CN111300776A - Electric pressurizing mold locking device - Google Patents
Electric pressurizing mold locking device Download PDFInfo
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- CN111300776A CN111300776A CN202010243705.1A CN202010243705A CN111300776A CN 111300776 A CN111300776 A CN 111300776A CN 202010243705 A CN202010243705 A CN 202010243705A CN 111300776 A CN111300776 A CN 111300776A
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- piston
- locking
- connecting rod
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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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the field of injection molding machines, and provides an electric pressurizing mold locking device, which comprises: the guide shaft movably penetrates through the two plates and is provided with a slotted tooth part; the end faces of the die locking seat movably abut against the end faces of the two plates, a rotary meshing part is movably inserted in the die locking seat, the rotary meshing part is sleeved on the slotted tooth part, and when the rotary meshing part rotates, the rotary meshing part can be meshed with the slotted tooth part; the locking assembly is arranged on the locking die holder, a piston is arranged on the locking assembly, the piston is movably inserted on the locking die holder, and the end face of the piston can be tightly abutted against the rotary meshing part when the piston moves forwards; the rotating assembly is arranged in the die locking seat and is rotationally connected with the piston, a helical gear is arranged at the end of the rotating assembly, the helical gear is meshed with the rotating meshing part, and the helical gear can be driven to rotate when the piston moves forwards and backwards. Compared with the prior art, the invention has the advantage that the motor does not need to continuously provide the clamping force.
Description
Technical Field
The invention belongs to the field of injection molding machines, and particularly relates to an electric pressurizing mold locking device.
Background
With the development of the plastic industry, the requirements for plastic products are higher and higher, and the requirements of the traditional toggle injection molding machine are difficult to meet. The two-plate injection molding machine has been widely used because of its simple structure and low cost. The clamping mechanism used in a two-plate injection molding machine generally includes a movable platen, a stationary platen, and a tie bar connected between the movable platen and the stationary platen for movement of the movable platen thereon. The action principle of the mold locking mechanism of the two-plate injection molding machine is that the movable mold plate is driven to move by the mold moving oil cylinder, and after the molds are attached, the four pressurizing oil cylinders continuously pressurize to enable the mold plate to tightly press the molds.
In current two board-like injection molding machine clamping mechanism, the effect of pull rod mainly plays and connects fixed die plate and movable mould board to provide the required pulling force of clamping mechanism when injection moulding, in the in-service use process, the fracture appears easily in the perpendicular atress of pull rod, it is consuming time to maintain, manufacturing cost increases, and the shared volume ratio of hydro-cylinder in the clamping structure is great, be unfavorable for the equipment miniaturization, during the mode locking, the hydro-cylinder need continuously provide the pulling force and just can guarantee the normal work of clamping mechanism.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides an electric pressurizing mold locking device.
The technical scheme adopted by the invention for solving the technical problems is as follows: an electric pressurizing mold locking device is provided, which comprises: the guide shaft movably penetrates through the two plates and is provided with a slotted tooth part;
the lock die holder is sleeved on the guide shaft, the end face of the lock die holder movably abuts against the end faces of the two plates, a rotary meshing part is movably inserted in the lock die holder and sleeved on the slotted tooth part, and when the rotary meshing part rotates, the rotary meshing part can be meshed with the slotted tooth part;
the locking assembly is arranged on the lock die holder, a piston is arranged on the locking assembly, the piston is movably inserted on the lock die holder, and the end face of the piston can be tightly abutted to the rotary meshing part when the piston moves forwards;
the rotating assembly is arranged in the die holder and is in rotating connection with the piston, a helical gear is arranged at the end of the rotating assembly and is in meshed connection with the rotating meshing part, and when the piston moves forwards and backwards, the helical gear can be driven to rotate.
In the above-mentioned electric pressurizing mold locking device, the locking assembly includes:
the eccentric shaft is movably inserted on the die locking seat, and a connecting rod is sleeved at the end part of the eccentric shaft;
one end of the force-increasing hinge rod is hinged with the base, the other end of the force-increasing hinge rod is hinged with a switching hinge rod, the end part of the switching hinge rod is hinged with the end part of the piston, and the upper end of the connecting rod is connected with the middle part of the force-increasing hinge rod;
when the connecting rod moves upwards, the piston can be driven to move forwards, and the force-increasing hinge rod, the switching hinge rod and the piston form a straight line.
In the electric pressurizing mold locking device, the upper end of the connecting rod is movably hinged with the force-increasing supporting rod, the end part of the force-increasing supporting rod is movably hinged with the mold locking seat, the middle part of the force-increasing lever is movably hinged with the switching connecting rod, and the upper end of the switching connecting rod is movably hinged with the middle part of the force-increasing hinge rod.
