CN114103215B - Hot press with pre-compaction function - Google Patents
Hot press with pre-compaction function Download PDFInfo
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- CN114103215B CN114103215B CN202111422095.2A CN202111422095A CN114103215B CN 114103215 B CN114103215 B CN 114103215B CN 202111422095 A CN202111422095 A CN 202111422095A CN 114103215 B CN114103215 B CN 114103215B
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- Prior art keywords
- plate
- driving
- hot press
- upper base
- flattening
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- 238000005056 compaction Methods 0.000 title claims description 3
- 239000000463 material Substances 0.000 claims abstract description 58
- 238000003825 pressing Methods 0.000 claims abstract description 53
- 238000003892 spreading Methods 0.000 claims abstract description 20
- 230000017105 transposition Effects 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 241000357293 Leptobrama muelleri Species 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000007723 die pressing method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0052—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for fluid driven presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
Abstract
The invention discloses a hot press with a pre-pressing function, and relates to the technical field of brake pad production. The hot press comprises an upper base, wherein a sliding frame and a first driving part for driving the sliding frame to move back and forth are arranged below the upper base. The sliding frame is sequentially provided with a spreading plate and an upper die unit from front to back; the flattening plate is connected with the sliding frame in a sliding way, and a second driving part for driving the flattening plate to move back and forth is arranged between the flattening plate and the sliding frame. The spreading plate is provided with a compressing cylinder for compressing the material box on the spreading plate. The upper base is provided with a guide post which can move up and down relative to the upper base, the lower end of the guide post is fixedly provided with a pre-pressing plate, and a fourth driving part for driving the guide post to move up and down is arranged between the guide post and the upper base. The hot press not only can ensure that the main materials and the auxiliary materials keep good layering and ensure the production quality of the brake pad, but also can independently finish the prepressing operation.
Description
Technical Field
The invention relates to the technical field of brake pad production, in particular to a hot press with a pre-pressing function.
Background
The raw materials for producing the brake pad comprise main materials and auxiliary materials, and the main materials and the auxiliary materials are sequentially added into a die cavity in the process of producing the brake pad and then pressed. In order to ensure good performance of the brake pad, good layering is ensured between the main materials and the auxiliary materials.
The existing brake pad automatic production equipment is characterized in that main materials and auxiliary materials are added into a die cavity of a hot press through a material box. Because the existing brake block automatic production equipment generally does not have a pre-pressing function, although main materials and auxiliary materials in a material box are flattened to form good layering, the main materials and the auxiliary materials fall into a die cavity by self weight, so that the main materials and the auxiliary materials fall into the die cavity of a hot press from the material box at different falling speeds at different positions, and the layering condition of the main materials and the auxiliary materials finally falling into the die cavity can be influenced, and good layering cannot be ensured.
Even if some automatic brake pad production equipment has a pre-pressing function, the device for pre-pressing is also arranged on a feeding device shared by a plurality of hot presses, for example, a full-automatic brake pad production equipment disclosed in patent number 2020112937152. Therefore, the feeding time of each hot press is increased, and the hot press can be subjected to pre-pressing feeding only in the same time, so that the production takt is obviously dragged and the production efficiency is reduced.
Disclosure of Invention
Aiming at the problems, the invention provides the hot press with the pre-pressing function, which not only can ensure that main materials and auxiliary materials which finally fall into a cavity of the hot press keep good layering and ensure the production quality of a brake pad, but also can independently finish the pre-pressing operation.
The technical scheme adopted for solving the technical problems is as follows:
the hot press with the pre-pressing function comprises an upper base, wherein a sliding frame is arranged below the upper base in a sliding way, and a first driving part for driving the sliding frame to move forwards and backwards is arranged between the upper base and the sliding frame;
the sliding frame is sequentially provided with a spreading plate and an upper die unit from front to back;
the flattening plate is connected with the sliding frame in a sliding way, and a second driving part for driving the flattening plate to move back and forth is arranged between the flattening plate and the sliding frame;
the compression cylinder is arranged on the spreading plate and used for compressing the material box on the spreading plate;
the spreading plate is provided with a driving plate, a third driving part for driving the driving plate to slide back and forth is arranged between the driving plate and the spreading plate, the driving plate is provided with a second locating pin, and the drawing plate of the material box is provided with a second locating hole matched with the second locating pin;
the upper base is provided with a guide post which can move up and down relative to the upper base, the lower end of the guide post is fixedly provided with a pre-pressing plate, and a fourth driving part for driving the guide post to move up and down is arranged between the guide post and the upper base.
