Cutting equipment for rubber cold feed forming

Abstract

The utility model relates to the field of rubber cutting equipment, in particular to cutting equipment for rubber cold feed forming, which comprises a support frame, a pair of roller conveyors are symmetrically arranged at the inner bottom of the support frame, a cutting component is arranged between the two roller conveyors, and the roller conveyors are arranged on the support frame. And a pair of pressing assemblies are symmetrically arranged on the supporting frame on the two sides of the cutting assembly, and a rubber extrusion assembly is arranged on one side of the supporting frame. According to the utility model, through the arrangement of the pressing assembly, accurate lifting of the pressing plate is realized, so that the pressing force can be accurately controlled, and rubber displacement or damage caused by too large or too small pressing force is avoided; the cutting assembly is arranged, the hydraulic cylinder drives the cutting knife to descend for cutting, the cutting efficiency is high, rubber cutting can be rapidly completed, the cutting knife corresponds to the knife groove in the pressing base, cutting precision and accuracy are guaranteed, meanwhile, the design of the knife groove in the pressing base improves the cutting effect, and the cutting efficiency is improved. And the service life of the whole equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of rubber cutting equipment, and in particular to a cutting device for cold feeding rubber molding. Background Technology

[0002] Cutting equipment for cold feed molding of rubber refers to equipment used in the cold feed molding process of rubber to cut the plasticized and extruded rubber material into predetermined sizes and shapes. It is widely used in the production of rubber products, such as tires, rubber hoses, and rubber sheets.

[0003] Traditional rubber cold-feed molding cutting equipment often faces the problem of rubber displacement during rubber cutting, which not only affects the molding quality but also brings many inconveniences. These devices usually use blade cutting, which has relatively low cutting efficiency and takes a long time to complete a cutting task. In addition, because rubber is soft and has a certain degree of stretch, traditional cutting devices often cannot avoid the twisting and deformation of rubber during the cutting process, resulting in a significant reduction in cutting accuracy. Furthermore, traditional equipment also suffers from uneven plasticization and inaccurate metering during rubber extrusion, which directly leads to unstable extrusion volume and further affects production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a cutting device for cold-feed rubber molding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a support frame, a pair of roller conveyors symmetrically arranged at the bottom of the support frame, a cutting assembly arranged between the two roller conveyors, a pair of pressing assemblies symmetrically arranged on the support frame on both sides of the cutting assembly, and a rubber extrusion assembly arranged on one side of the support frame.

[0006] In a preferred embodiment of this utility model, the clamping assembly includes a pair of mounting plates symmetrically arranged on the inner top surface of the support frame. A bidirectional lead screw is provided between the two mounting plates. A fixed sleeve is provided on one side of the mounting plate of the bidirectional lead screw. The bidirectional lead screw is inserted into the fixed sleeve. A motor is provided on the mounting plate of the side of the bidirectional lead screw away from the fixed sleeve. The end of the bidirectional lead screw away from the fixed sleeve is connected to the transmission end of the motor.

[0007] In a preferred embodiment of this utility model, a pair of drive blocks are symmetrically arranged on the outer thread of the bidirectional lead screw, a pair of guide rails are symmetrically arranged between the two mounting plates, the two drive blocks are slidably arranged on the guide rails, a connector is provided at the bottom of each of the two drive blocks, and a connecting rod is provided on each of the two connectors.

[0008] As a preferred embodiment of this utility model, each of the two connecting rods is provided with a connecting member 2 at the end away from the connecting member 1, and a pressing plate is provided at the bottom of the two connecting members 2. A pair of guide rails 2 are symmetrically provided on the two mounting plates 1, and guide rail grooves are provided on both sides of the pressing plate corresponding to the positions of the guide rails 2.

[0009] In a preferred embodiment of this utility model, the cutting assembly includes a hydraulic cylinder disposed on the inner top surface of the support frame. A second mounting plate is disposed at the bottom of the telescopic rod of the hydraulic cylinder. A cutting blade is disposed at the bottom of the second mounting plate. A pair of first slide rails are symmetrically disposed on the inner top surface of the support frame. Slider blocks are disposed on both sides of the second mounting plate corresponding to the positions of the first slide rails. A pressure seat is disposed directly below the cutting blade. The pressure seat is located between the roller conveyors. A blade groove corresponding to the cutting blade is opened on the pressure seat.

