simplified to the maximum extent, the operation is simpler and more convenient, and the effect is better. Meanwhile, the service life of the die is prolonged, and batch stable production is realized.
The following description is further described in conjunction with the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic structural view in embodiment 1;
fig. 2 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
In the attached drawing, 1 is a front template, 2 is a front mold core, 3 is a front mold inclined drawing main shaft, 4 is a rear template, 5 is a rear mold core, 6 is a rear mold inclined drawing main shaft, 7 is a core drawing oil cylinder, 8 is a connecting block, 9 is a core drawing seat, 10 is a cushion plate, 11 is a limit stop, 12 is an oil cylinder fixing plate, and 13 is a molding glue position.
Detailed Description
Specific example 1:
referring to fig. 1 and 2, the front and rear mold inclined core pulling mechanism of the back-off mold comprises a front mold plate 1, a rear mold plate 4, a front mold core 2, a rear mold core 5, two front mold inclined pulling main shafts 3, two rear mold inclined pulling main shafts 6 and four core pulling oil cylinders 7, wherein the four core pulling oil cylinders 7 are symmetrically arranged on two sides of the front mold plate 1 and the rear mold plate 4 through oil cylinder fixing plates 12 respectively, and the core pulling oil cylinders 7 are thin oil cylinders. A core pulling seat 9 is installed on a piston rod of each core pulling oil cylinder 7 through a connecting block 8, the connecting block 8 is a T-shaped connecting block, a notch used for connecting the T-shaped connecting block is formed in the core pulling seat 9, grooves are formed in two side walls of the notch, and protrusions on two sides of the T-shaped connecting block are matched with the grooves of the core pulling seat 9 to be connected. Possibly, the connecting block 8 and the core pulling seat 9 are in an integrally formed structure. Each core-pulling seat 9 is provided with an inclined chute, in the embodiment: the core-pulling seat 9 is of a triangular structure, and the inclined chute of the core-pulling seat 9 is of a step structure.
The front mold comprises a front mold plate 1 and is characterized in that a front mold core 2 is arranged on the front mold plate 1, first inclined mounting holes are formed in two sides of the front mold core 2 respectively, and the inclination angle of each first mounting hole is the same as the back-off demolding angle of the front mold. The front mold inclined drawing main shaft 3 is movably installed in the first installation in an inclined downward mode, one end of the front mold inclined drawing main shaft 3 is in sliding fit with a sliding groove of the core drawing seat 9, and the other end of the front mold inclined drawing main shaft extends to a cavity of the front mold core 2; the die cavity end of each front die inclined spindle 3 is provided with a cambered surface matched with a molding glue position, and the core-pulling seat end of the front die inclined spindle 3 is provided with a boss matched with the sliding groove of the core-pulling seat 9 in a sliding manner.
The rear die plate 4 is provided with a rear die core 5, two sides of the rear die core 5 are respectively provided with inclined second mounting holes, and the inclination angle of each second mounting hole is the same as the back-off demoulding angle of the rear die. The rear die inclined spindle 6 is movably mounted in the second mounting in an inclined upward mode, one end of the rear die inclined spindle 6 is in sliding fit with the sliding groove of the core pulling seat 9, the other end of the rear die inclined spindle extends to the cavity of the rear die core 5, a boss used for being in sliding fit with the sliding groove of the core pulling seat is arranged at the core pulling seat end of each rear die inclined spindle 6, and a cambered surface used for being matched with the molding glue phase is arranged at the cavity end of the rear die inclined spindle 6. The core pulling oil cylinder 7 drives the core pulling seat 9 to move back and forth, the core pulling seat 9 moves to drive the front mold inclined pulling main shaft 3 and the rear mold inclined pulling main shaft 6 to move up and down, and therefore the front mold inclined pulling main shaft 3 and the rear mold inclined pulling main shaft 6 can eject products in the molding glue position 13.
Possibly, the core-pulling mechanism further comprises four base plates 10, each base plate 10 is provided with a limit stop 11 for limiting the moving distance of the core-pulling oil cylinder piston rod, and the base plates 10 are respectively fixed on the front template 1 and the rear template 4 through bolts. The piston rod of the core-pulling oil cylinder extends and retracts by the limit stop 11.
