Fixed-length cutting device for extruded rubber

Abstract

The utility model discloses an extruded rubber fixed-length cutting device which comprises a conveying mechanism, a cutting mechanism, a guide mechanism and a positioning mechanism, the guide mechanism is provided with a feeding guide groove and a discharging guide groove, the cutting mechanism is located in the middle of the guide mechanism, and the positioning mechanism is provided with an inductive switch used for controlling the conveying mechanism and the cutting device to start and stop. The width of the feeding guide groove and the width of the discharging guide groove can be flexibly adjusted according to the width specification of extruded rubber, the problem that the rubber is prone to deviation in the cutting process is solved, and the cutting accuracy and the yield are improved; the position of the positioning mechanism is flexibly adjusted according to the required length specification of rubber to realize specified-length cutting; in addition, through the structure that a plurality of feeding guide port grooves and a plurality of discharging guide grooves are combined side by side, synchronous cutting of a plurality of strips of extruded rubber is achieved, cutting efficiency is improved, and due to the fact that an air cooling mechanism is arranged, cutting stability and smoothness are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber cutting devices, and particularly relates to an extrusion rubber fixed-length cutting device. Background Art

[0002] The fire stop collar for plastic pipes in construction is composed of a metal outer ring and a flame-retardant expansion core material. The flame-retardant expansion core material is mostly formed by extrusion of an expandable fire-retardant rubber material. The flame-retardant expansion core material inside the metal outer ring is formed by surrounding with strip-shaped flame-retardant rubber. According to the size of the diameter of the fire stop collar, fire-retardant rubber strips of different length specifications are required. Therefore, a fixed-length cutting mechanism is used in the process of processing and extruding rubber.

[0003] At present, some rubber fixed-length cutting mechanisms have also appeared on the market. Although such devices can realize the automatic cutting function of rubber and improve the cutting efficiency, such devices lack lateral limitation for rubber, and the rubber is prone to deviation during the conveying process, which in turn affects the cutting accuracy, resulting in an increase in the defective rate and poor practicability, and cannot well meet the use requirements. In addition, the existing rubber cutting mechanism can only realize the cutting of a single rubber strip each time, with relatively low processing efficiency, and the width of the cut rubber cannot be adjusted, making it difficult to meet the cutting requirements of rubber with different width specifications. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an extrusion rubber fixed-length cutting device, which can simultaneously realize the fixed-length precise cutting of multiple extruded rubbers, so as to solve the problems in the prior art that the rubber cutting mechanism lacks lateral limitation, the rubber is prone to deviation, the cutting accuracy is not high, and the processing efficiency is low.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] An extrusion rubber fixed-length cutting device of the utility model includes a conveying mechanism, a cutting mechanism, a guiding mechanism, and a positioning mechanism. The cutting mechanism is located in the middle of the guiding mechanism. The guiding mechanism is provided with a feeding guiding groove and a discharging guiding groove. The positioning mechanism is movably arranged on the output end of the conveying mechanism, and an induction switch for controlling the start and stop of the conveying mechanism and the cutting mechanism is arranged on the positioning mechanism.

[0007] As a preferred technical solution of the utility model, the cutting mechanism includes a detachable cutter, a cutting cylinder connected to the top of the cutter for controlling the up and down reciprocating movement of the cutter, and a cutter backing plate arranged below the cutter and perpendicular to the cutting edge of the cutter.

[0008] As a preferred technical solution of the utility model, the guiding mechanism includes a feeding guiding groove and a discharging guiding groove whose lateral width can be set according to the width of the extruded rubber.

[0009] As a preferred technical solution of the present utility model, both the conveying mechanism and the cutting mechanism are electrically connected to the induction switch.

[0010] As a preferred technical solution of the present utility model, an air-cooling mechanism for cooling the cutting mechanism is provided below the conveying mechanism.

