Automatic rubber cutting machine

Abstract

The utility model discloses an automatic rubber cutting machine, including cutting machine main part, chain conveyer, entrance guide roller, cutting machine main part includes the rigid support frame of frame, bottom plate, top plate and a plurality of stand axle constitution, cutting machine main part is equipped with horizontal knife guide column and vertical knife guide column, and horizontal knife plate subassembly and vertical knife plate subassembly are installed between corresponding guide post respectively, and are driven to realize vertical reciprocating cutting by horizontal knife oil cylinder and vertical knife oil cylinder respectively, horizontal knife backing plate subassembly and vertical knife backing plate subassembly are located below corresponding cutting knife respectively, are used for providing cutting knife buffer support, chain conveyer sets up in cutting machine main part front end, is used for conveying rubber material to cutting area, the utility model realizes the automatic conveying, accurate positioning, horizontal and vertical cutting, compacting fixed, discharge control and safety protection integrated function of rubber material, and adapts to different specifications and the batch processing demand of the rubber material of elastic characteristic.

Description

Technical Field

[0001] This utility model relates to the field of rubber processing technology, and in particular to an automatic rubber cutting machine. Background Technology

[0002] In natural rubber dry mixing production lines, rubber cutting is a crucial process step, preparing the rubber for subsequent feeding into the dry mixer. Current natural rubber processing relies on manual operation for each step. Due to harsh working conditions and high labor intensity, automation of rubber processing lines is a pressing issue for existing rubber processing companies, and automatic rubber cutting machines are one such process that needs to be addressed. Existing rubber cutting machines rely on manual feeding of the rubber through a cutter head, which hinders the upgrading and automation of the entire production line and poses significant safety risks to workers. Because rubber has high elasticity and a certain degree of resilience, manual feeding and simple cutting methods cannot guarantee material stability during the cutting process, easily leading to dimensional errors or uneven cut surfaces. Traditional equipment cannot achieve automatic feeding, precise distance measurement, and synchronous control during the cutting process, limiting its efficiency and consistency in mass production.

[0003] To address the aforementioned issues, there is an urgent need for a rubber cutting device with automatic conveying, intelligent positioning, bidirectional cutting capabilities, and multi-segment control functions to improve cutting accuracy, safety, and automation, and to adapt to modern rubber processing lines. Utility Model Content

[0004] The purpose of this invention is to achieve integrated functions such as automatic conveying, precise positioning, horizontal and vertical cutting, pressing and fixing, material discharge control and safety protection of rubber materials, so as to meet the batch processing needs of rubber materials with different specifications and elastic properties.

[0005] This utility model is achieved using the following technical solution: an automatic rubber cutting machine, characterized in that it includes a cutting machine body, a chain conveyor, and an inlet guide roller. The cutting machine body includes a rigid support frame composed of a frame, a base plate, a top plate, and multiple column shafts. The cutting machine body is provided with horizontal blade guide columns and vertical blade guide columns. The horizontal blade assembly and the vertical blade assembly are respectively installed between the corresponding guide columns and are driven by the horizontal blade cylinder and the vertical blade cylinder respectively to achieve vertical reciprocating cutting. The horizontal blade pad assembly and the vertical blade pad assembly are respectively located below the corresponding cutter to provide buffer support for the cutter. The chain conveyor is set at the front end of the cutting machine body to transport rubber material to the cutting area. The inlet guide roller is set between the chain conveyor and the cutting machine body and is a free-rotating structure to provide initial guidance and correction for the rubber. The cutting machine body is equipped with a photoelectric sensor to trigger the cutting action when the rubber is in place. The cutter falls vertically under the constraint of the guide structure to achieve precise cutting.

[0006] Furthermore, the transverse and longitudinal blade assemblies are equipped with elastic pressure plate structures. These elastic pressure plates are connected to both sides of the blade holder by springs. Before the cutter is pressed down by the hydraulic cylinder, the elastic pressure plates first contact the rubber and apply pre-pressure, thus forming a stable and compressed state before cutting. This structure effectively fixes the rubber during cutting, preventing cutting line deviation due to material rebound or edge warping. It is particularly suitable for cutting highly elastic materials such as natural rubber, significantly improving cutting quality and consistency.

[0007] Furthermore, the main body of the rubber cutting machine is equipped with a hydraulic cylinder lifting sensor assembly and a longitudinal blade exit sensor assembly. The hydraulic cylinder lifting sensor assembly is used to detect the start and end positions of the cutter, while the longitudinal blade exit sensor assembly is used to detect the output length of the rubber, thereby achieving precise control over the cutting depth and length. This control logic makes the entire cutting process more flexible and precise, suitable for batch operations of multiple specifications.

