KR200272307Y1 - Adjust apparatus for chaine width of pcb buffer unit - Google Patents

Abstract

The present invention relates to a chain spacing control device for a chain buffer unit for a circuit board. The main purpose of the invention is to move the front chain drive assembly to reduce or increase the distance from the rear chain drive assembly, and the upper half and the lower half. Are simultaneously moved so that the upper half and the lower half maintain the same distance.

The chain buffer unit of the present invention for achieving the above object is a pedestal (1), the front support plate 11 and the rear support plate member 12 vertically placed on the pedestal, the front, rear support plate member (11) A plurality of slide guide rods 13 connected between the plurality of slide rods 12, a rear chain drive assembly 2 erected as a rear support frame 21 on the rear support plate member 12, and the slide guide rods ( 13) and the front chain drive assembly (3) erected by the front support frame (31) based on the sliding member (30) and the sliding member (30) as a base to enable the transfer before and after. In the made, the lead screw penetrating the front support plate 11 and the rear support plate member 12, the front end protruding to the front end has a handle 41, the driving chain sprocket 42 is condensed at the rear end ( 4); A nut member (40) which is screwed into the stop of the lead screw (4) and fixed to the sliding member (30) to transfer the sliding member (30) before and after; It is arranged to be rotatable using the bearing (54) on the rear support frame (21), but the screw rod (51) in which the driven chain sprocket (53) is condensed at the rear end, and the screw rod (51) and screw coupling However, the gap adjusting shaft (5) consisting of a nut rod (52) fixed to the front support frame (31) by using a flange portion (52a); It comprises a main chain chain sprocket (42) of the rear end of the lead screw (4), and the interval adjusting chain (6) connecting the driven chain sprocket (53) of the screw rod (51).

Description

Chain spacing device for chain buffer unit for circuit boards {ADJUST APPARATUS FOR CHAINE WIDTH OF PCB BUFFER UNIT}

The present invention relates to a chain spacing device for a chain buffer unit for a circuit board. More specifically, in an upper and lower circulation transfer chain having an arbitrary height, the distance between the upper and lower shafts is always the same. It is characterized by being adjustable.

In general, the circuit board chain buffer unit for the circuit board is used in the circuit board automatic production line, such as the circuit component assembly device, the inspection device, etc. in front or behind, and the structure, as shown in Figure 1 as shown in Figure 1 A plurality of slide guide rods 13 connected between the front support plate 11 and the rear support plate 12 vertically placed on the pedestal, and the front and rear support plate 11 and 12; A sliding member 30 which is allowed to be conveyed before and after the rear chain drive assembly 2, which is erected upward on the support plate member 12, the slide guide rod 13, and the sliding member; It consists of a front chain drive assembly (3) erected at the same height as the rear chain drive assembly based on (30), and the front chain drive assembly and the rear chain drive assembly (2) ( 3) chains 22 and 32 respectively facing each other The T-shaped attachment is provided, and can be conveyed upward or downward while supporting both ends of the circuit board P.

In addition, the front chain drive assembly 3 can adjust the distance from the rear chain drive assembly 2 by moving forward or backward along the slide guide rods 13.

That is, lead screws 4 intersecting the front support plate member 11 and the rear support plate member 12 are laid out, and the nut member 40 fitted to the lead screw is fixed to the sliding member 30 to the front. When the knob 41 of the protruding lead screw 4 is turned, the front chain drive assembly 3 including the sliding member 30 can move forward and backward.

However, in such a conventional chain buffer unit, when the front side chain drive assembly 3 is moved to narrow or discard the distance from the rear side chain drive assembly 2, the front side chain is provided because the adjusting means is provided only at the lower portion. The upper gap between the drive assembly (3) and the rear chain drive assembly (2) may be larger or smaller than the lower gap. If the upper and lower gaps are different, the circuit boards caught by the attachment of the chain may fall off or fit tightly. There was a closed end such as being transported.

