SMT solder paste skip printing device

Abstract

The utility model relates to the field of through printing detection devices, in particular to an SMT solder paste through printing device which comprises a bottom plate, a cross beam is fixedly installed on the upper surface of the bottom plate, one end of the cross beam is fixedly connected with a detection device, and a feeding assembly is fixedly arranged on the upper surface of the bottom plate. Each feeding assembly comprises a first fixing frame, a first rubber rotating roller, a chain, a chain wheel, a first motor, a first fixing frame, a baffle and a supporting rod, and the discharging assembly is movably arranged between the feeding assemblies. According to the utility model, the printed circuit board and the through-printing circuit board can be moved out of the detection equipment from two paths, and when the through-printing is detected, the through-printing circuit board is directly moved out of the detection equipment from the detection station through the blanking assembly, so that the mode that the through-printing circuit board is moved out from the same path and manually taken away is replaced; and the circuit board is prevented from being taken mistakenly by manual material taking during rapid and continuous detection.

Description

Technical Field

[0001] This utility model relates to the field of solder paste stencil detection devices, specifically to an SMT solder paste stencil detection device. Background Technology

[0002] SMT (Surface Mount Technology) is an abbreviation for a series of processes that are carried out on the basis of PCB. Various electrical appliances require different SMT processing technologies. In the current technology, the detection of missing prints in SMT on mobile phone PCB boards is generally carried out automatically by inspection equipment.

[0003] Existing testing equipment uses a conveyor to transport circuit boards to the testing station for missing print detection, and then removes them from the testing equipment. When a missing print is detected, the missing circuit board also needs to be removed from the same path and then manually removed. During rapid and continuous testing, it is easy to pick up the wrong circuit board when manually picking up the material, which is not convenient to automatically remove the missing circuit board directly when a missing print is detected. Utility Model Content

[0004] To overcome the aforementioned technical problems, the present invention aims to provide an SMT solder paste stencil printing device. A second motor drives the circuit board to the center of the unloading assembly. When a stencil is detected, a bidirectional linear motor operates, separating the circuit board from the second rubber roller, placing the circuit board above the two top supports. A first cylinder retracts, causing the top supports to move the circuit board downwards. Then, a second cylinder extends, pushing the pusher plate to move the circuit board into the material frame. This allows for the removal of both the fully printed circuit board and the stencil from the detection equipment via two separate paths. When a stencil is detected, the unloading assembly directly removes the stencil from the detection equipment, replacing the need to remove the stencil from the same path and manually remove it, thus preventing manual handling of incorrect circuit boards during rapid, continuous testing.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An SMT solder paste printing device includes a base plate, a crossbeam fixedly mounted on the upper surface of the base plate, a detection device fixedly connected to one end of the crossbeam, a feeding assembly fixedly mounted on the upper surface of the base plate, the feeding assembly including a first fixed frame, a first rubber roller, a chain, a sprocket, a first motor, a first fixed frame, a baffle and a support rod, a discharging assembly movably mounted between the feeding assemblies, the discharging assembly including a second fixed frame, a second rubber roller, a second motor, a second fixed frame, a first cylinder, a top frame, a support frame, a second cylinder and a push plate, and a moving assembly fixedly mounted below the discharging assembly.

[0007] Furthermore, multiple support rods are fixedly installed on the lower surface of the first fixed frame, the lower end of the support rods is fixedly connected to the base plate, multiple first rubber rollers are rotatably connected inside the first fixed frame and penetrate through the first fixed frame, and multiple sprockets are fixedly installed on one end surface of the first rubber roller.

[0008] Furthermore, the chain is movably sleeved on the outside of the sprocket, and the chain is movably engaged with multiple sprockets respectively. The first fixing frame is fixedly installed on the outer surface of the first motor. One end of the first fixing frame is fixedly connected to the first fixing frame. The output end of the first motor is fixedly connected to the sprocket. The baffle is fixedly installed on the upper surface of the first fixing frame located on one side of the chain.

