Three-roller type feeding machine and cable processing device

Abstract

The invention belongs to the technical field of cable processing equipment, and discloses a three-roller type feeding machine and a cable processing device.The three-roller type feeding machine comprises a first roller, a second roller, a third roller, a strip cutting wheel assembly and a differential transmission mechanism, and the differential transmission mechanism is used for driving the first roller, the second roller and the third roller to rotate; the first roller and the second roller are arranged side by side, a gap is reserved between the first roller and the second roller, the first roller and the second roller rotate oppositely, the rotating speed of the first roller is smaller than that of the second roller, the slitting wheel assembly comprises a slitting wheel, and the slitting wheel is arranged below the first roller and attached to the first roller. The third roller is arranged above the side, away from the second roller, of the first roller, a gap is reserved between the third roller and the first roller, the third roller and the first roller rotate oppositely, and the rotating speed of the third roller is larger than that of the first roller. According to the three-roller type feeding machine, the problem that rubber materials fall off from the first roller in the feeding process can be solved, smooth production is guaranteed, the production efficiency is improved, and economic losses are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cable processing equipment, and in particular to a three-roller feeder and a cable processing device. Background Art

[0002] When processing the sheath layer of the rubber cable, the rubber material of the sheath needs to be continuously supplied to the entrance of the extruder. At present, most of the rubber materials are transported by the feeder. The existing feeder squeezes the silicone material in the silicone material pile into sheets through two rollers. The sheet rubber will adhere to one of the rollers. The sheet rubber is then cut into strip rubber by the cutting wheel and finally transported to the entrance of the extruder. The remaining sheet rubber is integrated into the rubber material pile as the roller rotates, and continues to be extruded into a whole sheet of sheet rubber. However, when the rubber material is harder and less viscous, the remaining sheet rubber has low adhesion after being cut by the cutting wheel knife, and will fall off from the roller. As the silicone material in the silicone material pile is squeezed into sheet rubber, more and more sheet rubber remaining after cutting falls off, and the rubber material that falls off will adhere to the feeder and extruder. The rubber material that falls off adheres to too many impurities and cannot be used. Therefore, the existing feeding machine will cause a large amount of rubber material waste, cause production suspension, and generate a large amount of economic losses.

[0003] Therefore, a three-roller feeder and a cable processing device are urgently needed to solve the above-mentioned technical problems. Summary of the invention

[0004] The first object of the present invention is to provide a three-roller feeder that can solve the problem that harder and less adhesive rubber materials are easily detached from the rollers during the conveying process, adhere to a large amount of impurities, and cannot be used further, resulting in a large amount of rubber material waste, which in turn causes production suspension and generates a large amount of economic losses.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A three-roller feeder, comprising:

[0007] A first roller, a second roller, a third roller, a slitting wheel assembly and a differential transmission mechanism, wherein 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 rotation speed of the second roller is the same as the rotation 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 greater 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 strip cutting wheel assembly also includes a bracket, the bracket is placed below the first roller, and the strip cutting 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 as described above, and further comprises an extruder, wherein the extruder is placed below the strip cutting wheel assembly so that the three-roller feeder supplies rubber material to the extruder.

[0018] The beneficial effects of the present invention are:

[0019] The three-roller feeder provided by the present invention can achieve the adhesion of sheet rubber 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 setting the third roller which is opposite to the first roller and the rotation speed of the third roller is 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 strip cutting wheel and attached to the first roller during the rotation of the third roller, and the sheet rubber can be kept attached to the first roller. The setting of the third roller can make the remaining sheet rubber with harder material and poorer adhesion always fit with the first roller, and can be integrated into the rubber material pile with the rotation of the first roller and the third roller, so as to avoid the problem that the rubber material cannot be used further due to being attached 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 loss.

[0020] The cable processing equipment provided by the present invention can, when processing the sheath layer, use a three-roller feeder to completely feed the rubber material in the rubber material pile into the extruder, 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 further avoiding economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first perspective schematic diagram of the working state of the three-roller feeder provided by the present invention;

[0022] Figure 2 It is a second viewing angle schematic diagram of the working state of the three-roller feeder provided by the present invention.

[0023] In the figure:

[0024] 100, rubber pile; 101, sheet rubber; 102, strip rubber;

[0025] 1. The first roller; 2. The second roller; 3. The third roller; 4. The slitting wheel. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0030] Embodiment 1

[0031] like Figure 1 and Figure 2As shown, this embodiment provides a three-roller feeder, including a first roller 1, a second roller 2, a third roller 3, a stripping 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, wherein the first roller 1 and the second roller 2 are arranged side by side with a gap between them, and the first roller 1 and the second roller 2 rotate towards each other, and when the rubber material in the rubber material pile 100 enters the gap between the first roller 1 and the second roller 2, the rubber material will be squeezed into a sheet of rubber 101. The rotation speed of the first roller 1 is less than that of the second roller 2, and at this time, the sheet of rubber 101 will adhere to the first roller 1, and the stripping wheel assembly includes a stripping wheel 4, which is placed below the first roller 1 and fits with the first roller 1, and as the first roller 1 rotates, the stripping wheel 4 can cut out a strip of rubber 102, and the strip of rubber 102 enters the inlet of the extruder, and the remaining sheet of rubber 101 is retained on the first roller 1. The third roller 3 is placed obliquely above the side of the first roller 1 facing 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 that 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 to prevent 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 material 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 can make the sheet rubber 101 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 setting 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 strip cutting wheel 4 and adhere to the first roller 1 during the rotation of the third roller 3, and can keep it attached to the first roller 1. The setting of the third roller 3 can make the remaining sheet rubber 101 with harder material and poorer adhesion always fit with the first roller 1, and can be integrated into the rubber material pile 100 with the rotation of the first roller 1 and the third roller 3, so as to avoid the problem that the rubber material falls off from the first roller 1 and adheres to a large amount of impurities, resulting in the inability to continue to use, thereby reducing the waste of rubber material and avoiding the occurrence of economic losses.