Further, the second driving part comprises a flattening motor and a guide seat which are fixedly arranged on the sliding frame, a guide rod is arranged in the guide seat in a sliding mode, one end of the guide rod is connected with a power output shaft of the flattening motor through a connecting rod, the other end of the guide rod is fixedly connected with the flattening plate, one end of the connecting rod is hinged to the guide rod, and the other end of the connecting rod is hinged to an eccentric shaft on the power output shaft of the flattening motor.
Further, a driving disc is fixedly arranged on a power output shaft of the flattening motor, and the eccentric shaft is fixedly arranged on the driving disc.
Further, a concave part for accommodating the pre-pressing plate is arranged on the lower side surface of the upper base, and the pre-pressing plate is positioned in the concave part when the guide post is positioned at the upper limit position.
Further, the left and right sides of going up the mould unit be provided with the boss respectively, the boss on be provided with the dead lever, just the upper end of dead lever pass the balladeur train extend to the top of balladeur train, the dead lever on be located the top of balladeur train be provided with the stopper, the dead lever on be located the balladeur train and boss between the cover be equipped with the spring, and under free state, the mould unit break away from with last base in the effect of spring.
Further, grooves for accommodating the springs are respectively formed in the upper side face of the boss and the lower side face of the sliding frame.
Further, the lower side of the material box is located above the lower side of the upper die unit, the upper base is provided with a push rod, and when the lower end of the push rod abuts against the middle die holder, the upper side of the middle die unit is attached to the lower side of the material box.
Further, a first locating pin is arranged on the spreading plate, and a first locating hole matched with the first locating pin is arranged on the body of the material box.
Further, the rear side of hot press is provided with steel backing material feeding unit, steel backing material feeding unit include the support frame of constituteing by roof, bottom plate and vertical beam, the top of support frame fixedly be provided with the limiting plate, the limiting plate on be provided with spacing hole, limiting plate and roof between be located the outside in spacing hole and be provided with spacing post, and under the restriction effect of spacing post, the steel backing only has the degree of freedom of reciprocating, the support frame in be provided with the feeding cylinder with spacing hole one-to-one, the fixed feeding push rod that is provided with in rod end of the piston rod of feeding cylinder, the upper end of feeding push rod passes the roof and supports and lean on corresponding spacing downthehole steel backing.
The beneficial effects of the invention are as follows:
1. the hot press has the pre-pressing function, namely, the raw materials (main materials and auxiliary materials) in the material box are pre-pressed firstly, then the main materials and the auxiliary materials are pushed together, the main materials and the auxiliary materials are pushed into the die cavity of the hot press, the main materials and the auxiliary materials which finally fall into the die cavity of the hot press can be ensured to keep good layering, and the production quality of the brake pad is ensured.
2. The hot press can independently finish flattening operation and prepressing operation, so that when the hot press and the feeding device are matched to form automatic production equipment, the hot presses do not affect each other when performing flattening operation and prepressing operation, can be performed simultaneously, do not occupy the operation time of the feeding device shared by a plurality of hot presses, and are favorable for accelerating production beat and improving production efficiency.
3. The upper die unit is in floating connection with the upper base of the hot press, so that on one hand, the upper die unit can be ensured to be moved out smoothly, and friction between the upper die unit and the upper base when the upper die unit moves forwards and backwards relative to the upper base is avoided; on the other hand, in the process of die assembly and pressing, the damage of the linear guide rail pair caused by the fact that the pressure of the main oil cylinder is applied to the linear guide rail pair can be avoided.
Drawings
FIG. 1 is a schematic perspective view of a hot press;
FIG. 2 is a right side view of the present press;
FIG. 3 is a schematic perspective view of an upper die portion of a hot press;
FIG. 4 is an enlarged schematic view of the portion A in FIG. 3;
FIG. 5 is a right side view of the upper die portion of the hot press;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is an enlarged schematic view of the portion B of FIG. 6;
FIG. 8 is an exploded view of the upper die portion of the hot press;
FIG. 9 is a schematic diagram of the connection between the carriage and the upper base;
FIG. 10 is an enlarged schematic view of portion C of FIG. 8;
FIG. 11 is an enlarged schematic view of the portion D of FIG. 8;
FIG. 12 is an enlarged schematic view of portion E of FIG. 8;
fig. 13 is an enlarged schematic view of the portion F in fig. 9;
FIG. 14 is a schematic perspective view of a portion of a flattening sheet;
FIG. 15 is a schematic perspective view of a steel back feeding device;
FIG. 16 is a schematic view of the structure of the press in a pressed state;
fig. 17 is a schematic view of the structure of the hot press in the charged state.
