CN108414797B

CN108414797B - Switch board copper bar generating line quality testing auxiliary device

Info

Publication number: CN108414797B
Application number: CN201810178586.9A
Authority: CN
Inventors: 王飞
Original assignee: Jiangsu Kaixin Electric Equipment Co ltd
Current assignee: JIANGSU KAIXIN ELECTRIC EQUIPMENT Co.,Ltd.
Priority date: 2016-11-02
Filing date: 2016-11-02
Publication date: 2020-05-12
Anticipated expiration: 2036-11-02
Also published as: CN106505414B; CN108414797A; CN106505414A

Abstract

The invention relates to a power distribution cabinet copper bar bus quality detection auxiliary device, which comprises a substrate, wherein two first linear slide rails are arranged on the upper end surface of the substrate, a moving column is arranged on each first linear slide rail, a moving die is arranged at the upper ends of the two moving columns of the two first linear slide rails, a first lead screw is arranged in the middle of the moving die through threads, a hand wheel is arranged at the left end of the first lead screw, a fixed die is arranged at the right end of the first lead screw through a bearing, two fixed posts are symmetrically welded on the rear end surface of the fixed die, and the lower ends of the two fixed posts are arranged on the substrate; two mounting panels are installed to the up end of base plate, and two guiding axles are installed to the symmetry between two mounting panels, are located and install No. two screws through the bearing on the left mounting panel inner wall of base plate, and the right-hand member of No. two screws installs the moving motor through the shaft coupling. The automatic clamping and conveying device can realize the automatic clamping and conveying function of the bus of the power distribution cabinet, and has the advantages of high clamping and conveying speed, high automation degree, high working efficiency and the like.

Description

Switch board copper bar generating line quality testing auxiliary device

The invention relates to a divisional application of Chinese patent application with the application number of 2016109496232, which is filed on 2016, 11 and 02 and is named as an automatic clamping and conveying device for a power distribution cabinet bus.

Technical Field

The invention relates to the technical field of switch cabinets, in particular to a power distribution cabinet copper bar bus quality detection auxiliary device.

Background

The power distribution cabinet is an electrical device, is a master control center of various electrical appliances, provides protection, monitoring and control for various electrical appliances, is also an indispensable power distribution auxiliary device for automatic production, and mainly structurally comprises a cabinet body, an instrument, a bus, a grounding bus, electrical device elements and other components, wherein the generating line is that each electric original paper collects, the conductor of distribution and transmission electric energy, consequently the working property of the good or bad direct influence switch board of quality of generating line, use among the current generating line kind most extensively be exactly the copper bar generating line, the main conducting ring that is omega type structure by both ends of copper bar generating line, the centre is constituteed for flat copper bar wire, the generating line need carry out the quality detection before using usually, the quality detects mainly to divide into conductivity detection and surface damage situation detection, the main artifical detection of auxiliary fixtures that detects of present generating line quality, there is following defect in this kind of the artifical detection mode of generating line: the bus is required to be manually taken from the collecting box through the wire clamp and placed on the auxiliary tool to wait for detection, and the manual clamping and placing mode has the defects of complex operation, high labor intensity, low clamping and placing speed, low automation degree, low working efficiency and the like.

