JPH0418968Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a conveying device that can grip mass-produced products, such as plastic bottles, and transport them freely to a desired location.

BACKGROUND OF THE INVENTION Conventionally, there are various conveyance devices that utilize endless chains, and among these, many have been used, for example, those equipped with a conveyed object holding device on the outer periphery of the endless chain. Specifically, when transporting an object using an endless chain, an attachment is provided on the outer side of the endless chain, and a clamping device for holding the object is attached to this attachment. In addition, it was equipped with a transfer device for transferring the endless chain, an opening device for releasing the clamped conveyed object at a desired location, and the like. Therefore, in most conveying devices using an endless chain, it is necessary to equip the chain with an attachment, a conveyed object holding means, a conveying means, an opening means, etc. as independent devices in addition to the endless chain.
Therefore, a conveyance device using such an endless chain has a drawback that it has a complicated structure, requires many parts in manufacturing, and increases cost.

Therefore, some conveyance devices have been devised as shown in FIGS. 5 and 6. This conveyance device is equipped with L-shaped link plates 52 at regular intervals in the link plate 51 portion of a normal roller chain 50. One end of an attachment 53 is joined to the side surface of this L-shaped link plate 52 by a method such as welding, and a clamping member 54 is bonded to both sides of this attachment 53 with an adhesive or the like. The conveying device using this endless chain is rotated in an elliptical manner by, for example, a sprocket, and the attachment 53 that holds the conveyed object 55 is always attached to the outer circumferential direction of the endless chain that circulates in an elliptical manner. The sprocket is usually provided with an inlet side sprocket (not shown) into which the conveyed object 55 is carried and an open side sprocket (not shown) through which the conveyed object 55 is opened, and an endless chain is placed on the inlet side sprocket. When it reaches there, the tips of each attachment 53, one end of which is joined to each L-shaped link plate 52, open into a fan shape. A conveyed object 55 is transported by a belt conveyor or the like between the fan-shaped attachments 53.
is inserted. After the conveyed object 55 is inserted,
The endless chain passes over the loading side sprocket,
It becomes straight again. At this time, attachment 5
Since the tips of the attachments 3 are closed, the attachments 53 are lined up in parallel, and the conveyed object 55 is securely clamped by the clamping members 54. In this state, the transported object 5
5 is transported to the destination. Then, the transported object 5
When each attachment 53 holding the
Since the tip of the transport object 55 is opened in a fan-like manner as described above, the object 55 to be transported is released from the gripping member 54 and falls at the destination, completing the transport.

Furthermore, a conveying device in which an attachment and a link are integrated is also known (see Japanese Patent Application Laid-open No. 48512/1983).

However, in a conventional conveying device using an endless chain, all the pins 56 and rollers 57 of the roller chain 50 are fitted perpendicularly to the link plate 51 and the L-shaped link plate 52, so the roller chain 50 is Since the direction can only be changed in one direction (either horizontally or vertically) and cannot be changed freely vertically or horizontally, a single endless chain is used to move the transported object 55 to the desired location. It was difficult to transport. Furthermore, in a conveying device using a cross chain such as that shown in Japanese Utility Model Publication No. 33-10311, it is difficult to attach a plate-shaped or rod-shaped attachment to the link plate.
Although the conveyed object 55 was conveyed by hanging it with a hanging fitting or the like, there was a risk that it would fall during the conveyance, such as when being conveyed at high speed.

Problems to be Solved by the Invention This invention was made by focusing on the problems of the conventional art, and is a simple method that can freely and reliably hold and transport the object 55 to a desired location. The purpose of this invention is to provide a conveyance device with a unique structure.

Means for Solving the Problem In order to achieve this object, the conveying device of the present invention includes sprockets 2a and 2b on the carry-in side and the opening side, which rotate in a horizontal plane, respectively, and a plurality of crosses having substantially the same shape. Chain link plate 1
are alternately horizontal and vertical pins 1a, 1b,
An endless cross chain for conveyance that is bendably connected at 1c and moves under tension between the sprockets on the carry-in side and the open side, and a fixed horizontal pin that connects the link plates 1 to each other. It is characterized by consisting of clamping member holding pins inserted at intervals, a bracket attached to the outer periphery of the mounting portion of the clamping member holding pin, and clamping members fixed to both sides of the bracket via mounting plates. There is.

Function of the device The function of this device, which has the above structure, will be explained.

As shown in FIGS. 2 and 3, the conveying device according to this invention has pins arranged horizontally and vertically.
Since the holding pins a, 1b, 1c and the holding member holding pins 4 are alternately fitted into the link plate 1, rotation in the horizontal direction is performed around the pins 1a and 1c (directions of arrows A and B in Fig. 2). . Moreover, the rotation in the vertical direction is performed around the clamping member holding pin 4 and pin 1b. (Arrows C and D in Figure 3). Therefore, by being supported by the sprocket, the conveying device according to this invention can freely change direction in either the horizontal direction or the vertical direction.

