Open mill with buffer hopper

Abstract

The utility model provides an open mill with a buffer hopper, and solves the problems that an existing open mill needs to be turned over manually during use, and an operator needs to take down materials from the rotating open mill, then turns over the materials and then puts the materials into the open mill again due to the fact that the open mill is in a rotating state during use, so that the operation is inconvenient. And the method can be widely applied to the field of rubber manufacturing. The device specifically comprises two base plates, two parallel mixing rollers are arranged between the base plates, and the two mixing rollers rotate oppositely and are used for extruding rubber materials; a turnover mechanism is arranged above the mixing roller, the turnover mechanism comprises two turnover rollers, and the two turnover rollers rotate oppositely, are different in height and are used for reducing the deviation angle of the sizing material pulled out of the mixing roller; a lead screw is arranged on the front side of the overturning roller, a first sliding block is arranged on the lead screw in a threaded fit mode, two limiting columns are fixedly connected to the first sliding block, and a blocking column is arranged at the end of each limiting column.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber manufacturing, in particular to an open mixing mill with a buffer hopper. Background Art

[0002] The existing mixing mills need to be manually turned over when in use. Since the mixing mills are in a rotating state when in use, the operator needs to take the materials off the rotating mixing mill, turn it over and put it back in again, which poses a great safety hazard. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the above-mentioned technology and provides an open mill with a buffer hopper.

[0004] To this end, the utility model provides an open mixing mill with a buffer hopper, comprising two base plates, two parallel mixing rollers are arranged between the base plates, the two mixing rollers rotate towards each other and are used to extrude rubber material; a flipping mechanism is arranged above the mixing roller, the flipping mechanism comprises two flipping rollers, the two flipping rollers rotate towards each other and have different heights, and are used to reduce the deviation angle of the rubber material pulled out from the mixing roller; a screw rod is arranged on the front side of the flipping roller, a first sliding block is threadedly arranged on the screw rod, two limit columns are fixedly connected to the first sliding block, and a blocking column is arranged at the end of each limit column to prevent the rubber material accumulated between the two limit columns from overflowing; a guide rod is fixedly arranged on the front side of the screw rod, and is used to pre-guide the extruded rubber material of the mixing roller.

[0005] Furthermore, a sliding rod is fixedly connected to one side of the mixing roller, a second sliding block is slidingly sleeved on the sliding rod, a tool holder is fixedly connected to the second sliding block, a through hole is opened on the tool holder, a latch is matched in the through hole, the latch and the tool holder are connected by a spring, and the spring is in a stretched state; a tool is matchedly sleeved on the latch, and the tool is a double-layer blade with a spacing; a fixing bolt is also provided on the second sliding block for fixing the second sliding block on the sliding rod.

[0006] Furthermore, width adjustment plates are provided on both sides of the substrate. The width adjustment plates are located between the two mixing rollers. The bottom shape of the width adjustment plates is adapted to the gap formed by the two mixing rollers and are driven by electric push rods.

[0007] Furthermore, a buffer hopper is fixedly arranged below the mixing roller to hold the residue dropped during the rubber extrusion process.

[0008] The utility model provides an open mill with a buffer hopper, which has the following beneficial effects:

[0009] By setting two flip rollers to rotate in opposite directions and at different heights, the deviation angle of the rubber pulled out from the mixing roller is reduced, thereby reducing the tensile force of the rubber from the mixing roller to the flip roller, preventing the tensile force from being too large and causing the rubber to break during the flipping process; blocking columns are set at the ends of the limit columns to prevent the rubber accumulated between the two limit columns from overflowing.

[0010] A buffer hopper is fixedly arranged under the mixing roller to hold the residue dropped during the rubber extrusion process and recycle it to reduce the waste of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 It is a front view of the utility model;

[0013] Figure 3 It is a structural diagram of the first sliding block of the utility model;

[0014] Figure 4 It is a structural diagram of the second sliding block of the utility model;

[0015] Markings in the figure: 1. Base plate; 2. Mixing roller; 3. Guide rod; 4. Screw rod; 5. First slider; 6. Limit column; 7. Stop column; 8. Flip roller; 9. Width adjustment plate; 10. Cache hopper; 11. Sliding rod; 12. Second slider; 13. Fixing bolt; 14. Tool holder; 15. Latch; 16. Spring; 17. Tool; 18. Electric push rod. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments to help understand the content of the present invention. The methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercial products unless otherwise specified.

[0017] like Figure 1-3As shown, the utility model provides an open mill with a buffer hopper, comprising two base plates 1, two parallel mixing rollers 2 are arranged between the base plates 1, and the two mixing rollers 2 rotate in opposite directions to extrude rubber. A flip mechanism is arranged above the mixing roller 2, and the flip mechanism includes two flip rollers 8, which rotate in opposite directions and have different heights, so as to reduce the offset angle of pulling the rubber from the mixing roller 2, thereby reducing the rubber tensile force from the mixing roller 2 to the flip roller 8, and preventing the tensile force from being too large, resulting in the rubber breaking during the flipping process. A screw rod 4 is arranged on the front side of the flip roller 8, and a first slider 5 is arranged on the screw rod 4 in threaded cooperation, and two limit columns 6 are fixedly connected to the first slider 5, and a stop column 7 is arranged at the end of each limit column 6 to prevent the rubber accumulated between the two limit columns 6 from overflowing. A guide rod 3 is fixedly arranged on the front side of the screw rod 4, which is used to pre-guide the extruded rubber from the mixing roller 2, change the direction of the rubber entering the flip roller 8 in advance, and reduce the tensile force on the rubber.

