JP3988025B2 - Buffer material feeding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shock-absorbing material feeding device that sequentially feeds shock-absorbing materials aligned in the vertical direction into a packaging member.
[0002]
[Prior art]
When packaging fresh foods such as vegetables, fruits and seafood, household appliances, or electronic parts, etc., in order to prevent damage due to impact during transportation, synthetic resin is placed in the packaging material such as cardboard boxes. A cushioning material made of foam or the like is packed. For example, in the case of fruits, the fruits are placed on a pallet in which a plurality of depressions of appropriate size are formed, a cushioning material is placed on the pallet, and the pallets on which the fruits are placed are stacked in a cardboard box. The
[0003]
[Problems to be solved by the invention]
However, many of the packing operations described above are performed manually. For example, since a lightweight and easily deformable material such as a cushioning material is difficult to handle with a machine, it is often put in a cardboard box by hand, which places a heavy burden on the operator.
[0004]
Even if an apparatus that automates the above work is used, for example, in the case of fresh food products, it is difficult to pack and store in large quantities because of the relationship with freshness, and therefore the quantity to be packed at a time is often small. Such a small amount of packaging requires a simple and compact device.
The present invention has been made in view of these points, and an object of the present invention is to provide a means for automating the feeding of a cushioning material into a packing member in a simple and space-saving manner.
[0005]
[Means for Solving the Problems]
The buffer material feeding device according to claim 1 of the present invention made to achieve the above object is a device for sequentially feeding the buffer materials aligned in the vertical direction into the packing member, and is aligned in the vertical direction. holds the shock absorber member, a supply mechanism that allowed to position the cushioning material of the uppermost end in the latching position, a suction mechanism for attracting and holding said engaging by suction the uppermost end of the cushioning material position, is held by suction The first conveying means for latching the buffer material, sliding the buffer material group to release the latch at the inherited position, and the top of the packing member to be latched and fed A transport mechanism comprising: a second transport means that moves to the release position ; and a latch release mechanism that releases the latch of the cushioning material above the packaging member and feeds the cushioning material into the packaging member; It comprises.
In the present invention, the cushioning material refers to a material that is packed in a packing member together with the product for the purpose of preventing damage, fixing the position, or keeping the temperature of the product to be packed.
[0006]
Further, according to the present invention (Claim 2), in the shock-absorbing material feeding apparatus according to Claim 1, the supply mechanism supports the currently-fed shock-absorbing material group so as to be movable up and down, and the uppermost end thereof. A first holding member for positioning the buffer material in the latching position, a holding member for holding the buffer material group to be fed next in the storage position, and the first supporting member in conjunction with the first supporting member; However, after all the shock-absorbing members that are carried are moved, the second carrying material that supports the shock-absorbing material group held by the holding members so as to move up and down and positions the uppermost shock-absorbing material at the latching position. And the first holding member has a new buffer material group held by the holding member again after all of the buffer material carried by the second carrying member has been moved. It is supported so that it can move up and down, and the first and second support members repeat a series of operations. More, and makes it possible to continuously supply the buffer material.
In the present invention, the cushioning material group refers to the whole of a predetermined amount of cushioning material arranged by stacking or the like.
[0008]
Further, according to the present invention (Claim 3 ), in the shock absorber feeding device according to Claim 1 or Claim 2, the transport mechanism protrudes obliquely forward with respect to the moving direction of the shock absorber. It has a needle-like hooking member. By the penetration of the needle-like hooking member, the buffer material is hooked so that it can be easily released.
[0009]
Further, the present invention (Claim 4 ) is the shock absorber feeding device according to Claim 3 , wherein the transport mechanism moves in the direction opposite to the hooking side of the buffering material hooked on the hooking member. It has a guide member supported along. Here, the latching side and the opposite side are, for example, when a needle-shaped latching member is inserted into the top surface of the sheet-like cushioning material and latches the cushioning material, the top surface of the cushioning material is the latching side. The lower surface side is the opposite side, that is, the side supported by the guide member.
[0010]
According to the present invention (Claim 5 ), in the shock absorber feeding device according to Claim 4 , the first transport unit and the second transport unit include the latch member and the guide member, respectively. The latching member of the second transporting unit is latched on the side opposite to the side on which the buffering member of the first transporting unit latches the cushioning material. The buffer member hooked on the first and second guides is moved together with the guide member of the second transport means in a direction in which the latch member of the first transport main stage is unlocked.
