CN115320054B

CN115320054B - Bipyramid extrusion tablet press with return hopper structure

Info

Publication number: CN115320054B
Application number: CN202211252982.4A
Authority: CN
Inventors: 张志文; 张志璇
Original assignee: Jinjiang Shanshui Rubber & Plastic Machine Co ltd
Current assignee: Jinjiang Shanshui Rubber & Plastic Machine Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-02-10
Anticipated expiration: 2042-10-13
Also published as: CN115320054A

Abstract

The invention relates to the technical field of rubber machinery, in particular to a double-cone extrusion tablet press with a material returning hopper structure, which comprises a rack, wherein an extrusion mechanism, a tablet pressing mechanism and a discharging mechanism are arranged on the rack; the hopper device comprises a base, the base is internally penetrated up and down, a conical hopper is arranged at the top of the base, at least one extension frame is arranged on the side wall of the base, a driving piece is arranged on the extension frame, the inner side end of the driving piece is in transmission connection with an inserting plate, a sliding groove matched with the inserting plate is formed in the inner side wall of the base, and the driving piece can drive the inserting plate to move back and forth along the sliding groove to form a channel opening and closing switching mechanism. The invention is beneficial to solving the problem that the existing equipment does not have a material distribution function, and the front and rear rubber materials are locally mixed in the extrusion mechanism, so that the material mixing is not uniform.

Description

Bipyramid extrusion tablet press with return hopper structure

Technical Field

The invention relates to the technical field of rubber machinery, in particular to a double-cone extrusion tablet press with a material return hopper structure.

Background

In the processing process of rubber, the refined micelle needs to be put into a tablet press to be pressed into a sheet structure, the common tablet press in the market is a double-cone tablet press, the front end of the tablet press mechanism is provided with an extrusion mechanism with a double-cone pushing structure, and the micelle is put into the extrusion mechanism, mixed and extruded to the tablet press mechanism to be rolled into sheets to be output.

A split type conical twin-screw extrusion tablet press as disclosed in Chinese patent CN202121407871.7 comprises a frame, and a conical twin-screw extruder, a hydraulic power system, a linear guide rail and a hydraulic locking mechanism which are arranged on the frame, wherein: the conical double-screw extruder consists of a main screw, an auxiliary screw, a speed reducing motor, a roller and an extruder barrel. This equipment can make equipment when changing the material, makes things convenient for artifical clearance equipment inner chamber: the extruder cone-shaped machine barrel (containing a tablet press) is hydraulically moved forwards, the cone-shaped screw rod part is separated from the cone-shaped machine barrel, manual cleaning operation is facilitated, when rubber materials are cleaned, the cone-shaped machine barrel (containing the tablet press) is hydraulically moved to reset, the hydraulic locking device is locked, and the equipment is recovered to work, so that cleaning of materials is guaranteed, and pollution is avoided.

In the practical use process of the extrusion tablet press in the technical scheme, some defects still exist, for example, an extrusion mechanism with a conical double-screw structure can only perform one-way operation, namely, after the micelle is discharged from a top opening, the micelle is output through a tablet pressing mechanism after only one-time extrusion process, in order to improve the production efficiency, a batch of micelles is often connected with each other, the interval time between the front side and the back side is short, and the extrusion and the tablet pressing are continuously performed. Based on this, the applicant has conducted intensive studies on the above problems and has made the present invention.

Disclosure of Invention

The invention mainly aims to provide a double-cone extrusion tablet press with a material return hopper structure, which is beneficial to solving the problem that the existing equipment does not have a material distribution function, and the phenomenon of uneven material mixing caused by local mixing of front and rear rubber materials in an extrusion mechanism is avoided.

