CN214982962U - Hydraulic two-plate type mold locking device - Google Patents
Hydraulic two-plate type mold locking device Download PDFInfo
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- CN214982962U CN214982962U CN202121500185.4U CN202121500185U CN214982962U CN 214982962 U CN214982962 U CN 214982962U CN 202121500185 U CN202121500185 U CN 202121500185U CN 214982962 U CN214982962 U CN 214982962U
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Abstract
The utility model provides a two board-like mode locking devices of hydraulic pressure relates to processing technology fields such as injection molding machine, die casting machine, moulding press. The mould locking mechanism comprises a fixed mould plate and a movable mould plate, wherein a mould locking oil cylinder is arranged on the movable mould plate, a mould locking piston rod is arranged in the mould locking oil cylinder, and one end of the mould locking piston rod penetrates through the movable mould plate at four corners of the movable mould plate and is connected to the fixed mould plate; and two ends of one diagonal line of the movable template are provided with a mold moving oil cylinder, a mold moving piston rod is arranged in the mold moving oil cylinder, and the mold moving piston rod is connected to the fixed template. The hydraulic two-plate type mold locking device has the advantages that the movable mold plate is quickly close to the fixed mold plate in a pulling mode to complete mold locking through the action of the mold moving oil cylinder, and the four mold locking oil cylinders at the four corners of the movable mold plate complete high-pressure mold locking after mold locking is completed. In addition, the die moving oil cylinders arranged diagonally can accelerate the die opening and closing speed, so that the production period is shortened, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of mould plastics, the mould pressing processing equipment technique and specifically relates to a two board-like mode locking devices of hydraulic pressure.
Background
An injection molding machine is also known as a plastic injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The method is divided into a mechanical type, a hydraulic type, a machine-liquid mixed type and a full-electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. The mold locking device is used in the injection molding machine and has the function of ensuring that the molding mold can be opened and closed flexibly, accurately, quickly, reliably and safely and ensuring that the mold cavity is tightly closed and the plastic melt cannot overflow out of the mold cavity. The mold locking device comprises a fixed mold plate and a movable mold plate, the traditional mold locking mode is that a hydraulic oil cylinder is adopted to push the movable mold plate to be close to the fixed mold plate, but the stability of the pushing mode is poor, and the traditional mold locking device also has the problems of serious abrasion and low mold locking precision, so that the quality of a product is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes shortcoming among the prior art provides a two board-like mode locking devices of hydraulic pressure, through the effect of moving the mould hydro-cylinder, makes the movable mould board be close to with the fixed die plate fast with the mode of pulling and accomplishes the compound die, and stability is good, and in addition, the mould hydro-cylinder that moves can accelerate die sinking and compound die speed to shorten production cycle, improve production efficiency.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
a hydraulic two-plate mode locking device comprises a fixed template and a movable template, wherein mode locking oil cylinders are arranged at four corners of the movable template, mode locking piston rods are arranged in the mode locking oil cylinders, and one ends of the mode locking piston rods penetrate through the movable template and are connected to the fixed template; two ends of one diagonal line of the movable template are provided with a mold moving oil cylinder, a mold moving piston rod is arranged in the mold moving oil cylinder, and one end of the mold moving piston rod penetrates through the movable template and is connected to the fixed template; and the movable template is provided with an ejection mechanism.
Preferably, the fixed die plate and the movable die plate are arranged in parallel, the mold locking oil cylinder comprises a rear end cover, a reinforcing plate is arranged beside the rear end cover, the reinforcing plate is parallel to the fixed die plate and the movable die plate, connecting holes are formed in the reinforcing plate and the rear end cover, and the mold locking oil cylinder further comprises a brace, and the brace penetrates through the reinforcing plate and is connected to the movable die plate through the rear end cover.
Preferably, the inner of mode locking piston rod is provided with the mode locking piston, be provided with the logic valve in the mode locking piston, the rear end of mode locking piston is provided with the piston back cover, and the front end is provided with the locking ring, mode locking piston outside is provided with the friction ring in the mode locking hydro-cylinder, and the mode locking piston is along mode locking hydro-cylinder inner wall seesaw, still be provided with uide bushing and gland on the movable mould board, the mode locking piston rod wears to overlap in the uide bushing.
Preferably, the end of the mold locking piston rod is provided with a large locking nut, a nut gland is arranged outside the large locking nut, a bolt hole and a locking bolt are arranged on the nut gland, and the locking bolt penetrates through the bolt hole and is connected to the fixed mold plate.
Preferably, the movable mould plate is provided with a mould moving front end cover, the fixed mould plate is provided with a connecting plate, the mould moving oil cylinder is fixedly connected to the mould moving front end cover, the end part of the mould moving piston rod is connected to the connecting plate, and the end part of the mould moving oil cylinder is further provided with a mould moving rear end cover.
