A fixed knife cutting mechanism

Abstract

The utility model belongs to a fixed-length cutting mechanism, which includes a gluing conveyor belt, which is used to convey the rubber material to the downstream through the gluing conveyor belt; multiple rows of rollers are connected to the downstream of the gluing conveyor belt, and the multiple rows of rollers are used to convey the rubber material to the downstream cutting mechanism; a compensation plate is installed above the fixed knife and is located in the gap between the fixed knife and the multiple rows of rollers, and the front end of the compensation plate is flush with the fixed knife surface in the front-to-back direction or is located at the rear side of the fixed knife surface. The utility model adds a compensation plate on the fixed knife, and when the rubber material is cut, the rubber material will not be blocked on the fixed knife, and can fall naturally, so that the rubber material can be cut continuously.

Description

Technical Field

[0001] The utility model relates to rubber material cutting, in particular to rubber material fixed-length cutting. Background Art

[0002] The sulfur masterbatch line is composed of X(S)N-75 / 3.2-32 kneading machine, XJSZ1015 twin-screw extruder, XP600 film cooling device, TSJ-75 elevator, and XPC-600 fixed-length cutting machine. The formula of the sulfur masterbatch produced is composed of rubber, sulfur powder, small materials, etc., among which the specific gravity of the rubber determines the softness, hardness, viscosity and other properties of the formula masterbatch to a certain extent. The existing fixed-length cutting machine includes a row of rollers, a rotary cutter, a fixed knife, a motor, a fixed-length detection and a control mechanism, among which the fixed knife is installed on the front side of the row of rollers to position and support the rubber to form a stable cutting surface. The rubber enters the gap between the rotary cutter and the fixed knife with the help of the inclined surface of the row of rollers to obtain cutting. When softer rubber is cut through the gap between the rotary cutter and the fixed knife, there is less rubber blockage; when harder rubber is cut through the gap between the rotary cutter and the fixed knife, the cut rubber is very likely to be blocked on the fixed knife, and the rubber squeezes into the gap between the row roller and the fixed knife, causing rubber blockage between the fixed knife and the row roller, and cutting failure. Manual handling of the rubber blockage is required, and the cutter is abnormal, the current is too large, the motor is easily damaged, and the cutter is easily broken. Utility Model Content

[0003] The utility model belongs to a fixed-length cutting mechanism, which comprises

[0004] A gluing conveyor belt, which is used to convey the rubber material to the downstream through the gluing conveyor belt;

[0005] Multiple rows of rollers connected to the downstream of the gluing conveyor belt, the multiple rows of rollers are used to convey the rubber to the downstream cutting mechanism;

[0006] A cutting mechanism, comprising a rotary cutter, a fixed cutter and a motor, wherein the motor is used to drive the rotary cutter to rotate, wherein the rotary cutter comprises a rotating block and a first cutting cutter and a second cutting cutter connected to opposite sides of the rotating block, wherein the fixed cutter is connected and installed below the multiple rows of rollers, wherein a gap is provided between the fixed cutter and the front end of the multiple rows of rollers, wherein the fixed cutter has a fixed cutter surface, wherein the gaps between the first cutting cutter and the second cutting cutter and the fixed cutter surface constitute a cutting opening, wherein the first cutting cutter and the second cutting cutter alternately cut the rubber material by rotating the rotating block;

[0007] A compensation plate is installed above the fixed knife and located in the gap between the fixed knife and the multiple rows of rollers, wherein the front end of the compensation plate is flush with the fixed knife surface in the front-to-back direction or is located at the rear side of the fixed knife surface;

[0008] The rubber cutting conveyor belt is located below the rotary cutter to receive the cut rubber material.

[0009] In some embodiments, the front end of the compensation plate forms a slope that slopes downward from the back to the front, and the slope forms a guiding slope. The angle of the slope is configured to allow alternating cutting by the rotary cutter.

[0010] In some embodiments, the compensation plate is made of nylon.

[0011] In some embodiments, the compensation plate is made of a hard material.

[0012] In some embodiments, the multiple rows of rollers are inclined downward from rear to front to form an inclined conveying surface, and the guide slope is connected to the lower side of the inclined conveying surface, and the two are in the same plane.

[0013] In some embodiments, the compensation plate and the fixed blade are integrally formed.

[0014] In some embodiments, the rubber cutting conveyor belt is located below the rotary cutter.

