JP2012041144A - Carrier chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrier chain easy even in magnet maintenance work, by surely incorporating a magnet piece for attracting-holding a carrying article into a link module without changing an outside dimension of the link module, preventing falling-off of the magnet piece even when vibration and impact in the chain vertical direction are caused when carrying the article, surely and stably carrying the carrying article by exhibiting sufficient attracting-holding force even in an inclined carrying state and an easily slippery mounting state of a carrying surface, and achieving smooth driving carrying of securing sufficient slackening on the chain return side.SOLUTION: In this carrier chain 100, the magnet piece 130 for attracting-holding the carrying article W is stored in a synthetic resin magnet storing slider 140, and the magnet storing slider 140 is respectively insertably-extractably stored in a pair of right-left slider laterally long holes 113 arranged in the chain width direction from a link side surface 110b of the link module 110.

Description

  The present invention relates to a conveyance chain that carries and conveys a conveyance article, and in particular, it can carry and convey a conveyance article even when the conveyance surface is in an inclined conveyance state or a mounting state in which it is easy to slip. This relates to a simple transport chain.

  As a conventional transport chain, as shown in FIG. 13, a link module 510 made of a synthetic resin provided with a transport surface 510a on which a transported article W is mounted and hinge portions 511 protruding in front of and behind the transport surface 510a, respectively. A large number of connecting pins 520 that pass through pin insertion holes 512 formed in the hinge portion 511 are connected in the longitudinal direction of the chain, and are hung between the driving side sprocket S1 and the driven side sprocket S2 so as to have a beverage bottle, a drink can, etc. A conveyor belt 500 that conveys the conveyed article W is known (see, for example, Patent Document 1).

  Also, as a conventional transport chain, in order to transport a transported article while attracting and holding it, a chain base is provided with a number of magnet units for attracting the surface of a permanent magnet fixed to a thin ferromagnetic yoke with an epoxy resin or the like. 2. Description of the Related Art A chain with a magnet is known which is arranged on the outer peripheral side of a portion at a constant interval and conveys a magnetically attractable baggage without dropping off (see, for example, Patent Document 2).

  Furthermore, as a conventional transport chain, there is known a magnet type chain conveyor that transports a housing made of a magnetic material such as an iron drink can by attaching magnets attached to yokes on both sides along the longitudinal direction of the chain (for example, (See Patent Document 3).

JP 2004-262600 A (column 6, FIG. 1) JP-A-9-275011 (page 8, FIG. 8) JP-A-8-310384 (third column, FIG. 10)

  However, since the conventional conveyor belt 500 is formed of a synthetic resin in which the link module 510 on which the transported article W is mounted on the transport surface 510a exhibits a self-lubricating property, as shown in FIG. When the component force in the inclined direction acting on the transported article W in the state exceeds the frictional force, or a slippery liquid such as soapy water or lubricating oil adheres to the link module 510 and the transport surface 510a of the link module 510 becomes When it is too slippery, there is a problem that the transported article W cannot be surely transported due to unexpectedly falling or sliding down on the transport surface 510a due to transport impact or the like.

Further, in the conventional chain with magnets, a large number of magnet units for attracting are arranged on the outer peripheral surface of the chain base, so that the radius that bends in a direction opposite to the so-called “back bend radius” on the conveying surface side. As a result, even if an intermediate roller such as an idle roller for absorbing chain elongation is used on the return side of the chain, sufficient talmi cannot be secured, and the maintenance burden is required to eliminate chain elongation. If the frequency is increased and it is left as it is, there is a problem that the chain with magnet is caught in the drive sprocket and the chain is cut.
Moreover, the conventional chain with magnets covers the surface of the permanent magnet that is fixed to the ferromagnetic yoke by melting epoxy resin or the like at a high temperature, so that the permanent magnet is exposed to the high temperature resin temperature. Since the magnetic force of the magnet cannot be reduced and sufficient adsorption holding power cannot be exerted, and the magnet unit for adsorption adheres the permanent magnet to the thin ferromagnetic yoke with adhesive, The adhesion with the ferromagnetic yoke peels off, and the permanent magnet falls off or is lost, which causes a problem that the conveyed article cannot be stably held by suction.