The utility model discloses a theory of operation: the front and rear molds are cut into movable parts at the undercut positions where demolding cannot be performed in the horizontal movement direction, and the core-pulling oil cylinder of the front and rear mold inclined core-pulling mechanism is utilized to drive the front mold inclined core-pulling main shaft and the rear mold inclined core-pulling main shaft to perform inclined movement along the undercut demolding direction, so that the purpose of demolding is achieved. The advantage that the thin oil cylinder occupies small space is utilized, the oil cylinder driving force replaces the mechanical driving force generated by the existing template separation to complete the core pulling action, and the core pulling action is reset at a set time.
The using method comprises the following steps: before the front mould and the rear mould are opened, the core pulling action is firstly completed by the front mould and the rear mould inclined core pulling mechanism; then, when the front mold and the rear mold are normally opened, the rear mold sliding block completes the core pulling action in the horizontal direction by using the mechanical driving force of mold opening to eject the product, so that the product is taken out; and finally, after the workpiece is taken, the mold is closed in place, and then the inclined core pulling reset is carried out, so that the risk of mold collision can be avoided by adopting the sequence.
Claims (6)
1. The utility model provides a mechanism of loosing core to one side of front and back mould of back-off mould, includes front bezel and back template, be equipped with the front mould core on the front bezel, be equipped with back mould core, its characterized in that on the back template: the core pulling mechanism is characterized by further comprising two front mold inclined core pulling main shafts, two rear mold inclined core pulling main shafts and four core pulling oil cylinders, wherein the four core pulling oil cylinders are symmetrically arranged on two sides of the front mold plate and the rear mold plate respectively through oil cylinder fixing plates, a core pulling seat is mounted on a piston rod of each core pulling oil cylinder through a connecting block, and each core pulling seat is provided with an inclined sliding groove; the two front mold inclined drawing main shafts are movably arranged on two sides of the front mold core in an inclined downward mode, one end of each front mold inclined drawing main shaft is in sliding fit with a sliding groove of the core drawing seat, and the other end of each front mold inclined drawing main shaft extends to a cavity of the front mold core; and two rear die inclined drawing main shafts are obliquely and upwards movably arranged at two sides of the rear die core, one end of each rear die inclined drawing main shaft is in sliding fit with the sliding groove of the core drawing seat, and the other end of each rear die inclined drawing main shaft extends to the cavity of the rear die core.
2. The front and rear die inclined core-pulling mechanism of the back-off die according to claim 1, characterized in that: the core-pulling seat is characterized in that the connecting block is a T-shaped connecting block, a notch used for connecting the T-shaped connecting block is formed in the core-pulling seat, grooves are formed in two side walls of the notch, and protrusions on two sides of the T-shaped connecting block are matched with the grooves of the core-pulling seat respectively.
3. The front and rear die inclined core-pulling mechanism of the back-off die according to claim 1 or 2, characterized in that: the core-pulling oil cylinder is a thin oil cylinder.
4. The front and rear die inclined core-pulling mechanism of the back-off die according to claim 1, characterized in that: the core-pulling oil cylinder is characterized by further comprising four base plates, wherein limit stop blocks used for limiting the moving distance of the piston rod of the core-pulling oil cylinder are arranged on the base plates, and the base plates are fixed on the front template and the rear template through bolts respectively.
5. The front and rear die inclined core-pulling mechanism of the back-off die according to claim 1, characterized in that: and the cavity ends of the front mould inclined drawing main shaft and the rear mould inclined drawing main shaft are respectively provided with a cambered surface matched with a molding glue position.
6. The front and rear die inclined core-pulling mechanism of the back-off die as claimed in claim 1 or 5, wherein: and the core-pulling seat ends of the front mould inclined core-pulling main shaft and the rear mould inclined core-pulling main shaft are provided with bosses which are in sliding fit with the sliding grooves of the core-pulling seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222458089.9U CN218256523U (en) | 2022-09-16 | 2022-09-16 | Front and back die inclined core-pulling mechanism of back-off die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222458089.9U CN218256523U (en) | 2022-09-16 | 2022-09-16 | Front and back die inclined core-pulling mechanism of back-off die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218256523U true CN218256523U (en) | 2023-01-10 |
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ID=84713550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222458089.9U Active CN218256523U (en) | 2022-09-16 | 2022-09-16 | Front and back die inclined core-pulling mechanism of back-off die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218256523U (en) |
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2022
- 2022-09-16 CN CN202222458089.9U patent/CN218256523U/en active Active
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