A rubber slitting machine

Abstract

This utility model discloses a rubber slitting machine, comprising: a pressing mechanism, a cutting mechanism, a trimming mechanism, and a conveyor belt; the cutting mechanism is located below the pressing mechanism and is used to cut the extruded rubber sheet into rubber strips; the front end of the conveyor belt is connected to the rear end of the cutting mechanism and is used to transport the rubber strips cut by the cutting mechanism; the trimming mechanism is located above the middle of the conveyor belt and is used to cut the rubber strips into rubber segments of different lengths; an adhesive roller is rolled above the rear end of the conveyor belt, and the roller surface of the adhesive roller elastically abuts against the upper surface of the conveyor belt to adhere rubber debris from the surface of the conveyor belt. This utility model embodiment, through the adhesive roller elastically abutting against the upper surface of the conveyor belt at the rear end of the conveyor belt, can promptly adhere and clean residual rubber debris on the conveyor belt during operation, effectively maintaining the cleanliness of the conveyor belt surface and improving the yield rate of the rubber strips.

Description

Technical Field

[0001] This utility model relates to the field of material processing equipment technology, and in particular to a rubber slitting machine. Background Technology

[0002] In the manufacturing process of some silicone rubber products, silicone rubber strip raw materials are often used. These raw materials are usually made by extruding hot-melted rubber into sheets and then cutting them.

[0003] Existing rubber slitting mechanisms typically use conveyor belts to transport the cut rubber strips. However, during the transport and removal of the strips, some rubber debris often adheres to the conveyor belt, which is difficult to remove in time. Furthermore, these residual rubber debris can easily mix and stick to the rubber strips being transported later, resulting in a decrease in the yield of the rubber strips. Utility Model Content

[0004] In view of this, the present invention provides a rubber slitting machine to solve the problem that existing rubber strip slitting machines have difficulty in timely removing residual rubber debris from the conveyor belt during operation.

[0005] To achieve one or more of the above objectives or other objectives, this utility model proposes: a rubber slitting machine, comprising: a pressing mechanism, a strip cutting mechanism, a cutting mechanism, and a conveyor belt;

[0006] The strip cutting mechanism is located below the pressing mechanism and is used to cut the film extruded by the pressing mechanism into strips. The front end of the conveyor belt is connected to the rear end of the strip cutting mechanism and is used to transport the strips cut by the strip cutting mechanism. The cutting mechanism is located above the middle of the conveyor belt and is used to cut the strips into segments of different lengths.

[0007] An adhesive roller is rotatably mounted above the rear end of the conveyor belt. The roller surface of the adhesive roller elastically abuts against the upper surface of the conveyor belt to adhere adhesive debris from the surface of the conveyor belt.

[0008] Preferably, the conveyor belt is symmetrically provided with support seats on both sides, and the support seats are provided with strip-shaped holes in the vertical direction. The roller shaft of the adhesive roller is rotatably connected to the strip-shaped holes. A spring is vertically provided in the strip-shaped holes, and the lower end of the spring abuts against the roller shaft of the adhesive roller to press the adhesive roller downward.

[0009] Preferably, the length of the adhesive roller is adapted to the width of the conveyor belt.

[0010] Preferably, a sensor switch is provided on one side of the conveyor belt, the sensor switch being located in front of the adhesive roller, for controlling the start and stop of the conveyor belt.

[0011] Preferably, a drive motor is provided at the bottom of the rear end of the conveyor belt. The drive motor is driven and connected to the conveyor belt. The drive motor is electrically connected to the inductive switch. The inductive switch is used to control the start and stop of the drive motor.

[0012] Preferably, the tablet pressing mechanism includes an active pressure roller and a driven pressure roller arranged at intervals, wherein the active pressure roller and the driven pressure roller are parallel and rotate in opposite directions.

[0013] Preferably, the slicing mechanism includes a blade holder and a plurality of blades spaced apart on the blade holder, the blade holder being parallel to the active pressure roller, and the upper ends of the blades being tangent to the roller surface of the active pressure roller.

[0014] Preferably, the cutting mechanism includes a support frame, a telescopic cylinder, a blade holder, and a cutter. The support frame is mounted above the conveyor belt, the telescopic cylinder is located in the middle of the support frame, the telescopic end of the telescopic cylinder is connected to the top of the blade holder, and the cutter is mounted downwards at the bottom of the blade holder. The telescopic cylinder can drive the blade holder and the cutter to move vertically up and down.

