Pneumatic grinding device for polyurethane resin

Abstract

The utility model relates to the technical field of polyurethane resin grinding, and discloses a pneumatic polyurethane resin grinding device which comprises a grinding barrel, and a movable mechanism is arranged on the inner wall of the grinding barrel. The movable mechanism comprises a supporting plate, a connecting plate is fixedly connected to the inner wall of the grinding barrel, reciprocating lead screws are rotationally connected to the inner wall of the connecting plate and the inner wall of the supporting plate correspondingly, a connecting mechanism is arranged at the top ends of the reciprocating lead screws, movable blocks are slidably connected to the outer walls of the reciprocating lead screws, and connecting plates are rotationally connected to the left side and the right side of each movable block correspondingly. Slopes are fixedly connected to the inner walls of the left side and the right side of the grinding barrel correspondingly, guide rods and directional rods are fixedly connected to the top ends of the slopes correspondingly, and a cleaning assembly is arranged at the bottom end of the movable block. According to the device disclosed by the utility model, when the grinder grinds, the reciprocating screw rod rotates to drive the long cleaning plate and the short cleaning plate to move, so that the urethane resin on the slope is discharged downwards to be ground, and the grinding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyurethane resin grinding technical field especially relates to a kind of polyurethane resin pneumatic grinding device. BACKGROUND

[0002] Urethane resin is made by the step-by-step polymerization reaction of polyisocyanate and polyol (including polyester polyol and polyether polyol), which has the advantages of wide hardness range, good wear resistance and chemical resistance, etc. In order to remove defects or make it more glossy, urethane resin is usually ground.

[0003] After searching, Chinese patent publication No. CN222057600U discloses a special polyurethane resin production pneumatic grinding equipment, which includes a pneumatic assembly, a grinding assembly, a discharge bin assembly, and a foot. The pneumatic assembly housing is connected to an exhaust pipe radially and horizontally, and the pneumatic assembly is connected to an air inlet pipe. The pneumatic assembly is centrally installed with a pneumatic impeller, and the pneumatic impeller shaft is provided with a first rotating shaft, and the lower end of the first rotating shaft is connected with a hydraulic arm. The pneumatic assembly is connected below the grinding assembly, the grinding assembly housing is connected with a feed pipe, the feed pipe is provided with a first electromagnetic valve, the grinding assembly bottom is provided with a grinding ring, and the pneumatic assembly is provided with a grinder inside. The discharge bin assembly is connected below the grinding assembly, the discharge bin assembly is connected with a purge pipe, the purge pipe is connected with a second electromagnetic valve, the conical material collecting groove bottom is provided with a discharge pipe, and the discharge pipe is provided with a third electromagnetic valve. The device proposed in the utility model is driven by air, suitable for long-time grinding; the grinding particle size can be adjusted to meet different production needs.

[0004] The above technology has certain improvement, but when the polyurethane resin is located on the grinding ring, due to the certain viscosity of the polyurethane resin itself, the ungrounded polyurethane resin will adhere to the grinding ring after accumulating on the grinding ring. At this time, it is difficult to rely on gravity to discharge the adhered polyurethane resin to the grinder for grinding, thus affecting the overall grinding efficiency. Therefore, a polyurethane resin pneumatic grinding device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a polyurethane resin pneumatic grinding device, which aims to improve the problem that urethane resin will accumulate on the grinding ring due to its own viscosity in the prior art, thereby affecting the grinding efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a polyurethane resin pneumatic grinding device, comprising a grinding barrel, the inner wall of the grinding barrel is provided with a movable mechanism;

[0007] The activity mechanism comprises a support plate, the inner wall of the grinding barrel is fixedly connected with a connecting plate, the inner wall of the support plate is rotationally connected with a reciprocating screw rod, the top end of the reciprocating screw rod is provided with a connecting mechanism, the outer wall of the reciprocating screw rod is slidably connected with a movable block, the left and right sides of the movable block are rotationally connected with a connecting plate, the left and right inner walls of the grinding barrel are fixedly connected with an inclined plane, the top end of the inclined plane is fixedly connected with a guide rod and a directional rod respectively, the outer wall of the guide rod is slidably connected with a cleaning long plate, the outer wall of the directional rod is slidably connected with a cleaning short plate, and the bottom end of the movable block is provided with a cleaning assembly.

[0008] As a further description of the above technical solution:

[0009] The cleaning assembly comprises a cleaning plate, the top end of the cleaning plate is fixedly connected to the bottom end of the movable block, and the brush surface of the cleaning plate is in contact with the thread groove of the reciprocating screw rod.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the support plate is fixedly connected to the inner wall of the grinding barrel, and the cleaning long plate and the cleaning short plate are fixedly connected through the telescopic rod.

