Protective device for mixing operation of double-roller open mill

Abstract

The utility model discloses a protective device for mixing operation of a double-roller open mill, which comprises an operation box and a double-roller arranged on the operation box, support rods are fixedly connected to two ends of the operation box on the side edge of the double-roller, and a roller scraping and oiling component is rotatably connected between the end parts of the two support rods far away from the double-roller. By rotating the clamping plate and utilizing the arrangement of a rubber strip block, the purpose that a sample is conveniently scraped off on the premise of guaranteeing high protection performance is successfully achieved, the mixing efficiency is greatly improved, meanwhile, the double rollers are also conveniently wiped, and the practicability is high. Through arrangement and cooperation of the piston assembly, the oil storage cavity, the second oil outlet hole and the like, rapid oiling operation is successfully achieved, an oil agent can be stored and can be conveniently used next time, the oil outlet speed can be adjusted according to the actual oiling state, the practicability of the device is greatly improved, and the device is convenient to operate, efficient, practical and convenient to use and popularize.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber mixing equipment, in particular to a protective device used for mixing operation of a double-roll open mill. Background Art

[0002] The twin-roll mill is an open plastic material intermittent mixing equipment consisting of two parallel rollers with adjustable roller gap. It is mainly used for blending polymer particles, extruding or processing mixtures.

[0003] At present, after the mixing operation of the double-roll mill is completed, the sample needs to be removed with wood or bamboo products. Metal products cannot be used to scrape the surface of the double rollers to avoid damaging the surface. When the sample is made, the surface of the rollers is cleaned with cotton cloth and coated with corresponding maintenance oil to facilitate the normal mixing operation next time.

[0004] However, the above common processing methods are rather cumbersome, requiring not only manual labor to hold wood or bamboo products to scrape off samples, but also manual labor to hold cotton cloth to wipe and clean, and manual labor to oil the surface of the double rollers, thereby preventing damage to the double rollers and maintaining the double rollers to facilitate the next mixing operation, thereby improving the use efficiency and service life of the double-roll mill. For this reason, a protective device for the mixing operation of the double-roll mill is proposed. Utility Model Content

[0005] The utility model aims to provide a protective device for the mixing operation of a twin-roll mill, so as to solve the problem of low efficiency caused by the fact that the existing damage prevention and maintenance operations of the twin rollers are mostly performed manually as mentioned in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective device for the mixing operation of a twin-roll mill, comprising an operating box and twin rollers arranged thereon, wherein both ends of the operating box located on the sides of the twin rollers are fixedly connected to support rods, and a scraper roller oiling assembly is rotatably connected between the ends of the two support rods away from the twin rollers, and the scraper roller oiling assembly is used to scrape and oil the surface of the twin rollers;

[0007] The scraper roller oiling assembly includes a rotating shaft rotatably connected to a support rod, a cardboard is fixedly connected to the arc surface of the rotating shaft, an oil storage cavity is arranged inside the cardboard, a sliding groove is provided on the surface of the cardboard, a piston assembly is slidably connected inside the oil storage cavity, a rubber strip is fixedly connected to one end of the cardboard away from the rotating shaft, a plurality of first oil outlet holes are provided at equal distances on the inner side wall of the oil storage cavity close to the rubber strip, and a second oil outlet hole is provided at each of the first oil outlet holes of the rubber strip, and the rubber strip can be closely fitted with the surface of the double rollers as the rotating shaft rotates;

[0008] The piston assembly comprises a pull plate, an inner plate and a plunger, wherein the pull plate is fixedly connected to the inner plate, the inner plate is fixedly connected to the plunger, and the pull plate extends out of the sliding slot and is slidably connected to the side wall of the sliding slot.

[0009] Preferably, a fixing block is fixedly connected to the bottom end of the support rod, and the fixing block is fixedly connected to the operation box by bolts.

