JPH0133414B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet conveying device, and particularly to a sheet conveying device made of synthetic resin, expanded polystyrene, or the like.

The applicant of this application is Patent No. 1431200 (Japanese Patent Publication No. 62-
21701), the present invention takes the main parts of the essential parts of the invention according to the above-mentioned patent No. 1431200 as the main parts of the essential parts of the structure, and to achieve the same purpose.

That is, the present invention includes a pair of endless chains that have linear running parts, move in the horizontal direction, and are arranged so that the linear running parts are parallel to each other, and a lower clamping piece that is fixed to the upper surface of the chains. , an upper clamping piece rotatably provided on the lower clamping piece, a spring that presses one end of the upper clamping piece against the opposite end of the lower clamping piece, and an abutting portion of the upper and lower clamping pieces, respectively. A clip for holding the edge of the sheet is made up of a needle material and a pad for receiving the needle material, and is fixed to the upper surface of the chain wheel on which the endless chain is wrapped around. It consists of a clip opening/closing disk having an inverted conical pressing surface for opening against resistance and a larger diameter than the chain wheel, and a large number of sheet edge holding clips are fixed to the endless chain. At the same time, the entire clip goes under the pressing surface of the clip opening/closing disk, and one end of the upper gripping piece of the sheet edge holding clip touches the pressing surface of the clip opening/closing disk provided at the turn. The present invention will be described below with reference to embodiments shown in the drawings. The present invention will be described below with reference to embodiments shown in the drawings.

In FIGS. 1 to 5, reference numerals 1 and 1 denote a pair of endless chains that have straight running parts and circulate in the horizontal direction, and these chains 1 and 1 are supported at predetermined positions on a base 2. It is arranged in parallel around each of the chain wheels 3, 3, and is configured to move intermittently in circulation at every predetermined pitch. Each of the chains 1 and 1 has chain pieces 5 and 6 linked to the upper and lower ends of a roller 4 that is rotatably supported in a vertical position, and runs along the chain running section between the chain wheels 3 and 3 at both ends. The chains 1, 1 are prevented from sagging by running in guide grooves 8 of a guide member 7 provided along the chain. 9 is a large number of clips fixed in parallel on the upper end surface side of each of the chains 1, 1;
Reference numeral 10 denotes a sheet made of synthetic resin, foamed polystyrene, or the like, and the edges of this sheet 10 are held by the clips 9 and transported intermittently.
The clip 9 holds the clamping pieces 9a and 9b with the pin 1.
1, and a spring 12 is loosely fitted to the pin 11 to apply a spring force to the tip abutting portion 13. 1 through brackets 14 and 15, and a clamping piece 9
b is horizontally protruded outward and supported, and the inner end portion of the upper clamping piece 9a extends inward from the lower clamping piece 9b and is bent into a predetermined shape. A bent piece 16 is formed which is pressed by the disk. A needle material 18 is fixedly protruding downward from the protruding piece 13a of the abutment part 13 of the clip 9 with nuts 17, 17, and the protruding piece 1
A needle receiving pad 19 made of elastic material such as rubber is attached and fixed to the upper surface of the protrusion 13b facing the protrusion 3a.

20 is a turn portion 21a of each chain 1, 1;
This is a clip opening/closing means provided at 21b. This clip opening/closing means 20 includes a rotary disk 23 having a lower surface 22 formed in an inverted conical shape with a predetermined inclination angle on a bulge 3a formed on the upper surface of each of the chain wheels 3, 3 to a predetermined thickness. Spacer 2
The rotary disc 2 is screwed and fixed concentrically with each chain wheel 3 with bolts 25 and 26 through the
3 rotates synchronously with the chain wheel 3,
The pressing surface 2 has an inverted conical shape when the clip 9 is opened and closed.
The entire clip 9 sneaks under the pressing surface 22.
The bent piece 16 of the upper holding piece 9a of the clip 9
The clip 9 is opened and closed by pressing and releasing the button.

Therefore, when the sheet 10 is to be transferred in the direction of the arrow as shown in FIG. The chains 1, 1 are rotated synchronously in the direction of the arrows to intermittently move the chains 1, 1 in a circular manner. Then, the clip 9 fixed to each chain 1, 1 is moved to the turn portion 21a as the chains 1, 1 move intermittently, and the clip 9 is integrated with the chain wheel 3 as shown in FIG. When you sneak under the rotating rotating disc 23, the pressing surface 22 of the rotating disc 23 is formed in an inverted conical shape, so the clip 9
The top portion 16a of the bent piece 16 of the upper holding piece 9a begins to abut against the pressing surface 22 at the expanded position a. When the clip 9 further enters under the rotating disk 23, the bent piece 16 of the clip 9 is gradually pressed by the pressing surface 22 having an inverted conical shape, and as a result, the upper holding piece 9a uses the pin 11 as a fulcrum. As the clip 9 rotates, the tip abutting portion 13 of the clip 9 gradually opens.
The top portion 16b is pressed by the pressing surface 22 and its expansion amount becomes maximum at position b. When the clip 9, which is gradually expanding in this way, reaches position b, the rotating disk 23 is rotating in synchronization with the chain wheel 3, so the clip 9 remains open and becomes integral with the rotating disk 23. and move. Then, when the clip 9 rotates approximately half a turn and passes the position C, the clip 9 is pressed by the pressing surface 22 of the rotary disk 23.
The pressure of the upper clamping piece 9a on the bent piece 16 is gradually released, and the upper clamping piece 9a rotates in the closing direction about the pin 11 as a fulcrum by the spring force of the spring 12, and when it reaches the closing position d, it protrudes. Piece 13a
The needle material 18 attached to the receiving pad 19 is inserted into the receiving pad 19. The clip 9 closed in this way is connected to the straight running part 1.
After moving a and 1a, the turn portion 21b is reached.
When the clip 9 sneaks under the rotating disk 23 of the turn portion 21b, the bent piece 16 of the upper holding piece 9a of the clip 9 presses against the conical pressing surface of the rotating disk 23, as in the turn portion 21a.
2, the clip 9 gradually opens, and when the amount of expansion reaches its maximum, the clip 9 gradually closes after approximately half a turn while maintaining the open state, and when it reaches a predetermined position, the clip 9 is completely closed. The clip 9 thus closed reaches the turn portion 21a again as each chain 1, 1 moves in an intermittent circulation, and repeats the same operation.

