KR101625951B1 - In circuit tester inspection System for Flexible PCB assembly for earjack assembly - Google Patents

Abstract

Provided is an inspection system for an earphone jack assembly. The system includes: a main body casing which has an embedded controller, is one integrated piece to provide internal space for installation and has a working table on the top surface of the main body casing so that the working table is capable of opening and shutting; a placing block which is combined with and fixed on the top surface of the working table and has a socket placing terminal in which an earphone jack socket is placed, a connector placing terminal in which a connector is placed and a C-cut unit placing terminal in which a C-cut unit is placed, which are depressed into the placing block on the top surface; an insertion and removal force inspection unit which is placed on the flank side of the placing block on the top surface of the working table and inspects insertion force and removal force of the earphone jack socket placed in the socket placing terminal; a lateral transport unit which is placed inside the main body casing and provides transport force for sliding movements of the insertion and removal force inspection unit; a pressing block which is placed perpendicularly to and above the placing block, ascends away from and descends down to the placing block and has a pressing slot, depressed into the bottom surface of the pressing block, which accepts a part of the earphone jack socket and presses down the earphone jack socket and a pusher which presses down an inspection pin and the connector for inspecting the C-cut unit; and a lifting unit for lifting movements of the pressing block. As a consequence, the present invention is capable of automatically performing a collective inspection of each part of the earphone jack assembly and ensuring the inspection is performed stably.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an inspecting apparatus for an ear-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an inspection apparatus, and more particularly, to an inspection apparatus that can automatically perform inspection of each part of an ear jack assembly, For example.

Generally, an ear jack assembly is an assembly configured to transmit and receive a sound signal through connection with an earphone while being applied to various portable electronic devices. An ear jack socket is connected to an earphone and a main circuit of an electronic device. And a flexible printed circuit board on which the connector and the circuit are printed.

Such an ear jack assembly performs various inspections after its manufacture, and at this time, the inspection is carried out by inspecting inserting force and kicking force for inserting or ejecting the ear plug into the ear jack socket, Inspection of the contact, inspection of the connector short or short (open / short), and inspection of the C cut portion of the flexible circuit board (contact point for transmitting / receiving a sound signal).

At this time, the various parts of the ear jack assembly are inspected by dedicated equipment for each inspection, or by manual inspection by the operator. In this regard, 10-1383216, 10-1185601, 10-1246309, and the like.

However, in the above-described conventional techniques, since the inserting force and the pushing force of the jack socket are inspected only after the jack assembly is simply placed on the inspection apparatus, or the connector is inspected, There is a problem in that the ear jack socket is caused to flow in the process of being inserted into the socket, so that a precise inspection can not be performed.

Further, since the inspection of the ear jack assembly is individually performed in each of the plurality of testing apparatuses as shown in the above-described conventional techniques, it is necessary that the whole inspection time is long and a plurality of testing apparatuses There has been a problem in that an increase in cost is incurred.

In addition, since the size of the contact portion of the C cut portion formed on the flexible circuit board is very small, it is inconvenient to perform the inspection only by manual operation because the dedicated equipment for inspecting the portion is not provided.

SUMMARY OF THE INVENTION The present invention has been made in order to solve various problems of the related art described above, and it is an object of the present invention to provide a jack assembly for automatic testing of each part of the ear jack assembly, The present invention provides an inspection device for an ear jack assembly according to a new type, which can precisely inspect the ear jack assembly.

According to another aspect of the present invention, there is provided an apparatus for inspecting an ear jack assembly comprising an ear jack socket, a flexible circuit board, a connector, and a C cut portion, A main body case having an upper surface provided with a work table so as to be openable and closable; A seating block which is coupled to an upper surface of the work table and has a socket seating end on which a jack socket is seated, a connector seating end on which the connector is seated, and a C cut seating recess on which the C cut is seated; A shovel removing force checking unit located on a side of the placing block on an upper surface of the work table and inspecting an insertion force and a removing force of an ear jack socket seated on the socket seating end; A horizontal moving part positioned in the main body case to provide a moving force for sliding movement of the insertion / removal force detection part; And a pushing groove for pressing the jack socket is formed and a check pin and a connector for inspecting the cut portion are formed on the bottom face of the socket block. A pressing block having a pusher for pressing; And a lifting / lowering unit for lifting and moving the pressing block.

