A curved solder paste printing machine

Abstract

The utility model provides an arc solder paste printer, including a frame and a translation mechanism arranged on the upper side of the frame, a rotating device is arranged on the translation mechanism, a front scraper and a rear scraper are arranged on the lower side of the rotating device, a row of upper blocking blocks are laid flat on the upper side of the translation mechanism, arc blocking blocks are arranged on both sides of the lower side of the translation mechanism near the blocking blocks, and the rotating device is movably installed on the translation mechanism along the vertical direction. The utility model has the following beneficial effects: the front scraper or the rear scraper can be lifted in a horizontal linear motion by cooperating with the translation mechanism provided with the upper blocking blocks and the arc blocking blocks and the front scraper or the rear scraper fixed on the rotating device, and the rotating device only needs to rotate an angle to realize the switching between the front scraper and the rear scraper, which solves the technical problem of low working efficiency of the existing solder paste printer and further improves the working efficiency of the solder paste printer.

Description

Technical Field

[0001] The utility model relates to the technical field of solder paste printers, in particular to an arc-shaped solder paste printer. Background Art

[0002] Modern solder paste printers are generally composed of mechanisms such as plate loading, solder paste adding, stamping, and circuit board feeding. Its working principle is: first fix the circuit board to be printed on the printing positioning table, and then the two scrapers of the printer print the solder paste through the steel mesh to the corresponding pads, and evenly print the solder paste on the circuit board.

[0003] The scraper workflow for solder paste printing is to first move to a position close to where printing is required, then the first scraper descends so that the scraper contacts the steel mesh, then the scraper moves horizontally to the other side, and then the scraper rises; then the second scraper descends to contact the steel mesh, then moves back horizontally, and finally the scraper rises.

[0004] The above-mentioned scraper working steps are relatively complicated, in which the scraper rising and falling process does not belong to the working device, that is, the scraper switching device is relatively time-consuming, which leads to a decrease in the working efficiency of the solder paste printer. Utility Model Content

[0005] In view of the deficiencies existing in the prior art, the utility model provides a curved solder paste printer, which solves the technical problem of low working efficiency existing in the prior solder paste printer.

[0006] According to an embodiment of the utility model, an arc-shaped solder paste printer is described, comprising a frame and a translation mechanism arranged on the upper side of the frame, a rotating device is provided on the translation mechanism, a front scraper and a rear scraper are provided on the lower side of the rotating device, a row of upper blocking blocks are laid flat on the upper side of the translation mechanism, arc-shaped blocking blocks are provided on both sides of the lower side of the translation mechanism near the blocking blocks, and the rotating device is movably mounted on the translation mechanism along the vertical direction.

[0007] The technical principle of the utility model is: because the rotating device can move in the vertical direction on the translation mechanism, when the rotating device contacts the upper blocking block, it is pressed at the lowest point of the vertical moving range. At this time, the front scraper or the rear scraper is performing normal solder paste scraping work, and when it contacts the arc-shaped blocking block, the rotating device will be pushed upward due to the arc shape, thereby causing the front scraper or the rear scraper to separate from the surface of the steel mesh. At this time, the rotating device works, and the positions of the front scraper and the rear scraper are switched by rotation to achieve tool change.

[0008] Compared with the prior art, the utility model has the following beneficial effects: by providing a translation mechanism with an upper blocking block and an arc-shaped blocking block in cooperation with a front scraper or a rear scraper fixed on a rotating device, the front scraper or the rear scraper can be lifted in a horizontal linear motion, and the rotating device only needs to rotate an angle to achieve the switching between the front scraper and the rear scraper, which solves the technical problem of low working efficiency of the existing solder paste printer and further improves the working efficiency of the solder paste printer.

[0009] Furthermore, the translation mechanism includes two electric slide rails symmetrically arranged on the frame and a connecting block arranged on the electric slide rails, and the connecting block is movably connected to the rotating device.

