CN211518310U - Mechanical synchronous driving screw tooth core-pulling mechanism - Google Patents
Mechanical synchronous driving screw tooth core-pulling mechanism Download PDFInfo
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- CN211518310U CN211518310U CN201921792988.4U CN201921792988U CN211518310U CN 211518310 U CN211518310 U CN 211518310U CN 201921792988 U CN201921792988 U CN 201921792988U CN 211518310 U CN211518310 U CN 211518310U
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Abstract
The utility model discloses a mechanical type synchronous drive's screw tooth mechanism of loosing core, include: the rack that sets up at the front formwork lateral wall, rotate the first transmission shaft that sets up on the template lateral wall of back, rotate the second transmission shaft that sets up on the template of back, rotate the third transmission shaft that sets up in the template of back, rotate the fourth transmission shaft that sets up in the template of back and rotate the screw rod that sets up in the template of back. The utility model has the advantages that: the screw tooth core pulling mechanism is driven by the mold opening force of the front mold plate during mold opening to complete core pulling action, and sufficient output power is ensured during core pulling. The screw tooth core pulling mechanism does not need to use an oil cylinder or a motor, so that the overall size of the die is reduced, and the manufacturing cost of the die is reduced. The screw tooth core pulling mechanism synchronously completes core pulling action in the mold opening process of the mold, and solves the problem that a product can rotate along with a screw. The screw tooth core pulling mechanism is simple to process, convenient to install and high in operation stability.
Description
Technical Field
The utility model relates to a technical field of mould thread mechanism of loosing core, in particular to mechanical type synchronous drive's thread mechanism of loosing core.
Background
In our life, the plastic products of the screw teeth are seen everywhere and have different shapes. In the mold industry, the method for forming the screw threads on the plastic product generally uses an oil cylinder or a motor to pull a rack, and the rack drives a screw to drive the screw threads to rotate. The oil cylinder and the motor are used as power, the output power is small, and when a product with large packing force is encountered, the screw rod is difficult to rotate. In addition, the conventional mold opening and screw core pulling actions cannot be performed synchronously, and the screw core pulling action is performed after the mold is completely opened. Generally, the mold is arranged on the thread side of a plastic product, namely the rear mold side, the stop position cannot be increased due to the shape requirement of the plastic product, and when the thread core pulling action is carried out, the screw rod rotates to drive the product to rotate. If a stop bit is provided on the front mold side, the front mold side is no longer in contact with the plastic product after the mold is fully opened, and thus the plastic product cannot be prevented from rotating with the screw. If the core pulling action of the screw teeth is finished before the mold opening, the problem that the plastic product is stuck to the front mold side occurs.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model aims at providing a mechanical type synchronous drive's screw tooth mechanism of loosing core, when aiming at solving current screw tooth mechanism of loosing core and move, output power is little, and the product can be along with the problem of screw rod rotation together.
In order to achieve the above object, the utility model provides a mechanical type synchronous drive's screw tooth mechanism of loosing core, include: the rack that sets up at the front formwork lateral wall, rotate the first transmission shaft that sets up on the template lateral wall of back, rotate the second transmission shaft that sets up on the template of back, rotate the third transmission shaft that sets up in the template of back, rotate the fourth transmission shaft that sets up in the template of back and rotate the screw rod that sets up in the template of back. The rack, the first transmission shaft, the second transmission shaft, the third transmission shaft, the fourth transmission shaft and the screw are sequentially in transmission connection, wherein a first bevel gear is arranged at the first end of the first transmission shaft, a second bevel gear is arranged at the first end of the second transmission shaft, and the first transmission shaft and the second transmission shaft are in transmission connection with the second bevel gear through the first bevel gear. One end of the screw rod is provided with a screw tooth part for forming a screw tooth on a product, the front template is provided with a cavity for forming the product, and the screw tooth part is inserted into the cavity. The outer wall of the product is provided with a bone position, and the inner wall of the cavity is provided with a rotation stopping groove for forming the bone position of the product.
Preferably, two first bearing seats are arranged on the rear template, and the first transmission shaft is rotatably arranged in the two first bearing seats. The first transmission shaft is provided with a first straight gear, and the rack is in transmission connection with the first straight gear.
Preferably, the rear template is provided with a second bearing seat, and the second transmission shaft is rotatably arranged in the second bearing seat.
Preferably, one end of the third transmission shaft protrudes out of the rear template and is in transmission connection with the second end of the second transmission shaft through a belt or a chain.
Preferably, a second spur gear is arranged on the third transmission shaft, a third spur gear is arranged on the fourth transmission shaft, and the third transmission shaft and the fourth transmission shaft are in transmission connection with the third spur gear through the second spur gear.
Preferably, a fourth spur gear is arranged on the fourth transmission shaft and is in transmission connection with the screw.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the screw tooth core pulling mechanism is driven by the mold opening force of the front mold plate during mold opening to complete core pulling action, and sufficient output power is ensured during core pulling.
2. The screw tooth core pulling mechanism does not need to use an oil cylinder or a motor, so that the overall size of the die is reduced, and the manufacturing cost of the die is reduced.