[0012] As a further description of the above technical solution:

[0013] One end of the telescopic rod is fixedly connected to the outer wall of the cleaning short plate, and the other end of the telescopic rod is fixedly connected to the outer wall of the cleaning long plate.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the cleaning long plate and the cleaning short plate is in contact with the top end of the inclined plane, and the bottom end of the connecting plate is rotationally connected to the outer wall of the cleaning long plate.

[0016] As a further description of the above technical solution:

[0017] The cleaning long plate, the cleaning short plate and the connecting plate are all provided in a triangular shape.

[0018] As a further description of the above technical solution:

[0019] The top end of the grinding barrel is fixedly connected with a pneumatic box, the bottom end inner wall of the pneumatic box is rotationally connected with a hydraulic arm, the bottom end of the hydraulic arm is fixedly connected with a grinder, the connecting mechanism comprises a rotating column, and the top end outer wall of the hydraulic arm is drivingly connected with the rotating column through a belt.

[0020] As a further description of the above technical solution:

[0021] The bottom end of the rotating column is fixedly connected to the top end of the reciprocating wire rod, and the top end of the rotating column is rotatably connected to the inner wall of the top end of the grinding barrel.

[0022] The utility model has the advantages of:

[0023] 1、The utility model discloses a grinding barrel, a grinder and a movable mechanism are cooperated with each other, when the grinder grinds, the reciprocating wire rod rotates to drive the cleaning long plate and the cleaning short plate to move, so that the urethane resin on the slope is discharged downward to grind, thereby improving the grinding efficiency.

[0024] 2、The hydraulic arm and the connecting mechanism are cooperated with each other, and the hydraulic arm itself can grind and rotate, thereby driving the movable mechanism to move, so that other electric control equipment is avoided, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole three-dimensional schematic view of the polyurethane resin pneumatic grinding device;

[0026] Figure 2 It is a grinding barrel section internal schematic view of the polyurethane resin pneumatic grinding device;

[0027] Figure 3 It is a whole three-dimensional schematic view of the belt of the polyurethane resin pneumatic grinding device;

[0028] Figure 4 It is a whole three-dimensional schematic view of the connecting plate of the polyurethane resin pneumatic grinding device;

[0029] Figure 5 It is a whole three-dimensional schematic view of the reciprocating wire rod of the polyurethane resin pneumatic grinding device;

[0030] Figure 6 It is an enlarged structural schematic view of A of the polyurethane resin pneumatic grinding device.

[0031] LEGEND:

[0032] 1, grinding barrel;2, pneumatic box;3, connecting mechanism;301, belt;302, rotating column;4, movable mechanism;401, reciprocating wire rod;402, connecting plate;403, guide rod;404, directional rod;405, support plate;406, link plate;407, cleaning long plate;408, cleaning short plate;409, movable block;410, cleaning plate;411, telescopic rod;5, hydraulic arm;6, grinder;7, slope. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0034] With reference to Figure 1 - Figure 3 An embodiment provided by the present application: a polyurethane resin pneumatic grinding device, comprising a grinding barrel 1, the bottom end of the grinding barrel 1 is provided with a supporting leg, the bottom end is provided with a discharge port, the outer wall is provided with a feeding port, the inner wall of the grinding barrel 1 is provided with a moving mechanism 4; the polyurethane resin can be better ground through the setting of the moving mechanism 4, the moving mechanism 4 comprises a supporting plate 405, the inner wall of the grinding barrel 1 is fixedly connected with a connecting plate 406, the inner wall of the connecting plate 406 and the supporting plate 405 is rotatably connected with a reciprocating screw rod 401, the connecting plate 406 and the supporting plate 405 can support the reciprocating screw rod 401, the reciprocating screw rod 401 passes through screw grooves with the same pitch and opposite rotation directions, and through the rotation of the screw rod, the corresponding sliding block is pushed to reciprocate in the axial direction, which is prior art and will not be explained too much, the top end of the reciprocating screw rod 401 is provided with a connecting mechanism 3, the reciprocating screw rod 401 is driven to rotate through the setting of the connecting mechanism 3, the outer wall of the reciprocating screw rod 401 is slidably connected with a moving block 409, the moving block 409 is vertically reciprocated through the setting of the screw groove, the left and right sides of the moving block 409 are rotatably connected with a connecting plate 402, when the moving block 409 moves, the connecting plate 402 will rotate at this time, the left and right inner walls of the grinding barrel 1 are fixedly connected with an inclined plane 7, the setting of the inclined plane 7 can make the polyurethane resin discharge, the top end of the inclined plane 7 is fixedly connected with a guide rod 403 and a directional rod 404 respectively, the guide rod 403 and the directional rod 404 both play a guiding role, the outer wall of the guide rod 403 is slidably connected with a cleaning long plate 407, the outer wall of the directional rod 404 is slidably connected with a cleaning short plate 408, the cleaning long plate 407 and the cleaning short plate 408 are moved through the setting of the guide rod 403 and the directional rod 404, so that the polyurethane resin on the inclined plane 7 is dredged, so that the grinding process is facilitated, and the bottom end of the moving block 409 is provided with a cleaning assembly, the reciprocating screw rod 401 can be cleaned through the cleaning assembly.