The invention provides a double-cone extrusion tablet press with a material return hopper structure, which is beneficial to solving the problems that the material return operation of a micelle on the extrusion tablet press is troublesome, time-consuming and labor-consuming in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that:

a bipyramid extrusion tablet press with a material returning hopper structure comprises a rack, wherein an extrusion mechanism, a tablet pressing mechanism and a discharging mechanism are arranged on the rack, a blanking port is arranged at the top of the extrusion mechanism, a material returning hopper mechanism is also arranged above the blanking port, the material returning hopper mechanism comprises a material returning device arranged between the blanking port and the discharging mechanism, and a hopper device arranged at the top of the blanking port, and the material returning device is used for conveying a micelle to be processed repeatedly into the hopper device;

the hopper device comprises a base, wherein the interior of the base penetrates through the base up and down to form a channel communicated with a blanking port, a conical hopper is arranged at the top of the base, at least one extension frame is arranged on the side wall of the base, a driving piece is arranged on the extension frame, the inner side end of the driving piece is in transmission connection with an inserting plate, a sliding groove matched with the inserting plate is arranged on the inner side wall of the base, and the driving piece can drive the inserting plate to move back and forth along the sliding groove to form a channel opening and closing switching mechanism;

the spout is equipped with a plurality of subregion of interconnect from inside to outside in the stroke range of picture peg, lies in the subregion of medial extremity and lies in the spout that the lateral extremity subregion all has the heavy groove structure of level, and the width of lateral extremity spout is greater than the width of medial extremity spout, and lies in the width of the spout in the subregion between medial extremity and the lateral extremity and from inside to outside crescent gradually, is equipped with hinge structure between picture peg and the driving piece, and this hinge structure can let the picture peg luffing motion.

On the basis of the technical scheme, in order to promote the control effect that opens and shuts of picture peg to the passageway for the reciprocating motion of picture peg is more reliable and more stable, the picture peg is horizontal plate body structure, but picture peg both sides slip inlay card in the spout.

On above-mentioned technical scheme's basis, in order to promote the picture peg speed that opens and shuts for the switching of opening and shutting of passageway is quick high-efficient more, the base both sides all are equipped with extend the frame, the extension frame medial extremity transmission respectively of both sides is connected with the picture peg, and the picture peg of both sides is after the inward movement, and the mutual butt of medial extremity constitutes a set of back drive's symmetry structure that opens and shuts.

On above-mentioned technical scheme's basis, in order to reduce the frictional force between picture peg and the spout for the activity of picture peg is level and smooth laborsaving more, alleviates drive element's operation burden, the picture peg both sides are equipped with the pulley, and pulley bottom and spout butt, picture peg removal in-process, the pulley can roll in the spout.

On the basis of the technical scheme, in order to facilitate the work of maintenance of the material returning structure, observation of daily material returning operation and the like of operators, a maintenance frame mechanism is arranged on one side of the rack and provided with a platform for the operators to climb.

On the basis of the technical scheme, in order to conveniently adjust the mounting angle of the hopper device and increase the high-efficiency smooth blanking action of the rubber material, the bottom of the base is provided with a hinged part, the bottom of the hinged part is hinged with a vertical screw rod, and the screw rod is fixedly connected with the rack through a nut.

Furthermore, in order to ensure that the hopper device can be kept fixed after the installation angle is adjusted, the screw rod is further connected with a limit nut, and the top of the limit nut is provided with a flange structure used for clamping the hinging part.

The beneficial effects of the invention at least comprise:

1. according to the invention, the hopper returning mechanism is arranged above the blanking port, and by utilizing the synergistic effect of the hopper returning device and the hopper device, when the sheeted sheet-shaped rubber material needs to be returned, an operator cuts the sheeted sheet-shaped rubber material and then places the sheeted sheet-shaped rubber material on the hopper returning device, so that the sheeted sheet-shaped rubber material is conveyed into the hopper device, the inserting plate on the hopper device can perform transfer control on the rubber material, and when the rubber material in the extruding mechanism is emptied, the driving piece is used for driving the inserting plate, so that the rubber material drops into the extruding mechanism for processing again. Therefore, the hopper device can buffer and discharge the rubber materials, so that the rubber materials in the front section and the rear section are staggered, and the phenomenon that the rubber materials are locally mixed in the extrusion mechanism and the mixing is uneven is avoided.

