CN220095471U - Cam adjusting device of radial wall thickness of electrodynamic type - Google Patents
Cam adjusting device of radial wall thickness of electrodynamic type Download PDFInfo
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- CN220095471U CN220095471U CN202321173048.3U CN202321173048U CN220095471U CN 220095471 U CN220095471 U CN 220095471U CN 202321173048 U CN202321173048 U CN 202321173048U CN 220095471 U CN220095471 U CN 220095471U
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- 230000005520 electrodynamics Effects 0.000 title description 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims abstract description 21
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 11
- 230000013011 mating Effects 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model discloses an electric radial wall thickness cam adjusting device which is characterized by comprising a bracket, a die assembly, a die core assembly and a plurality of groups of radial extrusion assemblies, wherein a forming gap is formed between the die assembly and the die core assembly; the radial extrusion assemblies are symmetrically arranged on the outer side of the bracket, and the movable ends of the radial extrusion assemblies are connected with the outer side of the die assembly; the radial extrusion assembly comprises a driving motor, a cam part and a pushing connecting part, wherein the driving motor is used for driving the cam part to eccentrically rotate, so that a plurality of groups of pushing connecting parts simultaneously do opposite horizontal telescopic movement, and the pushing die assembly moves inwards or outwards, so that the radial distance of a forming gap is reduced or increased, and the radial wall thickness of a blank is adjusted; compared with the prior art, the utility model adopts a driving mode that the cam drives the push connecting part to move horizontally, has high transmission efficiency and high repetition precision, has simpler overall structure, and reduces the manufacturing cost and the maintenance cost.
Description
Technical Field
The utility model relates to the field of plastic molding equipment, in particular to an electric cam adjusting device with radial wall thickness.
Background
In the traditional plastic extrusion blow hollow molding process, in order to adjust the thickness of the blank, a radial wall thickness control device is generally adopted to change the size of a gap of a rubber outlet runner of a machine head so as to achieve the purpose that the thickness of the blank meets the production requirement. In the prior art, a radial wall thickness device driven by hydraulic pressure or a radial wall thickness device driven by a worm gear driven by a motor is generally adopted to realize adjustment of the radial wall thickness of a runner. For the hydraulic-driven radial wall thickness control device, pollution of plastic raw materials is easy to cause, and a corresponding hydraulic system is required to be installed in a matched mode to realize the radial wall thickness control action, so that the manufacturing cost and the maintenance cost are high. While the motor is adopted to drive the worm and gear transmission mechanism to drive the electric radial wall thickness control device, the problem of pollution of plastic raw materials can be solved, but the transmission efficiency of the worm and gear transmission mechanism is low, so that a reliable lubricating device is required to be arranged for heat dissipation and abrasion reduction, and the maintenance cost is still higher.
Disclosure of Invention
The utility model aims to provide an electric radial wall thickness cam adjusting device, which aims to solve one or more problems in the prior art.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an electric type radial wall thickness cam adjusting device, includes support, bush subassembly, mold core subassembly and multiunit radial extrusion subassembly, the bush subassembly is hollow structure, the bush subassembly is established on the support, the mold core subassembly is established in the bush subassembly, form the shaping gap between bush subassembly and the mold core subassembly;
the radial extrusion assemblies are symmetrically arranged on the outer side of the bracket, and the movable ends of the radial extrusion assemblies are connected with the outer side of the die assembly; the radial extrusion assembly comprises a driving motor, a cam part and a pushing connecting part, wherein the rotating shaft end of the driving motor is connected with one end of the cam part, one end of the pushing connecting part is matched with the outer side of the cam part, the other end of the pushing connecting part is connected with the die assembly, the driving motor is used for driving the cam part to eccentrically rotate, so that multiple groups of pushing connecting parts simultaneously do opposite horizontal telescopic motions, and the die assembly is pushed to move inwards or outwards, so that the radial distance of a forming gap is reduced or increased.
Preferably, the pushing connection component comprises a cam bearing, a cam connecting rod and a power push rod, the cam bearing is sleeved on the outer side of the cam part, one end of the cam connecting rod is sleeved on the outer side of the cam bearing, the other end of the cam connecting rod is hinged with one end of the power push rod, and the other end of the power push rod is connected with the mouth module component.