[0010] Preferably: a limit assembly is provided on the support rod located at one end of the side of the double roller, the limit assembly includes a spring cavity fixedly connected to the support rod, a return spring is provided in the spring cavity, the outer end of the return spring is fixedly connected to a telescopic rod, and a clamping groove is provided at one end of the rotating shaft close to the limit assembly.

[0011] Preferably, the telescopic rod is slidably connected inside the spring cavity, and the telescopic rod can extend into the clamping groove.

[0012] Preferably, the plunger is tightly fitted to the inner wall of the oil storage cavity.

[0013] Preferably, the distance between the pull plate and the plunger is smaller than the length of the side of the sliding notch parallel to the sliding direction of the plunger.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The present application utilizes the setting of the rubber strip by rotating the card plate, and successfully realizes the convenient scraping of the sample under the premise of ensuring high protection, which greatly improves the mixing efficiency. At the same time, it is also convenient to wipe the double rollers. The setting and joint cooperation of the piston assembly, the oil storage chamber and the second oil outlet hole are utilized to successfully realize the operation of rapid oiling, and the oil can be stored for convenient use next time. The oil outlet speed can be adjusted according to the actual oiling state, which greatly improves the practicality of the device, is easy to operate, efficient and practical, and is easy to promote and use.

[0016] 2. By setting the limit assembly, the limit of the card plate is achieved, which is beneficial to limit the card plate on the upper side of the double rollers, greatly improving the operation efficiency of the scraper roller oiling assembly. At the same time, since the rotating shaft can be automatically stuck, it is further beneficial to the operation of the scraper roller oiling assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structural view of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection between the inner plate and the plunger in the utility model;

[0020] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0021] Figure 5 It is a cross-sectional view of the scraper roller oiling assembly in the utility model;

[0022] Figure 6 for Figure 5 A magnified schematic diagram of point B in the middle.

[0023] In the figure: 1. operating box; 101. double rollers; 2. limiting assembly; 201. supporting rod; 202. fixing block; 203. spring cavity; 204. reset spring; 205. telescopic rod; 3. scraper roller oiling assembly; 301. rotating shaft; 302. clamping plate; 303. pulling plate; 304. sliding notch; 305. inner plate; 306. plunger; 307. clamping groove; 4. oil storage chamber; 401. first oil outlet; 5. rubber strip; 501. second oil outlet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-6 As shown, the utility model provides a technical solution of a protective device for a twin-roll mill mixing operation:

[0026] Embodiment 1:

[0027] A protective device for the mixing operation of a twin-roll mill comprises an operating box 1 and twin rollers 101 arranged thereon, wherein the operating box 1 is located on the sides of the twin rollers 101 and both ends thereof are fixedly connected to support rods 201, and a scraper roller oiling assembly 3 is rotatably connected between the ends of the two support rods 201 away from the twin rollers 101, and the scraper roller oiling assembly 3 is used for scraping and oiling the surface of the twin rollers 101.

[0028] The scraper roller oiling assembly 3 includes a rotating shaft 301 rotatably connected to the support rod 201, a clamping plate 302 is fixedly connected to the arc surface of the rotating shaft 301, an oil storage chamber 4 is arranged inside the clamping plate 302, a sliding groove 304 is provided on the surface of the clamping plate 302, a piston assembly is slidably connected inside the oil storage chamber 4, a rubber strip 5 is fixedly connected to the end of the clamping plate 302 away from the rotating shaft 301, a plurality of first oil outlet holes 401 are equidistantly provided on the inner side wall of the oil storage chamber 4 near the rubber strip 5, and a second oil outlet hole 501 is provided at the first oil outlet hole 401. The rubber strip 5 can fit tightly with the surface of the double roller 101 as the rotating shaft 301 rotates.

[0029] The piston assembly includes a pull plate 303 , an inner plate 305 and a plunger 306 . The pull plate 303 and the inner plate 305 are fixedly connected. The inner plate 305 and the plunger 306 are fixedly connected. The pull plate 303 extends out of the sliding slot 304 and is slidably connected to the side wall of the sliding slot 304 .

