Pressing mechanism of open mill

Abstract

The utility model discloses a material pressing mechanism of an open mill, which relates to the technical field of material pressing of open mills, and comprises a fixed frame, and the fixed frame is mounted on the side wall of the open mill through a mounting plate bolt at the bottom of the fixed frame; the other end of the fixing frame is fixedly connected with a protection frame; a hydraulic cylinder is fixedly mounted at the top end of the protection frame; the output end of the hydraulic cylinder slidably penetrates into the protection frame. A pressing plate is fixedly connected to the output end of the hydraulic cylinder; rectangular grooves are formed in the left and right sides of the inner wall of the protection frame; protection assemblies are arranged in the two rectangular grooves; the protection assembly comprises two protection plates; the two protection plates are rotationally arranged in the two rectangular grooves correspondingly. A supporting plate, a clamping rod, a shifting rod, a spring, a limiting block, a limiting hole and a reserved groove are arranged; when the material pressing plate needs to be used for material pressing operation, a worker does not need to make preparations in advance, after the material pressing operation is finished and the material pressing plate returns to the original position, the protection plate can return to the original position by poking the poking rod, operation is easy, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material pressing of a mixing mill, in particular to a material pressing mechanism of a mixing mill. Background Art

[0002] Open rubber mixer is the abbreviation of open rubber mixing mill. It is a kind of rubber mixing machine with exposed rollers used in rubber factories to prepare plasticized rubber, mixed rubber or for hot mixing and molding. When the open rubber mixing mill is in use, the rubber material will first be placed between two rollers, and then the pressing mechanism will be used to press the rubber material between the rollers downward.

[0003] A material pressing mechanism of an open mixing mill disclosed in Chinese patent CN217967798U includes a fixed frame, a hydraulic cylinder is fixedly and interpenetratingly connected to the top end thereof, a material pressing plate is arranged below the hydraulic cylinder, and a protective mechanism is used for dust protection of the material pressing plate, which includes a protective frame, a protective plate, a fixed plate and a limit frame. The material pressing plate is located inside the protective frame, and the protective plate is slidably arranged on the protective frame. One side of the protective plate is on the limit frame, and the top end of the protective frame is fixedly connected to the top end of the inner wall of the fixed frame. First through grooves are opened on both sides of the inner wall of the protective frame, and the protective plate is slidably and interpenetratingly connected to the inner cavities of the two first through grooves.

[0004] When using the above-mentioned pressing mechanism, the operator must pull out the protective plate in advance, release the position limit of the protective plate by pulling the limit frame, and then pull the pull plate to move the protective plate out of the protection frame before activating the hydraulic cylinder to press the material. After pressing the material, the protective plate must be moved to its original position and then limited. The operation steps are relatively cumbersome and reduce work efficiency.

[0005] In order to solve the above problems, the utility model proposes a material pressing mechanism for an open mixing mill. Utility Model Content

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a material pressing mechanism for an open mill, comprising a fixed frame, which is mounted on the side wall of the open mill through the mounting plate bolts at its bottom; a protective frame is fixedly connected to the other end of the fixed frame; a hydraulic cylinder is fixedly mounted on the top of the protective frame; the output end of the hydraulic cylinder slides through the interior of the protective frame; a material pressing plate is fixedly connected to the output end of the hydraulic cylinder; rectangular grooves are provided on the left and right sides of the inner wall of the protective frame; protective components are provided inside the two rectangular grooves; the protective component includes two protective plates; the two protective plates are rotatably arranged inside the two rectangular grooves respectively; and clamping components are provided on the left and right sides of the outer wall of the protective frame.

[0007] Preferably, the outer side of the pressing plate is slidably fitted with the inner wall of the protective frame.

[0008] Preferably, a fixed shaft is fixedly installed on the inner top of the rectangular groove; connecting blocks are rotatably installed on both ends of the fixed shaft; and one side of the protective plate is fixedly connected to the connecting block on the corresponding fixed shaft.

[0009] Preferably, a torsion spring is sleeved on each of the fixed shafts; one end of the torsion spring is fixedly connected to the protective plate, and the other end of the torsion spring is fixedly connected to the inner wall of the protective frame.

