Three-roller type feeding machine and cable processing device
The differential transmission design of the three-roller feeder solves the problem of rubber material falling off in the feeder, realizes the continuous transportation of rubber material and reduces waste, thus improving production efficiency.
Patent Information
- Application Number
- CN202422861634.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-22
AI Technical Summary
When the existing feeder processes harder rubber materials with lower adhesion, the sheet rubber easily falls off the roller, resulting in waste of rubber materials and economic losses.
A three-roller feeder is used. The differential transmission mechanism makes the speed of the first roller lower than that of the second roller. The third roller rotates in the opposite direction to the first roller and rotates faster than the first roller, providing an upward external force to keep the sheet rubber attached to the first roller, and then cuts it into strip rubber through the cutting wheel to supply it to the extruder.
It effectively avoids the shedding of rubber materials and the adhesion of impurities, reduces the waste of rubber materials, avoids production suspension and economic losses, and ensures the continuous transportation of rubber materials.
Smart Images
Figure CN223395716U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable processing equipment, in particular to a three-roller feeder and a cable processing device. Background Art
[0002] During the processing of the rubber cable sheath, the rubber material for the sheath must be continuously fed to the inlet of the extruder. Currently, this is mostly done through a feeder. Existing feeders use two rollers to squeeze silicone material from a pile into sheets. The sheets adhere to one of the rollers, where they are then cut into strips by a slitting wheel. Finally, the sheets are fed to the inlet of the extruder. The remaining sheets merge into the rubber pile as the rollers rotate, and continue to be extruded into a single sheet. However, for hard and low-viscosity rubber, the remaining sheets after being cut by the slitting wheel have low adhesion and tend to fall off the rollers. As the silicone material from the pile is squeezed into sheets, more and more of the remaining sheets fall off, clinging to the feeder and extruder. These detached sheets are then loaded with impurities, making them unusable. Consequently, existing feeders waste a large amount of rubber material, causing production halts and significant economic losses.
[0003] Therefore, a three-roller feeder and a cable processing device are urgently needed to solve the above-mentioned technical problems. Utility Model Content
[0004] The first purpose of the utility model is to provide a three-roller feeder, which can solve the problem that hard and low-adhesion rubber materials are easily detached from the rollers during the transmission process, adhere to a large amount of impurities, and cannot be used further, resulting in a large amount of rubber material waste, and then causing production suspension and a large amount of economic losses.
[0005] To achieve this purpose, the present invention adopts the following technical solutions:
[0006] A three-roller feeder, comprising:
[0007] The first roller, the second roller, the third roller, the slitting wheel assembly and the differential transmission mechanism, the differential transmission mechanism is used to drive the first roller, the second roller and the third roller to rotate, the first roller and the second roller are arranged side by side with a gap between them, the first roller and the second roller rotate towards each other, and the rotation speed of the first roller is less than the rotation speed of the second roller, the slitting wheel assembly includes a slitting wheel, the slitting wheel is placed below the first roller and fits with the first roller, the third roller is placed obliquely above the side of the first roller away from the second roller, the third roller rotates away from the first roller and leaves a gap with the first roller, and the rotation speed of the third roller is greater than the rotation speed of the first roller.
[0008] As a preferred technical solution of the three-roller feeder, the speed ratio of the first roller to the second roller is: 1:1.2~1.3.
[0009] As a preferred technical solution of the three-roller feeder, the speed ratio of the first roller to the third roller is: 1:1.2~1.3.
[0010] As a preferred technical solution of the three-roller feeder, the rotational speed of the second roller is the same as the rotational speed of the third roller.
[0011] As a preferred technical solution of the three-roller feeder, the diameter of the first roller is the same as the diameter of the second roller, and the diameter of the first roller is larger than the diameter of the third roller.
[0012] As a preferred technical solution of the three-roller feeder, the diameter ratio of the first roller to the third roller is 2:1 or 3:1.
[0013] As a preferred technical solution of the three-roller feeder, the gap width between the first roller and the second roller is consistent with the gap width between the first roller and the third roller.
[0014] As a preferred technical solution of the three-roller feeder, the length of the third roller is consistent with the length of the first roller.
[0015] As a preferred technical solution of the three-roller feeder, the slitting wheel assembly further includes a bracket, which is placed below the first roller, and the slitting wheel is rotatably placed on the bracket.
