Rubber slitting cutter and rubber slitting device

Abstract

The utility model belongs to the field of rubber mixing, and particularly relates to a rubber slitting cutter and a rubber slitting device, the rubber slitting cutter comprises two cutting knives and a width adjusting mechanism for controlling the two cutting knives to be synchronously and relatively close to and far away from each other, and a rubber strip retaining area is arranged between the two cutting knives. According to the rubber slitting cutter, the two cutting knives move close to each other and away from each other, the width of a rubber strip can be controlled and reserved, when the width of the rubber strip needs to be adjusted, the width of the rubber strip can be adjusted at any time, production efficiency is improved, manual operation is reduced, the two cutting knives move relative to each other, and the production efficiency is improved. The middle of the reserved rubber strip can be always located at the same position, the middle line of the rubber strip with any width can be controlled to be always located in the middle of the device, and the rubber strip can enter the next procedure conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of rubber compounding, specifically relating to a rubber slitting tool and a rubber slitting device. Background Technology

[0002] After the rubber is mixed and comes out of the internal mixer bucket, it needs to go through an open mill slitting device to process the rubber sheet into sheets of a certain width. Depending on the different customer equipment, feeding speed, feeding quantity and other processes, different widths of rubber sheets are required.

[0003] Chinese utility model patent CN 219618239 U discloses a slitting device for an open mill, wherein the distance between the cutter and the drum can be adjusted.

[0004] However, the above structure still has some problems: the interval between the tools is fixed, or the operator needs to manually adjust it when moving the tools, which poses certain safety hazards and is inconvenient, affecting production efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a rubber slitting tool and rubber slitting device with adjustable cutting blade spacing that can easily achieve edge trimming of film.

[0006] This utility model provides a rubber slitting tool, including two cutting blades and a width adjustment mechanism for controlling the two cutting blades to move closer and further apart synchronously, with a rubber strip retention area between the two cutting blades.

[0007] Furthermore, the width adjustment mechanism includes a bidirectional threaded screw, a guide rod, and a rotary drive mechanism;

[0008] The bidirectional threaded screw is rotatably mounted on the frame, and the guide rod is mounted on the frame parallel to the bidirectional threaded screw;

[0009] The rotary drive mechanism is fixed on the frame and is used to drive the bidirectional threaded screw to rotate in both directions.

[0010] The cutting blade is provided with a threaded hole that is screwed to the bidirectional threaded screw and a sliding hole that is slidably engaged with the guide rod. One of the cutting blades' threaded holes is screwed to the forward thread area of ​​the bidirectional threaded screw, and the other cutting blade's threaded hole is screwed to the reverse thread area of ​​the bidirectional threaded screw.

[0011] Furthermore, the cutting blade is provided with a guide sleeve at the threaded hole, and the threaded hole is located inside the guide sleeve.

[0012] Furthermore, the outer wall of the sliding hole is provided with a vibration damping washer.

[0013] Furthermore, the cutting blade includes a base and a blade body;

[0014] The base is mounted on the width adjustment mechanism, and the tail end of the blade is hinged to the base;

[0015] An angle adjustment component for adjusting the angle of the blade is also provided between the base and the blade body.

[0016] Furthermore, the angle adjusting element includes a spring and an adjusting screw;

[0017] One end of the adjusting screw is screwed to the base, and the other end slides through the cutter body and is provided with a rotating head;

[0018] The spring is sleeved outside the adjusting screw, with one end abutting against the blade body and the other end abutting against the base.

[0019] Furthermore, the blade body includes a sheath and a blade that are detachably connected to each other;

[0020] The sheath is hinged to the base; the sheath is connected to the angle adjustment component.

[0021] Furthermore, the base includes a horizontal plate and a vertical plate disposed at one end of the horizontal plate. The horizontal plate is connected to the width adjustment mechanism, the vertical plate is hinged to the blade body, and the other end of the horizontal plate is used to install the angle adjustment component.

[0022] This utility model also provides a rubber slitting device, including a frame, a roller body disposed on the frame, and the aforementioned rubber slitting cutter;

[0023] The cutting blade of the rubber slitting tool is engaged with the roller body.

[0024] Furthermore, the frame includes a roller mounting side plate and a cutter mounting side plate extending outward from the lower end of the roller mounting side plate;

[0025] The roller body is rotatably mounted on the roller body mounting side plate;

[0026] The rubber slitting cutter is mounted on the cutter mounting side plate.