[0015] Preferably, a limiting frame is provided between the support frames, and the bottom of the cutter holder can abut against the top of the limiting frame. When the cutter holder abuts against the limiting frame, the lower end of the cutter abuts tightly against the upper surface of the conveyor belt.

[0016] Preferably, a dust cover is provided above the tableting mechanism, and a feed window is provided on the side wall of the dust cover away from the conveyor belt.

[0017] Implementing the embodiments of this utility model will have the following beneficial effects:

[0018] After adopting the above-mentioned rubber slitting machine, the adhesive roller set at the rear end of the conveyor belt and elastically abutting against the upper surface of the conveyor belt can promptly adhere and clean the residual rubber debris on the conveyor belt during the working process, effectively maintaining the cleanliness of the conveyor belt surface and improving the yield of the strips. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] in:

[0021] Figure 1This is a schematic diagram of the overall structure of the rubber slitting machine proposed in this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the rubber slitting machine proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the cutting mechanism of the rubber slitting machine proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the adhesive roller structure of the rubber slitting machine proposed in this utility model.

[0025] Reference numerals: 10, tablet pressing mechanism; 11, driving pressure roller; 12, driven pressure roller; 20, strip cutting mechanism; 21, knife holder; 22, blade; 30, cutting mechanism; 31, support frame; 32, telescopic cylinder; 33, knife holder; 34, cutter; 35, limit frame; 40, conveyor belt; 41, adhesive roller; 42, support base; 43, strip hole; 44, spring; 45, inductive switch; 46, drive motor; 50, dust cover; 51, feed window. Detailed Implementation

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] like Figure 1-4 The image shows an embodiment provided by this utility model.

[0030] This utility model provides a rubber slitting machine for continuous processing of elastic rubber materials such as rubber and silicone. The molten rubber material is sequentially processed into sheets, strips, and segments of a specific length. The overall structure includes a sheet pressing mechanism 10, a strip cutting mechanism 20, a cutting mechanism 30, and a conveyor belt 40. Each mechanism is connected sequentially along the rubber material processing flow to achieve automated slitting from raw materials to finished products.

[0031] Specifically, the pressing mechanism 10 is used to extrude molten rubber into a sheet of uniform thickness. It includes an active pressure roller 11 and a driven pressure roller 12 spaced apart. The active pressure roller 11 and the driven pressure roller 12 are parallel and rotate in opposite directions. For example, when the active pressure roller 11 rotates clockwise, the driven pressure roller 12 rotates counterclockwise, forming an extrusion gap between them for the rubber to pass through. During operation, the active pressure roller 11 is driven to rotate by a drive device (such as a servo motor), and the driven pressure roller 12 rotates synchronously in the opposite direction with the active pressure roller 11 under the action of the friction of the rubber. After the rubber enters from the gap between the two pressure rollers, it is extruded into a continuous sheet of a preset thickness (such as 0.5-5mm). In addition, to prevent external dust from contaminating the rubber material during processing, a dust cover 50 is installed above the tableting mechanism 10. A feed window 51 is opened on the side wall of the dust cover 50 away from the conveyor belt 40. Operators can continuously add rubber material into the tableting mechanism 10 through the feed window 51. At the same time, the dust cover 50 can effectively block dust in the workshop environment.

[0032] Specifically, the strip cutting mechanism 20 is located below the pressing mechanism 10 and is used to cut the film extruded by the pressing mechanism 10 into strips of a preset width. The strip cutting mechanism 20 includes a blade holder 21 and several blades 22 spaced apart on the blade holder 21. The blade holder 21 is parallel to the active pressure roller 11, and the upper ends of the blades 22 are tangential to the roller surface of the active pressure roller 11. This structural design ensures that the film immediately enters the strip cutting process after being output from the pressing mechanism 10, reducing deformation of the film during transport. Simultaneously, the tangential fit between the blades 22 and the active pressure roller 11 ensures the flatness of the cutting edges, preventing burrs on the strips. In practical applications, blades 22 with different spacing can be replaced according to product requirements. For example, a 5mm spacing between blades 22 can cut strips 5mm wide, while a 10mm spacing corresponds to strips 10mm wide.

