A screen printing device for heat spreaders

Abstract

The utility model discloses a screen printing device for radiator, including base, base, first sliding seat, horizontal adjustment subassembly, second sliding seat, longitudinal adjustment subassembly, support, fixture, jacking subassembly, work table and printing mechanism, the base is laid on the base, first sliding seat movably is established on the base, horizontal adjustment subassembly is used for driving first sliding seat on the base horizontal removal, second sliding seat movably is established on first sliding seat, longitudinal adjustment subassembly is used for driving second sliding seat on first sliding seat longitudinal removal, the support is fixed on the second sliding seat top surface, the fixture is set up above the support, jacking subassembly is used for driving the fixture elevatrix, the work table is set up on the base, printing mechanism is set up on the work table. The utility model can realize the adjustment of fixture position in horizontal direction and vertical direction to the printing of different specifications radiator can be adapted, and the generality is good, can promote radiator printing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology for radiators, specifically a screen printing device for radiators. Background Technology

[0002] Heat sinks are used in modern electronic products to maintain the operation of their internal electronic components within permissible temperatures. For example, computer CPUs and graphics cards require substantial heat sinks, as do the power transistors, horizontal output transistors, and power amplifier transistors in televisions. These heat sinks are typically made of aluminum alloy, brass, or bronze, and can be plate-shaped, fin-shaped, or multi-fin-shaped. They usually include a base and several heat dissipation fins arranged on the bottom surface of the base.

[0003] Currently, the aforementioned radiators are generally manufactured through extrusion, and require further processes such as cutting and grooving to finally form the finished product. Depending on the processing requirements, logos and other patterns need to be printed on the radiator surface using screen printing. Traditionally, there are two methods: manual printing using a manual screen printing table and printing using a screen printing machine. However, most existing screen printing machines have fixed screen frames, with fixed positions and dimensions. When screen printing radiators, this means that printing can only be done on the same location on the surface of one type of radiator at a certain horizontal height, and it cannot adapt to printing on radiators of different specifications. For example, radiators of the same type may have different heights and / or widths, and different types of radiators may also have different heights and / or widths. When printing on different locations on different radiators, operators need to change specialized screen frames and / or fixtures, and even different screen printing machines, resulting in poor screen printing efficiency for radiators. Utility Model Content

[0004] The purpose of this invention is to provide a screen printing device for radiators that can adapt to printing on radiators of different specifications. It has good versatility and practicality. When processing radiators of different heights and / or widths, it does not require frequent changes of fixtures, thereby improving the efficiency of radiator screen printing. This solves the problem mentioned in the background art that existing screen printing machines cannot adapt to printing on radiators of different specifications, resulting in poor screen printing efficiency for radiators.

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

[0006] A screen printing apparatus for radiators includes a base, a base plate, a first slide, a horizontal adjustment component, a second slide, a vertical adjustment component, a support, a fixture, a lifting component, a worktable, and a printing mechanism. The base plate is laid on the base plate, the first slide is movably mounted on the base, the horizontal adjustment component is used to drive the first slide to move laterally on the base, the second slide is movably mounted on the first slide, the vertical adjustment component is used to drive the second slide to move longitudinally on the first slide, the support is fixed to the top surface of the second slide, the fixture is mounted above the support, the lifting component is used to drive the fixture to rise and fall, the worktable is mounted on the base, and the printing mechanism is mounted on the worktable.

[0007] Preferably, the bracket has an internal receiving space, and the lifting assembly includes a support plate, a first cylinder, and guide rods. The support plate is lifted and lowered above the bracket, the first cylinder is installed in the receiving space of the bracket, the piston rod of the first cylinder passes upward through the top surface of the bracket and is connected to the bottom surface of the support plate, and the two guide rods are movably mounted on the bracket and connected to the bottom surface of the support plate.

[0008] Preferably, the top surface of the fixture has a workpiece groove for placing the radiator, and a part-removal groove extending through to the side wall of the fixture is provided below the workpiece groove.

