Rubber raw material crushing device and rubber raw material crushing method

Abstract

The invention discloses a rubber raw material crushing device and a rubber raw material crushing method. The rubber raw material crushing device comprises a base, a crusher is arranged on the base, a screening mechanism is arranged below the crusher, and a belt conveyor is arranged below the screening mechanism; the screening mechanism comprises a frame arranged at the lower end of a shell of the crusher, a screening frame is slidably arranged in the frame, a first opening is formed in one side of the screening frame, a screen is slidably arranged in the first opening, a second opening is formed in the side face of the frame, at least part of the screen penetrates through the second opening, and a collecting box is arranged at one end of the belt conveyor. A material lifting box is arranged on the support in an up-down displacement mode, an opening is formed in one side of the material lifting box, a cover plate is hinged to the opening, and a material guide plate is arranged at the position of the opening in the upper end of the shell. The problems that according to a crushing device in the prior art, crushed rubber raw materials are difficult to screen, and unqualified crushed raw materials are difficult to convey for secondary crushing are solved.

Description

Technical Field

[0001] The invention relates to the field of rubber manufacturing, and in particular to a rubber raw material crushing device and a rubber raw material crushing method. Background Art

[0002] Crushing rubber raw materials is an important part of rubber production and recycling, and crushing is generally carried out using a double-roll crusher. For example, the Chinese patent with patent number CN208407227U provides a roller-type natural rubber crusher, which is composed of a first roller-shaped disc cutter assembly and a second roller-shaped disc cutter assembly that rotate relatively and are arranged in parallel; the first roller-shaped disc cutter assembly includes a speed ratio gear, a first transmission shaft and a first drum-type cutter roller; the first drum-type cutter roller is composed of a first large disc cutter and a disc cutter that are evenly staggered; the second roller-shaped disc cutter assembly includes a speed ratio gear, a second transmission shaft and a second drum-type cutter roller; the second drum-type cutter roller is composed of a second large disc cutter and a small disc cutter that are evenly staggered. The roller-type natural rubber crusher uses three types of disc cutters, four-edged disc cutters, large disc cutters and small disc cutters, to form a roller shape, which are installed in a mutually interlocking shape. When working, relative rotation and differential speed are used in a semi-enclosed cavity to roll and shear the gel blocks, which can crush gel blocks of different sizes into uniform and small rubber blocks, which is conducive to removing impurities and mixing. The crushing device in the prior art, for example, is difficult to screen the crushed rubber raw materials, and is difficult to transport the unqualified crushed raw materials for secondary crushing, resulting in a poor crushing effect. Summary of the invention

[0003] The purpose of the present invention is to provide a rubber raw material crushing device and a rubber raw material crushing method, which solves the problems in the crushing device in the prior art that it is difficult to screen the crushed rubber raw materials, it is difficult to transport the unqualified crushed raw materials for secondary crushing, and the crushing effect is poor.

[0004] In order to achieve the above object, the present invention provides a rubber raw material crushing device, the rubber raw material crushing device comprises a base, a crusher is arranged on the base, a screening mechanism is arranged below the crusher, and a belt conveyor is arranged below the screening mechanism;

[0005] The screening mechanism includes a frame arranged at the lower end of the outer shell of the crusher, a screening frame slidably arranged in the frame, a first opening arranged on one side of the screening frame, a screen slidably arranged in the first opening, a second opening arranged on the side of the frame, the screen at least partially penetrates the second opening, a collecting box is arranged at one end of the belt conveyor, and a bracket is arranged at the other end thereof, a lifting box is arranged on the bracket so as to be displaceable up and down, an opening is arranged on one side of the lifting box, a cover plate is hinged on the opening, a material guide plate is arranged at the opening at the upper end of the outer shell, and the cover plate can be flipped over to enable the raw materials in the lifting box to slide from the cover plate to the material guide plate.

[0006] Preferably, a buckle is provided on the cover plate, and a hook cooperating with the buckle is provided on the material lifting box.

[0007] Preferably, a cylinder is disposed at the upper end of the bracket, a vertical slot is formed on the side of the bracket, and sliders are disposed at both ends of the lifting box, and the sliders pass through the vertical slots and are connected to the output shaft of the cylinder.