[0011]
Further, according to the present invention (Claim 6 ), in the shock absorber feeding device according to any one of Claims 3 to 5 , the latch release mechanism is provided with a pressing member provided to be able to advance and retract downward from the release position. The transport mechanism is configured to position the cushioning material in the release position with the upper side of the cushioning material latched, and the push-down member pushes the cushioning material downward to latch the transport mechanism. Is to cancel.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing a schematic configuration of a shock absorber feeding apparatus 100 according to the present embodiment. As shown in the figure, the shock absorber feeding apparatus 100 holds the shock absorbers arranged in the vertical direction, sucks the shock absorbers, and a supply mechanism 101 that positions the shock absorber at the uppermost end. A suction mechanism 102 that sucks and holds the cushioning material at the latching position, a transport mechanism 103 that latches and moves the cushioning material upward, and a latch release mechanism 104 that unlocks the cushioning material above the packaging member. It comprises.
[0013]
Although not shown in detail in the figure, the supply mechanism 101, the suction mechanism 102, the transport mechanism 103, and the latch release mechanism 104 are fixed at appropriate positions of the main body frame 1, and the buffer material feeding device Reference numeral 100 also includes a drive source such as a motor required for the operation of each mechanism, a suction pump, an air pump, and the like.
Further, below the latch release mechanism 104, a transport device such as a conveyor for transporting a packing member such as cardboard is installed.
[0014]
FIG. 2 shows an example of the cushioning material fed into the packing member by the cushioning material feeding device 100. As shown in the figure, the cushioning material 2 is made of a synthetic resin foam such as urethane foam. A rod-shaped body is combined in a lattice shape, and is a sheet shape cut into a rectangle. A plurality of the buffer materials 2 stacked as shown by a one-dot chain line in FIG. 2 are loaded into the supply mechanism 101 of the buffer material feeding apparatus 100 as a buffer material group.
[0015]
FIG. 3 shows a schematic configuration of the right side surface of the shock-absorbing material feeding apparatus 100 and mainly shows the supply mechanism 101. The supply mechanism 101 holds the lifter 10 (first support member) that supports the buffer material group 3 that is currently fed in a vertically movable manner, and the buffer material group 4 that is to be fed next in the storage position A. It comprises a member 12 and a lifter 13 that supports the buffer material group 4 so as to be movable up and down.
In FIG. 3, the buffer material groups 3 and 4 are indicated by two-dot chain lines for convenience of explanation.
[0016]
The lifters 10 and 13 are made of a pair of wings that support the bottoms of the buffer material groups 3 and 4 from both sides. The lifters 10 and 13 are moved up and down by chain drive, and the chains 14L and 14R and the sprocket wheel 15L are symmetrically arranged in order to move the pair of wing-like bodies constituting the lifters 10 and 13 up and down synchronously. , 15R are provided. In FIGS. 1 and 3, the chains 14L and 14R are indicated by a one-dot chain line.
[0017]
The details of the left chain 14L and the sprocket wheel 15L in FIG. 3 will be described in detail. As shown in FIG. 1, the sprocket wheel 15L is fixed to both ends of the shaft 16L, and the driving force is transmitted to the shaft 16L. As a result, the sprocket wheel 15L rotates. A pair of sprocket wheels 15L configured as described above are arranged in the vertical direction, and a chain 14L is provided between the sprocket wheels 15L. The wings of the lifters 10 and 13 are fixed to the chain 14L so as to protrude outward. As shown in FIG. 3, the wings of the lifters 10 and 13 are at positions separated by a half circumference of the chain 14 </ b> L, that is, rotationally symmetric positions of the chain 14 </ b> L. The right chain 14R and the sprocket wheel 15R are configured in the same manner, and the lifters 10 and 13 support the buffer material group so as to be movable up and down by operating in synchronization with each other.
[0018]
Further, the holding member 12 is a flat plate-like member, and is fixed at a height position similar to that of the lower sprocket wheels 15L and 15R. When the buffer material group 4 to be stored is placed on the holding member 12, the height of the buffer material group 4 that can be stored is determined by the distance between the axes of the sprocket wheels 15L and 15R. That is, when the remaining amount of the buffer material group 3 that is currently carried by the lifter 10 reaches a predetermined amount, the buffer material group 4 to be fed next is loaded into the storage position A, that is, the holding member 12. If placed on the holding member 12, the height of the buffer material group 4 that can be placed on the holding member 12 is from the holding member 12 to the lifter 10. Since the holding member 12 is fixed at the same height as the lower sprocket wheels 15L and 15R as described above, the holding member 12 can be stored if the distance between the axes of the sprocket wheels 15L and 15R is increased. The amount of cushioning material also increases.