Disclosure of Invention

In order to solve the problems, the invention provides an auxiliary device for detecting the quality of a copper bar bus of a power distribution cabinet, which can solve the problems of complex operation, high labor intensity, low clamping and placing speed, low automation degree, low working efficiency and the like in the conventional manual detection mode of the bus of the power distribution cabinet, can realize the automatic clamping and conveying function of the bus of the power distribution cabinet, is simple and convenient to operate, does not need manual operation, and has the advantages of high clamping and conveying speed, high automation degree, high working efficiency and the like.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a power distribution cabinet copper bar bus quality detection auxiliary device comprises a base plate, wherein two first linear slide rails are mounted on the upper end face of the base plate, a moving column is mounted on each first linear slide rail, a moving die is mounted at the upper ends of the two moving columns of the two first linear slide rails, a first lead screw is mounted in the middle of the moving die through threads, a hand wheel is arranged at the left end of the first lead screw, a fixed die is mounted at the right end of the first lead screw through a bearing, two fixed columns are symmetrically welded on the rear end face of the fixed die, the lower ends of the two fixed columns are mounted on the base plate, the two fixed columns play a role in fixedly supporting the fixed die, an operator drives the first lead screw to rotate on the fixed die through the hand wheel, the first lead screw drives the fixed die to move, the fixed die stably moves on the two first linear slide rails through the two moving columns, so that the distance between, meanwhile, the hand wheel in the invention can be replaced by the existing servo motor to directly drive to realize the automatic adjustment of the distance between the fixed die and the movable die; the inner wall of the movable mold is provided with a first mold cavity, the inner wall of the fixed mold is provided with a second mold cavity corresponding to the first mold cavity, the first mold cavity and the second mold cavity are used as blanking passages of a bus, the outer wall of the movable mold is provided with a first lifting guide mechanism, the outer wall of the fixed mold is provided with a second lifting guide mechanism corresponding to the first lifting guide mechanism, the bus blanked from the first mold cavity and the second mold cavity is automatically received through the first lifting guide mechanism and the second lifting guide mechanism, and then the bus is lifted and transmitted to a specified height through the first lifting guide mechanism and the second lifting guide mechanism; the upper end surface of the base plate is provided with two mounting plates, two guide shafts are symmetrically mounted between the two mounting plates, a second lead screw is mounted on the inner wall of the mounting plate on the left side of the base plate through a bearing, a moving motor is mounted at the right end of the second lead screw through a coupler, the moving motor is mounted on the inner wall of the mounting plate on the right side of the base plate through a motor base, and the second lead screw is located between the two guide shafts; the moving block is arranged on the second lead screw through threads, the upper end and the lower end of the moving block are respectively arranged on the two guide shafts in a sliding fit mode, the two guide shafts play a limiting auxiliary motion, so that the moving block can stably and horizontally move without rotating, the second lead screw is driven to rotate through the moving motor, and the second lead screw drives the moving block to stably move left and right under the limiting assistance of the two guide shafts; the invention automatically clamps a bus bar which is lifted and transmitted by a first lifting guide mechanism and a second lifting guide mechanism through the clamping mechanism, the clamping mechanism comprises two second hydraulic cylinders which are arranged on the inner wall of the moving block, the middle parts of the two second hydraulic cylinders are fixedly arranged on a fixing frame, the fixing frame is welded on the inner wall of the moving block, the fixing frame plays a role of fixedly supporting the two second hydraulic cylinders, the top ends of the two second hydraulic cylinders are provided with a clamping base plate through flanges, the clamping base plate is stably driven to do telescopic motion through the two second hydraulic cylinders, fixed clamping plates are welded on the inner wall of the clamping base plate, two clamping support plates are symmetrically arranged on the inner wall of the clamping base plate, each clamping support plate is provided with two third hydraulic cylinders, the top ends of the four third hydraulic cylinders of the two clamping support plates are provided with a movable clamping plate through flanges, move splint up-and-down motion through four No. three pneumatic cylinders stable drives to adjusted and moved the splint and decide the distance between the splint, come the generating line that the centre gripping transmission got off through the clamping-force that forms between moving splint and the solid fixed plate, the lower extreme both sides of moving splint link to each other with two centre gripping extension boards respectively through two buffer spring, and buffer spring plays good cushioning effect, prevents to move the phenomenon that splint speed harmd the generating line copper bar too fast.

As a preferred technical scheme of the invention, the first die cavity penetrates from the upper end surface of the driven die to the lower end surface, the second die cavity penetrates from the upper end surface of the fixed die to the lower end surface, the first die cavity and the second die cavity are in omega-shaped structures with equal shapes and sizes, so that the structures of the first die cavity and the second die cavity are the same as those of two ends of a bus, thereby being capable of carrying out spacing accurate blanking, the upper ends of the first die cavity and the second die cavity are obliquely and outwards extended and provided with guide die frames, the guide die frames are in omega-shaped structures corresponding to the first die cavity and the second die cavity, the guide die frames play a role of guiding bus blanking, and when the bus is adjusted to the inner wall of the guide die frames, the bus can automatically slide into the first die cavity and the second die cavity by virtue of the oblique extension structures of the guide die frames, thereby.

