Recording device and transport device

Abstract

To eliminate a possibility that an adhesive is not applied evenly.SOLUTION: A recording device includes: a recording part capable of making records on a medium; a transport part which may transport the medium in a transport direction by a conveyor belt; an adhesive supply part which supplies an adhesive to the conveyor belt; and a movable part which may move the adhesive supply part in a moving direction that is a direction intersecting with the transport direction. The adhesive supply part has a first blade and a second blade which may contact with the conveyor belt. At least a part of the second blade is located at the downstream in the transport direction or the upstream in the moving direction relative to the first blade. The second blade can form the adhesive flowing out from a first end, which is one end of the first blade, in a stripe form while moving the adhesive toward a second end, which is one end of the second blade, on the conveyor belt.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a recording apparatus and a conveying apparatus. [Background technology]

[0002] 2. Description of the Related Art Conventionally, as disclosed in Patent Document 1, a device is known in which a blade is moved by a moving part to level an adhesive on a conveyor belt. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-89806 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the device described in Patent Document 1, there is a risk that the adhesive will flow out from the edge of the blade, resulting in localized thickness, making it difficult to apply the adhesive evenly to the conveyor belt. [Means for solving the problem]

[0005] The recording device includes a recording unit capable of recording on a medium, a conveying unit capable of conveying the medium in a conveying direction by a conveying belt, an adhesive supplying unit that supplies adhesive to the conveying belt, and a moving unit that is capable of moving the adhesive supplying unit in a moving direction that is a direction intersecting the conveying direction, wherein the adhesive supplying unit has a first blade and a second blade that can contact the conveying belt, and at least a portion of the second blade is located downstream in the conveying direction or upstream in the moving direction relative to the first blade, and the second blade is capable of forming a streak-like shape on the conveying belt by moving the adhesive that has flowed out from a first end, which is one end of the first blade, toward a second end, which is one end of the second blade.

[0006] The conveying device includes a conveying section capable of conveying a medium in a conveying direction by a conveying belt, an adhesive supplying section that supplies adhesive to the conveying belt, and a moving section that is capable of moving the adhesive supplying section in a moving direction that is a direction intersecting the conveying direction, and the adhesive supplying section has a first blade and a second blade that can contact the conveying belt, and the second blade is located downstream in the conveying direction or upstream in the moving direction relative to the first blade, and the second blade is capable of forming a streak-like shape on the conveying belt by moving the adhesive that flows out from a first end, which is one end of the first blade, toward a second end, which is one end of the second blade. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a block diagram showing the configuration of a recording apparatus. [Diagram 2] FIG. 1 is a schematic diagram showing a configuration of a recording apparatus. [Diagram 3] FIG. 2 is a schematic diagram showing a main part of an adhesive supplying unit according to the first embodiment. [Figure 4] FIG. 11 is a schematic diagram showing a main part of an adhesive supplying unit according to a second embodiment. [Diagram 5] FIG. 11 is a schematic diagram showing a main part of an adhesive supplying unit according to a third embodiment. [Figure 6] FIG. 13 is a schematic diagram showing a main part of an adhesive supplying unit according to a fourth embodiment. [Figure 7] FIG. 13 is a schematic diagram showing a main part of an adhesive supplying unit according to a fifth embodiment. [Figure 8] FIG. 2 is a block diagram showing a configuration of a transport device. [Figure 9] FIG. 2 is a schematic diagram showing a configuration of a transport device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, the embodiments will be described with reference to the drawings. The directions in the drawings will be described using a three-dimensional coordinate system. For convenience of explanation, the positive direction of the Z axis will be referred to as the upward direction, upward, or simply upward, the negative direction will be referred to as the downward direction, downward, or simply downward, the positive direction of the X axis will be referred to as the right direction, rightward, or simply right, the negative direction will be referred to as the left direction, leftward, or simply left, the positive direction of the Y axis will be referred to as the backward direction, rearward, or simply rearward, and the negative direction will be referred to as the forward direction, forward, or simply forward.

[0009] 1. Recording device configuration 1, the recording apparatus 1 includes a control unit 10, a storage unit 11, a sensor 12, a recording unit 13, a transport unit 14, a moving unit 15, a cleaning unit 30, a wiping unit 31, a drying unit 32, and an adhesive supply unit 40. The configuration of the recording apparatus 1 will be described with reference to FIG. 2 as well. 8 and 9, a transport device 2 described below has a configuration similar to that of the recording device 1 except for at least the recording unit 13. The configuration of the transport device 2 is the same as that of the recording device 1 described below, except for the recording unit 13.

[0010] The control unit 10 includes a CPU (Central Processing Unit) that performs overall control of each part of the recording device 1, a UART (Universal Asynchronous Receiver Transmitter) that manages input and output, and a FPGA (Field Programmable Gate Array) and a PLD (Programmable Logic Device) that are logic circuits. The CPU is also called a processor. The storage unit 11 includes a flash ROM (Read Only Memory), which is a rewritable nonvolatile memory, an HDD (Hard Disk Drive), a RAM (Random Access Memory), which is a volatile memory, and the like. The CPU of the control unit 10 reads out programs such as firmware stored in the non-volatile memory of the storage unit 11, and executes them using the RAM of the storage unit 11 as a working area. The control unit 10 and the storage unit 11 are mounted on a circuit board (not shown).

[0011] The medium M shown in Fig. 2 is, for example, a long piece of fabric made of natural or synthetic fibers. The long piece of fabric is also called a raw cloth. The recording device 1 performs recording on the medium M. Recording on the fabric is also called textile printing, and the medium M is also called a material to be printed. The medium M may be any of plain paper, synthetic paper, and film.

[0012] 2, the conveying unit 14 includes an endless conveying belt 20, a driving roller 14a, and a driven roller 14b. The conveying unit 14 rotates the driving roller 14a counterclockwise by a conveying motor (not shown), and causes the driven roller 14b to follow and rotate counterclockwise. The conveying belt 20 stretched between the driving roller 14a and the driven roller 14b also rotates counterclockwise, which is the rotation direction. The driving and driven relationship between the driving roller 14a and the driven roller 14b may be reversed.

[0013] 2, when the driving roller 14a of the transport unit 14 is taken as a starting point, the cleaning unit 30, the sensor 12, the wiping unit 31, the drying unit 32, the adhesive supply unit 40, and the recording unit 13 are arranged in this order from upstream to downstream in the rotation direction of the transport belt 20. The reverse order to this order is the order from downstream to upstream in the rotation direction of the transport belt 20. In addition, in the rotation direction of the conveyor belt 20, the direction in which the medium M is placed and moves from the driven roller 14b to the driving roller 14a is the forward direction, and the direction in which the medium M is peeled off and moves from the driving roller 14a to the driven roller 14b is the return direction. In FIG. 2, the forward direction is the left direction, and the return direction is the right direction. The medium M placed on the conveyor belt 20 is conveyed in the conveying direction T, which is the forward direction.

[0014] The adhesive supplying unit 40 is detachably mounted on the moving unit 15 using a frame (not shown) and is movable in a rear direction, which is a moving direction S described below. The adhesive supplying unit 40 is also movable in a reverse moving direction R described below, which is the forward direction opposite to the moving direction S, by the moving unit 15. The moving direction S and the reverse moving direction R are directions perpendicular to the conveying direction T.