Here, a contact block made of a metal material that can be energized is further provided on the seating portion of the C cut portion formed on the upper surface of the seating block.

In addition, the mopping and breaking force testing unit may include a moving plate slidably mounted on the upper surface of the work table to be slidable toward the seating block, a ear plug fixed to the moving plate and inserted into an ear jack socket seated on the socket seating end, And a load cell for measuring an insertion force of the ear plug.

In addition, the work table may be provided with a cutting hole formed along a portion where the insertion / removal force detecting unit is moved, the horizontal moving unit being fixed to the bottom surface of the work table in the main body case, A connecting bar that passes through the hole and connects the cylinder rod of the horizontal moving cylinder to the insertion / removal force detecting portion, a cutting bar connected to the bottom of the working table so as to be moved together with the connecting bar, And a closing plate that closes the opening portion of the second housing.

Further, the lifting / lowering unit includes a guide rod, which is vertically and vertically positioned on the upper surface of the work table, on the rear side of the work block, a guide frame for installing the guide rod, And a lifting and lowering cylinder that is vertically installed in the main body case and provides a moving force for lifting and lowering the lifting and lowering plate.

As described above, the inspection apparatus for an ear jack assembly according to the present invention has the effect that the inspection speed can be rapidly performed because the inspection of the entire portion of the ear jack assembly is continuously performed in a lump.

Particularly, the inspection apparatus for an ear jack assembly of the present invention can prevent the flow generated during the inspection by allowing each inspection portion of the ear jack assembly to be pressed and fixed at the upper portion during the inspection of the ear jack assembly, So that an accurate inspection can be performed.

1 is a plan view illustrating an ear jack assembly to be inspected by an inspection apparatus for an ear jack assembly according to an embodiment of the present invention;
Fig. 2 is a front view showing a testing apparatus for an ear jack assembly according to an embodiment of the present invention.
3 is a plan view for explaining an inspection apparatus for an ear jack assembly according to an embodiment of the present invention.
4 is a plan view for explaining the structure of the seating block of the testing device for the ear jack assembly according to the embodiment of the present invention.
5 is a state diagram illustrating a structure of a horizontal moving part of an inspection device for an ear jack assembly according to an embodiment of the present invention.
6 is a side view illustrating a testing apparatus for an ear jack assembly according to an embodiment of the present invention
7 is a state diagram illustrating a structure of a lifting and lowering moving part of an inspection device for an ear jack assembly according to an embodiment of the present invention.
8 is a state diagram illustrating an operation state of the horizontal movement unit among the testing apparatuses for an ear jack assembly according to the embodiment of the present invention.

Hereinafter, a preferred embodiment of an inspection apparatus for an ear jack assembly of the present invention will be described with reference to FIGS. 1 to 8 attached hereto.

Prior to the description of the embodiment, the ear jack assembly 10 inspected by the testing apparatus for the ear jack assembly of the present invention comprises an ear jack socket 11 to which an earphone is connected as shown in the attached Figure 1, A connector 12 connected to the main circuit to transmit and receive various signals, a C cut portion 13 provided as a contact portion for transmitting and receiving a sound signal, and a film 14 printed with a circuit.

The inspection apparatus for an ear jack assembly according to the present invention is characterized in that the inspection of the insertion force and the extraction force of the ear jack socket 11 of the ear jack assembly 10 described above and the inspection of the electrical contacts of the ear jack socket 11 Short / open / short inspection of the connector 12, and short / short / short inspection of the C-cut section 13. [0031] FIG.

Further, in the drawings illustrating the testing apparatus for an ear jack assembly according to the present invention, it is difficult to grasp a clear structure due to overlapping of lines when the entire structure is expressed in a lump, Only the excerpts are shown.

FIG. 3 is a plan view for explaining an inspection apparatus for an ear jack assembly according to an embodiment of the present invention, and FIG. 3 is a plan view for explaining an inspection apparatus for an ear jack assembly according to an embodiment of the present invention, 6 is a side view illustrating an inspection apparatus for an ear jack assembly according to an embodiment of the present invention.