As shown in FIG. 1, when the conveying device according to this invention is transferred onto the carry-in side sprocket 2a, in the embodiment, the direction of the chain is bent 90 degrees to the left by the carry-in side sprocket 2a. At this time, each link is bent around the vertical pins 1a and 1c, and the horizontal pin 1b and the holding member holding pin 4 are integrally connected to the adjacent links (bent at the horizontal pin position). to move without) Therefore, the tips of the holding pins 4 on the carry-in side sprocket 2a are spread out almost evenly in a fan shape, and there is a gap between the holding pins 4 that is large enough to allow the object 6 to be carried in. A conveyed object 6 transported by a belt conveyor or the like is carried into this gap. The holding member 5 holding the conveyed object 6 passes through the carry-in side sprocket 2a,
When the chain is in a straight state, the tips of the holding pins 4 of the holding members 4 are sequentially and evenly closed, the holding pins 4 of the holding members 4 become parallel to each other, and the object 6 to be conveyed is securely held in the gap between the holding members 5. . The conveyed object 6 is conveyed to a desired destination in a pinched state. At the destination, as shown in FIG. 4, it is again bent 90 degrees to the left by the open side sprocket 2b. Then, as in the case of carrying in, the tip of each clamping member holding pin 4 spreads out in a fan shape on the open side sprocket 2b, and the conveyed object 6 is released from the clamping and falls naturally. In addition, as shown in FIG. 4, the direction change sprockets 2c, 2
Although the tip of each clamping member holding pin 4 spreads out in a fan-like manner on the position d, the object 6 does not fall because the contact plate 10 contacts and supports the bottom of the object 6 at this location. Further, a guide member 11 is provided to prevent the conveyed object 6 from jumping out from the holding member 5 when the direction of the chain is changed. After passing through the opening side sprocket 2b and releasing the conveyed object 6, the conveying device is transferred in an empty state, and the conveyed object 6 is again held at the original position of the carry-in side sprocket 2a.

Examples of ideas Next, this invention will be explained based on the drawings.

1 to 4 are drawings showing an embodiment of this invention. In the figure, 1 is a link plate,
This link plate 1 is alternately connected by pins 1a and 1c that govern rotation in the horizontal direction, and clamping member holding pins 4 and pins 1b that govern rotation in the vertical direction. A roller 3 is rotatably provided on the outer periphery of each of these pins, and the conveying device is transported by engaging the teeth of each sprocket with this roller 3. The interval at which the holding pins 4 are inserted into the link plate 1 can be arbitrarily set depending on the size of the object 6 to be transported. Further, a bracket 7 is fixed to the mounting portion 4a projecting outward from the link plate 1 with screws 8, and mounting plates 7a are fixed to both sides of the bracket 7 by a method such as welding. The holding member 5 is bonded to the mounting plate 7a with an adhesive or the like. In the embodiment, the transported object 6 is a plastic bottle,
Since the bottle is a soft product, flexible materials such as polyurethane foam are used to prevent damage to the surface of the plastic bottle.

FIG. 4 shows that using the conveying device according to this invention,
FIG. 2 is a plan view showing an example of transporting plastic bottles. 2a is a carry-in side sprocket, and 2b is an open side sprocket. In addition, direction change sprockets 2c and 2d are provided at the location where the direction of the conveying device is to be changed. A plate 10 is provided. Furthermore, a guide member 11 is provided to prevent the transported object 6 from protruding outward when changing direction. Further, support sprockets 2e, 2f, 2g, 2h, 2i, 2 for supporting this conveyance device from below are provided.
j is rotatably provided at the tip of the fixed bracket 9. The conveying device according to this invention uses, for example, an electric motor (not shown) as a power source, and this power is transmitted to each sprocket via a reduction gear (not shown).

Effects of the invention As explained above, according to this invention, a plurality of link plates are connected alternately with horizontal and vertical pins so that they can be bent freely, so that objects to be transported can be moved to desired locations. Can be transported freely. Furthermore, since the link itself is not directly welded and instead of a pin, a holding pin for holding the holding member is inserted, the structure is simple, and the number of parts required for manufacturing is small, making it possible to manufacture at low cost. Further, this conveying device has the advantage that mass-produced products made of soft materials can be reliably held and conveyed at high speed.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the conveying device according to this invention. Figure 1 is a plan view of the conveyed object being fitted between the attachments, and Figure 2 is a plan view of this device. FIG. 3 is a partially enlarged plan view of the conveying device of the invention, FIG. 3 is a plan view of FIG. 2, and FIG. 4 is a plan view of a state in which an object is being conveyed. Figures 5 and 6
The figures are drawings showing a conventional conveying device, with FIG. 5 being a plan view and FIG. 6 being a front view of FIG. 5. DESCRIPTION OF SYMBOLS 1... Link plate, 4... Holding member holding pin, 4a... Mounting part, 5... Holding member, 6... Object to be transported, 7a... Mounting plate.

Claims (1)

[Claims for Utility Model Registration] Sprockets on the loading side and the opening side that rotate in a horizontal plane, and a plurality of cross-chain link plates having substantially the same shape are alternately bendable with horizontal and vertical pins. An endless conveyance cross chain that is connected and moves under tension between the sprockets on the carry-in side and the open side, and clamps inserted at regular intervals in place of the horizontal pins that connect the link plates. A conveying device comprising: a member holding pin; a bracket attached to the outer periphery of a mounting portion of the holding pin; and holding members fixed to both sides of the bracket via mounting plates.