[0008] Furthermore, the main body of the rubber cutting machine further includes a longitudinal guide assembly and a transverse guide assembly, used to clamp and position the rubber material before cutting. Driven by a cylinder and via a guide rail slider, an elastic pressure plate clamps the rubber, thereby improving cutting stability. This clamping structure keeps the material stable throughout the cutting process, effectively preventing cutting errors caused by center of gravity shift or material warping.

[0009] Furthermore, after the photoelectric sensor detects the rubber in place, the longitudinal and transverse guide components first perform a clamping action, followed by the cutting assembly starting to work. After cutting is completed, the guide components retract, coordinating with the cutting system to achieve synchronous control. These three coordinated actions constitute a complete "positioning-cutting-release" operation cycle, achieving an efficient, stable, and automated cutting process.

[0010] Furthermore, the chain conveyor features a zoned control structure, comprising at least three independent control zones. Each zone is controlled by an independent motor or drive unit, and combined with front and rear sensors, it achieves a coordinated conveying mechanism of "cutting zone locking, buffer zone release, and feeding zone preparation." This control method can precisely match the cutting rhythm, preventing the rubber from misaligning, swaying, or tilting due to inertia, effectively improving the overall conveying and cutting stability.

[0011] Furthermore, each control area of ​​the chain conveyor can be independently set with start-stop logic according to the rubber size, cycle time requirements, and cutting sequence to ensure the positional stability and operational coordination of large-sized or irregularly shaped rubber materials during the conveying and cutting process.

[0012] The automatic rubber cutting machine described in this utility model has the following advantages:

[0013] By linking the chain conveyor with the sensor system for control, the entire process of rubber feeding, positioning, cutting, and discharging can be automated, effectively reducing manual operation and improving production efficiency.

[0014] It adopts a bidirectional guide structure and a high-strength pad assembly. The cutter is vertically guided for cutting, and the elastic pressure plate structure can firmly press the rubber, effectively avoiding factors such as displacement, rebound, and edge warping.

[0015] By setting up longitudinal guide components, transverse guide components, as well as lifting and discharge sensors, a triple positioning mechanism is achieved in the up-down, left-right, and front-back directions, which significantly improves the accuracy and consistency of cutting repeatability.

[0016] It is suitable for various highly elastic materials such as natural rubber and synthetic rubber, and supports cutting scenarios with different thicknesses and sizes. Attached Figure Description

[0017] 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. 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 the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an automatic rubber cutting machine;

[0019] Figure 2 This is a schematic diagram of the main structure of the rubber cutting machine;

[0020] In the diagram, 1-frame, 2-base plate, 3-longitudinal guide assembly, 4-transverse guide assembly, 5-cross blade pad assembly, 6-longitudinal blade outlet sensor assembly, 7-cross blade guide column, 8-transverse blade assembly, 9-longitudinal blade assembly, 10-column shaft, 11-top plate, 12-cross blade cylinder, 13-cylinder lifting sensor assembly, 14-longitudinal blade cylinder, 15-longitudinal blade guide column, 16-guide support plate, 17-longitudinal blade pad assembly, 100-main body of the cutting machine, 200-electrical cabinet, 300-outer shell, 400-inlet guide roller, 500-chain conveyor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Example 1

[0023] like Figure 1-2 As shown, this embodiment provides an automatic rubber cutting machine, including a cutting machine body 100, a chain conveyor 500, an inlet guide roller 400, a housing 300, and an electrical cabinet 200.

[0024] The main body 100 of the rubber cutting machine includes basic structural components such as a frame 1, a base plate 2, a top plate 11, a column shaft 10, a horizontal blade guide column 7, a vertical blade guide column 15, and a guide support plate 16. The base plate 2 and the top plate 11 form an integral rigid support frame through the column shaft 10. The horizontal blade guide column 7 is located between the guide support plate 16 and the top plate 11. The vertical blade guide column 15 is vertically located at both ends of the frame 1 to guide the vertical sliding of the horizontal blade assembly 8 and the vertical blade assembly 9, respectively.

[0025] The transverse blade assembly 8 and the longitudinal blade assembly 9 are respectively installed between corresponding guide pillars, and are connected to the transverse blade cylinder 12 and the longitudinal blade cylinder 14 at the top to realize bidirectional cutting action. The cutter falls vertically under the constraint of the guide structure to complete the precise cutting of the rubber, and the cutter returns to its original position after rising.

[0026] Below the cutter, there are cross blade pad assembly 5 and vertical blade pad assembly 17 respectively. The pads are made of high-strength non-metallic wear-resistant material and are used to provide buffer contact after the cutter cuts the rubber to avoid damage to the blade and keep the rubber in a stable position.

