A compression device for a compression-type internal mixer

Abstract

The utility model discloses a kind of pressing devices of tight pressure internal mixer, including briquetting, for driving briquetting to enter or leave internal mixing chamber pressure material cylinder and for connecting briquetting and the connecting rod body of pressure material cylinder working end, connecting rod body includes first rod body and second rod body, first rod body and second rod body are axially slidingly connected, the inside of first rod body is provided with threaded rod, the inside of second rod body is provided with the threaded hole channel matched with threaded rod, threaded rod second end is extended to the threaded hole inside of second rod body through guide block, first bevel gear is fixedly sleeved on threaded rod, the outside of first rod body is provided with the second bevel gear engaged with first bevel gear, the pressing device of tight pressure internal mixer in the utility model is provided with scalable connecting rod body between briquetting and pressure material cylinder, when briquetting is jammed, by manually adjustable contractible connecting rod body, briquetting is removed from internal mixing chamber, the condition or hydraulic failure of internal mixing chamber is checked.

Description

Technical Field

[0001] This utility model relates to the field of rubber production equipment technology, and in particular to a pressing device for a compaction mixer. Background Technology

[0002] The internal mixer is a key piece of equipment in rubber product manufacturing, primarily used for mixing, plasticizing, and dispersing rubber materials. Its core working part is the mixing chamber, typically composed of a pair of rotors and a sealed cavity. During the mixing process, a pressure block (also known as a top bolt or weight) is usually installed at the top of the mixing chamber to apply pressure to the rubber compound, improving mixing efficiency and uniformity. Driven by a hydraulic system, the pressure block moves up and down during mixing to compact and seal the material, preventing spillage and improving mixing effectiveness. However, in actual production, the pressure block operates in a harsh environment, subjected to prolonged high temperature, high pressure, and the adhesive effect of rubber materials. This can easily lead to increased friction between the pressure block and the mixing chamber wall, resulting in jamming. Once the pressure block jams, the hydraulic system may automatically stop due to overload. Since the pressure block is located inside the mixing chamber, the internal condition is difficult to observe directly, making fault detection inconvenient. Utility Model Content

[0003] This invention addresses the difficulty in observing the internal state of a rubber internal mixer when the pressing block gets stuck. It proposes a pressing device for a compaction mixer, which includes a connecting rod between the pressing block and the pressing cylinder to allow for manual adjustment of the pressing block's position. This allows the pressing block to exit the mixing chamber in case of a malfunction, facilitating observation of the mixing chamber.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pressing device for a compaction mixer includes a pressing block, a pressing cylinder for driving the pressing block into or out of the mixing chamber, and a connecting rod for connecting the pressing block and the working end of the pressing cylinder. The connecting rod includes a first rod and a second rod. The first end of the first rod is fixedly connected to the working end of the pressing cylinder, and the first end of the first rod is axially slidably connected to the first end of the second rod. The second end of the second rod is fixedly connected to the pressing block. The first rod is hollow, and the first end of the second rod extends into the interior of the first rod. A guide block is fixedly connected to the first end of the second rod. A threaded rod is provided inside the first rod, and a threaded hole matching the threaded rod is provided inside the second rod. The second end of the threaded rod extends through the guide block into the threaded hole of the second rod. The first end of the threaded rod is fixedly connected to the first rod. A first bevel gear is fixedly sleeved on the threaded rod. A second bevel gear is rotatably connected to the outside of the first rod via a rotating shaft, and the second bevel gear meshes with the first bevel gear.

[0006] Preferably, at least one side of the guide block is provided with a second insertion hole, and the second end side of the first rod is provided with a first insertion hole corresponding to the position of the second insertion hole. The first positioning screw passes through the first insertion hole and the second insertion hole in sequence to form a limit between the guide block and the first rod.

[0007] Preferably, the rocker arm is provided with at least one third socket, and the first rod body is provided with a fourth socket corresponding to the position of the third socket. The second positioning screw passes through the third socket and the fourth socket in sequence to form a limit between the rocker arm and the first rod body.

[0008] Preferably, the first end side of the first rod is provided with a fifth insertion hole corresponding to the position of the second insertion hole, and the third positioning screw passes through the fifth insertion hole and the second insertion hole in sequence to form a limit between the guide block and the first rod.

