Adjustable rotating spray frame for Christmas tree trunk

CN224894449UActive Publication Date: 2026-10-27LONGHUI JIALIN CRAFTS CO LTD
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Patent Information

Application Number
CN202522147927.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-11
Publication Date
2026-10-27
Estimated Expiration
2035-10-11

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  • Figure CN224894449U_ABST
    Figure CN224894449U_ABST
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Abstract

The utility model relates to processing equipment technical field, concretely is adjustable Christmas tree trunk rotation spraying frame, including the fixed base that Christmas tree trunk spraying was used, the top edge of fixed base is equipped with several groups even equidistance and is used for fixing the rotating seat of Christmas tree trunk, the top surface center of fixed base is equipped with the spraying pipe, the driving gear of fixed base inner center rotates under the drive of servo motor, drives the same number of driven gear of corresponding position with the meshing with it and rotates, and the driven gear rotates the rotating seat through the pivot, so that many groups Christmas tree trunk are even sprayed simultaneously, the piston rod of clamping servo hydraulic cylinder can clamp the Christmas tree trunk and fix, the spraying hole that several columns even equidistance presents annular arrangement and is same number, corresponding position with the rotating seat of spraying pipe outer wall, can ensure that even covers Christmas tree trunk and sprays, and the overall structure realizes the efficient, even spraying of Christmas tree trunk.
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Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, specifically to an adjustable Christmas tree trunk rotating spraying rack. Background Technology

[0002] In the Christmas tree manufacturing industry, the spraying of the tree trunk is a crucial step in giving the tree its aesthetic appearance and specific functions. The quality of the spraying directly affects the quality and market competitiveness of the finished Christmas tree. With the continuous expansion of the Christmas tree market and the increasing demands of consumers for product quality, how to achieve efficient, uniform, and stable spraying of the tree trunk has become a key issue that the industry urgently needs to address.

[0003] Current Christmas tree trunk spraying technology has shortcomings. Regarding coating uniformity, the lack of an effective rotational drive mechanism during spraying makes it difficult for the paint to evenly cover the trunk surface, easily leading to spraying dead spots and uneven coating thickness, severely affecting the appearance quality of the Christmas tree. In terms of spraying efficiency, traditional spraying methods typically involve spraying each Christmas tree trunk sequentially, making it impossible to work on multiple trunks simultaneously, resulting in low production efficiency and difficulty meeting the needs of large-scale production. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable rotating spraying rack for Christmas tree trunks to solve the problems of uneven spraying and low efficiency of existing Christmas tree trunks mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable Christmas tree trunk rotary spraying rack includes a fixed base for spraying the Christmas tree trunk, wherein a number of evenly spaced rotating seats for fixing the Christmas tree trunk are installed on the top edge of the fixed base, and a spraying pipe is installed at the center of the top surface of the fixed base.

[0007] A drive gear is installed at the center of the fixed base. The edge of the drive gear is meshed with a number of driven gears that are the same as the number of driven gears and whose positions correspond to those of the rotating base. A servo motor is installed at the bottom center of the drive gear. The center of the driven gear is coaxially connected to the bottom of the rotating base through a rotating shaft.

[0008] The top surface of the rotating base has a fixed groove for placing the Christmas tree trunk. The outer walls of the rotating base are symmetrically provided with clamping servo hydraulic cylinders. The piston rod of the clamping servo hydraulic cylinder passes through the rotating base and extends into the fixed groove.

[0009] The outer wall of the spray tube has several rows of uniformly spaced, ring-shaped spray holes. The number of rows of spray holes is the same as the number of rotating seats, and the two are positioned correspondingly.

[0010] Preferably, the number of rotating seats is 3-6 sets, which can ensure high production efficiency, make reasonable use of space, and ensure the smooth progress of the spraying operation.