[0008] Preferably, the bottom of the material lifting box is in an inclined structure, and the lower end of the inclined structure is close to the cover plate.

[0009] Preferably, two groups of crushing rollers are rotatably arranged in the shell, the rotating shafts of the crushing rollers extend out of the shell and are connected to gears, the two gears are meshed, a first motor is arranged on the side of the shell, and the output shaft of the first motor is coaxially connected to the crushing rollers.

[0010] Preferably, a pressing cylinder is provided on the screening frame, so that the pressing cylinder can press the screen onto the screening frame.

[0011] Preferably, one end of the screening frame is connected to the frame body through a spring, and the other end is provided with a sliding rod, and the end of the sliding rod is provided with a contact wheel. A second motor is provided on the base, and the output shaft of the second motor is connected to a cam, and the cam is in contact with the contact wheel.

[0012] Preferably, the belt conveyor comprises a belt roller arranged on the base, the belt roller is connected by a belt, a forward and reverse motor is arranged on the outside of the base, and the output shaft of the forward and reverse motor is connected to the belt roller.

[0013] The present invention also provides a method for crushing rubber raw materials, which is performed using the above-mentioned rubber raw material crushing device and comprises:

[0014] 1) Add the raw materials into the shell;

[0015] 2) Use the cam and the friction wheel to drive the screening frame to reciprocate in the frame;

[0016] 3) The screened crushed raw materials are transported to the collection box through a belt conveyor;

[0017] 4) Pull out the screen and make the belt conveyor reverse the conveyance to transport the insufficiently crushed raw materials into the lifting box;

[0018] 5) The lifting box is lifted to a certain height by using a cylinder, and the cover plate is turned over, so that the raw materials in the lifting box slide from the cover plate to the guide plate and enter the shell body for crushing again.

[0019] Beneficial effects: The present invention provides a rubber raw material crushing device, the rubber raw material crushing device comprises a base, a crusher is arranged on the base, a screening mechanism is arranged below the crusher, and a belt conveyor is arranged below the screening mechanism; the screening mechanism comprises a frame body arranged at the lower end of the outer shell of the crusher, a screening frame is slidably arranged in the frame body, a first opening is arranged on one side of the screening frame, a screen is slidably arranged in the first opening, a second opening is arranged on the side of the frame body, and the screen at least partially passes through the second opening, a collecting box is arranged at one end of the belt conveyor, and a bracket is arranged at the other end thereof, a material lifting box is arranged on the bracket so as to be displaceable up and down, an opening is arranged on one side of the material lifting box, a cover plate is hinged on the opening, a material guide plate is arranged at the opening at the upper end of the outer shell, and flipping the cover plate can make the raw materials in the material lifting box slide from the cover plate to the material guide plate. During the specific operation, the raw materials are added into the outer shell; the cam and the contact wheel are used to drive the screening frame to reciprocate in the frame; the screened crushed raw materials are transported to the collection box through the belt conveyor; the screen is pulled out, and the belt conveyor is made to transport in the reverse direction to transport the insufficiently crushed raw materials into the lifting box; the lifting box is lifted to a certain height by the cylinder, and the cover plate is turned over, so that the raw materials in the lifting box slide from the cover plate to the guide plate, and enter the shell for re-crushing. The rubber raw material crushing device provided by the present invention can timely screen the crushed raw materials, collect qualified raw materials, and lift unqualified raw materials to the opening of the crusher for re-crushing, which greatly improves the crushing effect.

[0020] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1This is a structural diagram of the rubber raw material crushing device provided by the present invention from a first perspective;

[0023] Figure 2 This is a second perspective structural diagram of the rubber raw material crushing device provided by the present invention;

[0024] Figure 3 It is a structural diagram of the screening mechanism in the rubber raw material crushing device provided by the present invention.

