Open mill for plastic product processing

Abstract

The utility model provides an open mill for processing plastic products, and relates to the technical field of open mills. The mixing device comprises a rack, a mixing roller and a mounting opening, a transmission rod penetrating into the mounting opening is fixedly connected to the output end of the side of a motor on the side wall of the mounting opening, an adjusting screw rod is rotationally connected into a sliding cavity, material guide rollers located above the mixing roller are arranged on the two sides of the sliding cavity, and a sliding rod located above the material guide rollers is fixedly connected to the inner wall of the rack. When the roller spacing of an open mill in the prior art is adjusted, the viscosity of plastic is large and the plastic is easy to cool and solidify in the open milling process, and if the plastic is extremely easy to adhere to a mixing roller after being cooled to cause influence, the mixed strip-shaped plastic raw material can be stretched between a material guide roller and the mixing roller, so that the plastic can be uniformly mixed. And the heaters are arranged in the material guide rollers and conduct heat on the material guide rollers made of metal materials, so that the strip-shaped plastic raw materials are better in elasticity and not prone to cooling after being stretched, and the refining efficiency of the plastic raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of open mixing mills, in particular to an open mixing mill for processing plastic products. Background Art

[0002] At present, the open mixing mill is the abbreviation of the open plastic refining machine. In plastic products factories, people are accustomed to calling it a two-roller mill. The open mixing mill is an early type of plastic mixing equipment used in plastic product manufacturers. The open mixing mill has a simple structure, is relatively easy to manufacture, easy to operate, and convenient to maintain and disassemble. Therefore, it is widely used in plastic product companies.

[0003] The Chinese utility model patent with publication number CN218488823U in the prior art relates to an open mill for rubber products, including an open mill body, the open mill body is provided with an open mill body, an electric heating tube is installed inside the open mill body, a mounting plate is slidably connected to the rear end of the open mill body, a motor is installed on the mounting plate, a screw is fixedly connected to the output end of the motor, a vertical plate is fixedly connected to the top of the open mill body, the screw and the vertical plate are threadedly connected, a scraper is rotatably connected to the front end of the screw, and the scraper is connected with a limiting member, the limiting member includes a plurality of limiting rods, the limiting rods are fixedly connected to the rear end of the scraper, a plurality of limiting holes matching the limiting rods are opened on the vertical plate, the bottom end of the scraper is in contact with the open mill body, a collecting plate is fixedly connected to the front end of the open mill body, baffles are fixedly connected to the left and right sides of the top of the collecting plate, and a material blocking assembly is arranged between the two baffles.

[0004] However, when adjusting the roller distance of this type of mixing mill, the roller distances at both ends are adjusted differently, which can easily cause the mixing roller to be unbalanced. The plastic has a high viscosity during the mixing process and is easy to cool and solidify. If the plastic is cooled, it is very easy to stick to the mixing roller and cause an impact. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an open mixing mill for processing plastic products, so as to solve the problem that when adjusting the roller distance of the open mixing mill in the prior art, the roller distance at both ends is adjusted to different sizes, which easily causes the mixing roller to be unbalanced. The plastic has a large viscosity during the mixing process and is easy to cool and solidify. If the plastic is cooled, it is very easy to stick to the mixing roller and cause an impact.

[0006] The utility model discloses an open mixing mill for processing plastic products, and the purpose and effect are achieved by the following specific technical means: an open mixing mill for processing plastic products, comprising a frame, a mixing roller and a mounting opening, the mixing roller is arranged above the middle part of the frame, the mounting opening is opened on the side walls on both sides of the frame, a slide is slidably connected in the mounting opening, a motor is arranged on the mounting opening and the side walls of the slide, a side output end of the motor on the side wall of the slide is fixedly connected to the side end of the mixing roller, a side output end of the motor on the side wall of the slide is fixedly connected to a transmission rod penetrating into the mounting opening, the transmission rod and the slide are threadedly connected, a collecting box located below the mixing roller is arranged at the bottom of the frame, sliding cavities are opened on both sides of the upper part of the frame, an adjusting screw is rotatably connected in the sliding cavity, guide rollers located above the mixing roller are arranged on both sides of the sliding cavity, and a slide rod located above the guide roller is fixedly connected to the inner wall of the frame.