[0009] Preferably, a cover is provided on the outside of the first rod body and the second bevel gear, and the fourth insertion hole is located on the side of the cover.

[0010] Preferably, a rocker arm is provided at the end of the rotating shaft, one end of the rocker arm is fixedly connected to the rotating shaft, and the other end of the rocker arm is fixedly connected to a handle.

[0011] Preferably, the internal horizontal cross-section of the first rod is polygonal, and the horizontal cross-section of the guide block matches the internal horizontal cross-section of the first rod.

[0012] The beneficial effects of this utility model are:

[0013] 1. The pressing device of this compaction mixer has a telescopic connecting rod between the pressing block and the pressing cylinder. During normal pressing, the connecting rod is in the extended state, and the pressing cylinder carries the pressing block for normal pressing. When the pressing block gets stuck, the action of the pressing cylinder can be stopped immediately. The pressing block can be removed from the mixing chamber by manually retracting the connecting rod to check the condition of the mixing chamber or hydraulic failure.

[0014] 2. The connecting rod of the pressing device of this compaction mixer includes a first rod and a second rod. The second rod can be retracted into the first rod to realize the retraction of the connecting rod. A rocker arm is provided on the outside of the first rod, and the retraction of the connecting rod is realized by manually turning the rocker arm, which is convenient to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the pressing device of this compaction mixer;

[0016] Figure 2 This is a structural schematic diagram of the cross-section of the pressing device of this compaction mixer (with the connecting rods in an extended state);

[0017] Figure 3This is a structural schematic diagram of the cross-section of the pressing device of this compaction mixer (with the connecting rods in a contracted state);

[0018] Figure 4 This is a schematic diagram of the pressing device of this compaction mixer during the pressing process;

[0019] Figure 5 This is a schematic diagram of the structure of the pressing device of this compaction mixer during the troubleshooting of a pressing failure.

[0020] In the diagram: 1. Pressure cylinder; 2. Support; 3. First rod; 4. Second rod; 5. Pressure block; 6. Guide block; 7. Threaded rod; 8. First bevel gear; 9. Second bevel gear; 10. Mixing chamber; 11. Shaft; 12. Rocker arm; 13. Handle; 14. First positioning screw; 15. Second positioning screw; 16. Cover; 17. Third positioning screw;

[0021] 31. First socket; 32. Fifth socket; 41. Threaded channel; 61. Second socket; 121. Third socket; 161. Fourth socket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-3 A pressing device for a compaction mixer includes a pressing cylinder 1, a pressing block 5, and a connecting rod. The connecting rod connects the pressing cylinder 1 and the pressing block 5. Specifically, the pressing cylinder 1 is fixedly connected to the frame of the mixer via a bracket 2. The lower end of the pressing cylinder 1 is the working end, which is fixedly connected to the first end of the connecting rod. The second end of the connecting rod is fixedly connected to the pressing block 5. The pressing cylinder 1 drives the pressing block 5 to move up and down, allowing the pressing block 5 to enter or leave the mixing chamber 10. (Reference) Figure 4 The pressure block 5 is used to match the upper opening of the mixing chamber 10 to achieve a top seal of the mixing chamber 10.

[0024] The aforementioned connecting rod includes a first rod 3 and a second rod 4, the axes of which are parallel to the axis of the pressure cylinder 1. The first end of the first rod 3 is fixedly connected to the working end of the pressure cylinder 1, and the first end of the first rod 3 is axially slidably connected to the first end of the second rod 4. The second end of the second rod 4 is fixedly connected to the pressure block 5. The first rod 3 is hollow, the first end of the second rod 4 extends into the interior of the first rod 3, and the second rod 4 can retract into the interior of the first rod 3, thus achieving the retraction of the connecting rod.

[0025] Furthermore, a guide block 6 is fixedly connected to the first end of the second rod 4, and the guide block 6 can move along the axial direction of the first rod 3. The horizontal cross-section of the guide block 6 matches the internal horizontal cross-section of the first rod 3, and the inner wall of the first rod 3 can guide the axial movement of the guide block 6. The internal horizontal cross-section of the first rod 3 is polygonal to prevent the guide block 6 from rotating relative to the first rod 3. In this embodiment, the internal horizontal cross-section of the first rod 3 is rectangular.