[0010] Preferably, the clamping assembly includes a support plate, the support plate is fixedly mounted on the bottom end of the outer wall of the protective frame; a clamping rod is slidably mounted on the support plate; the bottom end of the clamping rod is provided with an inclined surface; a shifting rod is fixedly mounted on the top end of the clamping rod; a spring is fixedly connected between the shifting rod and the support plate; and the spring is sleeved on the outside of the clamping rod;

[0011] A limit block is fixedly installed on the protective plate at a position corresponding to the clamping rod; a limit hole is provided on the limit block; the limit hole is plugged into and matched with the bottom end of the clamping rod; a reserved groove is provided at the bottom end of the protective frame corresponding to the lower side of the support plate; the reserved groove is slidably matched with the limit block.

[0012] Beneficial effects

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The material pressing mechanism of the mixing mill is provided with a support plate, a clamping rod, a shifting rod, a spring, a limit block, a limit hole and a reserved groove. When the material pressing plate is needed for material pressing operation, the staff does not need to make preparations in advance. After the material pressing operation is completed, when the material pressing plate returns to its original position, the shifting rod can be shifted to make the protective plate return to its original position. The operation is simple and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the protection frame of the utility model;

[0018] Figure 3 This is a partial cross-sectional structural diagram of the utility model;

[0019] Figure 4 For this utility model Figure 3 Enlarged schematic diagram of part A in the middle.

[0020] Figure numerals: 1. fixing frame; 2. mounting plate; 3. protection frame; 4. hydraulic cylinder; 5. pressing plate; 6. rectangular groove; 7. protective plate; 8. fixed shaft; 9. torsion spring; 10. support plate; 11. clamping rod; 12. shift rod; 13. spring; 14. limit block; 15. limit hole; 16. reserved groove. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] See also Figure 1-4 The utility model provides a technical solution: a material pressing mechanism for an open mill, comprising a fixed frame 1, which is bolted to the side wall of the open mill via a mounting plate 2 at its bottom. A protective frame 3 is fixedly connected to the other end of the fixed frame 1. A hydraulic cylinder 4 is fixedly mounted on the top of the protective frame 3. The output end of the hydraulic cylinder 4 slides through the interior of the protective frame 3. A material pressing plate 5 is fixedly connected to the output end of the hydraulic cylinder 4. The outer side of the material pressing plate 5 slides and fits in contact with the inner wall of the protective frame 3.

[0023] Rectangular grooves 6 are provided on the left and right sides of the inner wall of the protection frame 3. Protective components are provided inside the two rectangular grooves 6.

[0024] The guard assembly includes two guard plates 7. Each guard plate 7 is rotatably mounted within two rectangular slots 6. A fixed shaft 8 is fixedly mounted at the top end of each rectangular slot 6. Connecting blocks are rotatably mounted at each end of each fixed shaft 8. One side of the guard plate 7 is fixedly connected to the connecting block on the corresponding fixed shaft 8.

[0025] Furthermore, a torsion spring 9 is sleeved on each of the fixed shafts 8. One end of the torsion spring 9 is fixedly connected to the protective plate 7, and the other end of the torsion spring 9 is fixedly connected to the inner wall of the protective frame 3.

[0026] Snap-fit components are provided on both the left and right sides of the outer wall of the protection frame 3 .

[0027] The clamping assembly includes a support plate 10, which is fixedly mounted to the bottom end of the outer wall of the protective frame 3. A clamping rod 11 is slidably mounted on the support plate 10. The bottom end of the clamping rod 11 is inclined. A detent rod 12 is fixedly mounted on the top end of the clamping rod 11. A spring 13 is fixedly connected between the detent rod 12 and the support plate 10. The spring 13 is sleeved on the outside of the clamping rod 11.

[0028] A limit block 14 is fixedly mounted on the protective plate 7 at the position corresponding to the connecting rod 11. A limit hole 15 is defined in the limit block 14. The limit hole 15 engages with the bottom end of the connecting rod 11. A reserved slot 16 is defined at the bottom end of the protective frame 3, corresponding to the bottom of the support plate 10. The reserved slot 16 slides into the limit block 14.

[0029] Working principle:

[0030] In the initial state, the two protection plates 7 are parallel to the ground under the action of the torsion springs 9, so that the pressing plate 5 is placed in a closed space, thereby protecting the pressing plate 5 from dust.