[0015] The moving unit 15 includes a carriage (not shown) on which the adhesive supply unit 40 can be mounted, a moving belt (not shown) attached to the carriage, a carriage motor (not shown) that drives the moving belt, etc. As described later, the moving unit 15 can also mount the recording unit 13. The electromagnet 50 that attracts the adhesive supplying unit 40 is mounted on the moving unit 15. The electromagnet 50 is controlled by the control unit 10, and makes the adhesive supplying unit 40 detachable from the moving unit 15. Specifically, the adhesive supplying unit 40 can be attracted to and attached to a mounting portion of a carriage containing metal by driving the electromagnet 50. When the driving of the electromagnet 50 stops, the adhesive supplying unit 40 can be removed from the carriage.

[0016] 2, the outer surface of the rotating conveyor belt 20 on which the medium M is placed is referred to as the front surface 20a, and the inner surface of the rotating conveyor belt 20 in contact with the drive roller 14a is referred to as the back surface 20b. Note that, hereinafter, the front surface 20a of the conveyor belt 20 on which the adhesive L is applied is simply referred to as the front surface 20a. As described later, an adhesive L having adhesive properties such as glue is applied to the surface 20a by an adhesive supplying unit 40, and the medium M can be adhesively fixed thereto. The adhesive L contains, for example, a silicone resin.

[0017] The conveyor belt 20 can stably convey the medium M by adhesively fixing the medium M with the adhesive L. In addition, the conveyor belt 20 also allows the medium M to be easily peeled off after recording. The medium M is pulled out from a roll M1 wound in a roll shape and placed on a conveyor belt 20 and conveyed under the control of a control unit 10. In addition, the conveying section 14 may be equipped with at least one of a payout device that pulls out the medium M from the roll body M1 at a position close to the driven roller 14b, and a winding device that winds up the medium M that has been peeled off from the conveying belt 20 at a position close to the drive roller 14a.

[0018] 2, the recording unit 13 includes an inkjet head. The recording device 1 can be equipped with ink cartridges or ink tanks that store ink of each color, for example, CMYK (Cyan, Magenta, Yellow, Black). The recording unit 13 includes a supply mechanism that supplies ink to the head from an ink cartridge, etc. The supply mechanism supplies ink of each color from an ink cartridge, etc. to the corresponding head.

[0019] The recording unit 13 is mounted on a carriage of the moving unit 15, and is moved back and forth by a carriage motor over the medium M. The head of the recording unit 13 ejects ink while moving over the medium M under control of the control unit 10 based on recording data, thereby making it possible to record on the medium M. The recording unit 13 may be configured with a line-type head extending in the front-rear direction. In this case, the recording unit 13 is not mounted on the moving unit 15, but is fixed to the recording apparatus 1. The ink colors may be any combination of four or more colors, including, for example, shades of CMYK. The head of the recording unit 13 may be configured to include a head that ejects a penetrant liquid onto the medium M. The penetrant liquid is a liquid that promotes the permeation of the ink attached to the front surface 20a of the medium M to the back surface 20b.

[0020] The cleaning unit 30 is provided downstream of the drive roller 14a in the rotation direction of the conveyor belt 20. The cleaning unit 30 cleans the surface 20a of the conveyor belt 20 of the conveyor unit 14 after the recording by the recording unit 13 is completed and the medium M has been peeled off, and can remove adhering ink, foreign matter, and the like. The cleaning unit 30 includes a cleaning brush, a brush motor for rotating the cleaning brush, etc. Under the control of the control unit 10, the cleaning unit 30 rotates the cleaning brush while spraying a cleaning liquid, which is a liquid such as water, supplied thereto, and brings the cleaning brush into contact with the surface 20a to clean it.

[0021] The cleaning container 30a stores the cleaning liquid and supplies and drains the water so that the liquid level is constant. The cleaning brush of the cleaning unit 30 is configured to be immersed to a certain depth in the cleaning liquid stored in the cleaning container 30a so that foreign matter and the like that adheres during cleaning can be removed. The cleaning brush may be a rotating brush, a cylindrical cloth or sponge, a brush, or a plate of rubber or resin.

[0022] 2, the sensor 12 includes a transmitting unit 12a, which is a transmitter that transmits a transmission wave TM, and a receiving unit 12b, which is a receiver that receives a reception wave RC. The sensor 12 uses ultrasonic waves of, for example, 30 kHz to 10 MHz. The transmission wave TM transmitted from the transmitting unit 12a is reflected by the surface 20a of the conveyor belt 20, becomes a reception wave RC, and is received by the receiving unit 12b. The sensor 12 can non-contactly detect the distance to the surface 20a, including the thickness of the adhesive L of the conveyor belt 20, by utilizing the time between when the transmission wave TM is transmitted by the transmitting unit 12a and when the reception wave RC is received by the receiving unit 12b.

[0023] Based on the detection result of the sensor 12, the control unit 10 can easily and accurately determine the condition of the adhesive L on the surface 20a, such as the thickness thereof. The adhesive L is consumed and becomes thinner, for example, when the medium M is peeled off the surface 20a or when the surface 20a is cleaned by the cleaning unit 30. That is, the control unit 10 determines that the adhesive L on the surface 20a is thinner as the distance detected by the sensor 12 is longer, whereas the control unit 10 determines that the adhesive L on the surface 20a is thicker as the distance detected by the sensor 12 is shorter.

[0024] The wiping unit 31 wipes off the cleaning liquid and foreign matter adhering to the surface 20a cleaned by the cleaning unit 30. As shown in Fig. 2, the wiping unit 31 is provided downstream of the cleaning unit 30 and upstream of the adhesive supply unit 40 in the rotation direction of the conveyor belt 20. The wiping unit 31 includes a wiping blade 31a and an adjustment unit 31b. The wiping blade 31a may be made of wiper-shaped rubber or plate-shaped resin. As the conveyor belt 20 is conveyed, the wiping blade 31a, with its tip in contact with the surface 20a, can wipe the surface 20a of the conveyor belt 20 being conveyed. The adjustment unit 31b is configured to be able to adjust the position of the wiping blade 31a up and down under the control of the control unit 10.

[0025] The surface 20a from which the wiping unit 31 has wiped off the cleaning liquid and the like is then subjected to a process of drying the remaining cleaning liquid by the drying unit 32. The drying unit 32 is provided downstream of the wiping unit 31 and upstream of the recording unit 13 in the rotation direction of the conveyor belt 20. The drying unit 32 is configured to include at least one of a blower and a heater. The drying unit 32 can dry the cleaning liquid attached to the surface 20a in a non-contact manner by using at least one of the airflow from the blower and the heat from the heater. The surface 20a that has been cleaned by the cleaning unit 30 and dried by the drying unit 32 is ready for application of the adhesive L by the adhesive supply unit 40.

[0026] Note that only one of the wiping unit 31 and the drying unit 32 may be provided as long as a predetermined amount of cleaning liquid attached to the surface 20a can be removed by either one of them. Alternatively, depending on the environment in which the recording apparatus 1 is installed, such as when the recording apparatus 1 is installed in a dry environment, the wiping unit 31 and the drying unit 32 may not be provided. Similarly, when the cleaning unit 30 is not provided, the wiping unit 31 and the drying unit 32 may not be provided.