[0009] Furthermore, multiple No. 2 rubber rollers are rotatably connected inside the No. 2 fixed frame and penetrate the No. 2 fixed frame. The No. 2 fixed bracket is fixedly installed on the outer surface of the No. 2 motor, and one end of the No. 2 fixed bracket is fixedly connected to the No. 2 fixed frame.

[0010] Furthermore, the output end of the second motor is fixedly connected to one end of a second rubber roller, the support frame is fixedly installed on the lower surface of the second fixed frame, and the second cylinder is fixedly installed on the inner surface of the support frame.

[0011] Furthermore, the push plate is fixedly installed on one end surface of the second cylinder, and the top frame is fixedly installed on the upper end surface of the first cylinder.

[0012] Furthermore, the moving component includes a bidirectional linear motor and a material frame, the first cylinder is fixedly installed on the outer surface of the bidirectional linear motor, the lower end of the second cylinder is fixedly connected to two sliders of the bidirectional linear motor, and the material frame is fixedly installed on the inner surface of another support frame.

[0013] The beneficial effects of this utility model are:

[0014] 1. By moving the circuit board into the unloading assembly, i.e. below the detection device, the baffle restricts the position of the chain, so that the chain is always engaged with the sprocket. The No. 1 motor runs, driving the sprocket to rotate. Through engagement with the chain, it drives multiple No. 1 rubber rollers to rotate, completing the loading and unloading of the circuit board.

[0015] 2. When motor number two operates, it drives rubber roller number two to rotate, moving the circuit board to the middle position of the unloading assembly. When a missing print is detected, bidirectional linear motor operates, driving two fixed frames number two to move to both sides, separating the circuit board from rubber roller number two, placing the circuit board above the two top frames. Cylinder number one retracts, causing the top frames to move the circuit board downwards. Then, cylinder number two extends, causing the push plate to push the circuit board, moving it into the material frame. This allows for the removal of both the fully printed circuit board and the missing circuit board from the detection equipment via two different paths. When a missing print is detected, the unloading assembly directly removes the missing circuit board from the detection station, replacing the need to remove it from the same path and manually remove it, thus preventing manual handling of the wrong circuit board during rapid and continuous detection. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall side sectional structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the feeding component and the moving component of this utility model;

[0020] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of the feeding component of this utility model;

[0021] Figure 5 This is a side cross-sectional structural diagram of the feeding component of this utility model.

[0022] In the diagram: 1. Base plate; 101. Crossbeam; 102. Detection device; 2. Feeding assembly; 201. Fixed frame No. 1; 202. Rubber roller No. 1; 203. Sprocket; 204. Chain; 205. Motor No. 1; 206. Fixed frame No. 1; 207. Baffle; 208. Support rod; 3. Unloading assembly; 301. Fixed frame No. 2; 302. Rubber roller No. 2; 303. Motor No. 2; 304. Fixed frame No. 2; 305. Cylinder No. 1; 306. Top frame; 307. Support frame; 308. Cylinder No. 2; 309. Push plate; 4. Moving assembly; 401. Bidirectional linear motor; 402. Material frame. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] Please see Figure 1-5 As shown, an SMT solder paste printing device includes a base plate 1. A crossbeam 101 is fixedly installed on the upper surface of the base plate 1. A detection device 102 is fixedly connected to one end of the crossbeam 101. A feeding assembly 2 is fixedly installed on the upper surface of the base plate 1. The feeding assembly 2 includes a first fixed frame 201, a first rubber roller 202, a chain 204, a sprocket 203, a first motor 205, a first fixed frame 206, a baffle 207, and a support rod 208. A discharging assembly 3 is movably arranged between the feeding assemblies 2. The discharging assembly 3 includes a second fixed frame 301, a second rubber roller 302, a second motor 303, a second fixed frame 304, a first cylinder 305, a top frame 306, a support frame 307, a second cylinder 308, and a push plate 309. A moving assembly 4 is fixedly installed below the discharging assembly 3.