Preferably, the pushing connection component further comprises a limiting gland, the limiting gland is arranged between the cam part and the die assembly, a limiting channel which is horizontally communicated is arranged on the limiting gland, and the limiting channel is in sliding fit with the outer side of the power push rod.
Preferably, the pushing connection component further comprises an adjusting sleeve, a threaded matching cavity is formed in one end of the adjusting sleeve, the other end of the power push rod is in threaded connection with the threaded matching cavity, and the other end of the adjusting sleeve is connected with the mouth module component.
Preferably, the radial extrusion assembly further comprises a mounting box body, a mounting bearing, a speed reducer and a transmission shaft, wherein the input end of the speed reducer is connected with the rotating shaft end of the driving motor, the output end of the speed reducer is connected with one end of the transmission shaft, the mounting box body is arranged at one end of the speed reducer, the transmission shaft is arranged in the mounting box body through the mounting bearing, and the cam part is arranged on the transmission shaft.
Preferably, the transmission shaft is a stepped shaft, and a shaft shoulder on the transmission shaft and the shaft end are eccentrically arranged to form the cam part.
Preferably, the die assembly comprises a fixed die and an elastic die, the fixed die is arranged on the support, the elastic die is arranged at the bottom end of the fixed die, and the outer side of the elastic die is connected with a plurality of groups of pushing connecting parts.
Preferably, the mold core assembly comprises a fixed mold core, an elastic mold core and an adjusting mold core, wherein the fixed mold core is arranged at the inner side of the elastic die, the adjusting mold core is arranged at the bottom of the fixed mold core, the elastic mold core is arranged at the outer side of the adjusting mold core, and a forming gap is formed between the adjusting mold core and the elastic die.
Preferably, the mold core assembly further comprises a plurality of adjusting bolts, the adjusting bolts are uniformly distributed at the bottom of the adjusting mold core, the adjusting bolts are in threaded fit with the adjusting mold core, and the end parts of the adjusting bolts are propped against the inner side of the elastic mold core.
Preferably, the device further comprises a displacement sensor and a detection plate, wherein the displacement sensor is fixed on one side of the power push rod, the detection plate is connected with the power push rod, and the detection plate is in contact with the detection end of the displacement sensor.
The beneficial effects of the utility model are as follows: the driving motor drives the cam part to rotate, so that the connecting part is pushed to horizontally stretch and retract to drive the die assembly to deform, the size of a forming gap between the die assembly and the die core assembly is changed, and the radial wall thickness of the blank is adjusted; compared with the prior art, the utility model adopts a driving mode that the cam drives the push connecting part to move horizontally, has high transmission efficiency and high repetition precision, has simpler overall structure, and reduces the manufacturing cost and the maintenance cost.
Drawings
The present utility model is further illustrated by the accompanying drawings, which are not to be construed as limiting the utility model in any way.
FIG. 1 is a schematic overall construction of one embodiment of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of one embodiment of the present utility model;
FIG. 3 is a schematic view of the internal structure of a radial compression assembly according to one embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of section A-A of FIG. 3;
FIG. 5 is a schematic view of the structure of a push-on connection part of one embodiment of the present utility model;
fig. 6 is a schematic structural view of a propeller shaft according to one embodiment of the present utility model.
