CN217432835U - Automatic bending machine - Google Patents

Abstract

The utility model belongs to the field of metal part processing, in particular to an automatic bending machine, which comprises a bottom support frame, a workbench, a positioning mechanism, a bending mechanism, a moving mechanism and a fixing mechanism, wherein the workbench is arranged above the bottom support frame, the moving mechanism is arranged above the workbench, the fixing mechanism is arranged at the rear part of the moving mechanism, the positioning mechanism is arranged below and at the front part of the fixing mechanism, the bending mechanism is arranged at the rear part of the fixing mechanism, the moving mechanism comprises a sliding shaft, a moving seat, a bearing seat, a placing plate, a portal frame and a first guide rail, a first servo motor is utilized to drive a first ball screw rod to rotate, a moving beam can move, a stepping motor drives the rotating shaft to carry out angle adjustment, a rotating disc drives an electric push rod to rotate, and an electric push rod drives a rubber disc to move, the parts are compressed, the angle is adjusted, manual operation can be reduced, and the working efficiency is improved.

Description

Automatic bending machine

Technical Field

The utility model belongs to the metal parts machining field specifically is to relate to an automatic bender.

Background

Bending-under the pressure of an upper die or a lower die of a bending machine, a metal plate is subjected to elastic deformation firstly and then enters plastic deformation, at the beginning stage of plastic bending, the plate is freely bent, along with the pressure applied to the plate by the upper die or the lower die, the plate is gradually abutted to the inner surface of a V-shaped groove of the lower die, the curvature radius and the bending force arm are gradually reduced, the pressing is continued until the stroke is ended, so that the upper die and the lower die are fully abutted to each other at three points of the plate, at the moment, the V-shaped bending is finished, the V-shaped bending is commonly called bending, the existing equipment needs to manually hold parts for fixing for multiple times during bending, and then bending is carried out, and the bending efficiency is very low in the mode.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic bender.

The utility model discloses the technical scheme who adopts as follows:

an automatic bending machine comprises a bottom support frame, a workbench, a positioning mechanism, a bending mechanism, a moving mechanism and a fixing mechanism, wherein the workbench is arranged above the bottom support frame, the moving mechanism is arranged above the workbench, the fixing mechanism is arranged at the rear part of the moving mechanism, the positioning mechanism is arranged below the moving mechanism and in front of the fixing mechanism, the bending mechanism is arranged at the rear part of the fixing mechanism, the moving mechanism comprises a sliding shaft, a moving seat, a bearing seat, a placing plate, a portal frame, a first guide rail, a first ball screw, a first servo motor, a moving beam, a stepping motor, a rotating shaft, a connecting disc, an electric push rod and a rubber disc, two sliding shafts are arranged inside the workbench, the moving seat is arranged outside the sliding shafts, and the bearing seat is arranged above the moving seat, the placing plate is arranged above the bearing seat, the portal frame is arranged above the workbench, the first guide rail and the first ball screw are respectively arranged above and at two sides of the portal frame, the first servo motor is arranged at the front part of the first ball screw, the moving beam is arranged outside the first guide rail and the first ball screw, the stepping motor is arranged above the moving beam, the rotating shaft is arranged below the moving beam, the connecting disc is arranged below the rotating shaft, the electric push rod is arranged below the connecting disc, and the rubber disc is arranged below the electric push rod; the rear part of the portal frame is provided with the fixing mechanism.

Preferably: the positioning mechanism comprises a supporting plate, a first air cylinder and a rubber seat, wherein the two supporting plates are arranged above the workbench and below the portal frame, the first air cylinder is arranged outside the supporting plate, and the rubber seat is arranged at the output end of the first air cylinder.

So set up, first cylinder drives the rubber seat carries out part position control.

Preferably: the bending mechanism comprises a first hydraulic cylinder, a connecting plate, a lifting die, a supporting seat, a second cylinder and a push plate, the supporting seat is arranged above and behind the workbench, the second cylinder is arranged behind the supporting seat, the push plate is arranged in front of the second cylinder, the lifting die is arranged in front of the push plate, the lifting die penetrates through the workbench, the connecting plate is arranged below the lifting die, and the first hydraulic cylinder is arranged below the connecting plate.