[0019]
As shown in FIGS. 1 and 3, flat guide plates 17 are provided between the sprocket wheels 15L and 15R, respectively. The guide plate 17 is fixed to the main body frame 1 at a position facing the currently inserted cushioning material group 3 and the cushioning material group 4 loaded in the storage position A. The cushioning material group 3 4 is prevented from collapsing.
[0020]
As shown in FIGS. 1 and 3, the suction mechanism 102 includes a pair of vacuum tubes 20 provided so that the tip thereof is positioned at the latching position B, which is not shown in the drawings. The vacuum tube 20 communicates with a suction pump and sucks the buffer material 2 by suction from the tip thereof. Moreover, the buffer material 2 adsorbed at one end is easily released by suction when the vacuum tube 20 stops the suction.
[0021]
As shown in FIG. 1, the transport mechanism 103 latches the buffer material 2 sucked and held at the latching position B by the suction mechanism 102 and slides it in a substantially horizontal direction. A slide transport mechanism (first transport mechanism) 30 to be released, and a lower transport mechanism (second transport mechanism) 31 that latches the slidable cushioning material 2 and moves it downward to be positioned at the release position D. It is provided.
[0022]
As shown in FIG. 1, the slide transport mechanism 30 is provided from the latching position B to above the transfer position C, and protrudes obliquely forward with respect to the moving direction of the cushioning material 2. In addition, the latch member 32 has a needle-like latch member 32, and the latch member 32 is chain-driven in the horizontal direction. Specifically, as shown in FIGS. 1 and 3, sprocket wheels 33 are respectively provided in the vicinity of the latching position B and in the vicinity of the inheritance position C so that the latching member 32 passes through the latching position B and the inheritance position C. A chain 34 is wound around the sprocket wheel 33. A rod-shaped guide (guide member) 35 is provided below the sprocket wheel 33.
1 and 3, the chain 33 is indicated by a one-dot chain line.
[0023]
As shown in FIG. 3, the sprocket wheel 33 has gears fixed to both ends of a shaft 33a, and a driving force is transmitted to the shaft 33a from a driving source (not shown) so that the sprocket wheel 33 rotates. It has become. As shown in FIG. 1, a pair of sprocket wheels 33 configured in this manner are arranged in the horizontal direction, and two chains 34 are respectively wound around the sprocket wheels 33. The latch members 32 are fixed to the chains 34 via appropriate attachments.
[0024]
On the other hand, as shown in FIG. 1, the guide 35 is provided substantially in parallel with the chain 34 from the vicinity of the latching position B to the transfer position C, and is bent slightly downward in the vicinity of the transfer position C. As shown in FIG. 1, a pair of guides 35 is provided corresponding to each of the latching members 32 fixed to each chain 34, and is fixed to the outside of each latching member 32 slightly. The vertical distance between the guide 35 and the hooking member 32 is slightly wider than the thickness of the buffer member 2.
Accordingly, the buffer member 2 can be slid from the latch position B to the transfer position C so that the latch member 32 latches the upper side of the buffer material 2 and the guide 35 supports the lower side of the buffer material 2. It has become.
[0025]
The lower transport mechanism 31 is provided in a space between the transfer position C and the release position D, and has a latch member 36 similar to the latch member 32. As shown in FIG. The latch member 36 is chain driven in the horizontal and vertical directions. Specifically, as shown in FIG. 1, a pair of sprocket wheels 37 are provided in parallel with the slide transport mechanism 30 in the vicinity of the transfer position C so that the hooking member 36 passes through the transfer position C and the open position D. In addition, a pair of sprocket wheels 37 is also provided near the release position D, and a chain 38 is wound around these four sprocket wheels 37. Further, on the outside of the sprocket wheel 37, a rod-shaped guide (guide member) 39 bent in a substantially U-shape is provided.
In the figure, the chain 38 is indicated by a one-dot chain line.