[0027] The beneficial effects of this utility model are that the rubber slitting cutter provided by this utility model, with the relative movement of the two cutting blades moving closer and further apart, can control the width of the retained rubber strip. Thus, when the width of the rubber strip needs to be adjusted, it can be adjusted at any time, improving production efficiency and reducing manual operation. Moreover, the relative movement of the two cutting blades can ensure that the middle of the retained rubber strip is always in the same position, and can control the centerline of the rubber strip of any width to always be in the middle of the device, making it convenient for the rubber strip to enter the next process. Attached Figure Description

[0028] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Appendix Figure 2 This is the front view of the present invention;

[0030] Appendix Figure 3 This is a schematic diagram of the cutting blade in this utility model.

[0031] In the diagram, 1-roller body; 2-lead screw; 21-forward thread area; 22-reverse thread area; 3-guide rod; 4-cutting blade; 41-base; 411-threaded hole; 412-sliding hole; 42-blade sheath; 421-adjusting screw; 422-spring; 43-blade; 44-pin; 5-rotation drive mechanism; 51-programmable controller; 6-frame; 61-roller body mounting side plate; 62-blade mounting side plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] As attached Figure 1 -Appendix Figure 3 As shown, this utility model discloses a rubber slitting tool, which includes two cutting blades 4 and a width adjustment mechanism for controlling the two cutting blades 4 to move closer and further apart synchronously. The area between the two cutting blades 4 is a rubber strip retention area.

[0038] The rubber slitting tool provided by this utility model has two cutting blades 4 that move closer and further apart, which can control the width of the retained rubber strip. This allows for adjustment of the rubber strip width whenever needed, improving production efficiency and reducing manual operation. Furthermore, the relative movement of the two cutting blades 4 ensures that the center of the retained rubber strip is always in the same position, allowing the centerline of any width of rubber strip to always be in the middle of the device, facilitating the entry of the rubber strip into the next process.

[0039] The width adjustment mechanism can be achieved by two linear drive mechanisms working together, such as a linear module, a cylinder, or a hydraulic cylinder. The two linear drive mechanisms work synchronously to control the two cutting blades 4 to move closer and further apart in sync.

[0040] In one preferred embodiment, the width adjustment mechanism includes a bidirectional threaded screw 2, a guide rod 3, and a rotary drive mechanism 5. The bidirectional threaded screw 2 has a forward thread area 21 on one side and a reverse thread area 22 on the other side, with the middle as the interval. The rotary drive mechanism 5 can be a rotary motor, a rotary cylinder, or a rotary hydraulic cylinder, preferably a stepper motor. The rotary drive mechanism 5 is connected to a programmable controller 51 to control the forward and reverse rotation, rotation speed, and rotation time of the rotary drive mechanism 5.

[0041] The bidirectional threaded screw 2 is rotatably mounted on the frame 6, and the guide rod 3 is mounted on the frame 6 parallel to the bidirectional threaded screw 2;

[0042] The rotary drive mechanism 5 is fixed on the frame 6, and the output rotation shaft of the rotary drive mechanism 5 is fixedly connected to one end of the bidirectional threaded screw 2. The rotary drive mechanism 5 is used to drive the bidirectional threaded screw 2 to rotate in both directions.

[0043] The cutting blade 4 is provided with a threaded hole 411 that is screwed to the bidirectional threaded screw 2 and a sliding hole 412 that is slidably engaged with the guide rod 3. The bidirectional threaded screw 2 is screwed to the threaded hole 411, which can drive the cutting blade 4 to move linearly when the bidirectional threaded screw 2 rotates. The sliding hole 412 and the guide rod 3 are slidably engaged to prevent the cutting blade 4 from rotating axially around the bidirectional threaded screw 2, so that the cutting blade 4 can only move linearly along the bidirectional threaded screw 2.

[0044] One of the cutting blades 4 has a threaded hole 411 that is screwed into the forward thread area 21 of the bidirectional threaded lead screw 2, and the other cutting blade 4 has a threaded hole 411 that is screwed into the reverse thread area 22 of the bidirectional threaded lead screw 2. That is, when the rotary drive mechanism 5 is driven in the forward direction, the two cutting blades 4 move away from each other or move closer together in sync.

