JPH0752088Y2 - Conveyor belt structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a belt structure of a conveyor in which a plurality of transport surfaces for placing and transporting a work are formed by rods arranged in a row.

(Prior Art) Conventionally, as a belt structure of this type of conveyor, there is one in which a large number of rods are attached and supported between a pair of endless chains that are rotatably driven.

With the belt structure, for example, as shown in FIG.
In an automatic packaging machine in which the horizontal sealer 10 is arranged between both the 40 and the discharge conveyor 41, when it is used as a belt for the transfer conveyor 42 at the installation position of the horizontal sealer 10, between the chains 30, 30 The position of the rods 6 mounted on the packaging machine can be variously changed to appropriately form a space H for allowing the sealer body 13 of the lateral sealer 10 of the packaging machine to project from the lower side of the conveyor transport surface to the upper side thereof. It has the advantage of excellent flexibility of use. Further, conventionally, a chain has been used as a rod supporting means. However, not only can the feed pitch be accurately adjusted, but the chain can be easily connected and disconnected, and the chain can be easily replaced. Because.

(Problems to be solved by the invention) However, in the above-mentioned conventional one, since the rod is attached to the chain, when the operating speed is increased, noise caused by the meshing of the chain and the sprocket is generated. Very large and unsuitable for high speed driving. In particular, this noise increases as the diameter of the sprocket becomes smaller,
In the case where the sprocket with a small diameter is used as a transfer conveyor, the difficulty is more remarkable.

Therefore, as a measure for solving the above-mentioned difficulties, the present inventor has conceived to eliminate the noise by using a timing belt instead of the conventional chain.

However, in the conventional timing belts, since both ends of the belt-like belt are firmly pressure-bonded to each other, the belts are endlessly connected and formed in advance. The following problems occur.

That is, referring to FIG. 12, when the endless timing belt 1e is provided so as to surround the support shaft 11 of the lateral sealer 10 of the packaging machine as shown in FIG. The endless timing belt 1e cannot be removed if it exists. If the belt 1e is cut, the subsequent connection is very difficult, and such means cannot be applied in practice. Therefore, in order to remove the belt 1e, it becomes necessary to remove the support shaft 11 of the horizontal sealer 10 in advance by a large-scale work. As a result, with the above, the replacement work of the timing belt 1e is very troublesome, and a fatal problem occurs in the workability.

Thus, if a chain that can be easily separated and connected is used as the rod supporting means, the workability of attachment / detachment is excellent, but it has drawbacks such as noise, while the use of a timing belt eliminates noise, but Attachment / detachment work was difficult.

Therefore, in the present invention, when the timing belt is used in order to eliminate the noise during the operation of the conveyor, even if the timing belt is provided in a state of surrounding other devices, the detachment and replacement thereof is required. The purpose is to make the work easy.

(Means for Solving the Problems) In view of the fact that all of the conventional timing belts have been endlessly formed and used in the present invention, a non-endless timing belt is used as the belt. An object of the present invention is to solve the above-mentioned conventional problems by making it possible to connect endlessly using a rod that is attached and supported.

That is, first, the present invention provides a pair of timing belts 1,
A belt structure of a conveyor in which a plurality of rods 6 mounted and supported between the timing belts 1 and 1 are provided at predetermined intervals in the longitudinal direction of the timing belts 1 and 1, and each of the timing belts 1 has both ends. Two endless belts 1a, 1b, in which the portions 15a, 15a, 15b, 15b are separated from each other, are formed by being overlapped in the width direction thereof, and both end portions 15a, 15 of the belts 1a, 1b are formed.
Separation positions M, N of a, 15b, 15b are provided so as to be displaced in the longitudinal direction of the timing belts 1, 1, and furthermore, the belts 1a, 1
b is such that the rods 6 ... Straddle both the belts 1a, 1b at least at both ends 15a, 15a, 15b, 15b so that the separating positions M, N are not located between the same rods 6. It is a belt structure of a conveyor that is endlessly connected and held by being detachably inserted in a closed state.

As a second configuration other than the above, the present invention is a belt structure of a conveyor in which a plurality of rods 6 are mounted and supported between a pair of timing belts 1A, 1A. The end portions 15c, 15d are formed in a non-endless shape in which the end portions 15c, 15d are formed in a separated state, and the timing belt 1A has its both end portions 15c, 15d overlapped in the width direction and at least the end portions 15c, 15d The rod 6 has a belt structure of a conveyor in which the rod 6 is detachably inserted in a state of straddling both end portions 15c and 15d so as to be endlessly connected and held.