Wherein: the die assembly 1, the die core assembly 2, the radial extrusion assembly 3, the forming gap 111, the driving motor 311, the cam portion 321, the pushing connection member 32, the cam bearing 33, the cam connecting rod 34, the power push rod 35, the limit gland 36, the limit channel 361, the adjusting sleeve 37, the screw fitting cavity 371, the mounting box 381, the mounting bearing 382, the speed reducer 312, the transmission shaft 320, the fixed die 11, the elastic die 12, the fixed die core 21, the elastic die core 22, the adjusting die core 23, the adjusting bolt 231, the displacement sensor 51 and the detection plate 52.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1 and 2, an electric cam adjusting device for radial wall thickness of the embodiment comprises a bracket 4, a die assembly 1, a die core assembly 2 and a plurality of groups of radial extrusion assemblies 3, wherein the die assembly 1 is of a hollow structure, the die assembly 1 is arranged on the bracket 4, the die core assembly 2 is arranged in the die assembly 1, and a forming gap 111 is formed between the die assembly 1 and the die core assembly 2;
the radial extrusion assemblies 3 are symmetrically arranged on the outer side of the bracket 4, and the movable ends of the radial extrusion assemblies 3 are connected with the outer side of the die assembly 1; the radial extrusion assembly 3 comprises a driving motor 311, a cam portion 321 and a pushing connecting component 32, wherein the rotating shaft end of the driving motor 311 is connected with one end of the cam portion 321, one end of the pushing connecting component 32 is matched with the outer side of the cam portion 321, the other end of the pushing connecting component 32 is connected with the die assembly 1, the driving motor 311 is used for driving the cam portion 321 to eccentrically rotate, a plurality of groups of pushing connecting components 32 simultaneously do opposite horizontal telescopic motions, and the die assembly 1 is pushed to move inwards or outwards, so that the radial distance of a forming gap 111 is reduced or increased, and the radial wall thickness of a blank can be adjusted.
The cam part 321 is driven to rotate by the driving motor 311, and the moving track of eccentric rotation of the cam part 321 is utilized to drive the pushing connecting component 32 matched with the cam part 321 to horizontally stretch and retract, so that the die assembly 1 connected with the pushing connecting component 32 is elastically deformed, the size of the forming gap 111 between the die assembly 1 and the die core assembly 2 is changed, and the radial wall thickness of the blank is adjusted; therefore, compared with the prior art, the embodiment adopts a driving mode that the cam drives the pushing connecting part 32 to move horizontally, the transmission efficiency is high, the repetition precision is high, the whole structure of the device is simpler, and the manufacturing cost and the maintenance cost are reduced.
Preferably, referring to fig. 3 to 5, the push connection part 32 includes a cam bearing 33, a cam link 34 and a power push rod 35, the cam bearing 33 is sleeved on the outer side of the cam portion 321, one end of the cam link 34 is sleeved on the outer side of the cam bearing 33, the other end of the cam link 34 is hinged with one end of the power push rod 35, and the other end of the power push rod 35 is connected with the die assembly 1.
By arranging the cam bearing 33, the movable connection between the cam portion 321 and the cam connecting rod 34 is realized, so that the cam portion 321, the cam connecting rod 34 and the power push rod 35 form a crank slide block mechanism, wherein the cam portion 321 is used as a crank of the crank slide block mechanism, the cam connecting rod 34 is used as a connecting rod of the crank slide block mechanism, and the power push rod 35 is used as a slide block of the crank slide block mechanism, so that the eccentric rotation of the cam portion 321 can drive the power push rod 35 to horizontally stretch and retract, and further, the radial distance of the forming gap 111 is adjusted.
Further, the pushing connection component 32 further comprises a limiting gland 36, the limiting gland 36 is arranged between the cam part and the mouth module component 1, the limiting gland 36 is provided with a limiting channel 361 which is horizontally communicated, and the limiting channel 361 is in sliding fit with the outer side of the power push rod 35. Therefore, the limiting gland 36 is arranged to limit the movement of the power push rod 35, when the cam portion 321 eccentrically rotates to drive the power push rod 35 to move, the outer side of the power push rod 35 is in sliding fit with the limiting channel 361 in the limiting gland 36, so that the power push rod 35 keeps horizontally moving, and then the die assembly 1 is radially pushed, and the deformation of the die assembly 1 is more uniform.
Preferably, the pushing connection part 32 further comprises an adjusting sleeve 37, one end of the adjusting sleeve 37 is provided with a threaded matching cavity 371, the other end of the power push rod 35 is in threaded connection with the threaded matching cavity 371, and the other end of the adjusting sleeve 37 is connected with the mouth module assembly 1. The other end of the power push rod 35 is provided with the adjusting sleeve 37, the end of the power push rod 35 stretches into the adjusting sleeve 37 by the threaded fit of the threaded fit cavity 371 at the end of the adjusting sleeve 37 and the other end of the power push rod 35, so that the horizontal position of the connecting point between the adjusting sleeve 37 and the die assembly 1 can be adjusted by threads, and the compression amount of the connecting part 32 on the die assembly 1 can be conveniently finely adjusted and pushed.
