Adhesive application apparatus, adhesive application method, palletizing system, and palletizing method

Abstract

A function to prevent cargo collapse can be added to the palletizing system in a relatively simple manner. [Solution] The present invention provides an adhesive application device X mounted on a palletizing system S for applying adhesive B to cargo A, comprising a spray 1 for spraying adhesive B and a cover 2 that surrounds the spray path of the spray 1 to prevent scattering of adhesive B, wherein the spray direction of the spray 1 is upward with respect to the horizontal plane.

Description

Technical Field

[0001] The present invention relates to preventing load collapse in a palletizing system.

Background Art

[0002] In a palletizing system, industrial robots that automatically perform stacking on pallets are known. Such industrial robots are specialized for stacking and cannot perform other operations.

[0003] In stacking onto a pallet, it is preferable to take means for preventing load collapse. As a technique for preventing load collapse, a packaging machine that wraps a stacked load group with a stretch film (for example, the stretch packaging device described in Patent Document 1) is known. However, such a packaging machine is generally large and difficult to mount on a palletizing system.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The problem to be achieved in the present disclosure is to relatively easily add a function for preventing load collapse to a palletizing system.

Means for Solving the Problems

[0006] To achieve this problem, the present disclosure provides adhesive application devices [1] to [6].

[0007] The coating device [1] is mounted on a palletizing system and is an adhesive coating device for applying adhesive to a load, comprising a spray for ejecting adhesive and a cover that surrounds the spray path to prevent the adhesive from scattering, wherein the spray direction is upward with respect to the horizontal plane.

[0008] The coating device [2] is the coating device [1], wherein the adhesive is cold glue.

[0009] The coating apparatus [3] is the coating apparatus [1] or [2], wherein the cover has a flexible opposing portion, the opposing portion being provided at least on the upper part of the cover.

[0010] The coating device [4] is one of the coating devices [1] to [3], and the cover is removable.

[0011] The coating apparatus [5] is one of the coating apparatuses [1] to [4], comprising a linear motion mechanism and a housing for housing a spray, wherein the linear motion mechanism has a stage and the housing is fixed to the stage.

[0012] The coating apparatus [6] is a coating apparatus [5] further comprising a fixing mechanism for fixing a spray to a housing, wherein the fixing mechanism allows for adjustment of the spray direction angle when fixing the spray.

[0013] Furthermore, in order to achieve this objective, the present disclosure provides methods for applying adhesives [1] to [4].

[0014] The application method [1] is an adhesive application method for applying adhesive to a load during palletizing, comprising an adhesive scattering prevention step of placing a cover below the load, and a main step of applying the adhesive that has passed through the inside of the cover to the load.

[0015] Application method [2] is application method [1], wherein the main step is to apply cold glue as an adhesive.

[0016] The coating method [3] is the coating method [1] or [2], wherein the cover has a flexible opposing portion, and the adhesive splatter prevention step includes facing the opposing portion to the bottom of the load.

[0017] The coating method [4] is one of the coating methods [1] to [3] and is performed by one of the coating devices [1] to [6].

[0018] Furthermore, in order to achieve this objective, this disclosure provides a palletizing system [1] to [3].

[0019] A palletizing system [1] is a palletizing system comprising one of the coating devices [1] to [6] and an industrial robot.

[0020] A palletizing system [2] is a palletizing system [1] wherein an industrial robot supports the load from above or from the side.

[0021] A palletizing system [3] is a palletizing system [1] or [2] comprising a conveyor, wherein the conveyor is a chain conveyor or a roller conveyor, and the coating device is installed below the conveying surface of the conveyor.

[0022] Furthermore, in order to achieve this objective, the Disclosure provides palletizing methods [1] and [2].

[0023] The palletizing method [1] is a palletizing method comprising a loading step of transporting the cargo and stacking it on a pallet, wherein the loading step comprises a coating step of applying an adhesive to the cargo using one of the coating methods [1] to [4].

[0024] The paratizing method [2] is a paratizing method that is executed by any one of the paratizing systems [1] to [3].

Advantages of the Invention

[0025] The coating device and coating method provided by the present disclosure can relatively easily add a function to prevent load collapse in the paratizing system.

[0026] In addition, the paratizing system and paratizing method provided by the present disclosure can relatively easily prevent load collapse.

