Rubber cutting device

Abstract

The utility model provides a rubber cutting device. The rubber cutting device comprises a plurality of rows of rollers, the cutter push plate mechanism is connected and installed below the multiple rows of rollers, the multiple rows of rollers and the cutter push plate mechanism integrally form a conveying channel for conveying sizing materials to the downstream, the cutter push plate mechanism comprises a top plate shaft 62, a top plate and an elastic reset piece, the top plate shaft 62 is connected below the multiple rows of rollers side by side, and the top plate shaft 62 is connected below the multiple rows of rollers side by side. The top plate is movably connected to a top plate shaft 62, the top plate is provided with an inclined feeding face, the top plate swings up and down through power of an elastic reset piece so as to push the sizing material to leave, and a gap between the fixed cutter and the first cutting cutter and a gap between the fixed cutter and the second cutting cutter form a discharging port.

Description

Technical Field

[0001] The utility model belongs to the field of tire production, and particularly relates to a rubber cutting device. Background Art

[0002] The sulfur masterbatch line is composed of an X(S)N-75 / 3.2-32 kneader, an XJSZ1015 twin-screw extrusion press, an XP600 film cooling device, a TSJ-75 type elevator, and an XPC-600 fixed-length cutting machine. The formula of the produced sulfur masterbatch consists of rubber material, sulfur powder, small materials, etc. The proportion of the rubber material determines the softness, hardness, viscosity and other properties of the masterbatch of this formula to a certain extent. The existing fixed-length cutting machine includes a row of rollers, a rotary cutter, a fixed cutter, a motor, a fixed-length detection and a control mechanism. The fixed cutter is installed on the front side of the row of rollers to position and support the rubber material to form a stable cutting surface. The rubber material enters the gap between the rotary cutter and the fixed cutter through the inclined surface of the row of rollers for cutting. When the softer rubber material is cut through the gap between the rotary cutter and the fixed cutter, the phenomenon of rubber material blocking is less; when the harder rubber material is cut through the gap between the rotary cutter and the fixed cutter, the cut rubber material is extremely easy to block on the fixed cutter, and the rubber material squeezes into the gap between the row of rollers and the fixed cutter, causing the fixed cutter and the row of rollers to be blocked and jammed, and the cutting fails. It is necessary to manually handle the jammed rubber phenomenon, as well as the abnormal cutter, the current is too large, the motor is easily damaged, and the cutter is easily stuck and broken. Summary of the Utility Model

[0003] The utility model relates to a rubber cutting device, which includes:

[0004] Multiple rows of rollers arranged obliquely downward from top to bottom;

[0005] A cutter push plate mechanism, which is connected and installed below the multiple rows of rollers. The multiple rows of rollers and the cutter push plate mechanism together form a conveying channel for the rubber material to be conveyed downstream. The cutter push plate mechanism includes a top plate shaft 62, a top plate and an elastic resetting member. The top plate shaft 62 is connected side by side below the multiple rows of rollers. The top plate is movably connected to the top plate shaft 62. The top plate has an inclined feeding surface. The top plate swings up and down under the power of the elastic resetting member to push the rubber material away;

[0006] A rotary cutter, which includes a rotary frame and a first cutting knife and a second cutting knife connected to opposite sides of the rotary frame. The rotary frame rotates, and the first cutting knife and the second cutting knife alternately squeeze the rubber material to complete cutting;

[0007] A fixed cutter, which is connected and arranged downstream of the top plate. The gap between the fixed cutter and the first cutting knife and the second cutting knife constitutes a discharge port.

[0008] In some embodiments, the inclination angle of the top plate is the same as that of the multiple rows of rollers.

[0009] In some embodiments, the inclination angles of the top plate and the multi-row rollers are both 15°.

[0010] In some embodiments, the multi-row rollers are installed on the left frame and the right frame, and the left and right sides of the top plate shaft are also installed on the left frame and the right frame.

[0011] In some embodiments, the elastic reset member includes multiple groups of spring members. A connecting frame parallel to the top plate shaft is connected between the left frame and the right frame. The connecting frame has multiple connecting rods facing the top plate, and spring members are arranged between the connecting rods and the top plate.

[0012] In some embodiments, a pressing plate is arranged above the rear side of the top plate.

[0013] In some embodiments, the rubber cutting device further includes a compensation plate. The compensation plate is installed above the fixed knife and within the gap between the fixed knife and the multi-row rollers. The front end of the compensation plate is flush with the fixed knife surface or located behind the fixed knife surface in the front-rear direction.

