Circuit board placing device

Abstract

The utility model relates to a circuit board placing device which comprises a material frame and a supporting assembly. The supporting assembly comprises at least two roller shafts arranged at intervals in the first direction, each roller shaft comprises a bearing part and a bearing cylinder, the bearing parts are connected to the material frame, the axes of the bearing parts extend in the second direction, the bearing cylinders are arranged on the bearing parts in a sleeving mode and can rotate in the second direction relative to the bearing parts, and the bearing cylinders are used for supporting the bearing discs; wherein the first direction is parallel to the advancing direction of the bearing disc, and the second direction is perpendicular to the first direction. According to the circuit board placing device, the bearing cylinder is arranged on the bearing part and can rotate around the second direction relative to the bearing part, so that when the bearing disc slides in or out of the circuit board placing device, the bearing cylinder can rotate relative to the bearing disc, sliding friction is converted into rolling friction, abrasion to the bottom of the bearing disc is reduced, and the service life of the bearing disc is prolonged. The service life of the bearing disc is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board presses, in particular to a circuit board placing device. Background Art

[0002] PCB material rack is a transfer storage device for materials to be pressed or finished products in the PCB pressing process. Due to the development of the industry and the need to improve efficiency, the size of PCB pressing plates is getting larger and larger, and the height of pressed materials is getting higher and higher, which makes the transfer materials placed on the material rack heavier and heavier. Due to the heavy weight of PCB transfer materials, when pushing or sliding the PCB transfer materials into or out of the material rack, the carrier plate carrying the transfer materials will rub against the material rack, causing damage to the carrier plate, thereby affecting the service life of the carrier plate. Utility Model Content

[0003] Based on this, it is necessary to provide a circuit board placing device to address the technical problem in the prior art that due to the heavy weight of the PCB transfer materials, when pushing the PCB transfer materials into or sliding them out of the placing rack, the carrying plate carrying the PCB transfer materials will rub against the placing rack, causing damage to the carrying plate, thereby affecting the service life of the carrying plate.

[0004] A circuit board placement device comprises a material rack and a support assembly; the support assembly comprises at least two rollers spaced apart along a first direction, the rollers comprise a bearing member and a bearing cylinder, the bearing member is connected to the material rack, and the axis of the bearing member extends along a second direction, the bearing cylinder is sleeved on the bearing member and can rotate relative to the bearing member around the second direction, and the bearing cylinder is used to support a bearing plate; wherein the first direction is parallel to the travel direction of the bearing plate, and the second direction is perpendicular to the first direction.

[0005] In one embodiment, the supporting components are at least two groups, and the at least two groups of the supporting components are spaced apart along the second direction, and the at least two groups of the supporting components are respectively used to support the two ends of the supporting plate along the second direction.

[0006] In one of the embodiments, in the second direction, the radial dimension of the support tube gradually decreases from the center point of the support tube to both sides, and in the direction perpendicular to the second direction, the projection profile of the outer tube wall of the support tube is arc-shaped.

[0007] In one of the embodiments, chamfers arranged around the circumference are provided on both sides of the supporting tube along the second direction.

[0008] In one embodiment, the supporting member includes a supporting rod and a limiting portion, the supporting tube is sleeved on the supporting rod, the supporting rod is connected to the material rack, and a limiting wall is provided on the supporting rod, the limiting wall is used to abut against the supporting tube, the limiting portion is connected to the supporting rod, and abuts against a side of the supporting tube away from the limiting wall to limit the supporting tube from escaping.

[0009] In one embodiment, the limiting portion includes an end cover and a positioning member, the positioning member is passed through the end cover and connected to the supporting rod, one side of the end cover is used to abut against the supporting tube, and the other side is used to abut against the positioning member.

[0010] In one of the embodiments, the limiting portion further includes a sliding plate, which is sleeved on the positioning member and disposed between the supporting tube and the end cover.

[0011] In one embodiment, the roller shaft further includes a bearing, the bearing is sleeved on the bearing member and penetrates the bearing tube, and the bearing tube rotates relative to the bearing member through the bearing.