[0010] Furthermore, the rotating device includes a support frame and a rotating mechanism arranged on the support frame, the support frame is provided with a movable shaft, two ends of the movable shaft are respectively inserted into two connecting blocks, the rotating mechanism transmits and connects the front scraper and the rear scraper, and the front scraper and the rear scraper are movably installed on the support frame.

[0011] Furthermore, the connecting block is provided with a vertically arranged oblong hole, and the movable shaft is clamped in the oblong hole.

[0012] Furthermore, the bottom surface of the upper blocking block is lower than the top surface of the oblong hole, the upper blocking block supports the upper side of the movable shaft, the lowest arc point of the arc blocking block is flush with the bottom of the oblong hole, and the arc blocking block supports the lower side of the movable shaft.

[0013] Furthermore, the front scraper and the rear scraper are provided with a common rotating shaft, the front scraper and the rear scraper are arranged to be inclined relative to each other, and the rotating shaft is movably mounted on a supporting frame and is transmission-connected to a rotating mechanism.

[0014] Furthermore, the rotating mechanism includes a rotating motor and an output shaft connected to the rotating motor, the rotating motor is mounted on a support frame, the output shaft is movably mounted on the support frame and is parallel to the rotating shaft, and the output shaft is transmission-connected to the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of the curved solder paste printer according to an embodiment of the utility model.

[0016] Figure 2 The figure is a schematic side view of the structure of the curved solder paste printer according to an embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of the main structure of the rotating device of an embodiment of the utility model.

[0018] Figure 4 for Figure 2 A partial enlarged view of part A.

[0019] In the above drawings: 100, frame; 110, upper blocking block; 120, arc-shaped blocking block; 200, translation mechanism; 210, electric slide rail; 220, connecting block; 221, oblong hole; 300, rotating device; 310, supporting frame; 311, movable shaft; 312, rotating shaft; 320, rotating mechanism; 321, rotating motor; 322, output shaft; 330, front scraper; 340, rear scraper. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1 The arc solder paste printer shown includes a frame 100 and a translation mechanism 200 arranged on the upper side of the frame 100, a rotating device 300 is provided on the translation mechanism 200, and a front scraper 330 and a rear scraper 340 are provided on the lower side of the rotating device 300, a row of upper blocking blocks 110 are laid flat on the upper side of the translation mechanism 200, which are used to block the rotating device 300 from moving upward, arc-shaped blocking blocks 120 are provided near the blocking blocks on both sides of the lower side of the translation mechanism 200, which are used to guide the rotating device to move upward, and the rotating device 300 is movably installed on the translation mechanism 200 in the vertical direction, so that when it is at the upper blocking block 110, it is ensured that the rotating device 300 is at the lowest point, and after entering the arc-shaped blocking block 120, it can move upward, thereby realizing the vertical movement of the rotating device 300.

[0022] like Figure 2-4 As shown, the translation mechanism 200 includes two electric slide rails 210 symmetrically arranged on the frame 100 and a connecting block 220 arranged on the slider of the electric slide rail 210. The specific rotating device 300 includes a support frame 310 and a rotating mechanism 320 arranged on the support frame 310. A movable shaft 311 is welded and fixed on the support frame 310, wherein a vertically arranged oblong hole 221 is provided on the connecting block 220, i.e., a movable space for the movable shaft 311 along the vertical direction is formed, and the movable shaft 311 is stuck in the oblong hole 221, so that the movable shaft 311 can move along the direction of the oblong hole 221.

[0023] like Figure 4 As shown, the horizontal height of the bottom surface of the upper blocking block 110 is lower than the horizontal height of the top surface of the oblong hole 221. The upper blocking block 110 supports the upper side of the movable shaft 311 to ensure normal solder paste scraping. The lowest point of the arc blocking block 120 is flush with the bottom of the oblong hole 221. The arc blocking block 120 supports the lower side of the movable shaft 311 to guide the movable shaft 311 to move upward.

