Electron beam curing shield device

Abstract

The application discloses an electron beam curing shielding device, which comprises a shielding cover, at least one jig and a conveying mechanism. The shielding cover is provided with a shielding channel, and the shielding channel is provided with a curing area. An electron beam emitting device is arranged above the curing area on the top wall of the shielding channel. The upper surface of the jig is provided with a containing cavity for containing a workpiece. The conveying mechanism can drive the jig to move along the shielding channel. When the jig is located in the shielding channel, the top end of the jig is close to the top wall of the shielding channel, and when the jig is located in the curing area, the electron beam emitting device faces the containing cavity. When the jig is in the curing area, the electron beam emitted by the electron beam emitting device can irradiate and cure the workpiece in the containing cavity, and the generated X rays can be reflected between the inner walls of the containing cavity and between the inner walls of the containing cavity and the workpiece, so that the reflection times of the X rays in the shielding channel are increased, and the leakage of the X rays is reduced.

Description

Technical Field

[0001] This invention relates to the field of electron beam curing technology, and in particular to an electron beam curing shielding device. Background Technology

[0002] Electron beam curing is a process that uses a high-energy electron beam to irradiate the surface of an object, thereby converting chemical substances (coatings, inks, and adhesives) from a liquid state to a solid state. When the electron beam hits the irradiated object or the inner wall of the shielded channel, it will produce X-rays that are harmful to the human body in the irradiated area.

[0003] Existing electron beam curing shielding devices typically include a shielding cover with a shielding channel. Within this channel are a conveying mechanism and an electron beam emitting device. To prevent X-rays generated during electron beam irradiation from leaking from both ends of the shielding channel, the height of the channel is usually reduced to increase the number of X-ray reflections within it, thereby reducing the amount of X-ray radiation leaking from the ends. However, this structure is generally only suitable for thinner materials, such as wood, metal, or glass. For thicker workpieces, such as automotive wheel hubs, the height of the shielding channel needs to be increased accordingly. Increasing the channel height makes X-ray leakage from both ends more likely, resulting in poorer shielding performance. Therefore, the length of the shielding channel usually needs to be extended to increase the number of X-ray reflections. However, extending the shielding channel increases the overall size of the electron beam curing shielding device, requiring more shielding material and space, thus increasing the production cost. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an electron beam curing shielding device that is suitable for workpieces with large thickness and has good shielding performance.

[0005] An electron beam curing shielding device according to an embodiment of the present invention includes: a shielding cover having a shielding channel, the shielding channel having a curing zone, and an electron beam emitting device mounted on the top wall of the shielding channel above the curing zone; at least one fixture having a receiving cavity for accommodating a workpiece on its upper surface; and a conveying mechanism capable of moving the fixture along the shielding channel; wherein, when the fixture is located within the shielding channel, the top end of the fixture is adjacent to the top wall of the shielding channel, and when the fixture is located within the curing zone, the electron beam emitting device faces the receiving cavity.

[0006] The electron beam curing shielding device according to embodiments of the present invention has at least the following beneficial effects:

[0007] By setting up a fixture for carrying the workpiece, a receiving cavity for accommodating the workpiece is opened on the upper surface of the fixture, such that the depth of the receiving cavity matches or is slightly higher than the thickness of the workpiece. In use, the workpiece to be cured is placed in the receiving cavity of the fixture, and the conveying mechanism can drive the fixture to move from the inlet of the shielding channel to the curing zone. When the fixture is in the curing zone, since the receiving cavity is opened on the upper surface of the fixture and the electron beam emitting device faces the opening of the receiving cavity, the electron beam emitted by the electron beam emitting device can hit the workpiece in the receiving cavity to irradiate and cure the workpiece. The generated X-rays can be reflected between the inner walls of the receiving cavity and between the inner wall of the receiving cavity and the workpiece, thereby increasing the number of X-ray reflections in the shielding channel and reducing the amount of X-ray radiation leaking from the inlet and outlet of the shielding channel. Thus, the electron beam curing shielding device of the present invention can be applied to workpieces with large thickness and has good shielding performance.

[0008] According to some embodiments of the present invention, when the fixture is located within the shielding channel, the left side wall of the fixture is adjacent to the left inner wall of the shielding channel, and the right side wall of the fixture is adjacent to the right inner wall of the shielding channel.