So set up, first pneumatic cylinder drives lift the mould and carry out the part and bend, the second cylinder is bent once more to the part and is stereotyped.

Preferably: the fixing mechanism comprises support columns, second guide rails, second ball screws, a second servo motor, a moving frame and an upper fixing frame, the support columns are arranged at the rear portions of the support plates, the support columns are internally provided with the second guide rails and the second ball screws respectively, the second servo motor is arranged above the second ball screws, the second guide rails and the second ball screws are arranged outside the moving frame, and the upper fixing frame is arranged below the moving frame.

According to the arrangement, the second servo motor drives the second ball screw to rotate, so that the moving frame drives the upper fixed die to move.

Preferably: fixed establishment includes the support column, removes the frame, goes up fixed mould, tie-beam, optical axis, second pneumatic cylinder, the backup pad rear portion is provided with two the support column, the support column top is provided with the tie-beam, the support column is inside all to be provided with the optical axis, the optical axis outside is provided with remove the frame, the tie-beam below is located remove the frame top and be provided with the second pneumatic cylinder, remove the frame below and be provided with go up the fixed mould.

So set up, the second pneumatic cylinder drives the removal frame removes, makes go up the fixed mould and remove.

Preferably: the bottom support frame, the sliding shaft and the portal frame are all welded and connected with the workbench, the movable seat is connected with the sliding shaft in a sliding way, the bearing seat is connected with the movable seat through a bolt, the placing plate is connected with the bearing seat bearing, the first guide rail and the first servo motor are both connected with the portal frame through bolts, the first ball screw is connected with the portal frame bearing, the first servo motor is connected with the first ball screw coupler, the movable beam is connected with the first guide rail in a sliding way and is in threaded connection with the first ball screw, the stepping motor is connected with the movable beam through bolts, the rotating shaft is connected with the stepping motor coupler, the rotating shaft is connected with the moving beam bearing, the connecting disc is connected with the rotating shaft in a welding mode, and the electric push rod is connected with the connecting disc and the rubber disc through bolts respectively.

So set up, first servo motor drives first ball screw is rotatory, makes the walking beam can remove, step motor drives the rotation axis carries out angular adjustment, makes the rotary disk drives electric push rod is rotatory, electric push rod drives the rubber disc removes, compresses tightly the part to angle of adjustment.

Preferably: the supporting plate is connected with the workbench in a welded mode, and the first air cylinder is connected with the supporting plate and the rubber seat through bolts respectively.

So set up, first cylinder drives the rubber seat carries out part position control.

Preferably: the first hydraulic cylinder is respectively connected with the connecting plate and the workbench through bolts, the lifting die is connected with the connecting plate through bolts, the supporting seat is connected with the workbench in a welded mode, and the second cylinder is respectively connected with the supporting seat and the push plate through bolts.

So set up, first pneumatic cylinder drives lift the mould and carry out the part and bend, the second cylinder is bent once more to the part and is stereotyped.

Preferably: the support column respectively with workstation with portal frame welded connection, the second guide rail with second servo motor respectively with support column bolted connection, the second ball screw with support column bearing is connected, the second servo motor with second ball screw coupling joint, remove the frame with second guide rail sliding connection, remove the frame with second ball screw threaded connection, go up the fixed mould with remove a bolted connection.

So set up, second servo motor drives the rotation of second ball screw makes the removal frame drives go up the fixed mould and remove.

Preferably: the support column respectively with workstation with portal frame welded connection, the tie-beam with the optical axis all with support column welded connection, remove the frame with optical axis sliding connection, go up the fixed mould with remove a bolted connection, the second pneumatic cylinder respectively with remove the frame with tie-beam bolted connection.

So set up, the second pneumatic cylinder drives the removal frame removes, makes go up the fixed mould and remove.

The utility model has the advantages that: utilize first servo motor to drive first ball screw rotatory, make the walking beam can remove, drive the rotation axis through step motor and carry out angular adjustment, make the rotating disc drive electric push rod rotatory, utilize electric push rod to drive the rubber disc and remove, compress tightly the part to angle of adjustment can reduce manual operation, improves work efficiency.

