Electric horizontal type axial parison wall thickness control device

Abstract

The utility model discloses an electric horizontal type axial parison wall thickness control device which comprises a driving assembly, a mounting bottom plate, an eccentric shaft, a telescopic assembly and a connector, the driving assembly is arranged on the mounting bottom plate and connected with one end of the eccentric shaft, one end of the telescopic assembly is movably connected to the outer side of the eccentric shaft, and the other end of the telescopic assembly is connected with the connector. The other end of the telescopic assembly penetrates through the mounting bottom plate to be connected with a connector, and a connecting part is arranged at the tail end of the connector. The driving assembly drives the eccentric shaft to rotate, so that the telescopic assembly drives the connector core-pulling rod to do linear telescopic motion, and dynamic change of a discharging gap of the machine head is achieved. The driving assembly drives the eccentric shaft to rotate, the eccentric shaft is matched with the telescopic assembly when rotating, the connector core-pulling rod is driven to linearly stretch out and draw back, and dynamic changes of a discharging gap of a machine head can be achieved. Compared with the prior art, the utility model has the characteristics of simple and light structure and low installation height, and is suitable for occasions with limited equipment installation height.

Description

Technical Field

[0001] The utility model relates to the field of plastic molding equipment, in particular to an electric horizontal parison wall thickness device. Background Art

[0002] In the process of plastic extrusion blow molding, in order to optimize the wall thickness and distribution of the blow-molded products, an axial parison wall thickness control device is usually used to achieve this goal. The axial parison wall thickness control device usually pulls the mold core through a driving force, so that the discharge gap between the die and the mold core can be dynamically adjusted, thereby achieving the purpose of dynamically adjusting the parison wall thickness. Most of the axial parison wall thickness control devices currently on the market are installed vertically. Vertical installation will cause the equipment to be too high and require high height space for the factory building. At the same time, vertical installation will greatly increase the strength requirements of the parison wall thickness control device and the head-up platform when used in equipment with a continuous extruder head with a head-up function due to the high center of gravity of the parison wall thickness control device. Utility Model Content

[0003] The utility model aims to provide an electric horizontal axial parison wall thickness control device to solve one or more technical problems existing in the above-mentioned background technology.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] An electric horizontal axial blank wall thickness control device comprises a driving assembly, a mounting base plate, an eccentric shaft, a telescopic assembly and a connecting head, wherein the driving assembly is arranged on the mounting base plate, the rotating end of the driving assembly is connected to one end of the eccentric shaft, one end of the telescopic assembly is movably connected to the outer side of the eccentric shaft, the other end of the telescopic assembly passes through the mounting base plate and is connected to the connecting head, a connecting part is provided at the end of the connecting head, and the connecting part is used to connect to a joint core pulling rod, and the driving assembly drives the eccentric shaft to make a rotational motion so that the telescopic assembly drives the joint core pulling rod to make a linear telescopic motion to realize the dynamic change of the machine head discharge gap.

[0006] Preferably, the telescopic assembly includes a connecting rod, a lower shaft, a roller bearing and a bearing seat, the inner side of the roller bearing is sleeved on the outer side of the eccentric part of the eccentric shaft, the outer side of the roller bearing is embedded in one end of the connecting rod, the other end of the connecting rod is movably connected to the connecting head through the lower shaft, the bearing seat is arranged on the upper side of the mounting base plate, and the neck portion of the eccentric shaft is movably connected to the bearing seat.

[0007] Preferably, the telescopic assembly further comprises a guide seat, the guide seat is arranged on the lower side of the mounting base plate, the guide seat is provided with a limiting hole which passes through from top to bottom, and the connecting head is slidably connected to the limiting hole.

[0008] Preferably, an electronic ruler is further included, the connecting portion includes a connecting flange, the connecting flange is connected to the end of the connecting head, the electronic ruler is arranged on one side of the guide seat, and the connecting flange is connected to the measuring end of the electronic ruler.

[0009] Preferably, the driving assembly includes a servo motor, a reducer and a coupling, the rotating shaft end of the servo motor is connected to the input end of the reducer, and the output end of the reducer is connected to one end of the eccentric shaft through the coupling.

[0010] Preferably, it further comprises a reducer seat, wherein the reducer seat is arranged on the upper side of the mounting base plate, and the reducer is fixed on the reducer seat.

