Christmas tree down spraying system

Abstract

A Christmas tree down spraying system comprises a conveying rail and a plurality of conveying bottom plates moving along the conveying rail, sleeves are rotationally arranged on the conveying bottom plates, longitudinal slots are formed in the side walls of the sleeves, the outer walls of the sleeves are sleeved with elastic clamps, the elastic clamps are located between the top ends and the bottom ends of the longitudinal slots, and each elastic clamp comprises a clamping ring and a handle. A groove is formed in the outer side of the clamping ring, a protruding part matched with the groove in shape is arranged on the handle, and the handle can rotate relative to the clamping ring so that the protruding part can make contact with the non-groove part of the clamping ring or the groove, and therefore the elastic clamp can lock or unlock the sleeve and the Christmas tree conveniently. Compared with the prior art, the locking and unlocking actions of the elastic clamp are simple, the probe does not need to stoop for alignment, and only needs to stretch out a hand for pressing, so that eyes are prevented from being stabbed by branches of the Christmas tree in the process of going back and forth the probe or stoop, and the safety of the Christmas tree down spraying system is improved.

Description

Technical Field

[0001] This utility model relates to the field of Christmas tree processing, and in particular to a Christmas tree velvet spraying system. Background Technology

[0002] Christmas trees are the most commonly used artificial tree-shaped decorations in Christmas celebrations. During Christmas tree production, a fixing device is usually needed to install the tree with branches attached onto the Christmas tree spraying equipment for spraying and decorating, simulating the effect of branches covered in snowflakes to enhance the festive atmosphere. The trunk of a Christmas tree is usually a hollow sleeve. Existing Christmas tree fixing devices typically consist of a cylindrical hollow sleeve that matches the diameter of the trunk and screws mounted on the sleeve. The trunk of the Christmas tree is inserted into the sleeve, and the screws are tightened to lock the sleeve in place, thus fixing the tree on the production line. After spraying and decorating, it is removed. However, in actual production, this invention has found that when transferring the Christmas tree to the fixing device on the Christmas tree spraying system, workers are very likely to be poked in the eyes by Christmas tree branches, posing a certain safety hazard to production. Utility Model Content

[0003] Therefore, the purpose of this utility model is to overcome the defects or deficiencies of the prior art and provide a Christmas tree spraying system.

[0004] This utility model is achieved through the following technical solution: a Christmas tree spraying system, comprising: a spraying chamber, a baking chamber, a conveying track, and several conveying base plates that move along the conveying track; the conveying track includes an upper part ground track, a spraying chamber ground track, a baking chamber ground track, and a lower part ground track arranged sequentially; the spraying chamber ground track is located inside the spraying chamber, the baking chamber ground track is located inside the baking chamber, the conveying inlet of the upper part ground track forms an upper part area, and the conveying outlet of the lower part ground track forms a lower part area;

[0005] The conveying base plate is provided with a fixing device for fixing the Christmas tree, including a fixing seat and a sleeve. The fixing seat is located in the middle of the conveying base plate, and the sleeve is rotatably located above the fixing seat. The sleeve includes a sleeve body and a tensioning clamp. A longitudinal slit is provided on one side of the outer wall of the sleeve body, which extends vertically downward from the top of the sleeve body.

[0006] The clamp includes a clamping ring and a handle. The clamping ring is sleeved around the outer periphery of the sleeve body and located above the lowest end of the longitudinal slit. The clamping ring is a circular ring structure with an opening. Each end of the opening has a fixing lug, and the outer surface of the fixing lug away from the opening has a groove. One end of the handle has two positioning wings, the inner surfaces of which contact the outer surfaces of the two fixing lugs respectively. The inner surface of the positioning wings has a protrusion that matches the shape of the groove, and the shapes of the protrusion and the groove are non-centrally symmetrical. The handle is rotatably connected to the clamping ring, so that the protrusion contacts the non-grooved part or the groove of the fixing lug, so that the clamp can lock or unlock the sleeve to the Christmas tree.

[0007] Compared to existing technologies, the locking and unlocking of the clips is simple, requiring no probe or bending over to align; simply pressing with your hand avoids being poked in the eyes by Christmas tree branches while repeatedly probing or bending over, thus improving the safety of the Christmas tree fluff spraying system.

[0008] Furthermore, the two fixing ears are provided with openings with their centers facing each other; the two positioning wings are provided with through holes coaxial with the openings; the tightening clamp also includes a bolt and a nut, the head of the bolt is located outside one positioning wing, the bolt shank passes through the through hole and the opening, and is tightened and fixed with the nut located outside the other positioning wing, so that the handle is rotatably connected to the fixing ear position of the clamping ring.