[0045] In this embodiment, the width adjustment mechanism adopts a combination of a bidirectional threaded screw 2 and a guide rod 3. The synchronous relative approach and synchronous relative distance of the two cutting blades 4 can be achieved by a single rotary drive mechanism 5, which can reduce the number of drive mechanisms. Moreover, the cutting blades 4 are threadedly connected to the bidirectional threaded screw 2. When there is no need to adjust the position of the cutting blades 4, the threaded engagement has a self-locking characteristic of the cutting blades 4, which can prevent the cutting blades 4 from moving.

[0046] In one embodiment, the cutting blade 4 is provided with a guide sleeve at the threaded hole 411, and the threaded hole 411 is located inside the guide sleeve. By providing the guide sleeve, the length of the threaded hole 411 can be increased, thereby improving the driving and self-locking stability.

[0047] In one embodiment, the outer wall of the sliding hole 412 is provided with a vibration damping washer, which can provide a vibration damping effect for the movement of the cutting blade 4 and reduce the vibration of the cutting blade 4 during the movement.

[0048] In one embodiment, the cutting blade 4 includes a base 41 and a blade body;

[0049] The base 41 is disposed on the width adjustment mechanism. Specifically, the base 41 is provided with the aforementioned threaded hole 411 and sliding hole 412. The base 41 is connected to the width adjustment mechanism by means of the bidirectional threaded screw 2 and the guide rod 3. The tail end of the blade is hinged to the base 41.

[0050] An angle adjustment component is also provided between the base 41 and the blade body to adjust the angle of the blade body. This allows control of the blade body's rotation and angle adjustment, enabling the blade body to either fit against or separate from the roller body 1. When adjusting the distance between the two cutting blades 4, the angle adjustment component can first be used to control the blade body to move away from the roller body 1, thus preventing friction between the blade body and the roller body 1 during the adjustment of the distance between the two cutting blades 4. After the distance between the two cutting blades 4 is adjusted, the angle adjustment component can be used to control the blade body to fit against the roller body 1, thereby improving the cutting effect of the blade body on the rubber strip.

[0051] In one embodiment, the angle adjustment member includes a spring 422 and an adjustment screw 421;

[0052] One end of the adjusting screw 421 is screwed to the base 41, and the other end slides through the cutter body and is provided with a rotating head;

[0053] The spring 422 is sleeved on the adjusting screw 421, with one end abutting against the blade body and the other end abutting against the base 41. In this embodiment, when the spring 422 is engaged, the blade body is always in contact with one end of the rotating head on the adjusting screw 421, thus ensuring that the blade body is always in an open state. By rotating the adjusting screw 421 with the rotating head, the distance between the rotating head and the base 41 can be controlled, thereby adjusting the angle of the blade body. The combination of the spring 422 and the adjusting screw 421 is sufficient to adjust the angle of the blade body, allowing the blade body a certain degree of rotational freedom toward the base 41, while the adjustment process is convenient and quick, allowing for rapid and accurate adjustment to the specified angle.

[0054] In one embodiment, the blade body includes a sheath 42 and a blade 43 that are detachably connected to each other, which makes it easy to replace the blade 43.

[0055] The sheath 42 is hinged to the base 41; the sheath 42 is connected to the angle adjustment component, so that the blade 43 does not need to be connected to the base 41 and the angle adjustment component, simplifying the installation of the blade 43.

[0056] Preferably, a pin hole is provided on the base 41, and a pin 44 is detachably provided on the sheath 42. The sheath 42 and the base 41 are hinged by the cooperation of the pin 44 and the pin hole.

[0057] In one embodiment, the base 41 includes a horizontal plate and a vertical plate disposed at one end of the horizontal plate, i.e., the base 41 is L-shaped. The horizontal plate is connected to the width adjustment mechanism. Specifically, threaded holes 411 and sliding holes 412 are sequentially disposed on both sides of the horizontal plate to make reasonable use of space and ensure the structural utilization rate of the base 41. The vertical plate is hinged to the blade body, so that the hinge point of the blade body protrudes from the threaded holes 411 and sliding holes 412, so that the blade body is relatively far away from the bidirectional threaded screw 2 and guide rod 3. The other end of the horizontal plate is used to install the angle adjustment component, thereby making reasonable use of the space between the other end of the vertical plate and the horizontal plate.