[0033] Specifically, the front end of the conveyor belt 40 is connected to the rear end of the cutting mechanism 20 to convey the rubber strips cut by the cutting mechanism 20. The conveying direction is consistent with the length direction of the rubber strip to ensure that the rubber strip does not deviate during the conveying process. To achieve fixed-length cutting of the rubber strip, the cutting mechanism 30 is set above the middle of the conveyor belt 40 to cut the continuously conveyed rubber strip into rubber segments of different lengths (such as 20mm, 50mm, etc.). Specifically, the cutting mechanism 30 includes a support frame 31, a telescopic cylinder 32, a blade holder 33, and a cutter 34. The support frame 31 is mounted above the conveyor belt 40 and is typically a portal frame structure with two uprights fixed to the frame of the conveyor belt 40. The telescopic cylinder 32 is located in the middle of the support frame 31, and its telescopic end is connected to the top of the blade holder 33. The cutter 34 is mounted downwards at the bottom of the blade holder 33. The telescopic cylinder 32 can drive the blade holder 33 and the cutter 34 to move vertically up and down. When the rubber strip is conveyed to the preset position below the cutter 34, the telescopic cylinder 32 extends to push the cutter 34 downwards. After completing one cut, it quickly retracts and resets, waiting for the next cutting instruction. Furthermore, a limit frame 35 is provided between the support frames 31, and the cutter 34 can pass through the middle of the limit frame 35. The bottom of the cutter holder 33 can abut against the top of the limit frame 35. When the cutter holder 33 abuts against the limit frame 35, the lower end of the cutter 34 abuts tightly against the upper surface of the conveyor belt 40. This design can ensure that the cutting depth is consistent each time and avoid the rubber strip not being completely cut or the cutter 34 being excessively worn due to cylinder stroke error.

[0034] Furthermore, due to the adhesive properties of the rubber compound, some rubber debris easily adheres to the surface of the conveyor belt 40 during the slitting and conveying process. If not cleaned in time, this may lead to contamination of the subsequent rubber strip surface or displacement during conveying, affecting the product yield. To address this, an adhesive roller 41 is rolled above the rear end of the conveyor belt 40. The roller surface of the adhesive roller 41 elastically abuts against the upper surface of the conveyor belt 40 to adhere the rubber debris on the surface of the conveyor belt 40. The roller surface of the adhesive roller 41 is typically made of high-viscosity silicone. When the conveyor belt 40 is running, the adhesive roller 41 rotates passively due to the friction of the conveyor belt 40 surface, and its roller surface can promptly adhere and clean the residual rubber debris on the surface of the conveyor belt 40, thereby effectively maintaining the cleanliness of the conveyor belt 40 surface.

[0035] Furthermore, to achieve elastic contact between the adhesive roller 41 and the conveyor belt 40, support seats 42 are symmetrically arranged on both sides of the conveyor belt 40. Slotted holes 43 are vertically arranged within the support seats 42. The length of the slotted holes 43 is greater than the diameter of the roller shaft of the adhesive roller 41, providing space for its vertical movement. The two ends of the roller shaft of the adhesive roller 41 are rotatably connected to the slotted holes 43 on both sides. A spring 44 is vertically arranged within the slotted holes 43. The lower end of the spring 44 abuts against the roller shaft of the adhesive roller 41, and the upper end of the spring 44 is fixed to the top of the slotted hole 43. Under the elastic force of the spring 44, the adhesive roller 41 is continuously pressed downwards. Even if the roller surface of the adhesive roller 41 becomes slightly uneven due to some adhesive debris, the adhesive roller 41 can always maintain close contact with the surface of the conveyor belt 40, ensuring the cleaning effect. Meanwhile, the length of the adhesive roller 41 is adapted to the width of the conveyor belt 40. For example, when the width of the conveyor belt 40 is 300mm, the length of the adhesive roller 41 can be set to 270-300mm, which can thoroughly clean the entire width of the conveyor belt 40 and avoid cleaning dead corners.

[0036] Furthermore, to enhance the automation level of the equipment, an inductive switch 45, such as an infrared beam sensor or a diffuse reflection sensor, is provided on one side of the conveyor belt 40. The inductive switch 45 is located in front of the adhesive roller 41, that is, on the side close to the cutting mechanism 30, and is used to control the start and stop of the conveyor belt 40. Specifically, a drive motor 46 is installed at the bottom of the rear end of the conveyor belt 40. The drive motor 46 is connected to the conveyor belt 40 and can be driven by the drive motor 46 and the transmission roller of the conveyor belt 40 through a sprocket, chain, or belt. The drive motor 46 is electrically connected to the inductive switch 45. When the front end of the rubber strip is conveyed to the detection area of ​​the inductive switch 45 (i.e., the area between the cutting mechanism 30 and the adhesive roller 41), the inductive switch 45 sends a signal to the drive motor 46 to control the motor to stop. At this time, the conveyor belt 40 stops running, which facilitates the cutting mechanism 30 to perform fixed-length cutting. After the cutting is completed, the cut rubber segment is removed in time. After the inductive switch 45 senses that there is no rubber segment in the detection area, it sends a signal again to control the motor to start, and the conveyor belt 40 continues to convey the rubber strip. This cycle realizes continuous cutting operation. Since the cut rubber segment is removed in time, it will not come into contact with the adhesive roller 41.