[0018] When in use, the raw material is put between the two mixing rollers 2, and the raw material is extruded to form a rubber material; when the rubber material needs to be turned over, the rubber material is cut to a width smaller than the distance between the two limiting posts 6, and then the cut rubber material is sequentially passed over the top of the guide rod 3, between the two limiting posts 6, and finally put between the two turning rollers 8; because the distance between the two limiting posts 6 is smaller than the width on the mixing roller 2, the rubber material will accumulate between the two limiting posts 6, and the rubber material wider than the two limiting posts 6 will be turned over due to the limitation of the two limiting posts 6 during accumulation, and the turned over rubber material will enter the two turning rollers 8 for extrusion, and finally re-enter the two mixing rollers 2 for re-extrusion after turning over. The first slider 5 can also be driven to move by the rotation of the screw rod 4 to change the position of the first slider 5, thereby changing the turning position of the rubber material, so that the rubber material is mixed more evenly.

[0019] Width adjustment plates 9 are provided on both sides of the base plate 1. The width adjustment plates 9 are located between the two mixing rollers 2. The bottom shape of the width adjustment plates 9 is adapted to the gap formed by the two mixing rollers 2 and driven by an electric push rod 18. When in use, the width of the rubber on the mixing roller 2 is changed by changing the distance between the two width adjustment plates 9. A buffer hopper 10 is fixedly provided below the mixing roller 2 to hold the residue dropped during the rubber extrusion process and recycle it to reduce the waste of raw materials.

[0020] like Figure 4As shown, a sliding rod 11 is fixedly connected to one side of the mixing roller 2, and a second sliding block 12 is slidingly sleeved on the sliding rod 11, and a tool holder 14 is fixedly connected to the second sliding block 12. A through hole is opened on the tool holder 14, and a latch 15 is matched in the through hole. The latch 15 and the tool holder 14 are connected by a spring 16, and the spring 16 is in a stretched state. A tool 17 is matched with the latch 15, and the tool 17 is a double-layer blade with a spacing. A fixing bolt 13 is also provided on the second sliding block 12, which is used to fix the second sliding block 12 on the sliding rod 11.

[0021] When in use, move the second slider 12 to the middle of the rubber material, adjust the inclination angle of the tool holder 14, so that the tool 17 can be attached to the rubber material for cutting, and the double-layer blade can cut a rubber strip of the same width for subsequent product testing. When the tool 17 needs to be replaced, pull out the latch 15, take out the old tool 17, replace it with a new tool 17, and re-set it on the outside of the latch 15. The latch 15 clamps the new tool 17 under the elastic force of the spring 16 to complete the replacement.

[0022] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] However, what is described above is only a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. An open mill with a buffer hopper, comprising two base plates, between which two parallel mixing rollers are arranged, the two mixing rollers rotate towards each other and are used to extrude rubber materials; a turning mechanism is arranged above the mixing rollers, characterized in that: The flipping mechanism includes two flipping rollers, which rotate towards each other and have different heights, so as to reduce the deviation angle of the rubber material pulled out from the mixing roller; a screw rod is arranged on the front side of the flipping roller, and a first sliding block is arranged on the screw rod in threaded cooperation, and two limit columns are fixedly connected to the first sliding block, and a blocking column is arranged at the end of each limit column to prevent the rubber material accumulated between the two limit columns from overflowing; a guide rod is fixedly arranged on the front side of the screw rod, so as to pre-guide the extruded rubber material of the mixing roller.

2. The open mill with a buffer hopper according to claim 1, characterized in that: A sliding rod is fixedly connected to one side of the mixing roller, a second sliding block is slidingly sleeved on the sliding rod, a tool holder is fixedly connected to the second sliding block, a through hole is opened on the tool holder, a latch is matched in the through hole, the latch and the tool holder are connected by a spring, and the spring is in a stretched state; a tool is matched with a sleeve on the latch, and the tool is a double-layer blade with a spacing; a fixing bolt is also provided on the second sliding block for fixing the second sliding block on the sliding rod.

3. The open mixing mill with a buffer hopper according to claim 1, characterized in that: Width-adjusting plates are provided on both sides of the substrate. The width-adjusting plates are located between the two mixing rollers. The bottom shape of the plates is adapted to the gap formed by the two mixing rollers and are driven by electric push rods.

4. An open mixing mill with a buffer hopper according to any one of claims 1 to 3, characterized in that: A buffer hopper is fixedly arranged below the mixing roller to hold the material residue dropped during the rubber extrusion process.

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