[0026]
Although not shown in the drawing, the sprocket wheel 37 is also fixed to both ends of the shaft, similarly to the sprocket wheel 33, and the driving force is transmitted from the driving source to the shaft so that the sprocket wheel 37 rotates. It is supposed to be. As shown in FIG. 1, four sprocket wheels 37 configured in this way are arranged on the top, bottom, left, and right, and two chains 38 are respectively wound around the sprocket wheels 37. The chain 38 is fixed with a latching member 36 via an appropriate attachment.
[0027]
On the other hand, as shown in FIG. 1, the guide 39 is provided substantially in parallel with the chain 38 from the transfer position C to the release position D, and is bent slightly upward in the vicinity of the transfer position C. Similarly to the guide 35, a pair of guides 39 are provided corresponding to the latching members 36 fixed to each chain 39, and are fixed to the outside of each latching member 36 slightly. Further, the distance between the guide 39 and the latching member 36 is slightly wider than the thickness of the buffer member 2 as described above.
As a result, the latching member 36 latches the buffer member 2 on the side opposite to the latching member 32, and the guide 39 supports the outside of the buffer material 2 to release the buffer member 2 from the inherited position C. It can move to position D.
[0028]
As shown in FIG. 1, the latch release mechanism 104 includes a pressing member 40 that can be moved forward and backward from the release position D, and an air cylinder 41 that moves the pressing member 40 forward and backward. is there. The pressing member 40 is formed by bending a pipe-like member to a degree slightly smaller than the plane of the cushioning material 2, and is fixed to the lower end of a rod 40 a slidably provided on the main body frame so as to move in the vertical direction. It is possible to advance and retreat. The push-down member 40 is accommodated between the two chains 38 of the lower transport mechanism 31 and does not come into contact with the chain 38 or the guide 39 during advance / retreat.
[0029]
Hereinafter, operation | movement of this buffer material feeding apparatus 100 is demonstrated.
First, the buffer material group 3 to be fed into the holding member 12 of the supply mechanism 101 is placed, and the lifter 10 is driven. As a result, as shown in FIG. 3, the buffer material group 3 in the storage position A is carried by the lifter 10. The lifter 10 is lifted in a state where the buffer material group 3 is supported, and the buffer material 2 at the uppermost end of the buffer material group 3 being held is positioned at the latching position B. Although not shown in the drawing, a detecting means such as a limiter or a sensor is provided at the latching position B, and the detecting means detects the uppermost cushioning material 2. Based on the detection signal of the detection means, the lifter 10 stops rising, and then slightly lowers from the latching position B.
[0030]
When the uppermost cushioning material 2 is positioned at the latching position B, the suctioning mechanism 102 sucks the cushioning material 2 with the vacuum pipe 20, so that the cushioning material 2 is latched as shown in FIG. 4. The side to be applied is attracted to the tip of the vacuum tube 20 and is lifted to the vicinity of the slide transport mechanism 30. In this way, the cushioning material 2 is sucked and held at the latching position B.
[0031]
Next, the latching member 32 of the slide transport mechanism 30 penetrates near the front upper side of the cushioning material 2 attracted and held at the latching position B and latches the cushioning material 2. Thereafter, the suction mechanism 102 stops the suction, the latch member 32 moves by the chain drive, and the cushioning material 2 slides on the guide 35. The lower transport mechanism 31 is driven in synchronism with the slide transport mechanism 30, and when the cushioning material 2 is slidingly moved, the hooking member 36 of the lower transport mechanism 31 is moved from the lower side of the cushioning material 2. It penetrates behind the position where the latching member 32 is latched. The cushioning material 2 further slides to the inherited position C while being held by the hooking member 32 and the hooking member 36.
[0032]
At the transfer position C, as shown by a dotted line in FIG. 4, the cushioning material 2 is hooked by the hooking member 32 and the hooking member 36 as described above, and is sandwiched between the guide 35 and the guide 39. Become. Further, when the latching member 32 and the latching member 36 are chain driven, the cushioning material 2 moves along the guide 39 together with the latching member 36. On the other hand, the latching member 32 moves upward along the sprocket wheel 33, but the cushioning material 2 is guided in the moving direction of the latching member 36 by the guide 39, so that the latching member 32 is separated from the cushioning material 2. It is pulled out and the latching by the latching member 32 is released. Thereafter, the cushioning material 2 moves to the release position D along the guide 39 together with the hooking member 36.