  Furthermore, since conventional magnet chain conveyors expose the magnets mounted on the yokes on both sides, the magnets can be accidentally dropped or damaged due to transport impacts, etc., and stably attract the transported articles. There is a problem that it cannot be held, or that magnet fragments are scattered in the transfer area, causing many problems in the transfer operation.

  Therefore, the present invention solves the conventional problem, that is, the object of the present invention is to securely place the magnet piece for attracting and holding the transported article in the link module without changing the external dimension of the link module. Even if there is vibration or impact in the vertical direction of the chain during assembly and conveyance of the article, the magnet piece is prevented from falling off, and even if the conveyance surface is inclined or mounted easily, it is sufficiently held by suction. Delivers a powerful and reliable transport of transported articles, and realizes a smooth drive transport that secures sufficient tarnish on the chain return side and provides a simple transport chain for magnet maintenance and maintenance. That is.

  According to a first aspect of the present invention, there is provided a pin insertion in which a synthetic resin link module having a conveyance surface on which a conveyance article is mounted and a hinge portion protruding in front of and behind the conveyance surface is formed on the hinge portion. In the transport chain formed by connecting a large number of the connection pins in the longitudinal direction of the chain using connection pins that pass through the holes, the magnet pieces that attract and hold the transported article with magnetic force are housed in a magnet housing slider made of synthetic resin, The magnet housing slider is removably stored in a pair of left and right slider elongated holes provided in the chain width direction from the link side surface of the link module, thereby solving the aforementioned problems.

  According to a second aspect of the present invention, in addition to the configuration according to the first aspect, the magnet accommodating slider includes a magnet accommodating insertion tip section defined by a side wall that surrounds and positions the magnet piece and the magnet accommodating slider. The above-described problem is further solved by providing an insertion base end portion composed of at least a flexible bottom plate formed continuously at the insertion tip portion.

  According to a third aspect of the present invention, in addition to the configuration according to the second aspect, the link module includes a slider operation hole that is drilled from both end portions on the back surface of the link module and communicates with the horizontal elongated hole for the slider. In addition, the back surface protrusion provided on the insertion base end of the magnet housing slider is engaged with the slider operation hole so as to be freely engageable, thereby further solving the above-described problem. .

  According to a fourth aspect of the present invention, in addition to the configuration of the second or third aspect, the magnet accommodating slider includes a magnet take-out opening part in which a side wall of the magnet accommodating slider is partially cut away. Thus, the above-described problems are further solved.

  According to a fifth aspect of the present invention, in addition to the structure according to any one of the first to fourth aspects, the hinge portion of the link module is adjacent to the longitudinal direction of the chain of the link module. And the above-described problems are further solved by being connected to each other via a connecting pin.

  According to the transport chain of the present invention, the pin insertion hole formed in the hinge portion of the synthetic resin link module having the transport surface on which the transported article is mounted and the hinge portions protruding in front of and behind the transport surface, respectively. By connecting a plurality of connecting pins in the longitudinal direction of the chain using connecting pins that pass through, not only can the transported article be horizontally transported in a state of being mounted on the transport surface, but the following apparatus configuration is unique to the present invention. Such effects can be achieved.

