CN216096310U

CN216096310U - Die casting machine for hardware processing

Info

Publication number: CN216096310U
Application number: CN202122096026.9U
Authority: CN
Inventors: 陈垚
Original assignee: Ruian Luoqi Construction Hardware Co ltd
Current assignee: Ruian Luoqi Construction Hardware Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-03-22
Anticipated expiration: 2031-09-01

Abstract

The application discloses a die casting machine for hardware processing, which comprises a workbench, a smelting furnace, a movable template and a fixed template, and is characterized in that an operation box is fixedly arranged on the end surface of one side of the workbench, which is far away from the ground, and a processing cavity is arranged in the operation box. The production quality of the product is improved.

Description

Die casting machine for hardware processing

Technical Field

The utility model relates to the technical field of die casting, in particular to a die casting machine for hardware processing.

Background

The die casting die is a method for casting liquid forging, the molten metal enters into the cavity of the die, the die has a movable cavity surface, and the die is pressed and forged along with the cooling process of the molten metal, and the forging mode can obviously improve the comprehensive mechanical property of the blank.

The position deviation of mould when the compound die during operation is very important to the precision of mould production, and current die casting machine produces the deviation very easily between compound die in-process movable mould and cover half, and relative movement also easily appears in movable mould and cover half when the die casting operation simultaneously, influences the accuracy of mould production, causes the product quality to reduce.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art.

The application provides a die casting machine for hardware processing that mould joint is stable and production quality is high, including workstation, smelting pot, movable mould board, fixed die plate, its characterized in that, the workstation is kept away from on the terminal surface of ground one side the fixed control box that is equipped with, be equipped with the process chamber in the control box, the process chamber is kept away from and is equipped with telescopic machanism on the terminal surface of workstation one side, the fixed setting of movable mould board is on the telescopic machanism output, the workstation is kept away from on the terminal surface of ground one side the fixed fixing base that is equipped with, fixed die plate and fixing base are kept away from workstation one side terminal surface bolt fixed connection, the fixing base both sides are equipped with coupling mechanism.

The four supporting legs are fixedly arranged on the end face, close to the ground, of one side of the workbench and are fixedly arranged on the end face, close to the ground, of one side of the workbench, the smelting furnace is fixedly arranged on the end face, close to the ground, of one side of the workbench, and the discharging end of the smelting furnace is fixedly provided with a feeding channel communicated with the feeding end of the fixed die plate.

Coupling mechanism includes about fixing base symmetry and fixed two bearing plate that set up on the workstation keeps away from ground side end face, bearing plate corresponds fixedly between the side end face with the fixing base and is equipped with the guide arm, it is equipped with the driven plate to slide on the guide arm, the fixed buffer spring that is equipped with between driven plate and the fixing base, driven plate is kept away from workstation one side and is equipped with and contradicts in order to drive the driven plate to being close to, keeping away from conflict mechanism that fixing base one side removed, the driven plate is close to fixing base side end face on the fixed sleeve that is equipped with, fixed sleeve is close to in the fixing base side end face elastic expansion and contraction and is equipped with the elastic rod, the elastic rod is close to fixing base side end face on the fixed joint plate that is equipped with.

The fixed die plate is characterized in that two limiting grooves with openings far away from one side of the feeding channel are formed in the end faces of two opposite sides of the fixed die plate at corresponding positions of the two joint plates, a limiting plate is fixedly arranged on the end face of one side, close to the fixing seat, of each joint plate, and the limiting plate can extend into the limiting grooves at the corresponding positions.