In the figure: 11-upper base, 111-first slide block, 112-second avoidance hole, 113-concave part, 114-ejector rod, 12-middle die holder, 13-lower base, 14-upright post, 15-die locking cylinder, 16-main cylinder,
21-upper die unit, 211-upper die pressing plate, 2111-boss, 212-upper die heat insulating plate, 213-upper die heating plate, 214-upper die mounting plate, 215-upper die plate, 216-fixing rod, 2161-spring, 217-stopper, 22-middle die unit, 23-lower die unit,
3-carriage, 31-sliding seat plate, 311-first guide rail, 312-second guide rail, 32-first connecting plate, 33-first connecting seat,
4-spreading plate, 41-second sliding block, 42-compressing cylinder, 421-compressing arm, 43-first locating pin, 44-feeding cylinder, 45-driving plate, 451-second locating pin,
5-a transposition air cylinder,
61-flattening motor, 611-driving disk, 612-eccentric shaft, 62-guide seat, 63-guide rod, 64-connecting rod, 65-second connecting seat,
71-guide posts, 72-guide sleeves, 73-pre-pressing plates, 74-second connecting plates, 75-electric push rods, 76-fixing frames,
8-steel back feeding device, 81-top plate, 82-bottom plate, 83-vertical beam, 84-limiting plate, 85-connecting column, 86-limiting column, 87-feeding cylinder, 88-feeding push rod,
9-material box, 91-body, 911-first avoiding hole, 912-first locating hole, 92-drawing plate and 921-second locating hole.
Detailed Description
Example 1
For convenience of description, the coordinate system is defined as shown in fig. 1, and the left-right direction is a transverse direction, the front-back direction is a longitudinal direction, and the up-down direction is a vertical direction.
As shown in fig. 1 and 2, a hot press with pre-pressing function includes a frame, the frame includes an upper base 11, a middle die base 12, a lower base 13, and four columns 14 connecting the upper base 11, the middle die base 12 and the lower base 13 from top to bottom, the four columns 14 are disposed on four corners of the frame, and the middle die base 12 can slide up and down along the columns 14. The left and right sides of the middle die holder 12 are respectively provided with a die locking cylinder 15 for driving the middle die holder 12 to move up and down.
The upper die unit 21, the middle die unit 22 and the lower die unit 23 are sequentially arranged in the machine body frame from top to bottom. Wherein the upper die unit 21 is fixedly arranged on the lower side surface of the upper base 11, and the middle die unit 22 is fixedly arranged on the upper side surface of the middle die base 12. The middle die unit 22 comprises a die fixing seat fixedly connected with the middle die holder 12, and a plurality of dies are fixedly arranged on the die fixing seat. A lower die unit 23 matched with the female dies is arranged below each female die in the middle die holder 12, and a master cylinder 16 for driving the lower die unit 23 to move up and down is arranged below each lower die unit 23. As a specific implementation manner, four female dies are fixedly arranged on the female die fixing seat in the embodiment, and the four female dies are arranged in a horizontal line.
As shown in fig. 3, 5 and 8, a carriage 3 is slidingly disposed under the upper base 11, and a first driving unit for driving the carriage 3 to move forward and backward is disposed between the upper base 11 and the carriage 3. The carriage 3 is provided with a flattening plate 4 and an upper die unit 21 in sequence from front to back. The flattening plate 4 is slidably connected with the carriage 3, and a second driving component for driving the flattening plate 4 to move back and forth is arranged between the flattening plate 4 and the carriage 3. The upper die unit 21 is fixedly connected with the carriage 3.
As shown in fig. 8 and 9, the carriage 3 includes two sliding seat plates 31 extending in the front-rear direction, a first connecting plate 32 is disposed between the two sliding seat plates 31 and located at the front side of the sliding seat plate 31, and two ends of the first connecting plate 32 are fixedly connected with the sliding seat plate 31 by welding respectively. The sliding seat plate 31 and the first connecting plate 32 together form a U-shaped structure with an opening facing the rear side. The upper side surface of the sliding seat plate 31 is fixedly provided with a first guide rail 311, and the lower side surface of the upper base 11 is fixedly provided with a first slider 111 matched with the first guide rail 311. The first driving part is a transposition air cylinder 5 arranged on the upper base 11, the cylinder body of the transposition air cylinder 5 is fixedly connected with the upper base 11, and the rod end of a piston rod of the transposition air cylinder 5 is fixedly connected with the sliding frame 3 through a first connecting seat 33.
