A wave-soldering process unpowered transfer device

Abstract

The utility model discloses a kind of unpowered transfer devices of wave-soldering processing, including frame trolley, the top of frame trolley is obliquely arranged slide table;The middle part of slide table is fixed with multiple guide channel steel extended from slide table high position to slide table low position and the section is U-shaped structure, and the both sides of slide table conveying direction are fixed with vertically arranged baffle;The top of guide channel steel is opened and is rotationally connected multiple guide wheels along slide table conveying direction, and multiple guide channel steel is spaced parallel arrangement;The baffle on slide table low position end is fixedly hung with elastic blocking net. The transfer device uses "slide" principle to transfer carrier / template on slide table by its gravity, without consuming power, and conveying total length and conveying gradient can be low-cost adjusted with use, and the effect of cost reduction and efficiency improvement is remarkable.

Description

Technical Field

[0001] This utility model relates to the field of workpiece transfer production line technology, specifically a non-powered transfer device for wave soldering processing. Background Technology

[0002] Currently, in the wave soldering production process, circuit boards must be positioned and supported by a carrier / template before entering the soldering machine. However, existing wave soldering machines do not have a reusable carrier / template production line. After the circuit board is soldered and removed from the carrier / template, the carrier / template still needs to be moved to the feeding end of the wave soldering machine for reinstallation and positioning of the circuit board to be soldered. Existing technologies mostly use electric conveyor belts or conveyor carts for the continuous transfer of carriers / templates, such as:

[0003] Chinese patent CN110842321A discloses an automatic conveying system for PCBA reflow fixtures, including a wave soldering furnace, an input-side conveyor belt, an output-side conveyor belt, and an AGV trolley. The AGV trolley transports the fixtures from the rear of the furnace to the front of the furnace. On the one hand, it can reduce the number of fixtures and improve the space utilization of the production line; on the other hand, it can also reduce the physical exertion of operators and reduce labor intensity.

[0004] Chinese patent CN113909623A discloses an automatic transport component for a wave soldering machine, including a base, a transmission device, a mounting plate, a placement plate, an error-proofing device, a sensing device, a control panel, a slider device, buffer blocks, and a limiting plate. The transmission device is mounted on the base; the mounting plate is installed inside the transmission device; the placement plate is placed on the transmission device; the error-proofing device is installed on the placement plate; the sensing device is installed on the error-proofing device; the control panel is installed on the transmission device; the slider device is placed inside the mounting plate; the limiting plate is installed at both ends of the transmission device by screws, restricting the movement of the placement plate; buffer blocks are symmetrically installed at both ends of the placement plate. This device achieves fully automated operation and is equipped with an error-proofing device to avoid adverse consequences caused by incorrect fixtures.

[0005] Chinese patent CN107777291A discloses an automatic transport device for a wave soldering machine, including a housing, rollers, guide rails, bearings, a drive shaft, a front rail, a rear rail, a front limit switch, a rear limit switch, an upper limit switch, a controller, and a reduction motor. The output shaft and the drive shaft are connected by a chain. The distance from the inlet to the outlet of the wave soldering machine is approximately equal to the length of the guide rail. In this automatic transport device, when a fixture is placed on the device, the switch automatically closes, transporting the fixture from the outlet to the inlet of the wave soldering machine. When the operator removes the fixture, the device automatically returns to its original position, repeating this process. When no fixture needs to be transported, the device remains stationary and consumes no power. This ground-rail type device saves space, is energy-efficient, and most importantly, significantly improves production efficiency and reduces production costs.

[0006] Chinese patent CN203946583U discloses a circular assembly line structure for a controller carrier, consisting of a conveyor belt and a return conveyor belt connected at one end. Both conveyor belts pass through a wave soldering machine. A return unit is installed at the other end of the conveyor belt and a unit for adjusting the angle of the controller carrier is also installed on the conveyor belt. This utility model has a simple structure and is easy to install. The adjustment unit effectively controls the angle of the controller carrier after exiting the wave soldering machine, making the controller carrier run smoothly and less prone to falling. A photoelectric switch enables automatic identification of the controller carrier. A rotating shaft enables the hinge between the roller conveyor frame and the main frame. The arrangement of cylinders effectively reduces the installation space and replaces the traditional complex controller lifting mechanism, greatly improving the speed of the processing line and increasing production efficiency.