Brief Description of the Drawings

[0027] [Figure 1] It is an explanatory diagram of an embodiment of the present invention. [Figure 2] It is an explanatory diagram of an embodiment of the present invention. [Figure 3] It is an explanatory diagram of an embodiment of the present invention. [Figure 4] It is an elevation view of a paratizing system according to an example of an embodiment of the present invention. [Figure 5] It is a perspective view of a coating device according to an example of an embodiment of the present invention. [Figure 6] It is a partially exploded perspective view of a coating device according to an example of an embodiment of the present invention. [Figure 7] It is a perspective view of a fixing mechanism according to an example of an embodiment of the present invention. [Figure 8] It is a block diagram of a control unit according to an example of an embodiment of the present invention. [Figure 9] It is an elevation view of a paratizing system according to a modified example of an embodiment of the present invention.

Modes for Carrying Out the Invention

[0028] As one embodiment of the present invention, the present disclosure provides a coating device X mounted on a paratizing system S. FIGS. 1 to 3 are diagrams for explaining this embodiment.

[0029] The palletizing system S includes a palletizing device for transporting and / or stacking cargo A onto pallets. This palletizing system includes an industrial robot R as one of its palletizing devices. The industrial robot R may be a vertical articulated robot or a Cartesian robot. This palletizing system may also include a conveyor C as one of its palletizing devices. Preferably, cargo A is box-shaped. More preferably, cargo A is corrugated cardboard boxes and the contents of the corrugated cardboard boxes.

[0030] The coating device X applies adhesive B to cargo A. Adhesive B adheres adjacent cargoes together in the stacked cargo group. This prevents the stacked cargo group from collapsing.

[0031] The coating device X is equipped with a spray 1 that sprays adhesive B. In other words, the coating device X performs spray coating. Compared to other coating methods, spray coating is fast, economical in terms of adhesive consumption, and can be used for loads with poor surface flatness. Preferably, the coating device X is equipped with multiple sprays 1.

[0032] The coating device X applies adhesive B to the load A from below. Preferably, the coating device X applies adhesive B to the bottom surface of the load A. This allows the industrial robot R to transport the load A without touching the applied adhesive B (see Figure 1). Furthermore, the coating device X can apply adhesive B to the load A while the industrial robot R is transporting the load A. Note that in general, industrial robots support the load from above or from the side during transport.

[0033] The spray direction of spray 1 is upward with respect to the horizontal plane. This allows the coating device X to apply adhesive B from below the load A. Preferably, the spray direction of spray 1 is approximately vertically upward. Also preferably, the spray direction of spray 1 is vertically upward or at a predetermined angle with respect to vertically upward. Preferably, this angle is 45 degrees or less. Even more preferably, this angle is 30 degrees or less. Even more preferably, this angle is 15 degrees or less.

[0034] The coating device X is equipped with a cover 2 that surrounds the spray path of the spray 1. This prevents the adhesive B from scattering into the surroundings. This effect is particularly noticeable when the adhesive B has high fluidity, especially when the adhesive B is a cold glue. The cover 2 may be positioned to always surround the spray path of the spray 1 in conjunction with the movement of the spray 1, or it may be positioned to surround the entire area of ​​movement of the spray path of the spray 1 due to the movement of the spray 1.

[0035] Preferably, the cover 2 has a flexible opposing portion 21. The opposing portion 21 is provided at least on the upper part of the cover 2. This ensures that even if the load A comes into contact with the cover 2, the flexibility of the opposing portion 21 virtually eliminates the risk of damage to the load A. Therefore, even taking into account control errors and control erroneous behavior, the industrial robot R can transport the load A so that it is sufficiently close to or in contact with the opposing portion 21, and the scattering of adhesive B into the surroundings can be almost completely prevented (see Figures 2 and 3). The opposing portion 21 may be made of resin, rubber, or fiber. Preferably, the cover 2 has a base portion 22, and the opposing portion 21 extends from the upper end of the base portion 22. The opposing portion 21 may be brush-shaped or plate-shaped.

[0036] Preferably, adhesive B is a cold glue (an adhesive that is fluid at room temperature). This simplifies the equipment configuration and reduces implementation costs compared to when adhesive B is a hot melt (an adhesive that becomes fluid when heated). This cold glue may be a water-based adhesive, a synthetic rubber-based adhesive, or a polyurethane-based adhesive. More preferably, adhesive B is a cold glue that is liquid at room temperature.

[0037] Preferably, the coating device X includes signal transmission and reception means for the control unit of the palletizing system S. This allows the palletizing system S to control the palletizing device and the coating device X in association. In particular, the timing of transport by the palletizing device and the timing of adhesive application by the coating device X can be synchronized.