As a preferred technical scheme of the invention, the first lifting guide mechanism and the second lifting guide mechanism are the same in shape, structure and size, the first lifting guide mechanism and the second lifting guide mechanism are the same and are convenient to move synchronously, the first lifting guide mechanism comprises a guide base block welded on the outer wall of a movable die, a first hydraulic cylinder is installed on the guide base block, the middle part of the first hydraulic cylinder is fixed on a guide fixed plate, the guide fixed plate is welded on the outer wall of the movable die and plays a role in fixedly supporting the middle part of the first hydraulic cylinder, a lifting plate is installed at the top end of the first hydraulic cylinder through a flange, the right end of the lifting plate is just positioned under a first die cavity, and the lifting plate is driven by the first hydraulic cylinder to carry out bus up-and-down lifting transmission work.

According to the preferable technical scheme, the rubber pads are arranged on the inner walls of the fixed clamping plate and the movable clamping plate, and play a role in protecting the surface of the bus copper bar, so that the phenomenon that the surface of the bus copper bar is damaged due to overlarge clamping force between the fixed clamping plate and the movable clamping plate is avoided.

When the device works, firstly, the width between the fixed die and the movable die is determined according to the length of the bus, an operator drives a first lead screw to rotate on the fixed die through a hand wheel, the first lead screw drives the movable die to move, the movable die stably moves on two first linear slide rails through two movable columns, so that the distance between the fixed die and the movable die is adjusted, the width between a first die cavity and a second die cavity is adjusted, after the distance is adjusted, two ends of the bus are placed into the first die cavity and the second die cavity, two ends of the bus pass through the first die cavity and the second die cavity and respectively fall onto a first lifting guide mechanism and a second lifting guide mechanism, then the first lifting guide mechanism and the second lifting guide mechanism synchronously start to work to lift and transmit the bus to a specified height, then the clamping mechanism starts to work, two second hydraulic cylinders drive the clamping base plate to do telescopic motion, the clamping base plate drives the movable clamping plate and the fixed clamping plate to move to the upper end and, four No. three pneumatic cylinders begin work this moment, four No. three pneumatic cylinders drive the movable clamp plate and slowly move down under two buffer spring's the cushion force effect, the generating line middle part that the transmission got off is held to the clamping-force centre gripping that forms between movable clamp plate and the fixed clamp plate, two pneumatic cylinders two numbers this moment move once more and stretch out and draw back to the primary importance, then the mobile motor begins work, the mobile motor drives No. two lead screw rotations, make No. two lead screw drive movable block stabilize and remove about under the spacing assistance of two guiding axles, the movable block drives fixture and transmits the generating line to the assigned position, so that carry out the detection achievement on next step, the automatic centre gripping of switch board generating line is carried the function has been realized, and is easy and simple to handle, need not artificial motion, degree of automation is.

The invention has the beneficial effects that: compared with the prior art, the distance between the fixed die and the movable die is adjusted to be a proper distance through the first lead screw, the two ends of the bus can automatically slide into the first die cavity and the second die cavity for blanking by virtue of the inclined extension structure of the guide die frame, the bus blanked from the first die cavity and the second die cavity is automatically caught through the first lifting guide mechanism and the second lifting guide mechanism and is downwards transmitted to a proper position, the clamping mechanism automatically clamps the bus, and finally the second lead screw drives the moving block to move under the action of the moving motor, and the moving block drives the clamping mechanism to move the bus to a proper position, so that the automatic clamping and conveying function of the bus distribution cabinet is realized The clamping and placing speed is slow, the automation degree is low, the working efficiency is low and the like.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a first configuration of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

fig. 3 is a schematic structural view of the clamping mechanism of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

