JP2015089852A - Tray delivery device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tray delivery device for peeling a tray on a lower end part one by one, because when plural trays formed into a dish-shape used for food product selling are laminated and stored and held in a storage frame, and when the tray is peeled and delivered one by one, it is difficult to peel and deliver one by one because adsorption resistance of a dish-shaped overlapping part is high, and a correct deliver function is hardly maintained.SOLUTION: Both ends of three delivery bars formed into a round rod shape or round pipe shape by forming their outer peripheral surface into cylindrical shapes having appropriate diameters are attached in parallel over left and right both side parts holders with shaft 52 rotating around a delivery shaft 46, and the three delivery bars are disposed with engagement interval positions of trisection angle around the delivery shaft 46, for forming a reel-shaped tray delivery ring 42 forming the engagement interval part with the delivery bars.

Description

  The present invention relates to a tray feeding device, which feeds a tray for aligning and storing a large number of foods such as a pickle (picking), which is a food material, one by one to a tray conveyor for conveyance processing.

  It is generally known that a large number of trays are stored in a stack, and the trays are fed from the lower end of the stacking tray and are transported by a tray conveyor to store food materials. ing.

  JP 58-104815 A   JP 2003-341822 A

  The trays usually used for food sales etc. are generally made of lightweight, thin, and dish-shaped trays such as those made of expanded polystyrene. A tray with a predetermined width is formed on the outer peripheral edge of the tray. In many cases, an edge is formed to reinforce the tray so that it can be easily handled. However, a large number of thin trays formed in a dish-like shape are stacked and stored in the storage frame, and each tray is peeled off from the lower end and repeated. It is difficult to maintain an accurate feeding operation because the adsorption resistance of the dish-shaped overlapped portion is strong, and it is difficult to separate and feed each plate against this resistance.

  According to the first aspect of the present invention, both end portions of the three feeding bars 50 in the form of a round bar or a round pipe are formed around the feeding shaft 46 by forming the outer peripheral surface into a circular surface having an appropriate diameter. Attached in a parallel state between the shaft holders 52 on the left and right side portions, and arranged at a tri-section angle engagement interval position around the feeding shaft 46, the tray feeding wheel 42 is configured, and this tray feeding By rotating the wheel 42, the engagement interval portion 51 between the feeding bars 50 is fitted so as to be pushed into the tray B edge portion, and the tray B edge is engaged and held. The feeding bar 50 on the upper side is intervened in the edge overlap gap P between the tray edges of the tray B that is superposed on the upper side of the lower end tray B, and the trays B on the lower end are peeled one by one. The configuration of the tray feeding device is as follows.

A tray feeding wheel 42 having three feeding bars 50 and configured in an elongated reel form is provided at the lower end position of the tray housing frame 41 that stacks and accommodates a large number of trays B. By rotating the tray feeding wheel 42 around the feeding shaft 46, the trays are fed one by one from the lowermost tray B. As shown in FIG. 13, the feeding operation when feeding the bottommost tray B while each feeding bar 50f rotates around the feeding shaft 46 by a third rotation angle (120 degrees) is a rotation angle of 40. It is performed for each position of the feeding rotation stroke (I = 0 degrees, II = 30 degrees, III = 60 degrees, IV = 90 degrees rotation) every degree.
In the lowermost tray B, the front edge B1 or the rear edge B2 of the tray edge is supported on the upper surface of the feeding bar 50f of the tray feeding wheel 42 and is held at a certain height position ( (I position in FIG. 13). When the tray feeding wheel 42 is rotated by a third rotation angle from this posture position, the tray B edge portions B1 and B2 that are locked and supported by the feeding bar 50f are engaged with the engaging interval portion on the upper side of the feeding bar 50f. 51 so as to be pushed into the engagement space 51 so as to be sandwiched by the engagement space 51 between the lower delivery bar 50f of the engagement space 51 and the upper delivery bar 50r. Held together. When the tray feeding wheel 42 further rotates from this state, the feeding bar 50r that holds the upper side surface of the tray B edge overlaps with the holding tray B edge and the upper side of the tray B. Is intervened between the tray B edges (positions I to II in FIG. 13). At this time, since the outer peripheral surface of the feeding bar 50r is formed in a cylindrical shape, the upper tray B edge that is in sliding contact with the upper and lower peripheral surfaces of the feeding bar 50r is turned up so that the upper, lower The intervention of the interruption in the overlapping gap P between the tray B edges of the tray B is performed smoothly. The feed bar 50r pushes and opens the P between the upper and lower tray B edges while scooping up the tray B edge on the upper side while pushing down the tray B edge at the lower end. The separation and feeding of the lower end tray B can be performed accurately and smoothly (positions II to III in FIG. 13).