Preferably, the ejection mechanism comprises a support, an ejection cylinder is arranged on the support, an ejection piston rod is arranged in the ejection cylinder, and the ejection piston rod penetrates through the movable template.
Preferably, the cylinder diameter size of the mold moving oil cylinder is smaller than that of the mold locking oil cylinder.
Preferably, the movable mould plate is provided with 4 oil way connecting channels which are connected with rod cavities of 4 mould locking oil cylinders.
Preferably, two sides of the bottom of the movable template and two sides of the bottom of the reinforcing plate are respectively provided with a linear guide rail, and the movable template and the reinforcing plate move back and forth on the linear guide rails to realize opening and closing of the mold.
Compared with the prior art, the beneficial effects of the utility model are that:
the movable template is arranged on a linear guide rail of a machine body in a sliding mode, when die assembly is needed, a die moving piston rod is recovered into a die moving oil cylinder, the die moving oil cylinder moves together with the movable template, the movable template is enabled to be close to the fixed template in a pulling mode to complete die assembly, the die assembly is different from the traditional mode of die assembly through pushing the movable template to move, the stability of the mode of pulling die assembly is better, in addition, no matter in die assembly or die assembly, the die moving oil cylinder can be filled quickly due to the fact that the cylinder diameter of the die moving oil cylinder is small, the die moving piston rod can be recovered or extended quickly to enable the movable template and the fixed template to be closed or separated preliminarily, then the die locking piston rod is recovered or extended to lock or separate the movable template and the fixed template in a high-strength mode, the processing speed is high, and the production efficiency is improved.
Drawings
FIG. 1 is a general view of a hydraulic two-plate mold clamping apparatus according to the present embodiment;
fig. 2 is a schematic view of the internal structures of the mold locking cylinder and the mold locking piston rod according to the present embodiment;
fig. 3 is a perspective view of the hydraulic two-plate mold clamping apparatus according to the present embodiment.
In the figure: 1-fixed die plate, 2-movable die plate, 3-die locking oil cylinder, 4-die locking piston rod, 5-die moving oil cylinder, 6-die moving piston rod, 7-rear end cover, 8-reinforcing plate, 9-brace locking nut, 10-logic valve, 11-die locking piston, 12-piston rear cover, 13-locking ring, 14-guide sleeve, 15-guide sleeve gland, 16-locking large nut, 17-nut gland, 18-locking bolt, 19-die moving front end cover, 20-connecting plate, 21-die moving rear end cover, 22-bracket, 23-ejection oil cylinder, 24-ejection piston rod, 25-machine bed and 26-brace.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1 to 3, a hydraulic two-plate mold locking device includes a fixed mold plate 1, a movable mold plate 2 and a reinforcing plate 8, wherein two linear guide rails are respectively arranged on two sides of the bottom of the movable mold plate 2 and the bottom of the reinforcing plate 8, the linear guide rails are installed on a machine bed 25, the movable mold plate 2 and the reinforcing plate 8 are slidably installed on the linear guide rails, the fixed mold plate 1 is fixedly installed on the machine bed 25, and the movable mold plate 2 and the reinforcing plate 8 move back and forth on the linear guide rails to realize opening and closing of the mold.
The four corners of the movable template 2 are provided with the mold locking oil cylinders 3, the number of the mold locking oil cylinders 3 is four, the mold locking oil cylinders are distributed at the four corners of the movable template 2 and are stable in pushing and pulling, the mold locking piston rods 4 are arranged in the mold locking oil cylinders 3, and one ends of the mold locking piston rods 4 penetrate through the movable template 2 and are connected to the fixed template 1; two ends of one diagonal line of the movable template 2 are provided with two mold moving oil cylinders 5, the number of the mold moving oil cylinders 5 is two, the mold moving oil cylinders are distributed at the diagonal line of the movable template 2, a mold moving piston rod 6 is arranged in the mold moving oil cylinder 5, one end of the mold moving piston rod 6 penetrates through the movable template 2 and is connected to the fixed template 1, and the diameter of the mold moving oil cylinder 5 is smaller than that of the mold locking oil cylinder 3; the working principle of the design is that when the die is required to be closed, the die-moving piston rod 6 is recovered to the die-moving oil cylinder 5, the movable die plate 2 is close to the fixed die plate 1 in a pulling mode to complete die closing, the movable die plate 2 moves together with the die-locking oil cylinder 3, so the guide sleeve 14 in the die-locking oil cylinder 3 has a certain guide function, the stability of operation is improved, the pulling mode has better stability compared with the traditional mode of closing the die by pushing the movable die plate 2 to move, in addition, no matter in die closing or die opening, because the cylinder diameter size of the die-moving oil cylinder 5 is smaller, the die-moving oil cylinder 5 can be quickly filled, the die-moving piston rod 6 can be quickly recovered or extended to enable the movable die plate 2 and the fixed die plate 1 to be preliminarily closed or separated, then the die-locking piston rod 4 is recovered or extended to carry out to close or separate the movable die plate 2 and the fixed die plate 1 with high strength, thereby the processing speed is high, the production efficiency is improved; the mould moving oil cylinder 5 and the mould moving piston rod 6 are arranged at the opposite angles of the movable mould plate 2, and extend out from the opposite angles simultaneously to jack the movable mould plate 2 and the fixed mould plate 1, so that the resistance is relatively small, and the mould opening speed is accelerated.