[0016] The second object of the present invention is to provide a cable processing device. To achieve this object, the present invention adopts the following technical solutions:
[0017] A cable processing device comprises the three-roller feeder described above, and further comprises an extruder, wherein the extruder is placed below the slitting wheel assembly so that the three-roller feeder supplies rubber material to the extruder.
[0018] The beneficial effects of the utility model are:
[0019] The three-roller feeder provided by the utility model realizes that the sheet rubber can adhere to the surface of the first roller by making the rotation speed of the first roller smaller than the rotation speed of the second roller. By arranging the third roller in a direction opposite to the first roller, and the rotation speed of the third roller being larger than the rotation speed of the first roller, the third roller can always provide an upward external force to the sheet rubber remaining after being cut by the stripping wheel and adhering to the first roller during the rotation process, and can keep the sheet rubber adhering to the first roller. The arrangement of the third roller can make the remaining sheet rubber with a harder material and poorer adhesion always adhere to the first roller, and can be integrated into the rubber material pile as the first roller and the third roller rotate, thereby avoiding the problem that the rubber material cannot be used further due to being adhered to a large amount of impurities due to falling off the first roller, thereby reducing the waste of rubber material and avoiding a large amount of economic losses.
[0020] The cable processing equipment provided by the utility model can completely feed the rubber material in the rubber material pile into the extruder when processing the sheath layer, thereby solving the problem of rubber material falling when the existing feeder conveys rubber material to the extruder, avoiding a large amount of rubber material waste and thus avoiding economic losses. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a first-perspective schematic diagram of the working state of the three-roller feeder provided by the utility model;
[0022] Figure 2 This is a second perspective schematic diagram of the working state of the three-roller feeder provided by the utility model.
[0023] In the picture:
[0024] 100. Rubber pile; 101. Rubber sheet; 102. Rubber strip;
[0025] 1. First roller; 2. Second roller; 3. Third roller; 4. Slitting wheel. DETAILED DESCRIPTION
[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.
[0027] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0029] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.
[0030] Example 1
[0031] like Figure 1 and Figure 2As shown, this embodiment provides a three-roller feeder, comprising a first roller 1, a second roller 2, a third roller 3, a slitting wheel assembly, and a differential drive mechanism. The differential drive mechanism is used to drive the first roller 1, the second roller 2, and the third roller 3 to rotate. The first roller 1 and the second roller 2 are arranged side by side with a gap between them. The first roller 1 and the second roller 2 rotate toward each other. When rubber material in a rubber stock pile 100 enters the gap between the first roller 1 and the second roller 2, the rubber material is extruded into a sheet of rubber 101. The rotation speed of the first roller 1 is slower than that of the second roller 2, causing the sheet of rubber 101 to adhere to the first roller 1. The slitting wheel assembly includes a slitting wheel 4, which is positioned below and in contact with the first roller 1. As the first roller 1 rotates, the slitting wheel 4 cuts a strip of rubber 102, which then enters the inlet of the extruder, leaving the remaining sheet of rubber 101 on the first roller 1. The third roller 3 is placed obliquely above the first roller 1 on the side away from the second roller 2. The third roller 3 rotates in the opposite direction to the first roller 1 and there is a gap between the third roller 3 and the first roller 1. The rotation speed of the third roller 3 is greater than the rotation speed of the first roller 1. In this way, the third roller 3 can always provide an upward external force to the remaining sheet rubber 101 attached to the first roller 1 when rotating, and the remaining sheet rubber 101 will adhere to the first roller 1, preventing the remaining sheet rubber 101 from falling off relative to the first roller 1, so that the remaining sheet rubber 101 can be integrated into the rubber pile 100 as the first roller 1 and the third roller 3 rotate, waiting to be squeezed and used again.
[0032] The three-roller feeder provided in this embodiment enables the sheet rubber 101 to adhere to the surface of the first roller 1 by making the rotation speed of the first roller 1 lower than the rotation speed of the second roller 2. By providing the third roller 3 which is opposite to the first roller 1 and the rotation speed of the third roller 3 is higher than the rotation speed of the first roller 1, the third roller 3 can always provide an upward external force to the sheet rubber 101 remaining after being cut by the slitting wheel 4 and adhering to the first roller 1 during the rotation process, and the sheet rubber 101 can remain attached to the first roller 1. The provision of the third roller 3 can ensure that the remaining sheet rubber 101 with a harder material and poorer adhesion is always in contact with the first roller 1 and can be integrated into the rubber material pile 100 as the first roller 1 and the third roller 3 rotate, thereby preventing the rubber material from falling off the first roller 1 and adhering to a large amount of impurities, which makes it impossible to continue to use the rubber material, thereby reducing the waste of rubber material and avoiding economic losses.
