CN219405558U - Double-cylinder waste chip cake pressing device - Google Patents

Abstract

The utility model discloses a double-cylinder waste chip cake pressing device, wherein a cake pressing chamber is arranged on a frame, a left oil cylinder and a right oil cylinder are respectively arranged at the left side and the right side of the cake pressing chamber, the left oil cylinder and the right oil cylinder are respectively connected with hydraulic stations at the two sides of the frame, a pre-pressing mechanism is arranged above the cake pressing chamber, and an electric cabinet is arranged at one side of the cake pressing chamber; the cake pressing chamber is internally provided with a cake pressing chamber and a pre-pressing chamber which are communicated, the pre-pressing chamber is positioned above the cake pressing chamber, the top surface of the cake pressing chamber is provided with a feed inlet corresponding to the pre-pressing chamber, and the bottom surface of the cake pressing chamber is provided with a cake outlet positioned at the outer side of the cake pressing chamber; the pre-pressing mechanism is provided with a feeding cavity, the feeding cavity is opposite to the feeding hole, a pre-pressing head is arranged in the feeding cavity, and the pre-pressing head is connected with a pre-pressing oil cylinder. The utility model adopts double cylinders to press the chip cake, the cake density is uniform, and the cake quality and cake efficiency are high. The pre-pressing mechanism pre-presses the scraps before double-cylinder counter pressing, which is more beneficial to improving the density uniformity and the cost quality of the cake.

Description

Double-cylinder waste chip cake pressing device

Technical Field

The utility model relates to the technical field of metal waste scrap post-processing equipment, in particular to a double-cylinder scrap cake pressing device.

Background

The scrap cake machine is used as scrap metal pressing equipment and is mainly used for cold pressing metal scraps such as cast scrap iron, steel scraps, copper scraps, aluminum scraps, high-quality mineral powder cast scrap iron, steel scraps, copper scraps and the like into compact cylindrical or other cake blocks so as to facilitate storage and transportation and reduce transportation and smelting losses in the recycling process.

At present, most chip cake machines usually adopt single hydraulic punch to carry out the compression of single direction to the chip material in the compression chamber, and the chip cake that this kind of mode was pressed is usually more compact in one side that directly presses, and the opposite side that does not directly press is then comparatively loose, and chip cake density is inhomogeneous, and the cake density of pressing efficiency and extrusion is big on one side, and the cake quality is lower, has a lot of waste materials to leak from the cake die cavity in the compression process in addition, also can influence efficiency.

Disclosure of Invention

The applicant provides a double-cylinder scrap cake pressing device with reasonable structure aiming at the defects of the existing single-cylinder scrap cake machine, wherein cake density is uniform, cake forming quality and cake forming efficiency are high.

The technical scheme adopted by the utility model is as follows:

the double-cylinder waste chip cake pressing device is characterized in that a cake pressing chamber is arranged on a frame, a left oil cylinder and a right oil cylinder are respectively arranged on the left side and the right side of the cake pressing chamber, the left oil cylinder and the right oil cylinder are respectively connected with hydraulic stations on the two sides of the frame, a pre-pressing mechanism is arranged above the cake pressing chamber, and an electric cabinet is arranged on one side of the cake pressing chamber; the cake pressing chamber is internally provided with a cake pressing chamber and a pre-pressing chamber which are communicated, the pre-pressing chamber is positioned above the cake pressing chamber, the top surface of the cake pressing chamber is provided with a feed inlet corresponding to the pre-pressing chamber, and the bottom surface of the cake pressing chamber is provided with a cake outlet positioned at the outer side of the cake pressing chamber; the left punch connected with the left oil cylinder is arranged at the left opening of the cake pressing cavity, and the right punch connected with the right oil cylinder is arranged at the right opening of the cake pressing cavity; the pre-pressing mechanism is provided with a feeding cavity, the feeding cavity is opposite to the feeding hole, a pre-pressing head is arranged in the feeding cavity, and the pre-pressing head is connected with a pre-pressing oil cylinder.

As a further improvement of the above technical scheme:

the pre-pressing system connected with the pre-pressing mechanism and the cake pressing system connected with the cake pressing chamber are mutually independent systems, the pre-pressing mechanism is independently controlled by the pre-pressing system, and the cake pressing chamber is independently controlled by the cake pressing system.

The left oil cylinder is a piston cylinder, and the right oil cylinder is a plunger cylinder.