As shown in fig. 1 to 3, an auxiliary device for detecting the quality of a copper bar bus of a power distribution cabinet comprises a substrate 31, two first linear slide rails 32 are installed on the upper end surface of the substrate 31, a moving column 33 is installed on each first linear slide rail 32, a moving mold 34 is installed on the upper ends of the two moving columns 33 of the two first linear slide rails 32, a first lead screw 35 is installed in the middle of the moving mold 34 through threads, a hand wheel 36 is arranged at the left end of the first lead screw 35, a fixed mold 37 is installed at the right end of the first lead screw 35 through a bearing, two fixed columns 38 are symmetrically welded on the rear end surface of the fixed mold 37, the lower ends of the two fixed columns 38 are installed on the substrate 31, the two fixed columns 38 serve to fixedly support the fixed mold 37, an operator drives the first lead screw 35 to rotate on the fixed mold 37 through the hand wheel 36, the first lead screw 35 drives the fixed mold 37 to move, the fixed mold 37 smoothly moves, therefore, the distance between the fixed die 37 and the movable die 34 is adjusted, the bus blanking device is suitable for bus blanking with different lengths, and meanwhile, the hand wheel 36 in the bus blanking device can be replaced by the conventional servo motor to directly drive to realize automatic adjustment of the distance between the fixed die 37 and the movable die 34; a first die cavity is arranged on the inner wall of the movable die 34, a second die cavity corresponding to the first die cavity is arranged on the inner wall of the fixed die 37, the first die cavity and the second die cavity are used as blanking passages of a bus, a first lifting guide mechanism 39 is arranged on the outer wall of the movable die 34, a second lifting guide mechanism 310 corresponding to the first lifting guide mechanism 39 is arranged on the outer wall of the fixed die 37, the bus blanked from the first die cavity and the second die cavity is automatically received through the first lifting guide mechanism 39 and the second lifting guide mechanism 310, and then the bus is lifted and transmitted to a specified height through the first lifting guide mechanism 39 and the second lifting guide mechanism 310; the upper end surface of the base plate 31 is provided with two mounting plates 311, two guide shafts 312 are symmetrically mounted between the two mounting plates 311, the inner wall of the mounting plate 311 positioned on the left side of the base plate 31 is provided with a second lead screw 313 through a bearing, the right end of the second lead screw 313 is provided with a moving motor 314 through a coupler, the moving motor 314 is mounted on the inner wall of the mounting plate 311 positioned on the right side of the base plate 31 through a motor base, and the second lead screw 313 is positioned between the two guide shafts 312; the moving block 315 is installed on the second lead screw 313 through threads, the upper end and the lower end of the moving block 315 are respectively installed on the two guide shafts 312 in a sliding fit mode, the two guide shafts 312 perform limiting auxiliary motion, so that the moving block 315 can stably and horizontally move without rotating, the second lead screw 313 is driven to rotate by the moving motor 314, and the second lead screw 313 drives the moving block 315 to stably move left and right under the limiting assistance of the two guide shafts 312; the inner wall of the moving block 315 is provided with a clamping mechanism 316, the clamping mechanism 316 can move left and right on the moving block 315, the first lifting guide mechanism 39 and the second lifting guide mechanism 310 can automatically clamp a bus bar which is lifted and conveyed by the clamping mechanism 316, the clamping mechanism 316 comprises two second hydraulic cylinders 3161 which are arranged on the inner wall of the moving block 315, the middle parts of the two second hydraulic cylinders 3161 are fixedly arranged on a fixed frame 3162, the fixed frame 3162 is welded on the inner wall of the moving block 315, the fixed frame 3162 plays a role of fixedly supporting the two second hydraulic cylinders 3161, the top ends of the two second hydraulic cylinders 3161 are provided with a clamping base plate 3163 through flanges, the two second hydraulic cylinders 3161 stably drive the clamping base plate 3163 to do telescopic motion, the inner wall of the clamping base plate 3163 is welded with a fixed clamping plate 3164, the inner wall of the clamping base plate 3163 is symmetrically provided with two clamping support plates 3165, each clamping support plate 31, the movable clamping plate 3167 is installed at the top ends of four third hydraulic cylinders 3166 of the two clamping support plates 3165 through flanges, the movable clamping plate 3167 is stably driven to move up and down through the four third hydraulic cylinders 3166, so that the distance between the movable clamping plate 3167 and the fixed clamping plate 3164 is adjusted, a bus transmitted by automatic clamping is realized through the clamping force formed between the movable clamping plate 3167 and the fixed clamping plate 3164, two sides of the lower end of the movable clamping plate 3167 are respectively connected with the two clamping support plates 3165 through the two buffer springs 3168, the buffer springs 3168 play a good buffering role, and the phenomenon that the bus copper bar is damaged by the movable clamping plate 3167 at an excessively high speed is prevented.

