Feeding device and method of cleaning an apparatus using the same

Abstract

A feeding device and a device cleaning method using the same, the feeding device comprising a rack, a portal frame sliding on the rack, a first driving mechanism arranged on one side of the portal frame, the portal frame being driven to move relative to the rack by the first driving mechanism, the portal frame being provided with a feeding mechanism, one end of the feeding mechanism being provided with a second driving mechanism, the feeding mechanism being driven to move by the second driving mechanism to feed and unload materials. The materials are automatically fed by the feeding mechanism, the rack is moved to a material unloading device after the feeding is completed, the first driving mechanism drives the portal frame to move, and the feeding mechanism moves to place the materials on the material unloading device, solving the problem of inaccurate manual material unloading, improving the production efficiency, reducing the labor cost, and simultaneously spraying air and oil on the material unloading device to replace manual cleaning and oil spraying, ensuring the safety of workers, and automatically cleaning the device to ensure the product quality.

Description

Technical Field

[0001] This invention relates to the field of feeding equipment technology, and in particular to a feeding device and a method for cleaning equipment using the same. Background Technology

[0002] EVA foam sheets are a type of low-foaming polyethylene foam plastic with good cushioning, shock resistance, heat insulation, moisture resistance, and corrosion resistance. During the production process of EVA foam sheets, the raw materials need to be heated. If the heat dissipation of the finished EVA foam sheets is insufficient, some EVA foam sheets may adhere to the hot plate mold during transportation and cutting. If not cleaned in time, the area of ​​adhesion of EVA foam sheets may increase, even affecting the production quality of the product.

[0003] Currently, most cleaning of hot plate molds relies on manual cleaning and surface oiling. Improper operation can lead to safety issues for workers, and manual cleaning is inefficient. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a feeding device for fully automatic feeding and cleaning of equipment surfaces and a cleaning method using the same.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A feeding device includes a frame, a gantry frame slidably mounted on the frame, a first drive mechanism on one side of the gantry frame, the first drive mechanism driving the gantry frame to move relative to the frame, a feeding mechanism on the gantry frame, and a second drive mechanism at one end of the feeding mechanism, the second drive mechanism driving the feeding mechanism to move for feeding and unloading.

[0007] Furthermore, the gantry frame is provided with multiple layers of the feeding mechanism, and each layer of the feeding mechanism is provided with a second drive mechanism at one end, so as to control the single-layer or multi-layer feeding mechanism to feed or unload materials respectively.

[0008] Furthermore, the first drive mechanism includes a first motor, the output end of which is connected to a first rotating shaft via a first chain. The first rotating shaft is located at the top of the frame, and a first gear is provided at the end of the first rotating shaft. A second rotating shaft is located at the bottom of the frame, and a second gear is provided at the end of the second rotating shaft. A second chain is fitted onto the first gear and the second gear. A third gear is fixed in the middle of the second rotating shaft, and a third chain meshes with the third gear. The third chain is fixed to the gantry frame, and the gantry frame is moved along the frame via the third chain.

[0009] Furthermore, the feeding mechanism includes a bracket installed on the gantry frame and third rotating shafts disposed at both ends of the bracket. Conveyor belts are sleeved on the two third rotating shafts. The second driving mechanism includes a second motor installed on the gantry frame. The output end of the second motor is connected to one of the third rotating shafts. The second motor drives the conveyor belt to rotate, thereby moving the material on the conveyor belt.

[0010] Furthermore, a protective plate is fixed on the bracket. The protective plate includes a support portion and a stop portion protruding upward from the side of the support portion. The support portion is supported on the inner surface of the conveyor belt, and the stop portion stops on both sides of the conveyor belt.

[0011] Furthermore, the bottom of the frame is provided with pulleys, and a track is provided below the pulleys. The pulleys are located on the track. A third motor is provided on one side of the frame. The output end of the third motor is connected to a fourth rotating shaft. A fourth gear is provided in the middle of the fourth rotating shaft. The fourth gear meshes with a rack. The third motor drives the gear to move on the rack, thereby driving the pulley to move along the track, thus driving the frame and the gantry frame on it to move together.