As shown in these drawings, an inspection apparatus (hereinafter referred to as "inspection apparatus") for an ear jack assembly according to an embodiment of the present invention mainly includes a main body case 100, a seating block 200, A horizontal moving part 400, a pressing block 500 and a lifting / lowering moving part 600 to which the ear jack socket 11 of the ear jack assembly 10 and the connector 12 and the C-cut part 13 can be sequentially and collectively inspected by an automated process, and the flow to each inspection site can be prevented during the inspection.

The following is a description of each configuration.

First, the body case 100 is a portion forming the appearance of the inspection apparatus according to the embodiment of the present invention.

The main body case 100 includes a control unit (not shown), and a cylinder having an upper surface opened to provide a mounting space therein.

At this time, the work table 110 is opened and closed on the opened upper surface of the main body case 100.

In addition, as shown in FIG. 2 attached to the front surface of the main body case 100, various operation buttons 121 and a display panel 122 for displaying various information are provided.

Next, the seating block 200 is a portion to be inspected, that is, a seat for the ear jack assembly 10 to be placed thereon.

The seating block 200 is replaceably fixed to the upper surface of the work table 110. That is, the seating block 200 may be selected differently depending on the characteristics of the various types of ear jack assemblies 10 so as to be coupled to the work table 110.

4, a socket mounting end 210 on which the jack socket 11 is mounted and a connector mounting end 220 on which the connector 12 is mounted are formed on the upper surface of the seating block 200, And a C-cut part seating end 230 on which the C-cut part 13 is seated are respectively formed and the respective seating ends 210,220 and 230 are positioned according to each type of ear jack assembly 10, .

At this time, the connector seating end 220 is provided with an inspection connector (not shown in detail) for engaging with the connector 12 forming the ear jack assembly 10 to inspect the connector 12 for defects, The inspection connector is configured to be capable of transmitting signals to a control unit in the main body case 100

Also, in the embodiment of the present invention, it is further provided that the contact block 231 is further provided in the C-cut part seating end 230 formed on the upper surface of the seating block 200.

Particularly, the contact block 231 is made of an electrically conductive metal material, so that the contact block 231 can communicate with the C cut portion 13 constituting the ear jack assembly 10, And the wear of the inspection pins 520 can be prevented. [0051] As shown in FIG.

That is, in the case of the C cut portion 13, since the size thereof is extremely small and the shape thereof is " C ", the contact area is small and there is a possibility that the conduction with the test pin 520 may not be smooth. The inspection pin 520 can be accurately inspected by expanding the electric field applied to the C cut portion 13 by using the C cut portion 13, Wear of the C-cut part seating end 230 is generated when repetitive contact with the seating end 230 occurs but the wear of the C-cut part seating end 230 is prevented by the provision of the contact block 231 made of a metal material To be able to do.

Next, the insertion force removing unit 300 is a part for inserting and removing the ear jack socket 11 of the ear jack assembly 10.

The insertion force of the ear jack socket 11 placed on the socket seating end 210 and the insertion force of the ear jack socket 11 positioned on the side of the seating block 200 among the upper surface of the work table 110, And the excavating force testing unit 300 includes a moving plate 310, an ear plug 320, and a load cell 330.

The moving plate 310 is installed on the upper surface of the work table 110 so as to be slidable toward the seating block 200. The earplug 320 is fixed to the moving plate 310, The load cell 330 is configured to be inserted into the ear jack socket 11 seated on the seating end 210. The load cell 330 is positioned on the rear side of the ear plug 320 And is configured to measure the load when the ear plug 320 is inserted into or detached from the ear jack socket 11.

At this time, the ear plug 320 is formed in a corresponding structure in which connection is made to each contact terminal (not shown) in the ear jack socket 11, so that an insertion force and a removal force of the ear jack socket 11 Not only the measurement but also whether or not there is a defect with respect to each of the contact terminals is also checked.

A guide rail 111 for supporting the sliding movement of the moving plate 310 is provided at a portion of the upper surface of the working table 110 where the moving plate 310 is moved, A cut-out hole 112 is formed in a portion of the upper surface of the movable plate 310 where the movable plate 310 is contacted, along the moving direction of the movable plate 310. This is as shown in FIGS. 3 and 5 attached hereto.

Next, the horizontal moving part 400 provides a moving force for the sliding movement of the insertion / removal force detection part 300.

