A device for cutting off the surplus plastic of TO-263 plastic package surface mount device

Abstract

The application provides a TO-263 plastic package surface mount device post-cutting device for pipe installation, which comprises a material guiding plate, an inclination adjusting plate and a supporting plate which are sequentially stacked and fixed on a punching die bottom plate; the top of the material guiding plate is provided with a material guiding groove, the top of the inclination adjusting plate is provided with a supporting inclined surface, and the top of the supporting plate is provided with a limiting groove; the center lines of the material guiding groove, the supporting inclined surface and the limiting groove are on the same plane, and the center line of the material guiding groove is on the same plane with the center line of a die material guiding groove on the punching die bottom plate. The limiting groove for collecting the material pipe and the inclination adjusting plate are arranged, so that the die for different products can be quickly positioned, and the production speed, process quality control and other problems in the process are significantly improved.

Description

Technical Field

[0001] This invention relates to a tube-mounting device for TO-263 plastic-sealed surface-mount components after the reinforcing bars have been cut. Background Technology

[0002] In the production process of packaged surface mount components, a lead cutting machine is used in conjunction with multiple product punching dies for processing. However, due to the inconsistent shapes of the packaged surface mount components produced, the product dies need to be changed frequently, making it impossible to install and design a fixed product feeding device on the lead cutting machine body.

[0003] Furthermore, the current TO-263 punching equipment generally employs manual punching technology for product rib cutting. The main process involves first using die A to remove the frame reinforcing ribs of the product, and then using die B to separate the pin positions of individual products, such as... Figure 5 As shown, in the final step of the product collection tube advancement process, the operator holds the tube to align it with the outlet. The precision of this step must be less than 0.3mm to push a single product into the collection tube in a row. In actual production, the operator often needs to fine-tune the Y, Z, and X directions and tilt angle of the tube several times to meet the requirements. This causes physical fatigue due to the high concentration required, resulting in the limiting strip inside the tube that fixes the product pins failing to align with the mold outlet, causing products to fall and slowing down processing. This significantly impacts product quality and delivery schedule. For example, CN104465456B discloses a dual in-line package (DIP) electronic device transfer surface mount packaging device. The device pushes punched and formed electronic devices into surface mount sealed packages via an air-blowing track. Under the blowing action of air holes in the air-blowing track, the processed surface mount packaged electronic devices are inserted into the tube. The installation position of the air-blowing track is fixed and cannot be adjusted, requiring the preparation of various specifications of air-blowing tracks to accommodate surface mount chips of different shapes. Summary of the Invention

[0004] To solve the aforementioned technical problems, this invention achieves a perfect integration of a newly designed high-precision limiting block with the original material tube and punching die. This solves the problem of multi-pin plastic-encapsulated surface-mount devices being difficult to push into the product collection tube equipped with a positioning slot (error 0.2mm). By adjusting the fit accuracy of these three components with the material channel opening of the main rebar cutting machine in one go, the need to manually align the collection tube with the die outlet position for each die cycle can be permanently eliminated, thereby increasing production efficiency by more than 70%.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a tube mounting device for TO-263 plastic-sealed surface mount components after rib cutting, comprising a guide plate, an angle adjustment plate, and a support plate stacked and fixed on the base plate of a punching die in sequence; the top of the guide plate is machined with a guide groove, the top of the angle adjustment plate is machined with a support slope, and the top of the support plate is machined with a limit groove; the center lines of the guide groove, the support slope, and the limit groove are on the same plane, and the center line of the guide groove is on the same plane as the center line of the die guide groove on the base plate of the punching die.

[0007] The top of the guide channel is located between the top and bottom of the mold guide channel.

[0008] The depth of the guide groove is the same as the depth of the mold guide groove.

[0009] The limiting groove is a square groove with the same width as the collecting pipe, and both ends of the limiting groove are chamfered.

[0010] The collecting tube is a hollow square tube with a receiving groove machined at the top and a limiting strip machined at the bottom. The receiving groove is located above the center of the limiting strip, and both the receiving groove and the limiting strip are along the center line of the collecting tube.

[0011] The inclined angle of the support slope is 45°, and the highest edge of the support slope is adjacent to the guide plate and has a limiting boss machined on it.

[0012] The height of the limiting boss is the same as the wall thickness of the collecting pipe.

[0013] The support plate has transverse strip holes machined on its end face, and the inclined adjustment plate has mounting holes for fixing plates machined on its upper end. Bolts pass through the transverse strip holes and engage with the mounting holes for fixing plates to fix the support plate to the inclined adjustment plate.

