CN216334999U

CN216334999U - Conveying structure on SMT production line

Info

Publication number: CN216334999U
Application number: CN202122921096.3U
Authority: CN
Inventors: 唐程; 夏鹏
Original assignee: Shenzhen Minew Technologies Co ltd
Current assignee: Shenzhen Minew Technologies Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-19
Anticipated expiration: 2031-11-25

Abstract

The utility model belongs to the technical field of SMT equipment, and particularly relates to a conveying structure on an SMT production line, which comprises a plurality of processing devices and processing stations, wherein the processing stations are arranged in each processing device; the transmission mechanism is arranged on the conveying mechanism in each processing device; the conveying mechanism comprises two side brackets and two annular conveying belts which are respectively arranged at the inner sides of the two side brackets; the cross section of the annular conveyor belt is circular; the inner walls of the two end parts of the two side brackets are respectively provided with a supporting plate; at least one transition plate is respectively arranged on the inner wall of one end part of each of the two inner side supports of the conveying mechanism, and the transition plates on the inner side supports are used for corresponding to the support plates on the side supports. Compared with the existing similar equipment, the structure of the connection position is improved, and the problem of clamping plates is solved after the annular conveyor belt is changed into a cylinder from a flat type; the ejector pins are adopted to replace the jigs, a large number of jigs do not need to be manufactured for each product, and manufacturing cost and management work of the jigs are saved.

Description

Conveying structure on SMT production line

Technical Field

The utility model relates to the technical field of SMT (surface mount technology) equipment, in particular to a transmission structure for preventing thin PCB (printed circuit board) from being stuck on a card board on an SMT production line.

Background

SMT is an abbreviation for electronic circuit surface assembly technology. The internet of things needs smaller and lighter electronic sensing products to be arranged in objects so as to achieve interconnection of everything; PCBs (printed circuit boards) are becoming thinner and thinner, and a large number of fields are beginning to be realized by FPCs (flexible circuit boards); the product that PCB thickness is less than 1.0mm must have the utensil of carrying just can steadily transmit when SMT paster, also must have the utensil of carrying just can stabilize, realizes the accurate location of chip mounter and accurate dress components and parts. The SMT production line generally sequentially comprises a board loading machine, a solder paste printing machine, a chip mounter, an AOI (automated optical inspection) machine, a chip mounter, a reflow oven and an AOI (automated optical inspection) machine, wherein various devices are positioned on different stations to process the PCB, a transmission mechanism between two adjacent stations is used for transmitting when a workpiece is transmitted to the next station, a transmission mechanism is arranged in the device of each station, and the transmission mechanism between the two devices is respectively butted with the transmission mechanisms in the two devices; the existing production line has the problems that when a PCB workpiece passes through a connection position between a transmission mechanism and a transmission mechanism, the PCB workpiece is easy to clamp, so that the PCB workpiece cannot be smoothly transmitted, and the processing of the next station is influenced; secondly, a workpiece is fixed by using carriers such as a jig, different jigs are designed according to the characteristics of the workpiece, and the processing cost is increased; and put the PCB board through manual and fix on the tool, put the deviation and can lead to equipment to report to the police in subsequent production operation, influence efficiency.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a transmission structure on an SMT production line, which aims to solve the problem that a PCB workpiece is easy to clamp in the transmission process of the prior SMT production line.

In order to achieve the purpose, the utility model adopts the technical scheme that: a conveying structure on an SMT production line comprises a plurality of processing devices and processing stations arranged in each processing device; a transmission mechanism and a conveying mechanism arranged in each processing device are arranged between every two adjacent processing devices, and the transmission mechanisms and the conveying mechanisms positioned at the outer sides of the two ends of the transmission mechanisms are arranged in a straight line; the conveying mechanism comprises two side brackets and two annular conveying belts which are respectively arranged at the inner sides of the two side brackets; the cross section of the annular conveyor belt is circular; the inner walls of the two end parts of the two side brackets are respectively provided with a supporting plate; at least one transition plate is respectively arranged on the inner wall of one end part of each of the two inner side supports of the conveying mechanism, and the transition plates on the inner side supports are used for corresponding to the support plates on the side supports.

