JP2008050130A - Endless conveyor of perforated paper belt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary belt conveyor in which a perforated endless paper is used as a conveyor belt. <P>SOLUTION: A perforated endless paper belt 30 is used as a conveyor belt. In a conveyor used for conveying the works which contaminate the belt during conveyance or the works the contamination of which by the deposit on the surface of the belt must be avoided, the belt contaminated after used for conveyance for a specified time is scrapped without washing. The upper surface of a conveyor frame 1 is formed in a slide bed. A feed pin for a toothed pulley 24 installed at the intermediate part of the conveyor frame 1 is engaged with belt feed holes 31 and driven to run the perforated endless paper belt 30. A belt loosening device 5 for attaching and detaching the belt by supporting the cantilevered frame end portion rotatably a predetermined angle from the horizontal downward is installed near the tail of the conveyor frame 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is suitable for transporting foods, cosmetics, pharmaceuticals, and the like that handle workpieces that contaminate the belt with liquid, powder, or gel-like separation during transportation, or workpieces that need to avoid workpiece contamination due to deposits on the belt surface. More particularly, the present invention relates to an endless conveyor for a paper belt having a feed hole engaged with a drive sprocket.

  When transporting colored foods, transporting while avoiding contamination with germs, transporting odors, or transporting foods that are susceptible to corrosion, sanitary conveyor belts should be used for chemicals, detergents, etc. Cleaning and replacement of the belt using the machine limits the operation time, so it is not possible to improve the production volume (conveyance efficiency), and even though a durable belt is used at all times. In addition, the service life was shortened by a cleaning process. The normal belt conveyor is driven by contacting the drive pulley with the back of the endless belt and applying tension to the belt with a tension roller. Therefore, the belt must be removed without disassembling the drive support mechanism when replacing or cleaning the belt. I can't. In particular, in food and pharmaceutical transport lines, the fine debris and dust that adhere to and accumulate on the belt surface and other parts are removed, the belt is removed by disassembling the conveyor to avoid contamination with germs, and each part is used with chemicals, detergents, etc. It took a lot of labor and time because it was reassembled after cleaning. On the other hand, there are known ones that form recesses at regular intervals on the surface of a long sheet made of cardboard and feed a workpiece to be supplied to an electronic component mounting machine or the like by making feed holes on one or both sides of the sheet (for example, (See Patent Documents 1 and 2). Not only paper but also a long sheet of this type using a film (for example, see Patent Document 3) is also known.

JP-A-60-206099 (page 1, right column, line 11 to page 3, upper right column, line 18, line 1). JP-A-62-4174 (page 2, lower left column, 9th line to right column, 7th line, FIG. 1). JP-A-62-105323 (page 2, lower right column, line 18 to page 3, upper right column, line 20, FIGS. 1 and 3).

  As described above, recesses are formed at regular intervals on the surface of a long sheet made of cardboard or film, or adhesive layers are provided at regular intervals on the surface of the long sheet, and feed holes are formed on one or both sides of the sheet. Although belts that convey workpieces to be supplied to electronic component mounting machines are known, workpieces or powders in which liquid or powdery or gel-like separations such as moisture or oil may ooze and separate from themselves It is unsuitable for transporting workpieces with the separated material exposed on the surface or workpieces that dislike adhesion of microorganisms such as bacteria. In other words, because of the recesses, the separated material is collected by oozing, etc., or it is difficult to engage with the workpiece recess due to the liquid or gel-like separated material exposed on the surface. The separated object covers the mounting layer and prevents adhesion of the work, or the separated object on the adhesive layer adheres to the work to be transported later, or can only transport the work in a shape that fits the recess. Since the shape of the pre-cleaning is extremely difficult, both are unsuitable as sanitary conveyor belts. The object of the present invention is suitable for transporting foods, cosmetics, pharmaceuticals, etc. that handle workpieces that contaminate the belt with liquid, powdery or gel-like separations, or workpieces that need to avoid workpiece contamination due to deposits on the belt surface. In particular, the present invention provides a conveyor having an endless conveying belt having a feed hole engaged with a paper belt conveyor, and in particular engaging with a drive sprocket.