[0011] Preferably, a spray pipe seat for fixing the spray pipe is installed at the center of the top surface of the fixed base. The bottom of the spray pipe and the spray pipe seat are interference-fitted, which can form a tight connection between the spray pipe and the spray pipe seat. This effectively prevents the spray pipe from shifting or loosening due to paint pressure or equipment vibration during the spraying process, ensuring the stability of the spray pipe during operation, and thus ensuring that the spraying operation can be carried out accurately and continuously.

[0012] Preferably, each set of rotating shafts is provided with a bearing seat at the connection between the shaft and the fixed base, so that the rotating shaft can rotate more smoothly.

[0013] Preferably, the piston rod end of the clamping servo hydraulic cylinder is coaxially connected to a clamping seat, so that the clamping force is more evenly distributed on the surface of the main body, thereby fixing the main body more firmly in the fixing groove.

[0014] Preferably, the bottom edge of the fixed groove is provided with several uniformly spaced through holes for draining liquid, which can drain the excess liquid in time and prevent the coating from accumulating in the fixed groove.

[0015] Preferably, the top of the spray pipe is equipped with a connecting pipe head that connects to an external material conveying pipe, so that the paint can be smoothly conveyed from the external material conveying pipe into the spray pipe, ensuring a sufficient supply of paint for the spraying operation.

[0016] Compared with existing technologies, the advantages of this utility model are as follows: In this adjustable Christmas tree trunk rotary spraying frame, the fixed base provides stable support for the entire spraying frame. Several sets of rotating seats on its top edge can evenly and firmly fix the Christmas tree trunk. The spraying pipe in the center of the top surface can spray the Christmas tree trunk. The active gear in the center of the fixed base rotates under the drive of the servo motor, which drives the driven gears that mesh with it to rotate in the same number and corresponding positions as the rotating seats. The driven gears drive the rotating seats to rotate through the rotating shaft, so that multiple sets of Christmas tree trunks are sprayed evenly at the same time. The fixed groove in the center of the top surface of the rotating seat is used to place the Christmas tree trunk. The piston rods of the clamping servo hydraulic cylinders on both sides of the outer wall can extend into the fixed groove to clamp and fix the Christmas tree trunk. Several rows of spraying holes on the outer wall of the spraying pipe are evenly and equidistantly arranged in a ring and are the same number and corresponding positions as the rotating seats, which can ensure that the spraying evenly covers the Christmas tree trunk. The overall structure realizes efficient and uniform spraying of the Christmas tree trunk. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model in use;

[0019] Figure 2 This is a cross-sectional structural diagram of the fixed base of this utility model;

[0020] Figure 3 This is a top view of the rotating base of this utility model.

[0021] 10. Fixed base; 11. Spray tube holder; 12. Drive gear; 13. Driven gear; 14. Rotating shaft; 15. Servo motor; 16. Bearing housing;

[0022] 20. Rotary seat; 21. Fixed groove; 22. Clamping servo hydraulic cylinder; 23. Clamping seat; 24. Through hole;