[0011] As a preferred technical solution of the present utility model, a scale is provided at the output end of the conveying mechanism for positioning the movement and positioning of the positioning mechanism.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the lateral limit of the guiding mechanism, the widths of the feeding guiding groove and the discharging guiding groove are adjusted, preventing the rubber from running off during cutting, improving the cutting accuracy, and increasing the product qualification rate;

[0014] 2. The position of the positioning mechanism can be set according to the length requirement of the extruded rubber, flexibly controlling the cutting length of the rubber to obtain rubbers of different length specifications;

[0015] 3. The guiding mechanism has multiple feeding guiding grooves and discharging guiding grooves arranged in parallel and with adjustable widths, enabling synchronous cutting of multiple extruded rubbers at the same time;

[0016] 4. An air-cooling mechanism for cooling the cutting mechanism is provided, preventing the sticking tool effect during high-frequency cutting, and improving the stability and flatness of the cut rubber. Description of the Drawings

[0017] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the front view of the present utility model;

[0020] Figure 3 is the top view of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the feeding guiding groove of the present utility model;

[0022] Figure 5 is the structural schematic diagram of the cutting position of the present utility model;

[0023] In the figure: 1. conveying mechanism; 2. cutting mechanism; 3. guiding mechanism; 4. positioning mechanism; 5. induction switch; 6. cutter; 7. cutting cylinder; 8. cutter pad; 9. feed guide groove; 10. discharge guide groove; 11. air cooling mechanism. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0025] In the drawings, the same reference numerals all refer to the same components.

[0026] like Figures 1-5 As shown, the utility model provides an extruded rubber fixed-length cutting device, including a conveying mechanism 1, a cutting mechanism 2, a guiding mechanism 3, and a positioning mechanism 4. The conveying mechanism 1 uses a conveyor belt to control the movement of the extruded rubber. The cutting mechanism 2 drives the cutter 6 to reciprocate up and down by controlling the up and down reciprocating movement of the cutting cylinder 7 to realize continuous cutting of the rubber. When the end of the extruded rubber passes through the positioning mechanism 4, the positioning mechanism 4 sends an electrical signal to control the start and stop function of the conveying mechanism 1. The extruded rubber is laterally limited by the guiding mechanism 3, and the width of the extruded rubber feed guide groove 9 and the discharge guide groove 10 can be adjusted to prevent the rubber from running off during cutting. The position of the positioning mechanism 4 on the conveying mechanism 1 is set according to the length requirement of the rubber strip, and the rubber cutting length can be flexibly controlled. In addition, the guiding mechanism 3 is provided with a plurality of parallel feed guide grooves 9 and discharge guide grooves 10, which can realize the synchronous cutting of multiple extruded rubbers at the same time. In addition, an air cooling mechanism 11 for rapid cooling is provided below the cutting mechanism 2.

[0027] The usage of the utility model is as follows:

[0028] like Figures 1-5As shown in the figure, the conveying mechanism 1 controls the movement of the extruded rubber on the conveyor belt. The cutting mechanism 2 is located in the middle of the guiding mechanism 3. The positioning mechanism 4 is movably arranged at the output end of the conveying mechanism 1. An induction switch 5 for controlling the start and stop of the conveying mechanism 1 and the cutting mechanism 2 is provided on the positioning mechanism 4. The specific process is as follows: The extruded rubber, under the traction of the conveyor belt, enters the cutting mechanism 2 from the feeding guiding groove 9 of the guiding mechanism 3, and then continues to move forward under the traction of the conveyor belt, reaches the discharging end of the conveying mechanism 1 through the discharging guiding groove 10, and continues to move forward at the discharging end of the conveying mechanism 1. A positioning mechanism 4 that can be movably arranged is provided at the discharging end of the conveying mechanism 1. An induction switch 5 is set on the positioning mechanism 4. When the front end of the extruded rubber passes through the induction switch 5, the induction switch 5 sends an electrical signal to the cutting cylinder 7 on the conveying mechanism 1 and the cutting mechanism 2. When the conveying mechanism 1 receives the electrical signal sent by the induction switch 5, it will stop the movement of the conveyor belt. At the same time, when the cutting cylinder 7 receives the electrical signal, it starts to move vertically downward. Driven by the cutting cylinder 7, the cutter 6 also moves vertically downward. When the blade of the cutter 6 contacts the cutter backing plate 8 directly below, the extruded rubber will be cut off. After the cutter 6 completes the cutting action, the cutting cylinder 7 will start to move upward. Driven by the cutting cylinder 7, the cutter 6 also starts to move vertically upward. When the cutting cylinder 7 returns to its original position, the cutting cylinder 7 sends the electrical signal of the cutting completion to the conveying mechanism 1. After receiving the electrical signal, the conveying mechanism 1 starts to drive the conveyor belt to continue moving forward. Under the traction of the conveyor belt, the cut extruded rubber is conveyed along the conveyor belt to the next working station;