  In this way, when each feeding bar 50 of the tray feeding wheel 42 is rotated to the inner horizontal position, the rotation is stopped while the tray B edge received on the upper side of this feeding bar 50f is supported, and the subsequent drive is performed. Waiting for the feeding action of the tray B by rotation (positions IV to I in FIG. 13).

  According to the second aspect of the present invention, the tray feeding wheel 42 is a lower end portion of the tray housing frame 41 provided at an upper position of the tray conveyor 7, and the shaft mounting between the front side portion and the rear side portion of the housing frame 41 is performed. As a pair of front and rear arrangements that move, the front edge B1 and the rear edge B2 of the tray B stacked and received in the storage frame 41 are simultaneously engaged and rotated inward and downward while the stack is stored. The lower trays B are peeled one by one and fed to the lower tray conveyor 7 surface.

  The tray storage frame 41 on the tray conveyor 7 is formed by stacking a large number of trays B formed from a light and thin tray material made of a synthetic synthetic resin into a square dish shape and projecting a tray edge on the outer periphery. And accommodate. When the tray conveyor 7 is driven, the pair of tray feeding wheels 42 in front of and behind the lower end of the tray receiving frame 41 are rotated at every third rotation angle, so that the feeding bar 50 of the tray feeding wheel 42 is inwardly downward. From the state where the front edge B1 and the rear edge B2 of the bottom edge tray B edge of the stacked layer are engaged and supported, and the front edge B1 and the rear edge B2 of these tray B edges. Are fitted and clamped to the engagement interval portion 51 on the supply bar 50f corresponding to each supply, and the supply bar 50r on the upper side of the engagement interval portion 51 is overlapped with the tray B during this operation and the upper side thereof. The front and rear edges B1 and B2 of the lower tray B edge that is pressed and fitted into the overlapping gap portion P between the front and rear edges B1 and B2 of the upper tray B edge of the lower tray. Are peeled from the front and rear edges B1 and B2 of the upper tray B edge at the same time. The tray conveyor 7 the upper surface of the lower can pay out one by one, to convey to the supply position for supplying the contained object to the tray B.

  According to the third aspect of the present invention, the pair of front and rear tray feeding wheels 42 have a drive cam 48 that drives intermittently, and is driven by the engagement of the lugs 13 of the tray conveyor 7 that carries the tray B one by one. The tray B is fed onto the tray conveyor 7 one by one by rotating in conjunction with the driven wheels 43.

    On the upper side of the tray accommodating frame 41 of the tray conveyor 7, there is provided a driving wheel 43 formed with a driving cam 48 that is engaged and driven by the lug 13 of the tray conveyor 7, and the driving cam 48 of this driving wheel 43 is provided. Are engaged and driven by the transport movement of the lugs 13 of the tray conveyor 7, the pair of front and rear feeding wheels 42 provided at the lower end portion of the tray housing frame 41 are rotated in conjunction with each other. The storage tray B is fed out from the lower end portion one by one, and is fed out and conveyed to the space between the front and rear lugs 13 of the tray conveyor 7.

  According to the first aspect of the present invention, the tray feeding wheel 42 that feeds one by one from the lower end of the stacked tray layer is formed with a round bar or pipe rod having an appropriate diameter on the outer peripheral surface, and extends across the width of the tray. Since the three elongated feeding bars 50 are arranged in parallel in the tray width direction to constitute the main body of the reel-shaped feeding wheel 42, the configuration can be simplified. . In addition, it is easy to monitor the feeding action state of the tray B by the tray feeding wheel 42, and the maintainability can be improved.