[0009] According to some embodiments of the present invention, the inner wall of the accommodating cavity is provided with a shielding layer.

[0010] According to some embodiments of the present invention, the accommodating cavity is provided with a clamping mechanism for fixing the workpiece.

[0011] According to some embodiments of the present invention, the conveying mechanism is a conveyor belt.

[0012] According to some embodiments of the present invention, at least one set of fixing mechanisms is provided between the fixture and the conveyor belt. The fixing mechanism includes a first fixing part provided on the fixture and a second fixing part provided on the conveyor belt, and the first fixing part and the second fixing part are detachably connected.

[0013] According to some embodiments of the present invention, one of the first fixing part and the second fixing part is a positioning post, and the other has a positioning hole adapted to the positioning post, and the positioning post is inserted into the positioning hole.

[0014] According to some embodiments of the present invention, at least one elastic element is provided between the fixture and the conveyor belt, one end of the elastic element is connected to or abuts against the bottom wall of the fixture, and the other end of the elastic element is connected to or abuts against the conveyor belt.

[0015] According to some embodiments of the present invention, the front sidewall of the fixture is provided with at least one air hole communicating with the accommodating cavity, and the shielding channel is provided with at least one gas supply device for conveying inert gas, and at least one of the gas supply devices is located in the curing zone or on the side of the curing zone near the outlet of the shielding channel.

[0016] According to some embodiments of the present invention, a filler is provided inside the accommodating cavity.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a cross-sectional schematic diagram of the electron beam curing shielding device according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the fixture according to an embodiment of the present invention;

[0021] Figure 3 This is another cross-sectional schematic diagram of the electron beam curing shielding device according to an embodiment of the present invention;

[0022] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0023] Figure label:

[0024] Shielding cover 100, shielding channel 110, inlet 111, outlet 112, curing zone 120, electron beam emitting device 130, conveyor belt 140, second fixing part 150;

[0025] Fixture 200, accommodating cavity 210, clamping mechanism 220, first fixing part 230, positioning hole 231, fastener 232, elastic element 240;

[0026] Workpiece 300. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0029] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0031] Reference Figures 1 to 3 An embodiment of the present invention provides an electron beam curing shielding device, which includes a shielding cover 100, eight fixtures 200, and a conveying mechanism. The shielding cover 100 has a shielding channel 110, within which a curing zone 120 is located. An electron beam emitting device 130 is mounted on the top wall of the shielding channel 110, positioned above the curing zone 120. The upper surface of each fixture 200 has a receiving cavity 210 for accommodating a workpiece 300. The conveying mechanism can move the fixtures 200 along the shielding channel 110. When the fixtures 200 are located within the shielding channel 110, their top ends are near the top wall of the shielding channel 110. When the fixtures 200 are located in the curing zone 120, the electron beam emitting devices 130 face the receiving cavity 210 of the fixtures 200.

[0032] In the above structure, a fixture 200 for carrying the workpiece 300 is provided, and a receiving cavity 210 for accommodating the workpiece 300 is formed on the upper surface of the fixture 200, so that the depth of the receiving cavity 210 matches or is slightly higher than the thickness of the workpiece 300. In use, the workpiece 300 to be cured is placed in the receiving cavity 210 of the fixture 200, and the conveying mechanism can drive the fixture 200 from the inlet 111 of the shielding channel 110 to the curing zone 120. When the fixture 200 is in the curing zone 120, the electron beam generating device can emit an electron beam to the workpiece 300 in the receiving cavity 210, thereby irradiating and curing the workpiece 300. After curing, the conveying mechanism then transports the fixture 200 from the curing zone 120 to the outlet 112 of the shielding channel 110. During this process, since the top of the fixture 200 is close to the top wall of the shielding channel 110, and when the fixture 200 moves to the curing zone 120, the electron beam emitting device 130 faces the opening of the receiving cavity 210. Thus, the electron beam emitted by the electron beam emitting device 130 can hit the workpiece 300 inside the receiving cavity 210. The generated X-rays can be reflected between the inner walls of the receiving cavity 210 and between the inner wall of the receiving cavity 210 and the workpiece 300. Furthermore, the X-rays emitted from the opening of the receiving cavity 210 can continue to reflect between the inner walls of the shielding channel 110 and between the inner wall of the shielding channel 110 and other fixtures 200. The X-rays are reflected between the outer walls of the shielding channel 110, which greatly increases the number of reflections of X-rays within the shielding channel 110 and reduces the amount of X-ray radiation leaking from the inlet 111 and outlet 112 of the shielding channel 110. As a result, the electron beam curing shielding device of this embodiment can be applied to workpieces 300 with large thickness. Compared with traditional electron beam curing shielding devices, it can increase the number of X-ray reflections without extending the length of the shielding channel 110. It not only has better shielding performance, but also does not increase the size of the device, does not require a large amount of shielding material and space, and reduces the production cost of the electron beam curing shielding device.