[0012] A feeding device includes a frame, on which a first gantry and a second gantry are slidably mounted. A first drive mechanism is provided on one side of the first gantry, driving the first gantry to move relative to the frame. One end of the first gantry is provided with a spray pipe for air and / or oil spraying. The second gantry is provided with a feeding mechanism, one end of which is provided with a second drive mechanism, driving the feeding mechanism to move for feeding and unloading. The first gantry and the second gantry are connected by a connecting mechanism. When the first gantry moves alone, the spray pipe operates to spray air or oil. When the first gantry and the second gantry are connected by the connecting mechanism and move together, the feeding mechanism or the spray pipe operates to unload material or spray air or oil.

[0013] Furthermore, the feeding mechanism includes a bracket installed on the second gantry frame and third rotating shafts disposed at both ends of the bracket. Conveyor belts are sleeved on the two third rotating shafts. The second driving mechanism includes a second motor installed on the second gantry frame. The output end of the second motor is connected to one of the third rotating shafts. The second motor drives the conveyor belt to rotate, thereby moving the material on the conveyor belt. The bracket has grooves on both sides, and square tubes are disposed in the grooves. The square tubes are fixed to the first gantry frame, and the spray pipes are fixed to the square tubes. When the first gantry frame moves, the square tubes and the spray pipes move along the grooves.

[0014] Furthermore, the connecting mechanism includes a cylinder fixed to the second gantry frame. The extended end of the cylinder is hinged to the middle of the locking plate. One end of the locking plate is hinged to the frame, and the other end is provided with a hook. The first gantry frame is provided with a locking post. When the cylinder drives the locking plate to rotate, the hook catches the locking post to fix the first gantry frame and the second gantry frame together.

[0015] A method for cleaning equipment using the above-mentioned feeding device includes:

[0016] After the frame moves into place, the first drive mechanism is activated, driving the first gantry frame to move outward relative to the frame. At the same time, the spray pipe moves accordingly, spraying air or oil during the movement to clean the residue on the unloading equipment.

[0017] When the first gantry moves to the set position, it stops, the first drive mechanism reverses, and the first gantry and the spray pipe move inward relative to the frame, spraying oil or air during the movement;

[0018] When the first gantry moves close to the second gantry, the first drive mechanism stops, the connecting mechanism starts, locks the first gantry and the second gantry, and then the first drive mechanism starts, driving the first gantry and the second gantry to move outward relative to the frame. During the movement, air is sprayed to clean the unloading device again.

[0019] When the first gantry and the second gantry move to the set position and stop, the second drive mechanism starts and drives the feeding mechanism to rotate. At the same time, the first drive mechanism reverses and places the material of the feeding mechanism onto the unloading device.

[0020] The beneficial effects of this invention are:

[0021] The second drive mechanism drives the feeding mechanism to move, so the material is automatically fed through the feeding mechanism. After the feeding is completed, the frame moves to the unloading device (hot plate mold). The first drive mechanism drives the gantry to move, taking the feeding mechanism with it, thereby placing the material on the unloading device. This solves the problems of inaccurate manual feeding and worker safety, improves production efficiency, and reduces labor costs.

[0022] The gantry crane includes a first gantry crane and a second gantry crane that can be separated or connected. The first gantry crane is equipped with a spray pipe for air jetting and / or oil spraying. Before unloading, the first gantry crane is driven to move by a first drive mechanism, and the spray pipe works to spray air or oil to clean the residue on the unloading equipment. When the first gantry crane and the second gantry crane move together, air jetting is performed again to clean the unloading equipment before unloading. This replaces manual cleaning and oil spraying of the unloading equipment, ensuring worker safety and automatically cleaning the equipment to ensure product quality. Attached Figure Description

[0023] Figure 1 This is a perspective view of the feeding device of the present invention;

[0024] Figure 2 This is a front view of the feeding device of the present invention;

[0025] Figure 3 This is a rear view of the feeding device of the present invention;

[0026] Figure 4 This is a top view of the feeding device of the present invention;

[0027] Figure 5 This is a perspective view of the feeding device of the present invention from another angle;