The injection molding machine is characterized in that the movable mold plate 2 is provided with an ejection mechanism, the ejection mechanism comprises a support 22, the support 22 is fixedly connected to the movable mold plate 2, the support 22 is provided with an ejection cylinder 23, an ejection piston rod 24 is arranged in the ejection cylinder 23, the ejection piston rod 24 penetrates through the movable mold plate 2, and after the mold is opened, namely the movable mold plate 2 is separated from the fixed mold plate 1, the ejection cylinder 23 controls the ejection piston rod 24 to extend out and penetrate through the movable mold plate 2 to eject an injection molding workpiece.
The fixed die plate 1 and the movable die plate 2 are arranged on the machine tool body 25 in parallel, the die locking oil cylinder 3 comprises a rear end cover 7, a reinforcing plate 8 is arranged beside the rear end cover 7, the reinforcing plate 8 is parallel to the fixed die plate 1 or the movable die plate 2, connecting holes are formed in the reinforcing plate 8 and the rear end cover 7, the die locking oil cylinder further comprises a brace 26, the brace 26 penetrates through the connecting holes in the reinforcing plate 8 and the rear end cover 7 to be assembled on the movable die plate 2, external threads are arranged on the brace 26 and matched with the brace locking nut 9 for use, after the reinforcing plate 8, the rear end cover 7 and the die locking oil cylinder 3 are connected onto the movable die plate 2 through the brace 26, the brace locking nut 9 is screwed on the end portion of the brace 26, and therefore the reinforcing plate 8, the die locking oil cylinder 3 and the movable die plate 2 are locked to form a whole. The connecting holes are used for the brace 26 to penetrate through, the brace locking nut 9 is used for being screwed on the brace 26, and the reinforcing plate 8 plays a supporting and balancing role on the tail part of the mode locking oil cylinder 3; the inner end of the mode locking piston rod 4 is provided with a logic valve 10, a mode locking piston 11 is arranged outside the logic valve 10, a piston rear cover 12 is arranged at the rear end of the mode locking piston 11, a locking ring 13 is arranged at the front end of the mode locking piston 11, the logic valve 10, the mode locking piston 11, the piston rear cover 12 and the locking ring 13 are combined together, the mode locking piston rod 4 can move left and right under the driving of an oil circuit, a guide sleeve 14 is arranged in the mode locking oil cylinder 3, the mode locking piston rod 4 is sleeved in the guide sleeve 14 in a penetrating mode, the guide sleeve 14 has guiding, supporting and lubricating effects on the mode locking piston rod 4, abrasion caused by direct connection of the mode locking piston rod 4 and the inner wall of the mode locking oil cylinder 3 is avoided, a guide sleeve gland 15 is further arranged on the movable die plate 2, and the guide sleeve gland 15 has a limiting effect on the guide sleeve 14.
The end of the mode locking piston rod 4 is provided with a large locking nut 16, the large locking nut 16 is fixedly connected at the end of the mode locking piston rod 4, a nut gland 17 is arranged outside the large locking nut 16, a bolt hole (not shown) and a locking bolt 18 are arranged on the nut gland 17, the locking bolt 18 penetrates through the bolt hole and is connected to the fixed die plate 1, and the large locking nut 16 and the nut gland 17 are used for improving the stability of the end connection of the mode locking piston rod 4 on the fixed die plate 1.
The movable template 2 is provided with a moving template front end cover 19, the fixed template 1 is provided with a connecting plate 20, the moving template oil cylinder 5 is fixedly connected onto the moving template front end cover 19, the end part of the moving template piston rod 6 is connected onto the connecting plate 20, the end part of the moving template oil cylinder 5 is also provided with a moving template rear end cover 21, and the moving template piston rod 6 moves by drawing the connecting plate 20, so that the movable template 2 and the fixed template 1 are driven to move close to and separate from each other.