[0010] As a preferred embodiment of the present invention, the rubber extrusion assembly includes a mounting frame disposed on one side of the support frame, a rubber extruder disposed on one side of the mounting frame, a feed inlet disposed on the top of the rubber extruder, a melt pump disposed on one side of the rubber extruder, a coupling disposed at the bottom of the melt pump, a speed reducer disposed at the bottom of the mounting frame, and the end of the coupling away from the melt pump being connected to the speed reducer.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0012] This invention features a clamping assembly. A motor drives a bidirectional lead screw to rotate, converting the rotational motion into the horizontal motion of the drive block. This allows for precise lifting and lowering of the clamping plate, enabling accurate control of the clamping force. This avoids rubber displacement or damage caused by excessive or insufficient clamping force. Guide rails one and two ensure the stability of the drive block and clamping plate during movement, preventing wobbling or deviation, thus guaranteeing the stability and consistency of the clamping effect.

[0013] This invention features a cutting assembly where a hydraulic cylinder drives the cutting blade to descend and cut. The hydraulic cylinder is characterized by its high output force, high speed, and good stability, resulting in high cutting efficiency and rapid rubber cutting. The cutting blade corresponds to the groove on the pressure seat, ensuring cutting precision and accuracy. Furthermore, the combination of the slide rail and the slider ensures the stability of the cutting blade during descent, preventing cutting deviations. In addition, the groove design on the pressure seat not only improves the cutting effect but also extends the service life of both the pressure seat and the cutting blade, reducing equipment maintenance costs.

[0014] This invention features a rubber extrusion assembly. The rubber extruder uses a screw rotation extrusion method to plasticize the rubber raw material into a molten state, resulting in good plasticization and ensuring the uniformity and stability of the rubber. Simultaneously, the melt pump precisely measures the molten rubber, ensuring a stable amount of rubber delivered to the roller conveyor and avoiding reduced production efficiency due to inaccurate measurement. Furthermore, the connection between the coupling and the reducer allows for convenient adjustment of the melt pump speed, thereby achieving precise control of the rubber extrusion amount and meeting different production needs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the clamping component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the clamping plate structure in the clamping assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the cutting component structure of this utility model;

[0019] Figure 5 This is an exploded structural diagram of the cutting component of this utility model;

[0020] Figure 6 This is a schematic diagram of the rubber extrusion assembly structure of this utility model.

[0021] Reference numerals: 1. Support frame; 2. Roller conveyor; 3. Pressing assembly; 3. Mounting plate 1; 31. Fixing sleeve; 32. Bidirectional lead screw; 33. Motor; 34. Drive block; 35. Connector 1; 36. Connecting rod; 37. Connector 2; 38. Pressing plate; 39. Guide rail 1; 310. Guide rail 2; 311. Cutting assembly; 4. Hydraulic cylinder; 41. Mounting plate 2; 42. Cutting blade; 43. Slide rail 1; 44. Slider; 45. Pressing seat; 46. Knife groove; 47. Rubber extrusion assembly; 5. Mounting frame; 51. Rubber extruder; 52. Melt pump; 53. Coupling; 54. Reducer; 55. Feed inlet; 56. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] like Figures 1-6As shown, the present invention proposes a cutting device for rubber cold feeding molding, which includes a support frame 1. The support frame 1 supports and fixes the pressing assembly 3 and the cutting assembly 4 to ensure stable operation of the equipment. A pair of roller conveyors 2 are symmetrically arranged at the bottom of the support frame 1. The roller conveyors 2 are responsible for transporting rubber. The left roller conveyor 2 transports the rubber forward to the pressing seat 46 and the right roller conveyor 2. After cutting, the right roller conveyor 2 continues to transport the cut rubber forward for feeding, so as to achieve continuous and stable material conveying. The cutting assembly 4 is arranged between the two roller conveyors 2. A pair of pressing assemblies 3 are symmetrically arranged on the support frame 1 on both sides of the cutting assembly 4. A rubber extrusion assembly 5 is arranged on one side of the support frame 1.

[0024] The clamping assembly 3 includes a pair of mounting plates 31 symmetrically arranged on the inner top surface of the support frame 1. The mounting plates 31 provide a mounting base for other components in the clamping assembly 3. A bidirectional lead screw 33 is arranged between the two mounting plates 31. The bidirectional lead screw 33 converts the rotational motion into the horizontal motion of the drive block 35, thereby realizing the lifting and lowering of the clamping plate 39. A fixed sleeve 32 is provided on the mounting plate 31 on one side of the bidirectional lead screw 33. The bidirectional lead screw 33 is inserted into the fixed sleeve 32. The fixed sleeve 32 supports the bidirectional lead screw 33 and ensures its stable rotation. A motor 34 is provided on the mounting plate 31 on the side of the bidirectional lead screw 33 away from the fixed sleeve 32. The end of the bidirectional lead screw 33 away from the fixed sleeve 32 is connected to the transmission end of the motor 34. The motor 34 drives the bidirectional lead screw 33 to rotate, providing power.