Drawings

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

fig. 1 is a schematic structural view of embodiment 1 of an automatic bending machine according to the present invention;

fig. 2 is a schematic perspective view of a first viewing angle of embodiment 1 of the automatic bending machine according to the present invention;

fig. 3 is a perspective view of a second viewing angle of embodiment 1 of the automatic bending machine according to the present invention;

fig. 4 is a schematic perspective view of a moving mechanism of the automatic bending machine according to the present invention;

fig. 5 is a schematic perspective view of a bending mechanism of the automatic bending machine of the present invention;

fig. 6 is a sectional view of a fixing mechanism of embodiment 1 of the automatic bending machine according to the present invention;

fig. 7 is a schematic perspective view of embodiment 2 of the automatic bending machine according to the present invention;

fig. 8 is a sectional view of a fixing mechanism of embodiment 2 of the automatic bending machine of the present invention.

The reference numerals are explained below:

1. a bottom support frame; 2. a work table; 3. a moving mechanism; 4. a positioning mechanism; 5. a bending mechanism; 6. A fixing mechanism; 301. a sliding shaft; 302. a movable seat; 303. a bearing seat; 304. placing the plate; 305. a gantry; 306. a first guide rail; 307. a first ball screw; 308. a first servo motor; 309. a moving beam; 310. a stepping motor; 311. a rotating shaft; 312. a connecting disc; 313. an electric push rod; 314. a rubber disc; 41. a support plate; 42. a first cylinder; 43. a rubber seat; 51. a first hydraulic cylinder; 52. a connecting plate; 53. Lifting the die; 54. a supporting seat; 55. a second cylinder; 56. pushing a plate; 61. a support pillar; 62. a second guide rail; 63. a second ball screw; 64. a second servo motor; 65. a movable frame; 66. an upper fixed mold; 601. A connecting beam; 602. an optical axis; 603. and a second hydraulic cylinder.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The present invention will be further described with reference to the following examples and drawings.

Example 1

As shown in fig. 1-6, an automatic bending machine comprises a bottom support frame 1, a workbench 2, a positioning mechanism 4, a bending mechanism 5, a moving mechanism 3 and a fixing mechanism 6, wherein the workbench 2 is arranged above the bottom support frame 1, the moving mechanism 3 is arranged above the workbench 2, the fixing mechanism 6 is arranged at the rear part of the moving mechanism 3, the positioning mechanism 4 is arranged below the moving mechanism 3 and in front of the fixing mechanism 6, the bending mechanism 5 is arranged at the rear part of the fixing mechanism 6, the moving mechanism 3 comprises a sliding shaft 301, a moving seat 302, a bearing seat 303, a placing plate 304, a portal frame 305, a first guide rail 306, a first ball screw 307, a first servo motor 308, a moving beam 309, a stepping motor 310, a rotating shaft 311, a connecting disk 312, an electric push rod 313 and a rubber disk 314, two sliding shafts 301 are arranged inside the workbench 2, the moving seat 302 is arranged outside the sliding shaft 301, a bearing seat 303 is arranged above the moving seat 302, a placing plate 304 is arranged above the bearing seat 303, a portal frame 305 is arranged above the workbench 2, a first guide rail 306 and a first ball screw 307 are respectively arranged above the portal frame 305 and positioned at two sides, a first servo motor 308 is arranged at the front part of the first ball screw 307, moving beams 309 are arranged outside the first guide rail 306 and the first ball screw 307, a stepping motor 310 is arranged above the moving beams 309, a rotating shaft 311 is arranged below the moving beams 309, a connecting disc 312 is arranged below the rotating shaft 311, an electric push rod 313 is arranged below the connecting disc 312, and a rubber disc 314 is arranged below the electric push rod 313; the rear part of the portal frame 305 is provided with a fixing mechanism 6.