  That is, according to the transport chain according to claim 1, the magnet piece for attracting and holding the transported article by magnetic force is housed in the magnet housing slider made of synthetic resin, and the magnet housing slider is the link side surface of the link module. Since the magnet piece is embedded in the link module by being detachably stored in the pair of left and right slider long holes provided in the chain width direction from the magnet, the magnet piece that holds the conveyed article by suction Is securely incorporated into the link module without changing the external dimensions of the link module, and even when vibration or impact in the vertical direction of the chain occurs during article conveyance, the magnet piece is reliably prevented from falling off and the article to be conveyed is It can be mounted stably, and the magnet piece fitted in the magnet housing slider ensures that the transported article on the transport surface For example, when the component force in the slant direction acting on the conveyed article in the inclined conveyance state exceeds the frictional force, or a slippery liquid such as soapy water or lubricating oil adheres to the link module and is linked. Even when the transport surface of the module is excessively slippery, the transported article can be transported stably without slipping on the transport surface.

  According to the transport chain according to claim 2, in addition to the effect produced by the transport chain according to claim 1, the magnet housing insertion distal end section defined by the side wall in which the magnet housing slider surrounds and locates the magnet piece. By providing an insertion base end portion composed of at least a flexible bottom plate continuously formed at the magnet accommodation insertion distal end portion, the side wall of the magnet accommodation insertion distal end portion is a magnet piece even if conveyance vibration occurs during article transportation. The magnet piece is protected from inadvertent breakage due to contact with transported goods, peripheral devices, etc., and when inserting the magnet piece, the insertion piece is pushed and pulled to remove the magnet piece. Since the magnet pieces are accommodated without heating, it is possible to prevent thermal demagnetization of the magnet pieces, which tends to occur in the conventional chain with magnets, and to exhibit a sufficient attracting and holding force for the conveyed product.

  According to the transport chain of the third aspect, in addition to the effect produced by the transport chain of the second aspect, the link module is formed for drilling from both sides of the back surface of the link module and communicates with the horizontal elongated hole for the slider. It has a hole, and the back projection provided at the insertion base end of the magnet housing slider is engaged with the slider operation hole so that it can be locked. With the release jig such as the release pin inserted, the back projection of the magnet housing slider is pressed toward the conveying surface, and the insertion base end composed of the flexible bottom plate is bent to engage the back projection. Since it becomes possible to release the stop state, it is possible to easily attach and detach the magnet piece.

  According to the transport chain of claim 4, in addition to the effect produced by the transport chain of claim 2 or claim 3, the magnet takeout opening in which the magnet containment slider partially cuts out the side wall of the magnet containment slider. Since the magnet piece can be easily picked out from the magnet take-out opening of the magnet housing slider during the magnet maintenance and maintenance work, the attachment and detachment of the magnet piece can be achieved more easily. be able to.

  According to the conveyance chain which concerns on Claim 5, in addition to the effect which the conveyance chain in any one of Claim 1 thru | or 4 show | plays, the link module with which the hinge part of a link module adjoins the chain longitudinal direction of a link module In the hinge section between adjacent link modules, a continuous conveyance surface is formed in the chain longitudinal direction. In addition to ensuring a stable mounting state, smooth transfer of the transported article to the transport surface is achieved at the loading / unloading position, and the hinge area between adjacent link modules is opposite to the transport surface side called the “back bend radius”. Idler roller to absorb chain elongation on the chain return side to reduce the radius of bending in the direction Which intermediate rollers can be achieved sufficiently smooth drive conveyor which ensures the slack using.

The schematic diagram which shows the usage condition of the conveyance chain which is one Example of this invention. The enlarged view of A part shown in FIG. The perspective view of the conveyance chain seen from the viewpoint X shown in FIG. The assembly exploded view of the conveyance chain shown in FIG. The perspective view of the slider for magnet accommodation. The perspective view of the slider for magnet accommodation seen from the viewpoint Y shown in FIG. The front view of the conveyance chain shown in FIG. The figure which shows the state in which the slider for magnet accommodation is stored. The figure which shows the state in which the slider for magnet accommodation was stored. The figure which shows the state which made the cancellation | release jig | tool contact the back surface projection part of the slider for magnet accommodation. The figure which shows the state which pushed up the back surface projection part of the slider for magnet accommodation with the cancellation | release jig. The operation | movement figure of the conveyance chain shown in FIG. The usage aspect figure of the conventional conveyor belt, and its one part enlarged view. FIG. 10 is an operation diagram of the transport chain shown in FIG. 9.

