Automatic scraping rubber open mill

Abstract

The utility model provides a rubber open mill capable of automatically scraping rubber. The rubber open mill comprises an open mill body and a rubber extruding roller arranged in the open mill body, the scraper is arranged at the bottom of the rubber extruding roller, and a collecting groove formed in the open mill body is formed in the bottom of the scraper; a lifting mechanism used for driving the scraper to be attached to or separated from the bottom face of the rubber extruding roller is installed on the inner side wall of the collecting tank, and a push block is arranged at the output end of the lifting mechanism. The cleaning scraper is arranged below the side, facing the interior of the open mill body, of the scraper, the cleaning scraper is connected with a vibration mechanism, the input end of the vibration mechanism is provided with a pressed block located above the push block, and the pressed block is pushed by the push block so as to drive the vibration mechanism. And through the arrangement of the scraper capable of vertically moving, the cleaning scraper and the vibration mechanism, the scraper can be cleaned after the rubber extruding roller is cleaned, and the situation that subsequent scraping and rubber extruding roller cleaning are affected due to the fact that materials are attached to the scraper is avoided.

Description

Technical Field

[0001] The utility model relates to the field of rubber mixing mills, in particular to an automatic rubber scraping mixing mill. Background Art

[0002] Rubber products, such as rubber bearings, rubber pads, etc., are in the process of production; their raw materials need to be processed through a rubber mixing mill. The rubber is extruded and sheared through the relative rotation of two rollers to achieve the purpose of uniform mixing and plasticization. It is one of the key equipment in the rubber processing process.

[0003] At present, a traditional rubber mixing mill is provided with a scraper at the rubber extrusion roller to clean the rubber extrusion roller after rubber processing. After the scraper cleans the surface of the rubber extrusion roller, the material may adhere to the side wall of the scraper. If it is not cleaned in time, it will accumulate over a long period of time and may affect the subsequent cleaning effect of the rubber extrusion roller. In the prior art, the scraper position lacks a self-cleaning design and needs to be cleaned manually. During cleaning, the hand may come into contact with the blade, which may cause the risk of hand cuts. Utility Model Content

[0004] The utility model provides an automatic scraping rubber mill to solve the technical problem that the scraper lacks a self-cleaning design.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides an automatic rubber scraping open mill, comprising an open mill body and a rubber squeezing roller arranged in the open mill body; further comprising: a scraper, the scraper is arranged at the bottom of the rubber squeezing roller, and the bottom of the scraper is provided with a collecting trough opened in the open mill body; a lifting mechanism for driving the scraper to fit or separate with the bottom surface of the rubber squeezing roller is installed on the inner side wall of the collecting trough, and a push block is arranged at the output end of the lifting mechanism; a cleaning scraper, the cleaning scraper is arranged below the side of the scraper facing the inside of the open mill body, the cleaning scraper is connected with a vibration mechanism, and the input end of the vibration mechanism is provided with a pressure block located above the push block, and the pressure block is pushed by the push block to drive the vibration mechanism.

[0007] In this technical solution, by enabling the scraper to move vertically, and providing a cleaning scraper and a vibration mechanism, the scraper can be cleaned after cleaning the rubber extrusion roller to avoid material adhering to the scraper and affecting subsequent scraping and cleaning of the rubber extrusion roller.

[0008] Preferably, the lifting mechanism includes a screw, a servo motor, a nut, an upper end plate and a guide portion; the upper end plate is fixedly connected to the inner wall of the collecting tank, the servo motor is fixedly installed to the bottom of the mixing mill body, one end of the screw is rotatably connected to the upper end plate, and the other end of the screw is fixedly connected to the output shaft end of the servo motor, a nut is threadedly connected to the screw, and the nut is fixedly connected to the push block.

[0009] In this technical solution, the lifting mechanism is used to drive the scraper to lift and lower.

[0010] Preferably, the guide portion includes a guide block and a guide groove, the guide groove is provided on the inner side wall of the collecting groove, the guide block is slidably connected to the guide groove, and the guide block is fixedly connected to the nut.