Preferably: the positioning mechanism 4 comprises a support plate 41, a first air cylinder 42 and a rubber seat 43, two support plates 41 are arranged above the workbench 2 and below the portal frame 305, the first air cylinder 42 is arranged on the outer side of each support plate 41, and the rubber seat 43 is arranged at the output end of each first air cylinder 42; the bending mechanism 5 comprises a first hydraulic cylinder 51, a connecting plate 52, a lifting die 53, a supporting seat 54, a second air cylinder 55 and a push plate 56, the supporting seat 54 is arranged above the workbench 2 and at the rear part, the second air cylinder 55 is arranged at the rear part of the supporting seat 54, the push plate 56 is arranged at the front part of the second air cylinder 55, the lifting die 53 is arranged at the front part of the push plate 56, the lifting die 53 penetrates through the workbench 2, the connecting plate 52 is arranged below the lifting die 53, and the first hydraulic cylinder 51 is arranged below the connecting plate 52; the fixing mechanism 6 comprises a supporting column 61, a second guide rail 62, a second ball screw 63, a second servo motor 64, a moving frame 65 and an upper fixed frame 66, the two supporting columns 61 are arranged at the rear part of the supporting plate 41, the second guide rail 62 and the second ball screw 63 are respectively arranged inside the supporting column 61, the second servo motor 64 is arranged above the second ball screw 63, the moving frame 65 is arranged outside the second guide rail 62 and the second ball screw 63, and the upper fixed frame 66 is arranged below the moving frame 65; the bottom support frame 1, the sliding shaft 301 and the portal frame 305 are all connected with the workbench 2 in a welding mode, the moving base 302 is connected with the sliding shaft 301 in a sliding mode, the bearing seat 303 is connected with the moving base 302 in a bolt mode, the placing plate 304 is connected with the bearing seat 303 in a bearing mode, the first guide rail 306 and the first servo motor 308 are both connected with the portal frame 305 in a bolt mode, the first ball screw 307 is connected with the portal frame 305 in a bearing mode, the first servo motor 308 is connected with a first ball screw 307 in a coupling mode, the moving beam 309 is connected with the first guide rail 306 in a sliding mode, the moving beam 309 is connected with the first ball screw 307 in a threaded mode, the stepping motor 310 is connected with the moving beam 309 in a bolt mode, the rotating shaft 311 is connected with the stepping motor 310 in a coupling mode, the rotating shaft 311 is connected with the moving beam bearing 309 in a welding mode, the connecting disc 312 is connected with the rotating shaft 311 in a welding mode, and the electric push rod 313 is respectively connected with the connecting disc 312 and the rubber disc 314 in a bolt mode; the supporting plate 41 is connected with the workbench 2 in a welding way, and the first air cylinder 42 is respectively connected with the supporting plate 41 and the rubber seat 43 through bolts; the first hydraulic cylinder 51 is respectively in bolted connection with the connecting plate 52 and the workbench 2, the lifting die 53 is in bolted connection with the connecting plate 52, the supporting seat 54 is in welded connection with the workbench 2, and the second cylinder 55 is respectively in bolted connection with the supporting seat 54 and the push plate 56; the supporting column 61 is respectively connected with the workbench 2 and the portal frame 305 in a welding mode, the second guide rail 62 and the second servo motor 64 are respectively connected with the supporting column 61 through bolts, the second ball screw 63 is in bearing connection with the supporting column 61, the second servo motor 64 is in coupling connection with the second ball screw 63, the moving frame 65 is in sliding connection with the second guide rail 62, the moving frame 65 is in threaded connection with the second ball screw 63, and the upper fixed die 66 is connected with the moving frame 65 through bolts.

Example 2

As shown in fig. 4, 5, 7 and 8, the present embodiment is different from embodiment 1 in that: the fixing mechanism 6 comprises supporting columns 61, a moving frame 65, an upper fixed mold 66, a connecting beam 601, an optical axis 602 and a second hydraulic cylinder 603, two supporting columns 61 are arranged at the rear part of the supporting plate 41, the connecting beam 601 is arranged above the supporting columns 61, the optical axis 602 is arranged inside the supporting columns 61, the moving frame 65 is arranged outside the optical axis 602, the second hydraulic cylinder 603 is arranged below the connecting beam 601 and above the moving frame 65, and the upper fixed mold 66 is arranged below the moving frame 65; the supporting column 61 is respectively welded with the workbench 2 and the portal frame 305, the connecting beam 601 and the optical axis 602 are both welded with the supporting column 61, the moving frame 65 is slidably connected with the optical axis 602, the upper fixed die 66 is bolted with the moving frame 65, and the second hydraulic cylinder 603 is respectively bolted with the moving frame 65 and the connecting beam 601.