[0027] When the detection result of the sensor 12 indicates that the thickness of the adhesive L on the surface 20a of the conveyor belt 20 is thinner than a predetermined value, the control unit 10 causes the adhesive supply unit 40 to apply the adhesive L to the surface 20a. The adhesive supplying unit 40 is provided downstream of the drying unit 32 and upstream of the recording unit 13 in the rotation direction of the conveyor belt 20. The adhesive supplying unit 40 and the recording unit 13 may be mounted at the same position in the conveying direction T in the moving unit 15.

[0028] 2. Structure of adhesive supply section The following describes in detail the configuration of the adhesive supplying unit 40 that supplies the adhesive L to the surface 20a of the conveyor belt 20. In addition, hereinafter, the supply of the adhesive L by the adhesive supplying unit 40 to the conveyor belt 20 is also referred to as "applying."

[0029] 2-1. First embodiment The adhesive supplying section 40 according to the first embodiment will be described with reference to Fig. 3. While the conveyor belt 20 is conveyed in the conveying direction T by the conveyor 14, the adhesive supplying section 40 applies adhesive L to the surface 20a. The adhesive supplying unit 40 is mounted on the moving unit 15 and is movable in the moving direction S. When applying the adhesive L, the recording unit 13 may be detached from the moving unit 15. When applying the adhesive L, no medium M is placed on the conveyor belt 20. The adhesive supplying unit 40 is capable of contacting the surface 20a. Note that the operation of each component is performed under the control of the control unit 10, but in the following description, the control of the control unit 10 will be omitted.

[0030] The adhesive supplying unit 40 has a first adhesive supplying port 46, a first blade 41, and a second blade 42 arranged from upstream to downstream in the conveying direction T. The first blade 41 and the second blade 42 are in contact with the surface 20a. The first blade 41 and the second blade 42 may be made of wiper-shaped rubber or plate-shaped resin. The adhesive supply unit 40, which includes the first adhesive supply port 46, the first blade 41, and the second blade 42, can be moved by the conveyor 14 in a relative movement direction, which is a direction in which the adhesive supply unit 40 moves relatively to the conveyor belt 20. In the first embodiment, the relative movement direction is the conveying direction T. The direction perpendicular to the relative movement direction is the movement direction S.

[0031] The first adhesive supply port 46 has a supply port for supplying the adhesive L. The supply port is constituted by, for example, a nozzle. The first adhesive supply port 46 can be configured to have a plurality of nozzles arranged in a row at predetermined intervals according to the width of the first blade 41. The first adhesive supply port 46 may also be configured to have one nozzle disposed at a position corresponding to the center of the width of the first blade 41. 3, the first adhesive supply port 46 is configured by arranging a plurality of nozzles in a row. The control unit 10 can control the number of nozzles that supply the adhesive L. The first adhesive supply port 46 is disposed so as to incline from the upstream to the downstream in the conveyance direction T relative to the conveyor belt 20 from the front right to the rear left.

[0032] The first blade 41 is located downstream of the first adhesive supply port 46 in the conveying direction T, and is disposed so as to be parallel to the first adhesive supply port 46. That is, similar to the first adhesive supply port 46, the first blade 41 is disposed so as to be inclined from the front right to the rear left with respect to the conveyor belt 20 from the upstream to downstream in the conveying direction T. On the other hand, the second blade 42 is disposed so as to be inclined from the rear right to the front left with respect to the conveyor belt 20 from the upstream to the downstream in the conveying direction T. That is, the first blade 41 and the second blade 42 have a predetermined inclination in different directions with respect to the moving direction S, which is a direction perpendicular to the conveying direction T. Alternatively, the first adhesive supply port 46 and the first blade 41 may be arranged to incline from the rear right to the front left, and the second blade 42 may be arranged to incline from the front right to the rear left, from the upstream to the downstream in the transport direction T.

[0033] Here, one end of the first blade 41, that is, the left rear end, is referred to as a first end 41a, and the other end of the first blade 41, that is, the right front end, is referred to as the other end 41b of the first blade 41. Moreover, one end of second blade 42, that is, the left front end, is referred to as second end 42a. The other end of second blade 42, that is, the right rear end, is referred to as the other end 42b of second blade 42.

[0034] The first blade 41 and the second blade 42 are inclined such that the other end 41b of the first blade 41 and the other end 42b of the second blade 42, which are both ends on the upstream side, are separated from each other upstream in the conveying direction T. On the other hand, the first blade 41 and the second blade 42 are inclined such that the first end 41a and the second end 42a, which are both ends on the downstream side, are close to each other downstream in the conveying direction T. As a result, at least a portion of the second blade 42 is located downstream in the conveying direction T with respect to the first blade 41. Furthermore, at least a portion of second blade 42 is disposed so as to overlap first end 41a of first blade 41 when viewed along the X-axis.

[0035] The application and flow of the adhesive L onto the surface 20a by the adhesive supplying unit 40 will be described from the upstream to downstream in the conveying direction T. The adhesive supplying section 40 is located upstream in the transport direction T and supplies the adhesive L from a first adhesive supplying port 46 to the surface 20a.

[0036] The supplied adhesive L is first applied and leveled by the first blade 41 onto the surface 20a being transported along the transport direction T. Next, the adhesive L is applied and leveled by the second blade 42 onto the surface 20a. The first blade 41, which first applies and smoothes the adhesive L supplied from the first adhesive supply port 46, is mounted on the moving part 15 in a state in which it comes into stronger contact with the surface 20a, i.e., a stronger load is applied toward the surface 20a, compared to the second blade 42, which applies and smoothes the adhesive next.

[0037] 3 does not show the adhesive L that has been applied and leveled on the surface 20a by the first blade 41 and the second blade 42. The adhesive L is applied to the surface 20a along the transport direction T over a length corresponding to the movement direction S of the first blade 41 and the second blade 42. At this time, the excess adhesive L that is not applied to the surface 20a and protrudes from the first blade 41 is indicated as a first adhesive L1.

[0038] The first adhesive L1 flows from the upstream to the downstream in the conveyance direction T, from the front right to the rear left, along the inclination of the first blade 41. Then, the first adhesive L1 flows out from the first end 41a of the first blade 41. As described above, at least a portion of the second blade 42 is located downstream in the conveyance direction T relative to the first blade 41. As a result, the second blade 42 can apply and level the adhesive L, as well as the first adhesive L1 that has flowed out from the first end 41a of the first blade 41, to the surface 20a. At this time, the excess first adhesive L1 that is not applied to the surface 20a and protrudes from the second blade 42 is referred to as the second adhesive L2.

[0039] The first adhesive L1 flows from upstream to downstream in the conveying direction T, and from the rear right to the front left, along the inclination of the second blade 42. Then, the first adhesive L1 flows out from the second end 42a of the second blade 42 as the second adhesive L2. That is, the second blade 42 can form the first adhesive L1, which has flowed out from at least the first end 41a of the first blade 41, into streaks of the second adhesive L2 on the conveyor belt 20 in the conveying direction T, which is the direction of relative movement. In this way, the adhesive supply section 40 moves the first adhesive L1 flowing out from the first end 41a of the first blade 41 toward the second end 42a of the second blade 42 on the surface 20a, forming a partially thick, streaky second adhesive L2 on the surface 20a.

