JPH0110876Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat generating cable mat manufacturing apparatus that forms a heat generating cable into a meandering shape and connects its parallel portions with a connecting tape to form a sash-like shape.

In conventional devices of this kind, a heating cable is formed into a meandering shape, and connecting tapes are applied to at least two points in the width direction from both the upper and lower sides, and the connecting tapes are compressed with a pressure roller to connect the connecting tapes to each other. The meandering parallel sections of the heating cable are connected by gluing. In this case, if the meandering width of the heating cable changes, the interval between adjacent connecting tapes in the width direction must also be changed. Accordingly, the mutual spacing between the pressure rollers that press the connection tape must also be changed. Conventionally, there has been a drawback that changing the mutual spacing between the pressure rollers is very time-consuming.

Further, with the conventional pressure roller, it is difficult to bond the connecting tapes connecting the front and rear of the heating cable to each other, and the heating cable tends to move when an external force is applied.

Furthermore, in the conventional case, if the pressure roller is damaged or worn out, the entire pressure roller must be replaced, which has the disadvantage of increasing maintenance costs.

The purpose of this invention is to produce a heating cable mat that can easily change the pressurizing position, ensure good mutual adhesion of connecting tapes at the front and rear of the heating cable, and reduce maintenance costs. is to provide.

Hereinafter, specific examples of the present invention will be explained in detail with reference to the drawings. As shown in Figures 1 to 5 A and B,
The heating cable 1 is supplied from a supply drum 2 to a straightening roll stand 3, where the curling of the supply drum 2 is straightened, and then sent to a dancer roll stand 4. A tension of about 10 to 20 kg is applied to the heat generating cable 1 by the dancer roll stand 4 to produce the heat generating cable mat manufacturing device 5 of the present invention.
sent to.

This heating cable mat manufacturing device 5 includes a lower drum 6 and an upper drum 7 that are rotationally driven by a drive source (not shown). A plurality of pieces 8 are alternately protruded from the outer circumference of the lower drum 6, and
Three pressure rings 9 are fixed to the outer periphery at intervals in the axial direction. Each pressure ring 9 is made of a rubber elastic body such as rubber, and a heating cable 1 is attached to the outer periphery of the pressure ring 9.
Grooves 10 for fitting are provided at predetermined intervals. The depth and width of these grooves 10 are selected to be slightly larger than the diameter of the heating cable 1. Each pressure ring 9 is fixed to the upper drum 7 with screws or the like.
These upper drum 7 and pressing ring 9 constitute a connecting tape pressing means to be described later. In addition, the lower drum 6 and the pressure means can connect the upper and lower connecting tapes 1
A clamping means for adhering 4 and 15 to each other is configured. Furthermore, this heating cable mat manufacturing apparatus 5 has a traverser 11 for hooking the heating cable 1 to each piece 8 on both sides of the lower drum 6.

The heat generating cable 1 let out from the dancer roll stand 4 is fed into the traverser 11 of this device 5, and the traverser 11 connects it to the lower drum 6.
The pieces are hooked one after another to each piece 8 on the left and right of the frame, and are formed into a meandering shape.

At this time, an upper tape supply 1 is provided between the upper drum 7 and the lower drum 6 corresponding to each pressure ring 9.
2 and the lower tape supply 13 to the connecting tape 1
4 and 15 are respectively supplied so as to sandwich the meandering heating cable 1 from above and below. An adhesive is applied to the lower surface of the upper connecting tape 14. The upper and lower connecting tapes 14 and 15 are sandwiched between the pressure ring 9 and the lower drum 6, and are pressed and adhered to each other. At this time, the pressure ring 9 is made of a rubber elastic body, and the groove 1 formed in the pressure ring 9 is
0 is selected to have a depth and width slightly larger than the diameter of the heating cable 1, so the connecting tape 14 enters the groove 10 together with the heating cable 1, is curved along the outer circumference of the heating cable 1, and is bent under pressure. As the rubber elastic body deforms, it is integrally bonded to the outer periphery of the heat generating cable 1 and the connecting tapes 15 at the front and rear of the heat generating cable 1.