The horizontal movement unit 400 includes a horizontal movement cylinder 410 fixed to the bottom of the work table 110 in the body case 100 as shown in FIGS. 2, 5 and 6, A connection bar 420 for passing the cylinder rod 411 of the horizontal movement cylinder 410 through the incision hole 112 of the work table 110 to the movement plate 310 of the insertion / removal force inspection unit 300, .

That is, by positioning the horizontal movement cylinder 410 in the main body case 100, components exposed to the outside of the work table 110 can be minimized, thereby preventing damages due to the external environment or occurrence of malfunctions.

Particularly, in the embodiment of the present invention, it is further provided that the horizontal moving part 400 further comprises a closing plate 430. [

That is, since the horizontal movement cylinder 410 is positioned in the main body case 100, the cutting table 112 is formed with a cutting hole 112 for penetrating the connecting bar 420 as described above Therefore, there is a possibility that foreign foreign matter may be introduced through the incision hole 112, and this can be prevented through the provision of the closing plate 430.

The closing plate 430 is connected to the bottom of the work table 110 so as to be moved together with the connecting bar 420 so as to move the moving plate 310 constituting the insertion / And is configured to close the opening portion of the incision hole 112. [ At this time, in a state in which the closing plate 430 opens the opening portion of the cut-off hole 112, the moving plate 310 constituting the cutting and breaking force inspection portion 300 is moved from the upper surface of the work table 110 to the cut- ), Which is shown in Fig. 8 attached herewith.

Next, the pressing block 500 is a portion for fixing the ear jack assembly 10 which is seated on the seating block 200.

In other words, when the test is performed in a state where the ear jack assembly 10 is not fixed, inspection failure due to the occurrence of flow may be caused. Therefore, when the ear jack assembly 10 is inspected, So that accurate inspection can proceed.

Of course, it is possible to prevent the ear jack assembly from flowing during the inspection by screwing the ear jack assembly to the jig before conducting the inspection, as disclosed in the patent 10-1246309, It takes a long time to work for a flexible circuit board, and in the case of a flexible circuit board, it is impossible to securely fasten the screw. Therefore, there is a problem that stable fixing can not be achieved. As disclosed in Japanese Patent Application No. 10-1185601, The jack socket may be fixed to the mounting portion in a precisely fixed state. However, the jack socket can not be fixed to the flexible circuit board, and the ear socket can be vertically moved.

Therefore, in the embodiment of the present invention, the push block 500 automatically presses and fixes the ear jack assembly 10 at the top of the ear jack assembly 10 immediately before the inspection of the ear jack assembly 10, So that the pressure can be released while being automatically separated from the ear jack assembly 10 immediately after the inspection is completed.

The push block 500 according to an embodiment of the present invention is positioned in the upper right room of the seating block 200 and is raised and lowered toward the seating block 200. A portion of the jack socket 11 A pushing groove 510 for pressing the jack socket 11 is formed and a push pin 530 for pushing the check pin 520 and the connector 12 for inspecting the C cut portion 13 are respectively provided .

At this time, since the inner surface of the pressing groove 510 and the bottom surface of the pusher 530 are made of a silicone material, damage due to the impact of the ear jack assembly 10 due to the pressing of the pressing block 500 And the occurrence of damage due to excessive pressure can be prevented.

The test pin 520 is electrically connected to the C cut portion 13 constituting the ear jack assembly 10 so as to be used as a pin for inspecting the C cut portion 13 so that its upper end is connected to a signal line .

In the embodiment of the present invention, the position guide pin 540 is formed to protrude downward from the bottom surface of the pressing block 500, and the position guide pin 540 is inserted into the upper surface of the seating block 200 It is further suggested that the hole 240 is formed through.

That is, by providing the position guide pin 540 and the position guide hole 240, the relative position between the pressing block 500 and the seating block 200 can be always exactly matched, So that the ear jack assembly 10 can be accurately fixed.

Next, the lifting / lowering moving part 600 is a part for moving the pressing block 500 up and down.

The lifting and lowering unit 600 includes a guide rod 610, a guide frame 620, a lifting plate 630, and a lifting and moving cylinder 640 as shown in FIG.

Here, the guide rod 610 is a rod installed vertically up and down on the upper surface of the work table 110 while being positioned on the rear side of the seating block 200.

The guide frame 620 is a portion for mounting the guide rod 610. The guide frame 620 includes two vertical side frames 621 vertically provided on both sides of the guide rod 610, And a horizontal frame 622 connecting the upper ends of the frames 621 and 621 to each other.