The utility model discloses a fixed set of fixed base one side inner wall and binding plate correspond the side end face, the relative both sides terminal surface of movable mould board is equipped with two openings and to keeping away from the constant head tank of feedstock channel one side about two binding plates corresponding position, the constant head tank is close to and is equipped with the opening and to keeping away from the draw-in groove of workstation one side on the workstation one side inner wall, be equipped with the restriction chamber in the binding plate, it is equipped with the slide to restrict the intracavity and slide along vertical direction slip, the slide is close to workstation one side terminal surface and restricts the chamber and is close to the fixed reset spring that is equipped with between workstation one side inner wall, the slide is close to workstation one side terminal surface and restricts the chamber and is close to on workstation one side inner wall respectively fixed be equipped with two electro-magnets that can actuation each other, it is equipped with the stroke groove to link up between fixing base one side inner wall and the binding plate corresponding side terminal surface, the fixed set of being equipped with on the corresponding position slide side terminal surface can stretch into corresponding position constant head tank on the fixed pin is kept away from corresponding position The fixed block, the fixed block is close to and is equipped with the cardboard that can block into in the corresponding position draw-in groove on the workstation side terminal surface fixedly.

The fixed die plate is provided with an opening towards the sealing groove far away from one side of the workbench on the end surface close to one side of the movable die plate, the movable die plate is fixedly provided with a sealing plate on the end surface close to one side of the fixed seat relative to the corresponding position of the sealing groove, and the sealing plate can extend into the sealing groove.

By adopting the die casting machine for hardware processing, when the movable die plate is abutted against the fixed die plate, the driven plate moves towards one side close to the fixed seat through the abutting mechanism, the limiting plate and the fixing block respectively extend into the limiting groove and the positioning groove at the corresponding positions under the action of the compression elasticity between the elastic rod and the fixing sleeve, at the moment, the two electromagnets at the corresponding positions are started to be sucked, the reset spring is compressed, the clamping plate is clamped into the clamping groove at the corresponding position, under the interference limiting action of the clamping plate and the limiting plate, the relative position between the movable template and the fixed template is fixed, thereby ensuring the stability of the movable template and the fixed template in the charging process of the furnace to the movable template and the fixed template, meanwhile, the sealing plate extends into the sealing groove, so that the joint sealing performance between the movable template and the fixed template is further improved, and the production quality of products is improved.

The collision mechanism comprises two threaded rods which are symmetrical relative to a fixed seat and are rotatably arranged between the inner wall of one side of the processing cavity, which is far away from the workbench, and the corresponding side end face of the operation box, the two threaded rods are connected through a belt, a lifting motor is fixedly arranged on the end face of one side of the workbench, which is far away from the ground, one side of the threaded rod is close to one side of the workbench and is in power connection with one side end of the lifting motor, one side of the threaded rod, which is far away from the lifting motor, is in rotary connection with the end face of one side of the workbench, which is far away from the ground, a lifting platform is arranged on the two threaded rods in a threaded connection manner, a transition port is arranged between the end faces of the lifting platform, which is close to and far away from the workbench, two collision plates are symmetrically and fixedly arranged relative to the transition port on the end face of one side, which is close to the workbench, and are inclined planes which are inclined towards one side, and far away from one side of the fixed seat, on the side of the driven plate, the abutting plate is close to one side inclined plane of the workbench and can be abutted against one side inclined plane of the workbench far away from the driven plate at the corresponding position.

The telescopic machanism sets up the pneumatic cylinder in workstation one side inner wall is kept away from at the processing chamber including the embedding, the pneumatic cylinder is close to workstation one side end power and is equipped with the hydraulic stem, the hydraulic stem is kept away from on the pneumatic cylinder terminal surface and is fixed and be equipped with the fixed plate, the movable mould board bolt is fixed to be set up on the fixed plate is close to workstation one side terminal surface.

The advantageous effects of the present invention will be explained in detail in the embodiments, thereby making the advantageous effects more apparent.

Drawings

FIG. 1 is a schematic structural diagram of a die casting machine for hardware processing according to an embodiment of the present application;

FIG. 2 is an enlarged schematic view of the "confinement chamber 46" portion;

FIG. 3 is a schematic structural view of two electromagnets 44 in a corresponding position when the electromagnets are engaged;

fig. 4 is a schematic perspective view of the "fixed die plate 32".

