A reflow soldering machine for manufacturing LED digital tubes

Abstract

The utility model discloses a reflow soldering machine for manufacturing LED digital tubes, which belongs to the technical field of reflow soldering machines, and comprises a reflow soldering machine body, a partition is fixed in the middle of the reflow soldering machine body, and soldering drawers are arranged on both upper and lower sides of the partition, and a transmission box is fixed on one side wall of the reflow soldering machine body, and a motor is fixed in the transmission box. The utility model adopts a double-station structure and designs a set of alternating automatic input mechanisms composed of a bidirectional screw, a screw block, a motor, a belt, a driving wheel, a driven wheel and a linkage rod. During the welding process, the driving wheel is driven by the motor, and the driving wheel drives the driven wheel to rotate through the belt. Since the belt is cross-arranged, the driving wheel can be connected to the driven wheel in the direction of rotation, and the bidirectional screw connected thereto rotates in the opposite direction. At the same time, the linkage rod is driven by the screw block to rotate, and the movement of the soldering drawer can be automatically realized, so that two groups of soldering drawers alternately enter the reflow soldering machine for welding, thereby improving the welding efficiency of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of reflow soldering machines, in particular to a reflow soldering machine for manufacturing LED digital tubes. Background Art

[0002] A reflow soldering machine is also called a reflow soldering machine or a "reflow oven". It provides a heating environment to melt the solder paste so that surface mount components and PCB pads can be reliably combined together through the solder paste alloy. With the development of science and technology, energy-saving reflow soldering machines have become an existing published mature technology. In the production process of LED digital tubes, reflow soldering machines are required for soldering.

[0003] Existing reflow soldering machines for manufacturing LED digital tubes mostly adopt a drawer-type structure, that is, the PCB board is placed on the drawer, and then placed in the reflow soldering machine through the drawer for soldering. For example, an energy-saving reflow soldering machine disclosed in Patent No. CN202321680872.8 adopts a drawer-type structure. However, the reflow soldering machine with a drawer-type structure has a disadvantage, that is, it will cause the device to stop working when taking and placing products, and the device cannot continuously solder the PCB board, which affects its welding efficiency and is not conducive to large-scale batch production. Therefore, a reflow soldering machine for manufacturing LED digital tubes is urgently needed to solve the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a reflow soldering machine for manufacturing LED digital tubes.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] A reflow soldering machine for manufacturing LED digital tubes, including a reflow soldering machine body, a partition is fixed in the middle of the reflow soldering machine body, welding drawers are arranged on the upper and lower sides of the partition, a transmission box is fixed on one side wall of the reflow soldering machine body, a motor is fixed in the transmission box, a driving wheel is connected to the output shaft of the motor, a driven wheel is arranged on one side of the driving wheel, belts are nested on the driving wheel and the driven wheel, a bidirectional screw is connected to the driving wheel and the driven wheel, a guide rod is installed on one side of the bidirectional screw, two groups of screw blocks are symmetrically sleeved on the guide rod and the bidirectional screw, and a linkage rod is cross-arranged between the screw block and the welding drawer.

[0007] Preferably, the partition is welded in the reflow soldering machine body, and the welding drawer is slidably connected to the reflow soldering machine body.

[0008] Preferably, the transmission box is mounted on a side wall of the reflow soldering machine body by bolts, the output shaft of the motor is fixedly connected to the driving wheel, the belts are nested on the driving wheel and the driven wheel, and the belts are cross-arranged.

[0009] Preferably, there are two groups of bidirectional screws and they are distributed on the upper and lower sides of the partition, one end of the bidirectional screw is fixedly connected to the driving wheel and the driven wheel, the bidirectional screw is rotatably connected to the inner wall of the reflow soldering machine body, the guide rod is welded in the reflow soldering machine body, the screw block is symmetrically screwed on the bidirectional screw through threads, the guide rod passes through the screw block, and the linkage rod is hinged to the screw block and the back wall of the welding drawer.

[0010] Preferably, guide blocks of a T-shaped structure are formed on both side walls of the welding drawer, and guide grooves of a T-shaped structure matching the guide blocks are formed on the inner wall of the reflow soldering machine body.

[0011] Preferably, two groups of heating plates are symmetrically fixed on one side wall of the reflow soldering machine body, and the heating plates are distributed on both sides of the partition.

[0012] Preferably, an operation panel is installed on the upper end of the reflow soldering machine body.