[0007] Chinese patent CN212220434U discloses a wave soldering reflow template transport vehicle, including a template placement platform, a trolley frame, and drive wheel assemblies. The template placement platform is fixed on top of the trolley frame, and silent swivel casters are installed at the four corners of the trolley frame's bottom. Drive wheel assemblies are installed on both sides of the bottom center of the trolley frame. This invention can continuously transport the reflow templates from the wave soldering area to the front of the insertion line, completing the cyclical operation of the reflow fixture. This significantly reduces the workload of manual template handling. Furthermore, compared to conveyor belt lines, it does not require a track on the ground; only a guiding magnetic strip is needed, saving workshop space and offering a more aesthetically pleasing and flexible layout.

[0008] Chinese patent CN219093902U discloses an automatic reflow mechanism for wave soldering carriers, including a lower tooling assembly located at the outlet of the wave soldering equipment to receive the wave soldering carriers exiting the equipment; an upper tooling assembly located at the inlet of the equipment to return the wave soldering carriers transferred from the lower tooling assembly upwards; a transfer track located between the outlet of the lower tooling assembly and the inlet of the upper tooling assembly, situated at the lower part of the wave soldering equipment; and a reflow insert located on the transfer track as a reflow transport intermediary for the wave soldering carriers. This invention offers at least the following advantages: Automated transfer eliminates the need for manual back-and-forth transport, improving transport efficiency and indirectly increasing the speed of wave soldering. Furthermore, placing the transfer track at the bottom of the wave soldering equipment body avoids additional space occupation, resulting in a clever and highly practical mechanism.

[0009] The shortcomings of the existing technology are: 1. Existing carrier / formwork assembly line transportation devices all require electric drive, resulting in high electricity costs; maintenance and troubleshooting require equipment personnel for maintenance; and the cost of equipment installation and setup is also high; 2. The length and adaptability height of the electric conveyor assembly line of the carrier / formwork are difficult to adjust on demand at low cost. Utility Model Content

[0010] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of this utility model is to propose a non-powered transfer device for wave soldering. This transfer device utilizes the "slide" principle to move the carrier / template on the slide table by its own weight, without consuming electricity. Moreover, the total length and slope of the conveying can be adjusted on demand at low cost, resulting in significant cost reduction and efficiency improvement.

[0011] To address the aforementioned problems, this utility model proposes a non-powered transfer device for wave soldering, comprising a frame trolley with an inclined slide table on its top; multiple guide channel steels with U-shaped cross-sections extending from the high to the low position of the slide table are fixedly installed in the middle of the slide table, and vertically arranged baffles are fixed on both sides of the slide table in the conveying direction; the top of the guide channel steels is open and rotatably connected to multiple guide wheels along the conveying direction of the slide table, and the multiple guide channel steels are arranged parallel at intervals; an elastic barrier net is fixedly hung on the baffle at the low end of the slide table.

[0012] Preferably, the bottom of the frame trolley is rotatably connected to universal casters, and the top of the frame trolley is tilted and fixedly supported by a slide. The frame trolley is available in various models from high to low according to the total length and slope of the slide transport required by the working environment. During operation, multiple trolleys are spliced ​​together end to end to form a non-powered transfer device for wave soldering processing.

[0013] Preferably, the upper tilt angle and height adjustment support slide of the frame trolley has multiple pin holes of different heights on the uprights at both ends of the frame trolley; the pin holes are fixedly connected to the pins at the high and low ends of the support slide.