  In order to achieve the above object, claim 1 of the present invention uses a belt in which paper or nonwoven fabric is formed in an endless shape on a conveying belt that conveys a workpiece, and is separated in a liquid, powdery, or gel form during conveyance. An endless paper belt conveyor that conveys a workpiece that contaminates the belt or a workpiece that needs to avoid contamination of the belt surface with an adhering belt, and a meshing feed hole having a constant pitch along the longitudinal direction of the conveying belt. And a drive means having a drive sprocket that meshes with the feed hole is provided in the middle of the conveyor frame, and a belt loosening device and a take-up device are provided near the tail of the conveyor frame. It is an endless conveyor for perforated paper belts. According to a second aspect of the present invention, the feed holes that are opened at a constant pitch are formed by drilling the transport belt itself, and the mesh feed holes of the constant pitch are provided at one end of the transport belt. 3. The perforated paper belt endless conveyor according to claim 2, wherein the endless conveyor is provided in the vicinity or in the vicinity of each end of both sides of the conveyor belt, or in a substantially central portion of the conveyor belt. According to a fourth aspect of the present invention, the mesh feed holes having a constant pitch are provided in a ribbon-like sheet separate from the transport belt in advance in the longitudinal direction at a constant pitch, and the ribbon-shaped sheet is provided at least at one end of the transport belt. 5. The endless conveyor for a perforated paper belt according to any one of claims 1 to 4, wherein the conveyor belt is water-soluble.

  6. The take-up device according to claim 6, further comprising a drop-up take-up pulley that abuts on the back side of the tail portion of the conveyor belt on the return side of the tail and supports the bearing and the roller. The endless conveyor for a perforated paper belt according to any one of claims 1 to 5, characterized by tension. According to a seventh aspect of the present invention, in the take-up device, a take-up pulley is pivotally supported in a guide hole opened in a side plate portion of a conveyor frame in which one end of the long hole is the lower end and the other long hole end is the upper end. When the conveyor belt is driven, the take-up device is opened to the side plate portion of the conveyor frame when the conveyor belt is driven. The shaft that supports the take-up pulley is dropped along the guide hole toward the end of the long hole on one side of the guide hole, and the other length of the guide hole is attached when the conveyor belt is attached on the machine. 7. The perforated paper base according to claim 6, wherein a shaft for supporting the take-up pulley is retracted to a retracting portion having a short substantially vertical portion after forming a horizontal portion facing the hole end. It is a bet endless conveyor.

  According to a ninth aspect of the present invention, the drive means provided in the intermediate portion of the conveyor frame includes at least one engagement hole formed along the conveyor belt on the peripheral surface of the drive sprocket for a predetermined length. The perforated paper belt endless conveyor according to any one of claims 1 to 8, further comprising a snubber roller, wherein the snubber roller is pivotally supported integrally with the drive unit support frame or separately from the drive unit support frame. is there. According to a tenth aspect of the present invention, at least a drive unit support is supported by fixing a drive unit support leg that supports the drive unit support frame integrally or separately to an intermediate part from the conveyor frame head part only on one side of the conveyor frame side. Frame support that supports the entire conveyor with the legs, and adheres to the conveyor frame side only at the same conveyor frame side as the drive support legs at the tail or middle of the conveyor frame, depending on the length of the conveyor frame The perforated paper belt endless conveyor according to claim 9, wherein the entire conveyor is supported by the drive part support leg and the frame support leg by providing the leg part. The belt loosening device forms a cantilevered conveyor frame end portion having a predetermined length on the tail side, and overlaps the frame end portion. A pivot shaft that forms a hinge that supports the frame end portion downwardly from a horizontal plane so that the frame end portion can pivot at a predetermined angle, and a stopper knob that maintains the frame end portion horizontally. When the conveyor is operating, the end of the frame is kept horizontal, and the conveyor belt is driven by tensioning the conveyor belt by a take-up device. When the conveyor belt is attached or detached, the stopper knob is released to form the hinge. The other end of the conveyor frame that faces the support leg fixing side of the conveyor frame after loosening the conveyor belt by rotating the frame end portion downward from the horizontal plane by a predetermined angle around the rotation axis The perforated paper belt endless conveyor according to claim 10, wherein the conveyor belt is slidable laterally from the section to be detachable. That.

