Automatic feeding device for photo frame back plate

Abstract

The utility model discloses an automatic feeding device for photo frame back plates. The automatic feeding device comprises a first material supporting guide rail, a second material supporting guide rail, a first circulating chain belt and a second circulating chain belt, a first material pushing block is arranged on the first circulating chain belt, a second material pushing block is arranged on the second circulating chain belt, the first material pushing block is fixed on one chain link of the first circulating chain belt, but the length of the first material pushing block is larger than a chain distance of the first circulating chain belt, and the length of the second material pushing block is larger than a chain distance of the second circulating chain belt. The second material pushing block is fixed to one chain link of the second circulating chain belt, and the length of the second material pushing block is larger than one chain distance of the second circulating chain belt. The front end and the rear end of the material pushing block are extended, but the material pushing block is only arranged on one chain link, so that the material pushing block can smoothly pass through a turning position on a chain belt, and the part extending on the front chain link and the rear chain link which are adjacent plays a role in positioning and preventing the material pushing block from tilting forwards or backwards, so that the position of the material pushing block is stable and does not change, and the feeding precision is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of picture frame processing equipment, and more specifically to an automatic feeding device for picture frame back panels. Background Technology

[0002] In the picture frame production process, the assembly of the back panel is a crucial step. Traditional manual feeding methods suffer from low efficiency, high labor intensity, and a high risk of errors, making them unsuitable for modern production needs.

[0003] Currently, there are some picture frame back panel feeding devices on the market, but most of them have the following shortcomings:

[0004] (1) The pusher block that pushes the back panel of the picture frame forward is installed on a single link. It is easy to lift up, so each feeding cannot reach a fixed standard position, resulting in errors and affecting the subsequent assembly quality.

[0005] (2) Some feeding devices can only adapt to back plates of specific sizes or shapes, making it difficult to meet the production needs of different products. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned defects of the prior art and provide an automatic feeding device for the back panel of a picture frame that is simple in structure, stable in operation, low in cost, highly adaptable, has high feeding accuracy, and a high degree of automation.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic feeding device for a photo frame back panel, comprising a workbench, wherein an automatic feeding mechanism is provided on the workbench, characterized in that the automatic feeding mechanism comprises a pair of parallel and spaced first and second material-supporting guide rails, a first circulating chain belt is provided beside the first material-supporting guide rail, and a second circulating chain belt is provided beside the second material-supporting guide rail; a first pusher block is provided on the first circulating chain belt, and a second pusher block is provided on the second circulating chain belt, the first and second pusher blocks are arranged symmetrically about a center, the first pusher block is fixed on one link of the first circulating chain belt, but the length of the first pusher block is greater than one chain pitch of the first circulating chain belt, that is, the front and rear ends of the first pusher block extend to the two adjacent links of the link in front and behind it respectively, the second pusher block is fixed on one link of the second circulating chain belt, but the length of the second pusher block is greater than one chain pitch of the second circulating chain belt, that is, the front and rear ends of the second pusher block extend to the two adjacent links of the link in front and behind it respectively.

[0008] This invention extends the front and rear ends of the pusher block, but it is still only mounted on one link of the chain, which does not affect its smooth passage through the bends on the chain. When it is in the horizontal position on the chain, which is the position where it performs the pushing action, the part extended on the adjacent front and rear links of the chain plays a positioning role, preventing it from tilting forward or backward, so that its position remains stable and thus improves the feeding accuracy.

[0009] Preferably, the first material guide rail is provided with a first limiting step, and the second material guide rail is provided with a second limiting step. The first limiting step and the second limiting step are arranged symmetrically about the center. The upper edge of the first pusher block is higher than the step surface of the first limiting step, and the upper edge of the second pusher block is higher than the step surface of the second limiting step.

[0010] This invention features a limiting step on the material guide rail, which effectively confines the back panel of the photo frame within it. As the back panel of the photo frame is pushed forward by the pusher block, it will not deviate from its straight forward trajectory.

[0011] Preferably, the first circulating chain belt is provided with a first drive sprocket and a first driven sprocket at its two ends, and the first material support guide rail, the first circulating chain belt, the first drive sprocket and the first driven sprocket are mounted together on a fixed bracket; the second circulating chain belt is provided with a second drive sprocket and a second driven sprocket at its two ends, and the second material support guide rail, the second circulating chain belt, the second drive sprocket and the second driven sprocket are mounted together on a movable bracket, and a pair of second sliders are installed below each of the two ends of the movable bracket along its length, and each pair of second sliders is mounted on a second slide rail, and the two second slide rails are mounted on the worktable.

