Shielding jig for spraying container with nozzle
By designing a cap-shaped shielding fixture and a rotating connection structure, the gap problem between the shielding fixture and the container with a spout was solved, achieving a tight fit between the shielding fixture and the container spout, meeting food hygiene requirements, and facilitating the operation of the shielding fixture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAERS VACUUM CONTAINERS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-08
AI Technical Summary
Existing masking fixtures cannot effectively cover containers with mouths, causing paint to enter the gaps and stain the mouth, failing to meet food hygiene requirements.
A downward-opening, cap-shaped shielding fixture is designed, comprising a shielding top and shielding sides. Through the rotatable connection of a first cover and a second cover, combined with the limiting structure of the first and second protruding edges, the shielding fixture is ensured to fit snugly against the container mouth without gaps, and is held in place by buckles and slots.
It achieves a tight fit between the masking fixture and the container nozzle, preventing paint from entering the gap, ensuring hygiene requirements during the spraying process, and facilitating the removal and placement of the masking fixture.
Smart Images

Figure CN224208280U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of container spraying fixtures and tools, and particularly relates to a masking fixture for spraying containers with spouts. Background Technology
[0002] Existing containers generally require surface coating treatments, including painting, powder coating, and other processing methods.
[0003] Currently, there is increasing emphasis on food hygiene requirements for materials that come into contact with the human body. In some standards or market trends in the cup and kettle industry, coatings are not suitable for human contact. Therefore, some products require that there should be no coating on the continuous section from the mouth of the cup or kettle. Consequently, during the spraying process, factories have set up masking fixtures to cover the non-sprayed areas.
[0004] However, for containers with irregular openings, such as Figure 5 As shown, the container has a spout on one side of its opening, and the spout protrudes noticeably from the side wall of the container; as Figure 6 As shown in the figure, the masking fixture commonly used in the current spraying process is a ring structure with one open end. When it covers the mouth of the container, it can be clearly seen in the figure that the masking fixture and the mouth do not match, and there is a large gap. During the spraying process, the paint can easily enter the gap and cause paint to be contaminated at the mouth. Therefore, the masking fixture needs to be improved. Summary of the Invention
[0005] In order to solve the problems existing in the prior art, this utility model provides a masking fixture for spraying on containers with nozzles, which is set tightly to the nozzle of the container and is also very convenient to pick up and put down.
[0006] To achieve the above objectives, the present invention adopts the following technical solution.
[0007] A masking fixture for spraying a container with a nozzle is a cap-like structure with an opening facing downwards. It includes a masking top covering the upper opening of the container and a masking side covering the non-spraying area of the outer wall of the container. The masking top is divided into two parts to form a first masking top and a second masking top. The masking side is divided into two parts to form a first masking side and a second masking side. The first masking top and the first masking side are connected to form a first cover. The second masking top and the second masking side are connected to form a second cover. Both the first masking top and the first masking side protrude radially outwards to form a nozzle masking part that fits and conforms to the nozzle of the container. The first cover and the second cover are rotatably connected. The second cover is rotated upwards and flipped up to be in a pick-up / drop-off state. After the second cover is rotated downwards and aligned with the first cover, it is in a masking state. At this time, the first masking top and the second masking top are flush and aligned to restore the top of the side wall, and the first masking side and the second masking side are smoothly aligned to restore the masking side.
[0008] Preferably, the top of the first shield and the side of the first shield are integrally connected; the top of the second shield and the side of the second shield are integrally connected.
[0009] Preferably, the upper surface of the first shielding top and the outer surface of the first shielding side extend toward the second cover to form a first protruding edge; the lower surface of the second shielding top and the inner surface of the second shielding side extend toward the first cover to form a second protruding edge; the wall thickness of the first protruding edge and the second protruding edge is less than that of the shielding top; a first limiting step is formed between the first protruding edge and the first shielding top; a second limiting step is formed between the second protruding edge and the second shielding top; when in the shielding state, the first protruding edge covers the second protruding edge, and the first protruding edge and the second protruding edge respectively abut against and limit the second limiting step and the first limiting step.
[0010] Preferably, the outer surfaces at both ends of the second protrusion are provided with buckles; the inner surfaces at both ends of the first protrusion are provided with corresponding slots; when in the covered state, the buckles fall into the slots.