  Since the present invention is a perforated paper endless belt conveyor used as a conveyor belt in a food factory, a cosmetic factory or a pharmaceutical factory, the used dirty belt after being used for conveyance for a certain time (for example, half a day to one day). Is removed by using a belt loosening device of the conveyor, or the transport surface is broken or cut so that it is discarded without being cleaned. This is advantageous in that the cleaning time to be allocated can be allocated to the transport and the labor cost for cleaning can be reduced. In order to achieve the effect, a conveyance belt made of a paper material was used which was torn without using a tool in particular when removed after use, and which can be treated as a waste or can be treated with a combustible material or dissolved with water. Furthermore, since a clean conveyance surface is always supplied, the workpiece can be conveyed while maintaining the cleanliness. In addition, there is also an effect that a tension mechanism that takes advantage of the characteristics of a thin and light belt while having the tensile strength of paper can be achieved at a low cost with a simple mechanism. In addition, the new conveyor belt can be easily mounted.

1 is a front view of an endless conveyor for a perforated paper belt of the present invention, FIG. 2 is a plan view, and FIG. 3 is a left side view of FIG. This conveyor is made of paper or non-woven fabric as an endless belt for transporting foods, cosmetics, pharmaceuticals, etc. that avoids the adhesion of workpieces that contaminate the conveyor belt with moisture or oil during conveyance or dirt attached to the belt. The endless paper belt 30 is used. The upper surface of the conveyor frame 1 is a slide bed, a tail pulley 3 is provided at the tail of the conveyor frame 1, a head pulley 4 is provided at the head of the conveyor frame 1, and a drive unit 15 having a toothed pulley 24 at the middle is provided. The workpiece is conveyed by driving an endless paper belt 30 (or also expressed as a conveyance belt 30) wound around the pulleys 3, 4, and 24. The tail pulley 3 and the head pulley 4 can be any of pulleys, fixed round shafts, frame bents, and knife edges.
As shown in FIGS. 2 and 5, the toothed pulley 24 has drive sprockets 25 and 25 each having a feed pin 25a fixed to both ends of the drive shaft 21 having a shaft center aligned with the motor rotation shaft. In addition, a toothed pulley body 24 a having the same diameter as that of the driving sprocket 25 is disposed between the driving sprockets 25, 25. The drive shaft 21 is supported by bearings 22 that are fixed to the side plate portion 18 having a width substantially the same as the diameter of the drive sprocket 25 at the end that is not fixed to the rotating shaft of the motor. The body 24a of the toothed pulley may be a roller or may be integrally formed with the driving sprocket 25.

  As shown in the plan view of FIG. 2, the conveying belt 30 has feed holes 31 formed at a constant pitch along the longitudinal direction near both side ends or near one end of the belt. A drive sprocket 25 (FIG. 5) having a feed pin 25 a meshing with the hole 31 is attached. The endless paper belt 30 is caused to travel by driving the toothed pulley 24 whose main driving is meshing between the feed hole 31 and the feed pin 25a in the drive sprocket 25. The mesh feed holes 31 having a constant pitch are not limited to both sides of the conveyor belt 30 as shown in FIG. 2, but may be provided on one side of the belt or the center of the belt, although not shown.

