CN210758915U - A mould for shaping wiper linking arm - Google Patents
A mould for shaping wiper linking arm Download PDFInfo
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- CN210758915U CN210758915U CN201921525330.7U CN201921525330U CN210758915U CN 210758915 U CN210758915 U CN 210758915U CN 201921525330 U CN201921525330 U CN 201921525330U CN 210758915 U CN210758915 U CN 210758915U
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- fixedly connected
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- sliding block
- mould
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Abstract
The utility model relates to a mould for shaping wiper linking arm, it includes the fixed plane, drive actuating cylinder with fixed plane fixed connection, back mould with fixed plane fixed connection, with the front mould of back mould phase separation, it presses the material core to be provided with between upper die and the lower mould, press the material in-core to be formed with pre-compaction fashioned pressure material chamber, be provided with on the front mould and press the charge cavity that the material chamber is linked together, set up the groove of sliding in the back mould, sliding joint complex has the sliding block in the groove of sliding, the sliding block presses one side fixedly connected with in material chamber to be used for the first holing pole in shaping processing hole, it is used for the second holing pole of shaping connecting hole to press material intracavity fixedly connected with down. The utility model provides a setting up of first pore-forming pole can make the processing hole direct forming in the wiper linking arm, and second pore-forming pole can make connecting hole direct forming simultaneously, and shaping processing hole and connecting hole that in-process of moulding plastics can be quick have saved the manufacturing procedure in later stage, have improved production efficiency greatly.
Description
Technical Field
The utility model relates to a wiper injection moulding production's technical field, in particular to a mould for shaping wiper linking arm.
Background
A wiper, also called a wiper, or a windshield wiper, is a device for wiping off raindrops and dust attached to a windshield of a vehicle, so as to improve visibility of a driver and increase driving safety. Because of legal requirements, almost all motor vehicles come with wipers. The rear windows of vehicles such as hatchbacks and recreational vehicles are also equipped with wipers. In addition to automobiles, other transportation means are provided with wipers such as trains, trams, and the like. Some engineering machines, such as cranes, etc. are also provided with wipers.
As shown in fig. 1, the wiper comprises a curved handle 1, a first elbow 2 and a second elbow 3 which are integrally formed with the curved handle 1, a processing hole 4 is formed in the first elbow 2, a first extension plate 5 and a second extension plate 6 are fixedly connected to the first elbow 2, a notch 7 is formed between the first extension plate 5 and the second extension plate 6, and a connecting hole 8 is formed in the second elbow 3.
When the windscreen wiper is produced, the windscreen wiper is initially molded in an injection molding mode, and is further processed by grinding, polishing and the like, so that the windscreen wiper can reach the installation standard.
The existing mould for producing the connecting arm of the windscreen wiper is generally to perform injection molding on the whole bent handle, the first elbow and the second elbow, and then process machining holes and connecting holes after molding and demolding, so that the machining holes and the connecting holes on the connecting arm cannot be completely molded at one time, and the production efficiency is greatly reduced in the production process.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mould for shaping wiper linking arm, it has the advantage of synchronous shaping processing hole and connecting hole when moulding plastics, can improve the production efficiency who makes the linking arm.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a mould for forming a connecting arm of a windscreen wiper comprises a fixed plane, a driving cylinder fixedly connected with the fixed plane, a rear mould fixedly connected with the fixed plane, and a front mould separated from the rear mould, wherein a piston rod of the driving cylinder is inserted in the rear mould in a sliding manner, the end part of the piston rod is fixedly connected with the front die, a material pressing core is arranged between the front die and the rear die and comprises an upper material pressing core fixedly connected with the front die and a lower material pressing core fixedly connected with the rear die, a pre-pressing molding pressing cavity is formed between the upper pressing core and the lower pressing core, a charging hole communicated with the pressing cavity is arranged on the front die, the back mould is seted up the groove of sliding, the inslot slip joint complex that slides has the sliding block, the sliding block is used for the first pore-forming pole in shaping processing hole towards one side fixedly connected with in pressing the material chamber, press material intracavity fixedly connected with to be used for the second pore-forming pole in shaping connecting hole down.
By adopting the technical scheme, when the front die and the rear die are combined, molten plastic solution is injected into the feeding hole, the plastic solution enters the material pressing cavity between the upper material pressing core and the lower material pressing core, the material pressing cavity can directly form the connecting arm of the windscreen wiper, the sliding block in the material pressing cavity drives the first hole forming rod to extend into the material pressing cavity, the first hole forming rod is arranged to directly form the processing hole in the connecting arm of the windscreen wiper, meanwhile, the second hole forming rod can directly form the connecting hole, after the connecting arm of the windscreen wiper is formed, the sliding block is moved to drive the first hole forming rod to move, so that the first hole forming rod can be separated from the processing hole after forming, the connecting arm of the windscreen wiper after forming can be smoothly demoulded, the hole and the connecting hole can be quickly formed in the injection molding process, and the later processing procedures can be omitted, the production efficiency is greatly improved, and meanwhile, the strength and the precision of the wiper connecting arm integrated forming can be improved.
