JPH056297Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention smoothly takes out a resin sheet that is held in a horizontal state by pins provided on an endless roller chain of a chain conveyor and is held on both sides by the pins. The present invention relates to a device suitable for.

(Prior art and problems) When molding a resin product by heating and softening a heat-softening resin sheet and bringing it into close contact with the mold surface, the resin sheet must be placed horizontally and transported between heating devices. The resin sheet is conveyed while being held by pins provided on the roller chain of the chain conveyor on both sides. To extract the resin sheet from the pin, a drum having an outer diameter larger than the diameter of the semicircular locus drawn by the tip of the pin by rotation of the chain foil is fixed concentrically to the inner surface of the chain foil, and the drum is fixed at the chain foil point. By creating a relative speed difference between the tip of the pin and the outer periphery of the drum, the resin sheet is pushed up with the drum and pulled out from the pin. However, when the resin sheet is particularly soft, there is a problem that the pushing-up action of the drum causes the entire opposite side portions of the resin sheet to be moved to both sides, making it difficult to smoothly extract the resin sheet.

(Purpose of the invention) The invention has been made to solve the above problems.

(Structure of the invention) Hereinafter, the structure of the invention will be described in detail based on drawings of embodiments. Reference numerals 1 and 1 denote support members located at the discharge end of a chain conveyor that holds the resin sheet S on both sides and conveys it in a horizontal state, and are arranged at a required interval in the left-right direction; As shown in FIG. 2, the guide rail 3 is slidably attached to the guide rail 3 via engaging members 2, 2 in the left-right direction (front-back direction in FIG. 2). Sliding members 4, 4 are attached to the supporting members 1, 1 so as to be slidable in the front-rear direction, and the supporting member 1 The tips of adjustment bolts 6, 6 threaded through the brackets 5, 5 fixed to the sliding members 4, 4 are connected to the brackets 5, 5 fixed to the sliding members 4, 4.
is adapted to be adjusted in position in the front-rear direction by adjusting bolts 6, 6. Moreover, the sliding member 4,
Support shafts 7, 7 oriented in the left-right direction are fitted into the 4 so as to protrude inwardly, and the tips of the support shafts 7, 7 are fitted with
Chain foils 8, 8 are rotatably mounted around the ring. Further, a pair of endless roller chains 9 that move in the front and back direction are hung on the chain wheels 8, 8, and the other end of the endless roller chain 9 is hung on a driving chain wheel (not shown) equipped with a drive device. ing. Moreover, a large number of pins 10, 10 with sharp tips are fixed to the inside of each series of the endless roller chain 9 so as to protrude outward. Furthermore, one end of the drums 11, 11 is fixed concentrically to the inner surface of the chain foils 8, 8, and the drum 1
The outer diameters of the pins 1 and 11 are larger than the diameter of the semicircular locus that the tips of the pins 10 and 10 draw as the chain wheels 8 and 8 rotate. Further, holding members 12, 12 are fixed to the upper surfaces of the supporting members 1, 1, and stepped elongated holes 13, 13 extending in the vertical direction are bored through the holding members 12, 12 in the left-right direction. has been done. Stepped support shafts 14, 14 extending to the vicinity of the base of the drums 11, 11 are fitted into the stepped elongated holes 13, 13 so as to be movable up and down, and a presser roller 15 is fitted at the tips of the stepped support shafts 14, 14. , 15 are rotatably mounted on a ring, and each presser roller 15 can press the outer peripheral surface of the drum 11 by its own weight and the weight of the stepped support shaft 14. 16 is a presser member fixed to the support member 1, and 17 is a presser member fixed to the holding member 12.

(Operation of the device) Next, the operation of the device configured as described above will be explained. A driving device (not shown) is driven to rotate a driving chain wheel (not shown), and the endless roller chain 9 is moved rearward. Then, the resin sheet S is held at both sides by the pins 10, 10 of the endless roller chain 9, and is moved backward, and is transferred to the drum 1 together with the chain foils 8, 8.
1 and 11 are rotated counterclockwise in FIG. Further, as the drums 11, 11 rotate, the presser rolls 15, 15 are rotated clockwise. In this way, when the resin sheet S is moved backward, its leading edge is connected to the drums 11, 11 and the presser rolls 15, 1.
The resin sheet S enters between the presser roll 1 and the presser roll 1.
5 and 15, it will be pressed downward. Then, when the resin sheet S moves further backward, the outer diameter of the drums 11, 11 is larger than the diameter of the semicircular trajectory drawn by the tips of the pins 10, 10 by the rotation of the chain wheel 8, so the resin sheet S moves further backward. The chain foils 8, 8 are pushed up toward the outside by the drums 11, 11. In this case, the resin sheet S is
Immediately before being pushed up by the drums 11, 11, the presser rolls 15, 15 and the drums 11, 1 are located near both sides of the drums 11, 11.
Since the drums 11 and 1 are momentarily gripped, the drums 11 and 1
1, the resin sheet S can be smoothly pulled out from the pins 10, 10. The above operations are performed continuously, and the resin sheet S is automatically and reliably extracted from the pins 10, 10.

In the above embodiment, the pressing force of the presser roller 15 is obtained by the weight of the presser roller 15 itself and the stepped support shaft 14, but it may be further biased by a compression coil spring.

(Effect of the invention) As is clear from the above explanation, according to the invention, when the resin sheet S inserted into the pins 10, 10 of the endless roller chain 9 is pushed up by the drums 11, 11, the resin sheet S is Presser roller 15
Since the resin sheet S is instantly gripped by the drum 11 and the drum 11, the resin sheet S is reliably pulled out from the pin 10 by the drum 11, which has excellent practical effects such as being able to solve the problems of the conventional model of this type. .

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a partially sectional front view, and FIG. 2 is a left side view of FIG. 1. 8... Chain foil, 9... Endless roller chain, 10... Pin, 11... Drum, 15... Presser roller.

Claims (1)

[Scope of utility model registration request] The endless roller chain 9 is placed at the discharge end of a chain conveyor that conveys the resin sheet S in the front-rear direction by inserting both side portions of the resin sheet S into a large number of pins 10, 10 fixed to the endless roller chain 9 having a pair structure.
Chain foils 8, 8 spanning the chain wheels 8, 8 are rotatably supported and arranged at a required interval in the left-right direction, and the pins 10, 1 are attached to the inner surfaces of the chain foils 8, 8.
Drums 11, 11 whose tips have an outer diameter larger than the diameter of the semicircular locus drawn by the rotation of the chain wheels 8, 8 are fixed concentrically to the chain wheels 8, 8, and The resin sheet take-out device is characterized in that press rollers 15, 15 which can press the outer peripheral surfaces of the drums 11, 11 and are rotatably supported are disposed in a vertically movable manner.