  The mesh feed holes 31 with a constant pitch may be provided by being punched in the conveyor belt 30 itself, or may be previously punched at a constant pitch in the longitudinal direction in a ribbon-like sheet separately from the conveyor belt 30, The ribbon-like sheet may be fixed to at least one end of the conveying belt 30. The ribbon-like sheet may be of the same material and thickness as the conveyor belt, or may be paper or non-woven fabric having a material and thickness different from those of the conveyor belt. 1 to 3, reference numeral 2 denotes a side plate portion of the conveyor frame 1, 5 denotes a belt loosening device assembled near the tail of the conveyor frame 1, 5a denotes a frame end portion of the belt loosening device 5 that is cantilevered, 6 Is a take-up pulley, 6a is a shaft of the take-up pulley, 7 is a guide hole opened in the frame end portion 5a, 8 is a leg provided in the vicinity of the belt loosening device 5, and 9 is an upper end of the leg 8 from the upper end of the conveyor frame 1. Tightening bolts passed through the side plate 2, 10 is a support shaft of the belt loosening device, 11 is a stopper knob, 12 is a tip pin of the stopper, 13 is a pin hole into which the tip pin 12 is inserted, 15 is a drive unit, and 9 is a leg. 8 is a fastening bolt that is passed from the upper end of 8 to the side plate 2 of the conveyor frame 1. The stopper knob 11 is formed by fixing a knob portion and a tip pin (stopper pin) 12 of the stopper, or is formed integrally.

  Next, the belt loosening device 5 will be described in detail. As shown in FIG. 1, a drop take-up pulley 6 that supports a bearing and a roller, and a stopper pin 12 of a stopper knob 11 when a belt is attached / detached, a pin hole 13 (see FIG. 1) on the frame end portion 5a side. It is provided with a frame end portion 5a supported by a support shaft 10 that is retracted downward by its own weight by being pulled out from 1). That is, the frame end portion 5a in a cantilever state having a predetermined length on the tail side is assembled to the frame side plate portion 2 via the support shaft 10, and between the front end portion of the frame body overlapped with the frame end portion 5a. Includes a hinge mechanism centering on a support shaft 10 that supports the frame end portion 5a so as to be pivotable downward from a horizontal plane by a predetermined angle, and a stopper knob 11 that maintains the frame end portion 5a horizontally. The frame end portion 5a is supported by a guide hole 8 bent substantially in an L shape or semicircular shape, and a drop take-up pulley 6 that supports the return side of the conveyor belt. The belt slackening device 5 is constituted by the tail pulley 3 that forms a tail when the top surface is kept substantially flush.

4 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 5 is a cross-sectional view taken along line BB in FIG.
A drive part support frame 16 having an L-shaped cross section is fixed to an intermediate part of the conveyor frame 1 with fastening bolts 19 and 19 (FIG. 1), a geared motor 20 is supported on a side plate part 17 of the support frame, and a motor rotation shaft and an axis are connected. The drive shaft 21 to be inserted is inserted through a hole (not shown) provided in the side plate portion 17. The drive shaft 21 is supported by a bearing 22 fixed to a side plate portion 18 having a width substantially the same as the diameter of the drive sprocket 25 at an end portion that is not the end portion fixed to the rotating shaft of the motor 20. Drive sprockets 25 and 25 are fixed in the vicinity, a number of feed pins 25a are provided on the peripheral surface of the drive sprocket 25 and engaged with the feed holes 31 of the paper belt 30, and teeth between the drive sprockets 25 and 25 are provided. The body portion 24 a of the attached pulley is disposed, and the endless paper belt 30 is caused to travel by driving the drive shaft 21. In order to engage the feed holes 31 of many paper belts 30 with a large number of feed pins 25a on the circumferential surface of the drive sprocket 25, at least one of the drive parts in the tail direction is provided with a snubber roller 26. It is pivotally supported on the side plate portion 17 in a cantilever manner integrally with or separately from the drive portion support frame. The snubber roller 26 can be a pulley, a fixed round shaft, a frame bent, or a knife edge. In the embodiment shown in FIGS. 1 and 2, one snubber 26 is installed in each of the head portion and tail portion of the drive unit, that is, cantilevered on the side plate portion 17 obliquely above the drive shaft 21. Each is pivotally supported.