[0011] In this technical solution, the guide portion provides guidance for the vertical movement of the nut in the lifting mechanism.

[0012] Preferably, a connecting rod is fixedly connected to the bottom of the scraper, and the bottom end of the connecting rod is fixedly connected to the push block.

[0013] In the technical solution, the scraper is raised by a connecting rod, so that the scraper is moved to the cleaning scraper or re-fitted with the bottom of the rubber squeezing roller at a certain distance.

[0014] Preferably, the vibration mechanism includes a rack, a gear, a cam and a rotating shaft. The bottom of the rack is connected to the bottom surface of the collecting tank through a vertical elastic member. The rotating shaft is rotatably installed in the collecting tank. The gear and cam are fixedly sleeved on the rotating shaft. The gear is meshingly connected to the rack, and the top of the rack is fixedly connected to the bottom surface of the pressure block.

[0015] In the present technical solution, the vibration mechanism is used to provide vibration for the cleaning scraper so as to shake off the material attached thereto.

[0016] Preferably, a contact plate is fixedly connected to one side of the cleaning blade, and the contact plate abuts against the top of the cam.

[0017] In the technical solution, the contact plate is used to contact with the cam and is squeezed when the cam rotates.

[0018] Preferably, the vertical elastic member includes a coil spring and a guide rod; a vertical groove with a bottom opening is vertically opened in the rack, the vertical groove is connected with the guide rod with a clearance fit, and the bottom end of the guide rod is fixed to the bottom surface of the collecting groove, the coil spring is arranged in the vertical groove, and the guide rod and the rack are elastically connected by the coil spring.

[0019] In the present technical solution, the vertical elastic member realizes the elastic connection of the rack in the vertical direction, and at the same time, provides a limit for its movement to ensure that it can only move in the vertical direction.

[0020] Preferably, a base is fixedly connected to the bottom of the cleaning scraper; the bottom of the base is connected to the bottom surface of the collecting tank through a gas spring; and the number of the gas springs is several.

[0021] In the present technical solution, the gas spring realizes the elastic connection of the bottom of the cleaning scraper, and each cleaning scraper is connected to a number of gas springs, which provide restrictions on the vibration of the cleaning scraper, so that it can only vibrate in the vertical direction.

[0022] Preferably, one side surface of the scraper is flush with the top side wall of the cleaning scraper, and the cleaning scraper forms an angle of 70-80° with the horizontal plane.

[0023] In this technical solution, the scraper is flush with the top side wall of the cleaning scraper. When the scraper moves downward, the top side wall of the cleaning scraper can be used to scrape off the material attached to the scraper; and the cleaning scraper is tilted to facilitate the falling of the material thereon.

[0024] Preferably, an inlet slot is provided on one side of the collecting slot, and a side door is detachably installed on the inlet slot.

[0025] In the present technical solution, the side door is used to open and close the inlet slot. When the collected materials in the collecting slot need to be taken out, the side door is opened to take out the materials through the inlet slot.

[0026] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0027] The positive and progressive effects of the utility model are:

[0028] The above-mentioned automatic scraping rubber mill is designed with a lifting mechanism and a cleaning scraper. After the scraper cleans the rubber squeezing roller, the lifting mechanism drives the scraper to move downward, and the cleaning scraper can scrape off the material attached to the side wall of the scraper to achieve self-cleaning after use; further, the material enters the cleaning scraper, and through the vibration mechanism and the design of the elastic connection at the bottom of the cleaning scraper, the material entering the cleaning scraper is vibrated and discharged downward; further, the lifting mechanism drives the push block to move vertically, providing impetus for the pressure block to drive the vibration mechanism, so that the drive of the vibration mechanism does not require an additional power source. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0030] Figure 2 It is a structural schematic diagram of the overall cross section of the utility model.

[0031] Figure 3 For this utility model Figure 2Schematic diagram of the structure with the A part in the middle enlarged.

[0032] Figure 4 For this utility model Figure 2 Schematic diagram of the structure with the B part enlarged.