  The present invention relates to a connecting pin for inserting a synthetic resin link module having a conveyance surface on which a conveyance article is mounted and a hinge part protruding from the front and rear of the conveyance surface into a pin insertion hole formed in the hinge part. In the transport chain formed by connecting a large number in the longitudinal direction of the chain, magnet pieces for attracting and holding transported articles by magnetic force are housed in a magnet housing slider made of synthetic resin, and the magnet housing slider is connected to the link module. Removably housed in a pair of left and right slider horizontal holes provided in the chain width direction from the side of the link, the magnet piece that attracts and holds transported articles can be securely inserted into the link module without changing the external dimensions of the link module. Even if there is vibration or impact in the vertical direction of the chain during assembly and conveyance of the goods, the conveyance surface is reliably prevented from falling off the magnet pieces. Even in an inclined conveyance state or a slippery mounting state, it exhibits sufficient suction holding force to convey conveyed articles reliably and stably, and realizes smooth drive conveyance that secures sufficient tarnish on the chain return side If the magnet maintenance work is also simple, any specific embodiment may be used.

  First, the specific material of the link module and the magnet housing slider in the transport chain of the present invention may be any synthetic resin with good mechanical properties and molding accuracy. For example, a polyamide resin, Any of polyester resins, polyacrylic resins, polyacetal resins, polyvinyl chloride resins, polystyrene resins and the like can be used.

  As for the overall shape of the link module described above, a conveyance surface for carrying a conveyance article and a hinge portion protruding in front of and behind the conveyance surface, respectively, and a connecting pin is inserted into a pin insertion hole formed in the hinge portion. As long as it has a shape that allows a large number of links to be connected in the longitudinal direction of the chain, the arrangement of the hinges in the link module is at least two front hinges and one rear hinge. For example, it may be provided with four front hinge portions at the front and three rear hinge portions at the rear.

  Furthermore, as for the specific shape of the slider long slot drilled in the link module, it is sufficient if the slider for storing the magnet is stored so as to be detachable in the chain width direction from the link side surface of the link module. Regarding the specific shape of the operation hole, the release pin etc. inserted through the slider operation hole at the time of magnet maintenance work are communicated with the slider long holes drilled from both ends of the back side of the link module. If it can release the locking state of the back surface protrusion by bending the insertion base end composed of the flexible bottom plate by pressing the back surface protrusion of the magnet housing slider toward the transport surface side with a tool, It does not matter what the shape is.

In addition, regarding the specific shape of the magnet housing slider, a magnet housing insertion tip section defined by a side wall surrounding and positioning the magnet piece and at least a flexible bottom plate continuously formed on the magnet housing insertion tip section As long as the side wall of the magnet housing insertion distal end portion is configured to securely position and accommodate the magnet piece, it may have any shape, such as a drawer-shaped one or a box-shaped one. Also good.
Furthermore, regarding the specific shape of the magnet take-out opening provided on the magnet housing slider, it is easy to easily pick out the magnet piece from the magnet take-out opening of the magnet housing slider during the magnet maintenance work. As long as it has a shape, any opening shape can be used.

  Furthermore, the specific arrangement form of the magnet housing slider in the longitudinal direction of the chain may be sequentially arranged one-to-one with respect to the link module, or may be arranged intermittently. The arrangement form is preferably selected as appropriate depending on the size of the conveyed article, the conveyance form, the required magnetic attraction force, and the like.

  The specific material of the magnet piece used in the transport chain of the present invention may be a rare earth magnet, a ferrite magnet, or the like as long as it is a permanent magnet that can secure the magnetic force necessary to attract and hold the transported article. A neodymium magnet that has a high residual magnetic flux density and a high holding force and is susceptible to temperature changes can also be used. If the size and shape of the magnet piece can be accommodated in a magnet accommodating slider, a rectangular parallelepiped shape can be used. It may be anything such as a rod-like one or several plate-like ones.