[0007] Preferably, the slide is arranged in a rectangular shape.

[0008] Preferably, a threaded sleeve located in the sliding cavity is threadedly connected on the side wall of the adjusting screw, and a connecting rod is rotatably connected to the side end of the guide roller.

[0009] Preferably, the connecting rod passes through the sliding cavity and is fixedly connected to the threaded sleeve.

[0010] Preferably, a heater is provided inside the guide roller, and the guide roller is made of metal.

[0011] Preferably, a material guide plate is slidably connected to the side wall of the material guide roller, a sliding sleeve is slidably connected to the side wall of the slide rod, and a connecting arm is provided between the sliding sleeve and the material guide plate.

[0012] Preferably, two ends of the connecting arm are rotatably connected to the sliding sleeve and the side wall of the guide plate respectively, and the connecting arm is arranged as a telescopic arm.

[0013] Preferably, a positioning hole is formed on the side wall of the sliding rod, and a plurality of positioning holes are arranged in sequence, and a pin penetrating into the positioning hole is clamped on the side wall of the sliding sleeve.

[0014] Beneficial effects:

[0015] 1. When the sliding sleeve slides on the side wall of the sliding rod, the sliding sleeve can drive the guide plate to slide on the side wall of the guide roller, so that the distance between the left and right guide plates can be adjusted, so that when the mixing mill adjusts the roller distance, it is not easy to cause the mixing roller to be unbalanced, thereby improving the processing effect and service life of the mixing roller.

[0016] 2. When the adjusting screw is rotated, the adjusting screw will push the threaded sleeve to rise and fall in the sliding cavity, so that the threaded sleeve can drive the side guide roller to rise and fall, so that the height distance between the guide roller and the mixing roller can be adjusted, and the mixed strip plastic raw material can be stretched between the guide roller and the mixing roller, thereby stretching the tension of the strip plastic raw material, and a heater is arranged inside the guide roller. The heater conducts heat to the guide roller set by the metal material, so that the strip plastic raw material has better elasticity after stretching and is not easy to cool, thereby improving the refining efficiency of the plastic raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a front cross-sectional structural schematic diagram of the utility model.

[0019] Figure 3 It is a side sectional structural schematic diagram of the utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the material guide plate in the utility model.

[0021] Figure 1-4 , the correspondence between the component names and the figure numbers is: frame-1, slide chamber-2, adjusting screw-201, threaded sleeve-3, guide roller-301, mixing roller-4, collecting box-401, mounting port-5, slide-501, motor-502, slide rod-6, slide sleeve-601, guide plate-602, positioning hole-603. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] As attached Figure 1 To Attachment Figure 4 As shown: an open mixing mill for processing plastic products, including a frame 1, a mixing roller 4 and a mounting port 5, the mixing roller 4 is rotatably connected to the upper middle part of the frame 1, and the mixing roller 4 is arranged in two corresponding left and right parts. By pouring the plastic raw material between the mixing rollers 4, the plastic raw material is melted and rolled into a strip shape under the action of the mixing rollers 4, and the mounting port 5 is opened on both sides of the mixing roller 4.

[0024] Among them, a slide 501 is slidably connected in the installation port 5, and a motor 502 is fixedly connected to the side walls of the installation port 5 and the slide 501. The side output end of the motor 502 on the side wall of the slide 501 is fixedly connected to the side end of the mixing roller 4, so that the motor 502 can drive the mixing roller 4 to rotate in the frame 1, and the side output end of the motor 502 on the side wall of the installation port 5 is fixedly connected with a transmission rod that penetrates into the installation port 5. The transmission rod and the slide 501 are threadedly connected, so that when the side output end of the motor 502 drives the transmission rod to rotate, the transmission rod can push the slide 501 to slide in the installation port 5. The slide 501 is arranged in a rectangular shape, so that the slide 501 is pushed to move in the installation port 5 more conveniently, so that the spacing between the mixing rollers 4 can be adjusted, thereby improving the mixing effect of the plastic raw materials.

[0025] It should be understood that the above-mentioned fixed connection means that there can be no relative movement between the two. There are many ways of fixed connection. Bolts can be used here to fix it, making it more convenient to disassemble and maintain the motor 502 later.