[0014] In some embodiments, the front end of the compensation plate forms an inclined surface that slopes downward from back to front, and this inclined surface constitutes a guiding inclined surface. The angle of the inclined surface is configured to allow the alternating cutting of the rotary cutter.

[0015] In some embodiments, the multi-row rollers form an inclined conveying surface that slopes downward from back to front. The guiding inclined surface is connected below the inclined conveying surface and they are in the same plane.

[0016] In some embodiments, the compensation plate and the fixed knife are integrally formed.

[0017] The rubber cutting device provided by the present utility model replaces several rollers below the original multi-row rollers with a cutter push plate mechanism. When the rubber material falls through the original rollers for cutting, the rubber material has a squeezing force on the top plate. After the rubber material is cut, the top plate uses the squeezing reaction force to eject the rubber material, thus avoiding the rubber material from blocking on the fixed knife and getting stuck in the gap, and smoothly falling for continuous cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0019] Figure 1 is a schematic structural diagram of the rubber cutting device provided by the present utility model;

[0020] Figure 2 is Figure 1 a partial enlarged view of;

[0021] 10 - Gluing conveyor belt, 20 - Multi - row rollers, 30 - Rotary cutter, 40 - Fixed cutter, 100 - Rubber compound, 50 - Compensation plate, 60 - Cutter push - plate mechanism, 70 - Rubber - cutting conveyor belt, 31 - First cutting knife, 32 - Second cutting knife, 61 - Top plate, 62 - Top - plate shaft, 63 - Spring, 64 - Pressure plate, 65 - Connecting rod. Detailed implementation manners

[0022] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Embodiment 1

[0026] An embodiment of the present invention provides a rubber - cutting device, which includes a gluing conveyor belt 10, multi - row rollers 20 arranged obliquely downward from top to bottom, a cutter push - plate mechanism 60, a rotary cutter 30 and a fixed cutter 40. The cutter push - plate mechanism 60 is connected and installed below the multi - row rollers 20. The multi - row rollers 20 and the cutter push - plate mechanism 60 together form a conveying channel for conveying the rubber compound 100 downstream. In actual production, the inventor of the present invention removed several rollers, for example, 3 rollers, below the multi - row rollers 20 and installed the cutter push - plate mechanism 60 at the removal position. In this way, on the one hand, the cutter push - plate mechanism 60 still has the function of conveying the rubber compound 100, and on the other hand, the cutter push - plate mechanism 60 has the effect of separating the rubber compound 100 from the fixed cutter 40.

[0027] It can be understood that, as described above, the cutter push plate mechanism 60 provided by the present utility model replaces the lower roller of the original multi-row roller 20, and the position of the fixed knife 40 remains unchanged. Thus, the fixed knife 40 is downstream of the cutter push plate mechanism 60, and the rotary cutter 30 cooperates with the fixed knife 40 to complete the cutting of the rubber material 100 through rotary extrusion. Specifically, the rotary cutter 30 includes a rotary frame and a first cutting knife 31 and a second cutting knife 32 connected to opposite sides of the rotary frame. The motor drives the rotary frame to rotate, and the first cutting knife 31 and the second cutting knife 32 alternately extrude the rubber material 100 to complete the cutting; the fixed knife 40 is connected downstream of the top plate 61, and the gap between the fixed knife 40 and the first cutting knife 31 and the second cutting structure forms a discharge port. Thus, the cut rubber material 100 falls through the discharge port onto the downstream production line, such as a conveyor belt.

[0028] In an embodiment of the present utility model, the cutter push plate mechanism 60 includes a top plate shaft 62, a top plate 61, and an elastic reset member 63. The top plate shaft 62 is connected in parallel below the multi-row roller 20, the top plate 61 is movably connected to the top plate shaft 62, the top plate 61 has an inclined feeding surface, the elastic reset member is always in a tense state, and the top plate 61 swings up and down by the power of the elastic reset member to push the rubber material 100 away. Specifically, the top plate shaft 62 serves as the moving axis of the top plate 61. After the rubber material 100 enters the top plate 61 and the fixed knife 40 from the multi-row roller 20, the top plate 61 and the fixed knife 40 support the rubber material 100. When the first cutting knife 31 and the second cutting knife 32 rotate and cut, they extrude the rubber material 100, generating a downward extrusion force on the top plate 61 and the fixed knife 40. At this time, the top plate 61 swings downward, and the spring is in a tense state. When the cutting is completed and the cutting knife leaves the rubber material 100 and the extrusion force is small, the spring drives the top plate 61 to swing upward and reset. At this time, the top plate 61 pushes the rubber material 100 to bounce upward slightly, that is, it promotes the rubber material 100 to leave the fixed knife 40, avoiding the adhesion of the fixed knife 40 to the rubber material 100, thus avoiding the rubber material 100 from jamming on the fixed knife 40 and getting stuck in the gap, and smoothly falling for continuous cutting.