Further, in the present invention according to the above-mentioned second configuration, one end portion 15c of the timing belt 1A is formed in a narrow width shape in which a portion outside the widthwise central position of the timing belt 1A is cut away. The belt structure of the conveyor is configured such that the end portion 15d on the other side is formed in a narrow width shape in which a portion inside the timing belt 1A in the width direction is notched and removed.

Further, according to the present invention, in any one of the above configurations, each timing belt has a hole portion for inserting the end portion of the rod 6 so as to detachably support each rod 6 between the pair of timing belts. It is a belt structure of a conveyor provided at a plurality of locations.

(Operation) In the belt structure of the first configuration described above, the two non-endless belts 1a, 1b are superposed on each other at each end 15a, 15a, 15b, 15b of each belt 1a, 1b. Since the rod 6 is inserted across both the belts 1a and 1b, the two belts 1a and 1b are connected endlessly as one timing belt 1. Can be used in the same manner as a general endless timing belt.

Thus, in the structure of the timing belt 1,1, since the two belts 1a and 1b are connected endlessly through the rod 6, the rod 6 is connected to both end portions 15a of the belts 1a and 1b. 15
When the belts 1a, 1b are removed from the positions of a, 15b, 15b, both ends 15a, 15a, 15b, 15b of the belts 1a, 1b are disconnected. As a result, each timing belt 1 can be disassembled into an endless shape.

On the other hand, also in the belt structure of the second configuration, although the timing belts 1A, 1A are formed endlessly, the timing belts 1A, 1A have their respective end portions 15c, Since the rods 6 are inserted through both ends of the 15d position and connected endlessly, the timing belts 1A and 1A are also the same as the general endless timing belts as in the first configuration. Can be used Also, if a predetermined rod 6 for connecting both ends 15c, 15d of the timing belt 1A is pulled out, both ends 15a, 15d
The connection of 15b is released and the timing belt 1A can be disassembled into an endless shape.

Further, in the second configuration, the timing belt 1A has both ends 15c and 15d formed in a narrow width shape by cutting out from the central position to a predetermined state.
Both end portions 15c and 15d of 1A can be connected in a centered state.

In the first structure in which the two timing belts 1 are formed by overlapping the two belts 1a and 1b in the width direction, the belts 1a and 1b are not cut into a predetermined shape.
It is possible to connect b to the centered state.

Further, in each of the above-mentioned constitutions, in the means for attaching the rod 6 by inserting the end portion of the rod 6 into the hole provided in each timing belt, the attachment of each rod 6 can be performed very easily. Moreover, the mounting position of the rod 6 can be freely changed only by changing the insertion position into the hole.

(Example) Hereinafter, the Example of this invention is described.

[First Embodiment] In FIG. 1, reference numerals 1 and 1 denote a pair of left and right timing belts. Since both belts 1 and 1 may have the same structure, refer to FIGS. 2 and 3 for one timing belt 1. And explain.

Reference numerals 1a and 1b are two belts (timing belts) made of synthetic resin or synthetic rubber, etc., which compose one timing belt 1, and both end portions 15a, 15a, 15b, 15b are respectively formed in a non-endless shape. It is a thing. 2a ..., 2b ... are belts 1a, 1b
Protruding teeth for engagement, which are provided on the inner surface of the blade at a constant pitch. 3a
, 3b ... are convex portions projecting at a constant pitch along the longitudinal direction of the belts on the outer surface side of the belts 1a, 1b, and the convex portions 3a, 3b have holes 4a, 4b in the belt width direction. It is drilled so as to penetrate through. Incidentally, the protruding teeth 2a, 2b of the both belts 1a, 1b, the convex portions 3a, 3b
The size, pitch, etc. of each part such as are set to the same size. Therefore, two identical belts may be used as both the belts 1a and 1b.

The two belts 1a, 1b have their respective ends 15a, 15a, 15b, 1
5b are overlapped in the belt width direction in a state where they are formed in a substantially ring shape that is close to each other. M and N are separation positions formed between both ends 15a and 15a of the belts 1a and 1b and between 15b and 15b,
Both positions M and N are set in a stepped state in which the position is displaced in the longitudinal direction of the timing belts 1 and 1 by the dimension La.

6 ... are a plurality of rods for forming the conveying surface of the conveyor, and each end of these rods 6 ...
It is removably inserted while straddling the respective hole portions 4a, 4b of a, 1b. Reference numeral 7 is a snap ring for preventing the rod 6 from coming off.

