CN218557631U - Material pressing combined structure of internal mixer - Google Patents

Abstract

The utility model discloses a material pressing combination structure of an internal mixer, which belongs to the technical field of internal mixer accessories and comprises a material pressing block; a sealing seat; a connecting rod; a limit nut; the piston is fixedly sleeved on the connecting rod, the piston is clamped on the sealing seat and can freely slide up and down, a buffer cavity is enclosed between the piston and the top surface of the material pressing block, and an elastic element which elastically props against the piston is arranged in the buffer cavity; and the detection unit is used for detecting the moving stroke of the piston. Through the arrangement of the buffer cavity and the elastic element, when the material pressing block is used for pressing materials, when the reaction force of raw materials is large, the material pressing block can move relative to the connecting rod, namely, the material pressing block can have buffering function, the moving stroke of the piston can be detected through the arrangement of the detection unit, when the moving stroke threshold value is reached, the hydraulic rod can be controlled by the external controller to stop, and the hydraulic rod is prevented from being greatly abraded.

Description

Material pressing combined structure of internal mixer

Technical Field

The utility model relates to a banbury mixer accessory technical field specifically is a banbury mixer presses material integrated configuration.

Background

The closed rubber mixing machine is called as internal mixer, also called as kneading machine, and is mainly used for plastication and mixing of rubber. The internal mixer is a machine which is equipped with a pair of rotors with specific shapes and can be relatively rotated, and can be used for plasticating and mixing polymer material in a clearance mode under the closed state of adjustable temperature and pressure, and is mainly formed from internal mixing chamber, rotor sealing device, feeding and pressing device, discharging device, driving device and machine base.

Through retrieving chinese patent No. CN212372458U discloses an internal mixer for EPDM rubber processing, which comprises a base, the side fixed mounting of base has the sealed piece of side, the screw thread has cup jointed fixing bolt on the sealed piece of side, the fixed cover in bottom of base has been connected down and has been tied the seat, the banburying chamber has been seted up at the middle part of base, the fixed banburying rotor that has cup jointed in middle part of banburying chamber, the fixed pressure feed cylinder that has cup jointed in top of base, the fixed hydraulic motor that has installed in top of last pressure feed cylinder, the fixed hydraulic stem that has cup jointed in bottom of hydraulic motor, the fixed material pressing piece that has cup jointed in bottom of hydraulic stem, the fixed union coupling that has pressed the feed cylinder has connect the material pipe, the fixed material pushing rod that has cup jointed in bottom of feed pipe, the fixed material pushing rod's top has cup jointed the scraping wings.

Above-mentioned banbury mixer among the prior art is when the processing operation, it presses the material to the indoor raw materials of banburying to promote the pressure flitch through the hydraulic stem extension, namely, carry out the stopper by force through hydraulic pressure power, because the stroke that the hydraulic stem is flexible at every turn is fixed, and the raw materials accumulation volume in the banburying is not fixed, just so lead to when the raw materials accumulation volume is great, the hydraulic stem receives raw materials reaction force great, and then produce the damage to the sealing element in the hydraulic stem easily, for example, can be to the cylinder liner inner wall of hydraulic stem, the piston leads to the fact the strain, perhaps cause the cylinder liner to warp etc., and then reduced hydraulic unit's life.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, a banbury mixer presses material integrated configuration is provided, in order to solve the above-mentioned technical problem, the utility model provides a following technical scheme:

the utility model provides a: an internal mixer press composite structure comprising:

the material pressing block is clamped in the banburying chamber and can freely slide up and down;

the sealing seat with a hollow inner part is fixedly connected to the top of the material pressing block;

the connecting rod vertically and slidably penetrates through the sealing seat and the material pressing block, the upper end of the connecting rod is in driving connection with a hydraulic rod arranged at the top of the banburying chamber, and the lower end of the connecting rod penetrates through the material pressing block and is fixedly sleeved with a limiting nut;

the piston is fixedly sleeved on the connecting rod, the piston is clamped on the sealing seat and can freely slide up and down, a buffer cavity is enclosed between the piston and the top surface of the material pressing block, and an elastic element which elastically abuts against the piston is arranged in the buffer cavity;

and the detection unit is used for detecting the moving stroke of the piston.

In the above internal mixer pressing combination structure, the detecting unit includes:

the mounting column is vertically and fixedly connected to the piston and can penetrate out of the top of the sealing seat in a sliding manner;

the induction block is connected to one end, penetrating out of the sealing seat, of the mounting column;

and the proximity switch is connected to the top of the sealing seat and is matched with the induction block for use.