Reference numerals

11-workbench, 12-lifting motor, 13-bearing plate, 14-driven plate, 15-operation box, 16-lifting platform, 17-touch plate, 18-transition port, 19-processing cavity, 20-hydraulic cylinder, 21-hydraulic rod, 22-fixed plate, 23-movable template, 24-sealing groove, 25-elastic rod, 26-fixed block, 27-threaded rod, 28-fixed sleeve, 29-joint plate, 30-limit plate, 31-limit groove, 32-fixed template, 33-feeding channel, 34-fixed seat, 35-melting furnace, 36-buffer spring, 37-guide rod, 38-supporting leg, 39-positioning groove, 40-clamping groove, 41-sealing plate, 42-clamping plate, 43-stroke groove, 44-electromagnet, 45-return spring, 46-limiting cavity, 47-sliding plate and 48-fixed pin.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Example 1:

as shown in fig. 1-4, this application embodiment provides a die casting machine for hardware processing, including workstation 11, smelting pot 35, movable mould board 23, fixed die plate 32, its characterized in that, workstation 11 keeps away from on the terminal surface of ground one side fixed be equipped with control box 15, be equipped with process chamber 19 in the control box 15, process chamber 19 keeps away from and is equipped with telescopic machanism on the terminal surface of workstation 11 one side, movable mould board 23 is fixed to be set up on the telescopic machanism output, workstation 11 keeps away from on the terminal surface of ground one side fixed be equipped with fixing base 34, fixed die plate 32 keeps away from workstation 11 one side terminal surface bolt fixed connection with fixing base 34, fixing base 34 both sides are equipped with coupling mechanism.

Four supporting legs 38 are fixedly arranged on the end face of one side, close to the ground, of the workbench 11, the smelting furnace 35 is fixedly arranged on the end face of one side, close to the ground, of the workbench 11, and the charging channel 33 communicated with the charging end of the fixed die plate 32 is fixedly arranged at the discharging end of the smelting furnace 35.

Coupling mechanism includes about fixing base 34 symmetry and fixed two bearing plate 13 that set up on workstation 11 keeps away from ground side end face, bearing plate 13 corresponds between the side end face with fixing base 34 and fixes and is equipped with guide arm 37, it is equipped with driven plate 14 to slide on the guide arm 37, it is equipped with buffer spring 36 to fix between driven plate 14 and the fixing base 34, driven plate 14 is kept away from workstation 11 one side and is equipped with and conflicts driven plate 14 in order to drive driven plate 14 to being close to, keeping away from the conflict mechanism of fixing base 34 one side removal, driven plate 14 is close to fixing base 34 one side end face and goes up the fixed sleeve 28 that is equipped with, fixed sleeve 28 is close to fixing base 34 one side end face in the elastic expansion and is equipped with elastic rod 25, elastic rod 25 is close to fixing base 34 one side end face on the fixed joint plate 29 that is equipped with.

The end surfaces of two opposite sides of the fixed die plate 32 are provided with two limiting grooves 31 which are opened to one side far away from the feeding channel 33 and correspond to the two joint plates 29, the end surface of one side, close to the fixed seat 34, of the joint plate 29 is fixedly provided with a limiting plate 30, and the limiting plate 30 can extend into the limiting grooves 31 corresponding to the positions.

Two positioning grooves 39 with openings towards one side far away from the feeding channel 33 are arranged on the end faces of two opposite sides of the movable die plate 23 relative to the corresponding positions of the two joint plates 29, a clamping groove 40 with an opening towards one side far away from the workbench 11 is arranged on the inner wall of one side, close to the workbench 11, of the positioning groove 39, a limiting cavity 46 is arranged in the joint plate 29, a sliding plate 47 is arranged in the limiting cavity 46 in a sliding mode along the vertical direction, a reset spring 45 is fixedly arranged between the end face of one side, close to the workbench 11, of the sliding plate 47 and the inner wall of one side, close to the workbench 11, of the limiting cavity 46, two electromagnets 44 capable of mutually attracting are fixedly arranged on the inner wall of one side, close to the fixed seat 34, of the limiting cavity 46 and the end face of the corresponding side of the joint plate 29, a stroke groove 43 is arranged in a penetrating mode, a fixing pin 48 sliding in the stroke groove 43 at the corresponding position is fixedly arranged on the end face of one side, close to the fixed seat 34, of the sliding plate 47, the fixed pin 48 is kept away from and is fixed being equipped with the fixed block 26 that can stretch into in the corresponding position constant head tank 39 on the corresponding position slide 47 side end face, the fixed block 26 is close to and is fixed being equipped with on the workstation 11 side end face and can block the cardboard 42 that can go into in the corresponding position draw-in groove 40.