3. The screw tooth core pulling mechanism synchronously completes core pulling action in the mold opening process of the mold, and solves the problem that a product can rotate along with a screw.
4. The screw tooth core pulling mechanism is simple to process, convenient to install and high in operation stability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of an embodiment of the screw core-pulling mechanism;
FIG. 2 is a schematic view of the screw core-pulling mechanism after an embodiment is assembled into a mold;
FIG. 3 is a front view of the molded product;
FIG. 4 is an enlarged view taken at A in FIG. 3;
the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
Detailed Description
The utility model provides a mechanical type synchronous drive's screw tooth mechanism of loosing core.
Referring to fig. 1 to 2, fig. 1 is a schematic view showing an overall structure of an embodiment of the thread core-pulling mechanism, and fig. 2 is a schematic view showing a structure of the embodiment of the thread core-pulling mechanism after being assembled into a mold.
As shown in fig. 1-2, in the embodiment of the present invention, the mechanical synchronous driving screw core-pulling mechanism includes: two racks 110 provided on the side wall of the front mold plate 100, a first transmission shaft 210 rotatably provided on the side wall of the rear mold plate 200, a second transmission shaft 220 rotatably provided on the rear mold plate 200, a third transmission shaft 230 rotatably provided in the rear mold plate 200, a fourth transmission shaft 240 rotatably provided in the rear mold plate 200, and a screw 250 rotatably provided in the rear mold plate 200. For ease of installation, the rear template 200 includes: a fixed die holder plate 201 and a fixed die plate 202 fixed together.
Specifically, in the present embodiment, two first bearing seats 260 are provided on the rear mold plate 200, and a part of the first bearing seats 260 is fixed to the fixed mold base plate 201 by screws, and the other part is fixed to the fixed mold plate 202 by screws, thereby fixing the fixed mold base plate 201 and the fixed mold plate 202 together. The first transmission shaft 210 is rotatably disposed in the two first bearing seats 260. The two ends of the first transmission shaft 210 are provided with first straight gears 211 corresponding to the two racks 110 in a key and key slot matching manner, and the racks 110 are in transmission connection with the first straight gears 211. By arranging two racks 110 to drive the first transmission shaft 210 to rotate, the screw core-pulling mechanism can ensure enough output power.
Specifically, in the present embodiment, the fixed mold base plate 201 of the rear mold plate 200 is provided with a second bearing seat 270, and the second transmission shaft 220 is rotatably disposed in the second bearing seat 270. The first transmission shaft 210 is provided with a first bevel gear 212 in a key and key slot matching manner, the first end of the second transmission shaft 220 is provided with a second bevel gear 221 in a key and key slot matching manner, and the first transmission shaft 210 and the second transmission shaft 220 are in transmission connection with the second bevel gear 221 through the first bevel gear 212. The change of the transmission direction is realized by the transmission matching of the first bevel gear 212 and the second bevel gear 221. Meanwhile, when assembling, the required output speed can be selected by selecting the proportional relation of the number of the teeth of the first straight gear 211 and the first bevel gear 212.
Specifically, in the present embodiment, the third transmission shaft 230 is rotatably disposed in the rear mold plate 200 through a bearing, and one end of the third transmission shaft protrudes out of the fixed mold base plate 201 of the rear mold plate 200 and is in transmission connection with the second end of the second transmission shaft 220 through the chain 300.
It should be noted that in other embodiments of the present invention, the third transmission shaft 230 and the second end of the second transmission shaft 220 may also be connected by a belt transmission.
Specifically, in the present embodiment, a second spur gear 231 is disposed on the third transmission shaft 230, a third spur gear 241 is disposed on the fourth transmission shaft 240, and the third transmission shaft 230 and the fourth transmission shaft 240 are in transmission connection with the third spur gear 241 through the second spur gear 231. A fourth drive shaft 240 is also rotatably mounted within rear platen 200 by bearings.
Specifically, in the present embodiment, a fourth spur gear 242 is disposed on the fourth transmission shaft 240, and the fourth spur gear 242 is in transmission connection with two screws 250.
One end of the screw 250 is provided with a screw part 251 for forming a screw thread on the product 400, the front mold plate 100 is provided with a cavity for forming the product 400, and the screw part 251 is inserted into the cavity. The inner wall of the cavity is provided with a rotation stopping groove for forming a bone position 420 on the outer wall of the product 400. After the product 400 is molded, the bone position 420 of the outer wall of the product is clamped in the rotation stopping groove, so that the product 400 cannot be driven to rotate together when the thread part 251 on the screw 250 looses the core.