In the above compacting combined structure of the internal mixer, the periphery of the compacting block is provided with the downward extending annular protrusion, and the inner diameter of the annular protrusion is gradually decreased from top to bottom.

In the above compacting combined structure of the internal mixer, a dynamic seal ring is embedded in the compacting block, and the dynamic seal ring is movably sleeved on the connecting rod.

In the above compacting combined structure of the internal mixer, the sealing ring is sleeved on the compacting block.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up cushion chamber and elastic element for pressing the material piece when pressing the material, receive raw materials reaction force when great, press the material piece will produce relative movement with the connecting rod, promptly, press the material piece can have the buffering, and through setting up the detecting element, can detect the displacement stroke of piston, when reaching the displacement stroke threshold value, can be by external control ware control hydraulic stem stop motion, avoid producing great wearing and tearing to the hydraulic stem, slide in the cushion chamber through the piston in addition, make the air in the cushion chamber produce the resistance to the piston, and cooperate elastic element's flexible, realize the dual buffering to pressing the material piece.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of an assembly structure of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

In the figure: 1-hydraulic rod, 2-mixing chamber, 3-guide column, 4-connecting rod, 5-sealing seat, 6-spring, 7-dynamic sealing ring, 8-pressing block, 9-annular protrusion, 10-limiting nut, 11-induction block, 12-mounting column, 13-proximity switch, 14-sealing ring and 15-piston.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-2, the present embodiment provides a technical solution: a banbury mixer pressing combined structure is disclosed, a hydraulic rod 1 is vertically screwed on the top of a banburying chamber 2 of the banbury mixer, an expansion link of the hydraulic rod 1 can be penetrated into the banburying chamber 2 in a sliding way, in addition, a connecting rod 4 is screwed on the expansion link of the hydraulic rod 1, a pressing block 8 capable of sliding up and down is clamped in the banburying chamber 2, a sealing seat 5 is welded on the top of the pressing block 8, the sealing seat 5 is hollow, in addition, the connecting rod 4 vertically penetrates through the sealing seat 5 and the pressing block 8, and the connecting rod 4 can vertically and freely slide on the sealing seat 5 and the pressing block 8, a limit nut 10 is sleeved on the lower end of the connecting rod 4 in a threaded way, the limit nut 10 is used for limiting the pressing block 8, in addition, a piston 15 is fixedly sleeved on one end of the connecting rod 4 penetrating into the sealing seat 5, the piston 15 is clamped in the sealing seat 5, and forms a sealed buffer cavity with the top surface of the pressing block 8, thus, when the piston 15 moves towards the material pressing block 8, air in the buffer cavity generates air resistance to the piston 15, in addition, the connecting rod 4 is also sleeved with the spring 6, two ends of the elastic direction of the spring 6 respectively elastically abut against the material pressing block 8 and the piston 15, so that when the piston 15 moves downwards, the spring 6 can also generate resistance to the piston 15, when the telescopic rod of the hydraulic rod 1 extends, the material pressing block 8 moves downwards and extrudes raw materials in the banburying chamber 2, when the accumulation amount of the raw materials is large, the resistance borne by the material pressing block 8 is also increased, but the telescopic stroke of the hydraulic rod 1 is fixed, so that the material pressing block 8 and the piston 15 relatively move, at the moment, the piston 15 moves downwards in the sealing seat, the air in the buffer cavity and the spring buffer the piston, and the resistance is prevented from directly acting on the hydraulic rod 1, damage to sealing elements, such as cylinder liners and the like, in the hydraulic rod 1;

because the accumulation amount of the raw materials in the mixing chamber 2 may be too large, when the expansion stroke of the hydraulic rod 1 is not in place and the buffer state of the pressure block 8 fails (i.e., the piston moves downward and moves in place, and the spring compresses in place), and at this time, when the expansion rod of the hydraulic rod 1 continues to extend again, the hydraulic rod 1 is greatly damaged, in this embodiment, an installation mounting column 12 is welded on the upper end face of the piston 15, the installation mounting column 12 is perpendicular to the end face of the piston 15 and slidably penetrates through the top of the seal seat 5, in addition, the installation column 12 can freely slide on the seal seat 5, one end of the installation column 12 penetrating through the seal seat 5 is connected with an induction block 11 through a support, the top of the seal seat 5 is also provided with an approach switch 13 through a fixed support, the approach switch 13 is used in cooperation with the induction block 11, in an initial state, the proximity switch 13 and the induction block 11 have a larger distance, as mentioned above, when the raw materials in the mixing chamber are pressed, the piston slides downwards to reach the target position, and the spring is compressed to reach the target position, the induction block 11 moves downwards and enters the induction range of the proximity switch 13, at this time, the proximity switch 13 generates an induction signal, and the induction signal is fed back to an external controller through a cable or a wireless transmission module, the external controller controls the electromagnetic valve of the hydraulic rod 1 to act, so that the telescopic rod of the hydraulic rod 1 stops extending, and further the extending action of the hydraulic rod 1 stops immediately, so as to avoid damage caused by continuous extension, in addition, a cable penetrating hole can be formed at the top of the sealing seat, so that the cable of the proximity switch 13 can penetrate through the cable penetrating hole and be connected with the external controller, and certainly, a through hole is also formed at the top of the mixing chamber for the cable to penetrate through;