[0012] In one of the embodiments, the circuit board placement device further includes a fastener, the material rack is provided with a plurality of installation holes arranged at intervals, the fastener is passed through the installation holes and connected to the carrier to install the carrier on the material rack.

[0013] In one of the embodiments, the material rack includes a frame body and side panels, the frame body is provided with side panels on both sides along the second direction, and the mounting holes are provided on the side panels.

[0014] Beneficial effects:

[0015] The circuit board placement device provided by the embodiment of the utility model includes a material rack and a support assembly; the support assembly includes at least two rollers spaced apart along a first direction, the roller includes a bearing member and a bearing cylinder, the bearing member is connected to the material rack, and the axis of the bearing member extends along a second direction, the bearing cylinder is sleeved on the bearing member, and can rotate relative to the bearing member around the second direction, and the bearing cylinder is used to support the bearing plate; wherein the first direction is parallel to the travel direction of the bearing plate, and the second direction is perpendicular to the first direction. In the present application, by arranging the bearing cylinder on the bearing member, and the bearing cylinder can rotate relative to the bearing member around the second direction, when the bearing plate slides into or out of the circuit board placement device, the bearing cylinder can rotate relative to the bearing plate, thereby converting the sliding friction into rolling friction, reducing the wear on the bottom of the bearing plate, and improving the service life of the bearing plate. wherein, the friction force of the bearing plate sliding into or out of the circuit board placement device is reduced, which can improve the convenience of the bearing plate sliding into or out of the circuit board placement device, and improve the adaptability of the circuit board placement device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG. 1 is a schematic diagram of a circuit board placement device provided by an embodiment of the present invention.

[0017] FIG. 2 is a front view of a circuit board placing device provided in one embodiment of the utility model.

[0018] FIG3 is a cross-sectional view of a roller in a circuit board placement device according to an embodiment of the present invention.

[0019] FIG. 4 is a schematic diagram of a roller in a circuit board placement device according to an embodiment of the present invention.

[0020] Figure Number:

[0021] 100-material rack; 110-mounting hole; 120-frame; 130-side plate; 200-support assembly; 210-roller shaft; 220-bearing member; 221-bearing rod; 222-limiting part; 223-limiting wall; 224-boss; 225-end cover; 226-positioning member; 227-anti-loosening gasket; 228-slide; 230-bearing cylinder; 231-outer cylinder wall; 232-chamfer; 240-bearing; 300-fastener; 400-bearing plate; 500-circuit board pressing material. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] Referring to Figures 1 and 2, Figure 1 is a schematic diagram of a circuit board placement device provided in an embodiment of the present invention. Figure 2 is a front view of a circuit board placement device provided in an embodiment of the present invention. The circuit board placement device provided in the embodiment of the present invention comprises a material rack 100 and a support assembly 200; the support assembly 200 comprises at least two rollers 210 spaced apart along a first direction, the rollers 210 comprise a bearing member 220 and a bearing cylinder 230, the bearing member 220 is connected to the material rack 100, and the axis of the bearing member 220 extends along a second direction, the bearing cylinder 230 is sleeved on the bearing member 220, and can rotate relative to the bearing member 220 around the second direction, and the bearing cylinder 230 is used to support a bearing plate 400; wherein the first direction is parallel to the travel direction of the bearing plate 400, and the second direction is perpendicular to the first direction.

[0029] Specifically, in the present application, a bearing cylinder 230 is provided on the bearing member 220, and the bearing cylinder 230 can rotate relative to the bearing member 220 around the second direction, so that when the bearing plate 400 slides into or out of the circuit board placement device, the bearing cylinder 230 can rotate relative to the bearing plate 400, thereby converting the sliding friction into rolling friction, reducing the wear on the bottom of the bearing plate 400, and improving the service life of the bearing plate 400. Among them, the friction force of the bearing plate 400 sliding into or out of the circuit board placement device is reduced, which can improve the convenience of the bearing plate 400 sliding into or out of the circuit board placement device, and improve the adaptability of the circuit board placement device. It should be noted that the bearing plate 400 is used to carry the circuit board press 500.