[0009] Furthermore, a notch extending downwards from the top is provided on the outer wall of the sleeve body on the side away from the longitudinal slit, and the width of the notch is greater than the outer diameter of the Christmas tree trunk; the clamping ring is located between the lowest end of the longitudinal slit and the lowest end of the notch. The notch reduces the difficulty of aligning the Christmas tree trunk with the sleeve body.

[0010] Furthermore, a height limiting structure is fixed to the outer wall of the sleeve body, with its lowest end's upper surface flush with the lowest end of the notch, and located above the clamping ring. The height limiting structure is located on the side of the sleeve body with the notch, and the two fixing ears are located on the side of the sleeve body with the longitudinal slit. The height limiting structure guides the Christmas tree trunk to the correct height, locates the notch, and enters the sleeve body. Simultaneously, with the height limiting structure and the clamping handle located on opposite sides of the sleeve body, the height limiting structure does not obstruct the worker's access to the clamping handle.

[0011] Furthermore, side plates are provided on both sides of the height limiting structure. The highest end of each side plate is connected to the edge of the notch top, and the lowest end of each side plate is connected to the height limiting structure. The side plates prevent the Christmas tree trunk from falling out of the height limiting structure.

[0012] Furthermore, the side plate is a triangular side plate, with one side connected to the outer wall of the sleeve and the other side connected to the edge of the height limiting structure; the distance between the two side plates gradually increases from the outer wall of the sleeve towards the direction away from the sleeve. The side plate can better guide the trunk of the Christmas tree to the notch.

[0013] Furthermore, the fixing device also includes an inner sleeve post located inside the sleeve body, fixed to the bottom of the sleeve body, with the axis of the inner sleeve post coinciding with the axis of the sleeve body, and its outer diameter smaller than the inner diameter of the Christmas tree; both the outer wall of the inner sleeve post and the inner wall of the sleeve body are lined with fleece fabric. This structure increases friction, better securing the Christmas tree, while also reducing noise when the Christmas tree rotates.

[0014] Furthermore, the inner column of the sleeve is composed of several layers of cylinders with different diameters, the diameter of which increases sequentially from top to bottom; or, the inner column of the sleeve is a frustum or cone, and its diameter increases sequentially from top to bottom. This structure allows the fixing device to adapt to Christmas trees of different sizes.

[0015] Furthermore, the spray booth track is equipped with at least one spraying station, and each spraying station is equipped with a blocking cylinder and a check valve at the front and rear of the conveyor to position the conveyor base plate; and each spraying station is equipped with a corresponding spraying device to spray the Christmas tree on the conveyor base plate.

[0016] In one embodiment, the drying oven track includes several linear conveying components and several turning components, with each turning component connected to a linear conveying component at both ends. Each turning component includes a frame and a drive motor. Several sets of rollers are mounted on the frame, arranged at arc-shaped intervals to form an arc-shaped track. Each set of rollers includes a roller, a bevel gear, and a rotating shaft coaxially fixed to the roller and bevel gear. The diameter of the bevel gear is smaller than that of the roller, and the bevel gear meshes with adjacent bevel gears. The output shaft of the drive motor is fixedly connected to a reversing bevel gear, which meshes with one of the bevel gears.

[0017] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a Christmas tree spraying system provided in this embodiment;

[0019] Figure 2 for Figure 1 The diagram shows the structure of the conveyor track.

[0020] Figure 3This is a schematic diagram of the structure when the conveyor base plate is located on the spray booth floor rail in one embodiment, and the clamps in the diagram are in the unlocked state;

[0021] Figure 4 This is a schematic diagram of the structure when the conveyor base plate is located on the spray booth floor rail in one embodiment, and the clamping clamp is in a locked state in the figure;

[0022] Figure 5 This is a three-dimensional structural schematic diagram of the fixing device for conveying the base plate in one embodiment;

[0023] Figure 6 This is a three-dimensional structural diagram of the fixing device for conveying the base plate in another embodiment;

[0024] Figure 7 This is a schematic diagram of the clamp and handle.

[0025] Figure 8 This is a schematic diagram of the planar structure when the clamp is in the unlocked state.

[0026] Figure 9 This is a schematic diagram of the planar structure when the clamp is in the locked state.

[0027] Figure 10 for Figure 2 The diagram shows a top view of the spray booth's floor track.