  In addition, the specific material of the connecting pin used in the transport chain of the present invention may be any of steel, aluminum, and synthetic resin.

  Furthermore, the specific usage pattern of the transport chain of the present invention can be used not only for a transport line for horizontally transporting a transported article, but also for a transport line for tilting transport including a transport line for horizontal transport.

  The transported article applicable to the transport chain of the present invention may be any article. However, in order to transport the transported article even when the transport surface is inclined or mounted in a slippery state, a magnetic force is required. Needless to say, it is a transported article that can be adsorbed by a magnetic field, or a transported article accommodated in a transport container that can be attracted by magnetic force.

Below, the conveyance chain which is one Example of this invention is demonstrated based on drawing.
Here, FIG. 1 is a schematic diagram showing a usage mode of a conveyance chain according to an embodiment of the present invention, FIG. 2 is an enlarged view of a portion A shown in FIG. 1, and FIG. FIG. 4 is an exploded view of the transport chain shown in FIG. 2, FIG. 5 is a perspective view of the magnet storage slider, and FIG. 7 is a perspective view of the slider for storing the magnet viewed from the viewpoint Y shown in FIG. 5, FIG. 7 is a front view of the conveyance chain shown in FIG. 4, and FIG. 8 shows that the slider for storing the magnet is stored in the oblong hole for the slider. FIG. 9 is a diagram showing a state in which the slider for storing the magnet is stored in the oblong hole for the slider, and FIG. FIG. 11 is a diagram showing a state of contact, and FIG. 12 is a view showing a state in which the rear surface protruding portion of the slider is pushed up, FIG. 12 is an operation diagram of the conveying chain shown in FIG. 1, and FIG. 13 is a usage diagram of a conventional conveyor belt and a partially enlarged view thereof. FIG. 14 is an operation diagram of the transport chain shown in FIG.

  First, as shown in FIG. 1, the transport chain 100 according to an embodiment of the present invention is arranged in parallel in the line width direction of the transport line and is long in the transport line width direction, particularly in the transport line width direction. At least an inclined conveyance article W made of a product is conveyed.

That is, as shown in FIG. 2, the transport chain 100 of the present embodiment provided in each transport line includes a transport surface 110a on which the transported article W is mounted, and hinge portions 111 that are provided in front of and behind the transport surface 110a. 4 are connected endlessly in the longitudinal direction of the chain using connecting pins 120 that pass through the pin insertion holes 112 formed in the hinge portion 111, as shown in FIG. The magnet piece 130 for attracting and holding the transported article W by magnetic force is accommodated in a magnet housing slider 140 made of synthetic resin, and this magnet housing slider 140 is provided in the chain width direction from the link side surface 110b of the link module 110. The pair of left and right slider elongated holes 113 are removably stored.
Thereby, the magnet piece 130 is embedded in the link module 110, and the magnet piece 130 fitted in the magnet accommodating slider 140 reliably holds the conveyed article W on the conveying surface 110a by magnetic force.

As shown in FIG. 4, the above-described hinge portions 111 projecting at four positions on the transport surface 110 a of the link module 110, that is, the front hinge portions 111 a are adjacent to each other in the chain longitudinal direction of the link module 110. The hinges 111 projecting at three locations on the rear side of the transport surface 110a, that is, the rear hinges 111b are opposed to each other in an offset state and are connected to each other via the connection pins 120 in the form of fingers.
As a result, a conveying surface 110a continuous in the chain longitudinal direction is formed even in the hinge region between the adjacent link modules 110 and 110, and the hinge region between the adjacent link modules 110 and 110 is referred to as a “back bend radius”. The radius of curvature in the direction opposite to the conveying surface 110a side is reduced.