The hydraulic stations are integrally arranged on the frame, and the electric cabinet is arranged between the two hydraulic stations; the hydraulic stations on two sides are respectively positioned on the outer sides of the left oil cylinder and the right oil cylinder.

Oil pipes are connected between the oil tanks of the hydraulic stations at the two sides.

The middle part of the oil tank of the hydraulic station is provided with a plurality of heat dissipation channels penetrating through the tank body, the heat dissipation channels are isolated from the inner cavity of the oil tank, and a heat dissipation fan is arranged in the heat dissipation channels.

A buffer cavity is arranged on the pre-pressing mechanism and positioned outside the feeding cavity, and the buffer cavity is communicated with the feeding cavity; and a pushing plate is arranged on the buffer cavity and is connected with the pushing oil cylinder.

The front side of the pre-pressing mechanism is provided with a weighing device; a feeder is arranged at the front side of the frame, and a conveyor is arranged between the feeder and the weighing device; the weighing device adopts a belt scale, and a blanking hopper is arranged at the tail end of the conveyor, which is opposite to the weighing device.

A bracket of the feeder is provided with an upper hopper, an auger assembly and a lower hopper; the auger assembly comprises two augers which are in disrotatory connection, the augers are arranged in the frame in a penetrating way, and one end part of each auger is connected with the motor; a plurality of blades are uniformly arranged on the main shaft of the auger at intervals along the axial direction, the blades of two augers are in staggered engagement at intervals, and a gap is formed between every two adjacent blades to form an inner blanking gap.

A plurality of material distributing plates are uniformly arranged on the frame and on the inner side surface parallel to the axial direction of the auger at intervals, the material distributing plates extend between two adjacent blades, and gaps are formed between the material distributing plates and the blades adjacent to the two sides to form an outer blanking gap; the blade is provided with a stirring opening, and the edge of one side, facing the meshing of the two augers, of the stirring opening is coated with a wear-resistant block.

The beneficial effects of the utility model are as follows:

the utility model adopts double cylinders to press the chip cake, the cake density is uniform, and the cake quality and cake efficiency are high. The pre-pressing mechanism pre-presses the scraps before double-cylinder counter pressing, which is more beneficial to improving the density uniformity and the cost quality of the cake.

The cake pressing system connected with the cake pressing chamber and the pre-pressing system connected with the pre-pressing mechanism are mutually independent, and the pre-pressing system can control the pre-pressing mechanism to pre-press cakes simultaneously while controlling the cake pressing chamber to press cakes, so that the interval time between working procedures can be shortened, and the cake pressing efficiency can be improved.

The left oil cylinder adopts the piston cylinder, and the piston rod of the left oil cylinder can actively retract to return after extending out, so that the space of a cake pressing cavity is reserved for the next cake pressing work; the right oil cylinder adopts the plunger cylinder, and after the piston rod of the plunger cylinder stretches out, the plunger cylinder can be pushed back along with the pushing of the chip cake, and no extra power is needed for returning, so that the complex piston cylinder structure arranged on two sides is avoided, the structure can be simplified, the energy consumption is saved, and the cost is reduced.

The hydraulic station is arranged at the rear side of the oil cylinder, so that the space in the vertical direction of the rear side of the oil cylinder can be effectively utilized, the hydraulic station and the oil cylinder are arranged in parallel, the oil cylinder cannot limit the height of the hydraulic station, the oil tank of the hydraulic station is arranged at a higher position, the liquid level of oil in the oil tank is higher than that of the left oil cylinder and the right oil cylinder, and because the liquid level is higher, when oil is fed, the oil can be filled into the oil cylinder under the action of gravity, the oil feeding resistance is smaller, the energy consumption is reduced, the oil feeding speed is improved, and the cake pressing efficiency is improved.

The oil tanks on the two sides of the utility model are connected with the oil passing pipe, the right oil tank can supplement oil to the left oil tank through the oil passing pipe, and the oil quantity of the two oil tanks can be fully utilized while the sufficient oil quantity of the left oil cylinder is ensured, so that the oil tanks on the left side and the right side can be designed to be consistent in size and symmetrically arranged under the condition of ensuring the oil quantity, and the whole appearance of the equipment is more coordinated and unified and more attractive. The middle part of the oil tank is provided with a through heat dissipation channel, so that the oil in the oil tank can be dissipated from the central part, the heat dissipation effect is better, and the heat dissipation speed can be further improved by additionally arranging a heat dissipation fan in the heat dissipation channel, so that the heat dissipation is better.