  In addition, the tray feeding wheel 42 is rotated about the feeding shaft 46 at every third rotation angle at the lower end portion of the tray housing frame 41 that accommodates the stacked layers of the tray B, so that one tray B at the lowermost end portion is placed. When the tray feeding wheel 42 stops rotating, the tray edge of the lowermost tray B is supported by one of the feeding bars 50f, and the feeding wheel 42 rotates. The supported tray B edge is immediately fitted into the engagement interval portion 51 with the feeding bar 50r located on the upper side from the support posture, and above and below the engagement interval portion 51. The tray B edge is sandwiched and held between the feeding bars 50f and 50r facing each other. Moreover, following this, the tray edge portion of the tray B superposed on the upper side is rolled up on the upper peripheral surface of the arcuate shape of the feeding bar 50r by turning the upper feeding bar 50r, and turned up. The feed bar 50r is pushed up into the gap P between the tray edges of the upper and lower trays B, and the upper tray B is lifted up or supported while intervening. The lower tray B that is engaged and held is moved downward, peeled off from the superposition tray B one by one, and fed out, and the tray B is fed out accurately and smoothly. be able to.

  Further, the feeding bar 50 of the tray feeding wheel 42 is formed to be longer than the lateral width of the tray edge, so that it is lightly engaged and contacted over the entire length of the tray edge, and the entire width region is uniformly sandwiched and polymerized. Since the polymerization state of the tray B is pulled, peeled off, and separated, the tray B edge is not damaged or damaged, the stable tray edge is held, and an accurate and smooth feeding operation is performed. Can be made.

  The invention according to claim 2 is configured such that the front and rear pair of tray feeding wheels 42 are mainly mounted on the front side and the rear side portion of the lower end portion of the tray housing frame 41, and the three feeding bars 50 are mainly configured. Since both of them rotate inward and downward at every third rotation angle and feed out each tray B in the lowermost layer, the configuration is simple, and the front edge B1 and the rear edge of each tray B B2 can be peeled off synchronously by the feeding bar 50 of each feeding wheel 42, and the stacking and fitting of the tray B can be fed out accurately and smoothly without damaging the tray B. Stable feeding can be maintained.

  According to the third aspect of the present invention, the tray feeding wheel 42 that feeds out the tray B of the tray housing frame 41 has a drive cam 48 that is engaged by the lug 13 of the tray conveyor 7 that conveys the tray B. Since the wheel 43 is driven and rotated, and interlocked via the drive wheel 43 to rotate intermittently, a tray conveyor is not required without requiring a special motor or the like for rotationally driving the tray feeding wheel 42. 7 is used to feed the tray B one by one when the lug 13 of the tray conveyor 7 is engaged, and the tray B is fed to the bottom of the tray housing frame 41. It can be rotated, the interlocking timing can be easily taken, and the configuration can be simplified.

  The side view of a pinch packing unit.   Overall side view.   The plan view.   The front view.   The front view which shows the attachment or detachment state of a feeding apparatus part.   The side view.   The plan view.   The front sectional view of a supply belt start end part.   The side view of a tray feeding apparatus part.   The top view of a tray conveyor part.   The rear view.   The rear view of the driving wheel part.   FIG. 6 is a side view showing a feeding operation stroke of a tray feeding wheel portion.   The perspective view of a tray and a pinch.   The perspective view of a delivery wheel, and its sectional side view.

  On the basis of the drawings, a conveyor belt 12 that is long in the front-rear direction is provided with a tray conveyor 7 (consisting mainly of a flat belt) that rotates with lugs 13 protruding at regular intervals, and is driven and rotated by a motor 14. A hopper 15 for supplying the tsunami A and a supply belt 16 for receiving and transporting the tsunami A supplied from the hopper 15 on the upper surface of the flat belt are provided on the lower side in the transport direction of the tray conveyor 7 and is driven by a motor 17. Rotate. The upper surface of the supply belt 16 can be formed with a slight downward slope toward the front delivery port 18 side to maintain good delivery.