[0027] To achieve automated rubber conveying and positioning, a chain conveyor 500 is installed at the front inlet of the rubber cutter body 100. Rubber can be placed onto the chain manually or by a robotic arm. An inlet guide roller 400 is installed at the inlet position. This guide roller has a free-rotating structure and is used for initial correction and guidance of the rubber, ensuring it smoothly enters the guiding area and reducing deviation. A photoelectric sensor triggers a signal after the rubber enters the preset position, stopping the chain and starting the cutting system.

[0028] The working area of ​​the main body 100 of the rubber cutter is enclosed by the outer shell 300, which is made of sheet metal and features inspection and observation windows. This not only provides protection and dust prevention but also enhances the overall aesthetics and industrial adaptability of the machine. To reduce the equipment's footprint, the electrical cabinet 200 adopts a compact, integrated design, located beneath the main body 100 and connected via sliding rails for easy maintenance and wiring. Internally, it houses a PLC control system, a human-machine interface, and control relays, providing logical control over the machine's operation.

[0029] The automatic rubber cutting machine described in this embodiment has a reasonable structure and complete functions. It integrates functions such as automatic rubber feeding, precise positioning, horizontal and vertical cutting, pressing and fixing, and return conveying. It is suitable for industrial cutting and processing of rubber materials of various specifications and features high cutting efficiency, good precision, compact structure, and safety and reliability. Example 2

[0030] This embodiment is a further optimization based on Embodiment 1, specifically:

[0031] Elastic pressure plate structures are respectively provided on the transverse blade assembly 8 and the longitudinal blade assembly 9. The elastic pressure plates are connected to both sides of the blade holder by springs. When the hydraulic cylinder drives the cutter to press down, the elastic pressure plates first contact the upper surface of the rubber and apply pre-pressure. As the cutter continues to descend, the springs gradually compress, forming a stable and enhanced clamping force. The elastic pressure plates are located on both sides of the cutter. Under the action of the springs, the initial length of the elastic pressure plates is greater than that of the cutter. Therefore, the elastic pressure plates first contact the upper surface of the rubber. As the cutter moves, the cutter gradually extends out between the elastic pressure plates and begins to cut the rubber. At this time, the elastic pressure plates have already provided a continuous clamping force on the rubber on both sides of the cutter.

[0032] This structural design firmly holds the rubber in place during cutting, preventing it from rebounding, shifting, or warping and affecting cutting accuracy. As the cutter retracts, the pressure plate remains briefly pressed down, ensuring the rubber doesn't move upwards with the cutter during the retraction process. This improves cutting quality and process stability, making it particularly suitable for highly elastic materials such as natural rubber. Example 3

[0033] This embodiment is a further optimization based on Embodiment 1, specifically:

[0034] The cutting control system incorporates a hydraulic cylinder lifting sensor assembly 13 and a longitudinal blade exit sensor assembly 6 to achieve precise control of the cutter position and the length of the rubber output.

[0035] The hydraulic cylinder lifting sensor assembly 13 adopts the form of photoelectric or proximity sensor and is arranged at the end points of the upper and lower strokes of the hydraulic cylinder to identify the start and end positions of the cutter, thereby controlling the cutting depth and avoiding over-cutting or under-cutting.

[0036] The longitudinal cutter outlet sensor assembly 6 is arranged at the front end of the longitudinal cutter guide post 15 and is fixed by a sensor bracket. The bracket has an elongated sliding hole, which allows the sensor to flexibly adjust its height and front and rear positions according to the rubber specifications, so as to realize the automatic setting of the discharge length.

[0037] This optimization solution significantly improves the automation level of the equipment and product consistency, facilitating stable operation with high precision and high cycle time in mass production scenarios. Example 4

[0038] This embodiment is a further optimization based on Embodiment 1, specifically:

[0039] A transverse guide component 4 and a longitudinal guide component 3 were added to laterally clamp and position the rubber before cutting, preventing cutting deviations caused by uneven material or shift in the center of gravity.

[0040] Both the transverse guide assembly 4 and the longitudinal guide assembly 3 are driven by cylinders, which in turn drive the elastic pressure plates to clamp the rubber from both sides via guide rail sliders. When the rubber reaches the desired position and triggers the sensor, the system first drives the guide assemblies to perform the clamping action, and then the cutter performs the cutting. After the cutting is completed, the guide assemblies retract, and the rubber continues to be conveyed.