The pre-pressing mechanism is provided with the buffer cavity, when the chip material of one chip cake is pre-pressed in the pre-pressing cavity, the chip material of the next chip cake can be buffered in the buffer cavity at the same time, namely, the pre-pressing of one chip cake and the preparation of the chip material of the next chip cake can be performed at the same time, so that the time can be saved, and the production efficiency can be improved.

The weighing device adopts the belt scale, the belt scale runs stably, the reliability is high, the metering precision is high, the belt scale can feed materials into the buffer cavity when the weight reaches the preset weight, continuous and uninterrupted metering is realized, the working power is greatly improved, the quantitative supply is realized, and the weight consistency of each chip cake is ensured.

According to the auger assembly of the charging machine, the blades are distributed on the two counter-rotating augers at intervals and are matched with the material separating plates at intervals on the inner side of the frame, so that the scraps of the feeding hopper can be uniformly distributed and then pass through the inner blanking gap and the outer blanking gap, the uniformity of the scraps is improved, the compactness of the follow-up scraps cake pressing is improved, the scraps density is improved, and the cake forming quality and the cake forming efficiency are improved. The blade of the auger is provided with a stirring opening, and the stirring opening can stir scraps to the meshing position of the two augers, thereby being more beneficial to blanking. The stirring ports on the blades of the same auger are arranged at different circumferential positions, and the stirring ports of the blades can sequentially stir the scraps at corresponding positions downwards, so that the uniform distribution of the scraps is facilitated. The abrasion-resistant blocks are coated on the stirring opening, so that the intensity and abrasion resistance of the stirring edge of the stirring opening can be improved, and the deformation of the blades is prevented.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a cross-sectional view of section A-A of fig. 2.

Fig. 4 is a cross-sectional view of section B-B of fig. 3.

Fig. 5 is a cross-sectional view of section C-C of fig. 4.

Fig. 6 is a schematic structural view of a cookie cavity assembly.

Fig. 7 is a schematic structural view of the right bobbin.

Fig. 8 is a cross-sectional view of the feeder, with the arrows showing the direction of rotation of the auger.

Fig. 9 is a schematic structural view of the auger assembly.

Fig. 10 is a top view of the auger assembly.

Fig. 11 is a schematic structural view of the packing auger.

Fig. 12 is a schematic diagram of a chip cake pressing flow in the cake pressing chamber.

In the figure: 1. a frame; 2. a cake pressing chamber; 21. a cake pressing cavity; 22. a pre-pressing cavity; 23. a feed inlet; 24. a cake outlet; 25. a left bobbin; 26. a middle bobbin; 27. a right bobbin; 271. a cylindrical section; 272. a conical section; 3. a left cylinder; 31. a left punch; 4. a right oil cylinder; 41. a right punch; 5. a hydraulic station; 51. an oil tank; 52. oil pipe; 53. a heat dissipation channel; 54. a heat radiation fan; 6. a pre-pressing mechanism; 61. a feed chamber; 62. pre-pressing head; 63. pre-pressing an oil cylinder; 64. a buffer cavity; 65. a pushing plate; 66. pushing oil cylinder; 7. a weighing device; 71. a support; 8. a conveyor; 81. a feed section; 82. a material conveying section; 83. a blanking section; 84. a blanking hopper; 9. a charging machine; 91. a bracket; 92. feeding a hopper; 93. an auger assembly; 931. an auger; 9311. a main shaft; 9312. a blade; 9313. a stirring port; 9314. a wear block; 932. a frame; 933. a motor; 934. a material dividing plate; 935. an inner blanking gap; 936. an outer blanking gap; 94. discharging a hopper; 10. an electric cabinet.

Detailed Description

The following describes specific embodiments of the present utility model with reference to the drawings.

As shown in fig. 1 and 2, the chip cake pressing device of the utility model comprises a cake pressing chamber 2 arranged in the middle of the front side of a frame 1, wherein a left oil cylinder 3 and a right oil cylinder 4 are respectively arranged on the left side and the right side of the cake pressing chamber 2, and the left oil cylinder 3 and the right oil cylinder 4 are respectively connected with a hydraulic station 5 on the two sides of the rear part of the frame 1. A pre-pressing mechanism 6 is arranged above the cake pressing chamber 2, and a weighing device 7 is arranged at the front side of the pre-pressing mechanism 6. A feeder 9 is arranged in front of the frame 1, a conveyor 8 is arranged between the feeder 9 and the weighing device 7, and scraps on the feeder 9 are conveyed to the weighing device 7 through the conveyor 8 to be quantitatively weighed. An electric cabinet 10 for controlling the operation of the whole device is arranged behind the cake pressing chamber 2.