[0035] With reference to Figure 4 - Figure 6The cleaning assembly comprises a cleaning plate 410, the top end of the cleaning plate 410 is fixedly connected to the bottom end of the movable block 409, the two are fixed so that the cleaning plate 410 can be driven to move to perform the cleaning operation, the brush surface of the cleaning plate 410 contacts the threaded groove of the reciprocating screw rod 401, the two contact each other to perform the cleaning action, the outer wall of the supporting plate 405 is fixedly connected to the inner wall of the grinding barrel 1, the two are fixed to support the supporting plate 405, the cleaning long plate 407 and the cleaning short plate 408 are fixedly connected through the telescopic rod 411, the movement of the cleaning long plate 407 drives the cleaning short plate 408 to move, and the distance between the two can be adjusted to better clean the slope 7, one end of the telescopic rod 411 is fixedly connected to the outer wall of the cleaning short plate 408, the other end of the telescopic rod 411 is fixedly connected to the outer wall of the cleaning long plate 407, the cleaning short plate 408 and the cleaning long plate 407 are arranged in a staggered manner, and the staggered arrangement avoids movement interference.

[0036] With reference to Figure 2 - Figure 4 The bottom end of the cleaning long plate 407 and the cleaning short plate 408 contacts the top end of the slope 7, the contact arrangement enables the polyurethane resin on the slope 7 to be better discharged for grinding, the bottom end of the connecting plate 402 is rotatably connected to the outer wall of the cleaning long plate 407, the rotational arrangement enables the cleaning long plate 407 to move when the connecting plate 402 rotates, the cleaning long plate 407, the cleaning short plate 408 and the connecting plate 406 are all arranged in a triangular shape, the triangular arrangement of the cleaning long plate 407 and the cleaning short plate 408 enables the polyurethane resin to move downward along the slope when the cleaning long plate 407 and the cleaning short plate 408 move upward, and the triangular arrangement of the connecting plate 406 facilitates the polyurethane resin cleaned out to be discharged to the slope 7.

[0037] With reference to Figure 1 - Figure 3, the top end of the grinding barrel 1 is fixedly connected with a pneumatic box 2, the inner wall of the pneumatic box 2 is provided with a throttle valve, the throttle valve is connected with a high-pressure gas source, the throttle valve can control the air inlet amount, which is prior art and will not be explained here, the bottom end of the inner wall of the pneumatic box 2 is rotatably connected with a hydraulic arm 5, the bottom end of the hydraulic arm 5 is fixedly connected with a grinder 6, the hydraulic arm 5 can rotate and also can adjust the vertical position of the grinder 6, at the same time, the grinder 6 is rotated to cooperate with the slope 7, so that the grinding operation can be completed, which is prior art and will not be explained here, the connecting mechanism 3 includes a rotating column 302, the top end of the rotating column 302 is drivingly connected with the outer wall of the top end of the hydraulic arm 5 through a belt 301, the belt 301 is provided with two groups, and the pulley between the middle is slightly larger than the pulley on both sides, so that the belt 301 can move, the bottom end of the rotating column 302 is fixedly connected on the top end of a reciprocating screw rod 401, the hydraulic arm 5 is rotated to drive the belt 301 to move, the reciprocating screw rod 401 is moved by the rotation of the existing hydraulic arm 5, the top end of the rotating column 302 is rotatably connected on the inner wall of the top end of the grinding barrel 1, and the rotating column 302 is rotatably connected on the inner wall of the top end of the grinding barrel 1.

[0038] Working principle: the high-pressure gas source is connected with the throttle valve in the pneumatic box 2 to provide power source for the whole device, during the grinding process, the hydraulic arm 5 starts to work, the hydraulic arm 5 can adjust the vertical position of the grinder 6 on one hand, so that the appropriate gap is formed between the grinder 6 and the slope 7 to control the grinding granularity, on the other hand, the hydraulic arm 5 is rotated, and the rotation of the hydraulic arm 5 drives the rotating column 302 connected with the hydraulic arm 5 to rotate through the belt 301.