[0040] The conveyor 14 stops once after rotating around the conveyor belt 20 for one revolution. At this time, the adhesive L is applied to the surface 20a over the length of the first blade 41 and the second blade 42 in the moving direction S for one revolution of the conveyor belt 20. Thereafter, the moving unit 15 moves the adhesive supplying unit 40 in the moving direction S by a predetermined distance. Then, as described above, the adhesive supplying unit 40 again repeats the application and flow of the adhesive L to the conveyor belt 20 conveyed by the conveying unit 14. The adhesive supplying unit 40 repeats these operations across the width direction of the conveyor belt 20, which is the moving direction S. As a result, the adhesive supplying unit 40 can apply the adhesive L across the entire width of the surface 20a for each revolution of the surface 20a.

[0041] As the conveyor belt 20 rotates, the third adhesive L3, which is an old streak-like mark formed on the surface 20a before the second adhesive L2, reaches the adhesive supplying unit 40 moving in the moving direction S. The third adhesive L3 can be leveled on the conveyor belt 20 by the first blade 41. That is, while moving a predetermined distance in the moving direction S, the adhesive supplying unit 40 can apply the adhesive L and level the third adhesive L3 formed in a streak-like shape on the conveyor belt 20 that has rotated. The adhesive supplying unit 40 repeats these operations across the width direction of the conveyor belt 20, and can apply the adhesive L while uniformly distributing the third adhesive L3 across the entire width of the conveyor belt 20. The adhesive supplying unit 40 can apply the adhesive L so as not to leave any of the third adhesive L3 on the surface 20a.

[0042] The adhesive supplying unit 40 may be moved in the moving direction S by the moving unit 15 while applying the adhesive L to the conveyor belt 20 conveyed in the conveying direction T by the conveying unit 14. The adhesive supplying unit 40 may also be moved by the conveying unit 14 and the moving unit 15 in a relative movement direction in which the adhesive supplying unit 40 moves relative to the conveyor belt 20. In this case, the relative movement direction of the adhesive supplying unit 40 is a direction obtained by combining the movement direction S and the opposite direction to the transport direction T, specifically, a right front direction. In this manner, the first blade 41 and the second blade 42 can be moved in a relative movement direction with respect to the conveyor belt 20 by at least one of the conveyor unit 14 and the moving unit 15.

[0043] Incidentally, as described above, the control unit 10 determines that the thickness of the adhesive L on the surface 20a is thinner as the distance detected by the sensor 12 is longer. When the control unit 10 determines that the distance detected by the sensor 12 exceeds a predetermined value while recording on the medium M by the recording unit 13, it notifies the worker via the input / output unit (not shown) that it is necessary to apply the adhesive L to the conveyor belt 20. The input / output unit is, for example, a user interface having a liquid crystal panel, a keyboard, a mouse, etc. The worker who has received the notification from the input / output unit removes the medium M from the conveyor belt 20, and issues an instruction via the input / output unit to apply the adhesive L to the conveyor belt 20. Based on the instruction from the input / output unit, the control unit 10 controls each component unit to apply the adhesive L to the conveyor belt 20 as described above.

[0044] The control unit 10 can adjust the amount of adhesive L applied to the surface 20a so as to obtain a predetermined thickness while obtaining the thickness of the adhesive L on the surface 20a by the sensor 12. For example, when the relative movement direction of the adhesive supplying unit 40 is the conveying direction T, the control unit 10 can adjust the amount of adhesive applied to the surface 20a by changing the conveying speed of the conveyor belt 20 during application. The control unit 10 can reduce the amount of adhesive applied as the conveying speed of the conveyor belt 20 is increased. As described later, when the relative movement direction is the moving direction S, the control unit 10 can also reduce the amount of adhesive applied as the moving speed of the moving unit 15 is increased.

[0045] Furthermore, for example, the control unit 10 can adjust the amount of application by changing the position of each blade with respect to the surface 20a using the first lifting unit 48 described below or the like. The control unit 10 can reduce the amount of application by causing each blade to contact the surface 20a with a stronger load using the first lifting unit 48 or the like. Furthermore, for example, the control unit 10 can adjust the amount of adhesive L to be applied by changing the amount of adhesive L supplied by the first adhesive supply port 46 or the like. The control unit 10 can increase the amount of adhesive L to be applied by increasing the number of nozzles of the first adhesive supply port 46 that supply the adhesive. The control unit 10 can also adjust the amount of adhesive L applied to the surface 20a by any combination of the above.

[0046] In addition, the adhesive supply section 40 described in the first embodiment can move the conveyor belt 20 in the moving direction S while conveying the conveyor belt 20 in the conveying direction T, so that it is possible to efficiently apply the adhesive L to the entire surface 20a of the conveyor belt 20.

[0047] 2-2. Second embodiment An adhesive supply unit 40 according to the second embodiment will be described with reference to Fig. 4. Note that the second embodiment will be described mainly with respect to configurations different from the first embodiment, and a description of configurations similar to those of the first embodiment will be omitted.

[0048] In the second embodiment, in comparison with the first embodiment, a third blade 43 is added to the adhesive supplying unit 40. The third blade 43 may be made of wiper-shaped rubber or plate-shaped resin. The conveyor belt 20 can be moved in the conveying direction T by the conveyor unit 14. That is, by the movement of the conveyor belt 20, the adhesive supply unit 40 including the first adhesive supply port 46, the first blade 41, the second blade 42, and the third blade 43 can be moved in the opposite direction to the conveying direction T, which is the relative movement direction with respect to the conveyor belt 20.

[0049] The first adhesive supply port 46 and the first blade 41 extend in the movement direction S. The first adhesive supply port 46 and the first blade 41 are not inclined with respect to the movement direction S, which is a direction perpendicular to the conveyance direction T. The first blade 41 is disposed in parallel with the first adhesive supply port 46 downstream in the transport direction T of the first adhesive supply port 46 .

[0050] The second blade 42 and the third blade 43 have a predetermined inclination with respect to a direction perpendicular to the conveying direction T. The third blade 43, together with the second blade 42, is disposed downstream of the first blade 41 in the conveying direction T. The third blade 43 is disposed so as to incline from the front right to the rear left with respect to the conveyor belt 20 from the upstream to the downstream in the conveying direction T. The third blade 43 is disposed so as to be line-symmetrical to the second blade 42 with respect to the conveying direction T. As a result, the second blade 42 and the third blade 43 are inclined so as to approach each other in the conveying direction T. That is, the second blade 42 and the third blade 43 have a predetermined inclination in a different direction with respect to the moving direction S.

[0051] Here, one end of third blade 43, that is, the left rear end, is referred to as third end 43a. The other end of third blade 43, that is, the right front end, is referred to as other end 43b of third blade 43. The third blade 43 and the second blade 42 are inclined upstream in the conveying direction T such that the other end 43b of the third blade 43 and the other end 42b of the second blade 42, which are both ends on the upstream side, are separated from each other. On the other hand, the third blade 43 and the second blade 42 are inclined downstream in the conveying direction T such that the third end 43a and the second end 42a, which are both ends on the downstream side, are close to each other.