2. According to the invention, by arranging the material returning hopper mechanism, during material returning, an operator only needs to put the cut rubber material onto the material returning device, and does not need to climb the bracket to put the rubber material into the blanking port like the traditional processing mode, so that the problems of troublesome operation, time waste and labor waste of the existing material returning are solved.

3. According to the invention, through the arrangement of the unique sliding groove structure, the inner side end of the inserting plate can be declined after the inserting plate is opened, so that the guiding effect on the downward movement of the rubber material is achieved.

Drawings

FIG. 1 is a schematic diagram of a bi-cone tablet press according to one embodiment;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the hopper assembly of FIG. 1;

FIG. 4 is a cross-sectional view of the hopper assembly;

FIG. 5 is a schematic structural diagram of the material returning device in FIG. 1;

FIG. 6 is a side view of a hopper assembly according to another embodiment;

FIG. 7 is a schematic structural view of pulleys on two sides of a board plug in another embodiment;

FIG. 8 is a schematic view of a structure of an interposer in a state of being moved outward.

The figure is marked with: 100. a frame; 200. an extrusion mechanism; 300. a tablet pressing mechanism; 400. a discharging mechanism; 500. a return hopper mechanism; 510. a material returning device; 520. a hopper device; 600. a maintenance frame mechanism; 1. a base; 11. a channel; 12. a chute; 121. a first partition; 122. a second partition; 123. a third partition; 13. a hinge portion; 14. a screw; 15. a first nut; 16. a second nut; 2. a conical hopper; 3. an extension frame; 4. an oil cylinder; 41. a telescopic rod; 42. clamping the joint; 43. a steering knuckle; 5. inserting plates; 6. a return conveyer belt; 61. a material returning motor; 62. a support; 63. a clamping block; 64. drawing a beam; 7. a pulley.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description is made with reference to the accompanying drawings and detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Example 1, as shown in fig. 1 and 2, a double-cone extrusion tablet press with a return hopper structure includes a frame 100, an extrusion mechanism 200, a tablet mechanism 300, a discharge mechanism 400, a return hopper mechanism 500, and a maintenance frame mechanism 600.

Wherein, the frame 100 is located at the bottom and is formed by welding metal profiles, and mainly plays a role in bearing and supporting.

The extruding mechanism 200 adopts a biconical screw structure and is used for mixing and extruding and outputting the sizing material to one side, and the top of the extruding mechanism 200 is provided with a blanking port for feeding the sizing material. The sheeting mechanism 300 comprises two horizontal roller bodies distributed longitudinally, a gap is left between the two horizontal roller bodies, the gap is positioned outside the output end of the extrusion mechanism 200, and the sizing material output from the extrusion mechanism 200 passes through the gap and is rolled into a sheet structure by the upper roller body and the lower roller body. The extrusion mechanism 200 and the sheeting mechanism 300 are conventional in the art and will not be described in detail herein.

Discharging mechanism 400 is located the preforming mechanism 300 outside, and discharging mechanism 400 comprises a belt conveyor, and this belt conveyor bottom is equipped with lifting mechanism, and this lifting structure adopts the hydro-cylinder of vertical setting for discharging mechanism 400 can carry out height adjustment, in order to satisfy more operation demands.

The return hopper mechanism 500 includes a return device 510 and a hopper device 520. The material returning device 510 is located on one side of the blanking opening close to the discharging mechanism 400, and with reference to fig. 5, the material returning device 510 includes a material returning conveyer belt 6 which is obliquely arranged, the bottom end of the material returning conveyer belt is close to one side of the discharging mechanism 400, and the top end of the material returning conveyer belt is located right above the blanking opening. The bottom of the returning material conveying belt 6 is provided with two vertical supports 62, the bottom of the support 62 is sleeved on an straining beam 64, the support is fixedly connected with the straining beam 64 through a clamping block 63, the clamping block 63 abuts against the bottom of the support 62 when clamped, the clamping block is fixedly connected through bolts, a groove matched with the outline of the straining beam 64 is formed between the clamping block 63 and the bottom of the support 62, the straining beam 64, the support 62 and the returning material conveying belt 6 form a fixedly connected integrated structure in a clamping state, the straining beam 64 is horizontally arranged, and two ends of the straining beam are fixedly connected with a support frame of the tabletting mechanism 300 through bolts and supports. The material returning conveyer belt 6 is connected with a material returning motor 61 which is used as a driving power source of the material returning conveyer belt 6.