[0030] Among them, it should be supplemented that the bottom end of the support rod 201 is fixedly connected with a fixed block 202, and the fixed block 202 is fixedly connected to the operating box 1 by bolts, the plunger 306 is tightly fitted with the inner wall of the oil storage chamber 4, and the distance between the pull plate 303 and the plunger 306 is smaller than the side length of the sliding groove 304 parallel to the sliding direction of the plunger 306.

[0031] Working process: When the device is in use, after the mixing operation is completed using the operating box 1 and the double rollers 101, the user only needs to rotate the card plate 302. At this time, the rotating shaft 301 rotates on the support rod 201. Since the rubber strip block 5 can be closely fitted with the surface of the double roller 101 as the rotating shaft 301 rotates, the double roller 101 is kept rotating through the control of the operating box 1. When the rubber strip block 5 is closely fitted with the surface of the double roller 101, although the rubber strip block 5 is easy to deform due to its own material properties, the card plate 302 can provide rigid support, which makes the sample on the surface of the double roller 101 pass through the lower end of the card plate 302. Due to the setting of the rubber strip block 5, the card plate 302 will not damage the double roller 101, which greatly improves the mixing efficiency of the device while ensuring high protection.

[0032] When the sampling operation is completed, the surface of the double roller 101 needs to be wiped and cleaned. At this time, it is only necessary to wrap the wiping cloth strip in the prior art on the card plate 302 at one end of the rubber strip block 5, rotate the card plate 302, so that the wiping cloth strip is close to the double roller 101, and then control the double roller 101 to rotate by the operating box 1, so that the surface of the double roller 101 can be quickly wiped and cleaned.

[0033] When the above-mentioned wiping and cleaning operation is completed, it is necessary to apply oil to the surface of the double roller 101. At this time, the pull plate 303 is first pulled upward, and the inner plate 305 and the plunger 306 will slide in the oil storage chamber 4. Since the distance between the pull plate 303 and the plunger 306 is smaller than the length of the side parallel to the sliding groove 304 and the sliding direction of the plunger 306, the sliding groove 304 leaks out a gap, and the card plate 302 is rotated to make the rubber strip 5 close to the surface of the double roller 101. The rubber strip 5 is squeezed and deformed, thereby blocking the second oil outlet 501, and the oil to be used is poured into the oil storage chamber 4 through the gap. The card plate 302 is rotated to restore the rubber strip 5 to its original state. The oil outlet hole 501 is opened and quickly turned to prevent the oil from flowing out, and at the same time, the pull plate 303 is pulled downward so that the sliding groove 304 is closed, and then the rubber strip 5 is placed against the surface of the double roller 101. At this time, the second oil outlet hole 501 remains unobstructed, and the double roller 101 is rotated by controlling the operation box 1. In this process, the flow rate of the oil is controlled by controlling the speed of pulling the pull plate 303 downward, and the oil output can be adjusted according to the actual oiling situation, thereby improving practicality. The oil flows out through the second oil outlet hole 501, and is evenly pressed by the contact between the rubber strip 5 and the double roller 101, thereby successfully realizing a fast oiling operation, and the oil can be stored in the oil storage chamber 4 for convenient use next time.

[0034] Embodiment 2:

[0035] Reference Figure 3 and Figure 4 As shown, a limit assembly 2 is provided on a support rod 201 located at one end of the side of the double roller 101, and the limit assembly 2 includes a spring cavity 203 fixedly connected to the support rod 201, a return spring 204 is provided in the spring cavity 203, and the outer end of the return spring 204 is fixedly connected to a telescopic rod 205, and a clamping groove 307 is provided at one end of the rotating shaft 301 close to the limit assembly 2.