Therefore, the present invention has been devised to solve the conventional problems as described above. The main purpose of the present invention is to move the front chain drive assembly to reduce or increase the distance from the rear chain drive assembly, and the upper half and the lower half are Simultaneously moved so that the upper half and the lower half can maintain the same distance without a separate fixing means or fixing work.

The chain buffer unit of the present invention for achieving the above object is a support, a front support plate and a rear support plate vertically placed on the support, a plurality of slide guide rods connected between the front and rear support plate, the rear A rear chain drive assembly erected as a rear support frame on a support plate, a sliding member which is inserted into the slide guide rod to allow forward and rearward transfer, and a front erected as a front support frame based on the sliding member as a base. A chain buffer unit consisting of a side chain drive assembly, comprising: a lead screw penetrating the front support plate material and the rear support plate material and having a handle at a front end protruding to a front end, and having a circular chain screw on the rear end; A nut member inserted into the stop of the lead screw, the nut member being fixed to the sliding member to transfer the sliding member before and after; The rear support frame is rotatably arranged to be rotatable using a bearing, and has a screw rod having a driven chain sprocket condensed at the rear end and a screw rod coupled to the screw rod, and a nut rod fixed to the front support frame using a flange portion. Spacing shaft; It comprises a main chain chain sprocket of the rear end of the lead screw and a gap adjusting chain connecting the driven chain sprocket of the screw rod.

1 is a side view showing a conventional buffer unit

Figure 2 is a side cross-sectional view showing a buffer unit of the present invention

3 is a front view showing the buffer unit of the present invention

4 is an enlarged cross-sectional view of main parts of another embodiment of the present invention;

Figure 5 is a side cross-sectional view showing the configuration of another embodiment of the present invention

Figure 6 is a side cross-sectional view showing only the main configuration of another embodiment of the present invention

<Description of the symbols for the main parts of the drawings>

1: base 2: rear chain drive assembly

3: rear side chain drive assembly 4: lead screw

5: gap adjustment shaft 11: front support plate

12: back support plate 13: slide guide rod

21: rear support frame 22: chain

30: sliding member 31: front support frame

32: chain 40: nut member

41: handle 42: circular chain sprocket

51: screw rod 52: nut rod

53: driven chain sprocket 55: female thread

The invention is described in more detail according to the accompanying drawings.

As shown in Figure 2, the chain buffer unit is installed on the base 1 with legs or wheels.

The front support plate 11 and the rear support plate 12 are vertically placed on the pedestal, and a plurality of slide guide rods for the sliding member 30 are disposed between the front and rear support plate 11 and 12. 13) Install.

On the rear support plate member 12, a rear side chain drive assembly 2 is installed using the rear side support frame 21, and the sliding member which can be moved forward and backward while being fitted to the slide guide rod 13 is provided. The rear side chain drive assembly 2 is attached to the rear side 30 using the front side support frame 31.

Then, the lead screw 4 is arranged to penetrate the front support plate member 11 and the rear support plate member 12, and the handle 41 is assembled at the front end protruding to the front, and the driving chain sprocket 42 is provided at the rear end. )).

At the stop of the lead screw 4, the nut member 40 is screwed in, and the nut member 40 is fixed to the sliding member 30 to transfer the sliding member 30 before and after. do.

The gap adjusting shaft 5 is installed on the front support frame 31 and the rear support frame 21.

The spacing adjusting shaft 5 is arranged to be rotatable using the bearing 54 on the rear support frame 21, but has a screw rod 51 in which a driven chain sprocket 53 is condensed at the rear end thereof, and this screw rod. Screw 51 and the screw, it is made of a nut rod 52 fixed to the front support frame 31 by using a flange portion (52a).

And it is configured by connecting the driven chain sprocket 53 and the driving chain sprocket 42 of the lower end of the lead screw (4) of the gap adjusting shaft (5) provided as described above with a spacing control chain (6).

On the other hand, the spacing control shaft 5 of the present invention can be used independently of the spacing control chain (6).

That is, as shown in Figure 5 one end is fixed in a state penetrating the rear support frame 21, the other end is inserted into the bush 56 fixed to the front support frame 31 the bush The bolt (57) screwed in (56) is to be able to loosen and tighten at any time.