[0014] The slope adjustment plate has vertical strip holes machined on both sides of its lower end, and the guide plate has two guide plate mounting holes on both sides of its lower end, corresponding to the vertical strip holes. Bolts pass through the vertical strip holes and cooperate with the guide plate mounting holes to fix the slope adjustment plate on the guide plate.

[0015] The upper end of the guide plate is machined with a slanted plate mounting hole. The slanted plate mounting hole is countersunk. The bolt passes through the slanted plate mounting hole and engages with the threaded hole on the bottom plate of the punching die to fix the guide plate to the bottom plate of the punching die.

[0016] The beneficial effects of this invention are as follows: by setting the limiting groove and tilt adjustment plate of the collecting pipe, the collecting pipe can be quickly positioned when changing molds for different products, which significantly improves the production speed and process quality control of this process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the support plate structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the slope adjustment plate structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the guide plate structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the existing collection device structure;

[0022] In the diagram: 1-Unloading device, 11-Support plate, 111-Horizontal strip hole, 112-Limiting groove, 113-Chamfer, 12-Inclination adjustment plate, 121-Vertical strip hole, 122-Fixing plate mounting hole, 123-Supporting inclined surface, 124-Limiting boss, 13-Guide plate, 131-Guide groove, 132-Inclination plate mounting hole, 133-Guide plate mounting hole, 2-Collecting pipe, 21-Collecting groove, 22-Limiting strip, 3-Punching die base plate, 31-Die guide groove, 4-Surface mount chip, 5-Fixing bolt. Detailed Implementation

[0023] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0024] A tube-loading device for TO-263 plastic-sealed surface mount components after rib cutting includes a guide plate 13, an angle adjustment plate 12, and a support plate 11 stacked and fixed on a punching die base plate 3. The top of the guide plate 13 is machined with a guide groove 131, the top of the angle adjustment plate 12 is machined with a support slope 123, and the top of the support plate 11 is machined with a limit groove 112. The center lines of the guide groove 131, the support slope 123, and the limit groove 112 are on the same plane, and the center line of the guide groove 131 is on the same plane as the center line of the die guide groove 31 on the punching die base plate 3.

[0025] The top of the guide channel 131 is located between the top and bottom of the mold guide channel 31.

[0026] The depth of the guide groove 131 is the same as the depth of the mold guide groove 31.

[0027] The limiting groove 112 is a square groove with the same width as the collecting pipe 2, and both ends of the limiting groove 112 are chamfered 113.

[0028] The collecting pipe 2 is a hollow square tube. The top of the collecting pipe 2 is machined with a receiving groove 21 and the bottom is machined with a limiting strip 22. The receiving groove 21 is above the center of the limiting strip 22. Both the receiving groove 21 and the limiting strip 22 are along the center line of the collecting pipe 2.

[0029] The inclined angle of the support slope 123 is 45°, and the highest edge of the support slope 123 is adjacent to the guide plate 13 and is machined with a limiting boss 124.

[0030] The height of the limiting boss 124 is the same as the wall thickness of the collecting pipe 2.

[0031] The support plate 11 has a transverse strip hole 111 machined on its end face, and the slope adjustment plate 12 has a fixing plate mounting hole 122 machined on its upper end. The bolt passes through the transverse strip hole 111 and engages with the fixing plate mounting hole 122 to fix the support plate 11 on the slope adjustment plate 12.

[0032] The slope adjustment plate 12 has vertical strip holes 121 machined on both sides of its lower end, and the guide plate 13 has two guide plate mounting holes 133 machined on both sides of its lower end, which are located at positions corresponding to the vertical strip holes 121. Bolts pass through the vertical strip holes 121 and cooperate with the guide plate mounting holes 133 to fix the slope adjustment plate 12 onto the guide plate 13.

[0033] The upper end of the guide plate 13 is machined with a slanted plate mounting hole 132. The slanted plate mounting hole 132 is a countersunk hole. The bolt passes through the slanted plate mounting hole 132 and engages with the threaded hole on the punching die base plate 3 to fix the guide plate 13 on the punching die base plate 3.