In the use, the material returning conveyer belt 6 can upwards lift and carry the sizing material, and the operation personnel only need put the sizing material that needs to do over to material returning conveyer belt 6, upwards carry to blanking mouth top by oneself by material returning conveyer belt 6, and the simple operation is laborsaving, need not the operation personnel and carries in by oneself and put in.

As shown in fig. 3, the hopper device 520 includes a base 1, a conical hopper 2, an extension frame 3, a driving member, and an insert plate 5.

The base 1 is a frame structure formed by welding metal sections and metal plates, and the interior of the frame structure penetrates through the base up and down to form a channel 11 for passing glue. The base 1 is installed and fixed on the top of the blanking port on the extruding mechanism 200 and mainly plays a role in bearing and supporting.

The cone bucket 2 is fixedly arranged at the top of the base 1, and the cone bucket 2 is of a cover body structure with a wide upper part and a narrow lower part and used for guiding rubber materials in the falling process, so that the falling prevention effect is achieved.

Further, referring to fig. 4, a horizontal sliding groove 12 is formed in the inner side wall of the base 1, the sliding groove 12 is of a sinking groove structure, and the left side and the right side of the sinking groove penetrate through the base 1 to form a horizontal guide channel 11.

The left side and the right side of the base 1 are fixedly provided with extension frames 3, the extension frames 3 are composed of metal sectional materials, and the extension frames 3 are used as mounting carriers of driving pieces.

The driving piece in the embodiment adopts the oil cylinder 4, the oil cylinder 4 is connected with an external oil pressure system, the oil cylinder 4 is horizontally arranged, the telescopic rod 41 of the oil cylinder is horizontally inward, and the inner side end of the telescopic rod 41 is fixedly connected with the inserting plate 5 through the clamping joint 42. The inner side end of the clamping joint 42 is provided with a slot matched with the inserting plate 5, and after the outer side end of the inserting plate 5 is inserted into the slot, the inserting plate is locked and fixed through a bolt vertical to the slot.

The inserting plate 5 is a horizontal plate structure and serves as a closed partition structure of the channel 11, and the front side and the rear side of the inserting plate 5 can be slidably clamped in the sliding grooves 12. Taking the movement of the board 5 at one side as an example, after the oil cylinder 4 drives the board 5 to move inwards by using the telescopic rod 41 of the oil cylinder, the board 5 can move horizontally inwards along the sliding grooves 12 due to the limiting guidance of the sliding grooves 12 at the front and rear sides, and after the stroke is finished, the inner ends of the board 5 are positioned at the center line of the channel 11 in the left and right directions, so that the boards 5 at the two sides synchronously move in opposite directions to form an opening and closing switching structure of the channel 11, and after the boards 5 at the two sides move inwards, the inner ends are finally abutted to close the channel 11; the inserting plates 5 on the two sides move outwards, and the inner side ends gradually move outwards, so that the channel 11 is in an opening state, and the rubber materials can fall conveniently. In addition, when in a closed state, the inserting plate 5 can also be used as a bearing platform for loading the sizing material, so that the buffering effect of the sizing material is achieved when the inserting plate is closed.

Furthermore, the slide groove 12 is provided with 2 partitions connected with each other from inside to outside in the stroke range of the inserting plate 5, the partition located at the inner side end and the slide groove 12 located at the outer side end are provided with horizontal sinking groove structures, the width of the slide groove 12 at the outer side end is larger than that of the slide groove 12 at the inner side end, the width of the slide groove 12 located in the partition between the inner side end and the outer side end is gradually increased from inside to outside, and a hinge structure is arranged between the inserting plate 5 and the driving part and can enable the inserting plate 5 to swing up and down. After the inserting plate 5 moves outwards, due to the fact that the width of the sliding groove 12 at the outer end is large, when the inner end of the inserting plate 5 moves outwards to the wide area at the outer side of the sliding groove 12, a movable gap is formed between the inserting plate 5 and the sliding groove 12, the inserting plate 5 can be declined when being pressed by top rubber, and the guiding effect on downward movement of the rubber can be achieved.