  The supply belt 2 is provided on the terminal end side of the supply belt 16 so as to extend in the front-rear direction. The supply belt 2 is fed to the front (the upper side of the tray conveyor 7) by receiving the nip A delivered from the delivery port 18, and this conveyance. At the end portion, a flat belt-shaped belt surface is stretched with a front-lowering inclined surface to form a front-lowering inclined belt inclined surface 19. The front and rear end portions of the inclined surface 19 portion of the belt 2 are tension-guided by pulleys 20, 21 and the like. The supply belt 2 is driven and rotated by the motor 17. A step is appropriately formed between the terminal end of the supply belt 16 and the start end portion of the supply belt 2, and the pinch group A is arranged in a plane by the rotation of the feeding blade 22 provided at the delivery port 18 and the guide desk 34. In this state, the feed belt 2 is fed to the start end of the supply belt 2 while being divided into a plurality of rows in the horizontal width direction. Supply continuously. An inclined plate is provided at the bottom of the stepped portion so that it can be easily fed forward to the front side after receiving the supply pin A.

  On the upper side of the supply belt 2, a guide plate 3 having an appropriate interval and height is arranged in the conveyance width direction, and a guide edge 45 having a round bar shape is formed along the lower edge of the guide plate 3. . The guides 3 that are configured to approach each other along the conveying surface of the supply belt 2 and the sheet guide 6 that covers the upper portion of the conveying surface of the supply belt 2 are transported in a single row. In this embodiment, the supply passage 1 is constituted, and the supply passage 1 is divided into four on the left and right sides of the conveyance surface width of the supply belt 2 and the ridge A is fed and conveyed in four rows on the supply belt 2 surface.

  In the example shown in the figure, the tray B used to store the lip A is composed of four rows of feed conveyance rows in the front and rear direction along the conveyance direction, and three rows arranged side by side in the horizontal direction and arranged in the horizontal direction. The recess C formed inside is aligned in the vertical and horizontal directions. A square and dish-shaped tray B in which the hollow portions C are arranged and arranged is used. Accordingly, the guide plate 3 is arranged at regular intervals in the width direction over the width of the supply belt 2 to partition and guide the lateral width direction of each supply passage 1 in a four-row conveyance form. The end portion of each guide plate 3 extends from the upper side surface portion of the supply belt 2 to the front feeding roller 11, the upper portion of the rotating portion of the operation impeller 5, and the terminal feeding port portion 62 of the feeding device 10. Configured to form. The supply passage 1 of the feeding device 10 is formed so as to form a continuous form over a feeding / feeding port portion 62 which is a terminal portion of a feeding path by the rotation of the feeding impeller 5. That is, the guide plate 3, together with the sheet guide 6, is configured so as to extend from the upper side surface portion of the supply belt 2 portion through the inclined surface 19 portion to the terminal outlet 62.

  In a form in which the feeding case 9 of the feeding device 10 including the feeding roll 11 and the feeding impeller 5 on the front side of the supply belt 2 is configured to be detachable from the front end portion of the supply frame 39 (FIGS. 5 to 7). ), The feeding device 10 is arranged and configured inside the feeding case 9 to form a unit. As described above, in the embodiment in which the feeding device 10 is attached and detached, the feeding guide plate 38 is provided at the front end portion of the guide plate 3 on the supply belt 2 so as to extend, and the front end portion of the sheet guide 6 is also provided. Further, a guide cover 49 is formed at the terminal end to replace the terminal end of the sheet guide 6 so as to cover the rotating outer peripheral portion of the feeding impeller 5 at the terminal end. As the feed passage 37 (supply passage 1) and the feed guide plate 38 (supply guide plate 3) in the feed case 9, the feed guide plate 38 is continuously connected to the front end portion of the supply belt 2 so as to guide to the section 62. , The sheet guide 6, the guide cover 49, and the feeding passage 37. In the example shown in the figure, the supply impeller 5 and the supply passage 1 part such as the supply roll 11 are partitioned by the supply guide plate 38 in the lateral width direction as the supply passage 37. , And are integrally attached to the feeding case 9. The feed case 2 is configured as an independent block-type feed case 9 that is extended and connected to the front end portion of the supply guide plate 3 on the supply belt 2 side. The feed case 9 can be attached to and detached from the front end portion of the supply frame 39. As a configuration that can be opened and closed, the inside of the feeding roll 11 and the feeding impeller 5 can be easily maintained.