As shown in fig. 3 and 4, a cake pressing cavity 21 and a pre-pressing cavity 22 which are communicated are arranged in the cake pressing chamber 2, and the pre-pressing cavity 22 is positioned above the cake pressing cavity 21. The top surface of the cake pressing chamber 2 is provided with a feed inlet 23 corresponding to the pre-pressing cavity 22; the cake outlet 24 is arranged on the bottom surface of the cake pressing chamber 2 and on the right side of the cake pressing cavity 21. The left end and the right end of the cake pressing cavity 21 are opened, a left punch 31 connected with a piston rod of the left oil cylinder 3 can extend into or retract out of the cake pressing cavity 21 from the left end opening, and a right punch 41 connected with a piston rod of the right oil cylinder 4 can extend into or retract out of the cake pressing cavity 21 from the right end opening. The left cylinder 3 adopts a piston cylinder, and after the piston rod drives the left punch 31 to extend, the left cylinder can actively retract to return to leave the space of the cake pressing cavity 21 for the next cake pressing work. The right cylinder 4 adopts the plunger cylinder, and after the piston rod drives the right punch 41 to stretch out, the piston rod can be pushed back when the chip cake is pushed out, and no extra power is needed for returning, so that the complex piston cylinder structure arranged on two sides is avoided, the structure can be simplified, the energy consumption is saved, and the cost is reduced.

As shown in fig. 4 and 6, the cake chamber 21 of the cake chamber 2 is constituted by a through inner passage of a left bobbin 25, a middle bobbin 26, and a right bobbin 27 which are connected in this order from left to right. The inner channels of the left bobbin 25 and the middle bobbin 26 are cylindrical channels with the same inner diameter, and the inner diameters of the left bobbin 25 and the middle bobbin 26 are matched with the outer diameter of the left punch 31. As shown in fig. 7, the inner channel of the right bobbin 27 comprises a cylindrical section 271 of the left section and a conical section 272 of the right section, the conical section 272 is small in inside and large in outside, the small diameter end of the conical section 272 is connected with the cylindrical section 271, the taper alpha of the conical section 272 is 0.5-5 degrees, the friction of cake discharging on the right bobbin 27 is reduced, the cake discharging force is small, the speed is high, and the service life of the bobbin is long. The inner diameter of the cylindrical section 271 is adapted to the inner diameter of the left punch 31 to ensure that the left punch 31 can push out the chip cake through the right barrel 27. The inner diameter of the small diameter end of the conical section 272 is smaller than the outer diameter of the right punch 41, the inner diameter of the large diameter end is larger than the outer diameter of the right punch 41, the right punch 41 can extend in from the large diameter end of the conical section 272 but cannot penetrate through the conical section 272, when the right punch 41 extends to the end face of the right punch 41 to abut against the inner wall surface of the conical section 272, the right punch 41 can play the role of a plug, and the plug is plugged on the right side of the cake pressing cavity 21 during feeding so as to prevent scraps from falling out.