In the specific implementation process, when an operator finds that the flaked rubber has flaws and needs to be returned, the rubber is cut and then placed on the return conveyer belt 6, the rubber is conveyed to the top of the return conveyer belt 6 from the bottom of the return conveyer belt 6 and continuously moves and then falls into the cone hopper 2, the rubber is supported by the inserting plate 5 in the closed state, the buffer state is kept, and after the rubber in the extrusion mechanism 200 is extruded and emptied, the inserting plate 5 is driven by the oil cylinder 4 to move outwards, so that the rubber at the top falls into the extrusion mechanism 200 to be processed again.

In order to facilitate the maintenance of the material returning structure and the observation of the daily material returning operation by the operator, a maintenance frame mechanism 600 is arranged on one side of the rack 100, and the maintenance frame mechanism 600 is provided with a platform for the operator to climb.

Embodiment 2, on the basis of embodiment 1, with reference to fig. 6, hinged portions 13 are disposed at four corners of the bottom of the base 1, the hinged portions 13 are vertical rod structures, the bottoms of the hinged portions are hinged to screws 14 through transverse rotating shafts, the bottoms of the screws 14 are connected and fixed with the rack 100 through first nuts 15, the positions, close to the hinged portions 13, of the screws 14 are connected with second nuts 16, the second nuts 16 serve as limit nuts, the tops of the second nuts are used for clamping flange structures of the hinged portions 13, grooves matched with the bottom end profiles of the hinged portions 13 are formed in the tops of the flange structures, and after the second nuts 16 are screwed upwards, the grooves in the tops of the flanges can abut against and restrict the hinged portions 13, so that the hinged portions 13 are prevented from rotating. This helps facilitate adjustment of the installation angle of the hopper device 520, so that the blanking action of the rubber material is more efficient and smooth.

Embodiment 3, on the basis of embodiment 1, with reference to fig. 7, pulleys 7 are disposed on both sides of the board 5, bottoms of the pulleys 7 abut against the chute 12, and the pulleys 7 can roll in the chute 12 during movement of the board 5. This is to reduce the friction between the board 5 and the chute 12, to make the movement of the board 5 smoother and more labor-saving, and to reduce the work load of the driving element.

Embodiment 4, on the basis of embodiment 3, and with reference to fig. 8, the slide groove 12 is provided with a first section 121, a second section 122 and a third section 123 connected with each other from inside to outside in the stroke range of the board 5. The sliding grooves 12 in the first partition 121 and the third partition 123 are of a horizontal sinking groove structure, the width of the sliding groove 12 in the third partition 123 is greater than the width of the sliding groove 12 in the second partition 122 (the width is expressed as a longitudinal groove width), and the width of the sliding groove 12 in the second partition 122 gradually increases from inside to outside and naturally transitions.

When the inserting plate 5 is in a closed state, the pulleys 7 in each sub-area are matched with the width of the sliding groove 12 at the position (namely, the sizes of the pulleys 7 from inside to outside are gradually increased), and can be abutted and slide, when the inserting plate 5 moves outwards, the pulleys 7 at the outer side end are separated from the sliding groove 12, the pulleys 7 at the inner side end move to the second sub-area 122 or the third sub-area 123, because the sizes of the pulleys 7 after moving are smaller than the width of the sliding groove 12 at the position, a gap is generated to form a movable space in which the inserting plate 5 can longitudinally swing, and the inner side end of the inserting plate 5 can swing downwards after moving outwards under the pressure influence of rubber materials on the top of the inserting plate 5, so that a guide structure for the rubber materials to slide is formed. The purpose is to enrich the activity diversity of the inserting plate 5, and realize that the inner side end of the inserting plate 5 can swing downwards after the inserting plate 5 moves outwards, and a guide mechanism with an inclined surface structure is formed on the top surface of the inserting plate 5, so that the glue on the inserting plate 5 can slide off conveniently, and the stockpiling is avoided.