because the piston 15 needs to form a sealing state with the buffer cavity, in the embodiment, a sealing ring mounting groove is formed in the outer periphery of the piston 15, the sealing ring 14 is sleeved in the sealing ring mounting groove, and the sealing state between the piston and the inner wall of the sealing seat is improved by arranging the sealing ring 14;

when the pressing block 8 presses the raw material in the mixing chamber, the pressing effect of the pressing block 8 is affected after the raw material is attached to the inner wall of the mixing chamber, so in the embodiment, the annular protrusion 9 extending downwards is arranged on the periphery of the pressing block 8, the inner diameters of the annular protrusion 9 are sequentially decreased from top to bottom, and when the annular protrusion 9 moves downwards along with the pressing block 8, the raw material attached to the inner wall of the mixing chamber is cut, and then the raw material is scraped off, so that the pressing effect of the pressing block is avoided being affected;

because press the briquetting 8 when pressing the material, receive that raw materials reaction force is great and the internal mixing room raw materials accumulational region is different, for example certain regional accumulation volume of internal mixing room is great, the resistance that presses 8 bottom surfaces of briquetting to receive is also different this moment, cause piston periphery and seal receptacle inner wall wearing and tearing to increase very easily, therefore in this embodiment, through pressing 8 tops of briquetting to follow two at least guide posts 3 of the vertical connection of its axial array, two guide posts 3 are vertical to wear out internal mixing room 2, reciprocate pressing 8 briquetting through guide post 3 and lead to like this, avoid pressing the inconsistent and swing that produces of briquetting resistance, and then cause the great phenomenon of piston and seal receptacle inner wall wearing and tearing to produce.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides an internal mixer briquetting integrated configuration which characterized in that includes:

the pressing block (8) is clamped in the banburying chamber (2) and can freely slide up and down;

the sealing seat (5) with a hollow inner part is fixedly connected to the top of the material pressing block (8);

the connecting rod (4) vertically and slidably penetrates through the sealing seat (5) and the material pressing block (8), the upper end of the connecting rod (4) is in driving connection with a hydraulic rod (1) arranged at the top of the internal mixing chamber (2), and the lower end of the connecting rod (4) penetrates through the material pressing block (8) and is fixedly sleeved with a limiting nut (10);

the piston (15) is fixedly sleeved on the connecting rod (4), the piston (15) is clamped on the sealing seat (5) and can freely slide up and down, a buffer cavity is enclosed between the piston (15) and the top surface of the material pressing block (8), and an elastic element for elastically abutting against the piston (15) is arranged in the buffer cavity;

a detection unit for detecting the movement stroke of the piston (15).

2. The internal mixer press assembly structure of claim 1, wherein said detecting unit comprises:

the mounting column (12) is vertically fixedly connected to the piston (15) and can penetrate out of the top of the sealing seat (5) in a sliding manner;

the induction block (11) is connected to one end, penetrating out of the sealing seat (5), of the mounting column (12);

and the proximity switch (13) is connected to the top of the sealing seat (5) and is matched with the induction block (11) for use.

3. An internal mixer press combination as claimed in claim 1, wherein the peripheral edge of the press block (8) is provided with a downwardly extending annular protrusion (9), and the inner diameter of the annular protrusion (9) decreases from top to bottom.

4. A compacting composite set of an internal mixer according to claim 1, characterized in that the compacting block (8) is embedded with a dynamic seal ring (7), the dynamic seal ring (7) is movably sleeved on the connecting rod (4).

5. An internal mixer compacting assembly as claimed in claim 1, characterized in that said compacting blocks (8) are fitted with sealing rings (14).

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