[0038] This disclosure further provides an example of a coating apparatus X mounted on a palletizing system S. Figures 4-8 illustrate this example. The technical scope of the coating apparatus X and palletizing system S extends not only to this example but also to similar examples in which the configuration and elements (dimensions, shape, arrangement, etc.) of this example have been modified based on design requirements.

[0039] In this example, the palletizing system S comprises a coating device X and an industrial robot R that transports and / or stacks the cargo A onto a pallet (see Figure 4). The palletizing system S may also include a conveyor C.

[0040] In this example, the coating device X is installed below the movement path of the load A as defined by the industrial robot R. Preferably, the coating device X is installed below the movement path of the load A as defined by the industrial robot R. More preferably, the coating device X is installed below the movement path of the load A as defined by the industrial robot R and next to the industrial robot R.

[0041] In this example, cargo A is box-shaped, and the coating device X applies adhesive B to the bottom surface of cargo A. Preferably, the coating device X applies adhesive B to the periphery of the bottom surface of cargo A. More preferably, the coating device X applies adhesive B to the corners of the bottom surface of cargo A.

[0042] In this example, the coating device X includes a mounting section 3 that defines the mounting surface for the entire coating device X (see Figures 5 and 6). This gives the coating device X versatility when mounted on the palletizing system S. The mounting section 3 may have any configuration. The mounting section 3 may be a base that supports the spray 1, or it may be the housing for the entire coating device X.

[0043] In this example, the mounting section 3 is a base made of an aluminum frame 31. Preferably, the mounting section 3 has an anchor stand 32 that defines the mounting surface. Preferably, the mounting section 3 has an adjuster pad 33 that defines the mounting surface.

[0044] In this example, the coating device X includes a linear motion mechanism 4. The linear motion mechanism 4 moves the spray 1 along one direction in a horizontal plane. The linear motion mechanism 4 is attached to the mounting section 3. Preferably, the linear motion mechanism 4 is attached to the aluminum frame 31 on the upper part of the mounting section 3.

[0045] In this example, the linear motion mechanism 4 includes a stage 41 on which the spray 1 is mounted, a lead screw 42, and a linear guide 43. Preferably, the stage 41 is a plate. Preferably, the lead screw 42 is a trapezoidal screw or a ball screw. Preferably, the linear guide 43 is a linear shaft.

[0046] In this example, the stage 41 is provided with a nut 411 that engages with a lead screw 42. The stage 41 also has a through hole 412 through which a linear guide 43 is inserted. The direction of penetration of the through screw hole defined by the nut 411 and the direction of penetration of the through hole 412 are approximately parallel.

[0047] In this example, the lead screw 42 and the linear guide 43 are arranged in one horizontal direction. Preferably, the lead screw 42 and the linear guide 43 are arranged in one direction parallel to the mounting surface defined by the mounting portion 3. The axial direction of the lead screw 42 and the axial direction of the linear guide 43 are substantially parallel.

[0048] In this example, preferably, the linear motion mechanism 4 has side plates 44. Two side plates 44 are attached to the mounting section 3. Preferably, one side plate 44 is attached to each of the aluminum frames 31 at both ends of the mounting section 3 so as to face each other.

[0049] In this example, the side plate 44 has a through hole 441 through which the lead screw 42 is inserted, and a through hole 442 through which the linear guide 43 is inserted. The direction of penetration of through hole 441 and through hole 442 are approximately parallel. The distance between through hole 441 and through hole 442 in the side plate 44 is approximately the same as the distance between the through screw hole and through hole 412 defined by the nut 411 in the stage 41.

[0050] In this example, a lead screw 42 is screwed into the stage 41 via a nut 411, and a linear guide 43 is inserted through a through hole 412. The lead screw 42 and the linear guide 43 are supported by the side plate 44 via through holes 441 and 442, respectively.

[0051] In this example, the linear motion mechanism 4 moves the stage 41 along the linear guide 43 by rotating the lead screw 42 axially. Preferably, the linear motion mechanism 4 has a handle 45 fixed to the lead screw 42. Preferably, the linear motion mechanism 4 also has a motor connected to the lead screw 42. Preferably, this motor is connected to the control unit of the palletizing system S via a signal transmission / reception means. This control unit adjusts the position of the stage 41 by driving the motor.