[0013] Beneficial technical effects of the utility model:

[0014] The utility model adopts a double-station structure and designs an alternating automatic input mechanism consisting of a bidirectional screw, a screw block, a motor, a belt, a driving wheel, a driven wheel and a linkage rod. During the welding process, the motor drives the driving wheel, and the driving wheel drives the driven wheel to rotate through the belt. Since the belts are cross-arranged, the rotation directions of the driving wheel and the driven wheel can be connected, so that the rotation directions of the bidirectional screws connected thereto are opposite. At the same time, the linkage rod is driven to rotate by the screw block, which can automatically realize the movement of the welding drawer, so that the two groups of welding drawers alternately enter the reflow soldering machine for welding, thereby improving the welding efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a preferred embodiment of a reflow soldering machine for manufacturing LED digital tubes according to the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the back of the reflow soldering machine body in a preferred embodiment of a reflow soldering machine for manufacturing LED digital tubes according to the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of a transmission box in a preferred embodiment of a reflow soldering machine for manufacturing LED digital tubes according to the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of a reflow soldering machine body in a preferred embodiment of a reflow soldering machine for manufacturing LED digital tubes according to the utility model;

[0019] Figure 5 The utility model is a schematic structural diagram of the connection relationship between a screw block, a linkage rod and a welding drawer in a preferred embodiment of a reflow soldering machine for manufacturing LED digital tubes.

[0020] The following are the descriptions of the reference numerals:

[0021] 1. Reflow soldering machine body; 2. Operation panel; 3. Soldering drawer; 4. Partition; 5. Transmission box; 6. Screw block; 7. Guide rod; 8. Linkage rod; 9. Bidirectional screw; 10. Motor; 11. Driving wheel; 12. Belt; 13. Driven wheel; 14. Heating plate; 15. Guide groove; 16. Guide block. DETAILED DESCRIPTION

[0022] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0023] like Figure 1-Figure 5 As shown, a reflow soldering machine for manufacturing LED digital tubes provided in this embodiment includes a reflow soldering machine body 1, a partition 4 is fixed in the middle of the reflow soldering machine body 1, and welding drawers 3 are arranged on the upper and lower sides of the partition 4, a transmission box 5 is fixed on one side wall of the reflow soldering machine body 1, and a motor 10 is fixed in the transmission box 5, a driving wheel 11 is connected to the output shaft of the motor 10, a driven wheel 13 is arranged on one side of the driving wheel 11, belts 12 are nested on the driving wheel 11 and the driven wheel 13, a bidirectional screw 9 is connected to the driving wheel 11 and the driven wheel 13, a guide rod 7 is installed on one side of the bidirectional screw 9, two groups of screw blocks 6 are symmetrically sleeved on the guide rod 7 and the bidirectional screw 9, and a linkage rod 8 is cross-arranged between the screw block 6 and the welding drawer 3.

[0024] The partition 4 is welded in the reflow soldering machine body 1, and the welding drawer 3 is slidably connected with the reflow soldering machine body 1. The partition 4 divides the reflow soldering machine body 1 into two groups of welding cavities, and the welding drawer 3 provides a placement position for the PCB board of the LED digital tube.

[0025] The transmission box 5 is installed on a side wall of the reflow soldering machine body 1 by bolts, the output shaft of the motor 10 is fixedly connected to the driving wheel 11, the belts 12 are nested on the driving wheel 11 and the driven wheel 13, the belts 12 are cross-arranged, the motor 10 drives the driving wheel 11 to rotate, and the driving wheel 11 drives the driven wheel 13 to rotate through the belts 12. Since the belts 12 are cross-arranged, the rotation directions of the driving wheel 11 and the driven wheel 13 are opposite.

[0026] There are two groups of bidirectional screws 9 and they are distributed on the upper and lower sides of the partition 4. One end of the bidirectional screw 9 is fixedly connected to the driving wheel 11 and the driven wheel 13. The bidirectional screw 9 is rotatably connected to the inner wall of the reflow soldering machine body 1. The guide rod 7 is welded in the reflow soldering machine body 1. The screw block 6 is symmetrically screwed on the bidirectional screw 9 through threads. The guide rod 7 runs through the screw block 6. The linkage rod 8 is hinged to the screw block 6 and the back wall of the welding drawer 3. The driving wheel 11 and the driven wheel 13 drive the bidirectional screw 9 to rotate, so that the screw block 6 moves under the action of the threads and the guide rod 7. During the movement, the linkage rod 8 rotates to realize the movement of the welding drawer 3.

[0027] T-shaped guide blocks 16 are formed on both side walls of the welding drawer 3, and T-shaped guide grooves 15 matching the guide blocks 16 are formed on the inner wall of the reflow soldering machine body 1. The combination of the guide blocks 16 and the guide grooves 15 can ensure the stability of the welding drawer 3 when it moves.