[0015] The utility model adds a compensation plate on the fixed knife, so that when the rubber material is cut, the rubber material will not be blocked on the fixed knife and can fall naturally, so that the rubber material can be cut continuously. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A side view of the fixed-length cutting mechanism provided by the present invention;

[0018] Figure 2 for Figure 1 A partial enlarged view of

[0019] Among them, 10-glue conveyor belt; 20-multiple rows of rollers, 30-rotating cutter, 40-fixed knife, 50-compensation plate, 31-first cutting knife, 32-second cutting knife, 60-glue cutting conveyor belt, 51-guide slope, 100-glue material. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it is necessary to understand that the terms "front", "rear", "left", "right", etc. indicate directions or positional relationships 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, 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 a limitation on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1 and Figure 2The utility model belongs to a fixed-length cutting mechanism, which includes a gluing conveyor belt 10, multiple rows of rollers 20, and a cutting mechanism. The gluing conveyor belt 10 is used to convey the rubber material 100 to the downstream through the gluing conveyor belt 10; the multiple rows of rollers 20 are connected to the downstream of the gluing conveyor belt 10, and the multiple rows of rollers 20 are used to convey the rubber material 100 to the downstream cutting mechanism; the cutting mechanism includes a rotary cutter 30, a fixed knife 40 and a motor, and the motor is used to drive the rotary cutter 30 to rotate, and the rotary cutter 30 includes a rotating block and a fixed knife 40 connected to the rotating block. The first cutting knife 31 and the second cutting knife 32 on opposite sides of the moving block and the fixed knife 40 are connected and installed below the multi-row roller 20. There is a gap between the fixed knife 40 and the front end of the multi-row roller 20. The fixed knife 40 has a fixed knife 40 surface. The gaps between the first cutting knife 31 and the second cutting knife 32 and the fixed knife 40 surface constitute a cutting opening. By rotating the rotating block, the first cutting knife 31 and the second cutting knife 32 alternately cut the rubber material 100. The rubber cutting conveyor belt 61 is located below the rotating cutting knife 30 to receive the cut rubber material 100. Specifically, the rubber conveyor belt 10 conveys the rubber material 100 to the cutting mechanism. The first cutting knife and the second cutting knife 32 alternately cut the rubber material 100 supported on the surface of the fixed knife 40 by rotating. The gap between the cutting knife and the fixed knife 40 allows the cut rubber material 100 to flow downstream. In this process, the rubber material 100 needs to be detected and cut at a fixed length. Since the fixed knife 40 is connected and installed downstream of the multi-row rollers 20, there is a gap between the multi-row rollers 20 and the fixed knife 40, and there is also a gap between the surface of the fixed knife 40 and the first cutting knife 31 and the second cutting knife 32. During cutting, the surface of the fixed knife 40 is in direct contact with the rubber material 100 and needs to withstand the squeezing force of the first cutting knife 31 and the cutting knife. The cutting process of the first cutting knife 31 and the second cutting knife 32 can easily cause the rubber material 100 to be blocked on the surface of the fixed knife 40, and the rubber material 100 squeezes into the gap between the row rollers and the fixed knife 40, the gap between the row rollers, and the gap between the fixed knife 40 and the cutting knife, resulting in cutting failure, damage to multiple components, and limited service life.

[0024] Based on the above technical problems, in the embodiment of the utility model, on the basis of the above cutting mechanism, the fixed-length cutting mechanism further includes a compensation plate 50, which is installed above the fixed knife 40 and in the gap between the fixed knife 40 and the multi-row rollers 20. The front end of the compensation plate 50 is flush with the surface of the fixed knife 40 in the front-to-back direction or is located at the rear side of the surface of the fixed knife 40. In this way, the existence of the compensation plate 50 compensates for the gap between the fixed knife 40 and the multi-row rollers 20, making the conveying channel between the multi-row rollers 20 and the fixed knife 40 smoother, which is conducive to the downward transportation of the rubber material 100, solving the problem that the cut rubber material 100 stays on the fixed knife 40, solving the problem that the connection between the fixed knife 40 and the row rollers is not smooth, and solving the problem that the compensation plate 50 plays a role in reducing the gap between the fixed knife 40 and the row rollers. Specifically, the compensation plate 50 here has the technical effect of prompting the rubber material 100 to slide down quickly and eliminating the rubber material 100 from entering the gap between the multi-row rollers 20 and the fixed knife 40.