As shown in fig. 1, two hydraulic stations 5 are provided on the frame 1, at the rear sides of the left cylinder 3 and the right cylinder 4, respectively; as shown in fig. 5, the electric cabinet 10 is provided on the frame 1 between the two hydraulic stations 5. The hydraulic pressure station 5 is integrated to be set up on frame 1, and electric cabinet 10 sets up between two hydraulic pressure stations 5, has carried out effective utilization to the space between two hydraulic pressure stations 5 for equipment overall structure is compacter, and the outward appearance is more pleasing to the eye. The hydraulic station 5 is arranged at the rear side of the oil cylinder, so that the space on the vertical direction of the rear side of the oil cylinder can be effectively utilized, the hydraulic station 5 and the oil cylinder are arranged in parallel, the oil cylinder cannot limit the height of the hydraulic station 5, the oil tank 51 of the hydraulic station 5 is arranged at a higher position, as shown in fig. 4, the height of the oil tank 51 at the left side and the right side is higher than the heights of the left oil cylinder 3 and the right oil cylinder 4, namely the oil liquid level in the oil tank 51 is higher than the left oil cylinder 3 and the right oil cylinder 4. Because the liquid level is higher, when the oil is fed, the oil can be poured into the oil cylinder under the action of gravity, so that the oil feeding resistance is smaller, the energy consumption is reduced, the oil feeding speed is improved, and the cake pressing efficiency is improved. As shown in fig. 5, the oil tanks 51 on both sides are connected with the oil passing pipe 52, because the left oil cylinder 3 is used as the main oil cylinder, the required oil quantity is larger, and the right oil cylinder 4 is used as the auxiliary oil cylinder, the required oil quantity is smaller, so the right oil tank 51 connected with the right oil cylinder 4 can supplement oil into the left oil tank 51 connected with the left oil cylinder 3 through the oil passing pipe 52, the oil quantity of the two oil tanks 51 can be fully utilized while the sufficient oil quantity of the left oil cylinder 3 is ensured, and the oil tanks 51 on both sides can be designed to be consistent and symmetrically arranged under the condition of ensuring the oil quantity, so that the whole appearance of the equipment is more coordinated, unified and more attractive. As shown in fig. 4, a plurality of heat dissipation channels 53 penetrating through the tank body of the oil tank 51 of the hydraulic station 5 are arranged at the middle part of the oil tank 51, the heat dissipation channels 53 are isolated from the inner cavity of the oil tank 51, and a heat dissipation fan 54 is arranged in the heat dissipation channels 53; the middle part of the oil tank 51 is provided with the through heat dissipation channel 53, so that the oil in the oil tank 51 can be dissipated from the central part, the heat dissipation effect is better, and the heat dissipation speed can be further improved by additionally arranging the heat dissipation fan 54 in the heat dissipation channel 53, and the heat dissipation is better.

As shown in fig. 3 and 4, the pre-pressing mechanism 6 is provided with a feeding cavity 61, the feeding cavity 61 is opposite to the feeding hole 23, and the pre-pressing cavity 22 is communicated through the feeding hole 23. The pre-pressing head 62 is arranged in the feeding cavity 61, the pre-pressing head 62 is connected with a piston rod of the pre-pressing oil cylinder 63, the pre-pressing head 62 can be driven by the pre-pressing oil cylinder 63 to move up and down, and the pre-pressing head 62 can extend into the pre-pressing cavity 22 downwards to pre-press scraps in the pre-pressing cavity 22. A buffer cavity 64 is further arranged on the pre-pressing mechanism 6 and positioned outside the feeding cavity 61, and the buffer cavity 64 is communicated with the feeding cavity 61; a pushing plate 65 is arranged on the other side of the buffer cavity 64 opposite to the feeding cavity 61, and the pushing plate 65 is connected with a piston rod of a pushing oil cylinder 66; the scraps weighed by the weighing device 7 are poured into the buffer cavity 64, and the scraps are pushed into the feeding cavity 61 from the buffer cavity 64 by the pushing plate 65 driven by the pushing cylinder 66. Due to the arrangement of the buffer cavity 64, when the chip material of one chip cake is pre-pressed in the pre-pressing cavity 22, the chip material of the next chip cake can be buffered in the buffer cavity 64, namely, the pre-pressing of one chip cake and the preparation of the chip material of the next chip cake can be simultaneously performed, so that the time can be saved, and the production efficiency can be improved.

The pre-compaction system that pre-compaction mechanism 6 connects is mutually independent system with the cake pressing system that cake pressing room 2 is connected, and pre-compaction mechanism 6 is by pre-compaction system independent control, and cake pressing room 2 is by cake pressing system independent control, when cake pressing system control cake pressing room 2 carries out bits cake suppression, pre-compaction system can control pre-compaction mechanism 6 and carry out pre-compaction work simultaneously, can shorten the interval time between the process, improves cake pressing efficiency.

As shown in fig. 2 and 3, the weighing device 7 adopts a belt scale, and is connected to the pre-pressing mechanism 6 through a support 71, the belt scale is stable in operation, high in reliability and high in metering accuracy, and the belt scale can feed materials into the buffer cavity 64 after reaching a preset weight while weighing, so that continuous metering is realized, the working power is greatly improved, the quantitative supply is realized, and the weight consistency of each chip cake is ensured.

The conveyer 8 is Z-shaped, and including low level feeding section 81, middle inclined material conveying section 82 and high level blanking section 83, the feeding section 81 is just to the feed opening of feeder 9, and blanking section 83 is provided with blanking hopper 84, and blanking hopper 84 just is weighing device 7, and the chip material that conveyer 8 carried can accurately fall into weighing device 7 through blanking hopper 84, when reaching appointed weight, pauses the transportation, guarantees the accuracy of weighing.