[0012] This utility model takes into account the different sizes of photo frame back panels. The original design intention of this utility model is to meet the feeding work of photo frame back panels of any size. Therefore, in order to match the different sizes of photo frame back panels, the second material support guide rail and the second circulating chain are designed onto the movable bracket, so that the distance between them and the first material release guide rail and the first circulating chain can be adjusted, thereby meeting the needs of supporting photo frame back panels of different sizes.

[0013] Preferably, a drive shaft runs through the first and second drive sprockets, connecting them in series. A driven pulley is provided at one end of the drive shaft, and the driven pulley is connected to a drive pulley via a transmission belt. The drive pulley is mounted on the motor shaft of a drive motor. The outer surface of the drive shaft is provided with a plurality of strips of equal arc length and spaced apart, all extending along its axial direction. The inner walls of the first and second drive sprockets are each provided with a plurality of grooves that are the same number as the strips on the drive shaft and match each other.

[0014] In order for the second circulating chain to move, the second drive sprocket driving its rotation should also be able to slide. The second drive sprocket needs to be able to slide axially on the drive shaft while also achieving radial transmission. Therefore, the second drive sprocket and drive shaft must be locked radially to prevent transmission slippage. Thus, a strip and groove are preferably designed to satisfy both of these actions. The purpose of designing the first drive sprocket in the same way is twofold: firstly, to reduce the number of parts of different specifications, thus lowering the installation difficulty; and secondly, to lay the groundwork for future implementation of sliding functionality for the first drive sprocket.

[0015] Preferably, the drive shaft is suspended on the worktable by a pair of support plates.

[0016] This invention unlocks the movable bracket, allowing adjustment of the distance between the first and second material guide rails to accommodate photo frame back panels of different widths.

[0017] Preferably, the workbench is provided with a positioning adjustment mechanism, which includes a pair of parallel first slide rails spaced apart. Each first slide rail is provided with a pair of spaced and separated first sliders. A first slide plate is supported on the two pairs of first sliders. The fixed bracket and the movable bracket of the automatic feeding mechanism are both installed on the first slide plate.

[0018] The orientation adjustment mechanism is mainly used to adjust the alignment of the feeding device it carries with the next process (such as the binding support device). The first slide can slide left and right relative to the worktable. Once the alignment is completed, it can be locked to keep it in a stationary state (the locking mechanism can be a long bolt that passes through the first slide and is screwed onto the worktable, etc.).

[0019] Beneficial effects: (1) The present invention extends the front and rear ends of the pusher block, but it is still only installed on one link of the chain, which does not affect its smooth passage through the bend position on the chain belt. When it is in the horizontal position on the chain belt, which is the position where it realizes the pushing action, the part extended on the adjacent front and rear links of the chain belt plays a positioning role, preventing it from tilting forward or backward, so that its position remains stable and does not change, thereby improving the feeding accuracy.

[0020] (2) This utility model takes into account the different sizes of the photo frame back panel. The original design intention of this utility model is to meet the feeding work of photo frame back panels of any size. Therefore, in order to match the different sizes of photo frame back panels, the second material support guide rail and the second circulating chain are designed on the movable bracket so that the distance between them can be adjusted relative to the first material release guide rail and the first circulating chain, thereby meeting the needs of supporting photo frame back panels of different sizes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the orientation adjustment mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the automatic feeding mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the pusher block of this utility model;

[0025] Figure 5 This is a schematic diagram of the drive shaft and drive sprocket of this utility model.