[0028] Figure 11 for Figure 2 Top view of the turning component shown;

[0029] Figure 12 for Figure 11 A schematic diagram of the turning assembly. Detailed Implementation

[0030] This invention analyzes the reasons why existing Christmas trees are prone to eye injuries during movement and installation on the production line. Firstly, when workers tighten the Christmas tree trunk inside the sleeve, they need to use a screwdriver to tighten the screws, securing the sleeve to the trunk. This tightening process is relatively complex, requiring workers to bend over or peer to observe and align the screws. During this process, workers may disturb branches and leaves, and branches that spring back can easily poke eyes. Therefore, it is necessary to improve the tightening device on the sleeve to reduce the need for visual observation during Christmas tree tightening, allowing workers to tighten the tree without bending over or peering.

[0031] Secondly, since both the Christmas tree trunk and the Christmas tree fixing device consist of two relatively narrow sleeves, during the movement and installation process, it is necessary to visually inspect whether the trunk and sleeves are aligned to install the Christmas tree onto the fixing device. However, the loose and swollen branches and leaves of the Christmas tree, especially large Christmas trees, obstruct the worker's view. Therefore, the worker needs to bend over and peek repeatedly to find their field of vision. During this back-and-forth peeking, they are easily poked by branches and leaves, and in severe cases, branches and leaves may poke their eyes. This invention, after analysis, proposes that to prevent this, the sleeves should be improved to make the Christmas tree trunk easier to align, reducing the need for workers to bend over and peek repeatedly during installation.

[0032] Therefore, this utility model is conceived by adding a notch and a positioning plate to the sleeve as a positioning guide, allowing workers to find the installation height by touching the positioning plate with the bottom of the tree trunk without leaning forward, and then smoothly insert the Christmas tree trunk into the sleeve with the help of the notch. At the same time, a longer handle elastic clamp is used to secure the sleeve, enabling locking and unlocking without the need for leaning forward to observe and align.

[0033] The following is in conjunction with the appendix Figure 1-12 The present invention will be described in detail.

[0034] Please see Figure 1-2 This application provides a down spraying system for Christmas trees, including a spray booth 10, a baking chamber 20, and a conveyor track 30. The conveyor track 30 is provided with several conveyor base plates 40, each equipped with a fixing device for transporting the Christmas tree. Specifically, the conveyor track 30 includes an upper component track 32, a spray booth track 34, a baking chamber track 36, and a lower component track 38 arranged sequentially. The conveying inlet of the upper component track 32 forms an upper component area. The spray booth track 34 is located within the spray booth 10, and the baking chamber track 36 is located within the baking chamber 20. The lowering track 38 includes a first track 382 and a second track 384. The conveying outlet of the first track 382 is connected to the upper track 32 to convey the Christmas tree into the spray booth 10 for secondary spraying. The second track 384 is used for lowering, and its conveying outlet forms the lowering area. A reversing component 386 is provided at the connection between the first track 382 and the second track 384. The reversing component 386 is used to control the running trajectory of the conveyor base plate 40. When the Christmas tree spraying effect does not meet the requirements, the Christmas tree enters the spray booth 10 along the first track 382 for secondary spraying. When the Christmas tree spraying effect meets the requirements, the Christmas tree enters the lowering area along the second track 384 for lowering.

[0035] like Figure 3-6As shown, the fixing device of the conveyor base plate 40 includes a fixing seat 41, a sleeve 42, and a clamping clip 43. The fixing seat 41 is located in the middle of the upper surface of the conveyor base plate 40. The sleeve 42 is rotatably positioned above the fixing seat 41. The inner diameter of the sleeve 42 is larger than the outer diameter of the Christmas tree trunk, used to insert the Christmas tree, and its bottom supports the lowest end of the Christmas tree. The clamping clip 43 is sleeved on the sleeve 42. When it is in the locked state, the sleeve 42 can be slightly deformed to clamp the Christmas tree trunk inward. When it is in the unlocked state, the worker can remove the Christmas tree from the sleeve or install the Christmas tree into the sleeve. The conveyor base plate 40 is also provided with a rotating structure for controlling the rotation of the Christmas tree. The rotating structure is a conventional rotating structure. When the Christmas tree runs along the spray booth track 34 and / or the baking booth track 36, the rotating structure controls the sleeve to rotate, thereby causing the Christmas tree to rotate and achieving uniform spraying of down, glue, and / or drying of the Christmas tree.

