JP2009083991A - Endless conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an endless conveyor, preventing metal powder or the like from mixing into carrying bread dough or the like. <P>SOLUTION: The endless conveyor comprises: a pair of endless belts 42 which is a pair of synthetic resin endless belts set to be mutually separated at a predetermined interval in a horizontal direction, and respectively has an inner peripheral face 44 of a smooth face and an outer peripheral face with teeth 46 disposed at a constant pitch in an extension direction of the endless belts; a plurality of pairs of pulleys 48, 50, 52, 54 wrapped around with a pair of endless belts, in which each pair of pulleys is arranged on the same axis and has cylindrical peripheral face engaged with the inner peripheral face of each endless belt; object carrying members sequentially aligned between a pair of endless belts along the endless belt; and a pair of drive gears 59 meshed with teeth 46 on the outer peripheral faces of the pair of endless belts and transmitting a driving force to the endless belts. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an endless conveyor, and more particularly to an endless conveyor suitable for conveying kneaded dough such as bread dough.

  In the bread manufacturing process, the dough is divided and rounded, fermented, degassed, panned through a series of processes such as panning, and then baked.

  In order to promote fermentation and stabilize the dough structure of each piece that has been divided and rounded, a device called puller is used. In this apparatus, the dough is placed on a conveyor and passed through a puller chamber maintained at a constant temperature over a certain period of time.

  A dough conveyor provided in a puller generally has a plurality of elongate dough holding members set in parallel with each other between a pair of endless metal chains separated in parallel to each other, and the dough conveyors are arranged along the dough holding members. A plurality of baskets for mounting a basket are attached.

  In a conventional dough conveyor using such an endless chain, metal powder is generated due to friction between the chain and the sprocket, and this may be mixed into the bread dough. Also, oil dripping due to oil supply to the metal chain, suspended powder in the machine device adheres to the metal chain and metal sprocket, and it is peeled off (mixed with metal wear powder, oil and bread dough powder) There is also a risk of mixing into the dough.

  In order to solve such a problem, a puller using a dough conveyor using a synthetic resin pulley and a synthetic resin endless belt has been developed. (Patent Document 1)

In this puller, the above-described problems in the conventional puller having a dough conveyor using a metal chain can be solved.
JP 2006-204221 A

However, the puller as described above is provided with a dough supply conveyor for simultaneously supplying the dough to a plurality of baskets of the dough conveyor attached as described above, and the dough supply conveyor has a metal chain. Since what has it is common, there existed the problem of mixing into the bread dough of the same metal powder and oil as in the above-mentioned conventional pull fur.
In view of the above, the present invention further improves the endless conveyor using the synthetic resin pulley and endless belt disclosed in Patent Document 1, and provides an endless conveyor suitable for the above-described dough supply conveyor. With the goal.

That is, the present invention
A pair of endless belts made of synthetic resin set at a predetermined interval in the horizontal direction, each provided with a smooth inner surface and a constant pitch in the extending direction of the endless belt A pair of endless belts having an outer peripheral surface having teeth;
A plurality of pairs of pulleys on which the pair of endless belts are hung, each pair of pulleys being disposed on the same axis, each having a cylindrical peripheral surface that engages with the inner peripheral surface of the endless belt Pulleys,
An article conveying member that is sequentially arranged between the pair of endless belts along the length direction of the endless belt and supported by the pair of endless belts;
There is provided an endless conveyor having a pair of drive gears that mesh with teeth on the outer peripheral surface of the pair of endless belts and transmit a driving force to the endless belt.

  Unlike the chain conveyor, this endless conveyor does not require the use of lubricating oil and does not generate metal powder. Therefore, even when this endless conveyor is used for transporting bread dough as described above, there is no possibility that lubricating oil or metal powder will be mixed into the bread dough.

The pulley can be formed of a synthetic resin.
A urethane-based synthetic resin is suitable for the endless belt. On the other hand, a synthetic resin different from the endless belt is preferably used for the pulley. For example, a nylon-based synthetic resin is suitable. These synthetic resins are preferably antistatic.

  The pair of drive gears is configured to press against one pair of pulleys of the plurality of pairs of pulleys via an endless belt. This is to ensure transmission of the driving force.

Further, a sensor for detecting the position of at least one of the pair of drive gears is provided, and the sensor detects that the one drive gear is separated from the pulley pressed by an endless belt by a predetermined distance. Sometimes a signal can be generated to inform it.
That is, there is a possibility that powder from the bread dough may adhere and accumulate between the teeth provided on the outer peripheral surface of the endless belt and between the teeth of the drive gear, so this accumulation is detected and becomes more than a certain level. A signal notifying that is generated when the alarm occurs, and an alarm is issued based on the signal or the drive is stopped to prevent the endless belt from coming off or breaking.

