Driving device for grain cutting device of underwater grain cutting machine

Abstract

The utility model relates to the technical field of underwater pelletizers, and discloses a driving device for a pelletizing device of an underwater pelletizer. The driving part comprises a guide part arranged on the rack, a supporting platform arranged on the guide part in a sliding manner and a driving unit for driving the supporting platform to move; the detection part comprises a position detection piece and an offset detection piece; and the driving unit, the position detection piece and the offset detection piece are electrically connected with the processor. The particle cutting device has the effect of improving the accuracy of the moving position of the particle cutting device.

Description

Technical Field

[0001] The present application relates to the technical field of underwater pelletizers, and particularly to a driving device for a pelletizing device of an underwater pelletizer. Background Art

[0002] An underwater pelletizer is a commonly used device in the plastics industry. The underwater pelletizer cools the molten plastic through flowing cooling water and cuts the molten plastic into pellets in the flowing cooling water.

[0003] Existing underwater pelletizers generally include a frame, a pelletizing device, and a cutting chamber. The frame is fixedly installed on the ground, the pelletizing device is slidably installed on the top of the frame, and the cutting chamber is fixedly installed on the top of the frame. When it is necessary to cut the molten plastic, the cutting device moves on the frame in the direction close to the cutting chamber, and the cutting knife of the pelletizing device is placed inside the cutting chamber, and the molten plastic inside the cutting chamber is cut by the cutting knife of the pelletizing device.

[0004] Currently, when the pelletizing device slides on the frame, generally, the staff directly pushes the pelletizing device to slide on the frame so that the cutting knife of the pelletizing device enters the cutting chamber. However, when the pelletizing device is moved by the staff's push, there are sometimes defects in the inaccurate pushing position of the pelletizing device, thus making it inconvenient to lock the mold between the pelletizing device and the cutting chamber. Summary of the Utility Model

[0005] In order to improve the accuracy of the moving position of the pelletizing device, the present application provides a driving device for a pelletizing device of an underwater pelletizer.

[0006] The driving device for a pelletizing device of an underwater pelletizer provided by the present application adopts the following technical solutions:

[0007] A driving device for a pelletizing device of an underwater pelletizer, the driving device is used to drive the pelletizing device to move, and is characterized in that: the driving device includes;

[0008] A frame;

[0009] A driving part, including a guiding part installed on the frame, a support platform slidably installed on the guiding part, and a driving unit for driving the support platform to move;

[0010] A detecting part, including a position detecting element and an offset detecting element;

[0011] A processor, the driving unit, the position detecting element, and the offset detecting element are all electrically connected to the processor;

[0012] The granulating device is installed on the top of the support platform. The driving unit drives the support platform to slide on the guiding part, and the guiding part guides the support platform. Meanwhile, the position detection part detects the moving distance of the support platform, and the offset detection part detects the tilting state of the support platform.

[0013] Optionally, the guiding part includes two fixing plates vertically installed on the top of the frame and a guiding rod installed between the two fixing plates. The two ends of the guiding rod are fixedly connected to the corresponding fixing plates, and the support platform is slidably matched with the two guiding rods.

[0014] Optionally, the driving part includes a threaded rod passing through the two fixing plates and a driving motor in transmission cooperation with the threaded rod. The threaded rod is in threaded connection with the support platform.

[0015] Optionally, the position detection part includes a measuring block installed on the support platform and a position distance measuring sensor installed on the frame. The position distance measuring sensor is electrically connected to the processor, and the position distance measuring sensor is used to detect the distance between the measuring block and the position distance measuring sensor.

[0016] Optionally, the offset detection part includes a detection strip horizontally installed on the frame through a mounting part and an offset distance measuring sensor installed on the support platform. The offset distance measuring sensor is electrically connected to the processor, and the offset distance measuring sensor is used to detect the distance between the detection strip and the offset distance measuring sensor.

[0017] Optionally, the mounting part includes a mounting plate installed on the frame, a support rod vertically installed on the mounting plate, and a positioning unit installed on the support rod. The bottom of the detection strip is provided with a mounting hole corresponding to the support rod, and the support rod is inserted into the corresponding mounting hole, and the bottom of the detection strip abuts against the top of the positioning unit.