The two belts 1a, 1b have their respective ends 15a, 15a, 15b, 1
The rods 6 ... Are connected endlessly by being inserted through the two belts 1a, 1b so that the separating positions M, N of 5b are not located between the same rods 6 ,. One timing belt 1 with two belts 1a and 1b
Are formed.

The above-mentioned configuration is, for example, a set of timing belts 1,1
4 is wound around the toothed pulleys 8, 8a, 8a attached to the drive shaft 9 and the driven shafts 9a, 9a and is circulated and used.

Thus, when such a conveyor is provided at the installation position of the sealer 10 of the packaging machine as shown in the figure, and is used in a state where it surrounds the support shaft 11, the conveyor is first a timing belt.
Since 1 and 1 are circulated, no significant noise is generated even at high speed operation. Further, since the protruding teeth 2a and 2b are aligned with each other, the meshing with the toothed pulley is appropriately performed. Further, although one timing belt 1 is composed of two belts 1a and 1b, since the belts 1a and 1b are overlapped in the width direction and are connected to each other, There is no inconvenience such as meandering during circular movement.

Next, when the timing belts 1 and 1 are replaced due to long-term use of the conveyor, first, the timing belts 1 are located at both ends 15a, 15a, 15b and 15b of the two belts 1a and 1b. The snap rings 7 of the plurality of rods 6 may be removed, and the rods 6 may be removed from the holes 4a and 4b.

As a result, the two belts 1a, 1b have their respective ends 15a, 1b
The mutual connection of 5a, 15b, 15b is released to form an endless shape.
Therefore, the pair of timing belts 1, 1 can be taken out of the horizontal sealer 10 without removing the support shaft 11 of the horizontal sealer 10. At this time, the rods 6 other than the rods having the connecting function of the both end portions 15a, 15a, 15b, 15b may be attached between the timing belts 1, 1. It is not necessary to remove all the rods 6.

Similarly, when the new timing belts 1 and 1 are mounted, both ends 15a, 15a, 15b,
If 15b remains separated in advance, both belts 1 and 1 can be arranged so as to surround the support shaft 11 without removing the support shaft 11 of the horizontal sealer 10. After that, each end 15a, 15a, 15
Since it suffices to insert several rods 6 at the positions of b and 15b for connection, the work can be easily performed.

Further, when the space H for projecting the sealer body 12 of the lateral sealer 10 upward is expanded or contracted, the mounting position of the rod 6 with respect to the timing belts 1, 1 may be changed. Can be easily performed by replacing both ends of the rod 6 with the holes 4a and 4b at different positions.

In the above embodiment, the two belts 1a and 1b constituting one timing belt 1 have the same structure, but the present invention is not limited to this. For example, two belts 1a, 1b
It does not matter if different width dimensions are used. Further, it is not always necessary to provide the protruding teeth 2a and 2b on both the belts 1a and 1b, and only one of the belts may be provided with the protruding teeth.

Further, between the two end portions 15a, 15a of the two belts 1a, 1b, 15b, 15b
Specific mutual dimensions of each separation position M, N between each belt 1
The specific number of rods 6 used for connecting a and 1b endlessly does not matter. In short, the rod 6 is attached to at least each end 15a, 15a, 15b, 15b of each belt 1a, 1b.
It suffices that the belt 1a, 1b is detachably inserted in a state of straddling both the belts 1a, 1b, and the belts 1a, 1b are endlessly connected and held. Therefore, design changes such as (a) and (b) in FIG. 5 can be freely made.

Second Embodiment Next, a second embodiment will be described. In FIG. 6, 1A and 1A are two-row timings in which a plurality of tooth-engaging projecting teeth 2 ... Are formed on the inner surface side at a constant pitch. Indicates a belt. Each timing belt 1A is formed such that both end portions 15c and 15d are separated as shown in FIGS. 7 and 8, and one end portion 15c side is notched and removed at a portion outside the center position A of the belt 1. Is formed into a narrow width having a width dimension of exactly 1/2 of the overall width L of the belt, and the other end 15d side is notched by removing the inner portion from the center position A by the same width as one end 1a. Formed in a narrow width.

Denoted at 3 are a plurality of protrusions provided on the outer surface of each timing belt 1 at a constant pitch, and each protrusion 3 has a through-hole-like hole 4 formed therein.
Are provided along the width direction of the belt. The holes 4 are also formed at both ends 15c, 15d of the narrow width of each timing belt 1 as holes 4c, 4d at a constant pitch. The holes 4c and 4d have essentially no difference from the holes 4 at other positions, but their width dimension is narrow corresponding to the belt width.