[0009] Preferably, the top surface of the base is provided with a first guide groove, and the first slide is movably disposed in the first guide groove.

[0010] Preferably, the lateral adjustment assembly includes a first bearing seat and a first screw. The first bearing seat is disposed on one side of the first guide groove. The first screw extends along the length of the first guide groove and is rotatably disposed within the first guide groove. One end of the first screw is rotatably connected to the first bearing seat. A first nut sleeve is disposed at the bottom of the first slide block and is rotatably connected to the first screw through the first nut sleeve.

[0011] Preferably, the printing mechanism includes a mounting base, a support plate, an oil supply assembly, an oil scraping assembly, a second cylinder, and a third cylinder. The mounting base is disposed on the top surface of the worktable. One end of the support plate is hinged to the mounting base. The oil supply assembly, disposed above the fixture, is connected to one end of the support plate. The oil scraping assembly is disposed above the oil supply assembly. The second cylinder is disposed on the support plate and is used to drive the oil scraping assembly to move longitudinally. The third cylinder is disposed on the worktable and is used to drive the support plate to swing obliquely upward or downward.

[0012] Preferably, the oil supply assembly includes a first hanging plate, a clamping frame, a mesh frame, a wire mesh, and locking screws. The first hanging plate is connected to one end of a support plate and extends vertically downward to one side of the fixture. The clamping frame is connected to the first hanging plate. A clamping groove is formed on one side of the clamping frame support plate. One end of the mesh frame is inserted into the clamping groove, and the other end extends horizontally to the top of the fixture. A mesh opening is formed in the middle of the mesh frame, penetrating its upper and lower surfaces. The wire mesh is arranged in the mesh opening and connected to the inner wall around the mesh opening.

[0013] Preferably, the scraping assembly includes a second mounting plate, a sliding plate, a fourth cylinder, a first mounting block, and a scraper blade. The second mounting plate is connected to the piston rod of the second cylinder. The sliding plate is vertically movable on the side wall of the second mounting plate. The piston rod of the fourth cylinder, located at the top of the second mounting plate, is downwardly connected to the sliding plate. The first mounting block is connected to the bottom of the sliding plate and has a blade groove for the scraper blade to insert into.

[0014] Preferably, the scraping assembly includes a fifth cylinder, a second mounting block, and a return ink blade. The fifth cylinder is disposed on the side wall of the second mounting plate facing away from the slide plate. The piston rod of the fifth cylinder is connected downward to the second mounting block, and the second mounting block has a slot for inserting the return ink blade.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by cooperating with the horizontal adjustment component, the vertical adjustment component and the lifting component, the position of the fixture in the horizontal and vertical directions can be adjusted, thereby adapting to the printing of radiators of different specifications. It has good versatility and strong practicality. When processing radiators of different heights and / or widths, there is no need to frequently change the fixture, thereby improving the efficiency of radiator screen printing. The entire adjustment process is simple to operate and convenient to adjust. Attached Figure Description

[0016] Figure 1 This is a side view of the screen printing device for a radiator according to the present invention during printing.

[0017] Figure 2 This is a side view of the oil scraping assembly of this utility model;

[0018] Figure 3 This is a side view of a portion of the structure of a screen printing device for a radiator according to the present invention.

[0019] Figure 4 This is a side view of the screen printing device for radiators according to the present invention during part removal;

[0020] Figure 5 This is a top view of the wire frame of this utility model.