[0028] Two sets of heating plates 14 are symmetrically fixed on one side wall of the reflow soldering machine body 1. The heating plates 14 are distributed on both sides of the partition 4. The heating plates 14 can heat the space where the soldering drawer 3 is located, thereby melting the solder paste on the PCB board to achieve product soldering.

[0029] An operation panel 2 is installed on the upper end of the reflow soldering machine body 1, and the operation panel 2 controls the operation of the device.

[0030] The working principle of the device is as follows: in the initial state, one group of soldering drawers 3 is located outside, and the other group of soldering drawers 3 is located inside the reflow soldering machine body 1. The PCB board of the LED digital tube is placed on the soldering drawer 3 outside, and then the motor 10 is controlled to work. The motor 10 drives the driving wheel 11 to rotate, and the driving wheel 11 drives the driven wheel 13 to rotate through the belt 12. Since the belt 12 is arranged crosswise, the driving wheel 11 and the driven wheel 13 rotate in opposite directions. Then the driving wheel 11 and the driven wheel 13 respectively drive the bidirectional screw 9 connected thereto to rotate, so that the screw block 6 is in the thread. And move under the action of the guide rod 7. During the movement, the linkage rod 8 rotates to realize the movement of the welding drawer 3. Since the rotation directions of the two sets of bidirectional screws 9 are opposite, the welding drawer 3 located on the outside can be moved into the reflow soldering machine body 1, and the welding drawer 3 located inside it is moved out to place the PCB board, and then the corresponding heating plate 14 is controlled to work. The heating plate 14 heats the space where the welding drawer 3 is located, and then the solder paste on the PCB board is melted to realize the welding of the product, and then the above operation is repeated, which can enable the device to continue welding and effectively improve the welding efficiency of the device.

[0031] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A reflow soldering machine for manufacturing LED digital tubes, characterized in that: The invention comprises a reflow soldering machine body (1), a partition (4) is fixed in the middle of the reflow soldering machine body (1), welding drawers (3) are arranged on the upper and lower sides of the partition (4), a transmission box (5) is fixed on one side wall of the reflow soldering machine body (1), a motor (10) is fixed in the transmission box (5), a driving wheel (11) is connected to the output shaft of the motor (10), a driven wheel (13) is arranged on one side of the driving wheel (11), a belt (12) is embedded on the driving wheel (11) and the driven wheel (13), a bidirectional screw rod (9) is connected to the driving wheel (11) and the driven wheel (13), a guide rod (7) is installed on one side of the bidirectional screw rod (9), two groups of screw blocks (6) are symmetrically sleeved on the guide rod (7) and the bidirectional screw rod (9), and a linkage rod (8) is cross-arranged between the screw block (6) and the welding drawer (3).

2. A reflow soldering machine for manufacturing LED digital tubes according to claim 1, characterized in that: The partition (4) is welded inside the reflow soldering machine body (1), and the welding drawer (3) is slidably connected to the reflow soldering machine body (1).

3. A reflow soldering machine for manufacturing LED digital tubes according to claim 2, characterized in that: The transmission box (5) is mounted on a side wall of the reflow soldering machine body (1) by means of bolts, the output shaft of the motor (10) is fixedly connected to the driving wheel (11), the belts (12) are both embedded in the driving wheel (11) and the driven wheel (13), and the belts (12) are arranged crosswise.

4. A reflow soldering machine for manufacturing LED digital tubes according to claim 3, characterized in that: The bidirectional screw rods (9) have two groups and are distributed on the upper and lower sides of the partition (4); one end of the bidirectional screw rods (9) is fixedly connected to the driving wheel (11) and the driven wheel (13); the bidirectional screw rods (9) are rotatably connected to the inner wall of the reflow soldering machine body (1); the guide rod (7) is welded inside the reflow soldering machine body (1); the screw block (6) is symmetrically screwed to the bidirectional screw rods (9) through threads; the guide rod (7) passes through the screw block (6); and the linkage rod (8) is hinged to the screw block (6) and the back wall of the welding drawer (3).

5. A reflow soldering machine for manufacturing LED digital tubes according to claim 4, characterized in that: Guide blocks (16) of a T-shaped structure are formed on both side walls of the welding drawer (3), and guide grooves (15) of a T-shaped structure matching the guide blocks (16) are formed on the inner wall of the reflow soldering machine body (1).

6. A reflow soldering machine for manufacturing LED digital tubes according to claim 5, characterized in that: Two groups of heating plates (14) are symmetrically fixed on one side wall of the reflow soldering machine body (1), and the heating plates (14) are distributed on both sides of the partition (4).

7. A reflow soldering machine for manufacturing LED digital tubes according to claim 6, characterized in that: An operation panel (2) is installed on the upper end of the reflow soldering machine body (1).

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