[0039] When the reciprocating screw rod 401 rotates, the movable block 409 connected with the outer wall of the screw rod in a sliding mode will vertically reciprocate under the action of the screw groove with the same pitch and opposite rotation direction. The connecting plate 402 connected with the left and right sides of the movable block 409 in a rotating mode will rotate with the movement of the movable block 409. Since the bottom end of the connecting plate 402 is connected with the outer wall of the cleaning long plate 407 in a rotating mode, when the movable block 409 vertically reciprocates, the cleaning long plate 407 will slide along the guide rod 403. At the same time, the cleaning short plate 408 will move along the directional rod 404 synchronously with the cleaning long plate 407 through the connecting action of the telescopic rod 411, and the distance between the cleaning long plate 407 and the cleaning short plate 408 can be adjusted through the telescopic rod 411. The cleaning long plate 407 and the cleaning short plate 408 are both triangular and contact with the top end of the slope 7, and their movement can dredge the polyurethane resin on the slope 7, facilitate grinding, and when the cleaning long plate 407 and the cleaning short plate 408 move upward, the polyurethane resin can move downward along the slope. In addition, the cleaning plate 410 fixed at the bottom end of the movable block 409 will move with the movement of the movable block 409, and the brush surface thereof contacts with the screw groove of the reciprocating screw rod 401, thereby cleaning the screw groove and preventing materials from adhering and accumulating on the screw rod.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A pneumatic grinding device for polyurethane resin, comprising a grinding barrel (1), characterized in that: The inner wall of the grinding barrel (1) is provided with a movable mechanism (4); The active mechanism (4) includes a support plate (405), a connecting plate (406) is fixedly connected to the inner wall of the grinding barrel (1), a reciprocating screw (401) is rotatably connected to the inner walls of the connecting plate (406) and the support plate (405), a connecting mechanism (3) is provided at the top of the reciprocating screw (401), a movable block (409) is slidably connected to the outer wall of the reciprocating screw (401), a connecting plate (402) is rotatably connected to the left and right sides of the movable block (409), a ramp (7) is fixedly connected to the inner walls of the left and right sides of the grinding barrel (1), a guide rod (403) and a directional rod (404) are fixedly connected to the top of the ramp (7), a cleaning long plate (407) is slidably connected to the outer wall of the guide rod (403), a cleaning short plate (408) is slidably connected to the outer wall of the directional rod (404), and a cleaning component is provided at the bottom of the movable block (409).

2. The polyurethane resin pneumatic grinding device according to claim 1, characterized in that: The cleaning assembly includes a cleaning plate (410), the top of which is fixedly connected to the bottom of the movable block (409), and the brush surface of the cleaning plate (410) contacts the threaded groove of the reciprocating screw (401).

3. The polyurethane resin pneumatic grinding device according to claim 1, characterized in that: The outer wall of the support plate (405) is fixedly connected to the inner wall of the grinding barrel (1), and the cleaning long plate (407) and the cleaning short plate (408) are fixedly connected by a telescopic rod (411).

4. The polyurethane resin pneumatic grinding device according to claim 3, characterized in that: One end of the telescopic rod (411) is fixedly connected to the outer wall of the cleaning short plate (408), and the other end of the telescopic rod (411) is fixedly connected to the outer wall of the cleaning long plate (407).

5. The polyurethane resin pneumatic grinding device according to claim 1, characterized in that: The bottom ends of the cleaning long plate (407) and the cleaning short plate (408) are in contact with the top of the slope (7), and the bottom end of the connecting plate (402) is rotatably connected to the outer wall of the cleaning long plate (407).

6. The polyurethane resin pneumatic grinding device according to claim 1, characterized in that: The cleaning long plate (407), the cleaning short plate (408), and their connecting plate (406) are all arranged in a triangular shape.

7. The polyurethane resin pneumatic grinding device according to claim 1, characterized in that: The grinding barrel (1) is fixedly connected to a pneumatic box (2) at the top. A hydraulic arm (5) is rotatably connected to the inner wall of the bottom end of the pneumatic box (2). A grinder (6) is fixedly connected to the bottom end of the hydraulic arm (5). The connecting mechanism (3) includes a rotating column (302). The rotating column (302) is connected to the outer wall of the top end of the hydraulic arm (5) via a belt (301).

8. The polyurethane resin pneumatic grinding device according to claim 7, characterized in that: The bottom end of the rotating column (302) is fixedly connected to the top end of the reciprocating lead screw (401), and the top end of the rotating column (302) is rotatably connected to the inner wall of the top end of the grinding barrel (1).

Images