[0030] It should be noted that, with reference to Figure 1 of the specification of the present application, XX' is defined as the first direction, i.e., the axial direction of the carrier 220, YY' is defined as the second direction, i.e., the direction in which the carrier plate 400 slides into or out of the circuit board placement device, and ZZ' is defined as the third direction, i.e., the height direction of the carrier plate 400, wherein the first direction, the second direction, and the third direction are perpendicular to each other, and the following description is based on the first direction, the second direction, and the third direction. Preferably, the third direction is a vertical direction.

[0031] Referring to Fig. 1, Fig. 3 and Fig. 4, Fig. 3 is a cross-sectional view of a roller in a circuit board placement device provided in an embodiment of the present invention. Fig. 4 is a schematic diagram of a roller in a circuit board placement device provided in an embodiment of the present invention. In one embodiment, the support assembly 200 is at least two groups, and at least two groups of support assemblies 200 are arranged at intervals along the second direction. At least two groups of support assemblies 200 are respectively used to support the two ends of the carrier plate 400 along the second direction, so as to stably support the carrier plate 400 equipped with the circuit board pressing material 500. Among them, at least two groups of support assemblies 200 are arranged at intervals along the second direction, so that the middle part of the carrier plate 400 does not contact the support assembly 200, thereby reducing the contact area between the carrier plate 400 and the support assembly 200, and reducing the friction.

[0032] The two ends of the carrier plate 400 along the second direction are respectively supported by a group of supporting components 200, and at least two groups of supporting components 200 are arranged at intervals along the second direction, so that multiple carrier plates 400 can be supported in the second direction.

[0033] 1 , 3 and 4 , in one embodiment, in the second direction, the radial dimension of the carrier tube 230 gradually decreases from the center point of the carrier tube 230 to both sides, and in the direction perpendicular to the second direction, the projection profile of the outer tube wall 231 of the carrier tube 230 is an arc.

[0034] Specifically, since the radial dimension of the bearing cylinder 230 gradually decreases from the center point of the bearing cylinder 230 to both sides in the second direction, and the projection profile of the outer cylinder wall 231 of the bearing cylinder 230 in the direction perpendicular to the second direction is an arc, the bearing cylinder 230 is a spindle-shaped. When the bearing plate 400 with the circuit board pressing material 500 moves along the first direction or is stationary on the support assembly 200, due to the gap between the two groups of support assemblies 200, the central area of ​​the bearing plate 400 will bend downward due to the circuit board pressing material 500 and its own weight, so that the bottom side of the bearing plate 400 is an arc, and the roller shaft 210 is also bent accordingly. Since the bearing cylinder 230 is a spindle, the bearing cylinder 230 and the bearing plate 400 can generate adaptive contact, so that the contact area between the bearing cylinder 230 and the bearing plate 400 is always kept at a minimum, thereby reducing the wear of the bearing plate in the process of pushing and pulling in and out of the circuit board placement device.

[0035] It should be noted that if the projection contour of the outer tube wall 231 of the carrying tube 230 in the direction perpendicular to the second direction is a straight line, when the bottom side of the deformed carrying plate 400 abuts against the outer tube wall 231 of the carrying tube 230, point contact will be formed, and stress concentration will be presented. Therefore, in the process of the carrying tube 230 rotating relative to the carrying plate 400 equipped with the circuit board pressing material 500, the outer tube wall 231 of the carrying tube 230 will be smoothed, thereby becoming a surface contact, thereby increasing the contact area between the carrying tube 230 and the carrying plate 400.

[0036] 3 and 4 , in one embodiment, the supporting tube 230 is provided with chamfers 232 arranged circumferentially on both sides along the second direction, so as to avoid cutting the supporting plate 400 when the roller shaft 210 is deformed and warped due to force, thereby effectively reducing the wear of the supporting plate 400 during operation.

[0037] Furthermore, the chamfers 232 on both sides of the carrier tube 230 are different in size, so as to prevent fooling. Preferably, the chamfer 232 on the side of the carrier tube 230 close to the edge of the carrier plate 400 is larger than the chamfer 232 on the side of the carrier tube 230 away from the edge of the carrier plate 400.