[0026] In the diagram: 1-Workbench, 2-First slide rail, 3-First slider, 4-First slide plate, 5-First material support guide rail, 6-Second material support guide rail, 7-First circulating chain belt, 8-Second circulating chain belt, 9-Fixed bracket, 10-Modible bracket, 11-First limiting step, 12-Second limiting step, 13-First pusher block, 14-Second pusher block, 15-Second slide rail, 16-Second slider, 17-First drive sprocket, 18-First driven sprocket, 19-Second drive sprocket, 20-Second driven sprocket, 21-Drive shaft, 22-Insertion strip, 23-Insertion groove, 24-Driven pulley, 25-Transmission belt, 26-Drive pulley, 27-Drive motor, 28-Support plate. Detailed Implementation

[0027] To make the technical means, creative features and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0028] Example: Figure 1 and Figure 2 As shown, a photo frame back panel feeding device includes a workbench 1. A position adjustment mechanism is provided on the workbench 1. The position adjustment mechanism includes a pair of parallel first slide rails 2. Each first slide rail 2 is provided with a pair of spaced and separated first sliders 3. A first slide plate 4 is supported on the two pairs of first sliders 3. A stop bolt is connected between the first slide plate 4 and the workbench 1.

[0029] like Figure 3 and Figure 4 As shown, an automatic feeding mechanism is provided on the first slide plate 4. The automatic feeding mechanism includes a pair of parallel first material support rails 5 and second material support rails 6. A first circulating chain belt 7 is provided next to the first material support rail 5. A first drive sprocket 17 and a first driven sprocket 18 are respectively provided at the beginning and end of the first circulating chain belt 7. A second circulating chain belt 8 is provided next to the second material support rail 6. A second drive sprocket 19 and a second driven sprocket 20 are respectively provided at the beginning and end of the second circulating chain belt 8.

[0030] The first material guide rail 5, the first circulating chain belt 7, the first drive sprocket 17 and the first driven sprocket 18 are all mounted on a fixed bracket 9. The fixed bracket 9 is mounted on the first slide plate 4. The fixed bracket 9 is arranged perpendicularly to the two first slide rails 2 (the fixed bracket 9 is divided into three independently arranged vertical plates, which can also be connected by reinforcing rods, but the three vertical plates are kept in a straight line, and this straight line is arranged perpendicularly to the two first slide rails 2).

[0031] The second material guide rail 6, the second circulating chain belt 8, the second drive sprocket 19, and the second driven sprocket 20 are all mounted on a movable bracket 10. A pair of second sliders 16 are installed below each of the two ends of the movable bracket 10 along its length. Each pair of second sliders 16 is mounted on a second slide rail 15. The two second slide rails 15 are perpendicular to the two first slide rails 2. The two second slide rails 15 are mounted on the first slide plate 4. A stop bolt connects the movable bracket 10 and the first slide plate 4.

[0032] A drive shaft 21, which connects the first drive sprocket 17 and the second drive sprocket 19, runs through them. The outer surface of the drive shaft 21 is provided with six strips 22 of equal arc length and distance, which are all arranged along its axial direction. The inner wall of the first drive sprocket 17 and the second drive sprocket 19 is provided with six grooves 23 that match the strips 22 on the drive shaft 21 one by one.

[0033] A driven pulley 24 is provided on one end of the drive shaft 21. The driven pulley 24 is connected to a drive pulley 26 via a transmission belt 25. The drive pulley 26 is mounted on the motor shaft of a drive motor 27.

[0034] The drive shaft 21 is suspended on the worktable 1 via a pair of support plates 28.

[0035] A first limiting step 11 is provided on the first material feeding guide rail 5, and a second limiting step 12 is provided on the second material feeding guide rail 6. The first limiting step 11 and the second limiting step 12 are arranged symmetrically around the center. A first pushing block 13 is provided on the first circulating chain belt 7, and the upper edge of the first pushing block 13 is higher than the step surface of the first limiting step 11. A second pushing block 14 is provided on the second circulating chain belt 8, and the upper edge of the second pushing block 14 is higher than the step surface of the second limiting step 12. The first pushing block 13 and the second pushing block 14 are arranged symmetrically around the center.

[0036] The first pusher block 13 is fixed on one link of the first circulating chain 7, but the length of the first pusher block 13 is greater than one chain pitch of the first circulating chain 7. That is, the front and rear ends of the first pusher block 13 extend to the two adjacent links of the link it is located on. The second pusher block 14 is fixed on one link of the second circulating chain 8, but the length of the second pusher block 14 is greater than one chain pitch of the second circulating chain 8. That is, the front and rear ends of the second pusher block 14 extend to the two adjacent links of the link it is located on.

[0037] Usage: To correct the positional relationship between the feeding device and the subsequent process. The first slide can slide left and right relative to the worktable. Once the alignment is completed, it can be locked to keep it stationary. It should not be unlocked unless necessary.