[0025] A pair of drive blocks 35 are symmetrically arranged on the outer thread of the bidirectional lead screw 33. The motor 34 drives the bidirectional lead screw 33 to rotate, converting the rotational motion of the bidirectional lead screw 33 into the horizontal motion of the drive blocks 35, so that the two drive blocks 35 move closer or further apart. A pair of guide rails 310 are symmetrically arranged between the two mounting plates 31. Both drive blocks 35 are slidably mounted on the guide rails 310. The guide rails 310 are used to guide the movement of the drive blocks 35 to ensure the accuracy and stability of the movement. A connector 36 is provided at the bottom of both drive blocks 35. The connector 36 provides the mounting base for the connecting rod 37. The connecting rod 37 is provided on both connectors 36.

[0026] Each of the two connecting rods 37 has a connecting part 38 at the end furthest from the connecting part 36. The connecting part 38 acts as a bridge between the connecting rod 37 and the pressure plate 39, transmitting power. The pressure plate 39 is located at the bottom of the two connecting parts 38. When the two driving blocks 35 move closer to each other and the two connecting parts 36 move closer to each other, the two connecting rods 37 close and push the pressure plate 39 downward, causing the pressure plate 39 to descend along the guide rail 311. When the two driving blocks 35 move away from each other and the two connecting parts 36 move away from each other, the two connecting rods 37 open and pull the pressure plate 39 upward, causing the pressure plate 39 to rise along the guide rail 311. A pair of guide rails 311 are symmetrically arranged on the two mounting plates 31. Guide rail grooves are opened on both sides of the pressure plate 39 at positions corresponding to the guide rails 311. The combination of the guide rails 311 and the guide rail grooves effectively ensures the stability of the pressure plate 39 during its descent.

[0027] The cutting assembly 4 includes a hydraulic cylinder 41 mounted on the inner top surface of the support frame 1. The hydraulic cylinder 41 provides power to drive the cutting blade 43 to descend for cutting. A mounting plate 42 is mounted at the bottom of the telescopic rod of the hydraulic cylinder 41. The mounting plate 42 fixes the cutting blade 43 and moves up and down with the telescopic rod of the hydraulic cylinder 41. The cutting blade 43 is mounted at the bottom of the mounting plate 42. The cutting blade 43 cuts the rubber to achieve fixed-length processing. A pair of slide rails 44 are symmetrically arranged on the inner top surface of the support frame 1. The mounting plate 42 is positioned on both sides corresponding to the slide rails 44. The combination of slider 45, slide rail 44, and slider 45 ensures that mounting plate 42 and cutting blade 43 move stably along a fixed path. A pressure seat 46 is set directly below the cutting blade 43. The pressure seat 46 is located between the roller conveyors 2. The pressure seat 46 has a blade groove 47 corresponding to the cutting blade 43. The combination of pressure seat 46 and blade groove 47, with pressure seat 46 located between the roller conveyors 2, is used to support the rubber. The blade groove 47 corresponds to the cutting blade 43, making the rubber cut more thoroughly and extending the service life of pressure seat 46 and cutting blade 43.

[0028] The rubber extrusion assembly 5 includes a mounting frame 51 located on one side of the support frame 1. The mounting frame 51 provides a mounting base for other components in the rubber extrusion assembly 5. A rubber extruder 52 is mounted on one side of the mounting frame 51. The rubber extruder 52 plasticizes the rubber raw material into a molten state and extrudes it through screw rotation. A feed port 56 is located at the top of the rubber extruder 52 for adding rubber raw material. A melt pump 53 is located on one side of the rubber extruder 52. The melt pump 53 precisely measures the molten rubber to ensure a stable amount of rubber delivered to the roller conveyor 2. A coupling 54 is located at the bottom of the melt pump 53, and a reducer 55 is located at the bottom of the mounting frame 51. The end of the coupling 54 away from the melt pump 53 is connected to the reducer 55. The combined use of the coupling 54, the reducer 55, and the melt pump 53 enables stable operation and speed regulation of the melt pump 53.

[0029] In operation, the operator first starts the rubber extrusion assembly 5, pours the rubber raw material into the feed inlet 56, and the screw inside the rubber extruder 52 rotates and extrudes the rubber raw material, plasticizing it into a molten state. The molten rubber is precisely metered by the melt pump 53 and conveyed to the roller conveyor 2. Then, the roller conveyor 2 is started, and the left roller conveyor 2 in the support frame 1 transports the rubber forward. The rubber passes through the pressure seat 46 and reaches the right roller conveyor 2. The right roller conveyor 2 continues to transport the rubber forward. When the preset length is reached, the roller conveyors 2 on both sides are paused first, and then the clamping assemblies 3 on both sides are started. The motor 34 drives the bidirectional lead screw 33 to rotate, converting the rotational motion of the bidirectional lead screw 33 into the horizontal motion of the drive block 35, so that the two drive blocks 35 move closer to each other along the guide rail 310. When the two drive blocks 35 move closer to each other, the bottom of the drive block 35 is located at the bottom of the drive block 35. The connecting parts 36 of the first part also move closer to each other, driving the two connecting rods 37 to close, thereby pushing the connecting part 38 downward and driving the pressure plate 39 to move downward along the guide rail 311, thereby pressing down the front and rear of the rubber to be cut position on the roller conveyor 2, preventing the rubber from shifting during the cutting process and causing errors that affect production efficiency. Then the cutting assembly 4 is started, the telescopic rod of the hydraulic cylinder 41 extends, driving the mounting plate 42 and the cutting blade 43 to descend along the slide rail 44 to cut the rubber. The knife groove 47 on the pressure seat 46 not only makes the rubber cut more thoroughly, but also extends the service life of the pressure seat 46 and the cutting blade 43. After the cutting is completed, the pressure assembly 3 can be started, the motor 34 drives the bidirectional screw 33 to rotate, causing the pressure plate 39 to rise, releasing the rubber, and starting the roller conveyor. The left roller conveyor 2 continues to feed material, while the right roller conveyor 2 unloads the rubber that has been cut.

[0030] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A cutting device for cold-feed rubber molding, comprising: A support frame (1) is provided with a pair of roller conveyors (2) symmetrically arranged at the bottom of the support frame (1). The support frame (1) is characterized in that: a cutting assembly (4) is provided between the two roller conveyors (2), a pair of pressing assemblies (3) are symmetrically arranged on the support frame (1) on both sides of the cutting assembly (4), and a rubber extrusion assembly (5) is provided on one side of the support frame (1). The clamping assembly (3) includes a pair of mounting plates (31) symmetrically arranged on the inner top surface of the support frame (1). A bidirectional screw (33) is provided between the two mounting plates (31). A fixed sleeve (32) is provided on the mounting plate (31) on one side of the bidirectional screw (33). The bidirectional screw (33) is inserted into the fixed sleeve (32). A motor (34) is provided on the mounting plate (31) on the side of the bidirectional screw (33) away from the fixed sleeve (32). The end of the bidirectional screw (33) away from the fixed sleeve (32) is connected to the transmission end of the motor (34). The two-way lead screw (33) has a pair of drive blocks (35) symmetrically arranged on the outer thread, and a pair of guide rails (310) symmetrically arranged between the two mounting plates (31). The two drive blocks (35) are slidably arranged on the guide rails (310). The bottom of the two drive blocks (35) is provided with a connector (36), and the two connectors (36) are provided with a connecting rod (37).

2. The cutting equipment for cold-feed rubber molding according to claim 1, characterized in that: Each of the two connecting rods (37) is provided with a connecting part two (38) at the end away from the connecting part one (36). A pressure plate (39) is provided at the bottom of each of the two connecting parts two (38). A pair of guide rails two (311) are symmetrically provided on the two mounting plates one (31). Guide rail grooves are provided on both sides of the pressure plate (39) at the positions corresponding to the guide rails two (311).

3. The cutting equipment for cold-feed rubber molding according to claim 2, characterized in that: The cutting assembly (4) includes a hydraulic cylinder (41) disposed on the inner top surface of the support frame (1). The bottom of the telescopic rod of the hydraulic cylinder (41) is provided with a second mounting plate (42). The bottom of the second mounting plate (42) is provided with a cutting blade (43). A pair of slide rails (44) are symmetrically disposed on the inner top surface of the support frame (1). Slider blocks (45) are disposed on both sides of the second mounting plate (42) corresponding to the positions of the slide rails (44). A pressure seat (46) is disposed directly below the cutting blade (43). The pressure seat (46) is located between the roller conveyors (2). A blade groove (47) corresponding to the cutting blade (43) is opened on the pressure seat (46).

4. The cutting equipment for cold-feed rubber molding according to claim 3, characterized in that: The rubber extrusion assembly (5) includes a mounting frame (51) disposed on one side of the support frame (1), a rubber extruder (52) disposed on one side of the mounting frame (51), a feed inlet (56) disposed on the top of the rubber extruder (52), a melt pump (53) disposed on one side of the rubber extruder (52), a coupling (54) disposed at the bottom of the melt pump (53), a speed reducer (55) disposed at the bottom of the mounting frame (51), and the end of the coupling (54) away from the melt pump (53) is connected to the speed reducer (55).

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