[0033] Description of Reference Numerals

[0034] 1. Open mixing mill body; 101. Rubber extrusion roller; 102. Collecting tank; 103. Side door;

[0035] 2. Scraper;

[0036] 3. Cleaning scraper; 301. Contact plate;

[0037] 4. Connecting rod;

[0038] 5. Lifting mechanism; 501. Screw rod; 502. Servo motor; 503. Guide groove; 504. Nut; 505. Guide block; 506. Upper end plate;

[0039] 6. Base;

[0040] 7. Gas spring;

[0041] 8. Vibration mechanism; 801. rack; 802. spiral spring; 803. vertical slot; 804. pressure block; 805. guide rod; 806. cam; 807. gear; 808. rotating shaft;

[0042] 9. Push the block. DETAILED DESCRIPTION

[0043] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0044] like Figure 1-4 As shown, an automatic rubber scraping mill comprises a mill body 1 and a rubber squeezing roller 101 arranged in the mill body 1; it also comprises: a scraper 2, the scraper 2 is arranged at the bottom of the rubber squeezing roller 101, and the bottom of the scraper 2 is provided with a collecting tank 102 opened in the mill body 1; a lifting mechanism 5 for driving the scraper 2 to fit or separate from the bottom surface of the rubber squeezing roller 101 is installed on the inner wall of the collecting tank 102, and a push block 9 is arranged at the output end of the lifting mechanism 5; a cleaning scraper 3, the cleaning scraper 3 is arranged below the side of the scraper 2 facing the inside of the mill body 1, the cleaning scraper 3 is connected to a vibration mechanism 8, and the input end of the vibration mechanism 8 is provided with a pressure block 804 located above the push block 9, and the pressure block 804 is pushed by the push block 9 to drive the vibration mechanism 8.

[0045] The mixing mill body 1 processes the raw materials through two rubber squeezing rollers 101. During the processing, the scraper 2 does not contact the bottom of the squeezing rollers. After the processing, when cleaning is required, the scraper 2 is driven to fit the squeezing rollers for cleaning.

[0046] like Figure 2-3 As shown, the lifting mechanism 5 includes a screw 501, a servo motor 502, a nut 504, an upper end plate 506 and a guide portion; the upper end plate 506 is fixedly connected to the inner wall of the collecting tank 102, the servo motor 502 is fixedly installed to the bottom of the mixing mill body 1, one end of the screw 501 is rotatably connected to the upper end plate 506, and the other end of the screw 501 is fixedly connected to the output shaft end of the servo motor 502, the screw 501 is threadedly connected with a nut 504, and the nut 504 is fixedly connected to the push block 9; the guide portion includes a guide block 505 and a guide groove 503, the guide groove 503 is opened on the inner wall of the collecting tank 102, the guide block 505 is slidably connected to the guide groove 503, and the guide block 505 is fixedly connected to the nut 504.

[0047] The lifting and lowering of the scraper 2 is performed by a lifting mechanism 5, which operates as follows: the screw 501 is driven to rotate by a servo motor 502, and the vertical movement of the nut 504 is achieved through the threaded rotation between the screw 501 and the nut 504, and the vertical guidance provided by the guide block 505 and the guide groove 503. The push block 9 is fixed to the nut 504, and when the nut 504 moves, the push block 9 moves therewith.

[0048] like Figure 2 As shown, the bottom of the scraper 2 is fixedly connected with a connecting rod 4, and the bottom end of the connecting rod 4 is fixedly connected with a push block 9. The connecting rod 4 is used to raise the scraper 2. When the scraper 2 and the bottom of the rubber squeezing roller 101 are in contact with each other and approach the cleaning scraper 3 or move in the opposite direction, there is a certain distance between them. The distance is used for the push block 9 to drive the pressure block 804 to drive the vibration mechanism 8.