The utility model discloses further set up to: the rear die is provided with a sliding assembly linked with the sliding block, the sliding assembly comprises a first limiting plate fixedly connected with the rear die, an inclined guide post fixedly connected with the front die and a guide groove formed in the sliding block, and the inclined guide post is in inserted fit with the guide groove.
Through adopting the above technical scheme, the setting of oblique guide pillar slope form can be in the front mould reciprocating with the cooperation of pegging graft mutually of guide way on the sliding block, can make the sliding block move to one side that is close to the pressure material chamber in the front mould compound die, in the front mould with the back mould separation, the oblique guide pillar can drive the sliding block and move to one side of keeping away from the pressure material chamber, thereby can realize the automatic movement of sliding block, at the in-process facility more of moulding plastics, and can improve work efficiency, the setting of first limiting plate can play certain spacing effect of blockking to the sliding block, prevent that the sliding block from breaking away from with the back mould mutually.
The utility model discloses further set up to: one end of the inclined guide post facing the sliding block is arc-shaped.
Through adopting above-mentioned technical scheme, oblique guide pillar is in the cooperation of pegging graft mutually with the guide way, and circular-arc setting can make oblique guide pillar more accurate cooperate with guide way looks joint to can make oblique guide pillar smooth drive the slider and remove.
The utility model discloses further set up to: one side of the sliding block facing the material pressing cavity is fixedly connected with a limiting block, and the limiting block and the first hole forming rod are integrally formed.
Through adopting above-mentioned technical scheme, the setting of spacing stopper can play the effect of certain shutoff to pressing the material chamber, when first pore-forming pole extends to pressing the material intracavity, can prevent that molten plastic solution from flowing out from first pore-forming pole and pressing the gap between the material chamber, can guarantee the smooth shaping of wiper linking arm.
The utility model discloses further set up to: two pressing cavities are arranged in the pressing core and communicated with the feeding hole.
Through adopting above-mentioned technical scheme, the setting in two pressure material chambeies can make two wiper linking arms of one shot forming of mould in work to can increase the work efficiency who moulds plastics, great improvement work efficiency.
The utility model discloses further set up to: the two pressing cavities are communicated with overflow grooves, and the overflow grooves between the two pressing cavities are communicated with each other.
By adopting the technical scheme, the arrangement of the overflow cavity can ensure that the molten plastic solution is completely attached to the pressure cavity, so that the quality of the formed connecting arm of the windscreen wiper is better.
The utility model discloses further set up to: and the front die and the upper material pressing core are communicated with exhaust holes communicated with the material pressing cavity.
Through adopting above-mentioned technical scheme, the setting in exhaust hole can be at the in-process of moulding plastics with the air escape in the pressure material chamber, prevents to press the material intracavity the gas pocket appears to can guarantee the shaping quality of wiper linking arm.
The utility model discloses further set up to: and cold water channels which are communicated with each other are arranged in the rear die and the lower pressing core.
Through adopting above-mentioned technical scheme, can pour into cold water into in the cold water passageway at the in-process of moulding plastics to can be at the wiper linking arm at the in-process refrigerated speed of moulding plastics faster, thereby can improve work efficiency.
To sum up, the utility model discloses a beneficial technological effect does:
1. the arrangement of the first hole forming rod can enable a machining hole in the connecting arm of the windscreen wiper to be directly formed, meanwhile, the second hole forming rod can enable the connecting hole to be directly formed, after the connecting arm of the windscreen wiper is formed, the sliding block is moved to drive the first hole forming rod to move, so that the first hole forming rod can be separated from the machining hole after forming, the formed connecting arm of the windscreen wiper can be smoothly demoulded, the machining hole and the connecting hole can be quickly formed in the injection molding process, the later machining process is omitted, and the production efficiency is greatly improved;
2. the inclined guide post can drive the sliding block to move towards one side far away from the material pressing cavity, so that the sliding block can automatically move, the injection molding process is more convenient, the working efficiency can be improved, and the arrangement of the first limiting plate can play a certain limiting and blocking role on the sliding block to prevent the sliding block from being separated from the rear mold;
3. the limiting block can play a certain role in blocking the pressing cavity, when the first hole forming rod extends into the pressing cavity, molten plastic solution can be prevented from flowing out of a gap between the first hole forming rod and the pressing cavity, and smooth forming of the connecting arm of the windscreen wiper can be guaranteed;
4. the two wiper connecting arms can be formed by the die in one step by arranging the two pressing cavities, so that the injection molding work efficiency can be increased, and the work efficiency is greatly improved.