Furthermore, in order to provide a downward swing guiding action at the inner end of the adapting board 5 after moving outward, a steering joint 43 is provided between the telescopic rod 41 and the clamping joint 42, and the steering joint 43 can be adapted to swing upward and downward of the adapting board 5, such as a universal joint structure.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a bipyramid extrusion tablet press with return hopper structure, includes frame (100), is equipped with extruding means (200), preforming mechanism (300) and discharge mechanism (400) in frame (100), and extruding means (200) top is equipped with blanking mouth, its characterized in that: a material returning hopper mechanism (500) is further arranged above the blanking port, the material returning hopper mechanism (500) comprises a material returning device (510) arranged between the blanking port and the discharging mechanism (400) and a hopper device (520) arranged at the top of the blanking port, and the material returning device (510) is used for conveying the micelle to be processed repeatedly to the hopper device (520);

the hopper device (520) comprises a base (1), the base (1) penetrates through the interior of the base up and down to form a channel (11) communicated with a blanking port, a conical hopper (2) is arranged at the top of the base (1), at least one extension frame (3) is arranged on the side wall of the base (1), a driving piece is arranged on the extension frame (3), an inserting plate (5) is connected to the inner side end of the driving piece in a transmission manner, a sliding groove (12) matched with the inserting plate (5) is formed in the inner side wall of the base (1), and the driving piece can drive the inserting plate (5) to move in a reciprocating manner along the sliding groove (12) to form an opening and closing switching mechanism of the channel (11);

spout (12) are equipped with a plurality of subregion of interconnect from inside to outside in the stroke range of picture peg (5), be located the subregion of medial extremity and be located spout (12) that the subregion of outside end all has the heavy groove structure of level, the width of outside end spout (12) is greater than the width of medial extremity spout (12), and the width that is located spout (12) in the subregion between medial extremity and the outside end increases gradually from inside to outside, be equipped with hinge structure between picture peg (5) and the driving piece, this hinge structure can let picture peg (5) luffing motion.

2. A bi-cone extrusion tablet press with a return hopper structure according to claim 1, characterized in that: the inserting plate (5) is of a horizontal plate structure, and two sides of the inserting plate (5) are slidably clamped in the sliding grooves (12).

3. A bi-cone extrusion tablet press with return hopper structure according to claim 1 or 2, characterized in that: base (1) both sides all are equipped with extension frame (3), extension frame (3) medial extremity transmission respectively of both sides is connected with picture peg (5), and picture peg (5) the inside removal back of both sides, medial extremity butt each other constitutes a set of back drive's symmetry structure that opens and shuts.

4. A bi-cone extrusion tablet press with a return hopper structure according to claim 1, characterized in that: the inserting plate is characterized in that pulleys (7) are arranged on two sides of the inserting plate (5), the bottoms of the pulleys (7) are abutted to the sliding grooves (12), and the pulleys (7) can roll in the sliding grooves (12) in the moving process of the inserting plate (5).

5. A bi-cone extrusion tablet press with a return hopper structure according to claim 1, characterized in that: one side of the rack (100) is provided with a maintenance frame mechanism (600), and the maintenance frame mechanism (600) is provided with a platform for climbing of operators.

6. A bi-cone extrusion tablet press with a return hopper structure according to claim 1, characterized in that: the base (1) bottom is equipped with articulated portion (13), and articulated portion (13) bottom has vertical screw rod (14), and screw rod (14) are connected fixedly through the nut and frame (100).

7. A bi-cone extrusion tablet press with return hopper structure according to claim 6, characterized in that: and the screw rod (14) is also connected with a limiting nut, and the top of the limiting nut is provided with a flange structure for clamping the hinging part (13).