As a specific embodiment, in this embodiment, two transposition cylinders 5 are fixedly disposed on the upper side surface of the upper base 11, and the two transposition cylinders 5 are respectively located on the left and right sides of the upper side surface of the upper base 11. The first connecting seat 33 is fixedly disposed at the front end of the sliding seat plate 31.
As shown in fig. 9, a second guide rail 312 is fixedly disposed on the lower side surface of the front end portion of the sliding seat plate 31, and as shown in fig. 8, a second slider 41 matched with the second guide rail 312 is fixedly disposed on the flattening plate 4. As shown in fig. 13, the second driving part includes a leveling motor 61 fixedly disposed on the first connecting plate 32 of the carriage 3, the leveling motor 61 is disposed on the upper side of the first connecting plate 32, and a power output shaft of the leveling motor 61 extends to the lower side of the first connecting plate 32 through the first connecting plate 32. A guide seat 62 is disposed on the first connecting plate 32 at the rear side of the flattening motor 61, a guide rod 63 capable of sliding back and forth relative to the carriage 3 is disposed in the guide seat 62, and the guide rod 63 is slidably connected with the guide seat 62. One end of the guide rod 63 is connected with the power output shaft of the flattening motor 61 through a connecting rod 64, and the other end of the guide rod 63 is fixedly connected with the flattening plate 4 through a second connecting seat 65. One end of the connecting rod 64 is hinged with the guide rod 63, and the other end of the connecting rod 64 is hinged with an eccentric shaft 612 on the power output shaft of the flattening motor 61. Preferably, a driving disc 611 is fixedly arranged on the power output shaft of the flattening motor 61, and the eccentric shaft 612 is fixedly arranged on the driving disc 611.
As shown in fig. 8 and 14, two pressing cylinders 42 for pressing the cartridge 9 onto the flattening plate 4 from bottom to top are provided on the flattening plate 4 at the rear side of the first connecting plate 32, and the two pressing cylinders 42 are symmetrically arranged on the left and right. The cylinder body of the compressing cylinder 42 is fixedly connected with the flattening plate 4, the rod end of the piston rod of the compressing cylinder 42 penetrates through the flattening plate 4 to extend to the lower side of the flattening plate 4, and a compressing arm 421 is fixedly arranged below the flattening plate 4 on the piston rod of the compressing cylinder 42. Preferably, the compacting cylinder 42 is a rotary compacting cylinder 42.
As shown in fig. 8 and 11, the body 91 of the cartridge 9 is provided with a first avoiding hole allowing the pressing arm 421 to pass through. When the device works, the pressing arm 421 of the pressing cylinder 42 passes through the first avoiding hole from top to bottom, so that the pressing arm 421 is positioned below the material box 9, then the pressing cylinder 42 works, and the piston rod is rotationally retracted, so that the material box 9 is pressed on the lower side surface of the flattening plate 4 from bottom to top.
Further, at least two first positioning pins 43 are disposed on the flattening plate 4, and first positioning holes 912 matched with the first positioning pins 43 are disposed on the body 91 of the magazine 9. As a specific embodiment, two first positioning pins 43 are disposed on the flattening plate 4 in this embodiment, and the two first positioning pins 43 are in one-to-one correspondence with the pressing cylinders 42, and the first positioning pins 43 are disposed at the rear sides of the corresponding pressing cylinders 42.
As shown in fig. 14, a driving plate 45 that can slide back and forth relative to the flattening plate 4 is disposed between the two pressing cylinders 42 at the lower side of the flattening plate 4, and a third driving member for driving the driving plate 45 to slide back and forth is disposed between the driving plate 45 and the flattening plate 4. The driving plate 45 is provided with a second positioning pin 451, and as shown in fig. 4 and 12, the drawing plate 92 of the cartridge 9 is provided with a second positioning hole 921 that is matched with the second positioning pin 451. As a specific embodiment, the third driving component in this embodiment is a feeding cylinder 44 disposed on the lower side surface of the flattening plate 4, and preferably, the feeding cylinder 44 is a rodless cylinder with a guide rod. The two ends of the cylinder body of the feeding cylinder 44 are fixedly connected with the flattening plate 4 respectively, and the driving plate 45 is fixedly arranged on the lower side surface of the sliding table of the feeding cylinder 44.