[0033] Furthermore, when the electron beam emitting device 130 emits an electron beam into the accommodating cavity 210 of the fixture 200, the electron beam can not only hit the upper surface of the workpiece 300 to cure the upper surface of the workpiece 300, but the electron beam can also be reflected multiple times in the accommodating cavity 210 to hit other side surfaces of the workpiece 300, thereby curing other surfaces of the workpiece 300, thus achieving multi-surface curing of the workpiece 300.

[0034] Understandably, the number of the aforementioned jigs 200 is eight, which is only for... Figure 1As an example, the number of fixtures 200 can be eight, one, two, or more; the present invention does not specifically limit this. When the number of fixtures 200 is at least two, each fixture 200 can be arranged sequentially along the shielding channel 110, and the conveying mechanism can drive each fixture 200 from the inlet 111 of the shielding channel 110 to the curing zone 120 and the outlet 112 of the shielding channel 110 sequentially. The conveying mechanism can simultaneously drive all fixtures 200 to move along the shielding channel 110, or each fixture 200 can be equipped with its own conveying mechanism, which can drive the corresponding fixture 200 to move along the shielding channel 110; the present invention also does not specifically limit this.

[0035] Understandably, when the fixture 200 is located within the shielding channel 110, the top of the fixture 200 is close to the top wall of the shielding channel 110. Specifically, when the fixture 200 is located within the shielding channel 110, the distance between the top of the fixture 200 and the top wall of the shielding channel 110 can be set to 1 mm or less. This ensures that the fixture 200 will not collide with the top wall of the shielding channel 110 when it moves within the shielding channel 110, while also making the distance between the top of the fixture 200 and the top wall of the shielding channel 110 sufficiently small. When the fixture 200 moves to the curing zone 120, the electron beam emitted by the electron beam emitting device 130 can almost entirely hit the receiving cavity 210 of the fixture 200. Furthermore, if the generated X-rays are to leak from the gap between the top of the fixture 200 and the top wall of the shielding channel 110, they need to undergo multiple reflections, thereby further reducing the amount of X-ray radiation leaking from the gap between the top of the fixture 200 and the top wall of the shielding channel 110.

[0036] It is understood that by setting a fixture 200 for carrying the workpiece 300, and opening a receiving cavity 210 on the upper surface of the fixture 200 to accommodate the workpiece 300, the depth of the receiving cavity 210 is matched with or slightly higher than the thickness of the workpiece 300. Specifically, in some embodiments, when the workpiece 300 is placed in the receiving cavity 210, the surface of the workpiece 300 that needs to be cured is 1 cm lower than the top of the fixture 200, thereby enabling better curing of the workpiece 300 in the receiving cavity 210.

[0037] Understandably, referring to Figure 1In some embodiments, the shielding channel 110 has an inclined section that slopes downwards from back to front. The curing zone 120 is located on this inclined section. An electron beam emitting device 130 is disposed at the top of the shielding channel 110 and above the curing zone 120, and the electron beam emission direction of the electron beam emitting device 130 is perpendicular to the inclined channel. Thus, when the fixture 200 is located in the curing zone 120, the electron beam emitting device 130 can emit an electron beam toward and into the receiving cavity 210 of the fixture 200, so that the electron beam emitted by the electron beam emitting device 130 can completely hit the workpiece 300 in the receiving cavity 210, thereby curing the surface of the workpiece 300. The inclined section extends the length of the shielding channel 110 without increasing the floor space of the entire electron beam curing shielding device.

[0038] Understandably, referring to Figure 1 The shielding cover 100 has a shielding channel 110 arranged in the front-to-back direction. The inlet 111 of the shielding channel 110 is located at the rear end of the shielding channel 110, and the outlet 112 of the shielding channel 110 is located at the rear end of the shielding channel 110. In use, the conveying mechanism drives the fixture 200 to be conveyed from back to front along the shielding channel 110.