As shown in fig. 8 to 10, the feeder 9 includes an upper hopper 92, an auger assembly 93 and a lower hopper 94 which are sequentially connected to each other from top to bottom and are arranged on a bracket 91, the upper port of the upper hopper 92 is a feed inlet, and the lower hopper 94 is a feed outlet; the upper hopper 92 and the lower hopper 94 are conical hoppers with large upper parts and small lower parts, so that the scraps can be conveniently discharged. As shown in fig. 9 and 10, the auger assembly 93 comprises two augers 931 with opposite rotation directions, and the augers 931 are respectively rotated from outside to inside toward the meshing directions of the augers; two augers 931 are arranged in a square frame 932 in a penetrating way, one end part of each auger 931 penetrating out of the frame 932 is connected with a motor 933, and each auger 931 is driven by the corresponding motor 933 to actively rotate; the motors 933 connected by the two augers 931 are located on opposite sides. As shown in fig. 9 to 11, the packing auger 931 includes a main shaft 9311 connected to a motor 933 and a plurality of annular blades 9312 provided on the outer periphery of the main shaft 9311, the plurality of blades 9312 being uniformly spaced on the main shaft 9311 in the axial direction. The blades 931 of the two augers 931 are alternately engaged with each other with a gap between adjacent blades 931 to form an inner blanking gap 935. A plurality of distributing plates 934 are respectively and uniformly arranged on the inner side surfaces of the two side plates axially parallel to the packing auger 931 at intervals on the frame 932, the distributing plates 934 extend into between two adjacent blades 9312, and gaps are formed between the distributing plates 934 and the adjacent blades 9312 on two sides to form an outer blanking gap 936. The auger assembly 93 is matched with the material separating plate 934 at intervals on the inner side of the frame 932 through the plurality of blades 931 which are distributed at intervals on the two counter-rotating augers 931, so that the chip materials of the upper hopper 92 can be uniformly distributed and then pass through the inner blanking gap 935 and the outer blanking gap 936, the uniformity of the chip materials is improved, the compactness of the subsequent chip cake pressing is improved, the chip cake density is improved, and the cake forming quality and the cake forming efficiency are improved. Each blade 9312 is provided with a stirring opening 931, and the stirring openings 931 can stir scraps to the meshing positions of the two augers 931, thereby being more beneficial to blanking; the material stirring ports 9313 on the blades 931 of the same auger 931 are arranged at different circumferential positions, and the line connecting the centers of the material stirring ports 931 of the blades 931 sequentially from one end to the other end of the auger 931 is a spiral line around the main shaft 9311, so that the material stirring ports 9313 can sequentially stir down the chip materials at corresponding positions, thereby being more beneficial to uniform distribution of the chip materials. The wear-resistant blocks 9314 are coated on the edge of one side, facing the engagement of the two augers 931, of the material stirring opening 9313, so that the strength and wear resistance of the material stirring edge of the material stirring opening 9313 can be improved, and the deformation of the blades 9312 can be prevented.

When the chip cake pressing device actually works, the specific working steps are as follows:

i. initially, the charging machine 9 stores the scraps to be pressed; the left cylinder 3 and the right cylinder 4 shrink, and the cake pressing cavity 21 is communicated with the pre-pressing cavity 22.

The scraps of the feeder 9 are sent to the weighing device 7 through the conveyor 8 for quantitative weighing and then poured into the buffer cavity 64 of the pre-pressing mechanism 6; the right cylinder 4 drives the right punch 41 to press into the cake pressing cavity 21, and the right cylinder abuts against the inner wall of the right bobbin 27 to seal the right end of the cake pressing cavity 21.

The chip materials in the buffer cavity 64 are pushed into the feeding cavity 61 through the pushing plate 65 by the pushing oil cylinder 66 of the pre-pressing mechanism 6, and fall into the pre-pressing cavity 22 and the cake pressing cavity 21 from the feeding hole 23.

As shown in fig. 12 (a), a pre-pressing cylinder 63 of the pre-pressing mechanism 6 drives a pre-pressing head 62 to move downwards to pre-press the scraps, and the scraps are completely pressed into the cake pressing cavity 21; when the pre-pressing oil cylinder 63 pre-presses the scraps, the weighing device 7 can simultaneously weigh the scraps of the next scraps cake and buffer the scraps in the buffer cavity 64.