[0025] In some preferred embodiments of the utility model, in order to facilitate the downward sliding of the rubber material 100, the front end of the compensation plate 50 forms an inclined plane that tilts downward from the back to the front, and the inclined plane forms a guiding inclined plane 51. In this way, the guiding inclined plane 51 cooperates with the downwardly tilted multi-row rollers 20 to facilitate the rubber material 100 to quickly leave the fixed knife 40 surface and the guiding inclined plane 51 of the compensation plate 50, thereby avoiding the adhesion of the rubber material 100. It can be understood that the rotation of the rotary cutting knife requires cutting space, and the cutting knife is guaranteed to cut while reducing the gap. The angle of the inclined plane is configured to allow the alternating cutting of the rotary cutting knife 30, for example, the angle of the cutting inclined plane is 45°, etc. Exemplarily, the multi-row rollers 20 tilt downward from the back to the front to form an inclined conveying surface, and the guiding inclined plane 51 is connected to the bottom of the inclined conveying surface, and the two are in the same plane. In this way, the guidance of the rubber material 100 is smoother.

[0026] In some embodiments of the present invention, the compensation plate 50 is made of nylon.

[0027] In some other embodiments of the present invention, the compensation plate 50 is made of a hard material. In this case, the compensation plate 50 is connected to the fixed knife 40 by a fixing screw. Since the compensation plate 50 and the fixed knife 40 are fixed by four screws, there is a gap between the compensation plate 50 and the fixed knife 40. The rubber material 100 is cut off by squeezing the rotating cutter 30 and the fixed knife 40. At this time, the squeezing force is relatively large, and it is easy to squeeze the rubber material 100 between the fixed knife 40 and the compensation plate 50. At this time, the gap between the fixed knife 40 and the compensation plate 50 becomes larger, thereby causing the compensation plate 50 to fail. Based on this, in a further preferred embodiment of the present invention, the compensation plate 50 and the fixed knife 40 are integrally formed, which solves the technical problem that the rubber material 100 is easily squeezed in the gap between the fixed knife 40 and the compensation plate 50.

[0028] In this embodiment, the rubber cutting conveyor belt 61 is located below the rotary cutter 30 .

[0029] The utility model adds a compensation plate 50 on the fixed knife 40. When the rubber material 100 is cut, the rubber material 100 will not be blocked on the fixed knife 40 but can fall naturally, so that the rubber material 100 can be cut continuously.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fixed knife cutting mechanism, characterized in that: The fixed knife cutting mechanism comprises: A gluing conveyor belt, which is used to convey the rubber material to the downstream through the gluing conveyor belt; Multiple rows of rollers connected to the downstream of the gluing conveyor belt, the multiple rows of rollers are used to convey the rubber to the downstream cutting mechanism; A cutting mechanism, comprising a rotary cutter, a fixed cutter and a motor, wherein the motor is used to drive the rotary cutter to rotate, wherein the rotary cutter comprises a rotating block and a first cutting cutter and a second cutting cutter connected to opposite sides of the rotating block, wherein the fixed cutter is connected and installed below the multiple rows of rollers, wherein a gap is provided between the fixed cutter and the front end of the multiple rows of rollers, wherein the fixed cutter has a fixed cutter surface, wherein the gaps between the first cutting cutter and the second cutting cutter and the fixed cutter surface constitute a cutting opening, wherein the first cutting cutter and the second cutting cutter alternately cut the rubber material by rotating the rotating block; A compensation plate is installed above the fixed knife and located in the gap between the fixed knife and the multiple rows of rollers, wherein the front end of the compensation plate is flush with the fixed knife surface in the front-to-back direction or is located at the rear side of the fixed knife surface; The rubber cutting conveyor belt is located below the rotary cutter to receive the cut rubber material.

2. The fixed knife cutting mechanism according to claim 1, characterized in that: The front end of the compensation plate forms an inclined surface which is inclined downward from the back to the front, and the inclined surface forms a guiding inclined surface. The angle of the inclined surface is configured to allow the rotary cutter to cut alternately.

3. The fixed knife cutting mechanism according to claim 1, characterized in that: The compensation plate is made of nylon.

4. The fixed knife cutting mechanism according to claim 1, characterized in that: The compensation plate is made of hard material.

5. The fixed knife cutting mechanism according to claim 2, characterized in that: The multiple rows of rollers are inclined from the back to the front and downward to form an inclined conveying surface, and the guide inclined surface is connected to the lower part of the inclined conveying surface, and the two are in the same plane.

6. The fixed knife cutting mechanism according to claim 1, characterized in that: The compensation plate and the fixed knife are integrally formed.

7. The fixed knife cutting mechanism according to claim 1, characterized in that: The rubber cutting conveyor belt is located below the rotary cutter.

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