At this time, the upper end of the guide rod 610 is fixed to the horizontal frame 622 constituting the guide frame 620.

Further, the lifting plate 630 is a plate formed to be lifted and lowered under the guidance of the guide rod 610. At this time, the rear end of the above-described pressing block 500 is fixed to the tip of the lifting plate 630.

The lifting and lowering cylinder 640 is a cylinder that provides a moving force for lifting and lowering the lifting and lowering plate 630. The lifting and lowering cylinder 640 is vertically installed in the main body case 100, And is coupled to the lifting plate 630 through the lifting plate 110.

Hereinafter, the inspection process using the inspection apparatus according to the embodiment of the present invention will be described in more detail.

First, in the initial state, the ear plug 320 constituting the inserting / removing force inspection part 300 is positioned at a side of the seating block 200 in a state spaced apart from the seating block 200, And is positioned away from the seating block (200) in a room right above the seating block (200).

In this initial state, the ear jack assembly 10 is seated into the respective seating ends 210, 220, and 230 that are formed on the upper surface of the seating block 200. At this time, the ear jack socket 11 of the ear jack assembly 10 is seated in the socket seating end 210 of the seating block 200 and the connector 12 of the ear jack assembly 10 is seated in the seating block And the C cut portion 13 of the ear jack assembly 10 is seated in the C-cut portion seating end 230 of the seating block 200. The C-

When the operation button 121 provided in the main body case 100 is operated, the lifting and lowering cylinder 640 constituting the lifting and lowering moving part 600 is operated by the control of the control part, do.

When the lifting plate 630 is moved downward, the pressing block 500 fixed to the lifting plate 630 is moved downward together with the lifting plate 630, The ear jack assemblies 10 mounted on the respective seating ends 210, 220 and 230 of the seating block 200 are pressed and fixed while being stacked on the upper surface of the seating block 200.

That is, the pressing groove 510 formed on the bottom surface of the pressing block 500 presses and fixes the top surface of the ear jack socket 11 seated on the socket receiving end 210 of the seating block 200, The inspection pin 520 provided on the bottom surface of the block 500 presses and fixes the C cut portion 13 seated on the C cut portion seating end 230 of the seating block 200, The pusher 530 provided in the mounting block 200 presses the connector 12 seated in the connector seating end 220 of the seating block 200.

Particularly, while the pressing block 500 is superimposed on the upper surface of the seating block 200, a position guiding pin 540 protruding downward from the bottom surface of the joining block 500 is formed on the upper surface of the seating block 200 The relative positions of the pressing block 500 and the seating block 200 are exactly matched with each other by inserting the pressing block 500 into the position guide hole 240. As a result, So that the pressure fixing can be accurately performed.

In addition, in a state where the pressing block 500 presses and fixes the respective portions of the ear jack assembly 10, the check pin 520 provided on the pressing block 500 contacts the C The test pin 520 is inserted into the C cut part seating end 230 in a state where the contact block 231 is provided and the C cut part 13 is electrically connected to the cut part 13. At this time, Even if the C-cut portion 13 is not exactly matched to the C-cut portion 13, defect inspection for the C-cut portion 13 can be accurately performed by conduction with the contact block 231. [

In addition, the inspection connector provided in the connector seating end 220 of the seating block 200 is connected to the connector 12 constituting the ear jack assembly 10, , A check is performed on the short circuit.

After the connector 12 and the C cut portion 13 of the ear jack assembly 10 are inspected by the above process, the horizontal movement cylinder 410, which constitutes the horizontal movement portion 400, The moving plate 310 constituting the insertion / removal force inspection part 300 is horizontally moved toward the seating block.

The earplug 320 fixed to the moving plate 310 is moved toward the seat block 200 and the ear jack socket 11 seated on the socket seating end 210 of the seating block 200, Lt; / RTI >

At this time, when the ear plug 320 is inserted into the ear jack socket 11, the insertion force of the ear plug 320 is measured by the load cell 330 provided at the rear end of the ear plug 320, In the state where the ear plug 320 is inserted into the ear jack socket 11, it is checked whether or not each contact terminal in the ear jack socket 11 is defective.