[0052] As a result, at least a portion of the second blade 42 and at least a portion of the third blade 43 are located downstream in the conveying direction T relative to the first blade 41. In addition, at least a portion of the second blade 42 is arranged so as to overlap with the first end 41a of the first blade 41 when viewed along the X-axis, and at least a portion of the third blade 43 is arranged so as to overlap with the other end 41b of the first blade 41 when viewed along the X-axis.

[0053] The application and flow of the adhesive L onto the surface 20a by the adhesive supplying unit 40 will be described from upstream to downstream in the conveyance direction T. It is assumed that the third blade 43 is also in contact with the surface 20a. The adhesive L supplied from the first adhesive supply port 46 is applied to the surface 20a and leveled by the first blade 41, and then applied and leveled by the second blade 42 and the third blade 43.

[0054] The first blade 41 extends in a moving direction S, which is a direction intersecting the conveying direction T. Therefore, the excess first adhesive L1 protruding from the first blade 41 flows out from both ends of the first blade 41, that is, a first end 41a and the other end 41b of the first blade 41. As described above, at least a portion of the second blade 42 and at least a portion of the third blade 43 are located downstream in the conveying direction T relative to the first blade 41. As a result, the second blade 42 can apply and level the adhesive L to the surface 20a, including the first adhesive L1 that has flowed out from the first end 41a of the first blade 41. Moreover, the third blade 43 can apply and level the adhesive L to the surface 20a, including the first adhesive L1 that has flowed out from the other end 41b of the first blade 41.

[0055] At this time, the excess first adhesive L1 that is not applied to the surface 20a and that protrudes from the second blade 42 and the third blade 43 is shown as the second adhesive L2. The second blade 42 causes the first adhesive L1 to flow from upstream to downstream in the conveying direction T, and from the rear right to the front left, along the inclination of the second blade 42. Then, the second blade 42 causes the first adhesive L1 to flow out from a second end 42a of the second blade 42 as a second adhesive L2. That is, the second blade 42 can move the first adhesive L1 flowing out from the first end 41a of the first blade 41 toward the second end 42a on the conveyor belt 20, forming streaks of the second adhesive L2 in the conveying direction T.

[0056] On the other hand, the third blade 43 causes the first adhesive L1 to flow from the upstream to the downstream in the conveyance direction T, from the front right to the rear left, along the inclination of the third blade 43. Then, the third blade 43 causes the first adhesive L1 to flow out from the third end 43a of the third blade 43 as the second adhesive L2. That is, the third blade 43 can move the first adhesive L1 flowing out from the other end 41b of the first blade 41 toward the third end 43a on the conveyor belt 20, forming streaks of the second adhesive L2 in the conveying direction T.

[0057] In this way, the second blade 42 and the third blade 43 move the first adhesive L1 flowing out from both ends of the first blade 41 toward the second end 42a of the second blade 42 and the third end 43a of the third blade 43, respectively, and collect it downstream in the conveying direction T, causing it to flow out as the second adhesive L2. That is, the second adhesive L2 flows out from between the second blade 42 and the third blade 43. As a result, a streaky, thick second adhesive L2 is partially formed on the surface 20a between the second blade 42 and the third blade 43.

[0058] After the conveying unit 14 rotates the conveyor belt 20 once, the moving unit 15 moves the adhesive supplying unit 40 a predetermined distance in the moving direction S. Then, as described above, the adhesive supplying unit 40 again repeats the application and flow of the adhesive L to the conveyor belt 20 being conveyed. The adhesive supplying unit 40 repeats these operations across the width of the conveyor belt 20, and can apply the adhesive L across the entire width of the surface 20a for each revolution of the conveyor belt 20.

[0059] As the conveyor belt 20 rotates, the third adhesive L3, which is an old streak-like mark formed on the surface 20a before the second adhesive L2, reaches the adhesive supply unit 40 that has moved in the moving direction S. The third adhesive L3 can be evenly distributed on the conveyor belt 20 by the first blade 41. In this manner, while moving a predetermined distance in the moving direction S, the adhesive supplying section 40 can apply the adhesive L over the entire width of the surface 20a being transported and can also level the third adhesive L3.

[0060] The adhesive supplying section 40 can also be moved in the relative movement direction with respect to the conveyor belt 20 by both the conveying section 14 and the moving section 15 to apply the adhesive L. In this manner, the first blade 41, the second blade 42, and the third blade 43 can be moved in a relative movement direction with respect to the conveyor belt 20 by at least one of the conveyor unit 14 and the moving unit 15.

[0061] In addition, the adhesive supply section 40 described in the second embodiment can move the conveyor belt 20 in the moving direction S while conveying the conveyor belt 20 in the conveying direction T, so that it is possible to efficiently apply the adhesive L to the entire surface 20a of the conveyor belt 20.

[0062] 2-3.Third embodiment An adhesive supplying unit 40 according to a third embodiment will be described with reference to Fig. 5. Note that the third embodiment will be described mainly with respect to configurations different from those of the second embodiment, and a description of configurations similar to those of the second embodiment will be omitted.

[0063] The third embodiment is different from the second embodiment in the shapes of the second blade 42 and the third blade 43 of the adhesive supply unit 40. The second blade 42 and the third blade 43 have a so-called L shape and are configured to be line-symmetrical with each other with respect to the conveying direction T.

[0064] Specifically, the second blade 42 and the third blade 43 extend backward and forward from the second end 42a and the third end 43a, which are adjacent to each other. That is, the second blade 42 extends toward the other end 42b opposite the second end 42a without inclining with respect to the moving direction S. The third blade 43 extends toward the other end 43b opposite the third end 43a without inclining with respect to the moving direction S. The other end 42b of the second blade 42 is provided with a second blade protrusion 42c protruding in the opposite direction to the conveying direction T. The other end 43b of the third blade 43 is provided with a third blade protrusion 43c protruding in the opposite direction to the conveying direction T.

[0065] The second blade protrusion 42c and the third blade protrusion 43c are positioned outwardly relative to the first blade 41 in the transport direction T, which is the direction of relative movement. That is, the second blade 42 has a second blade protrusion 42c protruding toward the first blade 41 in a range not overlapping with the first blade 41 in the conveying direction T. Moreover, the third blade 43 has a third blade protrusion 43c protruding toward the first blade 41 in a range not overlapping with the first blade 41 in the conveying direction T.

[0066] As a result, the second blade 42 can direct the first adhesive L1, which has flowed out from the first end 41a of the first blade 41, toward the second end 42a from the second blade protrusion 42c. Moreover, the third blade 43 can direct the first adhesive L1, which has flowed out from the other end 41b of the first blade 41, toward the third end 43a from the third blade protrusion 43c.

[0067] The first adhesive L1 flowing out from between the second blade 42 and the third blade 43 is partially formed on the surface 20a as a thick, streaky second adhesive L2. The adhesive supplying unit 40 repeats these operations across the width of the conveyor belt 20. In this manner, the adhesive supplying unit 40 moves in the moving direction S for each revolution of the conveyor belt 20, and can apply the adhesive L across the entire width of the conveyed surface 20a and level the third adhesive L3.