No. one the die cavity runs through to terminal surface down from movable mould 34 up end, No. two the die cavities runs through to terminal surface down from cover half 37 up end, No. one die cavity and No. two die cavities are the shape, the omega type structure that size homogeneous phase equals, make the structure of a die cavity and No. two die cavities the same with generating line both ends structure, thereby can carry out spacing accurate unloading, and a die cavity and No. two die cavity upper ends all lean out to extend and are provided with direction die carrier 341, direction die carrier 341 is the omega type structure that corresponds with a die cavity and No. two die cavities homogeneous phases, direction die carrier 341 plays the effect of guide generating line unloading, on the generating line transferred to direction die carrier 341 inner wall, can be with the help of the slope extension structure of direction die carrier 341 automatic sliding in a die cavity and No. two die cavities, thereby the efficiency of generating line unloading has been improved.

The first lifting guide mechanism 39 and the second lifting guide mechanism 310 are identical in shape, structure and size, the first lifting guide mechanism 39 and the second lifting guide mechanism 310 are identical in structure and convenient to move synchronously, the first lifting guide mechanism 39 comprises a guide base block 391 welded on the outer wall of the movable mold 34, a first hydraulic cylinder 392 is installed on the guide base block 391, the middle of the first hydraulic cylinder 392 is fixed on a guide fixed plate 393, the guide fixed plate 393 is welded on the outer wall of the movable mold 34 and plays a role in fixedly supporting the middle of the first hydraulic cylinder 392, a lifting plate 394 is installed at the top end of the first hydraulic cylinder 392 through a flange, the right end of the lifting plate 394 is just located right below the first mold cavity, and the first hydraulic cylinder 392 drives the lifting plate 394 to carry out bus up-and-down lifting transmission work.

Rubber pads are arranged on the inner walls of the fixed clamping plate 3164 and the movable clamping plate 3167, the rubber pads play a role in protecting the surface of the bus copper bar, and the phenomenon that the surface of the bus copper bar is damaged due to overlarge clamping force between the fixed clamping plate 3164 and the movable clamping plate 3167 is prevented.