[0021] In the diagram: 1. Base; 2. Base seat; 21. First guide groove; 3. First slide; 31. Second guide groove; 4. Lateral adjustment assembly; 41. First bearing seat; 42. First screw; 5. Second slide; 6. Longitudinal adjustment assembly; 61. Second bearing seat; 62. Second screw; 7. Bracket; 8. Fixture; 81. Workpiece groove; 82. Part removal groove; 9. Lifting assembly; 91. Pallet; 92. First cylinder; 93. Guide rod; 10. Worktable; 11. Printing mechanism; 111. Installation 112. Base; 113. Support plate; 114. Oil supply assembly; 1131. First hanging plate; 1132. Clamping frame; 1133. Wire frame; 1134. Wire mesh; 1135. Locking screw; 114. Scraper assembly; 1141. Second hanging plate; 1142. Slide plate; 1143. Fourth cylinder; 1144. First mounting block; 1145. Scraper blade; 1146. Fifth cylinder; 1147. Second mounting block; 1148. Ink return blade; 115. Second cylinder; 116. Third cylinder. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "more than" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figure 1-5 A screen printing apparatus for radiators includes a base 1, a base 2, a first slide 3, a horizontal adjustment component 4, a second slide 5, a vertical adjustment component 6, a support 7, a fixture 8, a lifting component 9, a worktable 10, and a printing mechanism 11. The base 2 is laid on the base 1. The first slide 3 is movably mounted on the base 1. The horizontal adjustment component 4 is used to move the first slide 3 laterally on the base 1. The second slide 5 is movably mounted on the first slide 3. The vertical adjustment component 6 is used to move the second slide 5 longitudinally on the first slide 3. In this embodiment, the movement direction of the first slide 3 is set to the X-axis direction, and the movement direction of the second slide 5 is set to the Y-axis direction, perpendicular to the movement direction of the first slide 3. The support 7 is fixed to the top surface of the second slide 5. The fixture 8 is disposed above the support 7 and is used to place the radiator. The lifting component 9 is used to raise and lower the fixture 8. The workbench 10 is mounted on the base 1 and located on one side of the base 2. The printing mechanism 11 is mounted on the workbench 10 and is used to print on the heat sink on the fixture 8.

[0025] When printing on the radiator on the fixture 8 through the printing mechanism 11, this utility model first adjusts the position of the first slide 3 on the base 1 through the horizontal adjustment component 4, that is, adjusts the position of the first slide 3 in the X-axis direction; at the same time, the position of the second slide 5 on the first slide 3 can also be adjusted through the vertical adjustment component 6, that is, adjusts the position of the second slide 5 in the Y-axis direction, so as to adjust the position of the fixture 8 on the bracket 7, so that the radiator on the fixture 8 is aligned with the printing position of the printing mechanism 11. Finally, the fixture 8 is lifted by the lifting component 9 until it contacts the printing mechanism 11, and the screen printing is completed by the printing mechanism 11. The whole process is simple to operate and easy to adjust. Through the cooperation between the horizontal adjustment component 4, the vertical adjustment component 6 and the lifting component 9, the position of the fixture 8 in the horizontal and vertical directions can be adjusted, so as to adapt to the printing of radiators of different specifications. It has good versatility and strong practicality. When processing radiators of different heights and / or widths, there is no need to frequently change the fixture 8, thereby improving the efficiency of radiator screen printing 1134.

[0026] Please see Figure 1 as well as Figure 3 The base 2 has a first guide groove 21 on its top surface, and the first slide 3 is movably disposed within the first guide groove 21. The lateral adjustment assembly 4 includes a first bearing seat 41 and a first screw 42. The first bearing seat 41 is disposed on one side of the first guide groove 21, and the first screw 42 extends along the length of the first guide groove 21 and is rotatably disposed within the first guide groove 21. One end of the first screw 42 is rotatably connected to the first bearing seat 41, and a first nut sleeve (not shown) is disposed at the bottom of the first slide 3. By rotatably connecting the first nut sleeve to the first screw 42, when the first screw 42 rotates, the first nut sleeve moves axially along the first screw 42, thereby correspondingly driving the first slide 3 to move along the length of the first guide groove 21, that is, the first slide 3 moves along the X-axis direction, thereby realizing the position adjustment of the fixture 8 in the X-axis direction.