[0068] In addition, the adhesive supply section 40 described in the third embodiment can move the conveyor belt 20 in the moving direction S while conveying the conveyor belt 20 in the conveying direction T, so that it is possible to efficiently apply the adhesive L to the entire surface 20a of the conveyor belt 20.

[0069] 2-4. Fourth embodiment An adhesive supplying unit 40 according to a fourth embodiment will be described with reference to Fig. 6. Note that the fourth embodiment will be described mainly with respect to configurations different from the second embodiment, and a description of configurations similar to those of the second embodiment will be omitted.

[0070] In the fourth embodiment, the adhesive supplying unit 40 is mounted on the moving unit 15 in a position rotated 90 degrees clockwise as viewed from above compared to the second embodiment. Then, with the conveyor belt 20 stopped, the adhesive supplying unit 40 is moved in the moving direction S by the moving unit 15 to apply the adhesive L to the surface 20a. In the fourth embodiment, the direction in which the adhesive supplying unit 40 moves relative to the conveyor belt 20 is a moving direction S, and the direction perpendicular to the relative moving direction is a transport direction T. That is, the adhesive supply unit 40 including the first adhesive supply port 46, the first blade 41, the second blade 42, and the third blade 43 can be moved by the moving unit 15 in a moving direction S, which is the relative moving direction with respect to the conveyor belt 20.

[0071] In contrast to the second embodiment, in the fourth embodiment, the adhesive supply unit 40 rotates 90 degrees clockwise, so that the first adhesive supply port 46 and the first blade 41 extend in the conveyance direction T. In other words, the first adhesive supply port 46 and the first blade 41 are not inclined with respect to the conveyance direction T. The first blade 41 is disposed in parallel to the first adhesive supply port 46 at a position upstream of the first adhesive supply port 46 in the moving direction S of the first adhesive supply port 46 . The second blade 42 and the third blade 43 have a predetermined inclination with respect to the conveying direction T. The second blade 42 and the third blade 43 are inclined so as to approach each other toward the opposite side of the moving direction S. That is, the second blade 42 and the third blade 43 have a predetermined inclination with respect to the conveying direction T in different directions.

[0072] The second blade 42 and the third blade 43 can be moved in the up and down direction by a first lifting section 48. The first lifting section 48 is configured, for example, by a so-called rack and pinion. A second lifting section 49 described later is configured in the same manner. The first lifting / lowering unit 48 moves the second blade 42 and the third blade 43 downward, so that the second blade 42 and the third blade 43 come into contact with the surface 20a, enabling application of the adhesive L. The first lifting / lowering unit 48 also moves the second blade 42 and the third blade 43 upward, so that the second blade 42 and the third blade 43 can be moved away from the surface 20a without contacting it. The first lifting / lowering unit 48 may also be capable of moving the first blade 41 in the up and down direction.

[0073] The second blade 42 and the third blade 43 are moved downward by the first lifting unit 48 and come into contact with the surface 20a. The adhesive supplying unit 40 is moved by the moving unit 15 in the moving direction S from the rear end, which is one end of the width of the conveyor belt 20, to the front end, which is the other end. At this time, the adhesive L is supplied to the surface 20a from the first adhesive supply port 46. The adhesive L is leveled while being applied by the first blade 41, and excess first adhesive L1 flows out from both ends of the first blade 41.

[0074] At least a portion of the second blade 42 and at least a portion of the third blade 43 are located upstream of the first blade 41 in the movement direction S. In addition, at least a portion of the second blade 42 is arranged so as to overlap with the first end 41a of the first blade 41 when viewed along the Y axis, and at least a portion of the third blade 43 is arranged so as to overlap with the other end 41b of the first blade 41 when viewed along the Y axis.

[0075] As a result, the second blade 42 can guide the first adhesive L1 flowing out from the first end 41a of the first blade 41 toward the second end 42a, forming the second adhesive L2. The third blade 43 can guide the first adhesive L1 flowing out from the other end 41b of the first blade 41 toward the third end 43a of the third blade 43, forming the second adhesive L2. The first adhesive L1 flowing out from between the second blade 42 and the third blade 43 is formed as a partially thick, streaky second adhesive L2 between the second blade 42 and the third blade 43 on the surface 20a.

[0076] When the adhesive supplying section 40 is moved in the moving direction S by the moving section 15 and reaches the front end of the width of the conveyor belt 20, the adhesive L has been applied over the entire width of the surface 20a. The second blade 42 and the third blade 43 are moved upward by the first lifting unit 48 and separated from the surface 20a. The adhesive supply unit 40 is moved back in the rear direction, which is the opposite direction to the moving direction S, by the moving unit 15. Next, the conveying unit 14 conveys the conveyor belt 20 in the conveying direction T by a predetermined distance.

[0077] In this manner, the adhesive supplying unit 40 applies the adhesive L to the front surface 20a only when moving in the moving direction S, which is one direction. When the adhesive supply unit 40 moves in the moving direction S and applies adhesive L to the surface 20a after being transported a predetermined distance at a time, the first blade 41 can also smooth out old streaks of the third adhesive L3 that formed before the second adhesive L2 was applied.

[0078] Then, as described above, the adhesive supplying unit 40 again comes into contact with the surface 20a and moves in the moving direction S, repeating the application and flow of the adhesive L. The adhesive supplying unit 40 repeats these operations in the rotational direction of the conveyor belt 20, and can apply the adhesive L while leveling the third adhesive L3 over the entire length of the conveyor belt 20.

[0079] The adhesive supplying unit 40 can also be moved in a relative movement direction with respect to the conveyor belt 20 by both the conveying unit 14 and the moving unit 15 to apply the adhesive L. In this case, the relative movement direction is a right front direction. The first blade 41, the second blade 42, and the third blade 43 can be moved in a relative movement direction with respect to the conveyor belt 20 by at least one of the conveyor unit 14 and the moving unit 15.

[0080] In the above-described fourth embodiment, the adhesive supply unit 40 is rotated 90 degrees clockwise compared to the second embodiment. As another form of the fourth embodiment, the adhesive supply unit 40 shown in the first embodiment may be mounted on the moving unit 15 in a position rotated 90 degrees clockwise. In this case as well, while the adhesive supply unit 40 is moved in the moving direction S by the moving unit 15, the adhesive L can be applied to the surface 20a while the second adhesive L2 as shown in the first embodiment can be leveled.

[0081] In addition, since the adhesive supplying unit 40 described in the fourth embodiment does not need to be moved in a circular manner in the conveying direction T of the conveyor belt 20, the streaky second adhesive L2 formed by the movement in the moving direction S does not move downward. Therefore, downward dripping that occurs when the adhesive L is used can be suppressed, so that the application of the adhesive supplying unit 40 according to the fourth embodiment is particularly preferable when the viscosity of the adhesive L is low.

[0082] Fifth embodiment An adhesive supplying unit 40 according to a fifth embodiment will be described with reference to Fig. 7. Note that the fifth embodiment will be described mainly with respect to configurations different from those of the fourth embodiment, and a description of configurations similar to those of the fourth embodiment will be omitted.