  Further, as a take-up device, a take-up pulley 6 for supporting a roller bearing and a roller on the return side of the conveyor belt 30 near the tail of the conveyor frame 1 is provided. When the transport belt is driven, as shown in FIG. 1, the shaft 6a that pivotally supports the take-up pulley 6 is directed toward the one-side long hole end portion 7a along the guide hole 7 that is bent by approximately 90 degrees in the frame side plate portion 2. The conveyor belt 30 is tensioned by the dead weight of the take-up pulley 6. When attaching / detaching the endless conveyor belt 30 in advance, the cantilevered conveyor frame end portion 5a assembled to the cantilevered frame side plate portion 2 having a predetermined length on the tail side via the support shaft 10 is provided with a stopper knob. When the tip pin 12 is removed from the engagement hole 13 (FIGS. 1 and 2) by pulling out the pin 11, it can be rotated downward by a predetermined angle from the horizontal plane. As shown by the chain line in FIG. 1, the belt 30 is loosened by rotating the conveyor frame end portion 5a downward by a predetermined angle, so that the conveyor belt 30 can be slid laterally from the conveyor frame side plate portion side, and the belt can be attached and detached. .

In addition, when the conveying belt 30 for attaching the end portion on the machine is attached / detached, a take-up pulley is formed to a retracting portion having a short substantially vertical portion after forming a horizontal portion toward the other long hole end portion 7b of the guide hole 7 After the shaft 6a supporting the shaft 6 is retracted and the take-up to the conveyor belt 30 is released, the conveyor belt 30 is hung and the both ends are bonded to each other on the slide bed, and the bonding of both ends is fixed, The shaft 6a that pivotally supports the take-up pulley 6 along the guide hole 7 opened in the frame side plate portion 2 is dropped toward the one-side long hole end portion 7a, and the conveyor belt 30 is tensioned by its own weight. Anyway.
The drive unit support frame 16 having an L-shaped cross section, which is a support frame for fixing the drive unit to the intermediate portion near the head of the conveyor frame 1 and is also a drive unit side frame support leg of the conveyor frame 1, is bolts 19, 19. Is fixed to the frame side plate portion 2 on one side. Further, a supporting leg portion 8 fixed by a bolt 9 only to the same frame side plate portion 2 as the driving portion supporting frame 16 having the L-shaped cross section is provided in an intermediate portion near the tail portion of the conveyor frame. Then, the conveyor belt 22 is slid in the lateral direction from the side of the conveyor frame side plate without the support leg so as to dodge the drive unit support frame 16 and the support leg 8 so that it can be attached and detached. In order to support both ends of the drive shaft 21 of the toothed pulley 24 provided with the drive sprocket 25, the support plate 18 is fixed to the other frame side plate 2 on the drive support frame 16. Is substantially the same as the diameter of the toothed pulley 24 and does not interfere with the attachment / detachment.
Depending on the work to be carried, the conveyor frame becomes large, and it is separate from the drive unit support frame and supports the drive unit and a part of the conveyor frame. The lower part of the frame support leg that supports the frame may be joined, for example, with a reinforcing material in the horizontal direction. In addition, each support leg may be a pipe shape with a square or round cross section, and a caster for movement may be attached to the surface in contact with the floor. It is in a state of being fixed to only one side of the part, and may be configured to be detachable by sliding the conveyor belt 30 laterally from the other conveyor frame side plate part side facing the support leg fixing side part. . With this structure and the cantilevered shaft support structure of the snubber roller 26, the belt is loosened, and a large number of the holes 31 engaged by the feed pins 25a installed on the peripheral surface of the drive sprocket 25 are all The conveyor belt 30 can be attached and detached simply by allowing the conveyor belt 30 to float from the drive sprocket 25 by a gap that can be disengaged.

As shown, the end pulley 3, the head pulley 4, the snubber roller 26, the toothed pulley 24, the snubber roller 26, the take-up pulley 6, and the tail pulley 3 that are supported by the conveyor frame 1 and the like are endless paper belt 30. Is hung as shown by the chain line in FIG. Thereafter, the belt loosening device 5 is rotated around the support shaft 10 so as to be substantially parallel to the horizontal plane from the downwardly rotated state at a predetermined angle, so that the cantilevered conveyor frame end portion 5 a By inserting the stopper knob 11 so that the tip pin 12 is inserted into the engagement holes 13, 13 provided in the side plate portion 2, the belt loosening device 5 is returned to the driving state.
With this mechanism, this conveyor is made of paper or non-woven fabric to convey work that needs to avoid contamination of the belt with liquid, powder, or gel-like separated materials, or work contamination due to deposits on the belt surface. A perforated belt conveyor used in a food or cosmetic or pharmaceutical factory that uses a conveyor belt formed in an endless shape, a used dirty belt after being used for transportation for a certain period of time (for example, half a day to one day) It is removed by using a belt loosening device of the conveyor, or the conveying surface is broken or cut, and is discarded without being washed.