In this embodiment, both end portions 15 of each timing belt 1A are
The c and 15d are overlapped with each other along the width direction, and the end portion of the rod 6 is inserted across both of the hole portions 4c and 4d at the positions of the both end portions 15c and 15d to prevent slipping out. Snap ring 7
Is fastened. This allows each timing belt
Both ends 15c and 15d of 1A are connected to each other via a rod 6 to form an endless shape.

Also in the belt structure having the above-described structure, as in the first embodiment, it can be used in the same manner as a general timing belt as shown in FIG. Further, the timing belt 1A is one belt having both end portions 15c and 15d superposed on each other, but since both end portions 15c and 15d are each cut out in a predetermined narrow width, The center A does not swing, and the belt does not meander.

Next, when removing it, timing belt 1A
It suffices to remove the rod 6 that is inserted into each of the hole portions 4c, 4d of both end portions 15c, 15d. Since both ends 15c, 15d of the timing belt 1A are separated into their original states by removing the rod 6, the belt can be easily replaced as in the first embodiment.

In the above embodiment, both ends of the timing belt 1A are
The belts are properly centered by notching 15c and 15d in a predetermined shape, but the present invention does not necessarily need to apply the means. When used under a condition in which a little meandering is allowed, both ends 15c and 15d may be overlapped with each other without being cut into a predetermined shape and connected.

Further, in the above embodiment, the three rods 6 are inserted at the positions where the both ends 15c and 15d of the belt 1A are overlapped with each other for connection, but the specific number is not limited. For example, 9th
They may be connected by a single rod 6 as shown. However, in terms of increasing the connection strength, a large number of rods 6
Is preferably used.

In short, both ends 15c, 15d of the endless timing belt 1A
Are overlapped in the width direction and at least the both ends 15c, 15d
It suffices that the belt 1A is endlessly connected and held by the rod 6 being removably inserted in such a position that the rod 6 straddles both ends 15c and 15d. However, it is preferable to use a large number of rods 6 from the viewpoint of increasing the connection strength.

[Other Examples]

In each of the above-described embodiments, the circular hole is formed in the protrusion protruding on the outer surface of the belt as a means for inserting the rod 6 into each belt, but the present invention is not limited to this. It is needless to say that the hole may be formed as a rectangular hole, and it is not always necessary to form the hole in the timing belt itself. For example, as shown in FIG. 10, a separate member 14 in which the hole 4 is formed may be integrally attached to the outer side of the timing belt 1 and the rod may be inserted into the hole 4.

Also, the rod does not necessarily have to be installed in a penetrating state at each position of the belt. For example, as shown in Fig. 11, both ends
The rod 6 may be inserted through the portions 15c and 15d, and the other portions may be in the non-penetrating state.

Further, in the present invention, the specific shape of the rod 6 is not limited, and the mounting and fixing thereof can be appropriately performed by using a means other than the snap ring, and further, the material of the timing belt and the protruding teeth and the like provided on the inner surface side thereof The specific configuration of each part, such as the pitch and shape, can be arbitrarily changed within the scope intended by the present invention.

In addition, in the present invention, the specific use of the conveyor is not limited to the one used by being installed at the horizontal sealer position of the packaging machine as in the above embodiment. A conveyor in which a plurality of rods are arranged at intervals is most suitable for applications such as blowing heated air from below the conveying surface to the object to be conveyed because the conveying surface has air permeability. The device can be applied to various other uses, and the use is not questioned at all.

(Effect of the Invention) As described above, according to the present invention, the timing belt for supporting the rod is formed by two endless belts that are overlapped in the width direction, and the rod is inserted into both ends of the belt. By connecting the two belts endlessly with each other, or by forming the timing belt in an endless shape and overlapping both ends of the timing belt with each other in the width direction and inserting the rod into the end. Since they are connected endlessly, when using them, it is of course possible to perform proper use with reduced noise, as with the conventional endless timing belt.
It has become possible to disassemble the timing belt in an endless manner by simply removing the rods inserted into both ends of the timing belt.

As a result, even when the belt is installed in a state where it surrounds equipment other than the conveyor, there is no need to worry about removing the belt as in the case of using the endless timing belt, and the timing belt is made endless. As a result, it is possible to perform the attachment / detachment / replacement work extremely easily and quickly, and it is possible to make the handling extremely convenient.