[0083] In the fifth embodiment, unlike the fourth embodiment, the adhesive supplying unit 40 has a configuration capable of applying the adhesive L to the surface 20a also in a reverse movement direction R that is the opposite direction to the movement direction S. The reverse movement direction R is the rear direction. In the fifth embodiment, compared to the fourth embodiment, the adhesive supplying section 40 is configured by adding a fourth blade 44, a fifth blade 45, a second lifting section 49, and a second adhesive supplying port 47. These are disposed so as to be line-symmetrical with respect to the left-right extending direction of first blade 41. Fourth blade 44 and fifth blade 45 may be made of wiper-shaped rubber or plate-shaped resin. The fourth blade 44 and the fifth blade 45 have a predetermined inclination in different directions with respect to the transport direction T.

[0084] The adhesive supplying section 40, which includes the first adhesive supplying port 46, the second adhesive supplying port 47, the first blade 41, the second blade 42, the third blade 43, the fourth blade 44, and the fifth blade 45, can be moved in a moving direction S and a reverse moving direction R by the moving section 15. In the fifth embodiment, the directions of relative movement of the adhesive supplying section 40 with respect to the conveyor belt 20 are the moving direction S and the reverse moving direction R, and the direction perpendicular to the relative moving direction is the conveying direction T. The second lifting unit 49 is capable of moving the fourth blade 44 and the fifth blade 45 in the vertical direction.

[0085] Specifically, in the adhesive supply section 40, the second blade 42, the third blade 43, and the first lifting section 48 are arranged rearward relative to the first blade 41, and the fourth blade 44, the fifth blade 45, and the second lifting section 49 are arranged in front of it in an axisymmetrical manner. In addition, in the adhesive supplying section 40, the first adhesive supplying port 46 is disposed in front of the first blade 41, and the second adhesive supplying port 47 is disposed line-symmetrically behind the first blade 41.

[0086] In this way, first adhesive supply port 46 is disposed downstream of first blade 41 in the movement direction S, and can supply adhesive L toward first blade 41 while moving in the movement direction S. Second adhesive supply port 47 is disposed downstream of first blade 41 in the reverse movement direction R, and can supply adhesive L toward first blade 41 while moving in the reverse movement direction R.

[0087] The case where the adhesive supplying unit 40 applies the adhesive L to the surface 20a while moving in the moving direction S is similar to the case of the fourth embodiment. However, at this time, the second lifting unit 49 moves the fourth blade 44 and the fifth blade 45 upward so as to move them away from the surface 20a. The moving section 15 moves the adhesive supplying section 40 in the moving direction S while applying adhesive L to the surface 20a, and when it reaches the front end of the width of the conveyor belt 20, the first lifting section 48 moves the second blade 42 and the third blade 43 upward so as to move them away from the surface 20a. Then, the conveying section 14 conveys the conveyor belt 20 in the conveying direction T for a predetermined distance.

[0088] Next, the second lifting section 49 moves the fourth blade 44 and the fifth blade 45 downward until they come into contact with the surface 20a. While the conveyor belt 20 is stopped, the adhesive supply section 40 is moved in the reverse movement direction R from the front end to the rear end of the width of the conveyor belt 20 by the moving section 15, thereby applying adhesive L to the conveyor belt 20. In this manner, the adhesive supply unit 40 applies the adhesive L to the surface 20a when moving in both directions, the moving direction S and the reverse moving direction R.

[0089] The fourth blade 44 and the fifth blade 45 of the adhesive supplying unit 40 are inclined so as to approach each other toward the opposite side of the reverse movement direction R. The first blade 41 extends so as to be perpendicular to the reverse movement direction R. At least a portion of the fourth blade 44 and at least a portion of the fifth blade 45 are located upstream of the first blade 41 in the reverse movement direction R.

[0090] In addition, at least a portion of the fourth blade 44 is arranged so as to overlap with the first end 41a of the first blade 41 when viewed along the Y axis, and at least a portion of the fifth blade 45 is arranged so as to overlap with the other end 41b of the first blade 41 when viewed along the Y axis.

[0091] The adhesive L is supplied to the surface 20a of the conveyor belt 20 from a second adhesive supply port 47 downstream in the reverse movement direction R relative to the first blade 41. The adhesive L is leveled while being applied by the first blade 41, and excess first adhesive L1 flows out from both ends of the first blade 41. As described above, at least a portion of the fourth blade 44 and at least a portion of the fifth blade 45 are located upstream of the first blade 41 in the reverse movement direction R.

[0092] As a result, the fourth blade 44 can cause the first adhesive L1 flowing out from the first end 41a of the first blade 41 to flow toward the fourth end 44a, forming the second adhesive L2. Also, the fifth blade 45 can cause the first adhesive L1 flowing out from the other end 41b of the first blade 41 to flow toward the fifth end 45a of the fifth blade 45, forming the second adhesive L2. The first adhesive L1 flowing out from between the fourth blade 44 and the fifth blade 45 is formed as a partially thick, streaky second adhesive L2 between the fourth blade 44 and the fifth blade 45 on the surface 20a.

[0093] When the adhesive supplying section 40 is moved in the reverse movement direction R by the moving section 15 and reaches the rear end of the width of the conveyor belt 20, the adhesive L has been applied over the entire width of the surface 20a. The fourth blade 44 and the fifth blade 45 are moved upward by the second lifting unit 49 and separated from the surface 20a. Next, the conveyor unit 14 conveys the conveyor belt 20 in the conveying direction T by a predetermined distance.

[0094] In this manner, the adhesive supplying unit 40, while moving in the moving direction S and the reverse moving direction R, applies the adhesive L to the surface 20a after it has been transported a predetermined distance at a time. When the adhesive supply unit 40 applies adhesive L to the surface 20a while moving in the moving direction S and the reverse moving direction R, the first blade 41 can also smooth out old streaks of the third adhesive L3 that formed before the second adhesive L2.

[0095] Then, as described above, the adhesive supplying unit 40 repeats the application and flow of the adhesive L while moving again in the moving direction S and the reverse moving direction R. The adhesive supplying unit 40 repeats these operations in the rotational direction of the conveyor belt 20, and can apply the adhesive L while leveling the third adhesive L3 over the entire length of the conveyor belt 20.

[0096] The adhesive supplying unit 40 can also be moved in a relative movement direction with respect to the conveyor belt 20 by both the conveying unit 14 and the moving unit 15 to apply the adhesive L. In this case, the relative movement direction is the right front direction or the right rear direction. In addition, the first blade 41, the second blade 42, the third blade 43, the fourth blade 44, and the fifth blade 45 can be moved in a relative movement direction with respect to the conveying belt 20 by at least one of the conveying section 14 and the moving section 15.

[0097] In addition, since the adhesive supplying unit 40 described in the fifth embodiment does not need to be moved in a circular manner in the conveying direction T of the conveyor belt 20, the streaky second adhesive L2 and third adhesive L3 formed by moving in the moving direction S and the reverse moving direction R do not move downward. Therefore, downward dripping that occurs when the adhesive L is used can be suppressed, and therefore, when the viscosity of the adhesive L is low, application of the adhesive supplying unit 40 according to the fourth embodiment is particularly preferable.