[0018] Optionally, the positioning unit is a positioning nut, and the positioning nut is in threaded connection with the support rod.

[0019] Optionally, magnetic materials are filled at the tops of both the detection strip and the support rod, and the magnetic materials at the tops of the detection strip and the support rod attract each other.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. When it is necessary to move the pelletizing device, the driving motor drives the threaded rod to rotate. The threaded rod and the guide rod cooperate with each other to make the support platform drive the pelletizing device to move. During the movement of the support platform, the position data of the support platform is detected by the position distance measuring sensor and the processor. After the support platform reaches the set position, the processor controls the driving motor to stop working. While the support platform is working, the offset of the support platform is detected by the cooperation of the offset distance measuring sensor and the processor. When the support platform is offset, the processor issues an alarm to the staff, facilitating the staff to perform maintenance in a timely manner, so as to further improve the accuracy of the working position of the pelletizing device. Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0023] Figure 2 is the schematic diagram showing the structure of the driving part in the embodiment of the present application.

[0024] Figure 3 is the schematic diagram showing the positional relationship between the mounting member and the detection strip in the embodiment of the present application.

[0025] Figure 4 is the schematic diagram showing the structure of the detection strip in the embodiment of the present application.

[0026] Description of the Reference Numerals:

[0027] 1, frame; 2, driving part; 21, guiding part; 211, fixing plate; 212, guide rod; 22, support platform; 23, driving unit; 231, threaded rod; 232, driving motor; 3, detection part; 31, position detection member; 311, measuring block; 312, position distance measuring sensor; 32, offset detection member; 321, detection strip; 322, offset distance measuring sensor; 323, mounting hole; 33, mounting member; 331, mounting plate; 332, support rod; 333, positioning unit; 4, processor; 5, pelletizing device. Detailed Embodiment

[0028] The following will Figures 1-4 further describe the present application in detail with reference to the

[0029] The embodiment of the present application discloses a driving device for an underwater pelletizing machine pelletizing device.

[0030] A driving device for a pelletizing device of an underwater pelletizer includes a frame 1, a driving part 2, a detecting part 3 and a processor 4. The frame 1 is fixedly installed on the ground. The driving part 2 includes a guiding part 21, a supporting platform 22 and a driving unit 23. The detecting part 3 includes a position detecting member 31 and an offset detecting member 32. The processor 4 is fixedly installed on the frame 1, and the driving unit 23, the position detecting member 31 and the offset detecting member 32 are all electrically connected to the processor 4.

[0031] The pelletizing device 5 is fixedly installed on the top of the supporting platform 22. The driving unit 23 drives the supporting platform 22 to slide on the guiding part 21. During the movement of the supporting platform 22, the guiding part 21 guides the moving direction of the supporting platform 22. During the movement of the supporting platform 22, the position detecting member 31 is used to detect the moving position of the supporting platform 22 in real time, and the offset detecting member 32 is used to detect the tilting state of the supporting platform 22.

[0032] The guiding part 21 includes a fixing plate 211 and a guiding rod 212.

[0033] There are two fixing plates 211. The two fixing plates 211 are parallel to each other and are both vertically arranged. The guiding rod 212 is located between the two fixing plates 211. There are two guiding rods 212. The two guiding rods 212 are parallel to each other. The end of each guiding rod 212 is perpendicular to the corresponding fixing plate 211, and the end of each guiding rod 212 is fixedly connected to the corresponding fixing plate 211. The supporting platform 22 is horizontally installed on the two guiding rods 212, and the supporting platform 22 is in sliding fit with the guiding rods 212.

[0034] The driving part 2 includes a threaded rod 231 and a driving motor 232. The threaded rod 231 is located between the two guiding rods 212. The threaded rod 231 is parallel to the two guiding rods 212. The two ends of the threaded rod 231 penetrate through the corresponding fixing plates 211. The threaded rod 231 is in rotational fit with the corresponding fixing plates 211. The threaded rod 231 is in threaded connection with the supporting platform 22. The motor shaft of the driving motor 232 is fixedly connected to the end of the threaded rod 231. In the embodiment of the present application, the driving motor 232 is a servo motor.