Then, on the turn portion 21a side, the clip 9 starts to expand at the expanded position a, which is substantially opposite to the conveying path of the sheet 10, so that the fed sheet 1
The edge of the clip 9 passes between the protrusions 9a and 9b of the clip 9, does not interfere with the conveyance of the sheet 10, and when the clip 9 reaches the closing position d, the clip 9
is securely closed by the spring force of the spring 12, the needle 18 passes through the edge of the sheet 10 and is inserted into the pad 19, and the edge of the sheet is crimped and clamped between the nut 17 and the pad 19. In particular, the clamping piece 9 of the clip 9
Since the clips a and 9b rotate around the pin 11 to open and close, the amount of expansion of the clip 9 is extremely large. Moreover, since the clip 9 is closed by the spring force of the spring 12, even if the sheet 10 is thick, the needle material 18 can easily penetrate the edge of the sheet 10 and clamp it by pressure. Therefore, even when molding with a mold, for example, the clip 9 can be removed from the edge of the sheet 10.
It will never come off. When the predetermined shaping is completed, the sheet 10 is sent to the turn portion 21b side, and by the action of the rotating disk 23, the crimp clamping by the needle material 18 at the edge of the sheet is released, and the sheet 10 is sequentially sent to the process.

As explained above, the present invention includes a pair of endless chains that have linear running parts, move in the horizontal direction, and are arranged so that the linear running parts are parallel to each other; a lower clamping piece, an upper clamping piece rotatably provided on the lower clamping piece, a spring that presses one end of the upper clamping piece against an opposite end of the lower clamping piece, and an abutting portion of the upper and lower clamping pieces. A clip for holding the edge of the sheet is made up of a needle provided on each of the needles and a pad for receiving the needle, and a holding piece of the clip is fixed to the top surface of the chain wheel on which the endless chain is wrapped around. a clip opening/closing disc having an inverted conical pressing surface for opening against the elasticity of the clip, and a large number of sheet edge holding clips are fixed to the endless chain; One end of the upper clamping piece of the end clamping clip comes into contact with the pressing surface of the clip opening/closing disc provided at the turn part, so any sheet can be used regardless of the thickness of the sheet. The edge ends can be crimped and clamped without any special treatment, and the crimping and clamping force can always be kept substantially constant. In addition, since the seat is configured to be held by clips fixed to the chain, the frictional force generated when the chain is driven is extremely small, making it possible to use a small motor with low driving force and reducing wear on parts. Durability can be improved and costs can be reduced. Furthermore, since the chain moves horizontally, the chain on its way back will not be heated by a heating device or the like. Therefore, the circulating distance of the chain can be minimized, the length of the chain can be significantly shortened compared to conventional devices, the number of parts can be reduced, and the manufacturing cost can be extremely reduced.
Oil or dust attached to the chain does not fall onto the seat, and the conventional inconveniences can be solved, and the practical effect is extremely large.

Additional Relationships The present invention is based on the main parts of the matters essential to the structure of the invention related to Patent No. 1431200 (Japanese Patent Publication No. 62-21701). , are inventions to achieve the same purpose.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view of the device of the present invention, FIG. 2 is a partially enlarged plan view of FIG. 1, FIG. 3 is a front view with a partially omitted cross section, and FIG. FIG. 5 is an explanatory cross-sectional view of a main part showing a state in which a clip is attached to a chain. 1, 1... endless chain, 3, 3... chain, 9... clip, 9a... clamping piece, 10...
Sheet, 13...Tip abutting portion, 18...Needle material, 1
9... Receiving pad, 20... Clip opening/closing means, 21a, 21b... Turn portion.

Claims (1)

[Scope of Claims] 1. A pair of endless chains having linear running parts, movable in the horizontal direction, and arranged so that the linear running parts are parallel to each other, and a lower part fixed to the upper surface of the chains. clamping piece,
An upper clamping piece rotatably provided on the lower clamping piece, a spring that presses one end of the upper clamping piece against the opposite end of the lower clamping piece, and an abutting portion of the upper and lower clamping pieces are provided, respectively. A clip for holding the edge of the sheet is made up of a needle material and a pad for receiving the needle material, and is fixed to the top surface of the chain wheel on which the endless chain is wrapped around, and the holding piece of the clip is held against the elasticity of the spring. The clip opening/closing disk has an inverted conical pressing surface for opening the sheet and has a larger diameter than the chain wheel, and a large number of sheet edge holding clips are fixed to the endless chain. At the same time, the entire clip goes under the pressing surface of the clip opening/closing disc, and one end of the upper clamping piece of the sheet edge clamping clip
1. A sheet transfer device characterized in that the device comes into contact with a pressing surface of a clip opening/closing disk provided at a turn portion.