The utility model discloses a theory of operation: when the product 400 is molded and the mold is opened and demolded, the product 400 gradually moves away from the rear mold plate 200 along with the front mold plate 100, so that the rack 110 is in transmission connection with the first straight gear 211 to drive the first transmission shaft 210 to synchronously rotate, the first transmission shaft 210 is in transmission connection with the second bevel gear 221 through the first bevel gear 212 to drive the second transmission shaft 220 to synchronously rotate, the second transmission shaft 220 drives the third transmission shaft 230 to synchronously rotate through the chain 300, the third transmission shaft 230 is in transmission connection with the third straight gear 241 through the second straight gear 231 to drive the fourth transmission shaft 240 to synchronously rotate, the fourth transmission shaft 240 is in transmission connection with the screw 250 through the fourth straight gear 242 to drive the screw part 251 on the screw 250 to synchronously rotate and withdraw from the product 400, and the mold opening and the screw core pulling actions are synchronously completed. During the core pulling process, since the product 400 is not completely separated from the front mold plate 100, the product 400 is clamped in the rotation stopping groove by the bone position 420 of the outer wall thereof and thus does not rotate together with the screw 250.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the screw tooth core-pulling mechanism utilizes the mold opening force of the front mold plate 100 to drive the front mold plate to complete the core-pulling action during mold opening, and ensures sufficient output power during core-pulling.
2. The screw tooth core pulling mechanism does not need to use an oil cylinder or a motor, so that the overall size of the die is reduced, and the manufacturing cost of the die is reduced.
3. The thread core-pulling mechanism synchronously completes core-pulling action in the mold opening process of the mold, and solves the problem that the product 400 rotates along with the screw 250.
4. The screw tooth core pulling mechanism is simple to process, convenient to install and high in operation stability.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (6)
1. A mechanical type synchronous driving screw tooth core-pulling mechanism is characterized by comprising: the rack is arranged on the side wall of the front template, the first transmission shaft is rotatably arranged on the side wall of the rear template, the second transmission shaft is rotatably arranged on the rear template, the third transmission shaft is rotatably arranged in the rear template, the fourth transmission shaft is rotatably arranged in the rear template, and the screw rod is rotatably arranged in the rear template; the rack, the first transmission shaft, the second transmission shaft, the third transmission shaft, the fourth transmission shaft and the screw are sequentially in transmission connection, wherein a first bevel gear is arranged on the first transmission shaft, a second bevel gear is arranged at the first end of the second transmission shaft, and the first transmission shaft and the second transmission shaft are in transmission connection with the second bevel gear through the first bevel gear; one end of the screw rod is provided with a screw tooth part for forming a screw tooth on a product, the front template is provided with a cavity for forming the product, and the screw tooth part is inserted into the cavity; the outer wall of the product is provided with a bone position, and the inner wall of the cavity is provided with a rotation stopping groove for forming the bone position on the product.
2. The mechanical synchronously-driven screw core pulling mechanism according to claim 1, wherein two first bearing seats are arranged on the rear template, and the first transmission shaft is rotatably arranged in the two first bearing seats; and a first straight gear is arranged on the first transmission shaft, and the rack is in transmission connection with the first straight gear.
3. The mechanical synchronous drive screw core-pulling mechanism according to claim 1, wherein a second bearing seat is provided on the rear template, and the second transmission shaft is rotatably disposed in the second bearing seat.
4. The mechanical synchronous-drive screw core-pulling mechanism according to claim 1, wherein one end of the third transmission shaft protrudes out of the rear die plate and is in transmission connection with the second end of the second transmission shaft through a belt or a chain.
5. The mechanical synchronous driving screw tooth core pulling mechanism according to claim 4, wherein a second spur gear is arranged on the third transmission shaft, a third spur gear is arranged on the fourth transmission shaft, and the third transmission shaft and the fourth transmission shaft are in transmission connection with the third spur gear through the second spur gear.
6. The mechanical synchronously-driven screw core pulling mechanism according to claim 4, wherein a fourth spur gear is arranged on the fourth transmission shaft, and the fourth spur gear is in transmission connection with the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792988.4U CN211518310U (en) | 2019-10-23 | 2019-10-23 | Mechanical synchronous driving screw tooth core-pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792988.4U CN211518310U (en) | 2019-10-23 | 2019-10-23 | Mechanical synchronous driving screw tooth core-pulling mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN211518310U true CN211518310U (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921792988.4U Active CN211518310U (en) | 2019-10-23 | 2019-10-23 | Mechanical synchronous driving screw tooth core-pulling mechanism |
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| CN (1) | CN211518310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191823A (en) * | 2020-11-17 | 2021-01-08 | 阜阳市世科智能设备有限公司 | Novel die casting die of die-casting mechanism |
| CN117103591A (en) * | 2023-09-05 | 2023-11-24 | 东台迈盛智能科技有限公司 | A mould for prefabricating wind power generation blade roof beam |
-
2019
- 2019-10-23 CN CN201921792988.4U patent/CN211518310U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191823A (en) * | 2020-11-17 | 2021-01-08 | 阜阳市世科智能设备有限公司 | Novel die casting die of die-casting mechanism |
| CN112191823B (en) * | 2020-11-17 | 2021-07-27 | 阜阳市世科智能设备有限公司 | Novel die casting die of die-casting mechanism |
| CN117103591A (en) * | 2023-09-05 | 2023-11-24 | 东台迈盛智能科技有限公司 | A mould for prefabricating wind power generation blade roof beam |
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