The working principle is as follows: firstly, a part to be processed is placed on a placing plate 304, a first servo motor 308 is started to drive a first ball screw 307 to rotate, a moving beam 309 drives a rubber disc 314 to move to the upper part of the part, an electric push rod 313 is started to drive the rubber disc 314 to move, the part is compressed, the first servo motor 308 is started to drive the part to move to the front of a fixed mould 66, an electric push rod 313 is withdrawn, a first air cylinder 42 is started to drive a rubber seat 43 to adjust the position of the part, then the first air cylinder 42 is withdrawn, the electric push rod 313 is started to continuously compress the part, the first servo motor 308 is started to drive the part to move to the lower part of the fixed mould 66, a second servo motor 64 is started to drive a second ball screw 63 to rotate, the moving frame 65 drives the fixed mould 66 to compress the part, at the moment, the first hydraulic cylinder 51 is started to drive a lifting mould 53 to ascend, the part is bent, the first hydraulic cylinder 51 is withdrawn after the part is completely, the second air cylinder 55 is started to drive the push plate 56 to level the part, the second air cylinder 55 is retracted to retract the lifting die 53 after the part is leveled, the first servo motor 308 is started to drive the part to retreat to a proper position, the stepping motor 310 is started to drive the rotating shaft 311 to rotate, the part is subjected to angle adjustment, the part is continuously moved to the lower side of the upper fixed die 66 after the adjustment is completed to be compressed and bent again until the part is machined, or the second hydraulic cylinder 603 is started to drive the moving frame 65 and the upper fixed die 66 to move, and the part is fixed.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. The utility model provides an automatic bending machine, includes bottom sprag frame (1), workstation (2), positioning mechanism (4), bending mechanism (5), its characterized in that: still include moving mechanism (3) and fixed establishment (6), bottom sprag frame (1) top is provided with workstation (2), workstation (2) top is provided with moving mechanism (3), moving mechanism (3) rear portion is provided with fixed establishment (6), moving mechanism (3) below is located fixed establishment (6) front portion is provided with positioning mechanism (4), fixed establishment (6) rear portion is provided with bending mechanism (5), moving mechanism (3) include sliding shaft (301), remove seat (302), bearing frame (303), place board (304), portal frame (305), first guide rail (306), first ball screw (307), first servo motor (308), removal roof beam (309), step motor (310), rotation axis (311), connection pad (312), electric push rod (313), The rubber disc (314), two sliding shafts (301) are arranged inside the workbench (2), the moving base (302) is arranged outside the sliding shafts (301), the bearing block (303) is arranged above the moving base (302), the placing plate (304) is arranged above the bearing block (303), the portal frame (305) is arranged above the workbench (2), the first guide rail (306) and the first ball screw (307) are respectively arranged above the portal frame (305) and on two sides, the first servo motor (308) is arranged on the front portion of the first ball screw (307), the moving beam (309) is arranged outside the first guide rail (306) and the first ball screw (307), the stepping motor (310) is arranged above the moving beam (309), the rotating shaft (311) is arranged below the moving beam (309), the connecting disc (312) is arranged below the rotating shaft (311), the electric push rod (313) is arranged below the connecting disc (312), and the rubber disc (314) is arranged below the electric push rod (313); the rear part of the portal frame (305) is provided with the fixing mechanism (6).

2. An automatic bending machine according to claim 1, characterized in that: positioning mechanism (4) are including backup pad (41), first cylinder (42), rubber seat (43), workstation (2) top is located portal frame (305) below is provided with two backup pad (41), the backup pad (41) outside is provided with first cylinder (42), first cylinder (42) output is provided with rubber seat (43).