The end face of one side of the fixed die plate 32 close to the movable die plate 23 is provided with a sealing groove 24 with an opening towards the side far away from the workbench 11, the end face of one side of the movable die plate 23 close to the fixed seat 34 is fixedly provided with a sealing plate 41 relative to the corresponding position of the sealing groove 24, and the sealing plate 41 can extend into the sealing groove 24.

In the embodiment of the application, adopt foretell die casting machine for hardware processing, work as movable mould board 23 is when contradicting with fixed die plate 32 under telescopic machanism's drive, driven plate 14 is to being close to fixing base 34 one side removal through contradicting the mechanism, limiting plate 30, fixed block 26 stretch into respectively under the compression elasticity effect between elastic rod 25 and fixed sleeve 28 in limiting groove 31, the constant head tank 39 of corresponding position, start two electro-magnets 44 actuation in corresponding position this moment, reset spring 45 compresses, cardboard 42 card is gone into in corresponding position draw-in groove 40 cardboard 42 and limiting plate 30's conflict limiting displacement down, relative position between movable mould board 23 and the fixed die plate 32 is fixed, thereby carry out the stability of having guaranteed movable mould board 23 and fixed die plate 32 in-process in the reinforced movable mould board 23 of smelting pot 35, the fixed die plate 32, simultaneously closing plate 41 has further promoted the joint between movable mould board 23 and the fixed die plate 32 in stretching into seal groove 24 The sealing performance improves the production quality of the product.

Example 2:

in this embodiment, in addition to the structural features of the previous embodiment, the abutting mechanism includes two threaded rods 27 symmetrically and rotatably disposed on the inner wall of the side of the processing chamber 19 away from the working table 11 and the corresponding side end surface of the operation box 15 about the fixing seat 34, the two threaded rods 27 are connected by a belt, the lifting motor 12 is fixedly disposed on the end surface of the side of the working table 11 away from the ground, one side end of the threaded rod 27 close to the working table 11 is in power connection with one side end of the lifting motor 12 away from the working table 11, one side end of the threaded rod 27 away from the lifting motor 12 is in rotational connection with the end surface of the side of the working table 11 away from the ground, the lifting table 16 is disposed on the two threaded rods 27 in threaded connection, the transition port 18 is disposed between the end surfaces of the lifting table 16 close to and away from the working table 11, the two abutting plates 17 are symmetrically and fixedly disposed on the end surface of the side close to the working table 11 about the transition port 18, the utility model discloses a supporting touch panel 17, including workstation 11, driven plate 14, supporting touch panel 17, workstation 11, driven plate 14, fixing base 34, driven plate 14, workstation 11, supporting touch panel 17 is close to workstation 11 one side terminal surface and is for the slope to the inclined plane of keeping away from fixing base 34 one side, supporting touch panel 17 is close to workstation 11 one side inclined plane and can keeps away from workstation 11 one side inclined plane with corresponding position driven plate 14 and contradict.