[0024] like Figure 2-3As shown, the rotating mechanism 320 is connected to the front scraper 330 and the rear scraper 340, and the front scraper 330 and the rear scraper 340 are movably mounted on the support frame 310, wherein the front scraper 330 and the rear scraper 340 are provided with a common rotating shaft 312, and the front scraper 330 and the rear scraper 340 are arranged to be inclined to each other, and the rotating shaft 312 is installed on the support frame 310 by a bearing and is connected to the rotating mechanism 320, so that the positions of the front scraper 330 and the rear scraper 340 can be changed by rotation.

[0025] The specific rotating mechanism 320 includes a rotating motor 321 and an output shaft 322 connected to the rotating motor 321. The rotating motor 321 is screwed on the support frame 310. The output shaft 322 is installed on the support frame 310 using a bearing and is parallel to the rotating shaft 312. The output shaft 322 and the rotating shaft 312 are connected by a synchronous belt drive.

[0026] During operation, the translation mechanism 200 drives the rotating device 300 to move horizontally to one side. The rotating device 300 follows the arc-shaped blocking block 120 and descends in an arc due to its own weight until the rotating device 300 is pressed under the upper blocking block 110. At this time, the front scraper 330 presses the steel mesh of the arc-shaped solder paste printer, and the translation mechanism 200 continues to drive the rotating device 300 to move horizontally to complete the first solder paste scraping work.

[0027] When the rotating device 300 contacts the arc-shaped blocking block 120 on the other side, the arc following the arc-shaped blocking block 120 rises, causing the front scraper 330 to detach from the steel mesh. At this time, the translation mechanism 200 stops working, and then the rotating device 300 drives the front scraper 330 and the rear scraper 340 to rotate, causing the rear scraper 340 to move downward.

[0028] Then reverse the above steps to complete the second solder paste scraping.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A curved solder paste printer, characterized in that: It includes a frame and a translation mechanism arranged on the upper side of the frame, a rotating device is provided on the translation mechanism, a front scraper and a rear scraper are provided on the lower side of the rotating device, a row of upper blocking blocks are laid flat on the upper side of the translation mechanism, arc-shaped blocking blocks are provided on both sides of the lower side of the translation mechanism near the blocking blocks, and the rotating device is movably installed on the translation mechanism along the vertical direction.

2. The arc solder paste printer according to claim 1, characterized in that: The translation mechanism comprises two electric slide rails symmetrically arranged on the frame and a connecting block arranged on the electric slide rails, and the connecting block is movably connected to the rotating device.

3. The arc solder paste printer according to claim 2, characterized in that: The rotating device includes a support frame and a rotating mechanism arranged on the support frame, the support frame is provided with a movable shaft, two ends of the movable shaft are respectively clamped in two connecting blocks, the rotating mechanism is transmission-connected to the front scraper and the rear scraper, and the front scraper and the rear scraper are movably installed on the support frame.

4. The arc solder paste printer according to claim 3, characterized in that: The connecting block is provided with a vertically arranged oblong hole, and the movable shaft is clamped in the oblong hole.

5. The arc solder paste printer according to claim 4, characterized in that: The bottom surface of the upper blocking block is lower than the top surface of the oblong hole, and the upper blocking block supports the upper side of the movable shaft. The lowest arc point of the arc blocking block is flush with the bottom of the oblong hole, and the arc blocking block supports the lower side of the movable shaft.

6. The arc solder paste printer according to claim 3, characterized in that: The front scraper and the rear scraper are provided with a common rotating shaft, the front scraper and the rear scraper are arranged to be inclined relative to each other, and the rotating shaft is movably mounted on a supporting frame and is transmission-connected to a rotating mechanism.

7. The arc solder paste printer according to claim 6, characterized in that: The rotating mechanism includes a rotating motor and an output shaft connected to the rotating motor. The rotating motor is installed on a support frame. The output shaft is movably installed on the support frame and is parallel to the rotating shaft. The output shaft is transmission-connected to the rotating shaft.

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