[0038] Referring to Figures 1, 3 and 4, in one embodiment, the supporting member 220 includes a supporting rod 221 and a limiting portion 222, the supporting tube 230 is sleeved on the supporting rod 221, the supporting rod 221 is connected to the material rack 100, and a limiting wall 223 is provided on the supporting rod 221, the limiting wall 223 is used to abut against the supporting tube 230, the limiting portion 222 is connected to the supporting rod 221, and abuts against the side of the supporting tube 230 away from the limiting wall 223 to limit the supporting tube 230 from escaping.

[0039] Specifically, the limiting wall 223 is used to abut against the side of the carrying cylinder 230 close to the edge of the carrying plate 400 to limit the carrying cylinder 230 from moving away from the center of the carrying plate 400 along the second direction, and the limiting portion 222 abuts against the side of the carrying cylinder 230 away from the limiting wall 223 to limit the carrying cylinder 230 from moving closer to the center of the carrying plate 400 along the second direction, thereby limiting the movement of the carrying cylinder 230 along the second direction, and fixing the position of the carrying cylinder 230 in the second direction relative to the carrying rod 221, thereby stably supporting the carrying plate 400 equipped with the circuit board pressing material 500, and improving the reliability of the circuit board placing device.

[0040] Furthermore, a boss 224 is provided on the bearing rod 221 , and a side wall of the boss 224 close to the bearing tube 230 is configured as a limiting wall 223 .

[0041] Referring to Figures 3 and 4, in one embodiment, the limiting portion 222 includes an end cover 225 and a positioning member 226. The positioning member 226 is passed through the end cover 225 and connected to the bearing rod 221. One side of the end cover 225 is used to abut against the bearing tube 230, and the other side is used to abut against the positioning member 226.

[0042] Specifically, the positioning member 226 is provided through the end cap 225 and is threadedly connected to the bearing rod 221, so that the end cap 225 is stably fixed to one side of the bearing tube 230 to stably limit the bearing tube 230 from coming out relative to the bearing rod 221. In the process of the bearing tube 230 rotating relative to the limiting portion 222, a friction force is applied to the limiting portion 222. The end cap 225 and the positioning member 226 are arranged separately, which reduces the transmission of the friction force of the end cap 225 to the positioning member 226, thereby making the connection between the positioning member 226 and the bearing rod 221 more stable, and improving the reliability of the circuit board placement device. Preferably, the positioning member 226 is a bolt.

[0043] Furthermore, the limiting portion 222 further includes an anti-loosening gasket 227 , which is sleeved on the positioning member 226 and is used to abut against the end cover 225 , so that the positioning member 226 and the bearing rod 221 are firmly locked.

[0044] Referring to Figures 3 and 4, in one embodiment, the limiting portion 222 also includes a slide 228, which is sleeved on the positioning member 226 and arranged between the supporting tube 230 and the end cover 225, so as to reduce the friction between the supporting tube 230 and the end cover 225, and further reduce the transmission of friction between the end cover 225 to the positioning member 226, so that the connection between the positioning member 226 and the supporting rod 221 is more stable.

[0045] Referring to FIG. 3 and FIG. 4 , in one embodiment, the roller shaft 210 further includes a bearing 240, which is sleeved on the carrier 220 and penetrates the carrier tube 230. The carrier tube 230 rotates relative to the carrier 220 via the bearing 240, thereby effectively reducing the resistance encountered by the circuit board carrier plate 400 during the process of entering and exiting the circuit board loading device. Preferably, the bearing 240 is a self-lubricating bearing.

[0046] 1 , 2 and 3 , in one embodiment, the circuit board placement device further includes a fastener 300 , a plurality of spaced-apart mounting holes 110 are provided on the material rack 100 , the fastener 300 passes through the mounting holes 110 and is connected to the carrier 220 to mount the carrier 220 on the material rack 100 .

[0047] Specifically, the fastener 300 is inserted into the mounting hole 110 and is threadedly connected to the bearing rod 221 to stably mount the bearing rod 221 on the material rack 100, thereby facilitating the stable support of the bearing plate 400 with the circuit board pressing material 500 through the bearing cylinder 230. Preferably, the fastener 300 is a bolt.

[0048] 1 , 2 and 3 , in one embodiment, the material rack 100 includes a frame body 120 and side panels 130 . The frame body 120 is provided with side panels 130 on both sides along the second direction, and the mounting holes 110 are provided on the side panels 130 .

[0049] Specifically, the two sides of the frame 120 along the second direction are hollowed out to avoid blocking the carrier plate 400 from sliding in or out along the first direction. The side plate 130 can limit the carrier plate 400 to prevent the carrier plate 400 from sliding out of the rack 100 along the second direction.

[0050] Furthermore, the side plate 130 is provided with a plurality of mounting holes 110 spaced apart along the third direction, so that more rollers 210 can be installed in the third direction to support more carrier plates 400 with circuit board presses 500 in the third direction. The rollers 210 can be arranged on the corresponding mounting holes 110 according to the height of the circuit board presses 500, so as to reduce interference with other carrier plates 400 with circuit board presses 500, so as to adapt to circuit board presses 500 of different heights, and improve the adaptability of the circuit board placement device.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A circuit board placing device, characterized in that: The circuit board placement device comprises a material rack and a support assembly; the support assembly comprises at least two rollers spaced apart along a first direction, the rollers comprise a bearing member and a bearing cylinder, the bearing member is connected to the material rack, and the axis of the bearing member extends along a second direction, the bearing cylinder is sleeved on the bearing member and can rotate relative to the bearing member around the second direction, and the bearing cylinder is used to support the bearing plate; The first direction is parallel to the moving direction of the supporting plate, and the second direction is perpendicular to the first direction.

2. The circuit board placement device according to claim 1, characterized in that: There are at least two groups of the support components, and the at least two groups of the support components are spaced apart along the second direction. The at least two groups of the support components are respectively used to support the two ends of the carrier plate along the second direction.

3. The circuit board placement device according to claim 2, characterized in that: In the second direction, the radial dimension of the carrying tube gradually decreases from the center point of the carrying tube to both sides, and in the direction perpendicular to the second direction, the projection profile of the outer tube wall of the carrying tube is arc-shaped.

4. The circuit board placement device according to claim 2, characterized in that: The supporting tube is provided with chamfers arranged around the circumference on both sides along the second direction.

5. The circuit board placing device according to any one of claims 1 to 4, characterized in that: The bearing member includes a bearing rod and a limiting portion, the bearing tube is sleeved on the bearing rod, the bearing rod is connected to the material rack, and a limiting wall is provided on the bearing rod, the limiting wall is used to abut against the bearing tube, the limiting portion is connected to the bearing rod, and abuts against a side of the bearing tube away from the limiting wall to limit the bearing tube from falling out.

6. The circuit board placement device according to claim 5, characterized in that: The limiting portion includes an end cover and a positioning member, the positioning member is passed through the end cover and connected to the bearing rod, one side of the end cover is used to abut against the bearing tube, and the other side is used to abut against the positioning member.

7. The circuit board placement device according to claim 6, characterized in that: The limiting portion further includes a sliding plate, which is sleeved on the positioning member and arranged between the supporting tube and the end cover.

8. The circuit board placing device according to any one of claims 1 to 4, characterized in that: The roller shaft further comprises a bearing, wherein the bearing is sleeved on the bearing member and penetrates the bearing tube, and the bearing tube rotates relative to the bearing member via the bearing.

9. The circuit board placing device according to any one of claims 1 to 4, characterized in that: The circuit board placement device also includes a fastener. The material rack is provided with a plurality of installation holes arranged at intervals. The fastener passes through the installation holes and is connected to the carrier to install the carrier on the material rack.

10. The circuit board placement device according to claim 9, characterized in that: The material rack includes a frame body and side plates. The side plates are disposed on both sides of the frame body along the second direction, and the mounting holes are disposed on the side plates.

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