In this embodiment, owing to adopted foretell structure, when elevator motor 12 starts two threaded rods 27 of corotation drive and rotates, elevating platform 16 drives two and supports touch panel 17 and to moving near workstation 11 one side, support touch panel 17 inclined plane conflict corresponding position driven plate 14 inclined plane, driven plate 14 will be to being close to fixing base 34 one side under the conflict effect of touch panel 17 and remove the completion to the joint of movable mould board 23 and fixed die plate 32, work as elevator motor 12 starts the reposition of accomplishing elevating platform 16, touch panel 17 along above-mentioned route when the reversal, driven plate 14 will realize restoring to the throne under buffer spring 36's spring action, and easy operation has guaranteed movable mould board 23, fixed die plate 32's quick joint.

Example 3:

in this embodiment, in addition to the structural features of the previous embodiment, the telescopic mechanism includes a hydraulic cylinder 20 embedded in the inner wall of the processing cavity 19 on the side away from the working table 11, a hydraulic rod 21 is powered on the end of the hydraulic cylinder 20 on the side close to the working table 11, a fixed plate 22 is fixedly arranged on the end surface of the hydraulic rod 21 on the side away from the hydraulic cylinder 20, and the movable mold plate 23 is fixedly arranged on the end surface of the fixed plate 22 on the side close to the working table 11 by bolts.

In this embodiment, due to the adoption of the above structure, when the hydraulic cylinder 20 is started, the hydraulic rod 21 is driven to extend out, and the hydraulic rod 21 drives the fixed plate 22 and the movable die plate 23 to move towards one side close to the workbench 11, so that the movable die plate 23 and the fixed die plate 32 are abutted and closed, and the transition port 18 prevents the lifting of the lifting platform 16 from interfering with the fixed plate 22 and the movable die plate 23.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the utility model is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a die casting machine for hardware processing, includes workstation (11), smelting pot (35), movable mould board (23), fixed die plate (32), its characterized in that, workstation (11) are kept away from on the terminal surface of ground one side fixed and are equipped with control box (15), be equipped with process chamber (19) in control box (15), process chamber (19) are kept away from and are equipped with telescopic machanism on workstation (11) one side terminal surface, movable mould board (23) are fixed to be set up on the telescopic machanism output, fixed being equipped with fixing base (34) on the terminal surface of ground one side is kept away from in workstation (11), fixed die plate (32) and fixing base (34) keep away from workstation (11) one side terminal surface bolt fixed connection, fixing base (34) both sides are equipped with coupling mechanism.

2. The die casting machine for hardware processing as claimed in claim 1, wherein four legs (38) are fixedly arranged on the end surface of the workbench (11) close to the ground and at four corner positions, the melting furnace (35) is fixedly arranged on the end surface of the workbench (11) close to the ground, and the discharging end of the melting furnace (35) is fixedly provided with a charging channel (33) communicated with the feeding end of the fixed die plate (32).

3. The die casting machine for hardware processing as claimed in claim 1, wherein the engaging mechanism includes two bearing plates (13) symmetrically and fixedly disposed on the end surface of one side of the workbench (11) far away from the ground, a guide rod (37) is fixedly disposed between the corresponding side end surfaces of the bearing plates (13) and the fixed seat (34), a driven plate (14) is slidably disposed on the guide rod (37), a buffer spring (36) is fixedly disposed between the driven plate (14) and the fixed seat (34), a collision mechanism for colliding the driven plate (14) to drive the driven plate (14) to move towards and away from one side of the fixed seat (34) is disposed on one side of the driven plate (14) far away from the workbench (11), a fixing sleeve (28) is fixedly disposed on one side end surface of the driven plate (14) close to the fixed seat (34), and an elastic rod (25) is elastically and telescopically disposed in one side end surface of the fixing sleeve (28) close to the fixed seat (34), and a joint plate (29) is fixedly arranged on the end surface of one side of the elastic rod (25) close to the fixed seat (34).

4. The die casting machine for hardware processing as claimed in claim 1, wherein the two limiting grooves (31) with openings towards one side far away from the feeding channel (33) are arranged on the end faces of two opposite sides of the fixed die plate (32) relative to the corresponding positions of the two joint plates (29), the joint plates (29) are close to the end faces of one side of the fixed seat (34) and are fixedly provided with limiting plates (30), and the limiting plates (30) can extend into the limiting grooves (31) corresponding to the positions.