  Furthermore, as shown in FIG. 4, the front pin insertion hole 112a formed in the front hinge portion 111a of the link module 110 has a D-shaped hole shape as a whole, which is composed of a front flat surface in the longitudinal direction of the chain and a rear curved surface. The rear pin insertion hole 112b formed in the rear hinge part 111b of the link module 110 has a hole shape with a circular cross section.

On the other hand, the connecting pin 120 for connecting the link modules 110 and 110 to each other has a D-shaped pin cross section composed of a front flat surface and a rear curved surface in the longitudinal direction of the chain as shown in FIG. is doing.
The connection pin 120 is inserted with the front flat surface of the connection pin 120 and the front flat surface of the front pin insertion hole 112a facing each other, and is prevented from rotating with respect to the front pin insertion hole 112a of the link module 110. In addition, the link module 110 is loosely fitted in the rear pin insertion hole 112b.

Further, the connecting pin 120 has a protrusion 121 for locking and positioning in the chain width direction in cooperation with the hinge side surface 111 c of the hinge portion 111 protruding from the link module 110. It is formed on the surface.
As a result, the protrusion 121 of the connecting pin 120 is locked to the hinge side surface 111c, and the connecting pin 120 is reliably positioned and fixed to the link module 110, thereby preventing the connecting pin 120 from being accidentally dropped off.

  Moreover, the magnet piece 130 is formed in a rectangular parallelepiped shape exhibiting a square ferrite structure that attracts and holds the transported article W by magnetic force.

  Next, a specific configuration of the magnet storage slider 140 and the link module 110 storing the magnet storage slider, which are the most characteristic features of the transport chain 100 according to the present embodiment, are shown in FIGS. 2 and 5 to 7. Will be described in detail.

First, as shown in FIG. 5 and FIG. 6, the magnet storage slider 140 includes a magnet storage insertion tip 141 that is partitioned by a side wall 141 a that surrounds and positions the magnet piece 130, and the magnet storage insertion tip 141. It has an insertion base end 142 formed of at least a flexible bottom plate 142a formed continuously.
As a result, even if conveyance vibration occurs during article conveyance, the side wall 141a of the magnet accommodating insertion distal end 141 reliably positions and accommodates the magnet piece 130 and pushes and pulls the insertion base end 142 when the magnet piece 130 is attached. Thus, the magnet piece 130 is accommodated without heating the magnet piece 130.
Reference numeral 142b shown in FIG. 5 is a back surface protrusion provided on the insertion base end 142 of the magnet storage slider 140, and reference numeral 143 indicates the magnet storage insertion tip 141 and the insertion base end 142 described above. It is a partition wall that partitions and positions the magnet piece 130 within the magnet storage insertion tip portion 141.

The magnet housing slider 140 includes a magnet takeout opening 141b in which a side wall 141a of the magnet housing slider 140 is partially cut away.
Thereby, it is possible to easily pick out the magnet piece 130 from the magnet take-out opening 141b of the magnet housing slider 140 during the magnet maintenance work.

On the other hand, as shown in FIG. 7, the link module 110 is drilled from the back side end portions 110 c of the link module 110 and communicates with the slider long slot 113, and the back projection 142 b of the magnet housing slider 140 is engaged. A slider operation hole 114 is provided for engaging freely.
In addition, the bottom surface of the magnet piece 130 and the magnet storage slider 140 are not in contact with each other in the magnet take-out opening 141b, and a gap is partially formed between the bottom surface of the magnet piece 130 and the magnet storage slider 140, so-called A clearance is provided, and the flexible bottom plate 142a of the magnet housing slider 140 is more easily bent.
This allows the back projection 142b of the magnet housing slider 140 to be pressed toward the transport surface 110a side with a release jig D such as a screwdriver or a release pin inserted from the slider operation hole 114 during magnet maintenance. It is possible to release the locking state of the rear surface protrusion 142b by bending the insertion base end 142 formed of the flexible bottom plate 142a.