[0039] Reference Figure 1 and Figure 3 In some embodiments, when the fixture 200 is located within the shielding channel 110, the left side wall of the fixture 200 is adjacent to the left inner wall of the shielding channel 110, and the right side wall of the fixture 200 is adjacent to the right inner wall of the shielding channel 110.

[0040] In the above structure, as the fixture 200 moves along the shielding channel 110, its left side wall is adjacent to the left inner wall of the shielding channel 110, and its right side wall is adjacent to the right inner wall of the shielding channel 110. This ensures that the fixture 200 does not collide or rub against the left and right inner walls of the shielding channel 110 when it moves within the shielding channel 110. At the same time, the distance between the left and right inner walls of the fixture 200 and the left and right inner walls of the shielding channel 110 is small enough that X-rays generated within the shielding channel 110 need to undergo multiple reflections to leak through the gap between the fixture 200 and the shielding channel 110. This further reduces the amount of X-ray radiation leaking from the inlet 111 and outlet 112 of the radiation channel.

[0041] Understandably, when the fixture 200 is located within the shielding channel 110, the left side wall of the fixture 200 is adjacent to the left inner wall of the shielding channel 110, and the right side wall of the fixture 200 is adjacent to the right inner wall of the shielding channel 110. Specifically, the distance between the left side wall of the fixture 200 and the left inner wall of the shielding channel 110 can be set to 2mm or less. This ensures that the fixture 200 does not collide or rub against the left and right inner walls of the shielding channel 110 when it moves within the shielding channel 110. At the same time, it ensures that the distance between the left and right inner walls of the fixture 200 and the left and right inner walls of the shielding channel 110 is small enough to further increase the number of X-ray reflections between the fixture 200 and the inner walls of the shielding channel 110, thereby further reducing the amount of X-ray radiation leaking from the inlet 111 and outlet 112 of the radiation channel.

[0042] Understandably, referring to Figure 1 In some embodiments, the shielding channel 110 has an inclined section that slopes downward from back to front. In order to ensure the stability of the jig 200 in the movement within the shielding channel 110, avoid collision or friction between the jig 200 and the inner wall of the shielding channel 110, and reduce the amount of X-ray radiation leaking from the inlet 111 and outlet 112 of the radiation channel, when the jig 200 moves along the shielding channel 110 to the corner of the shielding channel 110, the distance between the upper surface of the jig 200 and the top wall at the corner of the shielding channel 110 can be set to 5 mm.

[0043] Understandably, in order to further increase the number of X-ray reflections between the fixture 200 and the inner wall of the shielding channel 110, the distance between the bottom wall of the fixture 200 and the bottom wall of the shielding channel 110 can be controlled within 3mm.

[0044] In some embodiments, the inner wall of the accommodating cavity 210 is provided with a shielding layer.

[0045] In the above structure, the shielding layer further improves the shielding performance of the electron beam curing shielding device. When the electron beam emitting device 130 emits an electron beam into the accommodating cavity 210 of the fixture 200, the generated X-rays can be reflected between the inner walls of the accommodating cavity 210 and between the inner wall of the accommodating cavity 210 and the workpiece 300, thereby reducing the amount of X-ray radiation leaking from the opening of the accommodating cavity 210. In addition, the electron beam can not only hit the upper surface of the workpiece 300 to cure the upper surface of the workpiece 300, but the electron beam can also be reflected multiple times within the accommodating cavity 210 to hit other side surfaces of the workpiece 300, thereby curing other surfaces of the workpiece 300, thus achieving multi-surface curing of the workpiece 300.

[0046] It is understandable that the inner wall of the accommodating cavity 210 is provided with a shielding layer. Specifically, a shielding layer can be provided on all the inner walls of the accommodating cavity 210.

[0047] It is understood that the aforementioned shielding layer can specifically be a lead layer. Specifically, the lead equivalent of the bottom wall of the accommodating cavity 210 can be set to 10 mmPb, and the lead equivalent of the other side walls of the accommodating cavity 210 can be set to 3 mmPb, thereby achieving a good shielding effect. It should be noted that the lead equivalent of each side wall of the accommodating cavity 210 mentioned above is a preferred embodiment of the present invention, and the present invention does not specifically limit the specific lead equivalent of each side wall of the accommodating cavity 210. Furthermore, besides a lead layer, the shielding layer can also be a steel layer or a concrete layer, etc., and the present invention does not specifically limit this either.