Particularly, since the present invention connects both ends of the timing belt by using the rods for forming the conveying surface, the number of parts required for connecting the timing belt is not increased at all. The production cost can be very low, and the practical value can be very high.

Further, in the means for constructing the timing belt of the present invention by one non-endless timing belt, one end portion is formed into a narrow width shape in which a portion outside the widthwise central position of the belt is notched and removed. According to the means for forming and forming the other end in a narrow width shape in which the inner portion of the belt in the widthwise center position is notched and removed, both ends of the timing belt can be connected in the aligned state, The effect of proper use can be obtained without causing meandering or the like in the circulation drive traveling.

Further, in the means for constructing one timing belt of the present invention by stacking two belts on each other in the width direction thereof, as described above, the end portions of each belt are not cut into a predetermined shape and removed. The belts can be aligned, and the timing belt can be easily assembled and manufactured.

Further, according to the means for attaching the rods by inserting the end portions of the rods into the holes provided in the timing belt of the present invention, the mounting and dismounting of the rods is very easy, and the mounting position of the rods is very easy. The change can be made extremely easily only by changing the insertion position into the hole, and there is an advantage that the practicability can be further improved.

[Brief description of drawings]

1 to 3 show a first embodiment of a belt structure according to the present invention. FIG. 1 is a perspective view of a main part, FIG. 2 is a perspective view of a main part before assembly, and FIG. ) Is a plan view of an essential part at the time of assembly, and FIG. 3B is a sectional view taken along line XX of FIG. 1. FIG. 4 is a side view showing the installation state of the conveyor. FIGS. 5 (a) and 5 (b) are plan views of main parts showing another example of connection of the belt. FIGS. 6 to 8 show a second embodiment of the present invention. FIG. 6 is a perspective view of an essential part, FIG. 7 (a) is a plan view of the essential part at the time of assembly, and FIG. FIG. 6 is a cross-sectional view taken along line YY of FIG. 6, and FIG. 8 is a perspective view of a main part before assembly. 9 to 11 show another embodiment, and FIGS.
The figure is a plan view of the main part, and Figs. 10 (a) and 10 (b) are cross-sectional views of the main part. 12 (a) and 12 (b) are explanatory views showing a conventional example. 1,1 …… Timing belt 1A, 1A …… Timing belt, 4 …… Hole 6 …… Rod, 15a, 15b, 15c, 15d …… Both ends

Claims (4)

[Scope of utility model registration request] 1. A belt structure of a conveyor comprising a plurality of rods 6 mounted and supported between a pair of timing belts 1, 1 at predetermined intervals in the longitudinal direction of the timing belts 1, 1. Each of the timing belts 1 is formed by stacking two non-endless belts 1a, 1b in which the respective end portions 15a, 15a, 15b, 15b are separated from each other in the width direction thereof. The separation positions M and N of the respective end portions 15a, 15a, 15b and 15b of the belts 1b are displaced in the longitudinal direction of the timing belts 1 and 1, and the belts 1a and 1b are the separation positions. The rod 6 can be attached / detached to / from both the belts 1a and 1b at least at both ends 15a, 15a, 15b, 15b so that M and N are not located between the same rods 6 ... A belt structure of a conveyor, which is endlessly connected and held by being inserted into a belt. 2. A belt structure of a conveyor, wherein a plurality of rods 6 ... Are attached and supported between a pair of timing belts 1A, 1A, wherein each timing belt 1A has both end portions.
15c, 15d are formed in a non-endless shape formed in a separated state,
Further, the timing belt 1A has its both ends 15c, 15d overlapped in the width direction, and the rod 6 can be detachably attached to at least the both ends 15c, 15d so that the rod 6 straddles both ends 15c, 15d. A conveyor belt structure characterized by being endlessly connected and held by being inserted. 3. The end portion 15c on one side of the timing belt 1A is formed in a narrow width shape by removing a portion outside the center position of the timing belt 1A in the width direction, and the end portion 15 on the other side.
3. The conveyor belt structure according to claim 2, wherein d is formed in a narrow width shape by cutting out a portion inside the timing belt 1A from the center position in the width direction. 4. In the belt structure of the conveyor according to any one of claims 1 to 3 for utility model registration, the end portions of the rods 6 ... Are inserted into each timing belt. A belt structure for a conveyor, characterized in that a plurality of holes for detachably supporting each rod 6 between a pair of timing belts are provided.