[0027] Please see Figure 3The top surface of the first slide 3 has a second guide groove 31, the length direction of which is perpendicular to the length direction of the first guide groove 21. The second slide 5 is movably disposed within the second guide groove 31. The longitudinal adjustment assembly 6 includes a second bearing seat 61 and a second screw 62. The second bearing seat 61 is disposed on one side of the second guide groove 31, and the second screw 62 extends along the length direction of the second guide groove 31 and is rotatably disposed within the second guide groove 31. One end of the second screw 62 is rotatably connected to the second bearing seat 61. In this embodiment, the second screw 62 is perpendicular to the first screw 42. The bottom of the second slide 5 is provided with a second nut sleeve, which is rotatably connected to the second screw 62. When the second screw 62 rotates, the second nut sleeve moves axially along the second screw 62, thereby correspondingly driving the second slide 5 to move along the length direction of the second guide groove 31, that is, the second slide 5 moves along the Y-axis direction, thereby realizing the position adjustment of the fixture 8 in the Y-axis direction, in conjunction with the transverse adjustment assembly 4 to realize the adjustment of the fixture 8 in the horizontal plane.

[0028] Please see Figure 3 The support 7 has an internal accommodating space. The lifting assembly includes a support plate 91, a first cylinder 92, and guide rods 93. The support plate 91 is raised and lowered above the support 7. The first cylinder 92 is installed in the accommodating space of the support 7. The piston rod of the first cylinder 92 passes upward through the top surface of the support 7 and connects to the bottom surface of the support plate 91. In this embodiment, there are at least two guide rods 93. The two guide rods 93 are movably arranged on the support 7 and connected to the bottom surface of the support plate 91. Two symmetrical guide cylinders are provided on the top of the support 7. The two guide rods 93 are respectively telescopically arranged in the corresponding guide cylinders. Through the cooperation of the guide cylinders and guide rods 93, the support plate 91 can be stably raised and lowered in the vertical direction. In this embodiment, the support 7 is a hollow square frame.

[0029] Please see Figure 3 The top surface of the fixture 8 has a workpiece groove 81 for placing the heat sink. In this embodiment, the shape of the workpiece groove 81 can be adapted to heat sinks of different heights and / or different widths within the same series. Below the workpiece groove 81, a part-removal groove 82 extending to the side wall of the fixture 8 is provided for removing and placing the heat sink. Both ends of the fixture 8 and both ends of the support plate 91 have corresponding screw holes. Bolts are inserted into the screw holes. By cooperating with the screw holes, different fixtures 8 can be replaced, enabling the printing and processing of more types of heat sinks.

[0030] Please see Figure 1-2The printing mechanism 11 includes a mounting base 111, a support plate 112, an oil supply assembly 113, an oil scraping assembly 114, a second cylinder 115, and a third cylinder 116. The mounting base 111 is disposed on the top surface of the worktable 10. One end of the support plate 112 is hinged to the mounting base 111. The oil supply assembly 113, located above the fixture 8, is connected to one end of the support plate 112. The oil scraping assembly 114 is disposed above the oil supply assembly 113. The second cylinder 115 is disposed on the support plate 112 and is used to drive the oil scraping assembly 114 to move longitudinally, so as to cooperate with the oil supply assembly 113 to print on the radiator on the fixture 8. The third cylinder 116 is disposed on the worktable 10 and is used to drive the support plate 112 to swing obliquely upward or downward, so that the oil supply assembly 113 and the oil scraping assembly 114 are disengaged from the fixture 8, making it easier to remove the radiator from the fixture 8. In this embodiment, the top surface of the workbench 10 is provided with a cavity for accommodating the third cylinder 116; the support plate 112 extends in a direction away from the oil supply assembly 113 to form a connecting part; the piston rod of the third cylinder 116 is hinged to the connecting part.