And v. the cake pressing chamber 2 is used for manufacturing the scraps, and the specific pressing process is shown in fig. 12.

As shown in fig. 12 (b), first, the left cylinder 3 drives the left punch 31 to push forward, so that the chip material in the cake chamber 21 is pushed forward, and at this time, the pressure of the left cylinder 3 is greater than that of the right cylinder 4, and the pressure of the left cylinder 3 is 1 to 4 times that of the right cylinder 4.

As shown in fig. 12 (c), since the pressure of the right cylinder 4 is small, after the chip material is pushed forward until the chip material hits the right punch 41, the right punch 41 will retreat by a distance L along with the chip material being pushed by the left punch 31, the retreating distance L is smaller than the distance from the position where the right punch 41 abuts against the right bobbin 27 to the outer port of the right bobbin 27, so that the state that the right punch 41 extends into the cake pressing cavity 21 is always maintained in the passive retreating process, and the chip material is prevented from leaking; the distance L for the passive retraction of the right punch 41 is in the range of 25 to 200mm. When the left cylinder 3 is provided with the chip pressing materials, the pre-pressing cylinder 63 drives the pre-pressing head 62 to move upwards to return.

As shown in fig. 12 (d), after the right punch 41 is retracted to the set distance, the left punch 31 and the oil passage of the right punch 41 are connected in series and simultaneously start to be pressurized until the pressurization reaches the set pressure value, and then the pressurization is stopped, and at this time, the chip material is pressed into a chip cake. When the left punch 31 and the right punch 41 press the scraps at the same time, the pre-pressing head 62 pre-presses the scraps of the next scraps cake in the pre-pressing chamber 22 at the same time.

As shown in fig. 12 (e), after the chip cake is pressed, the right cylinder 4 is depressurized, the left punch 31 pushes the pressed chip cake and the right punch 41 to continue to advance, the chip cake is pushed out of the cake pressing cavity 21 and falls out of the cake outlet 24, and the right punch 41 is pushed back to the position; the pressing work of one chip cake is completed.

The left oil cylinder 3 drives the left punch 31 to shrink and return, and the right oil cylinder 4 drives the right punch 41 to push out and block the right end of the cake pressing cavity 21; after the left punch 31 retreats to leave the cake pressing cavity 21, the pre-pressed material in the pre-pressing cavity 22 falls into the cake pressing cavity 21, and the left cylinder 3 and the right cylinder 4 press the next chip cake according to v steps.

And (5) circularly reciprocating to finish batch chip cake pressing work.

In the utility model, in the starting stage of pressing the scraps in the cake pressing cavity 21, the pressure of the right cylinder 4 is set smaller than that of the left cylinder 3, when the scraps are pushed forward by the left cylinder 3 to touch the starting stage of the right cylinder 4, the scraps are not braked and forced to be pressed on two sides, but move forward for a certain distance along with the right cylinder 4, in the process of moving forward, the looser scraps obtain the time of reforming, in the process of moving forward, the tiny scraps are easy to loosen and move to fill into gaps in the scraps, especially when the gaps are larger in the scraps, the periphery tiny scraps are easier to loosen and move to fill into the gaps, so that the gaps are fully filled, and when the cylinders on two sides begin to press and press, the gaps in the scraps are fully filled, the pressed scraps are more compact, the scraps are more uniform in density, and the cake forming quality and cake forming quality are higher. In addition, the right oil cylinder 4 passively retreats for a certain distance at the beginning stage, so that enough pressurizing space is reserved for the right oil cylinder, pressurizing is easier to perform, the pressing effect after pressurizing is better, and the chip cake density and cake quality are improved.

The above description is illustrative of the utility model and is not intended to be limiting, and the utility model may be modified in any form without departing from the spirit of the utility model.