[0037] After adopting the above-mentioned rubber slitting machine, the adhesive roller 41, which is set at the rear end of the conveyor belt 40 and elastically abuts against the upper surface of the conveyor belt 40, can promptly adhere and clean the residual rubber debris on the conveyor belt 40 during the working process. This can effectively maintain the cleanliness of the surface of the conveyor belt 40, reduce product defects caused by debris contamination or conveying deviation, and significantly improve the yield of the strips.

[0038] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A rubber slitting machine, characterized in that, include: Tableting mechanism (10), strip cutting mechanism (20), trimming mechanism (30) and conveyor belt (40); The strip cutting mechanism (20) is located below the pressing mechanism (10) and is used to cut the film extruded by the pressing mechanism (10) into strips. The front end of the conveyor belt (40) is connected to the rear end of the strip cutting mechanism (20) and is used to transport the strips cut by the strip cutting mechanism (20). The cutting mechanism (30) is located above the middle part of the conveyor belt (40) and is used to cut the strips into segments of different lengths. A material-adhesive roller (41) is rotatably disposed above the rear end of the conveyor belt (40). The roller surface of the material-adhesive roller (41) elastically abuts against the upper surface of the conveyor belt (40) to adhere the rubber debris on the surface of the conveyor belt (40).

2. The rubber slitting machine according to claim 1, characterized in that, The conveyor belt (40) is symmetrically provided with support seats (42) on both sides. The support seats (42) are provided with strip-shaped holes (43) in the vertical direction. The roller shaft of the adhesive roller (41) is rotatably connected to the strip-shaped holes (43). A spring (44) is vertically provided in the strip-shaped holes (43). The lower end of the spring (44) abuts against the roller shaft of the adhesive roller (41) to press the adhesive roller (41) downward.

3. The rubber slitting machine according to claim 2, characterized in that, The length of the adhesive roller (41) is adapted to the width of the conveyor belt (40).

4. The rubber slitting machine according to claim 3, characterized in that, A sensor switch (45) is provided on one side of the conveyor belt (40). The sensor switch (45) is located in front of the adhesive roller (41) and is used to control the start and stop of the conveyor belt (40).

5. The rubber slitting machine according to claim 4, characterized in that, A drive motor (46) is provided at the bottom of the rear end of the conveyor belt (40). The drive motor (46) is driven and connected to the conveyor belt (40). The drive motor (46) is electrically connected to the inductive switch (45). The inductive switch (45) is used to control the start and stop of the drive motor (46).

6. The rubber slitting machine according to claim 1, characterized in that, The tablet pressing mechanism (10) includes an active pressure roller (11) and a driven pressure roller (12) arranged at intervals. The active pressure roller (11) and the driven pressure roller (12) are parallel and rotate in opposite directions.

7. The rubber slitting machine according to claim 6, characterized in that, The slicing mechanism (20) includes a knife holder (21) and a plurality of blades (22) spaced apart on the knife holder (21). The knife holder (21) is parallel to the active pressure roller (11), and the upper end of the blades (22) is tangent to the roller surface of the active pressure roller (11).

8. The rubber slitting machine according to claim 1, characterized in that, The cutting mechanism (30) includes a support frame (31), a telescopic cylinder (32), a blade holder (33), and a cutter (34). The support frame (31) is mounted above the conveyor belt (40). The telescopic cylinder (32) is located in the middle of the support frame (31). The telescopic end of the telescopic cylinder (32) is connected to the top of the blade holder (33). The cutter (34) is mounted downwards at the bottom of the blade holder (33). The telescopic cylinder (32) can drive the blade holder (33) and the cutter (34) to move vertically up and down.

9. The rubber slitting machine according to claim 8, characterized in that, A limit frame (35) is provided between the support frames (31). The bottom of the knife holder (33) can abut against the top of the limit frame (35). When the knife holder (33) abuts against the limit frame (35), the lower end of the cutter (34) abuts tightly against the upper surface of the conveyor belt (40).

10. The rubber slitting machine according to claim 1, characterized in that, A dust cover (50) is provided above the tablet pressing mechanism (10), and a feed window (51) is provided on the side wall of the dust cover (50) away from the conveyor belt (40).

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