In this way, a blind-shaped heat generating cable mat 16 is obtained in which the meandering heat generating cables 1 are connected by connecting tapes 14 and 15. This heating cable mat 16 is sent out as both drums 6 and 7 rotate, passes through a stand 17, and is successively wound onto a take-up drum 18.

In such a device 5, the heating cable mat 1
When changing the width of the wheel 6, the distance between the left and right pieces 8 is changed, and the mutual distance between the pressurizing wheels 9 is also changed. To change the position of the pressure wheel 9, move the pressure wheel 9 to the upper drum 7.
This can be easily done by removing the screws etc. that are fixed to the upper drum 7 and sliding the free pressurizing ring 9 around the outer periphery of the upper drum 7. The pressure ring 9 whose position has been set is again fixed to the upper drum 7 with screws or the like.

In addition, if the pressure ring 9 is damaged and needs to be replaced, or if the thickness of the heat generating cable 1 changes and the width or depth of the groove 10 needs to be changed, etc. The pressurizing ring 9 can be easily replaced with a new pressurizing ring 9 or a pressurizing ring 9 provided with the required groove 10 by following the procedure described above.

Note that the pressure ring 9 is not limited to an endless shape, and may be cut at any point in the circumferential direction. According to such a pressurizing ring 9, the mounting work on the upper drum 7 can be easily performed without removing the upper drum 7.

As explained above, the heating cable mat manufacturing apparatus according to the present invention uses a lower drum and a pressure means as a clamping means for adhering the upper and lower connecting tapes to each other, and applies pressure to the outer periphery of the upper drum as the pressure means. A pressure ring is used, and this pressure ring is made of a rubber elastic material, and a groove is provided in the pressure ring to fit the heating cable and the upper connecting tape together, so that the pressure can be reduced. In the groove of the ring, the upper connecting tape is tightened around the heating cable by the pressure deformation of the pressurizing ring, and the upper and lower connecting tapes can be well bonded at the heating cable area and in front and behind it, and the heating is reduced. Cable movement can be prevented. Moreover, since each pressurizing ring is attached to the outer periphery of the upper drum, it is possible to easily cope with changes in the width of the heat generating cable mat by shifting the position of the pressurizing ring with respect to the drum axis direction.
Furthermore, according to the present invention, when the pressurizing means is damaged or worn out, when changing the meandering pitch of the heating cable, or when changing the thickness of the heating cable, only the pressing ring can be replaced. This makes it easy to replace, and reduces maintenance costs in the event of damage or wear.

[Brief explanation of drawings]

1 and 2 are a plan view and a front view showing an embodiment of the device according to the present invention, and FIGS. 3A and 3B are side views showing an embodiment of the pressurized feeding means that constitutes the main part of the present invention. Figures 4A, B, and C are explanatory diagrams showing the pressure bonding process using the pressure feeding means, and Figures 5A,
B is a plan view and an enlarged side view of a heating cable mat manufactured by the apparatus of the present invention. DESCRIPTION OF SYMBOLS 1... Heat generating cable, 5... Heat generating cable mat manufacturing device, 6... Lower drum, 7... Upper drum, 8... Piece, 9... Pressure ring, 10... Groove, 11
...Traversa, 14,15...Connecting tape.

Claims (1)

[Scope of utility model registration request] A heating cable is hooked to each piece on the outer periphery of the lower drum using a traverser and formed into a meandering state, and connecting tape is applied to the upper and lower surfaces of this meandering heating cable, and the upper surface of the lower drum is pressed by a pressure means. In the heating cable mat manufacturing apparatus for bonding the upper and lower connecting tapes to each other to connect each part of the meandering heating cable to obtain a heating cable mat, a clamping means for bonding the upper and lower connecting tapes to each other. The lower drum and the pressure means are used, and the pressure means includes an upper drum which is disposed above the lower drum and is driven to rotate together with the lower drum, and an upper drum formed of a rubber elastic body and arranged on the outer periphery. A heating cable mat manufacturing apparatus comprising: a pressure ring having grooves at intervals and detachably fixed to the outer periphery of the upper drum at the insertion position of the connecting tape.