As shown in fig. 6 and 8, the upper die unit 21 includes an upper die pressing plate 211, an upper die heat insulating plate 212, an upper die heating plate 213, an upper die mounting plate 214, and an upper die plate 215 in this order from top to bottom, and the upper die pressing plate 211, the upper die heat insulating plate 212, the upper die heating plate 213, the upper die mounting plate 214, and the upper die plate 215 are connected as a unit by fastening connectors. The upper die pressing plate 211 is fixedly connected with the sliding seat plate 31 of the carriage 3.
As shown in fig. 5 and 6, the upper base 11 is provided with guide posts 71 that can move up and down relative to the upper base 11, and the number of the guide posts 71 is the same as that of the cavities of the hot press, and the positions of the guide posts 71 are aligned one by one, that is, the guide posts 71 are located right above the corresponding cavities. The upper base 11 is provided with a second avoidance hole 112 for accommodating the guide post 71, and a guide sleeve 72 matched with the guide post 71 is arranged in the second avoidance hole 112. The lower end of the guide post 71 is fixedly provided with a pre-pressing plate 73, the lower side surface of the upper base 11 is provided with a concave portion 113 for accommodating the pre-pressing plate 73, and when the guide post 71 is at the upper limit position, the pre-pressing plate 73 is positioned in the concave portion 113.
A second connecting plate 74 is arranged above the upper base 11, the upper ends of the guide posts 71 are fixedly connected with the second connecting plate 74, and a fourth driving component for driving the second connecting plate 74 to move up and down is arranged between the second connecting plate 74 and the upper base 11. As a specific embodiment, the fourth driving component in this embodiment is an electric push rod 75, a fixed side of the electric push rod 75 is fixedly connected with the upper base 11 through a fixing frame 76, and a moving side of the electric push rod 75 is fixedly connected with the second connecting plate 74.
Here, the fourth driving part may be a cylinder, the cylinder body of the cylinder is fixedly connected to the fixing frame 76, and the rod end of the piston rod of the cylinder passes through the upper side wall of the fixing frame 76 and is fixedly connected to the second connecting plate 74.
Further, as shown in fig. 6 and 7, the left and right sides of the upper mold pressing plate 211 are respectively provided with a boss 2111 extending to the lower side of the sliding seat plate 31, the boss 2111 is provided with a fixing rod 216 extending upward along the vertical direction, the upper end of the fixing rod 216 passes through the sliding seat plate 31 and extends to the upper side of the sliding seat plate 31, and a stopper 217 for preventing the fixing rod 216 from sliding off the sliding seat plate 31 is provided above the sliding seat plate 31 on the fixing rod 216. The fixing rod 216 is sleeved with a spring 2161 between the sliding seat plate 31 and the boss 2111. In a free state, the stopper 217 is pressed against the upper side of the sliding seat plate 31 by the spring 2161, and the upper pressing plate 211 is separated from the upper base 11, and the distance M between the upper pressing plate 211 and the upper base 11 is smaller than the distance N between the sliding seat plate 31 and the boss 2111.
Preferably, the fixing rod 216 is a screw, the lower end of the screw is fixedly connected with the boss 2111, and the head of the screw is used as a limiting block 217 to prevent the screw from sliding off the sliding seat plate 31.
The reason for this is that by providing the spring 2161, the upper die plate 211 is separated from the upper base 11 in a free state, so that friction between the upper die plate 211 and the upper base 11 can be avoided when the upper die unit 21 is moved back and forth, and sliding resistance is reduced. When the mold is closed and pressed, the upper mold unit 21 moves upwards under the action of the main oil cylinder 16 until the upper mold pressing plate 211 is pressed on the upper base 11, so that the acting force of the main oil cylinder 16 is born by the upper base 11 instead of the linear guide rail pair between the carriage 3 and the upper base 11, the linear guide rail pair between the carriage 3 and the upper base 11 only needs to bear the elastic acting force of the spring 2161, and damage to the linear guide rail pair between the carriage 3 and the upper base 11 due to overlarge stress can be avoided.
Further, grooves for accommodating the springs 2161 are provided on the upper side of the boss 2111 and the lower side of the sliding seat plate 31, respectively.
As shown in fig. 1 and 2, a steel back feeding device 8 for holding a steel back is arranged at the rear side of the hot press, and a material box (not shown in the drawings) for holding a finished product is arranged at the rear side of the steel back feeding device 8.