[0052] In this example, the coating apparatus X includes a housing 5 that houses a spray 1. The housing 5 is formed in a substantially rectangular parallelepiped shape. The top surface of the housing 5 is open. The spray 1 is detachably fixed to the housing 5 such that its spray direction points towards the top surface of the housing 5.

[0053] In this example, preferably, the coating device X includes a fixing mechanism 6 for fixing the spray 1 to the housing 5 (see Figure 7). The fixing mechanism 6 has a first member 61, a second member 62, and a third member 63. The first member 61 is fixed to the housing 5. The first member 61 and the second member 62 are fixed together by a bolt-nut mechanism via fixing holes. The second member 62 and the third member 63 are fixed together by a bolt-nut mechanism via fixing holes. The third member 63 is fixed to the spray 1.

[0054] In this example, the first member 61 has a fixed elongated hole 611 formed therein. The first member 61 is positioned such that the longitudinal direction of the fixed elongated hole 611 is substantially aligned with the spray direction of the spray 1. This allows the height of the spray position of the spray 1 to be adjusted by changing the relative position of the first member 61 and the second member 62. The second member 62 may also have an elongated hole similar to the fixed elongated hole 611 formed therein. In this case, the second member 62 is positioned such that the longitudinal direction of this fixed elongated hole is substantially aligned with the spray direction of the spray 1.

[0055] In this example, the third member 63 has a fixing shaft hole 631 and a fixing arc hole 632. The fixing shaft hole 631 is a round hole. The fixing arc hole 632 is formed to follow an arc centered on the fixing shaft hole 631. This allows the spray direction angle of the spray 1 to be adjusted by changing the relative angle between the second member 62 and the third member 63 with respect to the fixing shaft hole 631. The second member 62 may also have a fixing shaft hole and a fixing arc hole similar to the fixing shaft hole 631 and fixing arc hole 632.

[0056] In this example, the fixing arc hole 632 is formed to follow an arc defined by a predetermined angle as its central angle. This allows the spray direction angle of the spray 1 to be adjusted within this angle range. Preferably, this angle is 15 degrees (±7.5 degrees) or more. More preferably, this angle is 30 degrees (±15 degrees) or more.

[0057] In this example, cover 2 is detachably fixed to housing 5 so as to be positioned above housing 5. As a result, cover 2 surrounds the spray path of spray 1, receives the scattered adhesive B, and allows it to be collected by housing 5.

[0058] In this example, the cover 2 has an opposing portion 21 and a base portion 22.

[0059] In this example, the base portion 22 is formed in a substantially cylindrical shape. Preferably, the base portion 22 is formed in a substantially rectangular cylindrical shape.

[0060] In this example, the opposing portion 21 extends from the upper end of the base portion 22. The opposing portion 21 is made of resin and is brush-shaped.

[0061] In this example, the housing 5 is fixed to the stage 41. As a result, the spray 1 is mounted on the stage 41.

[0062] In this example, bolt holes 51 are formed on the side of the housing 5. Additionally, fixing holes 413 are formed in the stage 41. The housing 5 is bolted to the stage 41 via the fixing holes 413 and bolt holes 51.

[0063] In this example, preferably, the bolt holes 51 are formed on multiple sides of the housing 5. More preferably, the bolt holes 51 are formed on both adjacent sides of the housing 5. This allows the spray 1 to be rotated around the spray direction as the axis of rotation, and the spray profile of the spray 1 can be substantially changed.

[0064] In this example, preferably, the coating apparatus X includes an adhesive supply tank and an adhesive supply pipe (not shown) for supplying adhesive B to the spray 1. Preferably, the housing 5 has an opening (not shown) through which the adhesive supply pipe passes to the spray 1.

[0065] In this example, preferably, the spray 1 is connected to the control unit of the palletizing system S via a signal transmission / reception means. This control unit switches the spray 1 on and off. At this time, the housing 5 has an opening (not shown) through which this signal transmission / reception means passes.

[0066] In this example, the spray direction of spray 1 is upward relative to the mounting surface defined by the mounting section 3. This allows the coating device X to apply adhesive B from below the load A while it is mounted. Preferably, the spray direction of spray 1 is approximately vertically upward relative to the mounting surface defined by the mounting section 3. Also preferably, the spray direction of spray 1 is vertically upward relative to the mounting surface defined by the mounting section 3, or at a predetermined angle to vertically upward. Preferably, this angle is 45 degrees or less. More preferably, this angle is 30 degrees or less. Even more preferably, this angle is 15 degrees or less.