The upper part of each supply passage 1 is made of transparent urethane along the upper part of the transport path stroke extending from the supply belt 2 and the belt inclined surface 19 part of the latter half part to the supply roll 11 and the supply impeller 5. The sheet guide 6 is configured so as to be covered with the sheet guide 6. The lower surface of the sheet guide 6 is appropriately set to a height position with a small allowance between the upper surface of the row A that is conveyed through the supply passage 1. It is fixed to a bracket 61 on the lower side of the seat cover 60 arranged along the upper side of the seat guide 6 with screws 44 or the like. The seat guide 6 is in a form fitted to the inner upper portion of each supply passage 1 and can be configured such that the height interval with the surface of the supply belt 2 can be adjusted. Further, by removing the seat cover 60 from the supply frame 39, it is possible to remove and attach the sheet guides 6 so that the sheet guides 6 are taken out as a whole. The upper surface of each supply passage 1 is opened or closed. It can be in a guidance state.
The height position of the sheet guide 6 is fixed, but the height interval with the conveying surface of the supply belt 2 can be changed and adjusted according to the thickness of the rim A, the type of the rim A, and the like. Is also possible. The lower surface of the urethane sheet guide 6 is a smooth surface, and even if the lip A comes into contact with the surface, it is difficult to attach and resist conveyance resistance, and guides stable feeding and conveyance. Above the supply belt 2, a control box 35 and a control panel 27 erected from the conveyor frame 12 are provided.

  The sheet guide 6 is formed in parallel with the belt inclined surface 19 along an appropriate height position above the belt inclined surface 19 of the supply belt 2. At the end of the inclined surface 19 of the supply belt 2, there is a feeding roll 11 in a form in which a Soroban ball-shaped conical surface 29 is opposed to the lower bottom portion of each feeding guide plate 38 interval portion (feeding passage 37 portion) from both left and right sides. It arrange | positions over the same roll axis | shaft 28 direction, and rotates integrally. A resistance strip or a resistance groove 30 is formed in the conical surface 29 of each of the feeding rolls 11 facing each other in the radial direction so that the feeding resistance of the pin A can be effectively used. A feeding impeller 5 having a feeding blade 4 protruding in a cross shape around the shaft 31 is formed on the front side of the feeding roll 11. The feeding roll 11 and the feeding impeller 5 are formed within the width of the feeding passage 37 between the feeding guide plates 38. A portion of the feeding passage 37 located in the rotating peripheral portion is partitioned by the feeding guide plate 38.

  The nip A supplied from the terminal end of the supply belt 2 to the upper portion of the supply roll 11 is sent between the supply blades 4 of the supply impeller 5 rotating on the front side, and the connection A between the supply blades 4. Is supplied to the tray B which is transported on the upper surface of the tray conveyor 7 at the lower position from the front end portion over the shaft 31 at the same time. The shaft 31 of the feeding impeller 5 and the shaft 28 of the feeding roll 11 are driven and rotated by the motor 33 in conjunction with the chain 32.

  The tray sensor 8 is provided immediately below the end position of the feeding impeller 5, and indicates that the tray B on the tray conveyor 7 has been transported to a position where the tray B is dropped from the rotating tip of the feeding blade 4. By detecting the tray sensor 8, the motor 33 is activated, and the feeding impeller 5 and the feeding roll 11 are driven and rotated at an appropriate speed according to the speed of the tray conveyor 7, so that the hollow portion is accommodated in the pinch A. It is possible to perform feeding supply for each C row. The driving rotational speed of these motors 33 can be specified by a setting operation on the control panel 27 in accordance with the tinting A, the standard of the tray B, or the like.