As shown in fig. 15, the steel back feeding device 8 includes a top plate 81 and a bottom plate 82, two vertical beams 83 are disposed between the top plate 81 and the bottom plate 82, and the top plate 81, the bottom plate 82 and the vertical beams 83 together form a supporting frame with a square mechanism. A limiting plate 84 arranged parallel to the top plate 81 is arranged above the supporting frame, and the limiting plate 84 is fixedly connected with the top plate 81 through a connecting column 85. The limiting plate 84 is provided with a plurality of limiting holes, and the shape of the limiting holes is identical to that of the steel back. The number and the mutual position relation of the limiting holes are the same as the number and the mutual position relation of the die cavities of each row on the hot press, so that a one-to-one correspondence is formed. As a specific implementation manner, the hot press in this embodiment has four mold cavities, and the four mold cavities are arranged in a horizontal line, and correspondingly, the limiting plate 84 is provided with four limiting holes, and the four limiting holes are arranged in a horizontal line.
A plurality of limit posts 86 are arranged between the limit plate 84 and the top plate 81 and outside each limit hole, and the steel back only has the freedom degree of up-and-down movement under the limit action of the limit posts 86. The automatic feeding device is characterized in that feeding air cylinders 87 corresponding to the limiting holes one by one are arranged in the supporting frame, the cylinder bodies of the feeding air cylinders 87 are fixedly connected with the supporting frame, feeding push rods 88 are fixedly arranged at the rod ends of piston rods of the feeding air cylinders 87, and the upper ends of the feeding push rods 88 penetrate through the top plate 81 and are abutted against the steel backs in the corresponding limiting holes. The top plate 81 is provided with a guide sliding sleeve matched with the feeding push rod 88.
The working process is as follows:
first, the piston rod of the transposition cylinder 5 stretches out to drive the sliding frame 3 to move forward to the limit position.
Secondly, the main material is added into the material box 9, and then a second driving component for driving the spreading plate 4 to shake back and forth acts to drive the spreading plate 4 to shake back and forth, so that the main material is flattened.
Thirdly, the auxiliary materials are added into the material box 9, and the second driving part for driving the spreading plate 4 to shake back and forth acts to drive the spreading plate 4 to shake back and forth, so that the auxiliary materials are flattened.
Fourth, the transposition cylinder 5 works to drive the sliding frame 3 to move backwards to the limit position, and at this time, the material box 9 is positioned in the hot press.
Fifth, the piston rods of the main cylinder 16 and the mold locking cylinder 15 extend to drive the middle mold unit 22 and the lower mold unit 23 to synchronously move upwards, after the middle mold unit 22 moves to a specified position, the mold locking cylinder 15 stops acting, the piston rod of the main cylinder 16 continues to extend to drive the lower mold unit 23 to move upwards until the upper plane of the lower mold unit 23 is level with the upper plane of the middle mold unit 22.
Sixth, the fourth driving component acts to drive the pre-pressing plate 73 to move downwards, at this time, the drawing plate 92 of the magazine 9 is in a closed state, and the pre-pressing plate 73 pre-presses the raw materials in the guide cylinder of the magazine 9.
Seventh, the feeding cylinder 44 acts to drive the drawing plate 92 of the magazine 9 to open, and then the fourth driving part acts to drive the pre-pressing plate 73 to move downwards, at the same time, the piston rod of the master cylinder 16 retracts, and the retracting speed is the same as the moving speed of the pre-pressing plate 73. In this way, the pre-pressed stock is moved downward as a whole under the clamping of the pre-press plate 73 and the lower die unit 23 until the stock is completely introduced into the die cavity. Then, the piston rods of the master cylinder 16 and the mold locking cylinder 15 are retracted, and the middle mold unit 22 and the lower mold unit 23 are driven to synchronously move downwards to the designated positions. At the same time, the fourth driving member operates to drive the pre-pressing plate 73 to move upwards into the recess 113 of the upper base 11.
Eighth, the transposition cylinder 5 acts to drive the carriage 3 to move forward to the limit position, at this time, the upper die unit 21 is located in the hot press, and then the steel back is placed on the middle die unit 22.
Ninth, the master cylinder 16 and the mold locking cylinder 15 act to drive the middle mold unit 22 and the lower mold unit 23 to synchronously move upwards to complete mold closing, and then the master cylinder 16 acts to complete the pressing of the brake pads.