[0041] This structure, together with the elastic pressure plate and sensor, forms a triple positioning system that fixes the rubber in all directions—longitudinal, transverse, and vertical—improving cutting accuracy and repeatability. It is particularly suitable for processing rubber parts that require high positioning accuracy. Example 5

[0042] This embodiment is a further optimization based on Embodiment 1, specifically:

[0043] The chain conveyor 500 is designed with zoned control to achieve more refined management of the rubber conveying process.

[0044] The chain conveyor 500 is divided into multiple control zones according to the processing cycle, with each zone controlled by an independent motor or drive unit. Combined with front and rear sensors and controller logic, it achieves a three-stage linkage control mechanism: "cutting zone locking, buffer zone release, and feeding zone preparation."

[0045] When the rubber enters the horizontal blade area, the front section locks and performs cutting; after cutting, only the middle section is released, allowing the rubber to smoothly enter the vertical blade area. The entire process achieves modular synchronous advancement, avoiding vibration or misalignment of the rubber during the conveying process.

[0046] This structure is particularly suitable for rubber materials that are large in size or irregular in shape, and can effectively ensure their stability during the conveying and cutting process, thereby improving system coordination and overall machine efficiency.

[0047] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. An automatic rubber cutting machine, characterized by, The machine includes a rubber cutting machine body (100), a chain conveyor (500), and an inlet guide roller (400). The rubber cutting machine body (100) includes a rigid support frame consisting of a frame (1), a base plate (2), a top plate (11), and multiple column shafts (10). The rubber cutting machine body (100) is provided with a horizontal blade guide column (7) and a vertical blade guide column (15). It also includes a horizontal blade assembly (8) and a vertical blade assembly (9) installed between the horizontal blade guide column (7) and the vertical blade guide column (15), respectively driven by the horizontal blade cylinder (12) and the vertical blade cylinder (14) to achieve vertical reciprocating cutting. It also includes a horizontal blade pad assembly (5). The longitudinal blade pad assembly (17) is located below the transverse blade assembly (8) and the longitudinal blade assembly (9), respectively, to provide buffer support for the cutter; the chain conveyor (500) is located at the front end of the rubber cutter body (100) to transport rubber material to the cutting area; the inlet guide roller (400) is located between the chain conveyor (500) and the rubber cutter body (100), and is a free-rotating structure to provide initial guidance and correction for the rubber; the rubber cutter body (100) is equipped with a photoelectric sensor to trigger the cutting action when the rubber is in place, and the cutter falls vertically under the constraint of the guide structure to achieve precise cutting.

2. The automatic rubber cutting machine according to claim 1, characterized in that, The transverse blade assembly (8) and the longitudinal blade assembly (9) are provided with elastic pressure plate structures. The elastic pressure plates are connected to both sides of the blade holder by springs. Before the cutter is pressed down by the oil cylinder, the elastic pressure plates first contact the rubber and apply pre-pressure, thereby forming a stable pressing state before cutting.

3. The automatic rubber cutting machine according to claim 1, characterized in that, The main body (100) of the rubber cutting machine is equipped with a hydraulic cylinder lifting sensor assembly (13) and a longitudinal blade outlet sensor assembly (6). The hydraulic cylinder lifting sensor assembly (13) is used to detect the start and end positions of the cutter, and the longitudinal blade outlet sensor assembly (6) is used to detect the output length of the rubber, so as to achieve precise control of the cutting depth and length.

4. The automatic rubber cutting machine according to claim 1, characterized in that, The rubber cutting machine body (100) further includes a longitudinal guide assembly (3) and a transverse guide assembly (4) for clamping and positioning the rubber material before cutting. The rubber is driven by a cylinder and the elastic pressure plate is driven by the guide rail slider to clamp the rubber, thereby improving the cutting stability.

5. The automatic rubber cutting machine according to claim 4, wherein After the photoelectric sensor detects that the rubber is in place, the longitudinal guide component (3) and the transverse guide component (4) first perform a clamping action, and then the cutter component starts to work. After the cutting is completed, the guide component retracts, and the cutting system achieves synchronous control.

6. The automatic rubber cutting machine according to claim 1, wherein The chain conveyor (500) has a zoned control structure, including at least three independent control zones. Each zone is controlled by an independent motor or drive unit, and combined with front and rear sensors, it realizes a linkage conveying mechanism of "cutting zone locking, buffer zone release, and feeding zone preparation".

7. The automatic rubber cutting machine according to claim 1, wherein Each control area of ​​the chain conveyor (500) can be independently set with start-stop logic according to the rubber size, cycle time requirements and cutting sequence to ensure the positional stability and operational coordination of large-sized or irregularly shaped rubber materials during the conveying and cutting process.

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