  Hereinafter, an embodiment in which an endless conveyor according to the present invention is applied to a bread dough supply conveyor for supplying bread dough to a puller will be described with reference to the accompanying drawings.

1 and 2 show an example of a basic configuration of the puller 10.
As shown in the figure, the puller 10 has a housing 14 having a puller chamber 12 and an endless dough conveyor 16 that receives the dough and conveys the inside of the puller chamber 12.

  As shown in FIG. 2, the endless dough conveyor 16 includes a pair of endless belts 18 that are set parallel to each other at a predetermined interval in the horizontal direction, a plurality of pulleys 22 on which the endless belt is hung, and an endless dough conveyor. 16, a plurality of dough holding members 24 that extend in a direction perpendicular to the dough conveying direction 16 and are connected to and supported by the endless belt 18 at both ends (only a part thereof is shown in the figure).

  As shown in FIG. 1, the housing 14 includes a base portion 14-1 set on the floor F and a puller portion 14-2 that defines the puller chamber 12. The endless dough conveyor 16 rises upward in the base portion 14-1 and extends horizontally in the puller chamber 12 over a plurality of stages in the vertical direction (six stages in the illustrated example). In the lower position of the base portion 14-1, the basket 24 'provided in the dough holding member 24 of the endless conveyor is received, conveyed upward, passed through the puller chamber 12, and discharged to the discharge chute 25. It is supposed to be. As shown in FIGS. 1 and 2, the endless dough conveyor 16 has two pairs of pulleys 22 at the upper and lower positions at the left end of the horizontal running portion (as viewed in the figure). Drive coupled to the output shaft.

  FIG. 3 shows an endless conveyor 40 according to the present invention for receiving the bread dough D that has undergone rounding processing from the upstream conveyor 35 and supplying it to the basket 24 ′ of the dough conveying member 24 that is passed through the puller 10.

  The endless conveyor 40 is a pair of endless belts 42 set in parallel with each other at a predetermined interval in the horizontal direction. Each endless conveyor 40 has a smooth inner surface 44 and an extension of the endless belt. A pair of endless belts 42 having outer peripheral surfaces with teeth 46 provided at a constant pitch in the direction, and a plurality of pairs of pulleys 48, 50, 52, 54 on which the pair of endless belts 42 are hung. The pulleys are arranged on the same axis and each have a plurality of pairs of pulleys 48, 50, 52, 54 having cylindrical peripheral surfaces 48 ′, 50 ′, 52 ′, 54 ′ that engage the inner peripheral surface of the endless belt 42. Between the endless belts 42 and the buckets 58 as the article conveying members, which are sequentially arranged along the endless belts and supported by the endless belts, and the teeth 46 on the outer peripheral surface of the pair of endless belts 42. And a pair of drive gears 59 for transmitting the driving force to the endless belt.

  Specifically, a bucket 58 is provided between the pair of endless belts 42 as an article conveying member that is sequentially arranged along the length direction of the endless belt and supported by the pair of endless belts. . Each bucket is configured by a main bucket portion 58 ′ and a sub bucket portion 58 ″ that are opposed to each other through a small gap in the length direction of the endless belt 42 and that form a concave portion of the bucket that receives the bread dough D. . The sub bucket portion 58 ″ is provided with connecting members 60 and 62 on both sides thereof, and is connected to the endless belt 42. The main bucket portion 58 ′ is pivotally attached to the sub bucket portion 58 ″. Yes.

  Each connecting member 60, 62 has a pin that extends between the side portion of the sub bucket 58 ″ and the endless belt 42 facing it, and connects them, and each pin has a rotating roller 66. 68, 70, 72 are rotatably mounted, and the rotating roller rolls on the rail 76 provided along the inner side of the endless belt 42 as the bucket moves.

  The main bucket portion 58 'is also provided with a pin 78 on its side, and as seen in FIG. 3, the four buckets from the right end portion to the vicinity of the central portion of the upper running portion of the endless conveyor 42 are A pin 78 of 58 'is supported on a rail different from the rail provided on the inner side of the endless belt 42. In this state, the main bucket portion 58' is in a lifted state as shown in FIG. A concave portion for receiving the bread dough D is formed together with the portion 58 ″. The four main bucket portions 58 'on the left side from the center of the endless conveyor 42 are inclined obliquely downward, and the bread dough is placed on the chute 23 (for receiving the dough of the puller 10 described above) at the lower position thereof. D is discharged. The dough D is simultaneously discharged from the four buckets to the chute 23, and the dough is supplied into each basket attached to the dough holding member 24 of the puller 10. That is, the four buckets on the left side are simultaneously inclined downward. For this reason, the length of the rail supporting the pin 78 of the main bucket portion 58 ′ in the four buckets is 4. Of the two buckets, the rail that supports the pin 78 of the leftmost bucket is the longest, the rail that supports the pin 78 of the bucket on the right is shortened by one bucket, and the rail that supports the pins of the two right buckets Similarly, the length is sequentially shortened by the length of one bucket.