Further, as shown in fig. 5 and 6, the lower side of the magazine 9 is located above the lower side of the upper die unit 21, i.e., a certain distance P exists between the lower side of the magazine 9 and the lower side of the upper die unit 21. The upper base 11 is provided with ejector rods 114 on the left and right sides of the carriage 3, as shown in fig. 17, when the lower end of the ejector rods 114 abuts against the middle die holder 12, the upper side surface of the middle die unit 22 is just attached to the lower side surface of the magazine 9. The reason for this design is that it is possible to avoid that the distance by which the middle die unit 22 rises due to a malfunction is too large, thereby pressing the cartridge 9. Since a certain distance P exists between the lower side surface of the magazine 9 and the lower side surface of the upper die unit 21, as shown in fig. 16, when the middle die unit 22 contacts with the upper die unit 21 during the pressing process, after the die assembly is completed, the lower end of the ejector 114 is located above the middle die holder 12, and the distance is also P, so that the existence of the ejector 114 does not affect the pressing process.
Example two
The second driving part is a flattening cylinder arranged on a first connecting plate 32 of the sliding frame 3, the flattening cylinder adopts a sliding table cylinder, the cylinder body of the flattening cylinder is fixedly connected with the first connecting plate 32, and the sliding table of the flattening cylinder is fixedly connected with the flattening plate 4 through a screw.
The rest of the structure is the same as that of the first embodiment.
Example III
A third connecting plate is disposed between the two sliding seat plates 31 at the rear side of the upper die unit 21, and the sliding seat plates 31, the first connecting plate 32 and the third connecting plate together form a square frame, and the other structures are the same as those of the first embodiment.
Claims (7)
1. The utility model provides a hot press with pre-compaction function, includes the fuselage frame, the fuselage frame include base, well die holder, lower base and with last base, well die holder and four stands that lower base connect, its characterized in that: the middle die holder can slide up and down along the upright post, the left side and the right side of the middle die holder are respectively provided with a die locking oil cylinder for driving the middle die holder to move up and down, an upper die unit, a middle die unit and a lower die unit are sequentially arranged in the machine body frame from top to bottom, the middle die unit is fixedly arranged on the middle die holder, the middle die unit comprises a die fixing seat fixedly connected with the middle die holder, a plurality of dies are fixedly arranged on the die fixing seat, a lower die unit matched with each die is arranged below each die in the middle die holder, and a main oil cylinder for driving the lower die unit to move up and down is arranged below each lower die unit;
the lower side of the upper base is slidingly provided with a sliding frame, a first driving part for driving the sliding frame to move forwards and backwards is arranged between the upper base and the sliding frame, the first driving part is a transposition air cylinder arranged on the upper base, a cylinder body of the transposition air cylinder is fixedly connected with the upper base, and a rod end of a piston rod of the transposition air cylinder is fixedly connected with the sliding frame through a first connecting seat;
the sliding frame is sequentially provided with a spreading plate and an upper die unit from front to back;
the flattening plate is connected with the sliding frame in a sliding way, and a second driving part for driving the flattening plate to move back and forth is arranged between the flattening plate and the sliding frame;
the compression cylinder is arranged on the spreading plate and used for compressing the material box on the spreading plate;
the spreading plate is provided with a driving plate, a third driving part for driving the driving plate to slide back and forth is arranged between the driving plate and the spreading plate, the driving plate is provided with a second locating pin, and the drawing plate of the material box is provided with a second locating hole matched with the second locating pin;
the upper base is provided with a guide post which can move up and down relative to the upper base, the lower end of the guide post is fixedly provided with a pre-pressing plate, and a fourth driving part for driving the guide post to move up and down is arranged between the guide post and the upper base;
the second driving part comprises a flattening motor and a guide seat which are fixedly arranged on the sliding frame, a guide rod is arranged in the guide seat in a sliding manner, one end of the guide rod is connected with a power output shaft of the flattening motor through a connecting rod, the other end of the guide rod is fixedly connected with the flattening plate, one end of the connecting rod is hinged with the guide rod, and the other end of the connecting rod is hinged with an eccentric shaft on the power output shaft of the flattening motor;
the power output shaft of the flattening motor is fixedly provided with a driving disc, and the eccentric shaft is fixedly arranged on the driving disc.
2. The hot press with pre-pressing function according to claim 1, wherein: the lower side of the upper base is provided with a concave part for accommodating the pre-pressing plate, and when the guide post is at the upper limit position, the pre-pressing plate is positioned in the concave part.
3. The hot press with pre-pressing function according to claim 1, wherein: the left and right sides of going up the mould unit be provided with the boss respectively, the boss on be provided with the dead lever, just the upper end of dead lever pass the balladeur train extend to the top of balladeur train, the dead lever on be located the top of balladeur train be provided with the stopper, the dead lever on be located the balladeur train and boss between the cover be equipped with the spring, and under free state, the mould unit break away from with last base in the effect of spring.