[0036] Specifically, the sleeve 42 includes a sleeve body 421 and a height limiting structure 422. A notch 421a extending downwards from the top is formed on one side of the sidewall of the sleeve body 421, the width of which is greater than the outer diameter of the Christmas tree trunk. The height limiting structure 422 is fixed to the outer wall of the sleeve body 421, located on the side of the outer wall with the notch 421a, and the upper surface of the lowest end of the height limiting structure 422 is flush with the lowest end of the notch 421a, assisting the Christmas tree trunk to enter the sleeve body 421 through the notch 421a. A longitudinal slit 421b is provided on the sidewall of the sleeve body 421 away from the notch 421a, extending vertically downwards from the top of the sleeve body 421, with its lowest end lower than the notch 421a or the lowest end of the height limiting structure 422.

[0037] like Figure 5 As shown, in one embodiment, the height limiting structure 422 is a flat metal plate welded to the side of the outer wall of the sleeve body 421 where a notch 421a is provided. In one embodiment, the height limiting structure 422 may be an arc-shaped metal plate extending from the edge of the notch 421a in a direction away from the sleeve body 421. Preferably, the size of the height limiting structure 422 gradually increases from the notch 421a in a direction away from the sleeve 42, so as to facilitate workers to quickly locate the position of the height limiting structure 422.

[0038] like Figure 6As shown, in another embodiment, two side plates 423 are also provided on both sides of the height limiting structure 422 to limit and guide the Christmas tree trunk, preventing the Christmas tree from slipping off the sides of the height limiting structure 422. The highest end of the side plate 423 is connected to the edge of the top of the notch 421a, and the lowest end of the side plate 423 is connected to the height limiting structure 422. The distance between the two side plates 423 is always greater than or equal to the maximum width of the notch 421a at the horizontal plane. Preferably, the distance between the two side plates 423 gradually increases from the axial direction away from the sleeve 42. In this embodiment, the side plate 423 is a triangular side plate 423. One side of the triangular side plate 423 is welded to the outer wall of the sleeve body 421, and the other side is welded to one edge of the height limiting structure 422.

[0039] When installing the Christmas tree onto the conveyor base plate, the worker holds the upper part of the tree trunk and probes it towards the sleeve. Once the trunk touches the height limiting structure 422, the worker can slightly lift the tree along the height limiting structure 422, placing the bottom of the trunk on it. Probing further towards the sleeve body 421, the worker reaches the notch 421a. The bottom of the trunk enters the notch 421a, allowing the trunk to fall smoothly into the sleeve body 421 without needing to lift it again to align with the opening. If the probe direction deviates slightly and the trunk touches the side plates 423 on either side of the height limiting structure 422, the worker simply slides the bottom of the trunk along the flange to guide it to the notch 421a, ultimately allowing the trunk to fall smoothly into the sleeve body 421 and descend to the bottom of the sleeve.

[0040] like Figure 5-9 As shown, the tensioning clip 43 is sleeved on the outer wall of the sleeve body 421, located between the lowest end of the longitudinal slit 421b of the sleeve body 421 and the lowest end of the height limiting structure 422. The tensioning clip 43 includes a clamping ring 431, a handle 432, a bolt 433, and a nut 434 that matches the bolt 433. Figure 2-6As shown, the clamping ring 431 is fitted around the sleeve body 421, located between the lowest end of the longitudinal slit 421b and the lowest end of the height limiting structure 422. The clamping ring 431 is a circular ring structure with an opening. Each end of the opening has a fixing lug 4311 protruding from the circular ring structure. The outer surfaces of the two fixing lugs 4311 away from the opening have grooves 4311a, the inner concave surface of which is a smooth arc surface. One end of the handle 432 has two positioning wings 4321, the inner surfaces of which contact the outer surfaces of the two fixing lugs 4311. The inner surfaces of the two positioning wings 4321 have protrusions 4321a that protrude towards the fixing lugs 4311, and the protrusions 4321a match the shape of the grooves 4311a. In this embodiment, the shapes of the protrusions 4321a and the grooves 4311a are non-centrally symmetrical.