Drawings
Fig. 1 is a schematic view showing an overall structure of a connecting arm for a wiper blade according to the related art;
FIG. 2 is a schematic view showing the overall structure of a mold;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of a specific structure for embodying the sliding block and the first hole forming rod;
fig. 5 is a schematic diagram showing a specific structure of the oblique guide post.
In the figure, 1, a bent handle; 2. a first elbow; 3. a second elbow; 4. machining a hole; 5. a first extension plate; 6. a second extension plate; 7. a notch; 8. connecting holes; 9. fixing a plane; 11. a rear mold; 12. a front mold; 13. pressing the material core upwards; 14. pressing the material core; 15. a material pressing cavity; 16. a feed aperture; 17. a sliding groove; 18. a slider; 19. a first hole forming bar; 20. a second hole-forming rod; 21. a slipping component; 211. a first limit plate; 212. an inclined guide post; 213. a guide groove; 22. a limiting block; 24. an overflow trough; 25. an exhaust hole; 26. a cold water passage.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): a die for forming connecting arms of a windscreen wiper comprises a fixed plane 9, a driving cylinder (not shown in the figure) fixedly connected with the fixed plane 9, a rear die 11 fixedly connected with the fixed plane 9, and a front die 12 arranged corresponding to the rear die 11, wherein a material pressing core is arranged between the front die 12 and the rear die 11, the material pressing core comprises an upper material pressing core 13 fixedly connected with the front die 12 and a lower material pressing core 14 fixedly connected with the rear die 11, a material pressing cavity 15 formed by pre-pressing is formed between the upper material pressing core 13 and the lower material pressing core 14, the material pressing cavities 15 are two, the two material pressing cavities 15 are communicated with a feeding hole 16, the two material pressing cavities 15 are communicated with overflow grooves 24, the overflow grooves 24 between the two material pressing cavities 15 are communicated with each other, and two connecting arms of the windscreen wiper can be formed at one time during injection molding, so that the production efficiency can be improved.
As shown in fig. 2, a feeding hole 16 communicated with a pressing cavity 15 is formed in the front mold 12, during injection molding, the front mold 12 is attached to the rear mold 11, molten plastic liquid is injected into the feeding hole 16, the plastic liquid enters the pressing cavity 15 between the upper pressing core 13 and the lower pressing core 14, after the plastic liquid is cooled and solidified, the wiper connecting arm can be directly formed, a piston rod of a driving cylinder is slidably inserted into the rear mold 11, the end portion of the piston rod is fixedly connected with the front mold 12, after the wiper connecting arm is formed, the driving cylinder is started to drive the driving cylinder to drive the piston rod to move, the piston rod pushes the front mold 12, the front mold 12 drives the upper pressing core 13, the rear mold 11 and the lower pressing core 14, and the wiper can be separated from the pressing cavity 15.
As shown in fig. 2, the upper pressing core 13 and the upper die are provided with exhaust holes 25 communicated with the pressing cavity 15 in a through manner, and in the injection molding process, the exhaust holes 25 can exhaust gas in the pressing cavity 15, so that smooth molding of the connecting arm of the windscreen wiper can be ensured, no bubbles are generated on the surface during molding, and the quality of the molded connecting arm is ensured.
As shown in fig. 2, the cold water channel 26 communicated with each other is formed in the rear mold 11 and the lower pressing core 14, and cooling water can be injected into the cold water channel 26 in the injection molding process, so that the connecting arm of the windscreen wiper can be rapidly molded, and the production efficiency can be improved.
As shown in fig. 3, a second hole forming rod 20 for forming the connecting hole 8 is fixedly connected in the lower pressing cavity 15, and the second hole forming rod 20 enables the connecting hole 8 to be directly formed during injection molding without subsequent processing procedures, so that the working efficiency can be improved.
As shown in fig. 4, a sliding groove 17 is formed in the rear mold 11, a sliding block 18 is arranged in the sliding groove 17 and is in sliding clamping fit with the sliding block, a first hole forming rod 19 used for forming the processing hole 4 is fixedly connected to one side of the sliding block 18 facing the material pressing cavity 15, and when the connecting arm is injection-molded, the sliding block 18 drives the first hole forming rod 19 to extend into the material pressing cavity 15, so that the processing hole 4 can be directly formed at the injection-molding process.
As shown in fig. 4, one side of the sliding block 18 facing the pressing cavity 15 is fixedly connected with a limiting block 22, the limiting block 22 and the first hole forming rod 19 are integrally formed, and when the first hole forming rod 19 is matched with the pressing cavity 15, the limiting block 22 can play a role in blocking the pressing cavity 15, so that molten plastic can be prevented from flowing out from a gap between the first hole forming rod 19 and the pressing cavity 15, and smooth forming of the connecting arm is ensured.