[0025] Description of Reference Numerals

[0026] 1-base; 2-housing; 3-first motor; 4-crushing roller; 5-material guide plate; 6-gear; 7-belt conveyor; 8-collecting box; 9-bracket; 10-cylinder; 11-lifting box; 12-cover plate; 13-frame; 14-spring; 15-pressing cylinder; 16-screening frame; 17-screen; 18-slide rod; 19-cam; 20-second motor. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0028] like Figure 1-3As shown: The present invention provides a rubber raw material crushing device, the rubber raw material crushing device comprises a base 1, a crusher is arranged on the base 1, a screening mechanism is arranged below the crusher, and a belt conveyor 7 is arranged below the screening mechanism; the screening mechanism comprises a frame 13 arranged at the lower end of the shell 2 of the crusher, a screening frame 16 is slidably arranged in the frame 13, a first opening is arranged on one side of the screening frame 16, a screen 17 is slidably arranged in the first opening, a second opening is arranged on the side of the frame 13, and the screen 17 at least partially penetrates the second opening, a collecting box 8 is arranged at one end of the belt conveyor 7, and a bracket 9 is arranged at the other end thereof, a lifting box 11 is arranged on the bracket 9 so as to be displaceable up and down, an opening is arranged on one side of the lifting box 11, a cover plate 12 is hinged on the opening, and a material guide plate 5 is arranged at the opening at the upper end of the shell 2, and the cover plate 12 is turned over so that the raw materials in the lifting box 11 can slide from the cover plate 12 to the guide plate 5. During the specific operation, the raw materials are added into the outer shell; the cam and the contact wheel are used to drive the screening frame to reciprocate in the frame; the screened crushed raw materials are transported to the collection box through the belt conveyor; the screen is pulled out, and the belt conveyor is made to transport in the reverse direction to transport the insufficiently crushed raw materials into the lifting box; the lifting box is lifted to a certain height by the cylinder, and the cover plate is turned over, so that the raw materials in the lifting box slide from the cover plate to the guide plate, and enter the shell for re-crushing. The rubber raw material crushing device provided by the present invention can timely screen the crushed raw materials, collect qualified raw materials, and lift unqualified raw materials to the opening of the crusher for re-crushing, which greatly improves the crushing effect.

[0029] In a preferred embodiment of the present invention, in order to fix the cover plate, a buckle is provided on the cover plate 12, and a hook matching with the buckle is provided on the material lifting box 11.

[0030] In a preferred embodiment of the present invention, in order to facilitate the lifting of the lifting box, a cylinder 10 is provided at the upper end of the bracket 9, a vertical groove is formed on the side of the bracket 9, and sliders are provided at both ends of the lifting box 11, and the sliders pass through the vertical grooves and are connected to the output shaft of the cylinder 10.

[0031] In a preferred embodiment of the present invention, in order to allow the raw materials in the lifting box to slide out smoothly, the bottom of the lifting box 11 is an inclined structure, and the lower end of the inclined structure is close to the cover plate 12.

[0032] In a preferred embodiment of the present invention, two groups of crushing rollers 4 are rotatably arranged in the outer shell 2, the rotating shafts of the crushing rollers 4 extend out of the outer shell 2 and are connected to gears 6, the two gears 6 are meshed, and a first motor 3 is arranged on the side of the outer shell 2, and the output shaft of the first motor 3 is coaxially connected to the crushing rollers 4.

[0033] In a preferred embodiment of the present invention, in order to fix and lock the screen during the screening operation, a pressing cylinder 15 is provided on the screening frame 16 so that the pressing cylinder 15 can press the screen 17 onto the screening frame 16 .

[0034] In a preferred embodiment of the present invention, in order to drive the screening frame to reciprocate and perform screening operations on the raw materials above, one end of the screening frame 16 is connected to the frame body 13 through a spring 14, and the other end is provided with a slide rod 18, and the end of the slide rod 18 is provided with a resistance wheel. A second motor 20 is provided on the base 1, and the output shaft of the second motor 20 is connected to a cam 19, and the cam 19 is in contact with the resistance wheel.

[0035] In a preferred embodiment of the present invention, the belt conveyor 7 includes a belt roller arranged on the base 1, the belt roller is connected by a belt, a forward and reverse motor is arranged on the outside of the base 1, and the output shaft of the forward and reverse motor is connected to the belt roller.

[0036] The present invention also provides a method for crushing rubber raw materials, which is performed using the above-mentioned rubber raw material crushing device and comprises:

[0037] 1. Add raw materials into the shell 2;

[0038] 2. Use the cam and the friction wheel to drive the screening frame 16 to reciprocate in the frame 13;

[0039] 3. The screened crushed raw materials are transported to the collection box 8 through the belt conveyor 7;

[0040] 4. Pull out the screen 17 and make the belt conveyor 7 reverse the conveyance to convey the insufficiently crushed raw materials into the lifting box 11;

[0041] 5. The cylinder 10 is used to lift the material lifting box 11 to a certain height, and the cover plate 12 is turned over, so that the raw materials in the material lifting box 11 slide from the cover plate 12 to the guide plate 5, and enter the shell 2 to be crushed again.

[0042] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0044] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A rubber raw material crushing device, characterized in that: The rubber raw material crushing device comprises a base (1), a crusher is arranged on the base (1), a screening mechanism is arranged below the crusher, and a belt conveyor (7) is arranged below the screening mechanism; The screening mechanism comprises a frame (13) arranged at the lower end of the outer shell (2) of the crusher, a screening frame (16) being slidably arranged in the frame (13), a first opening being arranged on one side of the screening frame (16), a screen (17) being slidably arranged in the first opening, a second opening being arranged on the side of the frame (13), the screen (17) at least partially passing through the second opening, a collecting box (8) being arranged at one end of the belt conveyor (7), a bracket (9) being arranged at the other end, a lifting box (11) being arranged on the bracket (9) being displaceable up and down, an opening being arranged on one side of the lifting box (11), a cover plate (12) being hinged on the opening, a material guide plate (5) being arranged at the opening at the upper end of the outer shell (2), and the cover plate (12) being turned over so that the raw materials in the lifting box (11) can slide from the cover plate (12) to the material guide plate (5).

2. The rubber raw material crushing device according to claim 1, characterized in that: The cover plate (12) is provided with a buckle, and the material lifting box (11) is provided with a hook that matches the buckle.

3. The rubber raw material crushing device according to claim 2, characterized in that: A cylinder (10) is arranged at the upper end of the bracket (9), a vertical groove is formed on the side of the bracket (9), and sliders are arranged at both ends of the lifting box (11), and the sliders pass through the vertical grooves and are connected to the output shaft of the cylinder (10).

4. The rubber raw material crushing device according to claim 3, characterized in that: The bottom of the material lifting box (11) is in the form of an inclined structure, and the lower end of the inclined structure is close to the cover plate (12).

5. The rubber raw material crushing device according to claim 4, characterized in that: Two groups of crushing rollers (4) are rotatably arranged in the outer shell (2), the rotating shafts of the crushing rollers (4) extend out of the outer shell (2) and are connected to gears (6), the two gears (6) are meshed with each other, a first motor (3) is arranged on the side of the outer shell (2), and the output shaft of the first motor (3) is coaxially connected to the crushing rollers (4).

6. The rubber raw material crushing device according to claim 5, characterized in that: A pressing cylinder (15) is provided on the screening frame (16), so that the pressing cylinder (15) can press the screen (17) onto the screening frame (16).

7. The rubber raw material crushing device according to claim 6, characterized in that: One end of the screening frame (16) is connected to the frame body (13) via a spring (14), and the other end is provided with a slide rod (18), and the end of the slide rod (18) is provided with a contact wheel. A second motor (20) is provided on the base (1), and the output shaft of the second motor (20) is connected to a cam (19), and the cam (19) is in contact with the contact wheel.

8. The rubber raw material crushing device according to claim 7, characterized in that: The belt conveyor (7) comprises a belt roller arranged on the base (1), the belt roller being connected via a belt, a forward and reverse motor being arranged outside the base (1), and an output shaft of the forward and reverse motor being connected to the belt roller.

9. A method for crushing rubber raw materials, characterized in that: The rubber raw material crushing method is carried out using the rubber raw material crushing device according to claim 8, comprising: 1) Adding raw materials into the housing (2); 2) using the cam and the abutment wheel to drive the screening frame (16) to reciprocate in the frame (13); 3) The screened crushed raw materials are transported to a collection box (8) via a belt conveyor (7); 4) pulling out the screen (17) and making the belt conveyor (7) convey in the reverse direction to convey the insufficiently crushed raw materials into the lifting box (11); 5) The lifting box (11) is lifted to a certain height by using the cylinder (10), and the cover plate (12) is turned over, so that the raw materials in the lifting box (11) slide from the cover plate (12) to the guide plate (5), and enter the shell (2) to be crushed again.

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