[0049] like Figure 2-4As shown, the vibration mechanism 8 includes a rack 801, a gear 807, a cam 806 and a rotating shaft 808. The bottom of the rack 801 is connected to the bottom surface of the collecting tank 102 through a vertical elastic member. The rotating shaft 808 is rotatably installed in the collecting tank 102. The gear 807 and the cam 806 are fixedly sleeved on the rotating shaft 808. The gear 807 is meshed and connected with the rack 801, and the top of the rack 801 is fixedly connected to the bottom surface of the pressure block 804; a contact plate 301 is fixedly connected to one side of the cleaning scraper 3, and the contact plate 301 is in contact with the top of the cam 806; the vertical The elastic member includes a coil spring 802 and a guide rod 805; a vertical groove 803 with a bottom opening is vertically provided in the rack 801, the vertical groove 803 is connected with the guide rod 805 with a clearance fit, and the bottom end of the guide rod 805 is fixedly connected to the bottom surface of the collecting tank 102, the coil spring 802 is arranged in the vertical groove 803, and the guide rod 805 and the rack 801 are elastically connected through the coil spring 802; and the number of gas springs 7 is several; the bottom of the cleaning scraper 3 is fixedly connected to a base 6; the bottom of the base 6 is connected to the bottom surface of the collecting tank 102 through the gas spring 7.

[0050] Among them Figure 2 In the state shown, the scraper 2 is in contact with the bottom of the rubber squeezing roller 101, and the rubber squeezing roller 101 rotates, and the scraper 2 can be used for cleaning; in the above state, the scraper 2 and the push block 9 are both in the highest position, the pressure block 804 is pushed by the push block 9, and the pressure block 804 and the rack 801 are also moved to the highest position, and the coil spring 802 is in a stretched state; when the push block 9 is driven to move downward, the scraper 2 moves downward together with the connecting rod 4, and the elastic force of the coil spring 802 drives the rack 801 and the pressure block 804 to move downward together until the coil spring 802 recovers to a state where it is not stretched. When the scraper 2 is close to the cleaning scraper 3, but the two are not in contact. During the above process, when the rack 801 moves downward, the driving gear 807, the rotating shaft 808 and the cam 806 rotate together. When the cam 806 rotates, it squeezes the contact plate 301, and cooperates with the elastic force of the gas spring 7 to drive the cleaning scraper 3 to shake up and down; after the coil spring 802 recovers to a state without being stretched, the push block 9 continues to move downward, the rack 801 can no longer be driven, the cleaning scraper 3 does not shake up and down, and the push block 9 drives the scraper 2 to move downward relative to the cleaning scraper 3, and scrapes off the material attached to the scraper 2 through the cleaning scraper 3.

[0051] When the rubber extrusion roller 101 needs to be cleaned again, the push block 9 moves upward to drive the scraper 2 upward. After the push block 9 contacts the bottom of the pressure block 804, the push block 9 continues to move upward to push the pressure block 804 upward, so that the pressure block 804 and the rack 801 move upward together, and at the same time, the spiral spring 802 is stretched. When the rack 801 moves upward, the drive gear 807, the rotating shaft 808 and the cam 806 rotate together. When the cam 806 rotates, it squeezes the contact plate 301 and cooperates with the elastic force of the gas spring 7 to drive the cleaning scraper 3 to shake up and down.

[0052] The cleaning scraper 3 is driven to shake up and down to shake off the materials thereon.

[0053] like Figure 2 As shown, one side of the scraper 2 is flush with the top side wall of the cleaning scraper 3, and the cleaning scraper 3 forms an angle of 70-80° with the horizontal plane.

[0054] By designing that one side of the scraper 2 is flush with the top side wall of the cleaning scraper 3, the scraper 2 is used to scrape off the material attached to it through the cleaning scraper 3 when it moves downward; at the same time, the cleaning scraper 3 adopts an inclined design to facilitate the falling of the material under vibration.

[0055] An inlet slot is disposed on one side of the collecting slot 102 , and a side door 103 is detachably mounted on the inlet slot.

[0056] The collecting tank 102 is used to collect materials. When the materials need to be taken out, the materials in the collecting tank 102 can be taken out by opening the side and passing through the entrance slot. The detachable installation of the side door 103 can be installed by bolts in the prior art or by hinged door locks.