FIG. 5 is a cross-sectional view of the drive unit. As shown in the drawing, the drive unit 10 is fixed to the frame side plate 2 near the head through bolts 19 and 19, and the tail pulley 3 is provided on the other side, and the upper surface of the conveyor frame 1 supports the travel of the endless paper belt 30. It is a slide bed.
As shown in FIGS. 1, 2, and 5, the drive unit 15 is installed horizontally between a geared motor 20 fixed to the inner wall of the side plate 17 of the support frame 16 and a support plate 18 that opposes the support frame 16. Drive shaft 21 and a toothed pulley 24 provided on the drive shaft 21. The front end side of the drive shaft 21 is supported by a bearing 22 attached to the support plate 18 with bolts 23, and the toothed pulley 24 has a large number of feed pins 25a embedded in the peripheral surface in the vicinity of both ends of the pulley. Drive sprockets 25, 25 are attached. In FIG. 5, reference numeral 24 a denotes a body portion of the toothed pulley 24.
A toothed drive pulley 24 having a roller portion, which is a body portion 24 a of a toothed pulley having substantially the same diameter as the outer periphery of one drive sprocket 25, is assembled so as to rotate together with the drive shaft 21. The body 24a of the toothed pulley and the driving sprocket 25 may be integrally formed. As shown in FIG. 2, holes 31, 31 are formed at a constant pitch along the longitudinal direction at one end or near both ends of the conveyor belt 30, and the holes 31 are used for feeding the drive sprockets 25, 25. Since the pins 25a and 25a are engaged, the conveyor belt 30 is driven at a constant speed by driving the driving sprocket 25 at a constant speed, and the work is conveyed. As described above, the snubber roller 26 provided in the direction of the tail of the drive unit is supported in a cantilevered manner on the side plate portion 17 so that the belt can be pulled out in the lateral direction. There is nothing.

  FIG. 6 is a side view of an embodiment in which the drive unit 15 is attached to an intermediate portion near the head of the conveyor frame. The drive unit 15 in this case includes a geared motor 20 fixed to the side plate portion of the support frame 17, a toothed pulley 24 provided on the side plate portion of the support frame 17, and a snub pulley 26 disposed downstream of the toothed pulley 24. However, the snubber pulley 26 in this case is disposed only on the upstream side, that is, on the tail side, omitting the downstream side of the drive unit. The belt loosening device 5 has the same configuration as that shown in FIG. 1, and, as will be described later, by pulling out the tip pin 12 (FIG. 2) of the stopper knob 11 and rotating the frame end portion 5a downward from the horizontal plane by a predetermined angle, By shortening the distance between the pulley 3 and the drive pulley 4, the conveyor belt 30 is greatly loosened as shown by the chain line, and the conveyor belt is slid laterally from the side of the conveyor frame 1 to be removed or mounted. it can.

  1 and 6 show side views of the conveyor belt 22 in a tensioned state. The shaft 6a of the take-up pulley 6 is supported by a guide hole 7 formed in a substantially L shape or semicircular shape near the tail of the conveyor frame 1, and the belt tension is formed by the own weight of the take-up pulley 6. The take-up action is automatically performed by moving up and down accordingly. During operation for driving the conveyor belt, the conveyor belt 30 is run in a tensioned state by the take-up pulley 6, but when the conveyor belt 30 is bonded to the end on the machine, the other long hole of the guide hole 7 is attached. After the horizontal portion is formed toward the end portion, the shaft 6a that pivotally supports the take-up pulley 6 is retracted to the retracting portion having a short substantially vertical portion, and after the take-up to the transport belt 30 is released, the transport belt 30 is After hanging and sticking both ends on the slide bed and bonding the both ends firmly, the take-up pulley 6 is pivotally supported toward the end of one side long hole of the guide hole 7 opened in the frame end portion 5a. The shaft 6 a to be moved is dropped along the guide hole 7, and the conveyor belt 30 is tensioned by the weight of the take-up pulley 6.