[0033]
As shown in FIG. 5, the cushioning material 2 positioned at the release position D is pressed to the packing member side, that is, the lower side by the pressing member 40 of the release mechanism 104. The cushioning material 2 is hooked on the hooking member 36 from the upper side and supported by the guide 39 from the lower side, but is elastically deformed by being pressed by the pressing member 40 in the vicinity of the center, and below the guide 39. At the same time, the latch member 36 is released and the latch member 36 is released and falls into the packaging member. In this way, the cushioning material 2 at the uppermost end is sent from the cushioning material group 3 to the packaging member.
[0034]
On the other hand, as shown in FIG. 3, the lifter 10 carries the buffer material group 3 that is currently fed, and the buffer material is sequentially fed, so that the position of the lifter 10 gradually rises to the vicinity of the latching position B. A space in which the buffer material group 4 to be fed next can be loaded is formed below, that is, in the supply position A. Therefore, if the remaining buffer material group 3 carried by the lifter 10 has such an amount as to form a space that can be loaded with the buffer material group 4 to be next fed into the supply position A, The material group 4 is loaded into the supply position A, that is, placed on the holding member 12. The buffer material group 4 can be loaded manually or automatically by a machine.
[0035]
As shown in FIG. 6, after all the cushioning material groups 3 carried by the lifter 10 are moved, the lifter 10 is lifted by the chain drive and is reversed along the upper sprocket wheels 15L and 15R. At the same time, the lifter 13 reverses along the lower sprocket wheels 15L, 15R, and lifts the cushioning material group 4 placed on the holding member 12, and latches the cushioning material 2 at the uppermost end. Position it at position B. Thereby, the buffer material 2 at the uppermost end is sent from the buffer material group 4 to the packing member. When the supply mechanism 101 repeats the series of operations described above, the buffer material 2 can be continuously supplied.
[0036]
In the shock absorber feeding device 100 according to the present embodiment, the lifters 10 and 13 and the retaining members 32 and 36 are moved by chain drive. However, for example, by other drive methods such as belt drive. It is also possible to move it.
[0037]
【The invention's effect】
As described above, according to the shock-absorbing material feeding apparatus according to the present invention, the supply mechanism that holds the shock-absorbing material aligned in the vertical direction and positions the uppermost shock-absorbing material at the latching position, A suction mechanism that sucks and holds the uppermost cushioning material at the latching position, a transport mechanism that latches the suctioned and held cushioning material and moves it above the packaging member, and a cushioning material above the packaging member And a latch release mechanism for releasing the latch and feeding the buffer material into the packaging member. Therefore, the device for automatically feeding the buffer material to the packaging member can be simplified and saves space. Can be realized. In addition, the transport mechanism latches the buffer material held by suction, first transport means that slides the buffer material from the buffer material group and releases the latch at the transfer position, and latches the buffer material that has been slid. And a second transfer means for moving the release member to a release position above the packing member to be fed, so that the buffer at the uppermost end of the aligned buffer material group can be transferred without transferring the packing member to a high position. The material can be easily moved to directly above the packaging member to be fed.
[0038]
Further, according to the present invention, the supply mechanism carries a buffer material group that is currently fed in such a manner that the buffer material group can move up and down, and the first carrying member that positions the buffer material at the uppermost end in a latching position; Next, the holding member that holds the buffer material group to be sent in the storage position and the first holding member are interlocked with each other, and after the first holding member has moved all of the buffer members that are carried, A first support member and a second support member, the second support member supporting the buffer material group held by the holding member so as to be movable up and down and positioning the buffer material at the uppermost end in the latching position. Since the members hold the buffer material group to be sent in order so that they can be moved up and down, it is possible to load the buffer material into the packing member continuously by sequentially loading a group of aligned buffer materials. It becomes.
[0040]
Further, according to the present invention, since the transport mechanism has the needle-like latching member that protrudes obliquely forward with respect to the moving direction of the cushioning material, the cushioning material can be latched with a simple structure. And release.
[0041]
Further, according to the present invention, since the transport mechanism has the guide member that supports the side opposite to the side of the cushioning material latched by the latching member along the movement direction, the movement of the latching member Accordingly, the cushioning material can be reliably moved.