Preferably, the radial extrusion assembly 3 further comprises a mounting box 381, a mounting bearing 382, a speed reducer 312 and a transmission shaft 320, the driving motor 311 is a servo motor, the input end of the speed reducer 312 is connected with the rotating shaft end of the driving motor 311, the output end of the speed reducer 312 is connected with one end of the transmission shaft 320, the mounting box 381 is arranged at one end of the speed reducer 312, the transmission shaft 320 is arranged in the mounting box 381 through the mounting bearing 382, and the cam portion 321 is arranged on the transmission shaft 320. Thus, the cam portion 321 is eccentrically rotated by the rotation of the drive shaft 320 by the drive motor 311.
Further, referring to fig. 6, the driving shaft 320 is a stepped shaft, and a shoulder on the driving shaft 320 is eccentrically disposed with respect to a shaft end to form a cam portion 321. Therefore, the cam portion 321 can be formed by machining a shaft shoulder of the transmission shaft 320 to be eccentric to the shaft end of the transmission shaft 320, and the structure is simple and the machining is convenient.
Preferably, the die assembly 1 comprises a fixed die 11 and an elastic die 12, the fixed die 11 is arranged on the bracket 4, the elastic die 12 is arranged at the bottom end of the fixed die 11, and the outer side of the elastic die 12 is connected with a plurality of groups of pushing connecting parts 32. The movable end of the push-on connection member 32 is connected to the outer side of the elastic die 12, so that the elastic die 12 can be elastically formed to be compressed or expanded when the push-on connection member 32 moves radially, thereby adjusting the radial distance of the forming slit 111.
Further, the mold core assembly 2 includes a fixed mold core 21, an elastic mold core 22, and an adjusting mold core 23, the fixed mold core 21 is disposed at the inner side of the elastic die 12, the adjusting mold core 23 is disposed at the bottom of the fixed mold core 21, the elastic mold core 22 is disposed at the outer side of the adjusting mold core 23, and a forming gap 111 is formed between the adjusting mold core 23 and the elastic die 12. The fixed die core 21 is used for fixing the elastic die core 22, and the adjusting die core 23 is arranged on the inner side of the elastic die core 22, and the elastic die core 22 can be subjected to inward narrowing or outward expanding elastic deformation by adjusting the adjusting die core 23, so that the radial distance of the forming gap 111 between the elastic die core 22 and the elastic die 12 can be adjusted by adjusting the adjusting die core 23.
Further, the mold core assembly 2 further comprises a plurality of adjusting bolts 231, the plurality of adjusting bolts 231 are uniformly distributed at the bottom of the adjusting mold core 23, the adjusting bolts 231 are in threaded fit with the adjusting mold core 23, and the end parts of the adjusting bolts 231 are propped against the inner side of the elastic mold core 22. The adjusting bolt 231 is in threaded fit with the adjusting mold core 23, so that the length of the end part of the adjusting bolt 231 extending out of the outer side of the adjusting mold core 23 can be adjusted, and the elastic mold core 22 propped against the end part of the adjusting bolt 231 is elastically deformed to be narrowed inwards or expanded outwards, so that the radial distance of the forming gap 111 between the elastic mold core 22 and the elastic die 12 can be adjusted by changing the relative positions of the adjusting bolt 231 and the adjusting mold core 23.
Preferably, the device further comprises a displacement sensor 51 and a detection plate 52, wherein the displacement sensor 51 is fixed on one side of the power push rod 35, the detection plate 52 is connected with the power push rod 35, and the detection plate 52 is contacted with the detection end of the displacement sensor 51. By providing the displacement sensor 51 for detecting the radial position of the power push rod 35, the size of the forming slit 111 is conveniently obtained in real time.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (10)
1. The cam adjusting device is characterized by comprising a bracket, a die assembly, a die core assembly and a plurality of groups of radial extrusion assemblies, wherein the die assembly is of a hollow structure, the die assembly is arranged on the bracket, the die core assembly is arranged in the die assembly, and a forming gap is formed between the die assembly and the die core assembly;
the radial extrusion assemblies are symmetrically arranged on the outer side of the bracket, and the movable ends of the radial extrusion assemblies are connected with the outer side of the die assembly; the radial extrusion assembly comprises a driving motor, a cam part and a pushing connecting part, wherein the rotating shaft end of the driving motor is connected with one end of the cam part, one end of the pushing connecting part is matched with the outer side of the cam part, the other end of the pushing connecting part is connected with the die assembly, the driving motor is used for driving the cam part to eccentrically rotate, so that multiple groups of pushing connecting parts simultaneously do opposite horizontal telescopic motions, and the die assembly is pushed to move inwards or outwards, so that the radial distance of a forming gap is reduced or increased.