[0035] When it is necessary to drive the supporting platform 22 to move, the driving motor 232 makes the supporting platform 22 move through the cooperation of the threaded rod 231 and the guiding rods 212, thereby improving the convenience of the movement of the supporting platform 22.

[0036] The driving part 2 can also be a cylinder and an oil cylinder. The pushing end of the cylinder or the oil cylinder is fixedly connected to the supporting platform 22. By changing the overall length of the cylinder or the oil cylinder, the supporting platform 22 is made to slide on the guiding rods 212.

[0037] The position detection component 31 includes a measuring block 311 and a position ranging sensor 312. The measuring block 311 is fixedly installed at the bottom of the support platform 22, and the position ranging sensor 312 is installed at the top of the frame 1. In the embodiment of the present application, the position ranging sensor 312 is an infrared laser ranging sensor, and the position ranging sensor 312 is electrically connected to the processor 4.

[0038] The distance data between the measuring block 311 and the position ranging sensor 312 is measured by the position ranging sensor 312, and the measured data is transmitted to the processor 4. After the support platform 22 reaches the set position, the processor 4 controls the driving motor 232 to stop working.

[0039] The offset detection component 32 includes a detection strip 321 and an offset ranging sensor 322. The detection strip 321 is horizontally installed on the top of the frame 1, and the length direction of the detection strip 321 is consistent with the moving direction of the support platform 22. The offset ranging sensor 322 is fixedly installed on the support platform 22 and is located directly above the detection strip 321. The offset ranging sensor 322 is electrically connected to the processor 4. In the embodiment of the present application, the offset ranging sensor 322 is an infrared laser ranging sensor.

[0040] During the operation of the support platform 22, the distance data between the detection strip 321 and the offset ranging sensor 322 is measured in real time by the offset ranging sensor 322, and the measured data signal is transmitted to the processor 4. When the measured data changes, the processor 4 issues an alarm to the staff, so as to facilitate the staff to repair the equipment. Thus, the possibility that the guide rod 212 deforms during long-term pressured work and causes the support platform 22 to shift with the pelletizing device 5 is reduced.

[0041] The detection strip 321 is fixedly installed on the frame 1 through the mounting member 33. The mounting member 33 includes a mounting plate 331, a support rod 332, and a positioning unit 333. The mounting plate 331 is fixedly installed on the frame 1. A plurality of support rods 332 are provided. The plurality of support rods 332 are distributed along the length direction of the detection strip 321, and each support rod 332 is vertically arranged. The bottom of each support rod 332 is fixedly connected to the mounting plate 331.

[0042] The bottom of the detection strip 321 is provided with mounting holes 323 corresponding to the plurality of support rods 332. The support rods 332 are inserted and matched with the corresponding mounting holes 323. The detection strip 321 is supported by the support rods 332, reducing the possibility of the detection strip 321 bending. In order to further improve the placement stability of the detection strip 321, magnetic materials are filled at the tops of the detection strip 321 and the support rods 332, and the magnetic materials at the tops of the detection strip 321 and the support rods 332 attract each other.

[0043] A number of positioning units 333 are provided. The number of positioning units 333 corresponds to the number of support rods 332. Each positioning unit 333 includes two positioning nuts. The two positioning nuts are threadedly connected to the support rod 332, and the top of the uppermost positioning nut abuts against the bottom of the detection strip 321.

[0044] The detection strip 321 is initially positioned by the support rod 332. Then, the detection strip 321 is leveled by the positioning nuts, and the detection strip 321 is supported by the positioning nuts, improving the working stability of the detection strip 321. The two nuts reduce the possibility that one of the nuts rotates due to accidental contact, resulting in inaccurate positioning height of the positioning nut.