[0026] A collecting box 401 located below the mixing roller 4 is installed at the bottom of the frame 1, and plastic scraps and the like are collected through the collecting box 401. A sliding cavity 2 is opened on both sides above the frame 1, and an adjusting screw 201 is rotatably connected in the sliding cavity 2, so that the adjusting screw 201 can rotate in the sliding cavity 2.

[0027] Among them, guide rollers 301 located above the mixing rollers 4 are installed on both sides of the sliding cavity 2, so that after the plastic raw materials between the mixing rollers 4 are rolled into a strip shape, the strip-shaped plastic raw materials can be stretched upward to the top of the guide rollers 301, and then the guide rollers 301 can stretch the strip-shaped plastic raw materials, thereby improving the mixing effect and tensioning performance of the strip-shaped plastic raw materials and reducing the solidification and adhesion of the plastic raw materials.

[0028] A slide bar 6 located above the material guide roller 301 is fixedly connected to the inner wall of the frame 1, and a material guide plate 602 is slidably connected to the side wall of the material guide roller 301, so that the baffle 602 can block the plastic raw material to adjust the spacing of the strip plastic raw material after molding, prevent the mixing roller 4 from being worn due to unbalanced loading, and increase the service life of the mixing roller 4. Example

[0029] As attached Figure 1 To Attachment Figure 4As shown: the side wall of the adjusting screw 201 is threadedly connected with a threaded sleeve 3 located in the sliding cavity 2, and the side end of the guide roller 301 is rotatably connected with a connecting rod, and the side end of the connecting rod penetrates into the sliding cavity 2 and is fixedly connected with the threaded sleeve 3. When the adjusting screw 201 is rotated, the adjusting screw 201 will push the threaded sleeve 3 to rise and fall in the sliding cavity 2, so that the threaded sleeve 3 can drive the side guide roller 301 to rise and fall, so that the height spacing between the guide roller 301 and the mixing roller 4 can be adjusted, and the mixed strip plastic raw material can be stretched between the guide roller 301 and the mixing roller 4, and then the tension of the strip plastic raw material is stretched, so that the strip plastic raw material has better elasticity after stretching and is not easy to cool, thereby improving the refining efficiency of the plastic raw material.

[0030] Among them, a heater is arranged inside the guide roller 301, and the heater can be electrically heated. The guide roller 301 is made of metal material, so that after the heater heats the guide roller 301, the thermal conductivity of the metal material of the guide roller 301 is better, so that after the stretched strip plastic raw material is heated, the plastic raw material is not prone to cooling and other problems, thereby improving the processing efficiency of the plastic raw material.

[0031] As attached Figure 1 To Attachment Figure 4 As shown: a sliding sleeve 601 is slidably connected to the side wall of the slide rod 6, and a connecting arm is installed between the sliding sleeve 601 and the guide plate 602, and both ends of the connecting arm are rotatably connected to the sliding sleeve 601 and the side wall of the guide plate 602, and the connecting arm is a telescopic arm, so that the connecting arm will be stretched when the guide roller 301 is raised or lowered, to prevent the connecting arm from getting stuck and causing the guide roller 301 to be unable to rise or fall, and then when the sliding sleeve 601 slides on the side wall of the slide rod 6, the sliding sleeve 601 can drive the guide plate 602 to slide on the side wall of the guide roller 301, and then the distance between the left and right guide plates 602 can be adjusted, so that when the open mill adjusts the roller spacing, it is not easy to cause unbalanced loading of the mixing roller 4, thereby improving the processing effect and service life of the mixing roller 4.

[0032] As attached Figure 1 To Attachment Figure 4 As shown: a positioning hole 603 is opened on the side wall of the slide bar 6, and a plurality of positioning holes 603 are arranged in sequence. A pin is clamped on the side wall of the sliding sleeve 601 and penetrates into the positioning hole 603. After the sliding sleeve 601 slides to a position, the pin is inserted through the side wall of the sliding sleeve 601 and clamped into the corresponding positioning hole 603 below, so that the guide plate 602 is limited on the side wall of the slide bar 6, so that the spacing between the guide plates 602 is adjusted to have a better fixing effect, thereby improving the processing efficiency of the mixing roller 4.