In addition, as shown in FIG. 6, the end of the plate-shaped rod is fixed with a screw on the upper surface of the rear support frame 2, and the front end forms a long hole 58, and the screw inserted into the long hole in the front side supporting frame It is to be able to fix on the upper surface of (3).

The chain buffer unit of the present invention adjusts the distance between the front chain drive assembly (3) and the rear chain drive assembly (2) according to the width of the circuit board when it is to be used for any circuit board. Should be.

That is, the front chain drive assembly 3 must be moved toward the rear side chain drive assembly 2, or vice versa.

At this time, grab the handle 41 at the front end of the lead screw 4 and turn the lead screw 4.

When the lead screw 4 rotates, the sliding member 30 connected by the nut member 40 of the interruption moves forward or backward, so that the front support frame 31 is moved on the sliding member 30. The installed front side chain drive assembly 3 is moved forward or backward to adjust the attachment spacing of these chains.

In addition, in the present invention, at the rear end of the lead screw 4, the gap adjusting chain 6 caught by the circular chain sprocket 42 is rotated together, and the chain rotates the upper gap adjusting shaft 5 to assemble the front chain drive. The upper gap of the bree 3 and the rear chain drive assembly 2 is adjusted together.

That is, when the threaded rod 51 of the gap adjusting shaft 5 is turned by the driven chain sprocket 53, the nut rod 52 on the opposite side is pulled or pushed, and the chain drive on the front side as the nut rod 52 moves. The assembly 3 moves forward or backward, which is the same as the movement amount of the lead screw 4 described above, so that the moving distance of the lower half and the moving distance of the upper half are always the same.

The present invention as described in detail above, in adjusting the distance between the front chain drive assembly and the rear chain drive assembly, while moving the front chain drive assembly with the lead screw in the lower half, the gap adjustment shaft in the upper half Since it is possible to maintain the adjusted state at the same interval by using the same, the distance between both chain attachments is constant, so that the transfer of the circuit board can be perfected.

Claims (3)

A plurality of slide guide rods 13 connected between the pedestal 1, the front support plate 11 and the rear support plate 12 vertically placed on the pedestal, and the front and rear support plate 11 and 12 thereof. ), The sliding member mounted on the rear support plate member 12 to the rear chain drive assembly 2, which is erected as the rear support frame 21, and to the slide guide rod 13, before and after the slide member to enable the transfer. In the chain buffer unit which consists of the front side chain drive assembly 3 built up by the front side support frame 31 based on the 30 and the said sliding member 30, A lead screw 4 penetrating the front support plate member 11 and the rear support plate member 12 and having a handle 41 at a front end protruding to the front, and having a driving chain sprocket 42 condensed at a rear end thereof; A nut member (40) which is screwed into the stop of the lead screw (4) and fixed to the sliding member (30) to transfer the sliding member (30) before and after; It is arranged to be rotatable using the bearing (54) on the rear support frame (21), but the screw rod (51) in which the driven chain sprocket (53) is condensed at the rear end, and the screw rod (51) and screw coupling However, the gap adjusting shaft (5) consisting of a nut rod (52) fixed to the front support frame (31) by using a flange portion (52a); A distance adjusting chain (6) connecting the driven chain sprocket (42) at the rear end of the lead screw (4) to the driven chain sprocket (53) of the screw rod (51); Chain spacing device of the chain buffer unit for a circuit board comprising a. The method of claim 1, The gap adjusting shaft 5 is fixed in a state where one end is penetrated through the rear support frame 21 irrespective of the gap adjusting chain, and the other end of the bush 56 is fixed to the front support frame 31. And a bolt 57 inserted into the bush 56 so as to be fixed to the bush 56. The method of claim 1, The above-mentioned spacing adjusting shaft 5 has a rod shape irrespective of the spacing chain, and its end is fixed to the upper surface of the rear support frame 2 with a screw, and its tip forms a long hole 58 to be inserted into the long hole. Chain spacing device for a circuit board chain buffer unit, characterized in that the screw is fixed to the upper surface of the front support frame (3).