After the defect inspection on each contact terminal in the ear jack socket 11 is completed, the operation of the horizontal movement cylinder 410, which is the horizontal movement part 400, is performed again, and the insertion / removal force inspection part 300 The moving plate 310 is horizontally moved toward the side opposite to the seat block 200 and returned to the initial position.

At this time, when the ear plug 320 is detached from the ear jack socket 11 by the movement of the moving plate 310, the detachment force is measured by the load cell 330.

When the inspection of the ear jack assembly 10 is completed by the continuous operation of each of the above-described processes, the lifting / lowering cylinder 640 of the lifting / lowering moving unit 600 is operated to move the lifting plate 630 upward, The pressing block 500 is separated from the seating block 200 and returned to the initial position.

The operator then removes the tested ear jack assembly 10 from the seating block 200 and ejects the new ear jack assembly 10 to the seating block 200 so that the ear jack assembly 10 ) Is performed continuously.

As a result, the inspection apparatus for the ear jack assembly according to the present invention can perform inspection of the entire area of the ear jack assembly 10 in a lump, but continuously, so that the inspection speed can be rapidly performed.

Particularly, the inspection apparatus for an ear jack assembly according to the present invention allows each inspection region of the ear jack assembly 10 to be pressed and fixed at the time of inspection for the ear jack assembly 10, So that stable and accurate inspection can be performed.

10. Ear Jack Assembly 11. Ear Jack Socket
12. Connector 13. C-
14. Flexible circuit board 100. Body case
110. Work table 111. Guide rail
112. Incision ball 121. Operation button
122. Display panel 200. Seat block
210. Socket seating end 220. Connector seating end
230. C-cut part rest 231. Contact block
240. Position guide groove 300. Shovel removal force inspection part
310. Moving plate 320. Ear plug
330. Load cell 400. Horizontal moving part
410. Horizontal moving cylinder 411. Cylinder rod
420. Connecting bar 430. Closing plate
500. Pressure block 510. Pressurized groove
520. Test pin 530. Pusher
540. Position guide pin 600. Upper /
610. Guide rod 620. Guide frame
621. Vertical side frame 622. Horizontal side frame
630. Lifting plate 640. Lifting cylinder
641. Cylinder rod

Claims (5)

An apparatus for inspecting an ear jack assembly comprising a jack socket, a flexible circuit board, a connector, and a C cut portion,
A main body case having a control unit built in, a main body having a work table openable and closable on an upper surface thereof,
A seating block which is coupled to an upper surface of the work table and has a socket seating end on which a jack socket is seated, a connector seating end on which the connector is seated, and a C cut seating recess on which the C cut is seated;
A shovel removing force checking unit located on a side of the placing block on an upper surface of the work table and inspecting an insertion force and a removing force of an ear jack socket seated on the socket seating end;
A horizontal moving part positioned in the main body case to provide a moving force for sliding movement of the insertion / removal force detection part;
And a pushing groove for pressing the jack socket is formed and a check pin and a connector for inspecting the cut portion are formed on the bottom face of the socket block. A pressing block having a pusher for pressing;
And a lifting / lowering part for lifting and moving the pressing block,
The shovel removal force inspection unit
A moving plate slidably mounted on the upper surface of the work table toward the seating block,
An ear plug fixed to the moving plate and inserted into an ear jack socket seated on the socket receiving end,
And a load cell for measuring an insertion force of the ear plug. The method according to claim 1,
And a contact block made of a conductive metal material is further provided on a seating end of the C cut portion formed on the upper surface of the seating block. delete The method according to claim 1 or 2,
Wherein the cutting table is formed on the work table along an area where the cutting and breaking force inspection unit is moved,
The horizontal moving part
A horizontal movement cylinder fixedly installed on a bottom surface of the work table in the main body case,
A connection bar for passing the cylinder rod of the horizontal movement cylinder through the incision hole of the work table to the insertion / removal force inspection portion,
And a closing plate connected to move along with the connecting bar in contact with the bottom surface of the work table and to close the opening portion of the incision hole according to the movement of the insertion / removal force checking unit. The method according to claim 1,
The lifting /
A guide rod which is vertically and vertically positioned on a rear side portion of the seating block,
A guide frame for mounting the guide rod,
A lifting plate that is moved up and down under the guidance of the guide rod,
And a lifting and lowering cylinder provided vertically in the main body case to provide a moving force for lifting and lowering the lifting and lowering plate.

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