[0033] Working principle: By pouring the plastic raw material between the mixing rollers 4, the mixing rollers 4 are driven to rotate in the frame 1 by the side motor 502, so that the plastic raw material is melted and rolled into a strip under the action of the mixing rollers 4. When the motor 502 on the side wall of the installation port 5 drives the transmission rod to rotate, the transmission rod can push the slide 501 to slide in the installation port 5, so that the spacing between the mixing rollers 4 can be adjusted. When the adjusting screw 201 is rotated, the adjusting screw 201 will push the threaded sleeve 3 to rise and fall in the sliding cavity 2, so that the threaded sleeve 3 can drive the side guide roller 301 to rise and fall. When the guide roller 301 rises and falls, the connecting arm will be stretched, so that the guide roller 301 can be adjusted with the mixing roller 4. The height spacing between them, the mixed strip plastic raw material can be stretched between the guide roller 301 and the mixing roller 4, and when the guide roller 301 rotates, the internal heater will conduct heat to the plastic raw material, and then the tension of the strip plastic raw material will be stretched, and the strip plastic raw material will have better elasticity after stretching and will not be easy to cool down. By pushing the sliding sleeve 601 on the side wall of the slide bar 6, the sliding sleeve 601 can drive the guide plate 602 to slide on the side wall of the guide roller 301, and then the distance between the left and right guide plates 602 can be adjusted. By passing the pin through the side wall of the sliding sleeve 601 and clamping it into the corresponding positioning hole 603 on the side wall of the slide bar 6 to limit the position, it is not easy to cause the mixing roller 4 to be overloaded when the open mill adjusts the roller spacing.

Claims

1. A mixing mill for processing plastic products, comprising a frame (1), a mixing roller (4) and a mounting opening (5), wherein the mixing roller (4) is arranged above the middle of the frame (1), and the mounting opening (5) is opened on both side walls of the frame (1), characterized in that: A slide (501) is slidably connected in the installation opening (5), and a motor (502) is arranged on the side walls of the installation opening (5) and the slide (501). The side output end of the motor (502) on the side wall of the slide (501) is fixedly connected to the side end of the mixing roller (4). The side output end of the motor (502) on the side wall of the installation opening (5) is fixedly connected to a transmission rod that penetrates into the installation opening (5), and the transmission rod and the slide (501) are threadedly connected. A collecting box (401) located below the mixing roller (4) is arranged at the bottom of the frame (1), and sliding cavities (2) are opened on both sides of the upper part of the frame (1). An adjusting screw (201) is rotatably connected in the sliding cavity (2). Guide rollers (301) located above the mixing roller (4) are arranged on both sides of the sliding cavity (2), and a slide rod (6) located above the guide roller (301) is fixedly connected to the inner wall of the frame (1).

2. The mixing mill for processing plastic products according to claim 1, characterized in that: The sliding frame (501) is arranged in a rectangular shape.

3. The open mixing mill for processing plastic products according to claim 1, characterized in that: A threaded sleeve (3) located in the sliding cavity (2) is threadedly connected on the side wall of the adjusting screw (201), and a connecting rod is rotatably connected to the side end of the material guide roller (301).

4. The mixing mill for processing plastic products according to claim 3, characterized in that: The connecting rod penetrates into the sliding cavity (2) and is fixedly connected to the threaded sleeve (3).

5. The mixing mill for processing plastic products according to claim 1, characterized in that: A heater is arranged inside the material guide roller (301), and the material guide roller (301) is made of metal material.

6. The open mixing mill for processing plastic products according to claim 1, characterized in that: A material guide plate (602) is slidably connected to the side wall of the material guide roller (301), a sliding sleeve (601) is slidably connected to the side wall of the slide rod (6), and a connecting arm is provided between the sliding sleeve (601) and the material guide plate (602).

7. The mixing mill for processing plastic products according to claim 6, characterized in that: The two ends of the connecting arm are rotatably connected to the sliding sleeve (601) and the side wall of the material guide plate (602), respectively, and the connecting arm is a telescopic arm.

8. The open mixing mill for processing plastic products according to claim 7, characterized in that: A positioning hole (603) is provided on the side wall of the sliding rod (6), and a plurality of the positioning holes (603) are arranged in sequence. A latch pin penetrating into the positioning hole (603) is clamped on the side wall of the sliding sleeve (601).

Images