[0058] This utility model also provides a rubber slitting device, including a frame 6, a roller 1 mounted on the frame 6, and the aforementioned rubber slitting cutter;

[0059] The cutting blade 4 of the rubber slitting tool is engaged with the roller body 1.

[0060] In one embodiment, the frame 6 includes a roller mounting side plate 61 and a cutter mounting side plate 62 extending outward from the lower end of the roller mounting side plate 61.

[0061] The roller body 1 is rotatably mounted on the roller body mounting side plate 61;

[0062] The rubber slitting cutter is mounted on the cutter mounting side plate 62.

[0063] In this embodiment, the rubber slitting cutter is located at the front and lower part of the roller body 1, which can avoid the rubber slitting cutter occupying the rubber strip conveying space and will not affect the conveying of the rubber strip.

[0064] The above description is merely an embodiment and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations, modifications, or alterations to the technical solution of this utility model without departing from its scope. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model, without departing from its scope, should fall within the protection scope of this utility model.

Claims

1. A rubber slitter knife characterized by, The width adjusting mechanism controls the two cutting knives (4) to approach and move away from each other synchronously. The width adjusting mechanism is composed of two linear driving mechanisms which work synchronously to control the two cutting knives (4) to approach and move away from each other synchronously. Alternatively, the width adjusting mechanism comprises a bidirectional screw rod (2), a guide rod (3) and a rotary driving mechanism (5); the bidirectional screw rod (2) is rotatably arranged on a rack (6); the guide rod (3) is arranged on the rack (6) in parallel with the bidirectional screw rod (2); the rotary driving mechanism (5) is fixed on the rack (6) and is used to drive the bidirectional screw rod (2) to rotate in opposite directions; the cutting knife (4) is provided with a threaded hole (411) which is screwed with the bidirectional screw rod (2) and a sliding hole (412) which is in sliding cooperation with the guide rod (3); the threaded hole (411) of one cutting knife (4) is screwed with a forward threaded area (21) of the bidirectional screw rod (2) and the threaded hole (411) of the other cutting knife (4) is screwed with a reverse threaded area (22) of the bidirectional screw rod (2).

2. The rubber slitter knife of claim 1 wherein, The cutting knife (4) is provided with a guide sleeve at the position of the threaded hole (411) and the threaded hole (411) is arranged in the guide sleeve.

3. The rubber slitter knife of claim 1 wherein, The outer wall of the sliding hole (412) is provided with a damping washer.

4. A rubber slitter knife as claimed in any one of claims 1 to 3, characterised in that, The cutting knife (4) comprises a base (41) and a blade body; The base (41) is arranged on the width adjusting mechanism and the tail end of the blade body is hingedly arranged on the base (41); An angle adjusting member is further arranged between the base (41) and the blade body to adjust the angle of the blade body.

5. The rubber slitter knife of claim 4 wherein, The angle adjusting member comprises a spring (422) and an adjusting screw rod (421); One end of the adjusting screw rod (421) is screwed with the base (41) and the other end is slid through the blade body and is provided with a rotary head; The spring (422) is sleeved on the adjusting screw rod (421) and one end of the spring (422) abuts against the blade body and the other end of the spring (422) abuts against the base (41).

6. The rubber slitter knife of claim 4 wherein, The blade body comprises a sheath (42) and a blade (43) which are detachably connected with each other; The sheath (42) is hingedly connected with the base (41) and the sheath (42) is connected with the angle adjusting member.

7. The rubber slitter knife of claim 4 wherein, The base (41) comprises a horizontal plate and a vertical plate which is arranged at one end of the horizontal plate; the horizontal plate is connected with the width adjusting mechanism and the vertical plate is hingedly connected with the blade body; the other end of the horizontal plate is used to mount the angle adjusting member.

8. A rubber slitting apparatus characterized by, The rubber strip cutting tool comprises a rack (6), a roller body (1) arranged on the rack (6) and the rubber strip cutting tool according to any one of claims 1-7. The cutting knife (4) of the rubber strip cutting tool is matched with the roller body (1).

9. The rubber slitting apparatus of claim 8 wherein, The rack (6) comprises a roller body mounting side plate (61) and a tool mounting side plate (62) which extends outward from the lower end of the roller body mounting side plate (61). The roller body (1) is rotatably arranged on the roller body mounting side plate (61). The rubber strip cutting tool is arranged on the tool mounting side plate (62).

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