2. The device according to claim 1, wherein the push connection member comprises a cam bearing, a cam link and a power push rod, the cam bearing is sleeved on the outer side of the cam portion, one end of the cam link is sleeved on the outer side of the cam bearing, the other end of the cam link is hinged to one end of the power push rod, and the other end of the power push rod is connected to the mouth module assembly.
3. The cam adjusting device of claim 2, wherein the push-on connection member further comprises a limit gland disposed between the cam portion and the die assembly, the limit gland having a horizontally-through limit channel disposed therein, the limit channel being slidably engaged with the outside of the power pushrod.
4. The cam adjusting device of claim 2, wherein the push-on connection member further comprises an adjusting sleeve, wherein one end of the adjusting sleeve is provided with a threaded mating cavity, the other end of the power push rod is in threaded connection with the threaded mating cavity, and the other end of the adjusting sleeve is connected with the die assembly.
5. The cam adjusting device of claim 1, wherein the radial extrusion assembly further comprises a mounting box, a mounting bearing, a speed reducer and a transmission shaft, wherein an input end of the speed reducer is connected with a rotating shaft end of the driving motor, an output end of the speed reducer is connected with one end of the transmission shaft, the mounting box is arranged at one end of the speed reducer, the transmission shaft is arranged in the mounting box through the mounting bearing, and the cam is arranged on the transmission shaft.
6. The motorized radial wall thickness cam adjustment device of claim 5, wherein the drive shaft is a stepped shaft, and a shoulder on the drive shaft is eccentrically disposed from the shaft end to form the cam portion.
7. The cam adjusting device for electric radial wall thickness according to claim 1, wherein the die assembly comprises a fixed die and an elastic die, the fixed die is arranged on the bracket, the elastic die is arranged at the bottom end of the fixed die, and the outer side of the elastic die is connected with a plurality of groups of pushing connecting parts.
8. The cam adjusting device of claim 7, wherein the die core assembly comprises a fixed die core, an elastic die core and an adjusting die core, the fixed die core is arranged on the inner side of the elastic die, the adjusting die core is arranged on the bottom of the fixed die core, the elastic die core is arranged on the outer side of the adjusting die core, and the forming gap is formed between the adjusting die core and the elastic die.
9. The motorized radial wall thickness cam adjustment device of claim 8, wherein the mold core assembly further comprises a plurality of adjustment bolts uniformly distributed on the bottom of the adjustment mold core, wherein the adjustment bolts are in threaded engagement with the adjustment mold core, and wherein the ends of the adjustment bolts abut against the inner side of the elastic mold core.
10. The motorized radial wall thickness cam adjustment device of claim 2, further comprising a displacement sensor and a sensing plate, wherein the displacement sensor is fixed to one side of the power pushrod, the sensing plate is connected to the power pushrod, and the sensing plate is in contact with a sensing end of the displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321173048.3U CN220095471U (en) | 2023-05-16 | 2023-05-16 | Cam adjusting device of radial wall thickness of electrodynamic type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321173048.3U CN220095471U (en) | 2023-05-16 | 2023-05-16 | Cam adjusting device of radial wall thickness of electrodynamic type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220095471U true CN220095471U (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321173048.3U Active CN220095471U (en) | 2023-05-16 | 2023-05-16 | Cam adjusting device of radial wall thickness of electrodynamic type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220095471U (en) |
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2023
- 2023-05-16 CN CN202321173048.3U patent/CN220095471U/en active Active
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