  In the illustrated example, there are four bread doughs D that are simultaneously discharged from the endless conveyor 42, and eight baskets 24 ′ are provided in the dough conveying member 24 of the puller, and bread dough is provided in every other basket. Is to be supplied. This is because a dough transfer chute 26 is provided at the same position as the chute 25 for discharging bread dough from the puller 10 as shown in FIG. Bread dough that has been supplied to four baskets and has substantially gone around the puller is discharged to the dough transfer chute 26, through which other dough conveying members preceding the dough conveying member of the basket are discharged. Thus, the dough is transferred to the basket of the dough conveying member that has not been discharged, and the dough conveying member that has been transferred allows bread dough to enter all eight baskets.

  The drive gear 59 is pressed against the corresponding pulley 50 via the endless belt 42, and transmits the rotational driving force from the motor (not shown) transmitted via the intermediate drive transmission gear 74 to the endless belt 42. It is like that. As shown in FIG. 4, the drive gear 59 is displaceable around the rotation shaft of the intermediate drive transmission gear 74, such as flour from the dough between the teeth 46 of the endless belt 42 and the teeth of the drive gear 59. Is accumulated around the shaft of the intermediate drive transmission gear 74 so as to move away from the pulley 50. A position sensor (not shown) for detecting the position of the gear is provided adjacent to the drive gear 59, and this is notified when it is detected that the drive gear 59 is separated from the pulley 50 by a predetermined distance. A signal is generated.

  As is apparent from the above description, the endless conveyor is driven by receiving a rotational driving force from a motor (not shown) with the teeth of the endless belt 42 via the drive gear 59.

  As described above, the case where the endless belt according to the present invention is applied to the dough conveyor for supplying dough to the puller has been described, but is not limited thereto, and can be used in various processes for producing various breads. It can be used to transport various articles.

It is a figure which shows an internal structure at the time of seeing the pull fur supplied with bread dough by the endless conveyor which concerns on this invention from the front. It is a perspective view which simplifies and shows the endless dough conveyor in the pull fur of FIG. It is a perspective view which shows the endless conveyor which concerns on this invention. It is a figure which shows the principal part of the endless conveyor.

Explanation of symbols

Puller 10; Puller chamber 12; Housing 14; Base part 14-1; Puller part 14-2; Endless dough conveyor 16; Endless belt 18; Pulley 22; Dough holding member 24; Replacement chute; Drive belt 32; Drive motor 34; Upstream conveyor 35; Endless conveyor 40; Endless belt 42; Teeth 46; Pulleys 48, 50, 52, 54; Cylindrical peripheral surfaces 48 ', 50', 52 ', 54 ′; bucket 58; drive gear 59; main bucket portion 58 ′; sub bucket portion 58 ″; connecting members 60, 62; rotating rollers 66, 68, 70, 72;

Claims (4)

A pair of endless belts made of synthetic resin set at a predetermined interval in the horizontal direction, each provided with a smooth inner surface and a constant pitch in the extending direction of the endless belt A pair of endless belts having an outer peripheral surface having teeth;
A plurality of pairs of pulleys on which the pair of endless belts are hung, each pair of pulleys being disposed on the same axis, each having a cylindrical peripheral surface that engages with the inner peripheral surface of the endless belt Pulleys,
An article conveying member that is sequentially arranged between the pair of endless belts along the length direction of the endless belt and supported by the pair of endless belts;
An endless conveyor having a pair of driving gears that mesh with teeth on the outer peripheral surface of the pair of endless belts and transmit a driving force to the endless belt.   The endless conveyor according to claim 1, wherein the pulley is made of a synthetic resin.   The endless conveyor according to claim 1 or 2, wherein the pair of drive gears are pressed against one pair of pulleys of the plurality of pairs of pulleys via the endless belt.   A sensor that senses a position of at least one of the pair of drive gears, the sensor detecting that the one drive gear is separated from the pulley pressed by the endless belt by a predetermined distance; 4. An endless conveyor according to claim 3, wherein a signal for informing it is generated.

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