[0036] It should be additionally explained that the telescopic rod 205 is slidably connected inside the spring cavity 203 , and the telescopic rod 205 can extend into the engaging groove 307 .

[0037] Working process: During operation, when the scraper roller oiling assembly 3 is not in use, the telescopic rod 205 extends into the engaging groove 307 under the action of the return spring 204, so as to limit the clamping plate 302, and avoid the shaking of the scraper roller oiling assembly 3 caused by vibration during the operation of the device, thereby affecting the normal mixing operation. At the same time, the scraper roller oiling assembly 3 is limited above the double rollers 101, which is conducive to scraping, wiping and oiling the double rollers 101 through the scraper roller oiling assembly 3. In the process of rotating the rotating shaft 301, the telescopic rod 205 always presses against the arc side surface of the end of the rotating shaft 301. When in use, it is only necessary to press the telescopic rod 205 to disengage the telescopic rod 205 from the engaging groove 307. The operation is convenient, and the resetting of the rotating shaft 301 is convenient, which is further conducive to the operation of the scraper roller oiling assembly 3.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for a twin-roll mill mixing operation, comprising an operating box (1) and twin rollers (101) arranged thereon, characterized in that: The operating box (1) is fixedly connected to support rods (201) at both ends of the side of the double rollers (101); a scraper roller oiling assembly (3) is rotatably connected between the ends of the two support rods (201) away from the double rollers (101); the scraper roller oiling assembly (3) is used to scrape and oil the surface of the double rollers (101); The scraper roller oiling assembly (3) comprises a rotating shaft (301) rotatably connected to a support rod (201); a clamping plate (302) is fixedly connected to the arc surface of the rotating shaft (301); an oil storage chamber (4) is arranged inside the clamping plate (302); a sliding groove (304) is provided on the surface of the clamping plate (302); a piston assembly is slidably connected inside the oil storage chamber (4); a rubber strip (5) is fixedly connected to one end of the clamping plate (302) away from the rotating shaft (301); a plurality of first oil outlet holes (401) are equidistantly provided on the inner side wall of the oil storage chamber (4) close to the rubber strip (5); a second oil outlet hole (501) is provided at each of the first oil outlet holes (401); and the rubber strip (5) can be closely fitted with the surface of the double roller (101) as the rotating shaft (301) rotates; The piston assembly comprises a pull plate (303), an inner plate (305) and a plunger (306); the pull plate (303) and the inner plate (305) are fixedly connected; the inner plate (305) and the plunger (306) are fixedly connected; the pull plate (303) extends out of the sliding slot (304) and is slidably connected to the side wall of the sliding slot (304).

2. A protective device for a twin-roll mill mixing operation according to claim 1, characterized in that: The bottom end of the support rod (201) is fixedly connected to a fixing block (202), and the fixing block (202) is fixedly connected to the operating box (1) via bolts.

3. A protective device for a twin-roll mill mixing operation according to claim 1, characterized in that: A limit assembly (2) is arranged on the support rod (201) at one end of the side of the double roller (101), the limit assembly (2) comprising a spring cavity (203) fixedly connected to the support rod (201), a return spring (204) being arranged in the spring cavity (203), the outer end of the return spring (204) being fixedly connected to a telescopic rod (205), and a clamping groove (307) being provided at one end of the rotating shaft (301) close to the limit assembly (2).

4. A protective device for a twin-roll mill mixing operation according to claim 3, characterized in that: The telescopic rod (205) is slidably connected inside the spring cavity (203), and the telescopic rod (205) can extend into the clamping groove opening (307).

5. A protective device for a twin-roll mill mixing operation according to claim 1, characterized in that: The plunger (306) is tightly fitted to the inner wall of the oil storage chamber (4).

6. A protective device for a twin-roll mill mixing operation according to claim 1, characterized in that: The distance between the pulling plate (303) and the plunger (306) is smaller than the length of the side of the sliding notch (304) parallel to the sliding direction of the plunger (306).

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