[0048] Reference Figure 2 In some embodiments, the fixture 200 has a clamping mechanism 220 for fixing the workpiece 300 in its accommodating cavity 210.

[0049] In the above structure, the clamping mechanism 220 can improve the stability of the workpiece 300 during the conveying process, and avoid adverse phenomena such as tilting or tipping of the workpiece 300 during the conveying process, thereby achieving a better curing effect.

[0050] Understandably, referring to Figure 2 The clamping mechanism 220 can specifically adopt a support platform adapted to the structure of the workpiece 300, or it can adopt a clamp capable of clamping and fixing the workpiece 300, such as a robotic arm, or it can be provided with a pushing mechanism on two opposite side walls of the accommodating cavity 210. After the workpiece 300 is placed in the accommodating cavity 210, the two pushing mechanisms clamp and fix the workpiece 300. The pushing mechanism can be a cylinder, an electric push rod, a lead screw and nut mechanism, etc. In addition, the clamping mechanism 220 can also adopt an adsorption mechanism capable of adsorbing the workpiece 300, such as a negative pressure adsorption structure capable of adsorbing the workpiece 300 by negative pressure or a magnetic adsorption structure capable of magnetically attracting the workpiece 300. The present invention does not specifically limit the specific structure of the clamping mechanism 220.

[0051] Reference Figure 1 In some embodiments, the conveying mechanism is a conveyor belt 140.

[0052] In the above structure, by setting the conveying mechanism as a conveyor belt 140, and placing at least a portion of the conveyor belt 140 within the shielded channel 110, the fixture 200 is placed on the conveyor belt 140, which then drives the fixture 200 to move along the shielded channel 110. The conveyor belt 140 can carry multiple fixtures 200 and drive them to move along the shielded channel 110, and its operation is stable. The workpiece 300 within the fixture 200 is less likely to shake or tip over during transport, which is beneficial for irradiating and curing the workpiece 300.

[0053] It is understandable that, in addition to the conveyor belt 140, the conveying mechanism can also be a clamp or a moving platform that can move along the shielded channel 110. By using the clamp to hold the fixture 200 or placing the fixture 200 on the moving platform, the fixture 200 can be moved along the shielded channel 110.

[0054] Understandably, in order to further improve the smoothness of the movement of the fixture 200, the conveyor belt 140 can be specifically set as a metal conveyor belt 140. The metal conveyor belt 140 has a larger pressure bearing range and is not prone to unstable operation or even damage due to excessive pressure, which is beneficial for conveying heavier workpieces 300.

[0055] Reference Figures 1 to 4 In some embodiments, at least one set of fixing mechanisms is provided between the fixture 200 and the conveyor belt 140. The fixing mechanism includes a first fixing part 230 provided on the fixture 200 and a second fixing part 150 provided on the conveyor belt 140. The first fixing part 230 and the second fixing part 150 are detachably connected.

[0056] In the above structure, the fixing mechanism includes a detachably connected first fixing part 230 and a second fixing part 150, allowing the fixture 200 to be detachably connected to the conveyor belt 140 via the fixing mechanism. When the workpiece 300 needs to be cured, the fixture 200 is fixed to the conveyor belt 140 by the fixing mechanism, and the conveyor belt 140 can then drive the fixture 200 to move stably along the shielding channel 110. This avoids displacement of the fixture 200 during transport, which would lead to unstable transport. It also prevents the fixture 200 from colliding or rubbing against the side wall of the shielding channel 110 during transport. Furthermore, when the fixture 200 moves to the curing zone 120, the electron beam emitted by the electron beam emitting device 130 can be accurately emitted toward the receiving cavity 210 of the fixture 200, thereby improving the curing effect on the workpiece 300 and reducing X-ray leakage. When the workpiece 300 has been cured or when curing of the workpiece 300 is no longer required, the first fixing part 230 and the second fixing part 150 can be separated, thereby removing the fixture 200 from the conveyor belt 140. The structure is simple and the operation is flexible and convenient.