  The state shown by the chain line in FIGS. 1 and 6 is a side view of the state in which the belt loosening device 5 is released when the conveyor belt 30 is attached or detached. In order to operate the frame end portion 5a in a cantilever state having a predetermined length on the tail side assembled to the frame side plate portion 2 via the support shaft 10, the frame end portion 5a is moved around the support shaft 10. The distance between the tail pulley 3 and the drive pulley 4 is shortened by pulling out the tip pin 12 (FIG. 2) of the stopper knob 11 that is kept horizontal and rotating the frame end portion 5a downward from the horizontal plane by a predetermined angle. As a result, the endless paper belt 30 is loosened greatly as shown by the chain line in FIGS. 1 and 6, so that the holes 31 that are opened at a constant pitch along the longitudinal direction are driven near one end or both ends of the endless paper belt 30. The endless paper belt 30 is slid laterally from the other side of the conveyor frame facing the support leg fixing side of the conveyor frame. It is possible to easily remove or attach the belt after attaching the end portions on the machine.

  Also, when wearing, the endless paper belt 30 is hung around the slide bed by sliding the conveyor belt laterally from the other side of the conveyor frame facing the support leg fixing side of the conveyor frame. After that, holes 31 drilled at a constant pitch along the longitudinal direction near one end or both ends of the endless paper belt 30 are aligned and engaged with the feeding pins 25a and 25a of the toothed pulley 24. After the positioning, the frame end portion 5a is rotated upward by a predetermined angle from the released state, the stopper knob 11 locks the frame side plate portion 2 and the frame end portion 5a, and the upper portion of the frame end portion 5a is placed on the conveyor frame. Since the distance between the tail pulley 3 and the head pulley 4 is the same as that in the driving state by maintaining the surface substantially flush with the upper surface of the belt 1, the conveyor belt 30 can be attached. In the case of such a belt loosening device that moves downward by a predetermined angle, the take-up is canceled by the tension adjustment function (a function that occurs from a structure that does not resist lifting force greater than gravity) by the take-up device itself. It is possible to loosen the belt without it.

  As described above, the present invention uses a transport belt in which paper or non-woven fabric is formed in an endless manner for transporting a work that stains the belt with moisture or oil during transport or a work that dislikes adhesion to the belt. Perforated paper belt endless conveyors used in food or cosmetic or pharmaceutical factories, used dirty belts after being used for transport for a certain period of time (for example half day to one day), use conveyor belt loosening device It is to be removed without being washed, by removing it, or by breaking or cutting the conveying surface.

The front view of the endless conveyor of this invention perforated paper belt. The top view of FIG. The left view of FIG. The expanded sectional view in the AA line of FIG. The expanded sectional view in the BB line of FIG. The side view of the embodiment which attached the drive unit to the intermediate part near the head.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyor frame 2 Frame side plate part 3 Tail pulley 4 Head pulley 5 Belt loosening device 5a Frame end part 6 Takeup pulley 6a Takeup pulley shaft 7 Guide hole 7a Long hole end 7b Retraction part 8 Supporting leg part 9, 19 Bolt 10 Support shaft of belt loosening device 11 Stopper knob 12 Tip pin (stopper pin)
13 Pin hole 15 Drive unit 16 Drive unit support frame with L-shaped cross section 17 Support plate side plate 18 Support plate 20 Geared motor 21 Drive shaft 22 Bearing 23 Bolt 24 Toothed pulley 24a Toothed pulley body 25 Drive sprocket 25a Feed Pins 26 Belt folding bar (snab roller)
30 Perforated endless paper belt 31 Feed hole

Claims (11)