[0042]
Further, according to the present invention, the latching member of the second transport unit latches the side opposite to the side on which the latching member of the first transport unit latches the buffer material, and the first transport unit Since the buffer member latched by the latch member is moved in the direction in which the latch of the latch member of the first transport main stage is released together with the guide member of the second transport means, it is simple. With the simple structure, the latch of the latch member of the first conveying means can be released at the inheritance position, and the cushioning material can be reliably inherited.
[0043]
Further, according to the present invention, the latch release mechanism includes a pressing member provided so as to be able to advance and retract downward from the release position, and the transfer mechanism holds the cushioning material in a state where the upper side of the cushioning material is latched. Since the push-down member is positioned at the release position and pushes down the cushioning material, the latch of the transport mechanism can be reliably released with a simple structure.
[Brief description of the drawings]
FIG. 1 is a front view showing a main configuration of a shock absorber feeding apparatus 100 according to an embodiment of the present invention.
FIG. 2 is a schematic perspective view showing an external appearance of the cushioning material 2. FIG.
FIG. 3 is a side view showing a main configuration of the buffer material feeding device 100. FIG.
FIG. 4 is an enlarged view showing a main configuration of the cushioning material feeding device 100 in the vicinity of the hooking position B and the transfer position C.
FIG. 5 is an enlarged view showing a main configuration of the buffer material feeding device 100 in the vicinity of the release position D;
FIG. 6 is a side view showing a state where the supply mechanism 101 carries a buffer material group to be fed next.
[Explanation of symbols]
100 Buffer material feeding device 101 Supply mechanism 102 Suction mechanism 103 Transport mechanism 104 Release mechanism 10 Lifter (first carrier member)
12 Holding member 13 Lifter (second supporting member)
2 Buffer 30 Slide transport mechanism (first transport mechanism)
31 Downward transport mechanism (second transport mechanism)
32, 36 Latching member 35, 39 Guide (guide member)
3 cushioning material group 40 pressing member

Claims (6)

A device that sequentially feeds cushioning materials aligned in the vertical direction into a packaging member,
A supply mechanism for holding the cushioning material aligned in the vertical direction and positioning the uppermost cushioning material at the latching position;
A suction mechanism for sucking and holding the uppermost cushioning material at the hooking position;
The first transfer means for hooking the buffer material held by suction and sliding it from the buffer material group to release the hook at the inherited position, and the buffer material slide-moved should be hooked and sent A transport mechanism comprising a second transport means for moving to a release position above the packing member;
A cushioning material feeding device comprising: a latch release mechanism for releasing the latching of the cushioning material above the packaging member and feeding the cushioning material into the packaging member. The supply mechanism carries a buffer material group that is currently fed so as to be movable up and down, and a first support member that positions the uppermost buffer material at a latching position;
A holding member for holding the buffer material group to be sent next in the storage position;
In conjunction with the first carrying member, the first carrying member carries the cushioning material group held by the holding member so as to be movable up and down after all the cushioning members carried are moved. A second support member that positions the upper end cushioning material at the latching position;
The first holding member carries again a new buffer material group held by the holding member so as to be movable up and down again after all of the cushioning material carried by the second carrying member has been moved. The shock absorbing material feeding apparatus according to claim 1, wherein the shock absorbing material and the second supporting member repeat a series of operations to enable continuous supply of the shock absorbing material. The shock absorber according to claim 1 or 2, wherein the transport mechanism has a needle-like hooking member that projects obliquely forward with respect to the moving direction of the shock absorber. Material feeding device. The said conveyance mechanism has a guide member which supports the opposite side to the latching side of the buffering material latched by the said latching member along a moving direction, The buffering of Claim 3 characterized by the above-mentioned. Material feeding device. The first transport unit and the second transport unit include the latch member and the guide member, respectively, and the latch member of the second transport unit is the latch member of the first transport unit. The first side is coupled with the guide member of the second transporting means so that the side opposite to the side on which the cushioning material is hooked and the buffering member hooked on the hooking member of the first transporting means are The buffer material feeding device according to claim 4 , wherein the buffer member is moved in a direction in which the latching member of the main conveyance stage is released. The latch release mechanism includes a pressing member provided to be able to advance and retract downward from the release position, and the transfer mechanism positions the cushioning material at the release position with the upper side of the cushioning material being latched. 6. The shock-absorbing material feeding device according to claim 3 , wherein the pressing member releases the latch of the transport mechanism by pushing down the shock-absorbing material downward.

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