[0098] In the embodiment described in this specification, the first blade 41, the second blade 42, the third blade 43, the fourth blade 44, and the fifth blade 45 are provided so as to be able to come into contact with the surface 20a of the conveyor belt 20, but the present invention is not limited thereto, and they may be spaced apart from the surface 20a of the conveyor belt 20 as long as the adhesive L can be leveled. In this case, the distance between the second blade 42 and the surface 20a may be greater than the distance between the first blade 41 and the surface 20a. This makes it possible to prevent the adhesive L leveled by the first blade 41 from coming into contact with the second blade 42 and becoming rough.

[0099] 3.Construction of the transport device 8 and 9, the transport device 2 has a configuration similar to that of the recording device 1 except for at least the recording unit 13, and common parts are designated by common reference numerals. The transport device 2 includes a control unit 10, a memory unit 11, a sensor 12, a transport unit 14, a moving unit 15, a cleaning unit 30, a wiping unit 31, a drying unit 32, and an adhesive supply unit 40.

[0100] The control unit 10 reads firmware from the memory unit 11, and controls the conveying unit 14 to convey the medium M, and the moving unit 15 to move the adhesive supplying unit 40. Furthermore, the control unit 10 controls cleaning of the surface 20a of the conveyor belt 20 along the rotation direction of the conveyor belt 20 by the cleaning unit 30, detection of the state of the surface 20a by the sensor 12, wiping of the cleaning liquid by the wiping unit 31, drying by the drying unit 32, application of adhesive L by the adhesive supplying unit 40 according to the detection result of the sensor 12, and the like. The configuration of each part of the transport device 2, including the adhesive supply unit 40, is similar to that of the above-mentioned recording device 1, and therefore a description thereof will be omitted.

[0101] The recording device 1 according to the above-described embodiment includes a recording unit 13 capable of recording on a medium M, a conveying unit 14 capable of conveying the medium M in a conveying direction T by a conveying belt 20, an adhesive supplying unit 40 that supplies adhesive L to the conveying belt 20, and a moving unit 15 that is capable of moving the adhesive supplying unit 40 in a moving direction S that is a direction intersecting the conveying direction T. The adhesive supplying section 40 has a first blade 41 and a second blade 42 capable of contacting the conveyor belt 20. At least a part of the second blade 42 is located downstream in the conveying direction T or upstream in the moving direction S with respect to the first blade 41. The second blade 42 is capable of forming the first adhesive L1, which flows out from a first end 41a, which is one end of the first blade 41, on the surface 20a of the conveyor belt 20, into a streak-like shape as the second adhesive L2 by moving the first adhesive L1 toward a second end 42a, which is one end of the second blade 42.

[0102] As a result, the adhesive supplying unit 40 can smooth out the third adhesive L3, which is an old streak-like mark formed on the surface 20a before the second adhesive L2 was applied on the rotating conveyor belt 20, and is partially thick, by the first blade 41 so as not to leave it on the surface 20a. In other words, the adhesive supplying unit 40 can apply the adhesive L evenly to the surface 20a. The conveying device 2, which is the recording device 1 without the recording unit 13, has the same configuration.

[0103] Although the embodiments have been described in detail above with reference to the drawings, the specific configuration is not limited to the embodiments, and may be changed, replaced, deleted, etc. without departing from the gist of the present invention. [Explanation of symbols]

[0104] 1...recording device, 2...conveying device, 10...control unit, 11...memory unit, 12...sensor, 13...recording unit, 14...conveying unit, 15...moving unit, 20...conveying belt, 20a...surface, 30...cleaning unit, 31...wiping unit, 32...drying unit, 40...adhesive supply unit, 41...first blade, 41a...first end, 42...second blade, 42a...second end, 43...third blade, 43a...third end, 44...fourth blade, 44a...fourth end, 45...fifth blade, 45a...fifth end, 46...first adhesive supply port, 47...second adhesive supply port, 48...first lifting unit, 49...second lifting unit, L...adhesive, L1...first adhesive, L2...second adhesive, L3...third adhesive, M...medium.

Claims

1. A recording unit capable of recording on a medium; a conveying unit capable of conveying the medium in a conveying direction by a conveying belt; an adhesive supplying section for supplying an adhesive to the conveyor belt; a moving unit that is capable of moving the adhesive supply unit in a moving direction that is a direction intersecting the transport direction, The adhesive supply unit includes: a first blade and a second blade capable of contacting the conveyor belt; At least a portion of the second blade is located downstream in the conveying direction or upstream in the moving direction with respect to the first blade, A recording device, wherein the second blade is capable of forming a streak-like shape on the conveying belt by moving the adhesive that has flowed out from a first end, which is one end of the first blade, toward a second end, which is one end of the second blade.

2. The recording apparatus according to claim 1 , wherein the first blade and the second blade are movable in a relative movement direction in which they move relatively to the transport belt by at least one of the transport unit and the moving unit.

3. The recording apparatus according to claim 2 , wherein the second blade is capable of forming, on the transport belt, the adhesive flowing out from the first end of the first blade in a streak shape in the direction of the relative movement.

4. The recording apparatus according to claim 2 , wherein the second blade is disposed such that at least a portion of the second blade overlaps with the first end of the first blade in the direction of relative movement.

5. The conveyor belt is an endless belt, The recording apparatus according to claim 2 , wherein the first blade is capable of smoothing out the adhesive formed in stripes on the transport belt as the transport belt rotates.

6. The recording apparatus according to claim 2 , wherein the second blade has a predetermined inclination with respect to a direction perpendicular to the direction of the relative movement.

7. The recording apparatus according to claim 2 , wherein the second blade has a convex portion that protrudes towards the first blade in a range not overlapping with the first blade in the direction of relative movement.

8. The adhesive supply unit includes: a third blade capable of contacting the conveyor belt and positioned downstream in the conveying direction or upstream in the moving direction with respect to the first blade; The third blade is The moving unit is movable in the relative movement direction by at least one of the transport unit and the moving unit, The recording apparatus according to claim 2 , wherein the third blade is disposed so as to overlap at least a portion of the other end of the first blade in the direction of relative movement.

9. 9. The recording device according to claim 8, wherein the third blade is capable of forming streaks on the conveying belt by moving the adhesive that has flowed out from the other end of the first blade toward a third end, which is one end of the third blade.

10. The recording apparatus according to claim 1 , wherein the first blade contacts the transport belt more strongly than the second blade.

11. The recording unit is mounted on the moving unit, The recording apparatus according to claim 1 , wherein the adhesive supplying section is detachably mounted on the moving section.

12. The recording apparatus according to claim 11 , wherein the adhesive supplying section is detachably mounted on the moving section by an electromagnet.

13. a conveying unit capable of conveying the medium in a conveying direction by a conveying belt; an adhesive supplying section for supplying an adhesive to the conveyor belt; a moving unit that is capable of moving the adhesive supply unit in a moving direction that is a direction intersecting the transport direction, The adhesive supply unit includes: a first blade and a second blade capable of contacting the conveyor belt; the second blade is located downstream in the conveying direction or upstream in the moving direction with respect to the first blade, A conveying device in which the second blade is capable of forming a streak-like shape on the conveying belt by directing the adhesive that has flowed out from a first end, which is one end of the first blade, toward a second end, which is one end of the second blade.

Images