[0033] In this embodiment, the differential transmission mechanism includes a driving member, a first gear, a second gear, a third gear and three connecting shafts, wherein the output end of the driving member is connected to the first gear to drive 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 is meshed with the first gear, and after the driving member drives the first gear to rotate, the second gear is connected to the second roller 2 via a connecting shaft, and the third gear is placed obliquely above the first gear on the side away from the second gear. When the first gear rotates, the rotation direction of the third gear is opposite to the rotation direction of the first gear, and the third gear is connected to the third roller 3 via a connecting shaft, so that the differential transmission mechanism can be realized to enable the first roller 1 and the second roller 2 to rotate towards each other, and the first roller 1 and the third roller 3 to rotate in opposite directions. Specifically, the first gear drives the first roller 1 to rotate clockwise, the second gear drives the second roller 2 to rotate counterclockwise, and the third gear drives the third roller 3 to rotate counterclockwise. Regarding the differential transmission mechanism, its structure and working principle belong to the conventional knowledge in the field of mechanics and do not belong to the key protection content of this embodiment. In this embodiment, the driving member can be a motor.

[0034] Preferably, the speed ratio of the first roller 1 to the second roller 2 is about 1:1.2-1.3, so that the rubber material in the rubber material pile 100 can be extruded into the sheet rubber 101 without affecting the speed of the rubber material supplied to the extruder. If the rotation 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, and then affect the quality of the strip rubber 102 in the extruder, and even cause the quality of the sheath layer in the cable to be affected. Preferably, the speed ratio of the first roller 1 to the third roller 3 is about 1:1.2-1.3, so that the remaining sheet rubber 101 can be uniformly introduced into the rubber material pile 100. If the rotation 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 of the three-roll feeder supplying rubber material to the extruder, and affecting the processing efficiency of the cable.

[0035] Preferably, the rotation speed of the second roller 2 is the same as the rotation speed 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 rotation speed of the second roller 2 is the same as the rotation speed of the third roller 3, which makes it easy for the staff to regulate the differential transmission mechanism and reduces the operating difficulty of 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, so that the compactness and molding quality of the rubber sheet 101 are guaranteed. Preferably, the diameter of the first roller 1 is greater 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 occupied space of the first roller 1 and the third roller 3 is reduced, so that the three-roller feeder is 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. According to the different materials of the rubber materials, 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 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. In this way, it can be ensured that the remaining sheet rubber 101 can smoothly and completely enter between the first roller 1 and the third roller 3, and at the same time, the circumferential surface of the third roller 3 can abut against the remaining sheet rubber 101, providing an upward external force to the remaining sheet rubber 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 sheet rubber 101 will be piled up and cannot be smoothly returned to the rubber pile 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 sheet rubber 101 will not be subjected to an 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 material pile 100 for subsequent re-extrusion.

[0039] Exemplarily, the strip cutting wheel assembly also includes a bracket, which is placed below the first roller 1, and the strip cutting wheel 4 is rotatably placed on the bracket, so that the assembly of the bracket is more stable, ensuring the molding quality of the strip rubber 102. Specifically, the bracket includes two opposite pillars and a connecting pin, and the two pillars are respectively provided with assembly holes, and the two assembly holes are opposite to each other. The strip cutting wheel 4 is placed between the two pillars, and the connecting pin passes through the connecting assembly holes and the strip cutting wheel 4, so that the strip cutting wheel 4 is rotatably placed on the bracket. Preferably, the strip cutting wheel assembly is placed at the center of the first roller 1, that is, the strip cutting wheel 4 cuts the central area of ​​the sheet rubber 101, and the remaining sheet rubber 101 will be relatively more stable and can be relatively more stably attached to the first roller 1.

[0040] Embodiment 2

[0041] This embodiment provides a cable processing device, including the three-roller feeder in the first embodiment. The cable processing device also includes an extruder, which is placed below the strip cutting wheel assembly so that the three-roller feeder supplies the strip rubber 102 to the extruder.

[0042] The cable processing device provided in this embodiment, when processing the sheath layer, the three-roller feeder can completely feed the rubber material in the rubber material pile 100 into the extruder, thereby avoiding the problem of rubber material falling when the three-roller feeder transports the rubber material to the extruder, avoiding a large amount of rubber material being wasted, and further avoiding the occurrence of economic losses.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A three-roller feeder, characterized in that: include: A first roller (1), a second roller (2), a third roller (3), a stripping 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) being arranged side by side with a gap between them, the first roller (1) and the second roller (2) rotating towards each other, and the rotation speed of the first roller (1) is less than the rotation speed of the second roller (2), the stripping wheel assembly comprises a stripping wheel (4), the stripping wheel (4) is arranged below the first roller (1) and 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) rotating away from the first roller (1) and leaving 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 rotation speed ratio between the first roller (1) and the second roller (2) is 1:1.2-1.

3.

3. The three-roller feeder according to claim 1, characterized in that: The rotation speed ratio between the first roller (1) and the third roller (3) is 1:1.2-1.

3.

4. According to the three-roller feeder according to claim 1, 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, wherein 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 strip cutting wheel assembly also includes a bracket, which is placed below the first roller (1), and the strip cutting wheel (4) is rotatably placed on the bracket.

10. A cable processing device, characterized in that: The cable processing device comprises a three-roller feeder as described in any one of claims 1 to 9, wherein the cable processing device further comprises an extruder, wherein the extruder is disposed below the strip cutting wheel assembly so that the three-roller feeder supplies rubber material to the extruder.

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