[0029] In some embodiments of the present utility model, the inclination angle of the top plate 61 is the same as that of the multi-row roller 20. Exemplarily, the inclination angles of the top plate 61 and the multi-row roller 20 are both 15°. Thus, the conveying channel formed by the top plate 61 and the multi-row roller 20 is on the same horizontal plane, which is more conducive to the downward sliding of the rubber material 100 and further reduces the risk of the rubber material 100 getting stuck in the gap.

[0030] In this embodiment, the multi-row rollers 20 are installed on the left frame and the right frame, and both the left and right sides of the top plate shaft 62 are also installed on the left frame and the right frame. Specifically, the left frame and the right frame are arranged opposite to each other left and right. The left and right sides of the multi-row rollers 20 are connected to the left frame and the right frame. The structural design here belongs to the prior art and will not be elaborated here. The innovation of the present utility model lies in that by means of the design of the left frame and the right frame, the top plate shaft 62 is connected to the left frame and the right frame according to the trend of the multi-row rollers 20. First, it is more conducive to the smooth connection between the top plate 61 and the multi-row rollers 20. Second, the top plate shaft 62 does not rely on other fixing mechanisms additionally, and the production line structure is simple.

[0031] Further, in this embodiment, the elastic resetting member includes multiple groups of spring members. A connecting frame parallel to the top plate shaft 62 is connected between the left frame and the right frame. The connecting frame has multiple connecting rods 65 facing the top plate 61. Spring members are arranged between the connecting rods 65 and the top plate 61. The connecting rods 65 facilitate the sleeving of the spring members, and the springs between the connecting rods 65 and the top plate 61 provide a resetting force for the movement of the top plate 61.

[0032] In addition, in order to further improve the elastic force of the top plate 61 for bouncing the rubber material 100, a pressing plate 64 is arranged above the rear side of the top plate 61. In this way, the design of the pressing plate is more conducive to the bouncing of the rubber material 100. When the rubber material 100 falls through the original row of rollers for cutting, there is a squeezing force on the top plate 61. After the rubber material 100 is cut off, the pressing plate uses the squeezing reaction force to eject the rubber material 100, thus avoiding the rubber material 100 from blocking on the fixed knife 40 and getting stuck in the gap, and smoothly falling for continuous cutting. During installation, the spring needs to be pre-tightened so that the pressing plate presents an angle of 15° with the original row of rollers. When the rubber material 100 falls for cutting, there is a squeezing force on the pressing plate. After the rubber material 100 is cut off, the pressing plate uses the squeezing reaction force to eject the rubber material 100, thus avoiding the rubber material 100 from blocking on the fixed knife 40 and getting stuck in the gap, and smoothly falling for continuous cutting.

[0033] The present utility model replaces the row of rollers with the top plate 61 to reduce the risk of the rubber material 100 getting stuck in the row of rollers; uses the spring mechanism to prevent the rubber material 100 from sticking or being blocked hard on the fixed knife 40; and uses the self-resetting function of the spring to extend the service life.

[0034] Embodiment 2

[0035] This embodiment further improves Embodiment 1 on the basis of the previous embodiment. On the basis of the aforementioned cutting mechanism, the fixed-length cutting mechanism further includes a compensation plate 50. The compensation plate 50 is installed in the gap between the fixed knife 40 and the multi-row rollers 20 above the fixed knife 40. The front end of the compensation plate 50 is flush with the surface of the fixed knife 40 or located at the rear side of the surface of the fixed knife 40 in the front-rear direction. 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, facilitating the downward transportation of the rubber material 100, solving the problem that the rubber material 100 stays on the fixed knife 40 after cutting, solving the problem of unsmooth connection between the fixed knife 40 and the row of rollers, and the compensation plate 50 plays a role in reducing the gap between the fixed knife 40 and the row of rollers. Specifically, the compensation plate 50 here has the technical effects of promoting the rapid downward sliding of the rubber material 100 and eliminating the gap for the rubber material 100 to enter between the multi-row rollers 20 and the fixed knife 40.