Using a belt with paper or non-woven fabric endlessly formed on the conveyor belt that transports the workpiece, the workpiece is contaminated with a liquid, powder, or gel-like separation during conveyance, or the workpiece is contaminated by deposits on the belt surface. An endless paper belt conveyor that conveys workpieces that need to be avoided, and is provided with mesh feed holes at a constant pitch along the longitudinal direction of the transport belt in the transport belt, and meshed with the feed holes in the intermediate part of the conveyor frame. An endless conveyor for a perforated paper belt, characterized in that a driving means including a matching driving sprocket is provided, and a belt loosening device and a take-up device are provided near the tail of the conveyor frame. 2. The perforated paper belt endless conveyor according to claim 1, wherein the feed holes opened at a constant pitch are provided by being drilled in the transport belt itself. 3. The perforated paper belt according to claim 2, wherein the mesh feed holes having a constant pitch are provided in the vicinity of one end of the conveying belt, in the vicinity of each end on both sides of the conveying belt, or in a substantially central portion of the conveying belt. Endless conveyor. The mesh feed holes having a constant pitch are provided by previously punching a ribbon-like sheet separate from the conveyor belt at a constant pitch in the longitudinal direction, and fixing the ribbon-like sheet to at least one end of the conveyor belt. 2. An endless conveyor for a perforated paper belt according to claim 1. The endless conveyor for a perforated paper belt according to any one of claims 1 to 4, wherein the conveyor belt is water-soluble. The take-up device includes a drop-up take-up pulley that abuts on the back side of the rear side of the conveyor belt on the return side of the tail belt, and supports the bearing and the roller. An endless conveyor for a perforated paper belt according to any one of claims 1 to 5. In the take-up device, a shaft for supporting a take-up pulley is placed in a guide hole opened in a side plate portion of a conveyor frame having a lower end on one side and an upper end on the other long hole. 7. The perforated paper belt endless conveyor according to claim 6, wherein the belt is tensioned by the take-up pulley due to the weight of the take-up pulley. When the transport belt is driven, the take-up device drops the shaft supporting the take-up pulley along the guide hole toward the end of one side of the guide hole opened in the side plate of the conveyor frame. When attaching the conveyor belt to which the ends are attached, after forming a horizontal part facing the other long hole end of the guide hole, the shaft that pivotally supports the take-up pulley is retracted to the retracting part having a short substantially vertical part The perforated paper belt endless conveyor according to claim 6. The drive means provided in the intermediate portion of the conveyor frame includes a snubber at least one in the tail direction in order to mesh the mesh feed hole along the transport belt with a predetermined length on the circumferential surface of the drive sprocket. The endless conveyor for a perforated paper belt according to any one of claims 1 to 8, wherein the belt is integrally or separately supported with the drive unit support frame in a cantilever manner. A drive unit support leg that supports the drive unit support frame integrally or separately from the conveyor frame head is fixed to only one side of the conveyor frame side, and at least the drive unit support leg is used to support the entire conveyor. Furthermore, according to the length of the conveyor frame, a frame support leg that is fixed to the conveyor frame side part only on the conveyor frame side part side, which is the same as the drive part support leg part, is provided at the tail or intermediate part of the conveyor frame. The endless conveyor for a perforated paper belt according to claim 9, wherein the entire conveyor is supported by the drive support leg and the frame support leg. The belt loosening device forms a cantilevered conveyor frame end portion having a predetermined length on the tail side, and the frame end portion is placed in a horizontal plane between the frame end portion and the front end portion of the frame main body. A pivot shaft that forms a hinge that is supported downward and pivotable downward by a predetermined angle, and a stopper knob that keeps the frame end portion horizontal.When the conveyor is operating, the frame end portion is kept horizontal, Drive the conveyor belt by tensioning the conveyor belt with the take-up device,
When the conveyor belt is attached or detached, the stopper knob is released, the frame end portion is rotated downward by a predetermined angle from the horizontal plane around the rotation axis that forms the hinge, the conveyor belt is loosened, and then the conveyor 11. The endless perforated paper belt according to claim 10, wherein the conveyor belt is slidable in a lateral direction from the other side of the conveyor frame facing the support leg fixing side of the frame so as to be detachable. Conveyor.

Images