[0011] Preferably, the upper surface of the first shield top is provided with a first hinge; the upper surface of the second shield top is provided with a second hinge; the first hinge and the second hinge are connected by a hinge shaft after being aligned and inserted.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by adopting the above technical solution, by setting the mouth shielding part of the first cover to fit snugly with the mouth of the container, the gap between the shielding fixture and the mouth of the container is avoided, thus solving the problem of mouth paint contamination caused by the gap; and by setting the first cover and the second cover to be rotatably connected, the shielding fixture can be easily removed or placed after the second cover is rotated to the pick-up and put-down state.
[0013] Further beneficial effects are: by setting the first and second convex edges, in the masking state, the gap channel between the first cover and the second cover will pass through the overlapping area of the first and second convex edges, eliminating the straight gap; with this structure, during the spraying operation, the first and second convex edges can prevent paint from entering the container cavity or non-spraying area; and by setting the first and second limiting parts, in the masking state, the first masking top and the second masking top can be limited to be flush together.
[0014] A further beneficial effect is that by setting up the combination of buckles and slots, the second cover can be kept in close contact with the first cover in a concealed state, and is not easy to loosen. Attached Figure Description
[0015] Figure 1 This is a three-dimensional exploded structural diagram of the present invention.
[0016] Figure 2 yes Figure 1A three-dimensional structural diagram of the first cover.
[0017] Figure 3 This is a cross-sectional view of the structure when the shielding fixture covers the opening of the container.
[0018] Figure 4 This is a cross-sectional view of the shielding fixture being removed from the container opening.
[0019] Figure 5 This is a front view schematic diagram of a container with a spout.
[0020] Figure 6 This is a cross-sectional view of the existing shielding fixture covering the opening of a container. Detailed Implementation
[0021] To make the technical solution of this utility model clearer, the following description is in conjunction with the appendix. Figures 1 to 6 This specification provides a detailed description of the present invention. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the scope of protection of the present invention.
[0022] This utility model is a masking fixture for spraying containers with nozzles. It is a cap-like structure with the opening facing downwards, including a masking top and a masking side. The masking top covers the upper opening of the container, and the masking side fits and covers the non-spraying area of the outer wall of the container.
[0023] In one embodiment, the top of the shield is cut in half to form a first shield top 11 and a second shield top 21; the side shield is also cut in half to form a first shield side 12 and a second shield side 22; wherein the first shield top 11 and the first shield side 12 are connected to form a first cover 1, and the second shield top 21 and the second shield side 22 are connected to form a second cover 2, preferably a one-piece connection; the cut-off points (i.e., the connection points) of the first cover 1 and the second cover 2 are connected by rotation; the second cover 2 is rotated upwards to flip up and is in a pick-up / drop-off state; the second cover 2 is rotated downwards to fit with the first cover 1 and is in a shielding state, at which time the first shield top 11 and the second shield top 21 are flush, and the first shield side 12 and the second shield side 22 are joined together.
[0024] Specifically, the first shielding top 11 and the first shielding side 12 both protrude radially outward to form a mouth shielding part 14 that fits and conforms to the mouth of the container.
[0025] When in use, place the container with the mouth facing upwards. First, rotate the second cover 2 upwards to put it in the pick-up / placement position. Then, align the mouth shielding part 14 with the mouth of the container and cover the container mouth with the first cover 1, so that its first shielding side 12 is in contact with the non-spraying area of the outer wall of the container (including its mouth). Finally, flip the second cover 2 downwards so that it is in the shielding position with the first cover 1. At this time, the second shielding side 22 is also in contact with the non-spraying area of the outer wall of the container. The first shielding top 11 and the second shielding top 21 cover the upper opening of the container. Then, the spraying operation can be carried out. After the spraying is completed, flip the second cover 2 upwards to put it in the pick-up / placement position. At this time, you only need to tilt the shielding fixture upwards away from the mouth of the container to remove it.
[0026] With the above configuration, by providing a mouth shielding part 14 on the first cover 1 that fits snugly against the mouth of the container, gaps are avoided between the shielding fixture and the mouth of the container, thus solving the problem of paint smearing on the mouth caused by gaps; and by providing a rotatable connection between the first cover 1 and the second cover 2, the shielding fixture can be easily removed or placed after the second cover 2 is rotated into the pick-and-place state.