[0029] Furthermore, the next section of the extruded rubber to be cut moves forward on the conveying mechanism 1 along with the continuous movement of the conveyor belt. When the front end of the next section of the extruded rubber reaches the positioning mechanism 4, the induction switch 5 sends an electrical signal to the conveying mechanism 1 and the cutting mechanism 2, and the next cutting cycle starts. Thus, the continuous cutting operation of the extruded rubber is realized;

[0030] Furthermore, as Figure 1 , Figure 5 shown, a detachable cutter 6 is provided on the cutting mechanism 2. A cutter backing plate 8 is provided below the cutter 6 and perpendicular to the blade of the cutter 6. When the cutter 6 moves downward to the lowest end, it just enters the notch of the cutter backing plate 8 to realize the cutting of the extruded rubber. In addition, the models of the suitable cutter 6 and the cutter backing plate 8 can be flexibly replaced according to the width and thickness specifications of the rubber to be cut, which is convenient for efficiently completing the cutting work.

[0031] Furthermore, as Figures 2-4As shown in the figure, in order to prevent the rubber from running off during transportation, the guiding mechanism 3 is provided with a feeding guiding groove 9 and a discharging guiding groove 10. According to the width of the extruded rubber, the widths of the feeding guiding groove 9 and the discharging guiding groove 10 are adjusted, so that the extruded rubber is subjected to the lateral extrusion force of the guiding groove during the process of entering and leaving the cutting mechanism 2, preventing the rubber from moving horizontally during cutting and improving the cutting accuracy. Preferably, the feeding guiding groove and the discharging guiding groove are arranged in a V-shaped structure, which is beneficial to the feeding guidance of the rubber.

[0032] Furthermore, as Figure 2 shown in the figure, in order to improve the cutting efficiency and synchronously complete the cutting of multiple extruded rubbers, preferably, the guiding mechanism of this embodiment adopts a combined structure in which a plurality of feeding guiding grooves 9 and discharging guiding grooves 10 are arranged in parallel.

[0033] Furthermore, both the conveying mechanism 1 and the cutting mechanism 2 are electrically connected to the induction switch 5, and the operation of the cutting mechanism is controlled through the transmission of electrical signals, realizing the precise control of the cutting length of the rubber and improving the yield rate of the product.

[0034] Furthermore, as Figure 1 shown in the figure, in order to prevent the cutting knife 6 from getting hot after continuous high-frequency use and causing the sticking knife effect, which affects the cutting stability and the flatness of the cutting section, an air-cooling mechanism 11 is provided below the conveying mechanism 2 to continuously cool the cutting mechanism 2.

[0035] Furthermore, scales are provided on the conveyor belt fixing frame at the discharging end of the conveying mechanism 1. By moving the scale position where the moving positioning mechanism 4 is located, the required rubber length can be obtained, thereby realizing the precise cutting of the rubber length.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention 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 embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for cutting extruded rubber to length, comprising a conveying mechanism (1), a cutting mechanism (2), a guiding mechanism (3) and a positioning mechanism (4), characterized in that: The guide mechanism (3) is provided with a feed guide groove (9) and a discharge guide groove (10), the cutting mechanism (2) is located in the middle of the guide mechanism (3), the positioning mechanism (4) is movably arranged on the output end of the conveying mechanism (1), and the positioning mechanism (4) is provided with an induction switch (5) for controlling the start and stop of the conveying mechanism (1) and the cutting mechanism (2).

2. The extruded rubber cutting-to-length device according to claim 1, characterized in that: The cutting mechanism (2) comprises a detachably connected cutter (6), a cutting cylinder (7) connected to the top of the cutter (6) for controlling the up and down movement of the cutter (6), and a cutter pad (8) arranged below the cutter (6) and perpendicular to the blade of the cutter (6).

3. The extruded rubber cutting-to-length device according to claim 1, characterized in that: The guide mechanism (3) comprises a feed guide groove (9) and a discharge guide groove (10) whose lateral widths can be set according to the width specifications of the extruded rubber.

4. The extruded rubber cutting-to-length device according to claim 1, characterized in that: The conveying mechanism (1) and the cutting mechanism (2) are both electrically connected to the induction switch (5).

5. The extruded rubber cutting-to-length device according to claim 1, characterized in that: An air cooling mechanism (11) for cooling the cutting mechanism (2) is provided at the lower part of the conveying mechanism (1).

6. The extruded rubber cutting-to-length device according to claim 1, characterized in that: A scale is provided on the discharge end of the conveying mechanism (1) for use in the movement and positioning of the positioning mechanism (4).

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