[0034] The product guide block 13 is connected to the punching die outlet and has a groove of the same size as the product 4 in the die cavity at its upper end. Then, the guide plate 3 is connected to the material tube in the Z direction through the inclined adjustment plate 12. The support plate 11 can adjust and fix the guide height of the material tube through the vertical recessed square groove on its side. It can also meet the requirements of the product falling naturally due to gravity by fitting the material tube with the 45° inclined surface set at the upper end of the inclined adjustment plate 12. At the end of the inclined surface, there is an X-position limiting boss 124 with the same wall thickness as the material tube. The height of the limiting boss 124 can be adjusted by the vertical strip groove to be in plane with the guide groove of the guide plate. Finally, the horizontal square groove of the support plate 11 with Y-direction limiting is used to adjust and fix the horizontal position of the material tube and the chip 4 in the die. The upper two ends are provided with limiting chamfers higher than the height of the material tube, and the bottom of the limiting groove 112 is set at a 45° angle to the inclined adjustment plate 12. After the chip 4 is stamped and formed, the operator puts the collection tube into the pre-set feeding and positioning device. It will automatically complete the X / Y / Z and tilt angle fitting dimensions. At this time, the production line only needs to push forward slightly from the rear of the row of products. The workpiece will smoothly pass through the guide plate and the transition tilt adjustment plate 12 to the collection tube for collection.

Claims

1. A tube-loading device for TO-263 plastic-sealed surface mount components after trimming, comprising a guide plate (13), an angle adjustment plate (12), and a support plate (11) stacked and fixed sequentially on a punching die base plate (3), characterized in that: The top of the guide plate (13) is machined with a guide groove (131), the top of the slope adjustment plate (12) is machined with a support slope (123), and the top of the support plate (11) is machined with a limit groove (112). The center lines of the guide groove (131), the support slope (123), and the limit groove (112) are on the same plane. The center line of the guide groove (131) is on the same plane as the center line of the mold guide groove (31) on the bottom plate (3) of the punching die. The support plate (11) has a transverse strip hole (111) on its end face, and the slope adjustment plate (12) has a fixing plate mounting hole (122) on its upper end. The bolt passes through the transverse strip hole (111) and engages with the fixing plate mounting hole (122) to fix the support plate (11) on the slope adjustment plate (12). The slope adjustment plate (12) has vertical strip holes (121) on both sides of its lower end. The guide plate (13) has two guide plate mounting holes (133) on both sides of its lower end, which are located in positions corresponding to the vertical strip holes (121). The bolts pass through the vertical strip holes (121) and cooperate with the guide plate mounting holes (133) to fix the slope adjustment plate (12) on the guide plate (13).

2. The tube mounting device after cutting the reinforcing bars of the TO-263 plastic-sealed surface mount component as described in claim 1, characterized in that: The top of the guide groove (131) is located between the top and bottom of the mold guide groove (31).

3. The tube mounting device after cutting the reinforcing bars of the TO-263 plastic-sealed surface mount component as described in claim 2, characterized in that: The depth of the guide groove (131) is the same as the depth of the mold guide groove (31).

4. The tube mounting device after cutting the reinforcing bars of the TO-263 plastic-sealed surface mount component as described in claim 1, characterized in that: The limiting groove (112) is a square groove with the same width as the collecting pipe (2), and the openings at both ends of the limiting groove (112) are chamfered (113).

5. The tube mounting device after cutting the reinforcing bars of the TO-263 plastic-sealed surface mount component as described in claim 4, characterized in that: The collecting pipe (2) is a hollow square tube. The top of the collecting pipe (2) is processed with a receiving groove (21) and the bottom is processed with a limiting strip (22). The receiving groove (21) is above the center of the limiting strip (22). The receiving groove (21) and the limiting strip (22) are both set along the center line of the collecting pipe (2).

6. The tube mounting device after cutting the reinforcing bars of the TO-263 plastic-sealed surface mount component as described in claim 1, characterized in that: The inclined angle of the support slope (123) is 45°, and the highest edge of the support slope (123) is adjacent to the guide plate (13) and a limiting boss (124) is machined thereon.

7. The tube mounting device after cutting the reinforcing bars of the TO-263 plastic-sealed surface mount component as described in claim 6, characterized in that: The height of the limiting boss (124) is the same as the wall thickness of the collecting pipe (2).

8. The tube mounting device after cutting the reinforcing bars of the TO-263 plastic-sealed surface mount component as described in claim 1, characterized in that: The guide plate (13) has a slanted plate mounting hole (132) at its upper end. The slanted plate mounting hole (132) is a countersunk hole. The bolt passes through the slanted plate mounting hole (132) and engages with the threaded hole on the bottom plate (3) of the punching die to fix the guide plate (13) on the bottom plate (3).

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