3. An automatic bending machine according to claim 1, characterized in that: the bending mechanism (5) comprises a first hydraulic cylinder (51), a connecting plate (52), a lifting die (53), a supporting seat (54), a second cylinder (55) and a push plate (56), the supporting seat (54) is arranged above the workbench (2) and at the rear part of the workbench (2), the second cylinder (55) is arranged at the rear part of the supporting seat (54), the push plate (56) is arranged at the front part of the second cylinder (55), the lifting die (53) is arranged at the front part of the push plate (56), the lifting die (53) penetrates through the workbench (2), the connecting plate (52) is arranged below the lifting die (53), and the first hydraulic cylinder (51) is arranged below the connecting plate (52).

4. An automatic bending machine according to claim 2, characterized in that: fixing mechanism (6) are including support column (61), second guide rail (62), second ball screw (63), second servo motor (64), remove frame (65), go up fixed mould (66), backup pad (41) rear portion is provided with two support column (61), support column (61) inside is provided with respectively second guide rail (62) with second ball screw (63), second ball screw (63) top is provided with second servo motor (64), second guide rail (62) with second ball screw (63) outside is provided with remove frame (65), it is provided with to remove frame (65) below go up fixed mould (66).

5. An automatic bending machine according to claim 2, characterized in that: fixed establishment (6) are including support column (61), removal frame (65), go up fixed mould (66), tie-beam (601), optical axis (602), second pneumatic cylinder (603), backup pad (41) rear portion is provided with two support column (61), support column (61) top is provided with tie-beam (601), support column (61) inside all is provided with optical axis (602), optical axis (602) outside is provided with remove frame (65), tie-beam (601) below is located remove frame (65) top is provided with second pneumatic cylinder (603), remove frame (65) below is provided with go up fixed mould (66).

6. An automatic bending machine according to claim 1, characterized in that: the bottom support frame (1), the sliding shaft (301) and the portal frame (305) are welded and connected with the workbench (2), the moving seat (302) is connected with the sliding shaft (301) in a sliding manner, the bearing seat (303) is connected with the moving seat (302) through a bolt, the placing plate (304) is connected with the bearing seat (303) through a bearing, the first guide rail (306) and the first servo motor (308) are connected with the portal frame (305) through a bolt, the first ball screw (307) is connected with the portal frame (305) through a bearing, the first servo motor (308) is connected with the first ball screw (307) through a coupler, the moving beam (309) is connected with the first guide rail (306) in a sliding manner, the moving beam (309) is connected with the first ball screw (307) through a thread, and the stepping motor (310) is connected with the moving beam (309) through a bolt, the rotating shaft (311) is connected with a coupler of the stepping motor (310), the rotating shaft (311) is connected with a bearing of the moving beam (309), the connecting disc (312) is connected with the rotating shaft (311) in a welding mode, and the electric push rod (313) is connected with the connecting disc (312) and the rubber disc (314) through bolts respectively.

7. An automatic bending machine according to claim 2, characterized in that: the supporting plate (41) is connected with the workbench (2) in a welding mode, and the first air cylinder (42) is connected with the supporting plate (41) and the rubber seat (43) through bolts respectively.

8. An automatic bending machine according to claim 3, characterized in that: the first hydraulic cylinder (51) is respectively in bolted connection with the connecting plate (52) and the workbench (2), the lifting die (53) is in bolted connection with the connecting plate (52), the supporting seat (54) is in welded connection with the workbench (2), and the second cylinder (55) is respectively in bolted connection with the supporting seat (54) and the push plate (56).

9. An automatic bending machine according to claim 4, characterized in that: support column (61) respectively with workstation (2) with portal frame (305) welded connection, second guide rail (62) with second servo motor (64) respectively with support column (61) bolted connection, second ball screw (63) with support column (61) bearing connection, second servo motor (64) with second ball screw (63) coupling joint, remove frame (65) with second guide rail (62) sliding connection, remove frame (65) with second ball screw (63) threaded connection, go up fixed mould (66) with remove frame (65) bolted connection.

10. An automatic bending machine according to claim 5, characterized in that: support column (61) respectively with workstation (2) with portal frame (305) welded connection, tie-beam (601) with optical axis (602) all with support column (61) welded connection, remove frame (65) with optical axis (602) sliding connection, go up fixed mould (66) with remove frame (65) bolted connection, second pneumatic cylinder (603) respectively with remove frame (65) with tie-beam (601) bolted connection.

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