[0031] When the pressing plate 5 needs to be used, the hydraulic cylinder 4 is started, and the hydraulic cylinder 4 pushes the pressing plate 5 to move downward. The pressing plate 5 moves downward to push the two protective plates 7 to flip over, and at the same time, the torsion spring 9 is deformed to obtain the force to restore its original shape; since the outer side of the pressing plate 5 fits the inner side of the protective frame 3, the pressing plate 5 continues to move downward and out of the protective frame 3, which will cause the protective plate 7 to flip ninety degrees and abut against the inside of the rectangular groove 6; at the same time, the limit block 14 moves to the outside of the protective frame 3 through the reserved groove 16.

[0032] In the process of the limit block 14 moving to the outside of the protective frame 3, the limit block 14 pushes the bottom end inclined surface of the clamping rod 11, thereby causing the clamping rod 11 to move upward, and the upward movement of the clamping rod 11 drives the spring 13 to extend; when the limit hole 15 on the limit block 14 moves to the corresponding position at the bottom end of the clamping rod 11, the spring 13 contracts and drives the clamping rod 11 to move downward, thereby causing the clamping rod 11 to be plugged into the limit hole 15, limiting the limit block 14, and then limiting the protective plate 7 inside the rectangular groove 6.

[0033] When the pressing operation of the pressing plate 5 is completed, the hydraulic cylinder 4 drives the pressing plate 5 to move upward. When the pressing plate 5 returns to its original position, the lever 12 is pushed upward. The lever 12 moves upward and drives the clamping rod 11 to move upward and out of the inside of the limit hole 15, thereby releasing the limit on the limit block 14, so that the protective plate 7 flips over under the action of the torsion spring 9, so that the protective plate 7 returns to its original position to protect the pressing plate 5 from dust.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A material pressing mechanism for a mixing mill, comprising a fixed frame (1), characterized in that: The fixing frame (1) is bolted to the side wall of the mixing mill through the mounting plate (2) at the bottom thereof; the other end of the fixing frame (1) is fixedly connected to a protection frame (3); a hydraulic cylinder (4) is fixedly installed on the top of the protection frame (3); the output end of the hydraulic cylinder (4) slides through the interior of the protection frame (3); a pressing plate (5) is fixedly connected to the output end of the hydraulic cylinder (4); rectangular grooves (6) are provided on both left and right sides of the inner wall of the protection frame (3); a protection assembly is provided inside the two rectangular grooves (6); the protection assembly includes two protection plates (7); the two protection plates (7) are rotatably provided inside the two rectangular grooves (6); and a clamping assembly is provided on both left and right sides of the outer wall of the protection frame (3).

2. The material pressing mechanism of a mixing mill according to claim 1, characterized in that: The outer side of the pressing plate (5) is slidably fitted with the inner wall of the protection frame (3).

3. The material pressing mechanism of a mixing mill according to claim 1, characterized in that: A fixed shaft (8) is fixedly mounted on the inner top of each rectangular slot (6); connecting blocks are rotatably mounted on both ends of the fixed shaft (8); and one side of the protective plate (7) is fixedly connected to the connecting block on the corresponding fixed shaft (8).

4. The material pressing mechanism of an open mixing mill according to claim 3, characterized in that: A torsion spring (9) is sleeved on each of the fixed shafts (8); one end of the torsion spring (9) is fixedly connected to the protective plate (7), and the other end of the torsion spring (9) is fixedly connected to the inner wall of the protective frame (3).

5. The material pressing mechanism of an open mixing mill according to claim 1, characterized in that: The clamping assembly comprises a support plate (10), the support plate (10) being fixedly mounted on the bottom end of the outer wall of the protection frame (3); a clamping rod (11) being slidably mounted on the support plate (10); the bottom end of the clamping rod (11) being arranged with an inclined surface; a shifting rod (12) being fixedly mounted on the top end of the clamping rod (11); a spring (13) being fixedly connected between the shifting rod (12) and the support plate (10); and the spring (13) being sleeved on the outside of the clamping rod (11); A limit block (14) is fixedly installed on the protective plate (7) at a position corresponding to the clamping rod (11); a limit hole (15) is provided on the limit block (14); the limit hole (15) is plugged into the bottom end of the clamping rod (11); a reserved groove (16) is provided at the bottom end of the protective frame (3) corresponding to the lower side of the support plate (10); the reserved groove (16) is slidably fitted into the limit block (14).

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