[0026] Furthermore, the first rod body 3 has a threaded rod 7 inside, and the second rod body 4 has a threaded channel 41 inside. The threaded channel 41 extends from the first end to the second end of the second rod body 4, and the threaded channel 41 matches the threaded rod 7. The first end of the threaded rod 7 is fixedly connected to the first rod body 3, and the second end of the threaded rod 7 extends through the guide block 6 into the threaded channel 41 of the second rod body 4. The guide block 6 can be threadedly connected to the threaded rod 7. Rotation of the threaded rod 7 can cause axial movement of the guide block 6 and the second rod body 4, allowing the second rod body 4 to extend out of or retract into the first rod body 3.

[0027] A first bevel gear 8 is fixedly sleeved on the threaded rod 7, and a second bevel gear 9 is disposed on the outside of the first rod body 3, meshing with the first bevel gear 8. A cover 16 is provided on the first rod body 3, enclosing the first bevel gear 8 and the second bevel gear 9 to isolate dust from the air. The cover 16 is fixedly connected to the first rod body 3, and a rotating shaft 11 is rotatably connected to the outside of the cover 16. One end of the rotating shaft 11 is rotatably connected to the cover 16, and the second bevel gear 9 is fixedly sleeved on the rotating shaft 11. The other end of the rotating shaft 11 is rotatably connected to a rocker arm 12, which can drive the second bevel gear 9 and the first bevel gear 8 to rotate, thus rotating the threaded rod 7.

[0028] Furthermore, one end of the rocker arm 12 is fixedly connected to the rotating shaft 11, and the other end of the rocker arm 12 is fixedly connected to the handle 13, which facilitates the operation of the rocker arm 12 by the staff.

[0029] Furthermore, the four sides of the guide block 6 are respectively provided with second insertion holes 61, and the second end side of the first rod body 3 is provided with a first insertion hole 31, with the positions of the first insertion hole 31 and the second insertion hole 61 corresponding. The first insertion hole 31 is a through hole, and the second insertion hole 61 is a threaded hole. This pressing device is equipped with a first positioning screw 14, which matches the second insertion hole 61. The first positioning screw 14 can pass through the first insertion hole 31 and be threadedly connected to the second insertion hole 61, forming a limit between the guide block 6 and the first rod body 3, maintaining the extended state of the connecting rod.

[0030] Furthermore, the rocker arm 12 is provided with a third insertion hole 121, and the cover 16 of the first rod body 3 is provided with a fourth insertion hole 161. When the connecting rod is in the extended state, the fourth insertion hole 161 corresponds to the third insertion hole 121. The third insertion hole 121 is a through hole, and the fourth insertion hole 161 is a threaded hole. This pressing device is equipped with a second positioning screw 15, which matches the fourth insertion hole 161. The second positioning screw 15 can pass through the third insertion hole 121 and be threadedly connected to the fourth insertion hole 161, forming a limit between the rocker arm 12 and the first rod body 3, and maintaining the stability of the position of the rocker arm 12.

[0031] The first end of the first rod 3 is also provided with a fifth insertion hole 32. When the connecting rod is in the retracted state, the fifth insertion hole 32 corresponds to the position of the second insertion hole 61. The fifth insertion hole 32 is a through hole. This pressing device is equipped with a third positioning screw 17, which matches the second insertion hole 61. The third positioning screw 17 can pass through the fifth insertion hole 32 and be threaded into the second insertion hole 61, forming a limit between the guide block 6 and the first rod 3, keeping the connecting rod in the retracted state.

[0032] The working process of the pressing device of this compaction mixer is as follows:

[0033] When the pressing device is working normally, the connecting rod is in the extended state, refer to Figure 2 At this time, the guide block 6 is located at the second end of the first rod 3, that is, the guide block 6 is at its lower limit position. At this time, the first positioning screw 14 forms a limit between the guide block 6 and the first rod 3, maintaining the extended state of the connecting rod. Simultaneously, the second positioning screw 15 forms a limit between the rocker arm 12 and the first rod 3, maintaining the stability of the rocker arm 12's position. (Reference) Figure 4 The pressure cylinder 1 can drive the connecting rod and the pressure block 5 to move. The connecting rod is in an extended state, and the pressure block 5 moves in position in accordance with the working state of the internal mixer.