In the electric pressurizing mold locking device, the mold locking seat is provided with a servo motor and a synchronous belt pulley, the servo motor is connected with the synchronous belt pulley, and the synchronous belt pulley is connected with the eccentric shaft.
In the above-mentioned electric boost-lock mold apparatus, the rotating unit includes: one end of the crank connecting rod is rotationally connected with the piston;
and the sector gear is rotationally connected to the lock die holder, one end of the crank connecting rod is rotationally connected with the sector gear, and the sector gear is meshed with the helical gear.
In foretell electronic pressure boost mode locking device, be provided with the mounting panel in the mode locking seat, sector gear and helical gear all rotate connect in on the mounting panel, the arc logical groove has been seted up on the mounting panel, crank connecting rod one end is inserted and is equipped with the connecting pin, the connecting pin activity insert to the arc leads to the inslot and with sector gear connects.
In the electric pressurizing mold locking device, the mold locking seat is provided with a moving hole and a square hole, the moving hole is communicated with the square hole, the piston is movably inserted in the moving hole, and one end of the crank connecting rod, which is rotatably connected with the piston, is movably arranged in the square hole.
In the above-described electric supercharging die-locking device, the rotary engagement member includes: the rotating cylinder is movably inserted into the lock die holder and sleeved on the slotted tooth part, and the end part of the rotating cylinder is provided with meshing teeth which are meshed and connected with the helical gear;
the meshing nut is connected to the rotating cylinder and sleeved on the slotted tooth part, and mold locking teeth are arranged on the inner side surface of the mold locking nut;
when the rotating cylinder drives the mold locking nut, the mold locking teeth can be meshed with the slotted tooth parts.
In the above electric pressurizing mold locking device, the end of the mold locking nut has a pressing surface, and the end of the piston movably abuts against the pressing surface.
Compared with the prior art, the electric pressurizing mold locking device has the advantages that the electric pressurizing mold locking device only needs to be driven by a motor, so that the occupied area of the mold locking device is reduced; the supporting rod is adopted to amplify the driving force of the motor to increase the mold locking force until the force boosting hinge rod, the switching hinge rod and the piston form a linear self-locking state, the motor does not need to continuously provide the mold locking force, and the service life of the motor is prolonged; the rotary cylinder can drive the mold locking teeth to be meshed with the slotted tooth parts when rotating, mold locking force applied to the piston is flush with the piston, and piston fracture is avoided to the greatest extent.
Drawings
FIG. 1 is a perspective view of the electric pressurizing and mold-locking device in an operating state;
FIG. 2 is a perspective view of the electric pressurizing mold clamping device;
fig. 3 is an internal structural view of the electric supercharging die-locking apparatus.
Fig. 4 is an internal structural view of the present electric boost locker in another aspect.
In the figure, 1, head plate; 2. a second plate; 3. a guide shaft; 4. a slotted tooth portion; 5. a die locking seat; 6. a piston; 7. a helical gear; 8. an eccentric shaft; 9. a connecting rod; 10. a force-increasing hinge rod; 11. a hinge rod is connected in a switching way; 12. a force-increasing support rod; 13. a transfer connecting rod; 14. a servo motor; 15. a synchronous pulley; 16. a crank connecting rod; 17. a sector gear; 18. mounting a plate; 19. an arc-shaped through groove; 20. a connecting pin; 21. moving the hole; 22. a square hole; 23. a rotary drum; 24. meshing teeth; 25. locking the mold nut; 26. locking the mold teeth; 27. and (5) pressing the noodles.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 4, the electric clamping apparatus for a two-plate 2 injection molding machine includes: the head plate 1 is provided with a guide shaft 3, the guide shaft 3 movably penetrates through the second plate 2, and the guide shaft 3 is provided with a slotted tooth part 4; the lock die holder 5 is sleeved on the guide shaft 3, the end face of the lock die holder 5 is movably abutted against the end faces of the two plates 2, a rotary meshing part is movably inserted in the lock die holder 5, the rotary meshing part is sleeved on the slotted tooth part 4, and when the rotary meshing part rotates, the rotary meshing part can be meshed with the slotted tooth part 4; the locking assembly is arranged on the locking die holder 5, a piston 6 is arranged on the locking assembly, the piston 6 is movably inserted on the locking die holder 5, and the end face of the piston 6 can be abutted against the rotary meshing part when the piston moves forwards; the rotating assembly is arranged in the lock die holder 5 and is rotationally connected with the piston 6, the end part of the rotating assembly is provided with a helical gear 7, the helical gear 7 is meshed with the rotating meshing part, and the helical gear 7 can be driven to rotate when the piston 6 moves back and forth.