Next, the operation of inserting the magnet storage slider 140 into the slider elongated hole 113 will be described in detail with reference to FIGS. 8 to 9. The magnet storage slider 140 storing the magnet segment 130 is linked to the link module 110. The slider is inserted into a pair of left and right slider elongated holes 113 perpendicular to the side surface 110b.
As shown in FIG. 8, after inserting the back surface protrusion 142b of the magnet storage slider 140 until it contacts the link side surface 110b, the insertion base end 142 formed of the flexible bottom plate 142a is bent vertically upward. As a result, the rear surface protruding portion 142b is inserted into the slider elongated hole 113.
After that, as shown in FIG. 9, the magnet storage slider 140 is further inserted while the insertion base end 142 of the magnet storage slider 140 is bent, and the rear surface protrusion 142b is engaged with the slider operation hole 114. Thus, the magnet storage slider 140 is stored in the slider elongated hole 114.

On the other hand, the operation of removing the magnet storage slider 140 from the slider elongated hole 114 will be described in detail with reference to FIGS. 10 and 11. As shown in FIG. 10, the tip of the release jig D is operated by the slider of the link module 110. It inserts in the hole 114, and presses the back surface projection part 142b of the slider 140 for magnet accommodation with the front-end | tip of this cancellation | release jig | tool D. FIG.
Thereafter, as shown in FIG. 11, the flexible bottom plate 142a is bent toward the conveying surface 110a side by the pressing force received from the release jig D, and the locked state between the rear surface protrusion 142b and the slider operation hole 114 is released. As a result, the magnet housing slider 140 can be removed from the slider oblong hole 114.

Next, the usage mode using the conveyance chain 100 of the present embodiment will be described in more detail with reference to FIGS. 1 and 12.
That is, the transport chains 100 of this embodiment provided on both sides of the transport line are arranged in parallel in the line width direction of the transport line as shown in FIG. 1, and are driven by the drive side sprocket S1 and the driven as shown in FIG. By being driven between the side sprocket S2 and being driven, the conveyed article W is conveyed in an inclined manner.

  In the usage mode of the present embodiment, as shown in FIG. 1, three transport chains 100 are arranged in parallel in the line width direction of the transport line, but a magnet is provided between the two transport chains 100. A conventional conveyor belt 500 in which a number of link modules that do not have are connected by connecting pins may be interposed.

Further, reference numeral 115 shown in FIG. 7 protrudes from the back surface of the link module 110 in order to restrict the positional deviation in the chain width direction when the transport chain 100 of this embodiment is engaged with the driving side sprocket S1 and the driven side sprocket S2. It is the rib for guides provided.
A reference symbol G shown in FIG. 12 is a guide rail provided along the conveyance line for traveling and guiding the conveyance chain 100 of this embodiment, and a symbol R is a chain extension of the conveyance chain 100 of this embodiment. It is an intermediate roller made up of idler rollers installed on the return side of the transport chain 100 in order to secure the warp that absorbs the ink.

  In the thus obtained transport chain 100 of the present embodiment, the magnet piece 130 for attracting and holding the transported article W by magnetic force is housed in the magnet housing slider 140 made of synthetic resin, and the magnet housing slider 140. Are detachably stored in the pair of left and right slider elongated holes 113 provided in the chain width direction from the link side surface 110b of the link module 110, so that the magnet piece 130 for attracting and holding the conveyed article W is attached to the link module 110. It is securely incorporated into the link module 110 without changing the external dimensions of the magnet, and even when vibrations / impacts in the vertical direction of the chain occur during article transportation, the magnet piece 130 is reliably prevented from falling off and the conveyed article W is removed. Mounted stably, for example, the component force in the inclined direction acting on the conveyed article W in the inclined conveyance state exceeds the frictional force As shown in FIG. 12, even when a slippery liquid such as soapy water or lubricating oil adheres to the link module 110 and the transport surface 110a of the link module 110 becomes excessively slippery. The transport article W can be stably transported without slipping on the transport surface.