4. A hot press with pre-pressing function according to claim 3, characterized in that: grooves for accommodating the springs are respectively arranged on the upper side face of the boss and the lower side face of the sliding frame.
5. The hot press with pre-pressing function according to claim 1, wherein: the lower side of the material box is located above the lower side of the upper die unit, the upper base is provided with a push rod, and when the lower end of the push rod is propped against the middle die holder, the upper side of the middle die unit is attached to the lower side of the material box.
6. The hot press with pre-pressing function according to claim 1, wherein: the spreading plate is provided with a first locating pin, and the body of the material box is provided with a first locating hole matched with the first locating pin.
7. The hot press with pre-pressing function according to claim 1, wherein: the rear side of hot press is provided with steel backing material feeding unit, steel backing material feeding unit include the support frame of constituteing by roof, bottom plate and vertical beam, the top of support frame fixedly be provided with the limiting plate, the limiting plate on be provided with spacing hole, limiting plate and roof between be located the outside in spacing hole and be provided with spacing post, and under the restriction of spacing post, the steel backing only has the degree of freedom of reciprocating, the support frame in be provided with the feeding cylinder with spacing hole one-to-one, the fixed feeding push rod that is provided with in rod of piston rod of feeding cylinder, the upper end of feeding push rod passes the roof and supports and lean on corresponding spacing downthehole steel backing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422095.2A CN114103215B (en) | 2021-11-26 | 2021-11-26 | Hot press with pre-compaction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422095.2A CN114103215B (en) | 2021-11-26 | 2021-11-26 | Hot press with pre-compaction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114103215A CN114103215A (en) | 2022-03-01 |
| CN114103215B true CN114103215B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111422095.2A Active CN114103215B (en) | 2021-11-26 | 2021-11-26 | Hot press with pre-compaction function |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157887A (en) * | 1977-06-24 | 1979-06-12 | Gebruder Netzsch, Maschinenfabrik Gmbh & Co. | Pressing die for producing ceramic moulds from a pulverulent mass |
| US5176923A (en) * | 1989-07-24 | 1993-01-05 | Ito Kogyo Kabushiki Kaisha | Mold-pressing apparatus incorporating electric servo motor and linking mechanism |
| CN104816500A (en) * | 2015-05-06 | 2015-08-05 | 湖州双力自动化科技装备有限公司 | Hot pressing apparatus |
| CN208593112U (en) * | 2018-06-28 | 2019-03-12 | 山东金麒麟股份有限公司 | Brake block hot press mold feeding clearing apparatus |
| CN209409371U (en) * | 2018-11-30 | 2019-09-20 | 济南悦创液压机械制造有限公司 | A kind of drum-type brake pad hot press |
| CN212979351U (en) * | 2020-06-15 | 2021-04-16 | 嘉兴飞杰机械科技有限公司 | Die assembly for powder forming press |
| CN214056129U (en) * | 2020-11-18 | 2021-08-27 | 济南悦创液压机械制造有限公司 | Brake block hot press that can independently accuse pressure |
-
2021
- 2021-11-26 CN CN202111422095.2A patent/CN114103215B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157887A (en) * | 1977-06-24 | 1979-06-12 | Gebruder Netzsch, Maschinenfabrik Gmbh & Co. | Pressing die for producing ceramic moulds from a pulverulent mass |
| US5176923A (en) * | 1989-07-24 | 1993-01-05 | Ito Kogyo Kabushiki Kaisha | Mold-pressing apparatus incorporating electric servo motor and linking mechanism |
| CN104816500A (en) * | 2015-05-06 | 2015-08-05 | 湖州双力自动化科技装备有限公司 | Hot pressing apparatus |
| CN208593112U (en) * | 2018-06-28 | 2019-03-12 | 山东金麒麟股份有限公司 | Brake block hot press mold feeding clearing apparatus |
| CN209409371U (en) * | 2018-11-30 | 2019-09-20 | 济南悦创液压机械制造有限公司 | A kind of drum-type brake pad hot press |
| CN212979351U (en) * | 2020-06-15 | 2021-04-16 | 嘉兴飞杰机械科技有限公司 | Die assembly for powder forming press |
| CN214056129U (en) * | 2020-11-18 | 2021-08-27 | 济南悦创液压机械制造有限公司 | Brake block hot press that can independently accuse pressure |
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| Publication number | Publication date |
|---|---|
| CN114103215A (en) | 2022-03-01 |
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