[0057] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. An automatic rubber scraping mill, comprising a mill body (1) and a rubber squeezing roller (101) arranged in the mill body (1); characterized in that: Also includes: A scraper (2), the scraper (2) being arranged at the bottom of the rubber squeezing roller (101), and the bottom of the scraper (2) being provided with a collecting groove (102) opened in the mixing mill body (1); a lifting mechanism (5) for driving the scraper (2) to fit or separate from the bottom surface of the rubber squeezing roller (101) is installed on the inner side wall of the collecting groove (102), and a push block (9) is arranged at the output end of the lifting mechanism (5); A cleaning scraper (3) is arranged below the side of the scraper (2) facing the inside of the mixing mill body (1), the cleaning scraper (3) is connected to a vibration mechanism (8), and the input end of the vibration mechanism (8) is provided with a pressure block (804) located above the push block (9), and the pressure block (804) is pushed by the push block (9) to drive the vibration mechanism (8).

2. An automatic scraping rubber mill as claimed in claim 1, characterized in that: The lifting mechanism (5) comprises a screw rod (501), a servo motor (502), a nut (504), an upper end plate (506) and a guide portion; the upper end plate (506) is fixedly connected to the inner wall of the collecting tank (102); the servo motor (502) is fixedly installed to the bottom of the mixing mill body (1); one end of the screw rod (501) is rotatably connected to the upper end plate (506), and the other end of the screw rod (501) is fixedly connected to the output shaft end of the servo motor (502); a nut (504) is threadedly connected to the screw rod (501), and the nut (504) is fixedly connected to the push block (9).

3. An automatic scraping rubber mill as claimed in claim 2, characterized in that: The guide portion comprises a guide block (505) and a guide groove (503); the guide groove (503) is provided on the inner side wall of the collecting groove (102); the guide block (505) is slidably connected to the guide groove (503); and the guide block (505) is fixedly connected to the nut (504).

4. The automatic scraping rubber mill according to claim 1, characterized in that: A connecting rod (4) is fixedly connected to the bottom of the scraper (2), and the bottom end of the connecting rod (4) is fixedly connected to the push block (9).

5. The automatic scraping rubber mill according to claim 1, characterized in that: The vibration mechanism (8) comprises a rack (801), a gear (807), a cam (806) and a rotating shaft (808); the bottom of the rack (801) is connected to the bottom surface of the collecting tank (102) via a vertical elastic member; the rotating shaft (808) is rotatably mounted in the collecting tank (102); the gear (807) and the cam (806) are both fixedly sleeved on the rotating shaft (808); the gear (807) is meshedly connected to the rack (801); and the top of the rack (801) is fixedly connected to the bottom surface of the pressure block (804).

6. An automatic scraping rubber mill as claimed in claim 5, characterized in that: A contact plate (301) is fixedly connected to one side of the cleaning scraper (3), and the contact plate (301) abuts against the top of the cam (806).

7. The automatic scraping rubber mill according to claim 5, characterized in that: The vertical elastic member comprises a coil spring (802) and a guide rod (805); a vertical groove (803) with a bottom opening is vertically provided in the rack (801); the vertical groove (803) and the guide rod (805) are connected with each other in a clearance fit; the bottom end of the guide rod (805) is fixedly connected to the bottom surface of the collecting groove (102); the coil spring (802) is arranged in the vertical groove (803); and the guide rod (805) and the rack (801) are elastically connected via the coil spring (802).

8. The automatic scraping rubber mill according to claim 1, characterized in that: The bottom of the cleaning scraper (3) is fixedly connected to a base (6); the bottom of the base (6) is connected to the bottom surface of the collecting tank (102) via a gas spring (7); and the number of the gas springs (7) is several.

9. The automatic scraping rubber mill according to claim 1, characterized in that: One side surface of the scraper (2) is flush with the top side wall of the cleaning scraper (3), and an angle of 70-80° is formed between the cleaning scraper (3) and the horizontal plane.

10. The automatic scraping rubber mill according to claim 1, characterized in that: An inlet slot is provided on one side of the collecting slot (102), and a side door (103) is detachably mounted on the inlet slot.

Images