Claims (10)

1. A double-cylinder waste bits cake suppression device which characterized in that: a cake pressing chamber (2) is arranged on the frame (1), a left oil cylinder (3) and a right oil cylinder (4) are respectively arranged at the left side and the right side of the cake pressing chamber (2), the left oil cylinder (3) and the right oil cylinder (4) are respectively connected with hydraulic stations (5) at the two sides of the frame (1), a pre-pressing mechanism (6) is arranged above the cake pressing chamber (2), and an electric cabinet (10) is arranged at one side of the cake pressing chamber (2); a cake pressing cavity (21) and a pre-pressing cavity (22) which are communicated are arranged in the cake pressing chamber (2), the pre-pressing cavity (22) is positioned above the cake pressing cavity (21), a feeding port (23) is formed in the top surface of the cake pressing chamber (2) corresponding to the pre-pressing cavity (22), and a cake outlet (24) is formed in the bottom surface of the cake pressing chamber (2) and positioned at the outer side of the cake pressing cavity (21); the left side and the right side of the cake pressing cavity (21) are provided with openings, a left punch (31) connected with the left oil cylinder (3) is arranged at the left side opening of the cake pressing cavity (21), and a right punch (41) connected with the right oil cylinder (4) is arranged at the right side opening of the cake pressing cavity (21); a feeding cavity (61) is formed in the pre-pressing mechanism (6), the feeding cavity (61) is opposite to the feeding port (23), a pre-pressing head (62) is arranged in the feeding cavity (61), and the pre-pressing head (62) is connected with a pre-pressing oil cylinder (63).

2. The double-cylinder scrap cake pressing apparatus according to claim 1, wherein: the pre-pressing system connected with the pre-pressing mechanism (6) and the cake pressing system connected with the cake pressing chamber (2) are mutually independent systems, the pre-pressing mechanism (6) is independently controlled by the pre-pressing system, and the cake pressing chamber (2) is independently controlled by the cake pressing system.

3. The double-cylinder scrap cake pressing apparatus according to claim 1, wherein: the left oil cylinder (3) is a piston cylinder, and the right oil cylinder (4) is a plunger cylinder.

4. The double-cylinder scrap cake pressing apparatus according to claim 1, wherein: the hydraulic stations (5) are integrally arranged on the frame (1), and the electric cabinet (10) is arranged between the two hydraulic stations (5); the hydraulic stations (5) on two sides are respectively positioned on the outer sides of the left oil cylinder (3) and the right oil cylinder (4).

5. The double-cylinder scrap cake pressing apparatus according to claim 1, wherein: oil pipes (52) are connected between the oil tanks (51) of the hydraulic stations (5) at the two sides.

6. The double-cylinder scrap cake pressing apparatus according to claim 1, wherein: the middle part of an oil tank (51) of the hydraulic station (5) is provided with a plurality of heat dissipation channels (53) penetrating through the tank body, the heat dissipation channels (53) are isolated from the inner cavity of the oil tank (51), and a heat dissipation fan (54) is arranged in the heat dissipation channels (53).

7. The double-cylinder scrap cake pressing apparatus according to claim 1, wherein: a buffer cavity (64) is arranged on the pre-pressing mechanism (6) and positioned outside the feeding cavity (61), and the buffer cavity (64) is communicated with the feeding cavity (61); the buffer cavity (64) is provided with a pushing plate (65), and the pushing plate (65) is connected with a pushing oil cylinder (66).

8. The double-cylinder scrap cake pressing apparatus according to claim 1, wherein: a weighing device (7) is arranged at the front side of the pre-pressing mechanism (6); a feeder (9) is arranged at the front side of the frame (1), and a conveyor (8) is arranged between the feeder (9) and the weighing device (7); the weighing device (7) adopts a belt scale, and the end of the conveyor (8) facing the weighing device (7) is provided with a blanking hopper (84).

9. The double-cylinder scrap cake pressing apparatus according to claim 7 wherein: a bracket (91) of the feeder (9) is provided with an upper hopper (92), an auger assembly (93) and a lower hopper (94); the auger assembly (93) comprises two augers (931) which are in opposite rotation, the augers (931) are arranged in the frame (932) in a penetrating mode, and one end portion of each auger is connected with the motor (933); a plurality of blades (931) are uniformly arranged on a main shaft (931) of the auger (931) at intervals along the axial direction, the blades (931) of the two augers (931) are alternately meshed at intervals, and gaps are formed between the two adjacent blades (931) to form an inner blanking gap (935).

10. The double-cylinder scrap cake pressing apparatus according to claim 8 wherein: a plurality of distributing plates (934) are uniformly arranged on the frame (932) and on the inner side surface axially parallel to the auger (931) at intervals, the distributing plates (934) extend between two adjacent blades (9312), gaps are formed between the distributing plates (934) and the blades (9312) adjacent to the two sides, and an outer blanking gap (936) is formed; the blade (9312) is provided with a stirring opening (9313), and the stirring opening (931) is coated with a wear-resistant block (931) on the edge of one side, which faces the engagement of the two augers (931).