[0057] It is understood that the first fixing part 230 is disposed on the fixture 200. The first fixing part 230 and the fixture 200 can be integrally formed. Specifically, the first fixing part 230 can be integrally formed with the fixture 200 or welded together to form an integral structure. Alternatively, the first fixing part 230 can also be installed on the fixture 200 via a snap-fit ​​structure, a screw connection structure, etc. This invention does not specifically limit the specific method used. Similarly, the second fixing part 150 is disposed on the conveyor belt 140. The second fixing part 150 and the conveyor belt 140 can be integrally formed. Specifically, the second fixing part 150 can be integrally formed with the conveyor belt 140 or welded together to form an integral structure. Alternatively, the second fixing part 150 can also be installed on the conveyor belt 140 via a snap-fit ​​structure, a screw connection structure, etc. This invention does not specifically limit the specific method used.

[0058] Understandably, referring to Figure 1 In order for the conveyor belt 140 to stably transport multiple fixtures 200 at the same time, multiple second fixing parts 150 that can be detachably connected to the first fixing part 230 can be provided on the conveyor belt 140, and the multiple second fixing parts 150 are arranged sequentially at intervals along the conveying direction of the conveyor belt 140.

[0059] Reference Figures 1 to 4 In some embodiments, the second fixing part 150 is a positioning post provided on the conveyor belt 140, and the first fixing part 230 has a positioning hole 231 adapted to the positioning post, and the positioning post is inserted into the positioning hole 231.

[0060] In the above structure, during use, the positioning hole 231 on the first fixing part 230 of the fixture 200 is aligned with the positioning post on the conveyor belt 140, and the positioning post is inserted into the positioning hole 231. This not only positions the fixture 200 but also prevents displacement of the fixture 200 during transport, thereby preventing collisions or friction between the fixture 200 and the side wall of the shielding channel 110 during transport. In addition, the stable transport of the fixture 200 also helps to improve the curing effect on the workpiece 300 and reduce X-ray leakage. When the workpiece 300 has been cured or curing of the workpiece 300 is no longer required, the fixture 200 can simply be removed from the positioning post of the conveyor belt 140. The structure is simple and the operation is flexible and convenient.

[0061] It is understood that, in order to achieve positioning and fixing between the fixture 200 and the conveyor belt 140, in addition to setting the second fixing part 150 as a positioning post and opening a positioning hole 231 in the first fixing part 230 that matches the positioning post, the first positioning part can also be set as a positioning post and opening a positioning hole 231 in the second fixing part 150 that matches the positioning post. The present invention does not specifically limit this.

[0062] Understandably, to prevent the positioning pin from dislodging from the positioning hole 231 due to vibration during the conveying process, a fastener 232 can be installed on the positioning pin, with the first fixing part 230 clamped between the fastener 232 and the conveyor belt 140. Specifically, the fastener 232 can be a nut that is threadedly connected to the positioning pin.

[0063] It is understandable that, in addition to the structure in which the positioning pin and the positioning hole 231 cooperate with each other, the fixing mechanism can also adopt other structures.

[0064] For example, in some embodiments, one of the first fixing part 230 and the second fixing part 150 is an insert, and the other has a slot for inserting the insert. Both the insert and the slot can be arranged along the length of the shielding channel 110 and positioned on the left or right side of the fixture 200. The front end of the slot has a first abutment portion that abuts against the insert, and / or the rear end of the insert has a second abutment portion that abuts against the rear end of the slot. Thus, the engagement of the slot and the insert secures the fixture 200 to the conveyor belt 140, and the first and / or second abutment portions prevent the fixture 200 from sliding forward relative to the conveyor belt 140 during transport. To further secure the fixture 200, a set of fixing mechanisms can be provided on both the left and right sides of the fixture 200, thereby preventing collisions or friction between the fixture 200 and the inner wall of the shielding channel 110 during transport. In addition, inserts and slots can also be arranged along the width of the shielding channel 110 and positioned on the front side of the fixture 200, with the opening of the slot facing the fixture 200. Thus, the cooperation of the slot and insert can fix and position the fixture 200, while preventing the fixture 200 from sliding forward relative to the conveyor belt 140 during the conveying process.