  The magnet accommodating slider 140 surrounds the magnet piece 130 and is positioned at the side wall 141a and is partitioned by a magnet accommodating insertion tip 141, and at least the flexible bottom plate 142a continuously formed on the magnet accommodating insertion tip 141. By including the insertion base end portion 142 configured, the magnet piece 130 is protected from inadvertent damage due to contact with the transported article W, peripheral equipment, and the like, and is inserted when the magnet piece 130 is mounted. Since the magnet piece 130 is accommodated without pushing the base end portion 142 and heating the magnet piece 130, heat demagnetization of the magnet piece 130, which tends to occur in a conventional chain with magnets, can be prevented and sufficient for the conveyed article W. Adsorption holding power can be demonstrated.

  In addition, the link module 110 is provided with a slider operation hole 114 which is drilled from the back side end portions 110 c of the link module 110 and communicates with the slider long slot 113, and the insertion base end 142 of the magnet housing slider 140. Since the rear surface protrusion 142b provided on the slider is engaged with the slider operation hole 114 so as to be engageable with each other, the attachment and detachment of the magnet piece 130 can be easily achieved.

DESCRIPTION OF SYMBOLS 100 ... Conveyance chain 110 ... Link module 110a ... Conveyance surface 110b ... Link side surface 110c ... Back side both ends part 111 ... Hinge part 111a ... Front hinge part 111b ... Back Hinge portion 111c ... Hinge side surface 112 ... Pin insertion hole 112a ... Front pin insertion hole 112b ... Rear pin insertion hole 113 ... Slider oblong hole 114 ... Slider operation hole 115 ... · Rib for guide 120 ··· Connection pin 121 ··· Projection portion 130 ··· Magnet piece 140 · · · Magnet accommodating slider 141 · · · Magnet accommodating insertion tip portion 141a · · · Side wall 141b · · · Magnet removal Opening part 142 ... Insertion base end part 142a ... Flexible bottom plate 142b ... Back surface projection part 1 DESCRIPTION OF SYMBOLS 3 ... Partition wall 500 ... Conveyor belt 510 ... Link module 510a ... Conveyance surface 512 ... Hinge part 514 ... Pin insertion hole 520 ... Connection pin D ... Release jig | tool (driver)
G ... Guide rail R ... Intermediate roller S1 ... Drive side sprocket S2 ... Driven side sprocket W ... Conveyed goods

Claims (5)

Using a connecting pin for inserting a synthetic resin link module having a conveying surface on which a conveying article is mounted and a hinge portion protruding in front of and behind the conveying surface into a pin insertion hole formed in the hinge portion. In the transport chain formed by connecting many in the longitudinal direction of the chain,
While the magnet piece that attracts and holds the transported article by magnetic force is housed in a synthetic resin magnet housing slider,
The transport chain, wherein the magnet housing slider is removably stored in a pair of left and right slider elongated holes provided in the chain width direction from the link side surface of the link module.   The magnet housing slider comprises an insertion base comprising a magnet housing insertion tip section defined by a side wall surrounding and positioning the magnet piece, and at least a flexible bottom plate continuously formed on the magnet housing insertion tip section. The conveyance chain according to claim 1, further comprising an end portion. The link module is provided with a slider operation hole that is drilled from both sides of the back surface of the link module and communicates with the slider elongated hole;
The transport chain according to claim 2, wherein a back projection provided on an insertion base end of the magnet housing slider is engaged with the slider operation hole so as to be freely engageable.   4. The transport chain according to claim 2, wherein the magnet housing slider includes a magnet take-out opening portion in which a side wall of the magnet housing slider is partially cut out. 5.   The hinge part of the said link module is mutually connected with the hinge part of the link module adjacent to the chain longitudinal direction of the said link module via a connection pin. The transport chain described in 1.

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