[0025] Multiple support rods 208 are fixedly installed on the lower surface of the first fixed frame 201, with the lower ends of the support rods 208 fixedly connected to the base plate 1. Multiple first rubber rollers 202 are rotatably connected inside the first fixed frame 201 and penetrate through the first fixed frame 201. Multiple sprockets 203 are fixedly installed on one end surface of the first rubber rollers 202. The support rods 208 are used to support the first fixed frame 201. The circuit board is placed between two sets of first rubber rollers 202. The first rubber rollers 202 rotate, driving the circuit board to move and move the circuit board into the feeding assembly 3, that is, below the detection device 102. The chain 204 is movably sleeved on the outside of the sprockets 203. 04 is movably connected to multiple sprockets 203. The first fixing frame 206 is fixedly installed on the outer surface of the first motor 205. One end of the first fixing frame 206 is fixedly connected to the first fixing frame 201. The output end of the first motor 205 is fixedly connected to the sprocket 203. The baffle 207 is fixedly installed on the upper surface of the first fixing frame 201 on one side of the chain 204. The baffle 207 restricts the position of the chain 204, so that the chain 204 is always engaged with the sprocket 203. When the first motor 205 runs, it drives the sprocket 203 to rotate. Through engagement with the chain 204, it drives multiple first rubber rollers 202 to rotate, completing the loading and unloading of the circuit board.

[0026] Multiple second-order rubber rollers 302 are rotatably connected inside and through the second-order fixed frame 301. A second-order fixed frame 304 is fixedly installed on the outer surface of the second-order motor 303, with one end of the second-order fixed frame 304 fixedly connected to the second-order fixed frame 301. When the second-order motor 303 operates, it drives the second-order rubber rollers 302 to rotate, moving the circuit board to the middle position of the unloading assembly 3. The output end of the second-order motor 303 is fixedly connected to one end of a second-order rubber roller 302. A support frame 307 is fixedly installed on the lower surface of the second-order fixed frame 301, and a second-order cylinder 308 is fixedly installed on the inner surface of a support frame 307. A push plate 309 is fixedly installed on one end surface of the second-order cylinder 308, and a top frame 306 is fixedly installed on the upper surface of the first-order cylinder 305. When the first-order cylinder 305 retracts, it causes the top frame 306 to move the circuit board downwards. Then, the second-order cylinder 308 extends, causing the push plate 309 to push the circuit board to move. The circuit board is moved into the material frame 402, so that the printed circuit board and the missing circuit board can be removed from the detection equipment through two paths. When a missing print is detected, the missing circuit board is directly removed from the detection equipment by the unloading component 3, which replaces the removal of the missing circuit board from the same path and manual removal, so as to avoid manual picking of the wrong circuit board during rapid and continuous detection. The moving component 4 includes a bidirectional linear motor 401 and a material frame 402. The first cylinder 305 is fixedly installed on the outer surface of the bidirectional linear motor 401, and the lower end of the second cylinder 308 is fixedly connected to the two sliders of the bidirectional linear motor 401. The material frame 402 is fixedly installed on the inner surface of another support frame 307. When a missing print is detected, the bidirectional linear motor 401 operates, driving the two second fixed frames 301 to move to both sides, so that the circuit board is separated from the second rubber roller 302, and the circuit board is located above the two top frames 306.