[0023] 30. Spray pipe; 31. Spray hole; 32. Connecting pipe head. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Adjustable Christmas tree trunk rotating spray painting rack, such as Figures 1-3As shown, the device includes a fixed base 10 for spraying the Christmas tree trunk. Several sets of evenly spaced rotating seats 20 for fixing the Christmas tree trunk are installed on the top edge of the fixed base 10. A spraying pipe 30 is installed at the center of the top surface of the fixed base 10. A drive gear 12 is installed at the center of the fixed base 10. The edge of the drive gear 12 is meshed with driven gears 13, the same number and corresponding in position as the rotating seats 20. A servo motor 15 is installed at the bottom center of the drive gear 12. The center of the driven gears 13 is coaxially connected to the bottom of the rotating seats 20 via a rotating shaft 14. A fixing groove 21 for placing the Christmas tree trunk is opened at the center of the top surface of the rotating seat 20. Clamping servo hydraulic cylinders 22 are symmetrically arranged on both sides of the outer wall of the rotating seat 20. The piston rods of the clamping servo hydraulic cylinders 22 pass through the rotating seat 20 and extend into the fixing groove 21. Several rows of evenly spaced, annularly arranged spraying holes 31 are opened on the outer wall of the spraying pipe 30. The number of rows of spraying holes 31 is the same as the number of rotating seats 20, and their positions are... Correspondingly, the fixed base 10 provides stable support for the entire spraying frame, and several sets of rotating seats 20 on its top edge can evenly and firmly fix the Christmas tree trunk. The spraying pipe 30 at the center of the top surface can spray the Christmas tree trunk. The drive gear 12 at the center of the fixed base 10 rotates under the drive of the servo motor 15, which drives the driven gears 13 that mesh with it and are the same number and position as the rotating seats 20 to rotate. The driven gears 13 drive the rotating seats 20 to rotate through the rotating shaft 14, so that multiple sets of Christmas tree trunks are evenly sprayed at the same time. The fixed groove 21 at the center of the top surface of the rotating seat 20 is used to place the Christmas tree trunk. The piston rods of the clamping servo hydraulic cylinders 22 symmetrically arranged on both sides of the outer wall can extend into the fixed groove 21 to clamp and fix the Christmas tree trunk. Several rows of spraying holes 31 evenly and equidistantly arranged in a ring on the outer wall of the spraying pipe 30 and are the same number and position as the rotating seats 20 can ensure that the spraying covers the Christmas tree trunk evenly. The overall structure realizes efficient and uniform spraying of the Christmas tree trunk.

[0027] It is worth noting that there are 3-6 sets of rotating seats 20, which can reasonably distribute several sets of Christmas tree trunks on the fixed base 10. This ensures that multiple Christmas tree trunks can be sprayed at the same time, improving spraying efficiency, while avoiding space congestion due to excessive number, which would affect the spraying effect and ease of operation.

[0028] Furthermore, a spray tube seat 11 for fixing the spray tube 30 is installed at the center of the top surface of the fixed base 10. The bottom of the spray tube 30 and the spray tube seat 11 are interference fit, which can make the spray tube 30 stably installed on the fixed base 10, preventing the spray tube 30 from shaking or shifting during the spraying process, and ensuring the accuracy and stability of the spraying.

[0029] Each set of rotating shafts 14 is provided with a bearing seat 16 at the connection between the shaft and the fixed base 10. The bearing seat 16 can provide good support and rotation guidance for the rotating shaft 14, reduce the frictional resistance when the rotating shaft 14 rotates, and enable the rotating shaft 14 to smoothly drive the rotating seat 20 to rotate. At the same time, it can also extend the service life of the rotating shaft 14 and related components.

[0030] Specifically, a clamping seat 23 is coaxially connected to the piston rod end of the clamping servo hydraulic cylinder 22. The clamping seat 23 can increase the contact area between the piston rod of the clamping servo hydraulic cylinder 22 and the main trunk of the Christmas tree, making the clamping more stable and preventing the main trunk of the Christmas tree from loosening during the rotation spraying process, which would affect the spraying quality.

[0031] It is worth noting that the bottom edge of the fixing groove 21 has several evenly spaced through holes 24 for drainage. During the spraying process, excess paint may flow into the fixing groove 21. The through holes 24 can drain this liquid in time, preventing the paint from accumulating in the fixing groove 21 and affecting the fixing of the Christmas tree trunk and the spraying effect. It also facilitates subsequent cleaning work.

[0032] In addition, the top of the spray pipe 30 is equipped with a connecting pipe head 32 that connects to the external material conveying pipe, which facilitates the connection between the spray pipe 30 and the external material conveying pipe, ensuring that the paint can be smoothly transported from the external material conveying pipe to the spray pipe 30, providing a sufficient supply of paint for the spraying operation and ensuring the continuity of the spraying work.