As shown in fig. 4 and 5, the rear mold 11 is provided with a sliding assembly 21 linked with the sliding block 18, the sliding assembly 21 includes a first limit plate 211 fixedly connected with the rear mold 11, an inclined guide post 212 fixedly connected with the front mold 12, and a guide groove 213 opened on the sliding block 18, the inclined guide post 212 is inserted and matched with the guide groove 213, the lower end of the inclined guide post 212 is arranged in an inclined shape facing the outside of the material pressing cavity 15, one end of the inclined guide post 212 facing the sliding block 18 is arranged in an arc shape, when the die is closed, the inclined guide post 212 can be matched with the guide groove 213 in an inserted manner to drive the sliding block 18 to move towards the direction close to the material pressing cavity 15, when the front die 12 is separated from the rear die 11, the inclined guide post 212 moves upwards, so as to drive the sliding block 18 to move away from the material pressing cavity 15, thereby enabling the first hole forming rod 19 to be smoothly separated from the connecting hole 8 and enabling the formed connecting arm to be smoothly demoulded.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A die for forming a connecting arm of a windscreen wiper comprises a fixing plane (9), a driving cylinder fixedly connected with the fixing plane (9), a rear die (11) fixedly connected with the fixing plane (9), and a front die (12) arranged corresponding to the rear die (11), wherein a piston rod of the driving cylinder is inserted in the rear die (11) in a sliding manner, the end part of the piston rod is fixedly connected with the front die (12), a material pressing core is arranged between the front die (12) and the rear die (11), the material pressing core comprises an upper material pressing core (13) fixedly connected with the front die (12) and a lower material pressing core (14) fixedly connected with the rear die (11), a pre-pressing molding pressing cavity (15) is formed between the upper pressing core (13) and the lower pressing core (14), be provided with charge door (16) that are linked together with pressing material chamber (15) on front mould (12), its characterized in that: set up groove (17) that slides in back mould (11), sliding joint complex has sliding block (18) in groove (17) slides, sliding block (18) are used for first pore-forming pole (19) of contour machining hole (4) towards one side fixedly connected with of pressure material chamber (15), press material chamber (15) internal fixedly connected with to be used for second pore-forming pole (20) of shaping connecting hole (8) down.
2. The mold for molding a connecting arm of a wiper blade according to claim 1, wherein: the rear die (11) is provided with a sliding assembly (21) linked with the sliding block (18), the sliding assembly (21) comprises a first limiting plate (211) fixedly connected with the rear die (11), an inclined guide post (212) fixedly connected with the front die (12) and a guide groove (213) formed in the sliding block (18), and the inclined guide post (212) is in inserting fit with the guide groove (213).
3. The mold for molding a connecting arm of a wiper blade according to claim 2, wherein: one end of the inclined guide post (212) facing the sliding block (18) is arranged in an arc shape.
4. The mold for molding a connecting arm of a wiper blade according to claim 3, wherein: one side of the sliding block (18) facing the material pressing cavity (15) is fixedly connected with a limiting block (22), and the limiting block (22) and the first hole forming rod (19) are integrally formed.
5. The mold for molding a connecting arm of a wiper blade according to claim 1, wherein: two pressing cavities (15) are arranged in the pressing core, and the two pressing cavities (15) are communicated with the feeding hole (16).
6. The mold for molding a connecting arm of a wiper blade according to claim 5, wherein: the two pressing cavities (15) are communicated with overflow grooves (24), and the overflow grooves (24) between the two pressing cavities (15) are communicated with each other.
7. The mold for molding a connecting arm of a wiper blade according to claim 6, wherein: and the front die (12) and the upper material pressing core (13) are internally provided with an exhaust hole (25) communicated with the material pressing cavity (15) in a penetrating way.
8. The mold for molding a connecting arm of a wiper blade according to claim 1, wherein: and cold water channels (26) which are communicated with each other are respectively arranged in the rear die (11) and the lower pressing core (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921525330.7U CN210758915U (en) | 2019-09-12 | 2019-09-12 | A mould for shaping wiper linking arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921525330.7U CN210758915U (en) | 2019-09-12 | 2019-09-12 | A mould for shaping wiper linking arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210758915U true CN210758915U (en) | 2020-06-16 |
Family
ID=71061919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921525330.7U Active CN210758915U (en) | 2019-09-12 | 2019-09-12 | A mould for shaping wiper linking arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210758915U (en) |
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2019
- 2019-09-12 CN CN201921525330.7U patent/CN210758915U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A mould for forming wiper connecting arm Effective date of registration: 20200929 Granted publication date: 20200616 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: Wuxi guangshuo Precision Machinery Co.,Ltd. Registration number: Y2020990001180 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |