A feeding mechanism for a chip placement machine

Abstract

The utility model discloses a feeding mechanism of a placement machine, including a conveyor frame arranged on one side of a machine body, longitudinal slide rails are arranged at positions near both sides of the conveyor frame, two sets of slide rails are respectively slidably connected with two sliders, longitudinal screw nuts are fixedly installed on the sliders, and two sets of screw nuts located on both sides above the conveyor frame are respectively threadedly connected with positive and negative screw rods. The utility model drives two conveying devices to approach or move away from each other along the slide rails through positive and negative screw rods and sliders, so as to adjust the width distance between the two conveying devices, so as to adapt to circuit boards of different widths. By loosening the handle bolts on the ball bearing seat, the positive and negative screw rods and the two conveying devices can be synchronously moved forward and backward to adapt to the conveying position of the circuit board, and the position can be fixed by tightening the handle bolts. The width and position of the entire mechanism are simple to adjust, and the locking and fixing are convenient, which saves time and effort, and greatly reduces the impact on production capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices for chip mounters, in particular to a feeding mechanism for chip mounters. Background Art

[0002] The feeding mechanism of the SMT machine is responsible for transporting the circuit board from one side of the SMT machine to the inside of the SMT machine for SMT processing. It is usually composed of conveying devices, sensors, control systems and other devices. It can accurately feed the circuit board into the SMT machine, facilitating the SMT processing operation.

[0003] The existing SMT feeding mechanism is set on one side of the SMT machine. The circuit board is transported by a conveying device that is fixedly installed horizontally on one side of the conveying work surface and is symmetrical in front and back. Generally, the range of conveying specifications is relatively small, so one production line can meet most production needs. However, there are also cases where the specifications of some circuit boards are too large or too small. Due to production cost reasons, the company will not increase the purchase of new production lines, but will dismantle one set of fixed conveying devices on the existing production line, and then reinstall the dismantled conveying devices according to the width specifications of the circuit board to adapt to the larger and smaller circuit boards. Based on experience, the efficiency of actual production and processing in production can be said to be relatively high, while the speed of disassembly, assembly and debugging is relatively slow. The time spent on production can have a larger production capacity. The above adjustment method is time-consuming and labor-intensive, affecting production capacity, and needs to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a feeding mechanism for a placement machine, which is used to solve the problem that the existing feeding mechanism for a placement machine has a relatively small range of conveying specifications and sizes, resulting in time-consuming and labor-intensive adjustment and affecting production capacity when the width of the feeding mechanism needs to be adjusted when encountering circuit boards with larger or smaller specifications and sizes.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A feeding mechanism of a placement machine comprises a conveyor frame arranged on one side of a machine body, longitudinal slide rails are arranged at positions near both sides of the conveyor frame, two sets of the slide rails are respectively slidably connected to two sliders, longitudinal screw nuts are fixedly installed on the sliders, two sets of screw nuts located on both sides above the conveyor frame are respectively threadedly connected to positive and negative threaded screws, two sets of screw nuts located above the conveyor frame near the front and back sides are respectively fixedly connected to conveying devices symmetrically arranged front and back, a ball bearing seat is fixedly connected at a corresponding position in the middle of the slide rail, and a handle bolt supported on the surface of the positive and negative threaded screws is threadedly connected to the surface of one of the ball bearing seats.

[0007] Preferably, a crank is fixedly mounted on one end of one of the forward and reverse screw rods.

[0008] Preferably, a flow strip is fixedly connected to the top of the inner wall of the conveying device.

[0009] Preferably, a synchronous wheel is fixedly mounted on the same end of the two groups of positive and negative threaded rods, and adjacent synchronous wheels are connected by a synchronous belt transmission.

[0010] Preferably, a protective cover which is sleeved on the outside of the synchronous belt and the synchronous wheel is fixedly mounted on the conveyor frame.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model discloses a kind of novel structure, and the utility model discloses the structure of the present invention is simple to adjust, and the utility model discloses the structure of the present invention is simple to adjust, and the utility model discloses the structure of the present invention is simple to adjust, and the utility model discloses the structure of the present invention is simple to adjust, and the utility model discloses the structure of the present invention is simple to adjust, and the utility model discloses the structure of the present invention is simple to adjust, and the utility model discloses the structure of the present invention is simple to adjust, and the utility model discloses BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 The utility model is a schematic diagram of the left-side stereoscopic structure at the corresponding position of the conveyor frame with the protective cover removed.

[0015] In the figure: 1. conveyor frame; 2. slide rail; 201. slider; 3. screw nut; 4. positive and negative screw; 5. conveying device; 501. smooth strip; 6. synchronous wheel; 7. synchronous belt; 8. crank; 9. ball bearing seat; 901. handle bolt; 10. protective cover. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 1-2 As shown, the utility model provides a technical solution: a feeding mechanism of a placement machine, including a conveyor frame 1 arranged on one side of a machine body, longitudinal slide rails 2 are arranged at positions near both sides of the conveyor frame 1, a protective cover 10 sleeved on the outside of a synchronous belt 7 and a synchronous wheel 6 is fixedly installed on the conveyor frame 1, two sets of slide rails 2 are respectively slidably connected to two sliders 201, longitudinal screw nuts 3 are fixedly installed on the sliders 201, and two sets of screw nuts 3 located on both sides above the conveyor frame 1 are respectively threadedly connected to positive and negative thread screws 4.

[0018] A ball bearing seat 9 is fixedly connected at a corresponding position in the middle of the slide rail 2 , and a handle bolt 901 supported on the surface of the positive and negative threaded rod 4 is threadedly connected to the surface of one of the ball bearing seats 9 to fix the position of the positive and negative threaded rod 4 .

[0019] A synchronous wheel 6 is fixedly installed on the same end of the two groups of positive and negative threaded screws 4, and the adjacent synchronous wheels 6 are connected by a synchronous belt 7. A crank 8 is fixedly installed on one end of one of the positive and negative threaded screws 4. The two groups of screw nuts 3 located above the conveyor frame 1 near the front and back are respectively fixedly connected to the conveying devices 5 symmetrically arranged front and back, and a smooth strip 501 is fixedly connected to the top of the inner wall of the conveying device 5.

[0020] Working principle: According to the width specification of the circuit board, adjust the distance between the two conveying devices 5, loosen the handle bolt 901, turn the crank 8 to drive the forward and reverse screw rods 4 to rotate, and the rotating forward and reverse screw rods 4 drive another forward and reverse screw rod 4 to rotate synchronously through the synchronous belt 7 and the synchronous wheel 6. The forward and reverse screw rods 4 drive the two conveying devices 5 to move closer to or away from each other along the slide rail 2 through forward or reverse rotation to adapt to the width specification of the circuit board. In addition, the forward and reverse screw rods 4 and the two conveying devices 5 can be moved forward and backward synchronously to adapt to the conveying position of the circuit board. The position can be fixed by tightening the handle bolt 901. The width and position of the entire mechanism are simple to adjust, and locking and fixing are convenient, which saves time and effort and greatly reduces the impact on production capacity.

[0021] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism of a placement machine, comprising a conveying frame (1) arranged on one side of a machine body, characterized in that: The conveyor frame (1) is provided with longitudinal slide rails (2) at positions near both sides, and two sliders (201) are respectively slidably connected to the two groups of the slide rails (2), and longitudinal screw nuts (3) are fixedly installed on the sliders (201). The two groups of screw nuts (3) located on both sides above the conveyor frame (1) are respectively threadedly connected with positive and negative threaded screws (4), and the two groups of screw nuts (3) located above the conveyor frame (1) near the front and back are respectively fixedly connected to the conveying devices (5) symmetrically arranged front and back, and a ball bearing seat (9) is fixedly connected at a corresponding position in the middle of the slide rail (2), and a handle bolt (901) supported on the surface of the positive and negative threaded screws (4) is threadedly connected on the surface of one of the ball bearing seats (9).

2. A feeding mechanism for a chip mounter according to claim 1, characterized in that: A crank (8) is fixedly mounted on one end of one of the forward and reverse threaded rods (4).

3. A feeding mechanism for a chip mounter according to claim 1, characterized in that: A flow strip (501) is fixedly connected to the top of the inner wall of the conveying device (5).

4. A feeding mechanism for a chip mounter according to claim 1, characterized in that: A synchronous wheel (6) is fixedly mounted on the same end of the two groups of positive and negative threaded rods (4), and adjacent synchronous wheels (6) are connected by a synchronous belt (7).

5. The feeding mechanism of a chip mounter according to claim 1, characterized in that: A protective cover (10) sleeved on the outside of the synchronous belt (7) and the synchronous wheel (6) is fixedly mounted on the conveyor frame (1).

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