[0014] Preferably, a connecting ear is fixedly provided at the bottom of the high end of the slide table, and a horizontally arranged hanging rod is fixedly provided at the bottom of the low end of the slide table; a pin at the high end of the slide table is rotatably inserted into the connecting ear; an adaptive protective sleeve plate is fitted on the hanging rod, the adaptive protective sleeve plate has an adaptive elongated hole, and the top surface of the adaptive protective sleeve plate slides to support the bottom surface of the low end of the slide table; a pin at the low end of the slide table is also rotatably inserted into the adaptive elongated hole, and a straight line is formed by the pin at the low end of the slide table and the outer wall of the hanging rod to position the tilt angle of the adaptive protective sleeve plate.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] This utility model discloses a non-powered transfer device for wave soldering. It utilizes a movable frame trolley for main support, facilitating the adjustment of the overall conveying slope and total length of the conveying path for multiple frame trolleys to be spliced ​​end-to-end for transfer. Furthermore, multiple parallel, spaced guide channels provide rotatable support for multiple guide wheels. Since the extension direction of the guide channels is the conveying direction of the slide, this design effectively prevents the carrier / template from jamming during transport. Additionally, baffles on both sides of the slide prevent the carrier / template from detaching from the slide's conveying area during descent. Moreover, an elastic barrier net is fixed at the lowest point of the slide on the last frame trolley, providing end-of-line collection and buffering for the carrier / template. Finally, an adaptive sleeve plate with adaptive elongated holes slides to support the lower end of the slide, and a connecting lug rotats to connect the upper end of the slide. This solves the structural self-locking problem of the connection between the slide ends and the upright pins at both ends of the frame trolley when adjusting the slide tilt angle (i.e., the slide conveying slope) on a single frame trolley. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention (Embodiment 1);

[0019] Figure 2 This is a schematic diagram of the structure of the present invention (Embodiment 2);

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 This is a side sectional view of the present invention (Embodiment 2, conveying posture of the slide table with a small slope);

[0022] Figure 5 This is a side sectional view of the present invention (Embodiment 2, conveying posture of the slide table with a large slope);

[0023] Figure 6 yes Figure 4 A magnified view of a section at point A in the middle;

[0024] In the diagram: 1-Frame trolley; 2-Slide table; 3-Universal caster; 4-Pin hole; 5-Pin rod; 6-Baffle; 7-Guide channel steel; 8-Guide wheel; 9-Elastic barrier net; 10-Adaptive protective sleeve plate; 11-Connecting ear; 12-Adaptive elongated hole; 13-Hanging rod. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] Combination Figures 1-6 This utility model discloses a non-powered transfer device for wave soldering, comprising a frame trolley 1, with a slide 2 inclinedly mounted on the top of the frame trolley; multiple guide channel steels 7 extending from the high position to the low position of the slide 7 with a U-shaped cross-section are fixedly mounted in the middle of the slide 7, and vertically mounted baffles 6 are fixedly mounted on both sides of the slide 7 in the conveying direction; the top of the guide channel steels is open and rotatably connected to multiple guide wheels 8 along the conveying direction of the slide 7, and the multiple guide channel steels are arranged parallel at intervals; an elastic barrier net 9 is fixedly hung on the baffle at the low end of the slide 7.

[0029] Preferably, the bottom of the frame trolley is rotatably connected with universal casters 3, the top of the frame trolley is tilted and fixedly supported by a slide, and the frame trolley is available in various models from high to low according to the total length and slope of the slide transport required by the working environment. During operation, multiple trolleys are spliced ​​together end to end to form a non-powered transfer device for wave soldering processing.

[0030] Preferably, the upper tilt angle and height adjustment support slide of the frame trolley are provided with multiple pin holes 4 of different heights on the uprights at both ends of the frame trolley; the pin holes are fixedly connected with pin rods 5 at the high and low ends of the support slide.

[0031] Preferably, a connecting lug 11 is fixedly provided at the bottom of the high end of the slide table, and a horizontally arranged hanging rod 13 is fixedly provided at the bottom of the low end of the slide table; a pin at the high end of the slide table is rotatably inserted into the connecting lug; an adaptive protective sleeve 10 is fitted on the hanging rod, and an adaptive elongated hole 12 is opened in the adaptive protective sleeve, and the bottom surface of the low end of the slide table is slidably supported on the top surface of the adaptive protective sleeve; a pin at the low end of the slide table is also rotatably inserted into the adaptive elongated hole, and a straight line is formed by the pin at the low end of the slide table and the outer wall of the hanging rod to position the tilt angle of the adaptive protective sleeve.

[0032] The working principle of this utility model is as follows:

[0033] This utility model discloses a non-powered transfer device for wave soldering. According to the needs of the construction environment, multiple frame trolleys are connected end to end in sequence. The slides on the multiple frame trolleys are connected end to end with a slope. The highest position of the slide is located at the discharge end of the wave soldering machine. A carrier / template with the circuit board removed and unloaded is placed on the slide at this end. The carrier / template is driven by its own weight to slide to the lower end of the slide. The lowest position of the slide is located at the feed end of the wave soldering machine, which makes it convenient for the workers to remove the carrier / template from the elastic barrier of the slide and reload the positioning circuit board.

[0034] It should also be noted that the frame trolleys in the two embodiments of this utility model can be manufactured into suitable shapes according to the requirements of the construction environment, such as... Figure 3 The figure shown is a top view of the present invention. In this top view, the cross-section of the frame trolley is rectangular. If there is existing equipment occupying or interfering during the slide conveying process, the slide can be made into a conveying structure with an arc or spiral cross-section. In this process, it is only necessary to ensure that the multiple slides of multiple frame trolleys are connected end to end in sequence.

[0035] Finally, embodiment two of this utility model (as shown) Figures 4-6 In this process, the adaptive sheath plate is used to connect the pins and the hanging rods, and a radial displacement allowance is left in the adaptive elongated hole for the pins and the hanging rods to avoid the structural self-locking problem when the slope of the slide is adjusted and the two ends of the slide plate are connected to the pins of the frame trolley.

[0036] Compared with existing electric transfer devices that have fixed transfer paths and lengths, the advantages of this invention are as follows:

[0037] This invention does not use electric power; it only utilizes gravitational potential energy to complete the transfer, thus saving energy.

[0038] This utility model has no electrical connection, can be moved at will, and has greater flexibility in space utilization.

[0039] This utility model has a width of 65cm, and can be used with jigs smaller than this size without adjustment, making it highly versatile.

[0040] The guide wheel design on the upper surface of the slide table of this utility model uses PVC material guide wheels, which reduces transportation resistance, prevents static electricity, and is sturdy and durable.

[0041] The lower end of this utility model is equipped with a 2cm thick EVA foam board flexible barrier net as a shock-absorbing pad to buffer the fall of the protective device.

[0042] In this invention, the slope angle of the sliding table is between 3° and 4°, ensuring that the fixture slides smoothly without jamming while maintaining a small height difference between the two ends.

[0043] The two sides of the slide ramp of this utility model use L-shaped baffles to ensure that the fixture will not slip during the transfer process.

[0044] This utility model adopts segmented assembly, which is highly flexible and adjustable. The length can be adjusted, and the stability of the transport ramp is better. The bottom of this utility model uses universal casters, which can be finely adjusted as needed.

[0045] This utility model allows personnel to place protective gear in sequence, and personnel can take it in sequence. The transport device can be filled with gear at the same time and automatically slide down to complete the transport.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited to this. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A non-powered transfer device for wave soldering, characterized in that: The system includes a frame trolley with an inclined slide on top. Multiple U-shaped guide channels are fixedly installed in the middle of the slide, extending from the higher to the lower end. Vertical baffles are fixed on both sides of the slide in the conveying direction. The top of each guide channel is open and rotatably connected to multiple guide wheels along the slide's conveying direction, with the guide channels spaced parallel to each other. An elastic barrier net is fixedly attached to the baffle at the lower end of the slide.

2. The non-powered transfer device for wave soldering according to claim 1, characterized in that: The bottom of the frame trolley is rotatably connected to universal casters, and the top of the frame trolley is tilted and fixedly supported by a slide. The frame trolley is available in various models from high to low according to the total length and slope of the slide transport required by the working environment. During operation, multiple trolleys are spliced ​​together end to end to form a non-powered transfer device for wave soldering processing.

3. The non-powered transfer device for wave soldering according to claim 1, characterized in that: The upper tilt and height adjustment support slide of the frame trolley has multiple pin holes of different heights on the uprights at both ends of the frame trolley; the pin holes are fixedly connected to the pins at the high and low ends of the support slide.

4. The non-powered transfer device for wave soldering according to claim 3, characterized in that: A connecting lug is fixedly provided at the bottom of the high end of the slide table, and a horizontally arranged hanging rod is fixedly provided at the bottom of the low end of the slide table; a pin at the high end of the slide table is rotatably inserted into the connecting lug; an adaptive protective sleeve plate is fitted on the hanging rod, and an adaptive elongated hole is opened in the adaptive protective sleeve plate, and the bottom surface of the low end of the slide table is slidably supported on the top surface of the adaptive protective sleeve plate; a pin at the low end of the slide table is also rotatably inserted into the adaptive elongated hole, and a straight line is formed by the pin at the low end of the slide table and the outer wall of the hanging rod to position the tilt angle of the adaptive protective sleeve plate.

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