[0033] In this embodiment, the differential transmission mechanism includes a drive member, a first gear, a second gear, a third gear, and three connecting shafts. The output end of the drive member is connected to the first gear, driving the first gear to rotate. The end face of the first gear is connected to the first roller 1 via a connecting shaft. The second gear meshes with the first gear and, after the drive member drives the first gear to rotate, rotates in the direction opposite to the second gear. The second gear is connected to the second roller 2 via a connecting shaft. The third gear is positioned diagonally above the first gear on the side facing away from the second gear. When the first gear rotates, the third gear rotates in the opposite direction to the first gear. The third gear is connected to the third roller 3 via a connecting shaft. This enables the differential transmission mechanism to rotate the first roller 1 and the second roller 2 in the opposite direction. Specifically, the first gear drives the first roller 1 clockwise, the second gear drives the second roller 2 counterclockwise, and the third gear drives the third roller 3 counterclockwise. The structure and operating principle of the differential transmission mechanism are conventional knowledge in the mechanical field and are not the subject of this embodiment. In this embodiment, the driving member can be a motor.
[0034] Preferably, the rotational speed ratio of the first roller 1 to the second roller 2 is approximately 1:1.2 to 1.3. This ensures that the rubber material in the rubber pile 100 is squeezed into sheet rubber 101 while not affecting the speed of the rubber material supplied to the extruder. If the rotational speed difference between the first roller 1 and the second roller 2 is too large, it will affect the molding quality of the sheet rubber 101, which in turn will affect the quality of the strip rubber 102 in the extruder, and even affect the quality of the sheath layer in the cable. Preferably, the rotational speed ratio of the first roller 1 to the third roller 3 is approximately 1:1.2 to 1.3. This allows the remaining sheet rubber 101 to enter the rubber pile 100 evenly. If the rotational speed difference between the third roller 3 and the first roller 1 is large, the sheet rubber 101 attached to the first roller 1 may break, affecting the speed at which the three-roll feeder supplies rubber material to the extruder and affecting the processing efficiency of the cable.
[0035] Preferably, the rotational speed of the second roller 2 is the same as that of the third roller 3, and the speed at which the rubber material in the rubber pile 100 is extruded into the sheet rubber 101 is the same as the speed at which the remaining sheet rubber 101 after cutting is returned to the rubber pile 101, further avoiding the breakage of the sheet rubber 101. At the same time, the rotational speed of the second roller 2 is the same as that of the third roller 3, which makes it easier for the staff to control the differential transmission mechanism and reduces the difficulty of operation for the staff.
[0036] In this embodiment, the diameters of the first roller 1 and the second roller 2 are the same, so that the two sides of the extruded rubber sheet 101 are subjected to the same force, thereby ensuring the compactness and molding quality of the rubber sheet 101. Preferably, the diameter of the first roller 1 is larger than the diameter of the third roller 3. While ensuring that the remaining rubber sheet 101 is always subjected to an upward external force, the space occupied by the first roller 1 and the third roller 3 is reduced, making the three-roller feeder miniaturized as a whole. Specifically, the diameter ratio of the first roller 1 to the third roller 3 is 2:1 or 3:1. That is, the diameter of the first roller 1 is 2 times or 3 times the diameter of the third roller 3. Depending on the material of the rubber material, the hardness and adhesion ability of the rubber materials are different. For a softer rubber material with stronger adhesion, a third roller 3 with a relatively smaller diameter can be selected. On the contrary, for a harder rubber material with poorer adhesion, a third roller 3 with a relatively larger diameter can be selected.
[0037] Preferably, the width of the gap between the first roller 1 and the second roller 2 is consistent with the width of the gap between the first roller 1 and the third roller 3. This ensures that the remaining rubber sheet 101 can smoothly and completely enter between the first roller 1 and the third roller 3. At the same time, the circumferential surface of the third roller 3 can abut against the remaining rubber sheet 101, providing an upward external force to the remaining rubber sheet 101. If the gap between the first roller 1 and the third roller 3 is smaller than the gap between the first roller 1 and the second roller 2, the remaining rubber sheet 101 will accumulate and will not be smoothly returned to the rubber stockpile 100. If the gap between the first roller 1 and the third roller 3 is larger than the gap between the first roller 1 and the second roller 2, the remaining rubber sheet 101 will not be subjected to the upward external force and will easily fall off the first roller 1.