[0027] Working principle: During use, the circuit board is placed between two sets of No. 1 rubber rollers 202. The No. 1 rubber rollers 202 rotate, driving the circuit board to move into the unloading assembly 3, i.e., below the detection device 102. The baffle 207 restricts the position of the chain 204, ensuring that the chain 204 is always engaged with the sprocket 203. The No. 1 motor 205 operates, driving the sprocket 203 to rotate. Through engagement with the chain 204, it drives multiple No. 1 rubber rollers 202 to rotate, completing the loading and unloading of the circuit board. The No. 2 motor 303 operates, driving the No. 2 rubber roller 302 to rotate, moving the circuit board to the middle position of the unloading assembly 3. When a printing defect is detected, the bidirectional linear motor 401 operates. The two second fixed frames 301 are moved to the sides, separating the circuit board from the second rubber roller 302. The circuit board is positioned above the two top frames 306. The first cylinder 305 retracts, causing the top frame 306 to move the circuit board downwards. Then the second cylinder 308 extends, causing the push plate 309 to push the circuit board to move inside the material frame 402. This allows the fully printed circuit board and the missing circuit board to be removed from the detection equipment through two paths. When a missing circuit board is detected, the missing circuit board can be directly removed from the detection equipment by the unloading component 3, replacing the need to remove the missing circuit board from the same path and remove it manually. This avoids the mistake of manually picking up the wrong circuit board during rapid and continuous detection.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The above description is merely an example and illustration of the present utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. An SMT solder paste stencil printing device, characterized in that, Includes a base plate (1), on which a crossbeam (101) is fixedly installed, and a detection device (102) is fixedly connected to one end of the crossbeam (101). A feeding assembly (2) is fixedly provided on the upper surface of the base plate (1). The feeding assembly (2) includes a first fixed frame (201), a first rubber roller (202), a chain (204), a sprocket (203), a first motor (205), a first fixed frame (206), and a baffle (207). The feeding assembly (2) and the support rod (208) are connected to the feeding assembly (2), and the unloading assembly (3) is movably provided between them. The unloading assembly (3) includes a second fixed frame (301), a second rubber roller (302), a second motor (303), a second fixed frame (304), a first cylinder (305), a top frame (306), a support frame (307), a second cylinder (308), and a push plate (309). A moving assembly (4) is fixedly provided below the unloading assembly (3).

2. The SMT solder paste stencil printing device according to claim 1, characterized in that, Multiple support rods (208) are fixedly installed on the lower surface of the first fixed frame (201). The lower end of the support rod (208) is fixedly connected to the base plate (1). Multiple first rubber rollers (202) are rotatably connected inside the first fixed frame (201) and penetrate through the first fixed frame (201). Multiple sprockets (203) are fixedly installed on one end surface of the first rubber roller (202).

3. The SMT solder paste stencil printing device according to claim 1, characterized in that, The chain (204) is movably sleeved on the outside of the sprocket (203). The chain (204) is movably meshed with multiple sprockets (203). The first fixing frame (206) is fixedly installed on the outer surface of the first motor (205). One end of the first fixing frame (206) is fixedly connected to the first fixing frame (201). The output end of the first motor (205) is fixedly connected to the sprocket (203). The baffle (207) is fixedly installed on the upper surface of the first fixing frame (201) on one side of the chain (204).

4. The SMT solder paste stencil printing device according to claim 1, characterized in that, Multiple second rubber rollers (302) are rotatably connected inside the second fixed frame (301) and pass through the second fixed frame (301). The second fixed bracket (304) is fixedly installed on the outer surface of the second motor (303). One end of the second fixed bracket (304) is fixedly connected to the second fixed frame (301).

5. The SMT solder paste printing device according to claim 1, characterized in that, The output end of the second motor (303) is fixedly connected to one end of a second rubber roller (302), the support frame (307) is fixedly installed on the lower surface of the second fixed frame (301), and the second cylinder (308) is fixedly installed on the inner surface of the support frame (307).

6. The SMT solder paste stencil printing device according to claim 1, characterized in that, The push plate (309) is fixedly installed on one end surface of the second cylinder (308), and the top frame (306) is fixedly installed on the upper end surface of the first cylinder (305).

7. The SMT solder paste stencil printing device according to claim 1, characterized in that, The moving component (4) includes a bidirectional linear motor (401) and a material frame (402). The first cylinder (305) is fixedly installed on the outer surface of the bidirectional linear motor (401). The lower end of the second cylinder (308) is fixedly connected to the two sliders of the bidirectional linear motor (401). The material frame (402) is fixedly installed on the inner surface of another support frame (307).

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