[0036] In some preferred embodiments of the present 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 surface that slopes downward from back to front, and this inclined surface forms a guiding inclined surface 51. In this way, the guiding inclined surface 51 and the multi-row rollers 20 that slope downward cooperate more favorably for the rubber material 100 to quickly leave the surface of the fixed knife 40 and the guiding inclined surface 51 of the compensation plate 50, avoiding the adhesion of the rubber material 100. It can be understood that the rotation of the rotary cutting knife requires a cutting space. While reducing the gap, it is necessary to ensure the cutting of the cutting knife. The angle of the inclined surface is configured to allow the alternating cutting of the rotary cutting knife 30. For example, the angle of the cutting inclined surface is 45°. Exemplarily, the multi-row rollers 20 form an inclined conveying surface that slopes downward from back to front, and the guiding inclined surface 51 is connected below the inclined conveying surface, and the two are in the same plane. In this way, the guiding of the rubber material 100 is smoother.

[0037] In some embodiments of the present utility model, the compensation plate 50 is made of nylon material.

[0038] In some other embodiments of the present utility model, the compensation plate 50 is made of a hard material. At this time, we connect the compensation plate 50 and the fixed knife 40 through fixing parts, namely screws. 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 cutting of the rubber material 100 is a process in which the rotary cutting knife 30 and the fixed knife 40 squeeze to cut the rubber material 100. At this time, the extrusion force is relatively large, and it is easy to squeeze the rubber material 100 into the gap between the fixed knife 40 and the compensation plate 50. When the gap between the fixed knife 40 and the compensation plate 50 becomes larger, the compensation plate 50 fails. Based on this, in a further preferred solution of the present utility model, the compensation plate 50 and the fixed knife 40 are integrally formed, solving the technical problem that the rubber material 100 is easily squeezed into the gap between the fixed knife 40 and the compensation plate 50.

[0039] In this embodiment, the rubber cutting conveyor belt 70 is located below the rotary cutter 30.

[0040] In the present utility model, a compensation plate 50 is added to the fixed cutter 40. When the rubber material 100 is cut, the rubber material 100 will not be blocked on the fixed cutter 40 and can fall naturally, so that the rubber material 100 can be continuously cut.

[0041] 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", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do 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.

[0042] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A rubber cutting device, characterized in that: The rubber cutting device comprises: a plurality of rows of rollers arranged to be tilted downward from top to bottom; a cutter push plate mechanism, which is connected and installed below the plurality of rows of rollers, the plurality of rows of rollers and the cutter push plate mechanism as a whole constitute a conveying channel for conveying the rubber material to the downstream, the cutter push plate mechanism comprises a top plate shaft, a top plate and an elastic reset member, the top plate shaft is connected side by side below the plurality of rows of rollers, the top plate is movably connected to the top plate shaft, the top plate has an inclined feeding surface, the top plate swings up and down by the power of the elastic reset member to push the rubber material away; a rotating cutter, the rotating cutter comprises a rotating frame and a first cutting knife and a second cutting knife connected to opposite sides of the rotating frame, the rotating frame rotates, the first cutting knife and the second cutting knife alternately squeeze the rubber material to complete the cutting; a fixed knife, the fixed knife is connected and arranged downstream of the top plate, and the gap between the fixed knife and the first cutting knife and the second cutting knife constitutes a discharge port.

2. The rubber cutting device according to claim 1, characterized in that: The top plate has the same inclination angle as the multiple rows of rollers.

3. The rubber cutting device according to claim 1, characterized in that: The inclination angles of the top plate and the multiple rows of rollers are both 15°.

4. The rubber cutting device according to claim 1, characterized in that: The multiple rows of rollers are installed on the left frame and the right frame, and the left and right sides of the top plate shaft are also installed on the left frame and the right frame.

5. The rubber cutting device according to claim 4, characterized in that: The elastic reset member includes multiple groups of spring members. A connecting frame arranged parallel to the top plate axis is connected between the left frame and the right frame. The connecting frame has multiple connecting rods arranged toward the top plate. Spring members are arranged between the connecting rods and the top plate.

6. The rubber cutting device according to claim 1, characterized in that: A pressing plate is arranged above the rear side of the top plate.

7. The rubber cutting device according to claim 1, characterized in that: The rubber cutting device also includes a compensation plate, which is installed above the fixed knife and located in the gap between the fixed knife and the multiple rows of rollers. The front end of the compensation plate is flush with the fixed knife surface in the front-to-back direction or is located on the rear side of the fixed knife surface.

8. The rubber cutting device according to claim 7, 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.

9. The rubber cutting device according to claim 8, 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.

10. The rubber cutting device according to claim 7, characterized in that: The compensation plate and the fixed knife are integrally formed.

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