[0067] In this example, preferably, the coating apparatus X comprises a plurality of sprays 1 and a plurality of housings 5 ​​that house each of the sprays 1.

[0068] In this example, preferably, fixing holes 443 are formed in the side plate 44. This allows the spray 1 to be mounted on the side plate 44 by fixing the housing 5 to the side plate 44. Preferably, the coating device X comprises a first spray 1 mounted on the stage 41 and a second spray 1 mounted on the side plate 44. This allows the coating device X to apply adhesive B to two locations on the bottom surface of the cargo A simultaneously, according to the dimensions of the cargo A.

[0069] In this example, preferably, the coating apparatus X comprises a first housing 5 for housing a first spray 1 and a second housing 5 for housing a second spray 1. Preferably, the first housing 5 is fixed to the side of the stage 41 where the side plate 44 is located, and the second housing 5 is fixed to the side of the side plate 44 where the stage 41 is located. This allows the first housing 5 to come close enough to the second housing 5, and enables the adhesive B to be properly applied to a sufficiently small load A.

[0070] In this example, the linear motion mechanism 4 may have multiple stages 41 on which each spray 1 is mounted. Preferably, the lead screw 42 is a left-right thread, and the coating device X comprises a first stage 41 into which the left-right thread side of the left-right screw is screwed, and a second stage 41 into which the right-right thread side of the left-right screw is screwed. This allows the coating device X to apply adhesive B to two locations on the bottom surface of the cargo A simultaneously, according to the dimensions of the cargo A.

[0071] In this example, the coating device X may comprise a plurality of linear motion mechanisms 4 and a plurality of sprays 1 mounted on each linear motion mechanism 4. Preferably, each linear motion mechanism 4 is equipped with a plurality of sprays 1. This allows the coating device X to apply adhesive B to multiple locations (for example, the four corners) on the bottom surface of the cargo A, according to the dimensions of the cargo A, simultaneously.

[0072] In this example, the coating apparatus X may include a control unit 7 (see Figure 8). The control unit 7 controls the application of adhesive B by spray 1. The control unit 7 may perform various processes using a processor (e.g., CPU) and perform various storage operations using memory (e.g., main memory, storage).

[0073] In this example, the control unit 7 may have a remaining amount detection unit 71. The remaining amount detection unit 71 detects when the remaining amount of adhesive B in the supply tank falls below a predetermined amount and notifies the user. The remaining amount detection unit 71 may count the number of times spray 1 is applied and detect when the remaining amount of adhesive B in the adhesive supply tank falls below a predetermined amount based on the predetermined amount of adhesive B applied per application and the number of applications. Alternatively, the remaining amount detection unit 71 may detect when the remaining amount of adhesive B in the adhesive supply tank falls below a predetermined amount based on data from a sensor that detects the remaining amount in the adhesive supply tank. This sensor may be a liquid level sensor or a weight sensor.

[0074] In this example, the control unit 7 may have an inspection unit 72. The inspection unit 72 detects that adhesive B has not been applied to cargo A and notifies the user. The inspection unit 72 may detect that adhesive B has not been applied to cargo A based on data from a camera (not shown) installed to observe the bottom surface of cargo A.

[0075] In this example, the control unit 7 may have an abnormality detection unit 73. The abnormality detection unit 73 detects that the spray of adhesive B by the spray 1 was not performed normally and notifies the user. The abnormality detection unit 73 may detect that the spray of adhesive B by the spray 1 was not performed normally based on data from a flow meter (not shown) that detects the flow rate of adhesive B in the adhesive supply pipe.

[0076] In this example, the control unit 7 may have a cleaning unit 74. Based on instructions from the user, the cleaning unit 74 introduces a cleaning solution into the flow path of the adhesive B and cleans the flow path.

[0077] In this example, the control unit 7 may have a position adjustment unit 75. The position adjustment unit 75 controls the linear motion mechanism 4 and adjusts the position of the spray 1. The position adjustment unit 75 may control a motor connected to the lead screw 42 and adjust the position of the spray 1. The position adjustment unit 75 may adjust the position of the spray 1 based on the dimensions of the load A. The position adjustment unit 75 may adjust the position of the spray 1 based on data from a camera installed to observe the load A.