[0038] In this embodiment, the length of the third roller 3 is consistent with that of the first roller 1, so that all the remaining sheet rubber 101 attached to the first roller 1 can be subjected to the upward external force given by the third roller 3, further ensuring that all the remaining sheet rubber 101 attached to the first roller 1 can be returned to the rubber pile 100 for subsequent re-extrusion.
[0039] Exemplarily, the slitting wheel assembly further includes a bracket, which is positioned below the first roller 1, and the slitting wheel 4 is rotatably positioned on the bracket. This ensures a more stable assembly of the bracket and ensures the molding quality of the strip rubber 102. Specifically, the bracket includes two opposing pillars and a connecting pin. The two pillars are provided with assembly holes, and the two assembly holes are opposed to each other. The slitting wheel 4 is positioned between the two pillars. The connecting pin passes through the assembly holes and connects the slitting wheel 4, so that the slitting wheel 4 is rotatably positioned on the bracket. Preferably, the slitting wheel assembly is placed at the center of the first roller 1, that is, the slitting wheel 4 cuts the central area of the sheet rubber 101, and the remaining sheet rubber 101 is relatively more stable and can be relatively more stably attached to the first roller 1.
[0040] Example 2
[0041] This embodiment provides a cable processing device, including the three-roller feeder in embodiment 1. The cable processing device also includes an extruder, which is placed below the slitting wheel assembly so that the three-roller feeder supplies strip rubber 102 to the extruder.
[0042] The cable processing device provided in this embodiment can completely feed the rubber material in the rubber material pile 100 into the extruder when processing the sheath layer, thereby avoiding the problem of rubber material falling when the three-roller feeder conveys the rubber material to the extruder, avoiding a large amount of rubber material waste, and thus avoiding economic losses.
[0043] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. A three-roller feeder, characterized in that: include: The invention relates to a first roller (1), a second roller (2), a third roller (3), a slitting wheel assembly and a differential transmission mechanism, wherein the differential transmission mechanism is used to drive the first roller (1), the second roller (2) and the third roller (3) to rotate, the first roller (1) and the second roller (2) are arranged side by side with a gap between them, the first roller (1) and the second roller (2) rotate in opposite directions, and the rotation speed of the first roller (1) is less than the rotation speed of the second roller (2), the slitting wheel assembly includes a slitting wheel (4), the slitting wheel (4) is arranged below the first roller (1) and is in contact with the first roller (1), the third roller (3) is arranged obliquely above the side of the first roller (1) away from the second roller (2), the third roller (3) rotates in opposite directions with the first roller (1) and leaves a gap with the first roller (1), and the rotation speed of the third roller (3) is greater than the rotation speed of the first roller (1).
2. The three-roller feeder according to claim 1, characterized in that: The rotational speed ratio of the first roller (1) to the second roller (2) is 1:1.2-1.
3.
3. The three-roller feeder according to claim 1, characterized in that: The rotational speed ratio of the first roller (1) to the third roller (3) is 1:1.2-1.
3.
4. The three-roller feeder according to claim 1, characterized in that: The rotation speed of the second roller (2) is the same as the rotation speed of the third roller (3).
5. The three-roller feeder according to claim 1, characterized in that: The diameter of the first roller (1) is the same as the diameter of the second roller (2), and the diameter of the first roller (1) is greater than the diameter of the third roller (3).
6. The three-roller feeder according to claim 5, characterized in that: The diameter ratio of the first roller (1) to the third roller (3) is 2:1 or 3:
1.
7. The three-roller feeder according to claim 1, characterized in that: The gap width between the first roller (1) and the second roller (2) is consistent with the gap width between the first roller (1) and the third roller (3).
8. The three-roller feeder according to claim 1, characterized in that: The length of the third roller (3) is consistent with the length of the first roller (1).
9. The three-roller feeder according to claim 1, characterized in that: The slitting wheel assembly further comprises a bracket, the bracket being placed below the first roller (1), and the slitting wheel (4) being rotatably placed on the bracket.
10. A cable processing device, characterized in that: The cable processing device comprises the three-roller feeder according to any one of claims 1 to 9, and further comprises an extruder, wherein the extruder is placed below the slitting wheel assembly so that the three-roller feeder supplies rubber material to the extruder.