[0031] Please see Figure 1 as well as Figure 5 The oil supply assembly 113 includes a first mounting plate 1131, a clamping frame 1132, a mesh frame 1133, a wire mesh 1134, and a locking screw 1135. The first mounting plate 1131 is connected to one end of the support plate 112 and extends vertically downward to one side of the fixture 8. The clamping frame 1132 is connected to the first mounting plate 11, and a clamping groove is formed on one side of the support plate 112. One end of the mesh frame 1133 is inserted into the clamping groove, and the other end extends horizontally above the fixture 8. Please refer to [link / reference]. Figure 5 The mesh frame 1133 has a through-hole in its center, and the wire mesh 1134 is arranged inside the through-hole and connected to the inner wall around the through-hole. The wire mesh 1134 has mesh holes for ink to pass through, so as to form a pattern on the surface of the radiator. One end of the locking screw 1135 extends downward into the clamping frame 1132 and abuts against the mesh frame 1133 to lock the mesh frame 1133 in the clamping groove of the clamping frame 1132. In this embodiment, when the mesh frame 1133 needs to be replaced, simply loosen the locking screw 1135, remove the old mesh frame 1133, insert one end of the new mesh frame 1133 into the clamping groove, and then lock the new mesh frame 1133 with the locking screw 1135.

[0032] Please see Figure 1-2The ink scraping assembly 114 includes a second mounting plate 1141, a sliding plate 1142, a fourth cylinder 1143, a first mounting block 1144, and a doctor blade 1145. The second mounting plate 1141 is connected to the piston rod of the second cylinder 115. The sliding plate 1142 is movably mounted on the side wall of the second mounting plate 1141 in a vertical direction. The piston rod of the fourth cylinder 1143, which is located at the top of the second mounting plate 1141, is connected downward to the sliding plate 1142. The first mounting block 1144 is connected to the bottom end of the sliding plate 1142. The first mounting block 1144 has a blade groove for the doctor blade 1145 to be inserted.

[0033] In addition, the scraper assembly 114 also includes a fifth cylinder 1146, a second mounting block 1147, and a return ink blade 1148. The fifth cylinder 1146 is disposed on the side wall of the second mounting plate 1141 facing away from the slide plate 1142. The piston rod of the fifth cylinder 1146 is connected downward to the second mounting block 1147, and the second mounting block 1147 has a slot for the return ink blade 1148 to be inserted.

[0034] During printing, such as Figure 1-2 As shown, firstly, the fifth cylinder 1146 drives the ink return blade 1148 to move upward, while at the same time, the fourth cylinder 1143 drives the doctor blade 1145 to move downward until the doctor blade 1145 abuts against the screen 1134; then the second cylinder 115 drives the entire printing mechanism 11 along... Figure 1 As indicated by the arrow, the doctor blade 1145 moves vertically to the left, simultaneously squeezing the ink on the screen 1134 downwards, causing the ink to pass through the mesh of the screen 1134 and adhere to the heat sink of the fixture 8; as shown in the image. Figure 4 As shown, after printing is completed, the third cylinder 116 drives the support plate 112, the second cylinder 115, and the printing mechanism 11 to swing diagonally upwards, and then the printed radiator on the fixture 8 can be removed; after the new radiator is placed into the fixture 8, the third cylinder 116 drives the support plate 112, the second cylinder 115, and the printing mechanism 11 to swing diagonally downwards until the screen frame 1133 swings to the horizontal, then the fifth cylinder 1146 drives the ink return blade 1148 to move downwards until the ink return blade 1148 abuts against the screen 1134, at the same time the fourth cylinder 1143 drives the doctor blade 1145 to move upwards, then the second cylinder 115 drives the entire printing mechanism 11 to move longitudinally to the right, pushing the ink back to its original position through the ink return blade 1148, and then according to Figure 1 Simply repeat the printing action in the direction of the arrow.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screen printing apparatus for radiators, characterized in that: The device includes a base, a base plate, a first slide, a lateral adjustment component, a second slide, a longitudinal adjustment component, a support, a fixture, a lifting component, a worktable, and a printing mechanism. The base plate is laid on the base plate. The first slide is movably mounted on the base plate. The lateral adjustment component is used to move the first slide laterally on the base plate. The second slide is movably mounted on the first slide. The longitudinal adjustment component is used to move the second slide longitudinally on the first slide. The support is fixed to the top surface of the second slide. The fixture is mounted above the support. The lifting component is used to raise and lower the fixture. The worktable is mounted on the base plate, and the printing mechanism is mounted on the worktable.