[0078] In this example, the palletizing system S controls the industrial robot R to stack the load A onto a pallet. In this process, the palletizing system S controls the coating device X to apply adhesive B to the load A. Preferably, the palletizing system S controls the industrial robot R to hold the load A still above the coating device X, and then controls the coating device X to apply adhesive B to the load A. This holding time may be 1 to 2 seconds. Alternatively, the palletizing system S controls the industrial robot R to move the load A over the coating device X, and then controls the coating device X to apply adhesive B to the load A. Preferably, the palletizing system S decelerates the load A above the coating device X and then applies adhesive B to the load A. Preferably, the palletizing system S controls the industrial robot R to position the load A facing the opposing section 21. More preferably, the palletizing system S controls the industrial robot R to bring the load A close enough to or in contact with the opposing section 21.

[0079] In this example, preferably, the palletizing system S comprises a plurality of coating devices X. This allows the coating devices X to simultaneously apply adhesive B to multiple locations (for example, the four corners) on the bottom surface of the load A. More preferably, the palletizing system S comprises two coating devices X, which are arranged such that the directions of movement of the linear motion mechanism 4 are substantially parallel.

[0080] This example may be modified as follows. Figure 9 illustrates the modified example. In the modified example, the palletizing system S further comprises a conveyor C (see Figure 9). Conveyor C is either a chain conveyor or a roller conveyor.

[0081] In the modified example, the coating device X is installed below the conveying surface of the conveyor C. This allows the coating device X to apply adhesive B through the gaps between the chains of the chain conveyor or the rollers of the roller conveyor.

[0082] In this example, the palletizing system S controls the conveyor C to transport the load A. In this process, the palletizing system S controls the conveyor C to apply adhesive B to the load A. Preferably, the palletizing system S controls the conveyor C to hold the load A still above the coating device X, and then controls the coating device X to apply adhesive B to the load A. This holding time may be 1 to 2 seconds. At this time, the palletizing system S controls the conveyor C so that the gap between the chain of the chain conveyor or the rollers of the roller conveyor is positioned above the coating device X. Alternatively, the palletizing system S controls the conveyor C to pass the load A above the coating device X, and then controls the coating device X to apply adhesive B to the load A. Preferably, the palletizing system S decelerates the load A above the coating device X and then applies adhesive B to the load A. Preferably, the palletizing system S controls the industrial robot R to position the load A facing the opposing section 21. More preferably, the palletizing system S controls the industrial robot R to position the load A close enough to or in contact with the opposing section 21. The palletizing system S controls the industrial robot R to stack the load A, to which the adhesive B has been applied, onto the pallet. [Explanation of Symbols]

[0083] 1: Spray 2: Cover 21: Opposite part 22: Base 3: Mounting section 4: Linear motion mechanism 41: Stage 5: Cabinet 6:Fixing mechanism A: Cargo B: Adhesive S: Palletizing system X: Coating device

Claims

1. An adhesive application device mounted on a palletizing system for applying adhesive to cargo, A spray for injecting adhesive, The system includes a cover that surrounds the spray path of the spray to prevent the adhesive from scattering, The spray direction is upward with respect to the horizontal plane. Coating device.

2. The adhesive is cold glue. The coating apparatus according to claim 1.

3. The cover has a flexible opposing portion, The opposing portion is provided at least on the upper part of the cover. The coating apparatus according to claim 1.

4. The aforementioned cover is removable. The coating apparatus according to claim 1.

5. Linear motion mechanism, The system comprises a housing for containing the spray, The aforementioned linear motion mechanism has a stage, The aforementioned housing is fixed to the stage, The coating apparatus according to claim 1.

6. The spray is provided with a fixing mechanism for securing it to the housing, The fixing mechanism allows for adjustment of the spray direction angle when fixing the spray. The coating apparatus according to claim 5.

7. A method for applying adhesive to a load during palletizing, A process to prevent adhesive splatter by placing a cover below the cargo, The process includes a main step of applying the adhesive that has passed through the inside of the cover to the cargo. Application method.

8. The main step includes applying cold glue as the adhesive. The coating method according to claim 7.

9. The cover has a flexible opposing portion, The adhesive scattering prevention step includes positioning the opposing part opposite the lower part of the load, The coating method according to claim 7.

10. A coating apparatus according to any one of claims 1 to 6, Equipped with industrial robots, Palletizing system.

11. It includes a loading process that involves transporting the cargo and stacking it onto pallets. The loading step includes a coating step of applying an adhesive to the load using the coating method described in any one of claims 7 to 9. Palletizing method.

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