The head plate 1 and the second plate 2 move relatively to realize mold locking and mold opening, when in mold locking, the distance between the second plate 2 and the head plate 1 is short, the mold locking seat 5 is abutted against the end surface of the second plate 2, the rotary meshing part is arranged on the mold locking seat 5 and sleeved on the slotted tooth part 4, the piston 6 is arranged on the mold locking seat 5, one end of the piston 6 is abutted against the rotary meshing part, when the piston 6 moves forwards, the rotary meshing part can be driven to move forwards, during the forward movement of the piston 6, the bevel gear 7 can be driven to rotate, because the bevel gear 7 is meshed with the rotating meshing part, so that the helical gear 7 can drive the rotary kneading piece to rotate when rotating, the rotary meshing piece can be meshed with the slotted tooth part 4 when rotating, rotating engagement spare is rotatory simultaneously and advancing promptly, and then can with 4 meshing of fluting tooth portion and support tightly, realize the mode locking purpose, adopt the mode locking mode that tooth and tooth offset tightly, can provide bigger mode locking power and do not worry the cracked problem of part.
The locking assembly includes: the eccentric shaft 8 is movably inserted on the lock die holder 5, and the end part of the eccentric shaft 8 is sleeved with a connecting rod 9; one end of the force-increasing hinge rod 10 is hinged with the base, the other end of the force-increasing hinge rod 10 is hinged with the switching hinge rod 11, the end part of the switching hinge rod 11 is hinged with the end part of the piston 6, and the upper end of the connecting rod 9 is connected with the middle part of the force-increasing hinge rod 10; when the connecting rod 9 moves upwards, the piston 6 can be driven to move forwards, and the force-increasing hinge rod 10, the switching hinge rod 11 and the piston 6 form a straight line.
When the eccentric shaft 8 rotates, the connecting rod 9 can be driven to move downwards, the upper end of the connecting rod 9 is connected with the middle part of a boosting hinge rod 10, one end of the boosting hinge rod 10 is hinged with a base, when the connecting rod 9 moves upwards, the boosting hinge rod 10 can be lifted, the end part of the connecting rod 9 is connected with a switching hinge rod 11, the other end of the switching hinge rod 11 is connected with a piston 6, because the piston 6 is inserted on a lock die holder 5, when the boosting hinge rod 10 is electrically driven to rotate the switching hinge rod 11, the other end of the switching hinge rod 11 can drive the piston 6 to move forwards, the boosting hinge rod 10 and the connecting rod 9 form a lever structure, the upward force of the connecting rod 9 can be amplified by the boosting hinge rod 10, namely, the supporting force provided by the eccentric shaft 8 is amplified and converted into a locking force, when the piston 6 moves forwards until the boosting hinge rod 10, the switching hinge rod 11 and the piston 6 form a straight line, the, and because the force-increasing hinge rod 10, the switching hinge rod 11 and the piston 6 form a straight line, the force-increasing hinge rod 10, the switching hinge rod 11 and the piston 6 can form a self-locking structure, at the moment, the connecting rod 9 does not need to continuously provide supporting force, and the mold locking force and the reaction force received by the piston 6 are on the same straight line, so that the situation that the piston 6 is broken by pressure is avoided to the greatest extent.
The upper end of the connecting rod 9 is movably hinged with a force increasing supporting rod 12, the end part of the force increasing supporting rod 12 is movably hinged with the mould locking seat 5, the middle part of the force increasing lever is movably hinged with a switching connecting rod 139, and the upper end of the switching connecting rod 139 is movably hinged with the middle part of the force increasing hinge rod 10.
The end part of the force increasing lever is hinged with the upper end of the connecting rod 9, the electric force increasing lever can rotate upwards when the connecting rod 9 moves upwards, because the upper end of the switching connecting rod 139 is movably hinged with the middle part of the force increasing hinge rod 10, and the lower end of the switching connecting rod 139 is hinged with the middle part of the force increasing hinge rod, further, when the force increasing lever rotates upwards, the upward force can be further amplified, so that the mold locking force is larger, the advantage is that a driving source with smaller driving force can be used for providing the mold locking force, in the actual use process, according to the adopted driving forces with different sizes, the increase proportion of the force can be changed by changing the different connecting positions of the upper end of the switching connecting rod,
the servo motor 14 and the synchronous belt pulley 15 are arranged on the die holder 5, the servo motor 14 is connected with the synchronous belt pulley 15, the synchronous belt pulley 15 is connected with the eccentric shaft 8, the servo motor 14 can drive the synchronous belt pulley 15 to rotate, the synchronous belt pulley 15 is connected with the eccentric shaft 8, the eccentric shaft 8 can be driven to rotate, when the eccentric shaft 8 rotates to a certain angle, the top end of the connecting rod 9 is improved to the highest position, the force-increasing hinge rod 10, the switching hinge rod 11 and the piston 6 form a straight line to generate self-locking, the servo motor 14 can stop working without continuously providing supporting force, and the service life of the servo motor 14 is prolonged.