5. The die casting machine for hardware processing according to claim 1, wherein two positioning grooves (39) with openings towards one side far away from the feeding channel (33) are arranged on the end faces of two opposite sides of the movable die plate (23) relative to the corresponding positions of the two joint plates (29), the positioning grooves (39) are close to a clamping groove (40) with openings towards one side far away from the working table (11) and arranged on the inner wall of one side of the working table (11), a limiting cavity (46) is arranged in the joint plates (29), a sliding plate (47) is arranged in the limiting cavity (46) in a sliding manner along the vertical direction, a reset spring (45) is fixedly arranged between the end face of one side close to the working table (11) and the inner wall of one side close to the working table (11) of the limiting cavity (46) on the end face of one side close to the working table (11) and the inner wall of one side close to the working table (11) of the limiting cavity (46) respectively and is fixedly provided with two electromagnets (44) capable of attracting each other, restriction chamber (46) are close to and link up between fixing base (34) one side inner wall and splice plate (29) the side end face that corresponds and are equipped with stroke groove (43), slide (47) are close to on fixing base (34) a side end face and are fixed to be equipped with at gliding fixed pin (48) in corresponding position stroke groove (43), fixed pin (48) are kept away from on corresponding position slide (47) a side end face and are fixed to be equipped with and can stretch into fixed block (26) in corresponding position constant head tank (39), fixed block (26) are close to on workstation (11) a side end face and are fixed to be equipped with and can block into cardboard (42) in corresponding position draw-in groove (40).

6. The die casting machine for hardware processing as claimed in claim 1, wherein the end surface of the fixed die plate (32) close to the movable die plate (23) is provided with a sealing groove (24) which is opened to a side far away from the workbench (11), the end surface of the movable die plate (23) close to the fixed seat (34) is fixedly provided with a sealing plate (41) corresponding to the sealing groove (24), and the sealing plate (41) can extend into the sealing groove (24).

7. The die casting machine for hardware processing according to claim 3, wherein the interference mechanism comprises two threaded rods (27) which are symmetrically and rotatably arranged on the processing cavity (19) and are far away from the end face of the corresponding side of the inner wall on one side of the workbench (11) and the operation box (15) and connected through a belt, the lifting motor (12) is fixedly arranged on the end face of one side of the workbench (11), one side of the threaded rod (27) is close to one side end of the workbench (11) and is in power connection with one side end of the lifting motor (12), one side of the threaded rod (27) far away from the lifting motor (12) is in rotation connection with the end face of one side of the workbench (11) far away from the ground, the lifting table (16) is arranged on the two threaded rods (27) in a threaded connection manner, and the lifting table (16) is close to the end face of the processing cavity (19), Keep away from to link up between workstation (11) a side end face and be equipped with ferry-mouth (18), elevating platform (16) are close to workstation (11) a side end face and go up in the symmetry of ferry-mouth (18) and fixed two touch panel (17) that are equipped with, touch panel (17) are close to workstation (11) a side end face and are for the slope to being close to the inclined plane of fixing base (34) one side, workstation (11) a side end face is kept away from in driven plate (14) and are for the slope to the inclined plane of keeping away from fixing base (34) one side, touch panel (17) are close to workstation (11) one side inclined plane and can keep away from workstation (11) one side inclined plane with corresponding position driven plate (14) and contradict.

8. The die casting machine for hardware processing according to claim 1, characterized in that, telescopic machanism includes that the embedding sets up pneumatic cylinder (20) in workstation (11) one side inner wall is kept away from in process chamber (19), pneumatic cylinder (20) are close to workstation (11) one side end power and are equipped with hydraulic stem (21), hydraulic stem (21) are kept away from on pneumatic cylinder (20) one side terminal surface and are fixed and be equipped with fixed plate (22), movable mould board (23) bolt fastening sets up on fixed plate (22) is close to workstation (11) one side terminal surface.