[0027] In one embodiment, the upper surface of the first shielding top 11 and the outer surface of the first shielding side 12 extend toward the second cover 2 to form a first protruding edge 131; the lower surface of the second shielding top 21 and the inner surface of the second shielding side 22 extend toward the first cover 1 to form a second protruding edge 231; and the wall thickness of the first protruding edge 131 and the second protruding edge 231 is less than the wall thickness of the shielding top (i.e., the combination of the first shielding top 11 and the second shielding top 21); such that a first limiting step 132 is formed between the first protruding edge 131 and the first shielding top 11, and a second limiting step 232 is formed between the second protruding edge 231 and the second shielding top 21; when in the shielding state, the first protruding edge 131 covers the top of the second protruding edge 231, and the first protruding edge 131 and the second protruding edge 231 are respectively limited on the second limiting step 232 and the first limiting step 132. In this structure, during the spraying operation, the first protruding edge 131 and the second protruding edge 231 can prevent paint from entering from the gap, and can limit the first masking top 11 and the second masking top 21 to be flush together in the masked state.
[0028] In one embodiment, a first hinge 133 is provided on the upper surface of the first shielding top 11, and a second connecting part 23 is also provided with a second hinge 233 on the upper surface of the second shielding top 21. After the first hinge 133 and the second hinge 233 are aligned and inserted, they are connected by a hinge shaft 3, so that the first cover 1 and the second cover 2 are rotatably connected.
[0029] In one embodiment, the outer surfaces of both ends of the second protrusion 231 are provided with buckles 234, and the inner surfaces of both ends of the first protrusion 131 are correspondingly provided with slots 134. In the covered state, the buckles 234 fall into the slots 134, keeping the first cover 1 and the second cover 2 together. When it is necessary to switch to the take-off state, the second cover 2 is rotated upward by applying force to make the buckles 234 disengage from the slots 134, and then the second cover 2 can be flipped upward.
Claims
1. A masking fixture for spraying a container with a nozzle, having a downward-facing cap-like structure, including a masking top covering the upper opening of the container and a masking side that fits and covers the non-spraying area of the outer wall of the container. Its features are: The top of the shield is divided into two to form a first shield top (11) and a second shield top (21). The shielding side is divided into two parts to form a first shielding side (12) and a second shielding side (22). The first shielding top (11) and the first shielding side (12) are connected and combined to form the first cover (1). The second shielding top (21) and the second shielding side (22) are connected and combined to form the second cover (2); The first shielding top (11) and the first shielding side (12) both protrude radially outward to form a mouth shielding part (14) that fits and conforms to the mouth of the container. The first cover (1) and the second cover (2) are rotatably connected; The second cover (2) rotates upward and flips up to be in the pick-up and put-down state; the second cover (2) rotates downward and is in the position to be combined with the first cover (1) and is in the shielding state. At this time, the first shielding top (11) and the second shielding top (21) are aligned and connected to restore the top of the side wall, and the first shielding side (12) and the second shielding side (22) are smoothly connected to restore the shielding side.
2. A masking fixture for spraying containers with nozzles according to claim 1, characterized in that: The top (11) and the side (12) of the first shield are integrally connected; The second shielding top (21) and the second shielding side (22) are integrally connected.
3. A masking fixture for spraying containers with nozzles according to claim 1, characterized in that: The upper surface of the first shielding top (11) and the outer surface of the first shielding side (12) extend toward the second cover (2) to form a first protruding edge (131). The lower surface of the second shielding top (21) and the inner surface of the second shielding side (22) extend toward the first cover (1) to form a second protruding edge (231). The wall thickness of both the first convex edge (131) and the second convex edge (231) is less than that of the top of the shield; A first limiting step (132) is formed between the first protruding edge (131) and the first shielding top (11). A second limiting step (232) is formed between the second protruding edge (231) and the second shielding top (21). When in the shielded state, the first protruding edge (131) covers the second protruding edge (231), and the first protruding edge (131) and the second protruding edge (231) respectively abut against the second limiting step (232) and the first limiting step (132).
4. A masking fixture for spraying containers with nozzles according to claim 3, characterized in that: The outer surfaces at both ends of the second protrusion (231) are provided with buckles (234); The inner surfaces at both ends of the first protruding edge (131) are provided with corresponding slots (134); When in the concealed state, the buckle (234) falls into the slot (134).
5. A masking fixture for spraying containers with nozzles according to claim 1, characterized in that: The upper surface of the first shielding top (11) is provided with a first hinge (133). The upper surface of the second shielding top (21) is provided with a second hinge (233). The first hinge (133) and the second hinge (233) are aligned and inserted, and then connected by the hinge shaft (3).