[0033] The working principle of this adjustable Christmas tree trunk rotating spray painting rack:

[0034] First, the entire device is placed inside the fixed cylinder. Multiple sets of Christmas tree trunks are placed in the fixed grooves 21 at the center of the top surface of different rotating seats 20. The clamping servo hydraulic cylinder 22 is activated, and its piston rod extends, driving the clamping seat 23 at the end to move towards the Christmas tree trunk, thus firmly clamping the trunk.

[0035] Next, connect the external material delivery pipe to the connecting pipe head 32 at the top of the spray pipe 30 to ensure that the paint can be smoothly fed into the spray pipe 30. The length of the spray pipe 30 should be selected according to the height of the Christmas tree trunk.

[0036] Then, the servo motor 15 is started, which drives the drive gear 12 to rotate. The drive gear 12 drives the driven gear 13 that meshes with it to rotate. The driven gear 13 drives the rotating seat 20 to rotate through the rotating shaft 14 and under the support of the bearing seat 16, thereby making the Christmas tree trunk rotate.

[0037] Meanwhile, the paint is sprayed out from several rows of uniformly spaced, ring-shaped spray holes 31 on the outer wall of the spray pipe 30. Since the number of rows of spray holes 31 is the same as the number of rotating seats 20 and their positions correspond, the main trunk of the rotating Christmas tree can be sprayed evenly. During the spraying process, the through holes 24 at the bottom edge of the fixing groove 21 can drain excess liquid in time.

[0038] After the spraying is completed, turn off the servo motor 15 and the paint conveyor, clamp the piston rod of the servo hydraulic cylinder 22 and retract it, then take out the sprayed Christmas tree trunk.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable Christmas tree trunk rotary spray painting rack, comprising a fixed base (10) for spraying the Christmas tree trunk, characterized in that: The top edge of the fixed base (10) is equipped with several sets of evenly spaced rotating seats (20) for fixing the trunk of the Christmas tree, and a spray pipe (30) is installed at the center of the top surface of the fixed base (10). A drive gear (12) is installed at the center of the fixed base (10). The edge of the drive gear (12) is meshed with a driven gear (13) that is the same number and position as the rotating seat (20). A servo motor (15) is installed at the bottom center of the drive gear (12). The center of the driven gear (13) is coaxially connected to the bottom of the rotating seat (20) through a rotating shaft (14). The rotating base (20) has a fixed groove (21) for placing the Christmas tree trunk at the center of its top surface. The rotating base (20) has clamping servo hydraulic cylinders (22) symmetrically arranged on both sides of its outer wall. The piston rod of the clamping servo hydraulic cylinder (22) passes through the rotating base (20) and extends into the fixed groove (21). The outer wall of the spray tube (30) is provided with several rows of uniformly spaced spray holes (31) arranged in a ring. The number of rows of spray holes (31) is the same as the number of the rotating seat (20), and the two are in corresponding positions.

2. The adjustable Christmas tree trunk rotary spray painting rack according to claim 1, characterized in that: The number of rotating seats (20) is 3-6 sets.

3. The adjustable Christmas tree trunk rotary spray painting rack according to claim 1, characterized in that: The top center of the fixed base (10) is equipped with a spray pipe seat (11) for fixing the spray pipe (30), and the bottom of the spray pipe (30) is interference-fitted with the spray pipe seat (11).

4. The adjustable Christmas tree trunk rotary spray painting rack according to claim 1, characterized in that: Each of the rotating shafts (14) is provided with a bearing seat (16) at the connection between the fixed base (10) and the shaft (14).

5. The adjustable Christmas tree trunk rotary spray painting rack according to claim 1, characterized in that: The piston rod end of the clamping servo hydraulic cylinder (22) is coaxially connected to a clamping seat (23).

6. The adjustable Christmas tree trunk rotary spray painting rack according to claim 1, characterized in that: The bottom edge of the fixed groove (21) is provided with several uniformly spaced through holes (24) for draining liquid.

7. The adjustable Christmas tree trunk rotary spray painting rack according to claim 1, characterized in that: The top of the spray pipe (30) is equipped with a connecting pipe head (32) that is connected to an external material conveying pipe.