[0028] In the diagram, 1—frame, 11—guide rail, 12—pulley, 13—third motor, 14—fourth chain, 15—fourth shaft, 16—fourth gear, 17—mounting shaft, 18—support wheel, 2—first gantry, 21—ejector pipe, 211—air jet pipe, 212—oil injection pipe, 22—clamping post, 23—roller, 3—second gantry, 4—first drive mechanism, 41—first motor, 42—first chain, 43—first shaft, 44—first gear, 45 —Second rotating shaft, 46—Second gear, 47—Second chain, 48—Third gear, 49—Third chain, 5—Feeding mechanism, 51—Support, 52—Third rotating shaft, 53—Conveyor belt, 54—Groove, 55—Square tube, 56—Guard plate, 561—Support part, 562—Stop part, 6—Second drive mechanism, 61—Second motor, 7—Connecting mechanism, 71—Cylinder, 72—Locking plate, 73—Hook, 8—Rail, 81—Rack, 9—Control cabinet. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0031] like Figure 1 This invention provides a feeding device, including a frame 1, which is a frame type, with a gantry frame slidably mounted on the frame 1. In this embodiment, guide rails 11 are respectively provided at the bottom and top of the frame 1. The guide rails 11 are Ω-shaped, and the gantry frame is mounted on the guide rails 11 and can move along the guide rails 11. A first drive mechanism 4 is provided on one side of the gantry frame, which drives the gantry frame to move relative to the frame 1. The gantry frame is provided with a feeding mechanism 5, and a second drive mechanism 6 is provided at one end of the feeding mechanism 5, which drives the feeding mechanism 5 to move for feeding and unloading.

[0032] The first drive mechanism 4 and the second drive mechanism 6 are controlled by the PLC inside the control cabinet 9. When in use, the material is placed on the feeding mechanism 5. There is no need for manual dragging or pulling. The second drive mechanism 6 drives the feeding mechanism 5 to move, thereby moving the material to the designated position, realizing automatic feeding, solving the problem of inaccurate manual feeding, improving production efficiency and reducing labor costs.

[0033] In a preferred embodiment, the gantry is provided with a multi-layer feeding mechanism 5, and a second driving mechanism 6 is provided at one end of each feeding mechanism 5 to control the single-layer or multi-layer feeding mechanism 5 to feed or unload materials, thereby realizing the conveying of multi-layer materials in one go and improving production efficiency.

[0034] like Figure 1 and Figure 5In this embodiment, the first drive mechanism 4 is a chain-driven mechanism. The first drive mechanism 4 includes a first motor 41 mounted on the frame 1. The output end of the first motor 41 is connected to a first rotating shaft 43 via a first chain 42. The first rotating shaft 43 is mounted on the top of the frame 1. A first gear 44 is provided at the end of the first rotating shaft 43. A second rotating shaft 45 parallel to the first rotating shaft 43 is mounted at the bottom of the frame 1. A second gear 46 is provided at the end of the second rotating shaft 45. A second chain 47 is fitted on the first gear 44 and the second gear 46. A third gear 48 is fixed in the middle of the second rotating shaft 45. A third chain 49 meshes on the third gear 48. The third chain 49 extends along the moving direction of the gantry frame and is fixed to the gantry frame. When the first motor 41 rotates, it drives the first chain 42 to rotate, which in turn drives the first shaft 43 to rotate. The first gear 44, which follows the rotation of the first shaft 43, drives the second chain 47 and the second gear 46 to rotate, which in turn drives the second shaft 45 to rotate. The third gear 48, fixed to the second shaft 45, drives the third chain 49 to rotate, thereby moving the gantry relative to the frame 1. Preferably, a third gear 48 is also provided in the middle of the first shaft 43 at the top of the frame 1, and a third chain 49 meshes with the third gear 48. The two third chains 49 are arranged in parallel, located at the top and bottom of the frame 1 respectively, ensuring the stability of the gantry's movement along the frame 1. In other embodiments, the first drive mechanism 4 can also use other drive methods such as belts or gears.

[0035] The feeding mechanism 5 includes a bracket 51 mounted on the gantry frame and third rotating shafts 52 located at both ends of the bracket 51. Conveyor belts 53 are mounted on the two third rotating shafts 52. The second drive mechanism 6 includes a second motor 61 mounted on the gantry frame. The output end of the second motor 61 is connected to one of the third rotating shafts 52. The second motor 61 drives the third rotating shaft 52 to rotate, thereby driving the conveyor belt 53 to rotate and move the material on the conveyor belt 53. A guard plate 56 is fixed on the bracket 51. The guard plate 56 includes a support portion 561 and a stop portion 562 protruding upwards from the side of the support portion 561. The support portion 561 supports the inner surface of the conveyor belt 53, and the stop portion 562 stops on both sides of the conveyor belt 53 to ensure that the material on the conveyor belt 53 does not deviate during transport.

[0036] Preferably, rollers 23 are provided on both sides of one end of the support 51. When the feeding mechanism 5 moves outward to feed material, the rollers 23 move on the surface of the feeding device, making the feeding mechanism 5 move smoothly. A mounting shaft 17 is provided at the bottom of the support 51. The mounting shaft 17 is mounted on the frame 1. Support wheels 18 are provided at both ends of the mounting shaft 17. The support wheels 18 support the bottom surface of the support 51. When the feeding mechanism moves outward to feed material, the support wheels 18 provide support and also make the movement of the feeding mechanism 5 smoother.

[0037] like Figure 1 and Figure 2 The frame 1 has a pulley 12 at its bottom, and a track 8 below the pulley 12. The pulley 12 is located on the track 8. In this embodiment, the top of the track 8 is triangular, and the pulley 12 is engaged with the track 8. A third motor 13 is provided on one side of the frame 1. The output end of the third motor 13 is connected to a fourth rotating shaft 15 via a fourth chain 14. A fourth gear 16 is provided in the middle of the fourth rotating shaft 15. The fourth gear 16 meshes with a rack 81 below the frame 1. The third motor 13 drives the fourth gear 16 to move on the rack 81, thereby driving the pulley 12 to move along the track 8, thus driving the frame 1 and the gantry frame on it to move together. The third motor 13 drives the entire frame 1 to move along the track 8, thereby transporting the material to the unloading position.

[0038] like Figures 1 to 5 The present invention also provides a feeding device, wherein the gantry includes a first gantry 2 and a second gantry 3 that can be separated or connected. Both the first gantry 2 and the second gantry 3 are slidably mounted on the guide rail 11 of the frame 1. A first drive mechanism 4 is provided on one side of the first gantry 2. The first drive mechanism 4 is a chain-driven mechanism, as described above, and will not be repeated here. The first drive mechanism 4 drives the first gantry 2 to move relative to the frame 1. One end of the first gantry 2 is provided with a spray pipe 21 for air jetting and / or oil jetting. In this embodiment, the spray pipe 21 includes an air jet pipe 211 and an oil jet pipe 212, used for air jetting and oil jetting respectively. Preferably, the nozzle of the air jet pipe 211 is downward and the nozzle of the oil jet pipe 212 is upward, thus blowing away residue on the table. In other embodiments, a single spray pipe 21 can be provided, with its air jetting or oil jetting controlled by a PLC. In another embodiment, the nozzle direction of the spray pipe 21 is adjustable.

[0039] The second gantry 3 is equipped with a feeding mechanism 5, and one end of the feeding mechanism 5 is equipped with a second drive mechanism 6. The second drive mechanism 6 drives the feeding mechanism 5 to move for feeding and unloading. The first gantry 2 and the second gantry 3 are connected by a connecting mechanism 7. When the first gantry 2 moves alone, the spray pipe 21 works to spray air or oil. When the first gantry 2 and the second gantry 3 are connected by the connecting mechanism 7 and move together, the feeding mechanism 5 or the spray pipe 21 works to unload, spray air, or spray oil.

[0040] The feeding mechanism 5 includes a bracket 51 installed on the second gantry 3 and third rotating shafts 52 set at both ends of the bracket 51. Conveyor belts 53 are sleeved on the two third rotating shafts 52. The second driving mechanism 6 includes a second motor 61 installed on the second gantry 3. The output end of the second motor 61 is connected to one of the third rotating shafts 52. The second motor 61 drives the conveyor belt 53 to rotate, thereby moving the material on the conveyor belt 53.

[0041] The support frame 51 has sliding grooves 54 on both sides, and square tubes 55 are installed in the sliding grooves 54. The square tubes 55 are fixed to the first gantry frame 2, and the spray pipe 21 is fixed inside the square tubes 55. When the first gantry frame 2 moves, the square tubes 55 and the spray pipe 21 move along the sliding grooves 54. In this embodiment, the jet pipe 211 and the oil injection pipe 212 are located in the square tubes 55 on both sides of the support frame 51 and extend to the end of the first gantry frame 2.

[0042] The connecting mechanism 7 is respectively set at the top and bottom of the frame 1. The connecting mechanism 7 includes a cylinder 71 fixed to the second gantry 3. The extended end of the cylinder 71 is hinged to the middle of the locking plate 72. One end of the locking plate 72 is hinged to the frame 1, and the middle part is also hinged to the second gantry 3. The other end is provided with a hook 73. The first gantry 2 is provided with a locking post 22. When the cylinder 71 drives the locking plate 72 to rotate, the hook 73 hooks the locking post 22 to fix the first gantry 2 and the second gantry 3 together.

[0043] In this embodiment, the first gantry 2 is equipped with a spray pipe 21 for spraying air or / and oil. Before unloading, the first gantry 2 is driven to move by the first drive mechanism 4, and the spray pipe 21 sprays air or oil to clean the residue on the unloading equipment. The unloading is carried out when the first gantry 2 and the second gantry 3 move together, which replaces the manual cleaning and oiling of the unloading equipment (hot plate mold), ensures the safety of workers, and automatically cleans the equipment to ensure product quality.

[0044] The present invention also provides a method for cleaning equipment using the above-mentioned feeding device, comprising the following steps:

[0045] The frame 1 is driven forward by the third motor 13. After moving to the designated position (to the unloading device), the first drive mechanism 4 is activated, causing the first gantry 2 to move outward relative to the frame 1. At the same time, the spray pipe 21 moves accordingly, spraying air or oil during the movement to clean the residue on the unloading device. In this embodiment, the spray pipe 211 sprays air during the outward movement of the first gantry 2.

[0046] When the first gantry 2 moves to the set position, it stops, the first drive mechanism 4 reverses, and the first gantry 2 and the spray pipe 21 move inward relative to the frame 1, spraying oil or air during the movement. In this embodiment, during the inward movement of the first gantry 2, the oil spray pipe 212 sprays oil, and the oil spraying time is about 5 to 10 seconds before stopping. The oil spraying time is set according to the size of the surface of the feeding equipment.

[0047] When the first gantry 2 moves close to the second gantry 3, the first drive mechanism 4 stops, the connecting mechanism 7 starts, the cylinder 71 retracts, and the hook 73 rotates inward to hook the locking post 22, thereby locking the first gantry 2 and the second gantry 3. Then the first drive mechanism 4 starts, driving the first gantry 2 and the second gantry 3 to move outward relative to the frame 1. At the same time, air is sprayed to clean the discharge equipment again, achieving the best cleaning effect.

[0048] When the first gantry 2 and the second gantry 3 move to the set position and stop, the air jet pipe 211 stops spraying. Then the second drive mechanism 6 starts, driving the conveyor belt 53 of the feeding mechanism 5 to rotate. At the same time, the first drive mechanism 4 reverses, and the first gantry 2 and the second gantry 3 move inward, placing the material from the feeding mechanism 5 onto the unloading device. When the first gantry 2 and the second gantry 3 return to their original positions, the first drive mechanism 4 stops. At this time, the third motor 13 reverses, driving the entire frame 1 away from the unloading device, stopping when it returns to the initial position. At this time, the foaming hydraulic press can start to lift the mold and proceed to the next process. If the foaming hydraulic press is not in the mold-opening state or the air pressure is 0 or low, the feeding device will not move forward, but the conveyor belt 53 can rotate.

[0049] The above steps are preceded by a material loading step and a material feeding step.

[0050] Feeding steps: Place the material on the conveyor belt 53. At this time, the second motor 61 starts, the conveyor belt 53 rotates, and the material moves. No manual dragging or pulling is required. The conveyor belt 53 is controlled by the PLC to start after a delay. When the material leaves the reflector switch, the timer starts. After the delay, the second motor 61 stops, the conveyor belt 53 stops rotating, and the material stops in the designated position, thus realizing the feeding.

[0051] Feeding steps: After the material is discharged, the frame 1 is driven by the third motor 13 to move the fourth gear 16 along the rack 81. After the frame 1 moves forward to the designated position, when the limit switch is in contact, the third motor 13 is disconnected and stops moving forward, and the material is sent to the discharge equipment.

[0052] This invention enables automated feeding, delivery, and unloading of EVA foam sheets, solving the problem of inaccurate manual feeding, improving production efficiency, and reducing labor costs. Simultaneously, air is sprayed through the air jet pipe 211 to clean the unloading equipment (hot plate mold), and oil is sprayed through the oil spray pipe 212 for easy demolding. This replaces manual cleaning and oiling of the hot plate mold, ensuring worker safety and automatically cleaning the equipment to guarantee product quality.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A feeding device, characterized in that include: The machine frame includes a first gantry and a second gantry that slide on it. A first drive mechanism is located on one side of the first gantry, driving it to move relative to the frame. One end of the first gantry has a spray pipe for air and / or oil spraying. The second gantry has a feeding mechanism, with a second drive mechanism at one end, moving it for feeding and unloading. The first and second gantry are connected by a connecting mechanism. When the first gantry moves independently, the spray pipe sprays air or oil. When the first and second gantry are connected and move together via the connecting mechanism, the spray pipe sprays air or oil to clean residue from the unloading equipment, and then the feeding mechanism unloads the material. The equipment cleaning method for the feeding device includes: After the frame moves into place, the first drive mechanism is activated, driving the first gantry frame to move outward relative to the frame. At the same time, the spray pipe moves accordingly, spraying air or oil during the movement to clean the residue on the unloading equipment. When the first gantry moves to the set position, it stops, the first drive mechanism reverses, and the first gantry and the spray pipe move inward relative to the frame, spraying oil or air during the movement; When the first gantry moves close to the second gantry, the first drive mechanism stops, the connecting mechanism starts, locks the first gantry and the second gantry, and then the first drive mechanism starts, driving the first gantry and the second gantry to move outward relative to the frame. During the movement, air is sprayed to clean the unloading device again. When the first gantry and the second gantry move to the set position and stop, the second drive mechanism starts and drives the feeding mechanism to rotate. At the same time, the first drive mechanism reverses and places the material of the feeding mechanism onto the unloading device. The feeding mechanism includes a bracket installed on the second gantry frame; The second gantry is equipped with multiple layers of the aforementioned feeding mechanism.

2. The feeder of claim 1, wherein: Each layer of the feeding mechanism is provided with a second driving mechanism at one end to control the feeding mechanism of a single layer or multiple layers to feed or unload materials.

3. The feeder of claim 1, wherein: The first drive mechanism includes a first motor, the output end of the first motor is connected to a first rotating shaft via a first chain, the first rotating shaft is disposed on the top of the frame, the end of the first rotating shaft is provided with a first gear, the bottom of the frame is provided with a second rotating shaft, the end of the second rotating shaft is provided with a second gear, a second chain is sleeved on the first gear and the second gear, a third gear is fixed in the middle of the second rotating shaft, and a third chain is meshed on the third gear.

4. The feeder of claim 1, wherein: The upper feeding mechanism further comprises third rotating shafts arranged at both ends of the support, and a conveying belt is sleeved on the third rotating shafts, the second driving mechanism comprises a second motor installed on the second gantry, and an output end of the second motor is connected to one of the third rotating shafts, the conveying belt is driven to rotate by the second motor, so as to drive the material on the conveying belt to move, both sides of the support are provided with sliding grooves, square tubes are arranged in the sliding grooves, the square tubes are fixed to the first gantry, and the spray pipe is fixed to the square tube, when the first gantry moves, the square tube and the spray pipe move along the sliding grooves.

5. The feeder of claim 4, wherein: The support is fixed with a guard plate, the guard plate comprises a supporting portion and a stop portion protruding upward from a side of the supporting portion, the supporting portion is supported on the inner surface of the conveying belt, and the stop portion is stopped on both sides of the conveying belt.

6. The feeder of claim 1, wherein: The bottom of the rack is provided with a pulley, the lower side of the pulley is provided with a track, the pulley is located on the track, one side of the rack is provided with a third motor, an output end of the third motor is connected to a fourth rotating shaft, a fourth gear is arranged in the middle of the fourth rotating shaft, the fourth gear is engaged with a rack, the rack is driven to move on the rack by the third motor, so as to drive the pulley to move along the track, thereby driving the rack and the first gantry and the second gantry on the rack to move together.

7. The feeder of claim 1, wherein: The connecting mechanism comprises a pneumatic cylinder fixed to the second gantry, an extending end of the pneumatic cylinder is hinged to the middle of a locking plate, one end of the locking plate is hinged to the rack, the other end is provided with a clamping hook, a clamping column is arranged on the first gantry, when the pneumatic cylinder drives the locking plate to rotate, the clamping hook hooks the clamping column, so as to fix the first gantry and the second gantry together.

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