Preferably, the four supporting plates in the two side brackets are positioned at the same height; the supporting plate is formed by integrally forming a transverse plate and a vertical plate, wherein one end of the transverse plate is fixedly connected with the inner wall of the end part of the side bracket, and the vertical plate is perpendicular to the free end of the transverse plate.

Preferably, at least one ejector pin for supporting the workpiece is arranged between two inner supports of the conveying mechanism in each processing device.

The beneficial technical effects are as follows: the transmission mechanism is arranged between two adjacent stations, the annular conveyor belts arranged on the inner sides of two side brackets of the transmission mechanism are cylinders with circular cross sections, the connection positions between two ends of the transmission mechanism and the transmission mechanisms on two sides of the transmission mechanism are respectively provided with a transition structure, the transition structure comprises two support plates respectively arranged on the inner walls of one end parts of the two side brackets and two transition plates respectively arranged on the inner walls of one end parts of the two inner side brackets, and when a PCB workpiece passes through the connection position, the PCB workpiece can stably run through the transition structure to prevent jamming at the connection position; meanwhile, at least one thimble for supporting the PCB workpiece is arranged between the two inner side brackets of the conveying mechanism to replace the existing jig for fixing the PCB workpiece; compared with the existing similar equipment, the structure of the connection position between the two ends of the transmission mechanism and the transmission mechanisms on the two sides of the transmission mechanism is improved, and the problem of clamping plates is solved after the annular transmission belt is changed into a cylinder from a flat type; the ejector pins are adopted to replace the jigs, so that a large number of jigs do not need to be manufactured for each product, and the manufacturing cost and the management work of the jigs are saved; by using the ejector pin, the PCB with the thickness of 0.4 mm-1.0 mm can be produced without a jig; by using the SMT multifunctional ejector pin, the bad phenomena of part missing, part placing offset, part flying and the like are reduced in the production and surface mounting process of the PCB with the plate thickness of 0.4-1.0 mm.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is an enlarged view A of a portion of FIG. 1;

FIG. 3 is a partial enlarged view B of FIG. 1;

fig. 4 is a partial enlarged view C of fig. 1.

Detailed Description

In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and embodiments.

As shown in fig. 1, an embodiment of the present invention provides a conveying structure on an SMT production line, including a plurality of processing devices 1, where the processing devices are various devices on the SMT production line, such as a board loader, a solder paste printer, a chip mounter, an AOI detector, a chip mounter, a reflow oven, an AOI detector, and the like; each processing device is internally provided with various processing stations; a transmission mechanism 2 is arranged between two adjacent processing devices and used for transmitting the workpiece to the next station, and a transmission mechanism 3 is arranged in each processing device 1 and used for transmitting the processed workpiece; the transmission mechanism 2 and the transmission mechanisms 3 positioned at the outer sides of the two ends of the transmission mechanism are arranged in a straight line shape; the conveying mechanism 2 comprises two side brackets 201, two annular conveying belts 202 which are respectively arranged at the inner sides of the two side brackets; in order to improve the processing efficiency, there are more than one set of the conveying mechanism 2 and the conveying mechanism 3, for example, the conveying mechanism 2 and the conveying mechanism 3 adopted in this embodiment are both two sets.

As shown in fig. 2, in the present embodiment, the cross section of the endless conveyor 202 is circular; that is, the endless belt 202 is made of a cylindrical belt.

As shown in fig. 2-3, a support plate 4 is respectively arranged on the inner walls of the two end parts of the two side brackets 201; at least one transition plate 5 is respectively arranged on the inner wall of one end part of each of two inner side brackets 301 of the conveying mechanism 3, and the transition plates 5 on the inner side brackets 301 are used for corresponding to the supporting plates 4 on the side brackets; by corresponding, it is meant that the transition plate 5 and the support plate 4 are present in pairs for smoothly guiding the workpiece from the transport mechanism 2 to the transport mechanism 3 or for smoothly guiding the workpiece from the transport mechanism 3 to the transport mechanism 2, preventing the occurrence of a jamming phenomenon. For the processing equipment on the SMT production line, the inner walls of one end parts of two inner side brackets 301 in the equipment at two ends are respectively provided with a transition plate 5, while the inner walls of two end parts of the two inner side brackets 301 in the processing equipment at the middle are respectively provided with a transition plate 5.

As shown in fig. 3, the four support plates 4 in the two side brackets 201 are located at the same height; the supporting plate 4 is formed by integrally molding a transverse plate 401 with one end fixedly connected with the inner wall of the end part of the side bracket and a vertical plate 402 vertical to the free end of the transverse plate.

As shown in fig. 4, in order to support the workpiece during the processing and prevent the workpiece from deforming, at least one thimble 6 for supporting the workpiece is arranged between two inner brackets 301 of the conveying mechanism 3 in each processing device 1, for example, the thimble 6 is arranged between the two inner brackets 301 of the conveying mechanism 3 of the reflow oven to prevent the workpiece from deforming; the number of the ejector pins 6 provided in the conveying mechanism 3 is not particularly limited, and is set according to actual conditions, so that the workpiece is ensured not to be deformed and is conveyed smoothly.

In summary, the conveying mechanism 2 is arranged between two adjacent stations, the annular conveying belts 202 arranged on the inner sides of two side brackets of the conveying mechanism 2 are cylinders with circular cross sections, and a transition structure is respectively arranged at the connection position between the two ends of the conveying mechanism and the conveying mechanisms on the two sides of the conveying mechanism, and the transition structure comprises two supporting plates 4 respectively arranged on the inner walls of one end parts of the two side brackets and two transition plates 5 respectively arranged on the inner walls of one end parts of the two inner side brackets, which is shown in fig. 3 for specific reference; when the PCB workpiece passes through the connection position, the stable operation is realized through a transition structure, and the clamping of the PCB workpiece at the connection position is prevented; meanwhile, at least one thimble 6 for supporting the PCB workpiece is arranged between the two inner side brackets 301 of the conveying mechanism 3, so that a jig for fixing the PCB workpiece at present is replaced; compared with the existing similar equipment, the structure of the connection position between the two ends of the transmission mechanism and the transmission mechanisms on the two sides of the transmission mechanism is improved, and the problem of clamping plates is solved after the annular transmission belt is changed into a cylinder from a flat type; the ejector pins are adopted to replace the jigs, so that a large number of jigs do not need to be manufactured for each product, and the manufacturing cost and the management work of the jigs are saved; by using the ejector pin, the PCB with the thickness of 0.4 mm-1.0 mm can be produced without a jig; by using the SMT multifunctional ejector pin, the bad phenomena of part missing, part placing offset, part flying and the like are reduced in the production and surface mounting process of the PCB with the plate thickness of 0.4-1.0 mm.

In the above description, it should be noted that the terms "mounted," "connected," and the like are used in a broad sense, and for example, they may be fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the utility model without limiting its scope. This invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. All equivalent structures made by using the contents of the specification and the attached drawings of the utility model can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the utility model.

Claims

1. A conveying structure on an SMT production line comprises a plurality of processing devices and processing stations arranged in each processing device; a transmission mechanism and a conveying mechanism arranged in each processing device are arranged between every two adjacent processing devices, and the transmission mechanisms and the conveying mechanisms positioned at the outer sides of the two ends of the transmission mechanisms are arranged in a straight line; the conveying mechanism comprises two side brackets and two annular conveying belts which are respectively arranged at the inner sides of the two side brackets; the device is characterized in that the cross section of the annular conveyor belt is circular; the inner walls of the two end parts of the two side brackets are respectively provided with a supporting plate; at least one transition plate is respectively arranged on the inner wall of one end part of each of the two inner side supports of the conveying mechanism, and the transition plates on the inner side supports are used for corresponding to the support plates on the side supports.

2. A conveying structure in an SMT line as recited in claim 1, wherein four supporting plates in two side brackets are located at the same height; the supporting plate is formed by integrally forming a transverse plate and a vertical plate, wherein one end of the transverse plate is fixedly connected with the inner wall of the end part of the side bracket, and the vertical plate is perpendicular to the free end of the transverse plate.

3. A conveying structure in an SMT line as set forth in claim 2, wherein at least one ejector pin for supporting the workpiece is provided between both inner frames of the conveying mechanism in each processing unit.