When the device works, firstly, the width between the fixed die 37 and the movable die 34 is determined according to the length of the bus, an operator drives the first lead screw 35 to rotate on the fixed die 37 through the hand wheel 36, the first lead screw 35 drives the movable die 34 to move, the movable die 34 stably moves on the two first linear slide rails 32 through the two movable columns 33, so that the distance between the fixed die 37 and the movable die 34 is adjusted, the width between the first die cavity and the second die cavity is adjusted, after the distance is adjusted, two ends of the bus are placed into the first die cavity and the second die cavity, two ends of the bus respectively drop onto the first lifting guide mechanism 39 and the second lifting guide mechanism 310 through the first die cavity and the second die cavity, then the first lifting guide mechanism 39 and the second lifting guide mechanism 310 synchronously start to work to lift and transmit the bus to a designated height, then the clamping mechanism 316 starts to work, the two second hydraulic cylinders 3161 drive the clamping base plate 3163 to do telescopic movement, the clamping base plate 3163 drives the movable clamping plate 3167 and the fixed clamping plate 3164 to move to the upper end and the lower end of the busbar copper bar, at the moment, the four third hydraulic cylinders 3166 start to work, the four third hydraulic cylinders 3166 drive the movable clamping plate 3167 to slowly move downwards under the action of the buffer force of the two buffer springs 3168, the middle part of the transmitted busbar is clamped by the clamping force formed between the movable clamping plate 3167 and the fixed clamping plate 3164, at the moment, the two second hydraulic cylinders 3161 move back to the original position again, then the movable motor 314 starts to work, the movable motor 314 drives the second lead screw 313 to rotate, the second lead screw 313 drives the movable block 315 to stably move left and right under the assistance of the limit of the two guide shafts 312, the movable block 315 drives the clamping mechanism 316 to transmit the busbar to a specified position so as to perform the next detection work, the automatic clamping and conveying function of the busbar of the power distribution cabinet, the automatic degree is high, and it is fast to press from both sides to get conveying speed, has solved the operation complicacy that current switch board generating line manual detection mode exists, intensity of labour is big, press from both sides to get lay slow, degree of automation is low and work efficiency low grade difficult problem, has reached the purpose.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a switch board copper bar generating line quality testing auxiliary device which characterized in that: the movable type automatic feeding device comprises a base plate (31), two first linear sliding rails (32) are mounted on the upper end face of the base plate (31), a movable column (33) is mounted on each first linear sliding rail (32), movable dies (34) are mounted at the upper ends of the two movable columns (33) of the two first linear sliding rails (32), a first lead screw (35) is mounted in the middle of each movable die (34) through threads, a hand wheel (36) is arranged at the left end of the first lead screw (35), a fixed die (37) is mounted at the right end of the first lead screw (35) through a bearing, two fixed columns (38) are symmetrically welded on the rear end face of the fixed die (37), and the lower ends of the two fixed columns (38) are mounted on the; a first die cavity is formed in the inner wall of the movable die (34), a second die cavity corresponding to the first die cavity is formed in the inner wall of the fixed die (37), a first lifting guide mechanism (39) is installed on the outer wall of the movable die (34), and a second lifting guide mechanism (310) corresponding to the first lifting guide mechanism (39) is installed on the outer wall of the fixed die (37); the upper end surface of the base plate (31) is provided with two mounting plates (311), two guide shafts (312) are symmetrically mounted between the two mounting plates (311), the inner wall of the mounting plate (311) positioned on the left side of the base plate (31) is provided with a second lead screw (313) through a bearing, the right end of the second lead screw (313) is provided with a moving motor (314) through a coupler, the moving motor (314) is mounted on the inner wall of the mounting plate (311) positioned on the right side of the base plate (31) through a motor base, and the second lead screw (313) is positioned between the two guide shafts (312); a moving block (315) is arranged on the second lead screw (313) through threads, and the upper end and the lower end of the moving block (315) are respectively arranged on the two guide shafts (312) in a sliding fit mode; the clamping mechanism (316) is installed on the inner wall of the moving block (315), the clamping mechanism (316) comprises two second hydraulic cylinders (3161) installed on the inner wall of the moving block (315), the middle parts of the two second hydraulic cylinders (3161) are fixedly installed on a fixing frame (3162), the fixing frame (3162) is welded on the inner wall of the moving block (315), the top ends of the two second hydraulic cylinders (3161) are provided with clamping base plates (3163) through flanges, the inner wall of each clamping base plate (3163) is welded with a fixed clamping plate (3164), the inner wall of each clamping base plate (3163) is symmetrically provided with two clamping support plates (3165), each clamping support plate (3165) is provided with two third hydraulic cylinders (3166), the top ends of the four third hydraulic cylinders (3166) of the two clamping support plates (3165) are provided with movable clamping plates (3167) through flanges, and two sides of the lower end of each movable clamping plate (3167) are respectively connected with the two clamping support;

the first die cavity penetrates from the upper end face to the lower end face of the movable die (34), the second die cavity penetrates from the upper end face to the lower end face of the fixed die (37), the first die cavity and the second die cavity are of omega-shaped structures with the same shape and size, guide die frames (341) are arranged at the upper ends of the first die cavity and the second die cavity in an outward inclined extending mode, and the guide die frames (341) are of omega-shaped structures corresponding to the first die cavity and the second die cavity;

rubber pads are arranged on the inner walls of the fixed clamping plate (3164) and the movable clamping plate (3167).

2. The power distribution cabinet copper bar bus quality detection auxiliary device according to claim 1, characterized in that: the shape, the structure, the size homogeneous phase of first lift guiding mechanism (39) and second lift guiding mechanism (310), first lift guiding mechanism (39) is including welding direction base block (391) on movable mould (34) outer wall, install a pneumatic cylinder (392) on direction base block (391), the middle part of a pneumatic cylinder (392) is fixed on direction fixed plate (393), direction fixed plate (393) welds on movable mould (34) outer wall, lifter plate (394) are installed through the flange in the top of a pneumatic cylinder (392), and the right-hand member of lifter plate (394) just in time is located a die cavity under.