The rotating assembly includes: a crank link 169 having one end rotatably connected to the piston 6; and the sector gear 17 is rotationally connected to the lock die holder 5, one end of the crank connecting rod 169 is rotationally connected with the sector gear 17, and the sector gear 17 is meshed with the helical gear 7.
One end of a crank connecting rod 169 is connected with the piston 6, the other end of the crank connecting rod 169 is connected with the sector gear 17, when the piston 6 moves forwards, the crank connecting rod 169 can be driven to move forwards, then the crank connecting rod 169 drives the sector gear 17 to rotate, the sector gear 17 is meshed with the helical gear 7, when the sector gear 17 rotates, the helical gear 7 can be driven to rotate, then the helical gear 7 can drive the rotary meshing part to rotate, the rotary meshing part can be meshed with the slotted tooth part 4, when the crank connecting rod 169 moves forwards to a certain distance, the sector gear 17 is separated from the helical gear 7, at the moment, the helical gear 7 does not rotate any more, namely, the rotary meshing part can stop rotating and is kept meshed with the.
When the mold is opened, the servo motor 14 continues to work to drive the eccentric shaft 8 to continue rotating, so that the connecting rod 9 can be driven to move downwards, the connecting rod 9 pulls the boosting support rod 12 downwards, namely, the piston 6 can be driven to move backwards and release the mold locking force, the crank connecting rod 169 can be driven to move backwards when the piston 6 moves backwards, the curved screen connecting rod 9 drives the sector gear 17 to rotate backwards and be meshed with the helical gear 7 again, finally, the rotary meshing part can be driven to rotate reversely until the state is restored to the state of not being meshed with the slotted tooth part 4, and at the moment, the mold can be opened normally.
The lock die holder 5 is internally provided with a mounting plate 18, the sector gear 17 and the helical gear 7 are both rotationally connected to the mounting plate 18, the mounting plate 18 is provided with an arc-shaped through groove 19, one end of the crank connecting rod 169 is inserted with a connecting pin 20, and the connecting pin 20 is movably inserted into the arc-shaped through groove 19 and connected with the sector gear 17.
When the crank connecting rod 169 is driven by the piston 6 to move forward, the connecting pin 20 at the other end can move in the arc-shaped through groove 19, and then the sector gear 17 can be driven to rotate.
The lock die holder 5 is provided with a moving hole 21 and a square hole 22, the moving hole 21 is communicated with the square hole 22, the piston 6 is movably inserted into the moving hole 21, and one end of the crank connecting rod 169, which is rotatably connected with the piston 6, is movably arranged in the square hole 22.
When the piston 6 drives the crank connecting rod 169 to move forward, the other end of the crank connecting rod 169 can rotate in the arc-shaped through groove 19, so that the other end of the crank connecting rod 169 can also rotate, and the square hole 22 can avoid position interference between the die holder 5 and the crank connecting rod 169.
The rotating engagement assembly includes: the rotating cylinder 23 is movably inserted into the lock die holder 5 and sleeved on the slotted tooth part 4, the end part of the rotating cylinder 23 is provided with meshing teeth 24, and the meshing teeth 24 are meshed with the helical gear 7; a mold locking nut 25, which is engaged with the rotating cylinder 23 and is sleeved on the slotted tooth part 4, wherein the inner side surface of the mold locking nut 25 is provided with mold locking teeth 26; when the rotary cylinder 23 carries the locking nut 25, the locking teeth 26 can mesh with the notched tooth portions 4.
Mold locking nut 25 tip has the compacting face 27, piston 6 tip activity support lean on in on the compacting face 27, firstly can sticis mold locking nut 25 in order to guarantee that piston 6 is in order to provide the clamping force, secondly can avoid piston 6 to hinder mold locking nut 25 and rotate.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope and spirit of the invention as defined by the accompanying claims.