The movable mould plate 2 is provided with 4 oil circuit connecting channels, is connected with the rod cavities of the 4 mould locking oil cylinders 3 and is used for oil and liquid flow in the rod cavities of the mould locking oil cylinders 3.
Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements and the like can be made in the technical solutions of the foregoing embodiments or in some technical features of the foregoing embodiments, but all modifications, equivalents, improvements and the like within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. A hydraulic two-plate mode locking device is characterized by comprising a fixed template and a movable template, wherein mode locking oil cylinders are arranged at four corners of the movable template, mode locking piston rods are arranged in the mode locking oil cylinders, and one ends of the mode locking piston rods penetrate through the movable template and are connected to the fixed template; two ends of one diagonal line of the movable template are provided with a mold moving oil cylinder, a mold moving piston rod is arranged in the mold moving oil cylinder, and one end of the mold moving piston rod penetrates through the movable template and is connected to the fixed template; and the movable template is provided with an ejection mechanism.
2. The hydraulic two-plate mold locking device according to claim 1, wherein the fixed mold plate and the movable mold plate are arranged in parallel, the mold locking cylinder comprises a rear end cover, a reinforcing plate is arranged beside the rear end cover, the reinforcing plate is arranged in parallel with the fixed mold plate and the movable mold plate, connecting holes are arranged on the reinforcing plate and the rear end cover, and the mold locking device further comprises a brace, and the brace penetrates through the connecting holes on the reinforcing plate and the rear end cover and is assembled on the movable mold plate.
3. The hydraulic two-plate mode locking device according to claim 2, wherein the inner end of the mode locking piston rod is provided with a mode locking piston, a logic valve is arranged in the mode locking piston, the rear end of the mode locking piston is provided with a piston rear cover, the front end of the mode locking piston is provided with a locking ring, the mode locking piston is arranged outside the mode locking piston in the mode locking oil cylinder, the mode locking piston moves back and forth along the inner wall of the mode locking oil cylinder, the movable die plate is further provided with a guide sleeve and a gland, and the mode locking piston rod is sleeved in the guide sleeve in a penetrating manner.
4. The hydraulic two-plate mold locking device according to claim 1, wherein the end of the mold locking piston rod is provided with a large locking nut, a nut gland is arranged outside the large locking nut, the nut gland is provided with a bolt hole and a locking bolt, and the locking bolt penetrates through the bolt hole and is connected to the fixed mold plate.
5. The hydraulic two-plate mold locking device according to claim 1, wherein the movable mold plate is provided with a mold-moving front end cap, the fixed mold plate is provided with a connecting plate, the mold-moving cylinder is fixedly connected to the mold-moving front end cap, an end of the mold-moving piston rod is connected to the connecting plate, and an end of the mold-moving cylinder is further provided with a mold-moving rear end cap.
6. The hydraulic two-plate mold locking device according to claim 1, wherein the ejection mechanism comprises a support, the support is provided with an ejection cylinder, the ejection cylinder is provided with an ejection piston rod, and the ejection piston rod penetrates through the movable mold plate.
7. The hydraulic two-plate mold locking device according to claim 1, wherein the diameter of the mold-moving cylinder is smaller than the diameter of the mold-locking cylinder.
8. The hydraulic two-plate mold locking device according to claim 1, wherein the movable mold plate is provided with 4 oil-way connecting channels for connecting rod cavities of 4 mold locking cylinders.
9. The hydraulic two-plate mold locking device according to claim 1, wherein a linear guide is provided on each of both sides of the bottom of the movable platen and the reinforcing plate, and the movable platen and the reinforcing plate move back and forth on the linear guide to open and close the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121500185.4U CN214982962U (en) | 2021-07-03 | 2021-07-03 | Hydraulic two-plate type mold locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121500185.4U CN214982962U (en) | 2021-07-03 | 2021-07-03 | Hydraulic two-plate type mold locking device |
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| Publication Number | Publication Date |
|---|---|
| CN214982962U true CN214982962U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121500185.4U Active CN214982962U (en) | 2021-07-03 | 2021-07-03 | Hydraulic two-plate type mold locking device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871486A (en) * | 2023-06-09 | 2023-10-13 | 广州市型腔模具制造有限公司 | Ultra-large integrated vehicle body chassis die-casting die and die-casting process |
-
2021
- 2021-07-03 CN CN202121500185.4U patent/CN214982962U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871486A (en) * | 2023-06-09 | 2023-10-13 | 广州市型腔模具制造有限公司 | Ultra-large integrated vehicle body chassis die-casting die and die-casting process |
| CN116871486B (en) * | 2023-06-09 | 2024-04-02 | 广州市型腔模具制造有限公司 | Ultra-large integrated vehicle body chassis die-casting die and die-casting process |
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