[0041] Furthermore, each of the two fixing ears 4311 has an opening, with the centers of the two openings facing each other and having the same diameter; each of the two positioning side wings 4321 has a through hole coaxial with the opening, the diameter of the through hole being greater than or equal to the diameter of the opening. Preferably, the opening is located in the groove 4311a, and the through hole is located in the protrusion 4321a. The head of the bolt 433 and the nut 434 are located on both sides of the handle, the threaded part of the bolt 433 passes through the two through holes and the two openings, and the nut 434 is tightened and fixed to the tail end of the threaded part, so that the handle 432 is rotatably connected to the fixing ears 4311 of the clamping ring 431 through the bolt 433. The diameter of the head of the bolt 433 is greater than the diameter of the through hole, and the diameter of the threaded part of the bolt 433 is less than or equal to the diameter of the opening.

[0042] like Figure 3 and Figure 8 As shown, when the handle 432 is rotated to a position parallel to the plane of the clamping ring 431, the protrusion 4321a of the positioning wing 4321 of the handle 432 is completely located within the groove 4311a of the fixing ear 4311. At this time, the two positioning wings 4321 exert no pressure on the two fixing ears 4311, the width of the notch 421a of the clamping ring 431 is at its maximum value, and the tensioning clamp 43 is in the unlocked state. Figure 4 and Figure 9As shown, when the handle 432 is rotated to be perpendicular to the plane of the clamping ring 431, the protrusion 4321a cannot be inserted into the groove 4311a, and the protrusion 4321a only contacts the non-grooved part of the outer side of the fixing ear 4311. At this time, the protrusion 4321a of the positioning wing 4321 presses against the two fixing ears 4311 of the clamping ring 431, making the width of the notch 421a of the clamping ring 431 minimum, and the tensioning clip 43 is in a locked state. The tensioning method of the tensioning clip 43 is simple and does not require special observation or alignment. Just reach out and touch the handle 432 in the general direction and turn it down or up. This further avoids the need to look back and forth or bend over, reduces the risk of workers' eyes being poked by branches, and improves safety.

[0043] Preferably, to prevent the elastic clip 43 from sliding down in the unlocked state, this embodiment also provides an elastic clip limiting part (not shown in the figure) below the elastic clip 43, which is located on the outside of the sleeve body 421 and contacts the lowest end of the elastic clip 43. In one embodiment, the elastic clip limiting part is specifically a rubber ring that is tightly fitted onto the outer wall of the sleeve body 421. In another embodiment, the elastic clip limiting part is a plurality of protrusions 4321a spaced apart around the outer wall of the sleeve body 421, specifically a plurality of protrusions.

[0044] Preferably, the fixing device further includes an inner sleeve post, which is disposed inside the sleeve body 421 and welded to the bottom of the sleeve body 421. The axis of the inner sleeve post coincides with the axis of the sleeve body 421, and its outer diameter is slightly smaller than the inner diameter of the Christmas tree trunk. The Christmas tree trunk is installed between the sleeve and the inner sleeve post, and the inner sleeve post and the sleeve together clamp the Christmas tree trunk. In one embodiment, the inner sleeve post is several layers of cylinders with different diameters, the axis of each layer of cylinders coincides with the axis of the sleeve body 421, and the diameter of the several layers of cylinders increases sequentially from top to bottom. In another embodiment, the inner sleeve post is a frustum or a cone, and the diameter of the inner sleeve post increases sequentially from top to bottom, which helps the fixing device adapt to Christmas trees of different trunk sizes. When it is necessary to change the size of the Christmas tree, the tension clamp 43 can be replaced or the tension limit of the tension clamp 43 can be adjusted, without making major modifications to the fixing device of the conveying base plate to adapt to Christmas trees of different sizes.

[0045] Furthermore, the two fixing ears 4311 of the elastic clamp 43 are located on the side of the sleeve body 421 where the longitudinal slit 421b is provided, so that the height limiting structure 422 located on the side of the notch 421a will not block the fixing ears 4311 of the elastic clamp 43 and the handle 432 connected thereto. Therefore, the worker can access the handle 432 from above without being blocked by the height limiting structure 422.

[0046] Furthermore, the outer wall of the inner sleeve post and the inner wall of the sleeve body 421 are both covered with fleece fabric, which increases the friction between the inner sleeve post, the sleeve body 421 and the Christmas tree trunk, preventing the relative rotation of the Christmas tree relative to the Christmas tree sleeve, and also reducing the noise during the rotation of the Christmas tree.

[0047] Please see Figure 1-10 Furthermore, the spray booth 10 includes a spray booth body 11, which has a spray booth entrance 12 and a spray booth exit 13 for the Christmas tree to enter and exit the spray booth 11. The spray booth body 11 is equipped with at least one spraying device 14. The conveying inlet end of the spray booth floor rail 34 extends outward from the spray booth entrance 12 and is connected to the upper part floor rail 32. The conveying outlet end extends outward from the spray booth exit 13 and is connected to the baking room floor rail 36. The conveying base plate 40 is transferred to the baking room 20 along the spray booth floor rail 34.

[0048] In some embodiments, the spray booth floor track 34 is conveyed via a double-speed chain conveyor. The double-speed chain conveyor includes a base 341, a linear track, and a motor. The linear track is mounted on the base 341, and two parallel double-speed chains 342 are arranged within the linear track. The motor simultaneously drives the two double-speed chains 342 to rotate, ensuring that the conveying speed on both sides of the conveying base plate 40 is consistent when the linear conveying assembly is in operation. This results in a smooth transport process and reduces the swaying of the conveying base plate 40, especially the Christmas tree above it.

[0049] In some embodiments, at least one velour spraying station A is provided on the spray booth track 34, and each velour spraying station A is provided with a corresponding velour spraying device 14. A blocking cylinder 343 and a check valve 344 are respectively provided in front of and behind the conveyor of the velour spraying station A. When the conveyor base plate 40 begins to enter the velour spraying station, the blocking cylinder 343 rises to position the conveyor base plate 40. After the blocking cylinder 343 contacts the conveyor base plate 40, the check valve 344 rises to position the conveyor base plate 40. Preferably, the velour spraying station A is also provided with limiting structures 345 on both sides, which are connected to both sides of the spray booth track 34 and form a positioning area for the conveyor base plate 40 with the blocking cylinder 343 and the check valve 344. The conveyor base plate 40 is positioned from four directions (front, back, left, and right) to prevent the conveyor base plate 40 from colliding with the spray booth track 34 during rotation, which would cause the velour on the Christmas tree to fall off.

[0050] Further, the baking oven 20 includes a baking oven body 21, which has a baking oven inlet 22 and a baking oven outlet 23. The baking oven floor track 36 is bow-shaped, with its conveying inlet end extending from the baking oven inlet 22 outwards and connecting to the spray booth floor track 34, and its conveying outlet end extending from the baking oven outlet 23 outwards and connecting to the unloading floor track 38. The baking oven floor track 36 runs from the baking oven inlet 22 to the baking oven outlet 23, and the conveying base plate 40 is transferred to the unloading area along the conveying track 30 and the baking oven floor track 36. Preferably, the baking oven body 21 is rectangular, with the baking oven inlet 22 and the baking oven outlet 23 located on the same side and at opposite ends of the width of the baking oven body 20. The shapes of the baking oven inlet 22 and the baking oven outlet 23 are matched with the shapes of the track and the Christmas tree to reduce heat loss inside the baking oven. The control unit is an existing controller, which will not be described in detail in this embodiment.

[0051] Specifically, such as Figure 2 As shown, the drying oven floor track 36 includes a plurality of straight conveyor components 361 and a plurality of turning components 362. Each turning component 362 is connected to a straight conveyor component 361 at both ends, and the plurality of straight conveyor components 361 are parallel to each other to form an arc-shaped drying oven floor track 36. In some embodiments, the straight conveyor component 361 includes a double-speed chain conveyor line.

[0052] Please see Figure 11-12 Furthermore, the turning assembly 362 includes a frame 363 and a drive motor 365. The frame 363 is equipped with several sets of rollers 364, which are arranged at arc-shaped intervals to form an arc-shaped track. The upper surface of each roller set 364 is flush with the upper surface of the straight track. The drive motor 365 is connected to and controls the rotation of the roller sets 364, transporting the conveyor base plate 40 in a predetermined direction, i.e., from the straight track in front of the arc-shaped track to the straight track behind the arc-shaped track. The drive motor 365 is electrically connected to a control unit. The control unit is an existing controller and will not be described in detail here.

[0053] Furthermore, such as Figure 12As shown, each roller group 364 includes at least two rollers 364a, a bevel gear 367, and a rotating shaft 364b coaxially fixed to the rollers 364a and the bevel gear 367. The diameter of the bevel gear 367 is smaller than the diameter of the rollers 364a, and each bevel gear 367 meshes with the adjacent bevel gear 367. In this embodiment, the bevel gear 367 is on the same side as the center of the arc track and is located on the outer side of the frame 363. Preferably, the distance from the axis of the roller group 364 to the axis of the adjacent roller group 364 or to the adjacent straight track is less than half the width of the conveying base plate 40, and the spacing between adjacent rollers 364a in each roller group 364 is less than the length of the conveying base plate 40. The width is the dimensional spacing of the conveying base plate 40 parallel to the conveying direction, the length is the dimensional spacing of the conveying base plate 40 perpendicular to the conveying direction, and the conveying direction is the transport direction of the conveying base plate 40, i.e., the running direction of the conveying track.

[0054] Furthermore, the turning assembly 362 also includes a reversing bevel gear 366, which is fixedly connected to the output shaft of the drive motor 365. The drive motor 365 drives the reversing bevel gear 366 to rotate. The reversing bevel gear 366 meshes with a bevel gear 367, causing the bevel gear 367 to rotate, which in turn drives other bevel gears 367 to rotate, thereby realizing the rotation of all rotating shafts 364b and rollers 364a. This provides the power for the conveying base plate 40 above the arc track to move along the arc track, and conveys the conveying base plate 40 to the next straight track to complete the turn.

[0055] Furthermore, the turning assembly 362 also includes a conveyor plate 368, which is located above the frame. Its upper surface is slightly lower than the upper surface of the roller assembly 364. The conveyor plate 368 has several through holes 369, which correspond one-to-one with each roller 364a. Each roller 364a passes through the through hole 369 and partially protrudes from the upper surface of the conveyor plate 368, and is rotatably connected to the conveyor plate 368.

[0056] In some embodiments, the baking oven floor track 36 is connected to the first track 382 and the second track 384 via a reversing assembly 386, with the second track 384 perpendicular to the baking oven floor track 36. A camera is installed at the reversing assembly 386 or the conveying outlet end of the spray booth floor track 36 to detect the down spraying effect of the Christmas tree. Both the camera and the reversing assembly 386 are electrically connected to a control unit. The control unit compares the down spraying effect or amount on the surface of the Christmas tree with the image from the camera to determine whether the Christmas tree has completed down spraying. When the Christmas tree has completed down spraying, the reversing assembly 386 controls the Christmas tree to enter the second track 384 along the baking oven floor track 36. When the Christmas tree has not completed down spraying, the reversing assembly 386 controls the Christmas tree to enter the first track 382 and then enter the upper part floor track and / or the spray booth floor track for secondary down spraying. In some embodiments, a reversing assembly 386 is also provided at the connection between the upper part floor track 32 and the spray booth floor track 34, and at the connection between the first track 382 and the upper part floor track 32. The commutation component 386 is an existing commutation structure, and will not be described in detail in this embodiment.

[0057] This invention has the following advantages over the prior art:

[0058] 1. The handle 432 of the clamp is relatively long and large, allowing workers to easily reach the handle 432 and tighten the clamp without having to constantly look around. This makes operation convenient, fast, and safe.

[0059] 2. The notch 421a of the sleeve body 421, the height limiting structure 422 and the side plates 423 on both sides together enable workers to find the right position and install the Christmas tree smoothly by simply touching it, without having to repeatedly look up and observe to align the trunk with the sleeve body 421. This solves the problem that workers are easily poked in the eye by branches when they are looking back and forth to find the position of the sleeve.

[0060] 3. When fixing the Christmas tree, the axis of the trunk of the Christmas tree coincides with the axis of the inner column of the sleeve and the main body of the sleeve 421. Therefore, when the Christmas tree is fixed on the production line and moves with the conveyor device and rotates in front of the spraying equipment for spraying, it can be more accurately aligned and maintain a uniform axis of rotation, resulting in a more uniform spraying effect.

[0061] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments and claims of this application are also intended to include the plural forms unless the context clearly indicates otherwise. The term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description relates to drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. In the description of this application, those skilled in the art will understand the specific meaning of the above terms in this application according to the specific circumstances.

[0062] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A Christmas tree spray system characterized by, The application relates to a Christmas tree conveying device, which comprises a spraying room, a drying room, a conveying track and a plurality of conveying bases moving along the conveying track; the conveying track comprises an upper piece ground track, a spraying room ground track, a drying room ground track and a lower piece ground track arranged in sequence; the spraying room ground track is arranged in the spraying room, the drying room ground track is arranged in the drying room, a conveying inlet of the upper piece ground track forms an upper piece area, and a conveying outlet of the lower piece ground track forms a lower piece area; a fixing device for fixing a Christmas tree is arranged on the conveying base and comprises a fixing seat and a sleeve; the fixing seat is arranged in the middle of the conveying base, and the sleeve is rotatably arranged above the fixing seat; the sleeve comprises a sleeve main body and a loose clamp; one side of the outer wall of the sleeve main body is provided with a longitudinal slit which vertically extends downwards from the top end of the sleeve main body; the loose clamp comprises a clamp ring and a handle; the clamp ring is sleeved on the periphery of the sleeve main body and is arranged above the lowest end of the longitudinal slit; the clamp ring is a circular ring structure with an opening, two fixing ears are arranged at the two ends of the opening respectively, and a groove is arranged on the outer side of the fixing ear away from the opening; one end of the handle is provided with two positioning side wings, the inner sides of the two positioning side wings are respectively in contact with the outer sides of the two fixing ears; the inner side of the positioning side wing is provided with a protruding part which is matched with the groove in shape, and the shapes of the protruding part and the groove are non-centrosymmetric; the handle is rotatably connected with the clamp ring, so that the protruding part is in contact with the non-groove part of the fixing ear or the groove, so as to lock or unlock the sleeve and the Christmas tree by the loose clamp. Two fixing ears are provided with openings with opposite centers; two positioning side wings are provided with through holes coaxial with the openings; the loose clamp further comprises a bolt and a nut; the head of the bolt is located outside a positioning side wing, the screw rod of the bolt passes through the through hole and the opening, and the nut located outside the other positioning side wing is tightly fixed, so that the handle is rotatably connected with the fixing ear position of the clamp ring. The outer wall of the sleeve main body is provided with a notch extending downwards from the top end on the side away from the longitudinal slit, and the width of the notch is greater than the outer diameter of the trunk of the Christmas tree; the clamp ring is located between the lowest end of the longitudinal slit and the lowest end of the notch. A height limiting structure is fixed on the outer wall of the sleeve main body, the upper surface of the lowest end of the height limiting structure is flush with the lowest end of the notch, and the height limiting structure is located above the clamp ring; the height limiting structure is located on the side of the sleeve main body with the notch, and the two fixing ears are located on the side of the sleeve main body with the longitudinal slit.

2. The Christmas tree spray system of claim 1, wherein: Two side plates are arranged on the two sides of the height limiting structure respectively, the highest end of the side plate is connected with the edge of the top end of the notch, and the lowest end of the side plate is connected with the height limiting structure.

3. The Christmas tree spray system of claim 2, wherein: The side plate is a triangular side plate, one side of the triangular side plate is connected with the outer wall of the sleeve, and the other side is connected with the edge of the height limiting structure; the distance between the two side plates gradually increases from the outer wall of the sleeve to the direction away from the sleeve.

4. The Christmas tree spray system of claim 3, wherein: ​ 5. The Christmas tree spray system of claim 4, wherein: ​ 6. The Christmas tree spray system of claim 5, wherein: ​ 7. The Christmas tree spray system of claim 6, wherein: The fixing device further comprises a sleeve inner column inside the sleeve body, which is fixed at the bottom of the sleeve body and has an axis coinciding with that of the sleeve body and an outer diameter smaller than the inner diameter of the Christmas tree; the outer wall of the sleeve inner column and the inner wall of the sleeve body are both attached with fluff cloth.

8. The Christmas tree spray system of claim 7, wherein: The sleeve inner column is a plurality of layers of cylinders with different diameters, and the diameters of the layers from top to bottom increase successively; or the sleeve inner column is a circular truncated cone or a circular cone, and the diameter thereof increases successively from top to bottom.

9. The Christmas tree spray system according to any one of claims 1-8, characterized in that: The spraying room ground rail is provided with at least one fluff spraying station, and a blocking air cylinder and a non-return device are arranged respectively in front of and behind the conveying front of each fluff spraying station for positioning the conveying bottom plate; and a fluff spraying device is arranged correspondingly to each fluff spraying station for spraying the Christmas tree on the conveying bottom plate.

10. The Christmas tree spray system of claim 9, wherein: The baking room ground rail comprises a plurality of straight conveying assemblies and a plurality of turning assemblies, and each turning assembly is connected with a straight conveying assembly at each end; the turning assembly comprises a rack and a driving motor, a plurality of roller groups are arranged on the rack, the roller groups are arranged in an arc shape and are spaced apart to form an arc-shaped track, each roller group comprises a roller, a bevel gear and a rotating shaft coaxially fixed with the roller and the bevel gear, the diameter of the bevel gear is smaller than that of the roller, and the bevel gear is engaged with an adjacent bevel gear; the output shaft of the driving motor is fixed with a reversing bevel gear, and the reversing bevel gear is engaged with one of the bevel gears.

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