[0034] When the pressure block 5 of the pressure device jams, immediately stop the action of the pressure cylinder 1, remove the first positioning screw 14 and the second positioning screw 15, and rotate the rocker arm 12 through the handle 13. The rocker arm 12 can drive the second bevel gear 9 and the first bevel gear 8 to rotate, thereby rotating the threaded rod 7. The rotation of the threaded rod 7 can cause the guide block 6 and the second rod body 4 to move axially upward, so that the second rod body 4 retracts into the first rod body 3. When the guide block 6 moves to the first end of the first rod body 3, that is, when the guide block 6 is at the upper limit position, refer to Figure 5 At this time, the connecting rod is in a retracted state, the fifth insertion hole 32 corresponds to the second insertion hole 61, and the third positioning screw 17 can form a limit between the guide block 6 and the first rod body 3, maintaining the retracted state of the connecting rod. The pressure block 5 is removed from the mixing chamber 10, making it convenient for staff to check the condition of the mixing chamber 10 or hydraulic failures.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pressing device for a compaction mixer, comprising a pressing block (5) and a pressing cylinder (1) for driving the pressing block (5) into or out of the mixing chamber (10), characterized in that, It also includes a connecting rod for connecting the pressure block (5) and the working end of the pressure cylinder (1). The connecting rod includes a first rod (3) and a second rod (4). The first end of the first rod (3) is fixedly connected to the working end of the pressure cylinder (1). The first end of the first rod (3) is axially slidably connected to the first end of the second rod (4). The second end of the second rod (4) is fixedly connected to the pressure block (5). The first rod (3) is hollow. The first end of the second rod (4) extends into the interior of the first rod (3). A guide block (6) is fixedly connected to the first end of the second rod (4). The first rod body (3) is provided with a threaded rod (7) inside, and the second rod body (4) is provided with a threaded channel (41) that matches the threaded rod (7) inside. The second end of the threaded rod (7) extends through the guide block (6) into the threaded channel (41) of the second rod body (4). The first end of the threaded rod (7) is fixedly connected to the first rod body (3). A first bevel gear (8) is fixedly sleeved on the threaded rod (7). A second bevel gear (9) is rotatably connected to the outside of the first rod body (3) through a rotating shaft (11). The second bevel gear (9) meshes with the first bevel gear (8).

2. The pressing device of the compaction mixer according to claim 1, characterized in that, At least one side of the guide block (6) is provided with a second insertion hole (61), and the second end side of the first rod (3) is provided with a first insertion hole (31) corresponding to the position of the second insertion hole (61). The first positioning screw (14) passes through the first insertion hole (31) and the second insertion hole (61) in sequence to form a limit between the guide block (6) and the first rod (3).

3. The pressing device of the compaction mixer according to claim 2, characterized in that, A rocker arm (12) is provided at the end of the rotating shaft (11). One end of the rocker arm (12) is fixedly connected to the rotating shaft (11), and the other end of the rocker arm (12) is fixedly connected to a handle (13).

4. The pressing device of the compaction mixer according to claim 3, characterized in that, The rocker arm (12) is provided with at least one third socket (121), and the first rod body (3) is provided with a fourth socket (161) corresponding to the position of the third socket (121). The second positioning screw (15) passes through the third socket (121) and the fourth socket (161) in sequence to form a limit between the rocker arm (12) and the first rod body (3).

5. The pressing device of the compaction mixer according to claim 4, characterized in that, The first end side of the first rod (3) is provided with a fifth insertion hole (32) corresponding to the position of the second insertion hole (61). The third positioning screw (17) passes through the fifth insertion hole (32) and the second insertion hole (61) in sequence to form a limit between the guide block (6) and the first rod (3).

6. The pressing device of the compaction mixer according to claim 5, characterized in that, The first rod (3) is provided with a cover (16) outside the first bevel gear (8) and the second bevel gear (9), and the fourth insertion hole (161) is located on the side of the cover (16).

7. The pressing device of the compaction mixer according to claim 6, characterized in that, The internal horizontal cross section of the first rod (3) is polygonal, and the horizontal cross section of the guide block (6) matches the internal horizontal cross section of the first rod (3).

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