[0045] The implementation principle of the driving device for the underwater pelletizer pelletizing device in the embodiment of the present application is as follows: When it is necessary to move the pelletizing device 5, the driving motor 232 drives the threaded rod 231 to rotate. The threaded rod 231 and the guide rod 212 cooperate with each other to drive the support platform 22 to drive the pelletizing device 5 to move. During the movement of the support platform 22, the position data of the support platform 22 is detected by the position ranging sensor 312 and the processor 4. After the support platform 22 reaches the set position, the processor 4 controls the driving motor 232 to stop working. While the support platform 22 is working, the offset of the support platform 22 is detected by the cooperation of the offset ranging sensor 322 and the processor 4. When the support platform 22 is offset, the processor 4 issues an alarm to the staff, facilitating the staff to perform maintenance in a timely manner, thereby further improving the accuracy of the working position of the pelletizing device 5.

[0046] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A driving device for a pelletizing device of an underwater pelletizer, the driving device being used to drive the pelletizing device (5) to move, characterized in that: The driving device includes: a frame (1); a driving part (2), including a guiding part (21) installed on the frame (1), a supporting platform (22) slidably installed on the guiding part (21), and a driving unit (23) for driving the supporting platform (22) to move; a detecting part (3), including a position detecting member (31) and an offset detecting member (32); a processor (4), wherein the driving unit (23), the position detecting member (31), and the offset detecting member (32) are all electrically connected to the processor (4); The pelletizing device (5) is installed on the top of the supporting platform (22). The driving unit (23) drives the supporting platform (22) to slide on the guiding part (21). The guiding part (21) guides the supporting platform (22). Meanwhile, the position detecting member (31) detects the moving distance of the supporting platform (22), and the offset detecting member (32) detects the tilting state of the supporting platform (22).

2. The driving device for the granulation device of an underwater pelletizer according to claim 1, characterized in that: The guiding part (21) includes two fixing plates (211) vertically installed on the top of the frame (1) and a guiding rod (212) installed between the two fixing plates (211). Both ends of the guiding rod (212) are fixedly connected to the corresponding fixing plates (211), and the supporting platform (22) is slidably engaged with the two guiding rods (212).

3. The driving device for the pelletizing device of an underwater pelletizer according to claim 2, characterized in that: The driving part (2) includes a threaded rod (231) passing through the two fixing plates (211) and a driving motor (232) in transmission cooperation with the threaded rod (231). The threaded rod (231) is threadedly connected to the supporting platform (22).

4. The driving device for the pelletizing device of an underwater pelletizer according to claim 2, characterized in that: The position detecting member (31) includes a measuring block (311) installed on the supporting platform (22) and a position distance measuring sensor (312) installed on the frame (1). The position distance measuring sensor (312) is electrically connected to the processor (4), and the position distance measuring sensor (312) is used to detect the distance between the measuring block (311) and the position distance measuring sensor (312).

5. The driving device for the granulation device of an underwater pelletizer according to claim 2, characterized in that: The offset detecting member (32) includes a detecting strip (321) horizontally installed on the frame (1) through a mounting member (33) and an offset distance measuring sensor (322) installed on the supporting platform (22). The offset distance measuring sensor (322) is electrically connected to the processor (4), and the offset distance measuring sensor (322) is used to detect the distance between the detecting strip (321) and the offset distance measuring sensor (322).

6. The driving device for the granulation device of an underwater pelletizer according to claim 5, characterized in that: The mounting member (33) includes a mounting plate (331) mounted on the frame (1), a support rod (332) vertically mounted on the mounting plate (331), and a positioning unit (333) mounted on the support rod (332). An installation hole (323) corresponding to the support rod (332) is formed at the bottom of the detection strip (321). The support rod (332) is inserted and matched with the corresponding installation hole (323), and the bottom of the detection strip (321) abuts against the top of the positioning unit (333).

7. A driving device for a pelletizing device of an underwater pelletizer, characterized in that: The positioning unit (333) is a positioning nut, and the positioning nut is threadedly connected to the support rod (332).

8. The driving device for the pelletizing device of an underwater pelletizer according to claim 6, characterized in that: Magnetic materials are filled at the tops of both the detection strip (321) and the support rod (332), and the magnetic materials at the tops of the detection strip (321) and the support rod (332) attract each other.

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