[0038] The gap between the first and second material guide rails is corrected. The movable bracket is unlocked and allowed to slide left and right relative to the first slide plate, so that the back panel of the picture frame to be conveyed can fall perfectly into the first and second limit steps. Then the movable bracket is locked. The size of the back panel of the picture frame remains unchanged. Unlocking is not necessary unless required.

[0039] In the above adjustments, the position of the drive shaft remains unchanged, while the first drive gear and the second drive gear can slide axially relative to the drive shaft. However, due to the presence of the insert and the groove, the rotation of the drive shaft can drive the first drive gear and the second drive gear to rotate.

[0040] After the first frame back panel falls into place, it is stuck between the first and second limiting steps. The drive motor starts and transmits power to the drive shaft through the driven pulley, transmission belt and drive pulley. Then the first drive sprocket, second drive sprocket, first driven sprocket and second driven sprocket drive the first and second circulating chain belts to rotate synchronously in the same direction. Finally, the first pusher block and the second pusher block push the frame back panel forward to the next process position to complete the feeding work, and repeat the movement for the next frame back panel.

Claims

1. A kind of automatic feeding device of photo frame backboard, including a workbench, the workbench is provided with an automatic feeding mechanism, it is characterized in that, The automatic feeding mechanism comprises a pair of first and second spaced parallel material supporting rails, a first circulating chain belt arranged beside the first material supporting rail, and a second circulating chain belt arranged beside the second material supporting rail; A first pushing block is arranged on the first circulating chain belt, and a second pushing block is arranged on the second circulating chain belt, the first and second pushing blocks are arranged in central symmetry, the first pushing block is fixed on one chain link of the first circulating chain belt, but the length of the first pushing block is greater than one chain pitch of the first circulating chain belt, that is, the front and rear ends of the first pushing block extend to the adjacent front and rear chain links, respectively, the second pushing block is fixed on one chain link of the second circulating chain belt, but the length of the second pushing block is greater than one chain pitch of the second circulating chain belt, that is, the front and rear ends of the second pushing block extend to the adjacent front and rear chain links, respectively.

2. The automatic feeding device for photo frame backboard according to claim 1, characterized in that, A first limiting step is arranged on the first material supporting rail, and a second limiting step is arranged on the second material supporting rail, the first and second limiting steps are arranged in central symmetry; The upper edge of the first pushing block is higher than the step surface of the first limiting step, and the upper edge of the second pushing block is higher than the step surface of the second limiting step.

3. The automatic feeder for photo frame backboard according to claim 1, characterized in that, First and second driving sprockets and first and second driven sprockets are arranged at the first and second ends of the first and second circulating chain belts, respectively, the first material supporting rail, the first circulating chain belt, the first driving sprocket and the first driven sprocket are jointly installed on a fixed support, and the second material supporting rail, the second circulating chain belt, the second driving sprocket and the second driven sprocket are jointly installed on a movable support, the movable support is provided with a pair of second sliding blocks below the first and second ends in the length direction, each pair of second sliding blocks is installed on a second sliding rail, and the two second sliding rails are installed on the workbench. A driving shaft is arranged through the first and second driving sprockets, a driven pulley is arranged on one end of the driving shaft, a driving pulley is connected to the driven pulley through a transmission belt, and the driving pulley is installed on the motor shaft of a driving motor.

4. The automatic feeding device for photo frame backboard according to claim 3, characterized in that, A plurality of inlays with equal arc length and spacing are arranged on the outer surface of the driving shaft and extend in the axial direction, and a plurality of inlay grooves are arranged on the inner walls of the first and second driving sprockets, the number of the inlays on the driving shaft is the same as that of the inlay grooves, and the inlays and the inlay grooves are matched one by one. The driving shaft is supported by a pair of support plates above the workbench.

5. The automatic feeder for photo frame backboard according to claim 4, characterized in that, An azimuth adjustment mechanism is arranged on the workbench, the azimuth adjustment mechanism comprises a pair of first sliding rails arranged in parallel with a spacing, a pair of first sliding blocks is arranged on each first sliding rail with a spacing, a first sliding plate is held by the two pairs of first sliding blocks, and the fixed support and the movable support of the automatic feeding mechanism are installed on the first sliding plate.

6. The automatic feeder for photo frame backboard according to claim 1, characterized in that, ​

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