[0065] It is understood that in some embodiments, the fixing mechanism may also employ an adsorption structure, meaning that the first fixing part 230 and the second fixing part 150 can adsorb each other, for example, through negative pressure adsorption or magnetic attraction. In other embodiments, the first fixing part 230 and the second fixing part 150 of the fixing mechanism may also engage with each other. Specifically, the second fixing part 150 is configured as an elastic hook rotatably mounted on the conveyor belt 140, and the first fixing part 230 has a slot that can be adapted to the hook. Alternatively, the first fixing part 230 may be an elastic hook rotatably mounted on the fixture 200, and the second fixing part 150 has a slot that can be adapted to the hook. In use, the fixture 200 is placed on the conveyor belt 140, and then the elastic hook is engaged into the corresponding slot. To make the connection between the fixture 200 and the conveyor belt 140 more stable, multiple sets of fixing mechanisms can be provided, and these multiple sets of fixing mechanisms can be arranged at intervals along the circumference of the fixture 200. The present invention does not specifically limit the specific structure of the first fixing part 230 and the second fixing part 150 in the fixing mechanism.

[0066] It is understood that when multiple sets of fixing mechanisms are provided between a fixture 200 and the conveyor belt 140, the multiple sets of fixing mechanisms can be one or a combination of the above-mentioned structures. For example, one set of fixing mechanisms can be configured as a result of the positioning pin and the positioning hole 231 cooperating with each other, and another set of fixing mechanisms can be configured as a structure of elastic hook and slot cooperating with each other. The present invention does not specifically limit this.

[0067] Reference Figure 3 and Figure 4 In some embodiments, the conveyor belt 140 may vibrate when transporting the fixture 200, which could easily lead to collisions or friction between the fixture 200 and the conveyor belt 140. This is especially true when the conveyor belt 140 is made of metal; collisions or friction between the fixture 200 and the conveyor belt 140 can easily damage both. Therefore, in some embodiments, at least one elastic element 240 is provided between the fixture 200 and the conveyor belt 140. One end of the elastic element 240 is connected to or abuts against the bottom wall of the fixture 200, and the other end is connected to or abuts against the conveyor belt 140. Thus, when the fixture 200 vibrates during transport, the elastic element 240 can act as a buffer, preventing direct collisions between the fixture 200 and the conveyor belt 140.

[0068] It is understandable that the elastic element 240 can specifically be a compression spring. Of course, in addition to this, the elastic element 240 can also be made of other elastic structures, such as rubber or silicone parts.

[0069] Understandably, referring to Figure 3 and Figure 4 In some embodiments, the fixing mechanism includes a first fixing part 230 disposed on the fixture 200 and a second fixing part 150 disposed on the conveyor belt 140. The second fixing part 150 is a positioning post disposed on the conveyor belt 140. The first fixing part 230 has a positioning hole 231 adapted to the positioning post, and the positioning post is inserted into the positioning hole 231. In addition, the fixing mechanism also includes a nut screwed to the positioning post. The positioning hole 231 of the fixture 200 is inserted into the positioning post, and the bottom wall of the fixture 200 is located between the conveyor belt 140 and the nut. An elastic member 240 is sleeved on the outer periphery of the positioning post and located between the conveyor belt 140 and the bottom wall of the fixture 200. Thus, the fixing mechanism can fix and position the fixture 200, and the elastic member 240 can reduce the collision between the fixture 200 and the conveyor belt 140. The structure is simple and easy to install.

[0070] In some embodiments, the front sidewall of the fixture 200 is provided with at least one air hole communicating with the accommodating cavity 210, and the shielding channel 110 is provided with at least one gas supply device for conveying inert gas. The at least one gas supply device is located in the curing zone 120 or on the side of the curing zone 120 near the outlet 112 of the shielding channel 110.

[0071] In the above structure, the gas supply channel can deliver inert gas into the shielding channel 110. The inert gas can enter the accommodating cavity 210 through the air hole and fill the accommodating cavity 210, enveloping the workpiece 300 in the accommodating cavity 210. By opening the air hole on the front side wall of the fixture 200 and setting the gas supply device in the curing zone 120 or on the side of the curing zone 120 near the outlet 112 of the shielding channel 110, the inert gas can flow towards the inlet 111 of the shielding channel 110 and flow into the fixture 200 located on the side of the curing zone 120 near the inlet 111 of the shielding channel 110. Thus, when the fixture 200 moves from back to front along the shielding channel 110 to the curing zone 120, the air in the accommodating cavity 210 has been basically discharged, which facilitates electron beam irradiation curing of the surface of the workpiece 300.

[0072] It is understood that in some embodiments, the gas supply device is located at the upper part of the shielding channel 110, and the air holes are opened on the side wall of the fixture 200 and arranged upward from the inside to the outside, thereby facilitating the flow of inert gas from the shielding channel 110 into the accommodating cavity 210 and accelerating the discharge of air from the accommodating cavity 210.