The drawing blade 4 of the drawing blade wheel 5 in the illustrated example is a four-blade shape arranged in a cross shape around the shaft 31, so that the tray B is a small tray B in which three rows are arranged side by side to form a hollow portion C row. In some cases, the tray sensor 8 detects the conveyance of the tray B, so that the feeding impeller 5 is driven by three quarters of the rotation, so that the feeding blade 4 on which each pin A is loaded rotates by an angle corresponding to three. It is moved, and the picked-up Tail A row is accommodated in each recess C row of the tray B for each row.
Further, when the tray B is a large tray B arranged in four rows and rows, while the tray sensor 8 detects the conveyance of the tray B, the feeding impeller 5 is driven to make one turn, and each feeding blade Each time 4 rotates by a quarter, the row A row of rows is supplied to each recess C row of the tray B.

The feeding roll 11 receives the picked-up nip A at the end of each supply passage 1 by a V-shaped groove roll 36 having a rotating circumferential surface formed in a V-shaped cross section, and a central portion of the V-shaped groove roll surface 36. While guiding to the position, the V-shaped inclined surface 29 is fed from both the left and right sides. Each V-shaped grooved surface 29 between the V-shaped inclined surfaces 29 is lifted up one by one by the surface of the feeding blade 4 on the front side and fed forward. The nipple A fed out for each supply passage 1 is fed out in the same rotational phase in the direction of the axis 31 of the delivery impeller 5, so that the nipple A supplied from each supply passage 1 to the feeding passage 37 is in the same rotational phase. The feeding blades 4 are partitioned by a feeding guide plate 38 and are arranged in parallel along the horizontal axis 31 so that the feeding is performed simultaneously, and the horizontally aligned indented portions C (dish-like) of the tray B are performed. Indented) are simultaneously supplied to the position row. For this reason, the ridge A fed out of the feeding passage 37 by the V-shaped groove 36 feeding roll 11 is accurately placed on the central portion of the surface width of the feeding blade 4 in a divided manner.
Then, the pinches A of the respective feeding passages 37 placed on the surfaces of the partition blades 4 are simultaneously fed and rotated by the rotation of the shaft 31 and are simultaneously supplied to the row of hollow portions C of the tray 6.

  Such a feeding and feeding process of the catch A by the feeding roll 11 and the feeding blade 5 is performed only by these feeding rotation speeds, and is not directly affected by, for example, the rotation state of the supply belt 2. Accordingly, when the feeding roll 11 and the feeding impeller 5 are synchronously rotated by driving the geared motor 33, only the row A row mounted on the V-shaped groove roll 11 of the feeding roll 11 is accurately divided into blades at the same phase position. It is placed on the four surfaces, fed to the front side, and supplied simultaneously for each of the recessed portion C rows of the tray B arranged side by side.

  In the feeding and conveying of the tin A by the supply belt 2 and the feeding roll 11 to the feeding impeller 5 and the like, the conveying tab A of each of the feeding passages 1 and the feeding passage 37 is lifted or pushed up to feed the feeding belt 2. Or, when it is largely lifted from the V-shaped groove 36 portion of the feeding roll 11, the conical roll groove surface 29, etc., it is pressed by the upper sheet guide 6 and is maintained so as not to break the conveying form of one line. It is placed on the surface and the surface of the feeding roll 11, and an accurate conveying action is performed. In addition, it is possible to prevent the tsunami A from moving up and down in the supply passage 26 so as to be superposed between the tsunamis A, to prevent the stagnation of the transport in a state of being subjected to pressure, or to greatly deform into a dumpling form. To do.

  A feeding case 9 having a feeding roll 11 and a feeding impeller 5 is disposed at a front end portion of a feeding frame 39 that stretches the feeding belt 2 in the front-rear direction. The feeding case 9 includes the feeding frame 39. The feed guides 38 are formed along the same extended surface as the supply guides 3, and are partitioned between the feed guides 38, and are fed to the feed passages 37 that communicate with the supply passages 26. The feeding blade 4 is arranged to rotate. In addition, the sheet guide 6 is disposed above these. The feeding case 9 having the feeding roll 11 mounted on the shaft 28, the feeding impeller 5 mounted on the shaft 31, and the seat guide 6 at the terminal end mounted thereon is formed in a box shape long in the lateral width direction with respect to the frame 39. It is detachably mounted from the side or the upper side. Instead of this attachment form, the feeding frame 9 can be opened and closed with respect to the supply frame 39 to open the inside of the conveyance path. When cleaning each supply passage 1 and the portion of the feeding passage 37 or performing inspection work, the feeding case 9 is opened to facilitate maintenance.

  The tray accommodating frame 41 is provided on the upper side of the tray conveyor 7 frame 12, and has a guide rod 63 that guides the front, rear, left, and right portions of the square tray B so as to slide down. At the lower end of the tray housing frame 41, a pair of tray feeding wheels 42 are provided at the front and rear side edges B1 and B2 so as to be rotatable around a feeding shaft 46 installed on the upper side of the conveyor 7. The tray feeding wheel 42 is formed of three rods that are formed at a radial position at every three-divided angle around the axis 46, at each triangular vertex position of the regular triangle in a side view, and formed by a round bar, and wide enough to fill the width of the conveyor 7. A tray feeding bar 50 is arranged, and each time the tray feeding wheel 42 is driven by one third of rotation around the steering shafts 46 at the left and right ends, the tray B supported at the bottom is moved one by one. It can be fed downward. The front and rear tray feeding wheels 42 are rotated in synchronization with each other to the lower inner side, rotate so as to sandwich the front and rear edge portions B1 and B2 from the front and rear side portions of the tray B edge, and are fed downward. Further, the tray feeding bar 50 is constructed such that the left and right end portions are rotatably supported with respect to the shaft mounting holder 52 rotating around the shaft 46, or the feeding lug rod 47 is a round bar, or As a form that is configured by a cylindrical pipe material and is rotatably supported with respect to the shaft holder 52, it is possible to easily turn and feed the tray edge.

When the tray B is fed out by the rotation of the tray feeding wheel 42, the overall width 1 of each feeding bar 50 is overlapped between the front edge portion B1 of the upper and lower overlapping tray B edges and between the rear edge portions B2. In order to partition the top and bottom by pivoting in the gap P, the front edge B1 and the rear edge B2 are not easily damaged in the vertical peeling action of these trays B. The front edge B1 of the lower end tray B and the rear By engaging and feeding out the entire width of the edge portion B2 with each feeding bar 50, the tray B can be fed smoothly and accurately.
The pair of front and rear tray feeding wheels 42 are interlocked with the chain 47 by the rotation of the driving wheels 43 provided on the tray conveyor 7. The drive wheel 43 has a drive cam 48 that is engaged by the lug 13 of the tray conveyor 7, and is rotated by a certain angle each time the lug 13 is engaged, thereby rotating the tray feeding wheel 42. Then, the tray B is fed out one by one.

  The tray sensor 8 is provided near the feeding position of the feeding impeller 5 and photoelectrically detects the tray B conveyed by the tray conveyor 7. A guide cover 49 having an arcuate side cross-sectional shape is formed of the same material as a terminal portion of the sheet guide 6 along the rotation outer peripheral portion of the feeding impeller 5, and a feeding outlet portion 62 is formed at the lower end portion. A tray sensor 8 that detects the presence / absence of the transport tray B while projecting photoelectric light in the lateral direction is disposed at the upper end of the guide cover 49 at the upper side in the tray B transport direction. By detecting the tray B of the tray sensor 8, the motor 33 is driven as described above to rotate the feeding roll 11 and the feeding impeller 5.

Specification examples of the tray B used in the tray feeding device, the lip A accommodated in the tray B, the feeding wheel 42 for feeding out the tray A, and the like will be mainly described with reference to FIGS.
In the figure showing the usage form of the tray B, the standard of the tray B is the vertical width f (= 105 mm) in the feeding and conveying direction, the horizontal width e (= 177 mm) in the horizontal width direction of the conveyor 7, and the thickness in the vertical depth direction. The length d (= 28 mm) is a relatively small square plate shape. The tsunami A to be accommodated in this is a knitted food formed into a spherical shape, and accommodates tsumi sphere A having a sphere diameter a (= 34 to 35 mm). A recess C row is formed in the inner bottom of the tray B so as to receive such a pinch A aligned in the vertical and horizontal directions. The depression C row in the width E direction receives four ridges A for each row, while the depression C row in the width B direction receives every three ridges A. Further, in the case of a standard tray B that is one step larger than this standard, the depression C row in the vertical width B direction can receive four or five ridges A having the same spherical diameter A side by side. On the outer peripheral edge portion of the tray B, a fixed-width tray edge curved downward is projected. The tray edge portion is formed to have a thickness n (= 3, 0 to 3, 5 mm) and is sandwiched between engagement interval portions 51 (k = 2, 0 mm) formed between feeding bars 50 described later. And press fit. The thickness of the tray edge portion may be compressed against its own elasticity and temporarily held in the engagement interval portion k.

The tray B that accommodates the lip A has the thickness of the lip A to be accommodated substantially constant and the width e of the tray B is constant. By changing the size of the tray B, the standard size of the tray B is selected, and the tray conveyor 7 is shared.
The tray feeding wheel 42 of the tray housing frame 41 used for feeding and feeding the tray B is formed from three feeding bars 50 installed between a pair of left and right shaft mounting holders (shaft metal) 52 having shafts 46. The reel is configured to have a thin rotational diameter, and the outer diameter g (= 4 mm) of the outer peripheral cylindrical surface of each feeding bar 50 is set to be engaged between the bar centers between the feeding bars 50. The case where it sets as the space | interval h (= 6 mm) of the space | interval part 51 is shown. The distance between the left and right shaft holders 52 and the length r of each feeding bar 50 are set slightly longer (r> e) than the lateral width e of the tray B, so that the tray edge in the tray B feeding action is set. The full width e of the front circle portion B1 or the rear edge portion B2 is fitted into the engagement interval portion 51 and is subjected to a feeding action.

DESCRIPTION OF SYMBOLS 1 Supply path 2 Supply belt 3 Supply guide 4 Feeding blade 5 Feeding wheel 6 Sheet guide 7 Tray conveyor 8 Tray sensor 9 Feeding case 11 Feeding roll 19 Belt inclined surface 41 Tray receiving frame 42 Tray feeding wheel 43 Driving wheel 48 Driving cam 50 Feeding bar
50f Feeding bar (rotation direction side)
50r feeding bar (on the rear side in the rotation direction)
51 Engagement interval portion A Tail B Tray C Recess inside the tray

Claims (3)

  Between the shaft mounting holders 52 on the left and right sides rotating around the feeding shaft 46, the both ends of the three feeding bars 50 in the form of a round bar or a round pipe by forming the outer peripheral surface into a circular surface with an appropriate diameter. The tray feeding wheel 42 is configured by being arranged in a parallel state over the feeding shaft 46 and arranged at a triangulated angle engagement interval position around the feeding shaft 46, and each feeding by rotating the tray feeding wheel 42. The engagement interval portion 51 between the bars 50 is fitted so as to be pushed into the tray B edge portion to engage and hold the tray B edge, and the feeding bar 50 on the upper side of the engagement interval portion 51 is A tray feeding device characterized in that the tray B at the lower end is peeled off one by one by intervening in the edge overlap gap P between the tray edges B1 and B2 of the tray B superimposed on the upper side of the lower end tray B .   The tray feeding wheel 42 is a lower end portion of a tray housing frame 41 provided at an upper position of the tray conveyor 7, and as a pair of front and rear arrangement forms that pivot on the front side portion and the rear side portion of the housing frame 41. The lowermost trays B for stacking are stored one by one while simultaneously engaging the front edge B1 and the rear edge B2 of the tray B edge accommodated in the stacking frame 41 and rotating inward and downward. The tray feeding device according to claim 1, wherein the tray feeding device is separated and fed to the surface of the lower tray conveyor.   The pair of front and rear tray feeding wheels 42 have intermittent drive cams 48 and are interlocked and rotated by driving wheels 43 driven by the engagement of the lugs 13 of the tray conveyor 7 which carries the tray B one by one. Then, the tray feeding device according to claim 1 or 2, wherein the tray B is fed out onto the tray conveyor 7 one by one.

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