[0011] The beneficial effects of the utility model are as follows: the eccentric shaft is driven to make a rotational motion by the driving assembly, and the eccentric shaft is rotated in cooperation with the telescopic assembly to drive the joint core pulling rod to make a linear telescopic motion, thereby realizing the dynamic change of the discharge gap of the machine head; compared with the prior art, the utility model has the characteristics of simple structure, light weight and low installation height, and is suitable for occasions where the equipment installation height is limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings further illustrate the present invention, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0013] Figure 1 It is a schematic diagram of the overall structure of one embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of one embodiment of the utility model.

[0015] Among them: drive assembly 1, mounting base plate 2, eccentric shaft 3, telescopic assembly 4, connector 5, connecting rod 41, lower spindle 42, roller bearing 43, bearing seat 44, eccentric part 31, shaft neck 32, guide seat 45, limit hole 451, electronic ruler 6, connecting flange 7, servo motor 11, reducer 12, coupling 13, reducer seat 21. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0017] An electric horizontal axial parison wall thickness control device of this embodiment is shown in the attached Figure 1, including a driving component 1, a mounting base plate 2, an eccentric shaft 3, a telescopic component 4 and a connecting head 5. The driving component 1 is arranged on the mounting base plate 2, the rotating end of the driving component 1 is connected to one end of the eccentric shaft 3, one end of the telescopic component 4 is movably connected to the outer side of the eccentric shaft 3, the other end of the telescopic component 4 passes through the mounting base plate 2 and is connected to the connecting head 5, and a connecting part is provided at the end of the connecting head 5, which is used to connect with the joint core pulling rod. The driving component 1 drives the eccentric shaft 3 to make a rotational motion so that the telescopic component 4 drives the joint core pulling rod to make a linear telescopic motion to realize the dynamic change of the machine head discharge gap.

[0018] By driving the eccentric shaft 3 to make a rotational motion through the driving component 1, and utilizing the cooperation between the eccentric shaft 3 and the telescopic component 4 when rotating, the joint core pulling rod is driven to make a linear telescopic motion, thereby realizing the dynamic change of the machine head discharge gap; by installing the driving component 1 on the mounting base plate 2, and positioning one end of the telescopic component 4 on the upper side of the mounting base plate 2, and the other end of the telescopic component 4 passing through the mounting base plate 2 and connected to the connecting head 5 on the lower side of the mounting base plate 2, the blank wall thickness control device of this embodiment has the characteristics of simple structure, light weight, and low installation height, and is suitable for occasions where the equipment installation height is limited.

[0019] The eccentric shaft 3 is an integrally manufactured stepped shaft, on which an eccentric portion 31 and a journal 32 are provided. The journal 32 is provided at both ends of the eccentric portion 31 for ease of processing.

[0020] Preferably, refer to the attached Figure 2 The telescopic assembly 4 includes a connecting rod 41, a lower spindle 42, a roller bearing 43 and a bearing seat 44. The inner side of the roller bearing 43 is sleeved on the outer side of the eccentric portion 31 of the eccentric shaft 3. The outer side of the roller bearing 43 is embedded in one end of the connecting rod 41. The other end of the connecting rod 41 is movably connected to the connecting head 5 through the lower spindle 42. The bearing seat 44 is arranged on the upper side of the mounting base 2. The journal 32 of the eccentric shaft 3 is movably connected to the bearing seat 44. The two ends of the connecting rod 41 are movably connected to the eccentric shaft 3 and the connecting head 5 respectively, so that when the eccentric shaft 3 rotates to drive one end of the connecting rod 41 to swing, the other end of the connecting rod 41 drives the connecting head 5 to perform telescopic movement. The setting of the roller bearing 43 realizes the movably connection between one end of the connecting rod 41 and the eccentric shaft 3, and the setting of the lower spindle 42 realizes the movably connection between the other end of the connecting rod 41 and the connecting head 5. The bearing seat 44 is used to support the eccentric shaft 3.