2. The screen printing apparatus for radiators according to claim 1, characterized in that: The bracket has an internal receiving space. The lifting assembly includes a support plate, a first cylinder, and guide rods. The support plate is raised and lowered above the bracket. The first cylinder is installed in the receiving space of the bracket. The piston rod of the first cylinder passes upward through the top surface of the bracket and is connected to the bottom surface of the support plate. The two guide rods are movably mounted on the bracket and connected to the bottom surface of the support plate.

3. The screen printing apparatus for radiators according to claim 1, characterized in that: The top surface of the fixture has a workpiece slot for placing the radiator, and a part-removal slot extending through to the side wall of the fixture is provided below the workpiece slot.

4. The screen printing apparatus for radiators according to claim 1, characterized in that: The base has a first guide groove on its top surface, and the first slide is movably disposed in the first guide groove.

5. The screen printing apparatus for radiators according to claim 4, characterized in that: The lateral adjustment assembly includes a first bearing seat and a first screw. The first bearing seat is disposed on one side of the first guide groove. The first screw extends along the length of the first guide groove and is rotatably disposed within the first guide groove. One end of the first screw is rotatably connected to the first bearing seat. A first nut sleeve is disposed at the bottom of the first slide block and is rotatably connected to the first screw through the first nut sleeve.

6. The screen printing apparatus for radiators according to any one of claims 1-5, characterized in that: The printing mechanism includes a mounting base, a support plate, an oil supply assembly, an oil scraping assembly, a second cylinder, and a third cylinder. The mounting base is located on the top surface of the workbench. One end of the support plate is hinged to the mounting base. The oil supply assembly, located above the fixture, is connected to one end of the support plate. The oil scraping assembly is located above the oil supply assembly. The second cylinder is located on the support plate and is used to drive the oil scraping assembly to move longitudinally. The third cylinder is located on the workbench and is used to drive the support plate to swing diagonally upward or downward.

7. The screen printing apparatus for radiators according to claim 6, characterized in that: The oil supply assembly includes a first hanging plate, a clamping frame, a mesh frame, a wire mesh, and locking screws. The first hanging plate is connected to one end of a support plate and extends vertically downward to one side of the fixture. The clamping frame is connected to the first hanging plate. A clamping groove is formed on one side of the clamping frame support plate. One end of the mesh frame is inserted into the clamping groove, and the other end extends horizontally to the top of the fixture. A mesh opening is formed in the middle of the mesh frame, penetrating its upper and lower surfaces. The wire mesh is arranged in the mesh opening and connected to the inner wall around the mesh opening.

8. The screen printing apparatus for radiators according to claim 7, characterized in that: The scraping assembly includes a second mounting plate, a sliding plate, a fourth cylinder, a first mounting block, and a scraper blade. The second mounting plate is connected to the piston rod of the second cylinder. The sliding plate is vertically movable and mounted on the side wall of the second mounting plate. The piston rod of the fourth cylinder, located at the top of the second mounting plate, is connected downward to the sliding plate. The first mounting block is connected to the bottom of the sliding plate and has a blade groove for the scraper blade to be inserted.

9. The screen printing apparatus for radiators according to claim 8, characterized in that: The scraping assembly includes a fifth cylinder, a second mounting block, and a return ink blade. The fifth cylinder is located on the side wall of the second mounting plate facing away from the slide plate. The piston rod of the fifth cylinder is connected downward to the second mounting block, and the second mounting block has a slot for the return ink blade to be inserted.

Images