[0073] It is understandable that nitrogen can be used as the inert gas.

[0074] In some embodiments, in order to further shorten the air venting time in the accommodating cavity 210, a filler may be provided in the accommodating cavity 210.

[0075] In the above structure, the filler can fill the space around the workpiece 300 in the accommodating cavity 210, only exposing the surface of the workpiece 300 that needs to be cured. This reduces the air volume in the accommodating cavity 210, so that when the inert gas rushes into the accommodating cavity 210, the air in the accommodating cavity 210 can be quickly discharged.

[0076] It is understood that in some embodiments, the filler can be customized according to the shape of the workpiece 300. When in use, the filler is placed in the accommodating cavity 210 and the workpiece 300 is loaded into the filler, thereby greatly reducing the air around the surface of the workpiece 300 to be cured, and thus enabling the air in the accommodating cavity 210 to be quickly discharged to complete the electron beam irradiation curing of the workpiece 300.

[0077] It is understood that the filler can specifically be made of expanded polyurethane foam. Of course, in addition to this, the filler can also be made of plastic, rubber or other materials, and the present invention does not specifically limit this.

[0078] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An electron beam curing shield apparatus, characterized by, The utility model relates to a shielding device for electron beam irradiation, comprising: a shielding cover (100) with a shielding channel (110) having a curing zone (120) therein, a top wall of the shielding channel (110) being provided with an electron beam emitting device (130) above the curing zone (120); at least one jig (200) having an accommodating cavity (210) on an upper surface thereof for accommodating a workpiece (300); a conveying mechanism capable of moving the jig (200) along the shielding channel (110); wherein, when the jig (200) is located in the shielding channel (110) with a top end of the jig (200) adjacent to a top inner wall of the shielding channel (110), the electron beam emitting device (130) is directed towards the accommodating cavity (210) when the jig (200) is located in the curing zone (120); when the jig (200) is located in the shielding channel (110) with a left side wall of the jig (200) adjacent to a left side inner wall of the shielding channel (110) and a right side wall of the jig (200) adjacent to a right side inner wall of the shielding channel (110); when the jig moves to the curing zone, the electron beam emitting device is directed towards an opening of the accommodating cavity, so that the electron beam emitted by the electron beam emitting device can hit the workpiece in the accommodating cavity, and the generated X-rays can be reflected between the inner walls of the accommodating cavity and between the inner walls of the shielding channel.

2. The electron beam cure shielding apparatus of claim 1, wherein, Inner walls of the accommodating cavity (210) are provided with shielding layers.

3. The electron beam cure shielding apparatus of claim 1, wherein, A clamping mechanism (220) for fixing the workpiece (300) is arranged in the accommodating cavity (210).

4. The electron beam cure shielding apparatus of claim 1, wherein, The conveying mechanism is a conveyor belt (140).

5. The electron beam cure shielding apparatus of claim 4, wherein, At least one set of fixing mechanisms is arranged between the jig (200) and the conveyor belt (140), the fixing mechanisms comprising a first fixing part (230) arranged on the jig (200) and a second fixing part (150) arranged on the conveyor belt (140), the first fixing part (230) and the second fixing part (150) being detachably connected.

6. The electron beam cure shielding apparatus of claim 5, wherein, One of the first fixing part (230) and the second fixing part (150) is a positioning column, and the other is provided with a positioning hole (231) matched with the positioning column, the positioning column being inserted into the positioning hole (231).

7. The electron beam curing shield apparatus of claim 5 or 6, wherein, At least one elastic member (240) is arranged between the jig (200) and the conveyor belt (140), one end of the elastic member (240) being connected to or abutting against a bottom wall of the jig (200), and the other end of the elastic member (240) being connected to or abutting against the conveyor belt (140).

8. The electron beam cure shielding apparatus of claim 1, wherein, The front side wall of the jig (200) is provided with at least one air hole communicating with the accommodating cavity (210), and at least one gas supply device for conveying inert gas is arranged in the shielding channel (110), and at least one of the gas supply devices is arranged in the solidification area (120) or on the side of the solidification area (120) close to the outlet (112) of the shielding channel (110).

9. The electron beam cure shielding apparatus of claim 8, wherein, The accommodating cavity (210) is provided with a filling piece.

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