[0021] Furthermore, the telescopic assembly 4 also includes a guide seat 45, which is arranged on the lower side of the mounting base plate 2. The guide seat 45 is provided with a limit hole 451 which passes through from top to bottom, and the connector 5 is slidably connected to the limit hole 451. Therefore, by providing the guide seat 45 and making the connector 5 slidably connected to the limit hole 451 of the guide seat 45, the radial movement of the connector 5 is limited, so that when the eccentric shaft 3 rotates to drive one end of the connecting rod 41 to swing, the other end of the connecting rod 41 drives the connector 5 to perform telescopic movement under the limit of the guide seat 45, thereby driving the joint core pulling rod to perform linear telescopic movement to realize the dynamic change of the discharge gap of the machine head.

[0022] Preferably, it further comprises an electronic ruler 6, the connection part comprises a connecting flange 7, the connecting flange 7 is connected to the end of the connector 5, the electronic ruler 6 is arranged on one side of the guide seat 45, and the connecting flange 7 is connected to the measuring end of the electronic ruler 6. By providing the connecting flange 7, the connector 5 is detachably connected to the joint core-pulling rod, which is convenient for replacing the joint core-pulling rod; the electronic ruler 6 is arranged on the guide seat 45 to fix the electronic ruler 6, and the connecting flange 7 is connected to the measuring end of the electronic ruler 6, so that when the connector 5 drives the connecting flange 7 to change position, the electronic ruler 6 detects the specific expansion and contraction amount of the connector 5, which is convenient for monitoring the change of the discharge gap of the machine head.

[0023] Preferably, the drive assembly 1 includes a servo motor 11 , a reducer 12 and a coupling 13 , the rotating shaft end of the servo motor 11 is connected to the input end of the reducer 12 , and the output end of the reducer 12 is connected to one end of the eccentric shaft 3 through the coupling 13 .

[0024] Furthermore, it also includes a reducer base 21, which is arranged on the upper side of the mounting base 2, and the reducer 12 is fixed on the reducer base 21. By arranging the reduction base on the upper side of the mounting base 2 and fixing the reducer 12 on the reduction base, the servo motor 11, the reducer 12 and the coupling 13 are installed horizontally, which reduces the overall installation height of the device, so that the device of this embodiment can be applied to occasions where the installation height is limited.

[0025] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. An electric horizontal axial parison wall thickness control device, characterized in that: It includes a driving component, a mounting base plate, an eccentric shaft, a telescopic component and a connecting head, wherein the driving component is arranged on the mounting base plate, the rotating end of the driving component is connected to one end of the eccentric shaft, one end of the telescopic component is movably connected to the outer side of the eccentric shaft, the other end of the telescopic component passes through the mounting base plate and is connected to the connecting head, a connecting part is provided at the end of the connecting head, and the connecting part is used to connect with a joint core pulling rod, and the driving component drives the eccentric shaft to make a rotational motion so that the telescopic component drives the joint core pulling rod to make a linear telescopic motion to realize the dynamic change of the discharge gap of the machine head.

2. The electric horizontal axial parison wall thickness control device according to claim 1, characterized in that: The telescopic assembly includes a connecting rod, a lower spindle, a roller bearing and a bearing seat. The inner side of the roller bearing is sleeved on the outer side of the eccentric part of the eccentric shaft, and the outer side of the roller bearing is embedded in one end of the connecting rod. The other end of the connecting rod is movably connected to the connecting head through the lower spindle. The bearing seat is arranged on the upper side of the mounting base plate, and the neck of the eccentric shaft is movably connected to the bearing seat.

3. The electric horizontal axial parison wall thickness control device according to claim 1, characterized in that: The telescopic assembly also includes a guide seat, which is arranged on the lower side of the mounting base plate. The guide seat is provided with a limiting hole which passes through from top to bottom, and the connecting head is slidably connected to the limiting hole.

4. The electric horizontal axial parison wall thickness control device according to claim 3, characterized in that: It also includes an electronic ruler, the connecting part includes a connecting flange, the connecting flange is connected to the end of the connecting head, the electronic ruler is arranged on one side of the guide seat, and the connecting flange is connected to the measuring end of the electronic ruler.

5. The electric horizontal axial parison wall thickness control device according to claim 1, characterized in that: The driving assembly includes a servo motor, a reducer and a coupling. The rotating shaft end of the servo motor is connected to the input end of the reducer, and the output end of the reducer is connected to one end of the eccentric shaft through the coupling.

6. The electric horizontal axial parison wall thickness control device according to claim 5, characterized in that: It also includes a reducer seat, which is arranged on the upper side of the mounting base plate, and the reducer is fixed on the reducer seat.

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