Claims (9)
1. An electric pressurizing mold locking device is characterized by comprising:
the guide shaft movably penetrates through the two plates and is provided with a slotted tooth part;
the lock die holder is sleeved on the guide shaft, the end face of the lock die holder movably abuts against the end faces of the two plates, a rotary meshing part is movably inserted in the lock die holder and sleeved on the slotted tooth part, and when the rotary meshing part rotates, the rotary meshing part can be meshed with the slotted tooth part;
the locking assembly is arranged on the lock die holder, a piston is arranged on the locking assembly, the piston is movably inserted on the lock die holder, and the end face of the piston can be tightly abutted to the rotary meshing part when the piston moves forwards;
the rotating assembly is arranged in the die holder and is in rotating connection with the piston, a helical gear is arranged at the end of the rotating assembly and is in meshed connection with the rotating meshing part, and when the piston moves forwards and backwards, the helical gear can be driven to rotate.
2. The apparatus according to claim 1, wherein the locking assembly comprises:
the eccentric shaft is movably inserted on the die locking seat, and a connecting rod is sleeved at the end part of the eccentric shaft;
one end of the force-increasing hinge rod is hinged with the base, the other end of the force-increasing hinge rod is hinged with a switching hinge rod, the end part of the switching hinge rod is hinged with the end part of the piston, and the upper end of the connecting rod is connected with the middle part of the force-increasing hinge rod;
when the connecting rod moves upwards, the piston can be driven to move forwards, and the force-increasing hinge rod, the switching hinge rod and the piston form a straight line.
3. The device according to claim 2, wherein a force-increasing rod is movably hinged to the upper end of the connecting rod, the end of the force-increasing rod is movably hinged to the mold clamping base, an adapting connecting rod is movably hinged to the middle of the force-increasing rod, and the upper end of the adapting connecting rod is movably hinged to the middle of the force-increasing rod.
4. The electric boost mold clamping apparatus according to claim 3, wherein the mold clamping base is provided with a servo motor and a synchronous pulley, the servo motor is connected to the synchronous pulley, and the synchronous pulley is connected to the eccentric shaft.
5. The apparatus according to claim 1, wherein the rotating assembly comprises: one end of the crank connecting rod is rotationally connected with the piston;
and the sector gear is rotationally connected to the lock die holder, one end of the crank connecting rod is rotationally connected with the sector gear, and the sector gear is meshed with the helical gear.
6. The mold clamping apparatus according to claim 5, wherein a mounting plate is disposed inside the mold clamping seat, the sector gear and the helical gear are rotatably connected to the mounting plate, an arc-shaped through groove is formed on the mounting plate, a connecting pin is inserted into one end of the crank link, and the connecting pin is movably inserted into the arc-shaped through groove and connected to the sector gear.
7. The electric pressurizing mold locking device according to claim 5, wherein the mold locking seat has a moving hole and a square hole, the moving hole is communicated with the square hole, the piston is movably inserted into the moving hole, and one end of the crank connecting rod, which is rotatably connected with the piston, is movably disposed in the square hole.
8. An electric boost clamping apparatus according to claim 1, wherein said rotating engagement member comprises: the rotating cylinder is movably inserted into the lock die holder and sleeved on the slotted tooth part, and the end part of the rotating cylinder is provided with meshing teeth which are meshed and connected with the helical gear;
the meshing nut is connected to the rotating cylinder and sleeved on the slotted tooth part, and mold locking teeth are arranged on the inner side surface of the mold locking nut;
when the rotating cylinder drives the mold locking nut, the mold locking teeth can be meshed with the slotted tooth parts.
9. The electric pressurizing mold clamping device according to claim 1, wherein the end of the mold clamping nut has a pressing surface against which the end of the piston movably abuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243705.1A CN111300776A (en) | 2020-03-31 | 2020-03-31 | Electric pressurizing mold locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243705.1A CN111300776A (en) | 2020-03-31 | 2020-03-31 | Electric pressurizing mold locking device |
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| Publication Number | Publication Date |
|---|---|
| CN111300776A true CN111300776A (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010243705.1A Pending CN111300776A (en) | 2020-03-31 | 2020-03-31 | Electric pressurizing mold locking device |
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| CN (1) | CN111300776A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290650A (en) * | 2021-12-29 | 2022-04-08 | 张家港市纽迈机械有限公司 | Gas-liquid pressurizing mold locking structure of injection blowing machine |
-
2020
- 2020-03-31 CN CN202010243705.1A patent/CN111300776A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290650A (en) * | 2021-12-29 | 2022-04-08 | 张家港市纽迈机械有限公司 | Gas-liquid pressurizing mold locking structure of injection blowing machine |
| CN114290650B (en) * | 2021-12-29 | 2023-11-07 | 张家港市纽迈机械有限公司 | Gas-liquid pressurizing mold locking structure of injection blowing machine |
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