A drying rack

Abstract

This utility model discloses a drying rack, including a base, multiple layers of support nets, and multiple sets of elastic elements. A support frame is provided at the rear end of the base. The support nets have a mesh structure and are used to support materials. The mesh structure of the support nets allows both the upper and lower surfaces of the materials to have sufficient contact with the air. The multiple layers of support nets are distributed sequentially from top to bottom. The rear end of each layer of support nets is hinged to the support frame, and the front end of each layer of support nets is provided with a support leg. The support leg of the lowest layer of support nets is used to abut against the front end of the base, and the support leg of the upper layer of support nets is used to abut against the lower layer of support nets. One end of each set of elastic elements is connected to the multiple layers of support nets, and the other end of each set of elastic elements is connected to the support frame, so that the front end of each layer of support nets is tilted upwards. Any support net can be pressed down and placed horizontally to allow material to be loaded or unloaded onto any support net. External force can be used to drive the support nets to a horizontal state, while the support nets above them remain tilted, facilitating the loading or unloading of materials onto those support nets.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board technology, and in particular to a drying rack. Background Technology

[0002] In the manufacturing process of printed circuit boards (PCBs), drying equipment is frequently used to bake materials such as substrates and PP boards to facilitate subsequent processing and improve product yield. Currently, the drying racks of dryers are typically trays or shelves. A tray refers to a drying machine with multiple layers of chute, with multiple trays sliding on the chute. A shelf refers to a support frame with multiple layers of vertically distributed support mesh / trays. While the structure of trays and shelves is simple, they are not conducive to the loading and unloading of materials, resulting in numerous and time-consuming steps, thus affecting the production efficiency of PCBs. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a drying rack that enables convenient and quick loading and unloading of materials.

[0004] A drying rack according to an embodiment of the present invention includes a base, multiple layers of support nets, and multiple sets of elastic members. A support frame is provided at the rear end of the base. The support nets have a mesh structure and are used to support materials. The mesh structure of the support nets allows both the upper and lower surfaces of the materials to fully contact the air. The multiple layers of support nets are distributed sequentially from top to bottom. The rear end of each layer of support nets is hinged to the support frame, and the front end of each layer of support nets is provided with a support leg. The support leg of the lowest layer of support nets is used to abut against the front end of the base, and the support leg of the upper layer of support nets is used to abut against the lower layer of support nets. One end of each set of elastic members is connected to the multiple layers of support nets, and the other end of each set of elastic members is connected to the support frame, so that the front ends of the multiple layers of support nets are tilted upwards, and any one of the support nets can be pressed down and placed horizontally to allow material to be loaded onto any one of the support nets.

[0005] It has at least the following beneficial effects:

[0006] When feeding materials into the drying rack, start with the lowest layer of trays. Press down the front end of the lowest tray so that its support legs rest against the front end of the base. The elastic element connected to the lowest tray is stretched, making the lowest tray horizontal. Since the front ends of the other trays are tilted upwards, materials can be easily and quickly placed on the lowest tray. Then, press down the front end of the second tray from the bottom up so that its support legs rest against the front end of the lowest tray. The elastic element connected to the second tray is stretched, making the second tray horizontal. Since the front ends of the other trays are tilted upwards, materials can be quickly placed on the second tray. This process can be repeated to feed materials onto all trays sequentially from bottom to top. When it's time to unload materials from the drying rack, the material on the topmost support mesh is removed. At this point, the elastic element connected to the topmost support mesh contracts and resets, causing the topmost support mesh to tilt upwards again. The topmost support mesh then moves away from directly above the second-highest support mesh, allowing the material on that mesh to be removed. This process is repeated for all support meshes from top to bottom. The drying rack allows for orderly, convenient, and quick loading and unloading of materials.

[0007] According to some embodiments of the present invention, the tilt angle of the support net is greater than or equal to 30°.

[0008] According to some embodiments of the present invention, the first layer of the support net has a rotation axis, one end of a set of elastic members is connected to the rear end of the first layer of the support net, and the other end of the set of elastic members is connected to a region on the support frame that is higher than the corresponding rotation axis.

[0009] According to some embodiments of the present invention, the support frame includes two support columns, and the set of elastic elements includes two springs. One end of the two springs is connected to the left and right ends of the support net, and the other end of the two springs is connected to the two support columns.

[0010] According to some embodiments of the present invention, pins are provided on both the left and right sides of the rear end of the support net, and pin holes are provided on both of the two support columns, with the two pins respectively passing through the two pin holes.

[0011] According to some embodiments of the present invention, the other end of one set of elastic elements is connected to the support frame via an adapter.

[0012] According to some embodiments of this utility model, the adapter is columnar, one end of the adapter is connected to the support frame, the other end of the adapter is provided with a hanging hole, the support net is provided with a hanging ear, the elastic element is a spring, one end of the spring is hooked on the hanging ear, and the other end of the spring is hooked on the inner wall of the hanging hole.

[0013] According to some embodiments of the present invention, pads are provided on both the left and right sides of the upper surface of the support net, and the support net is connected to the support legs in the areas corresponding to the two pads.

[0014] According to some embodiments of this utility model, the support leg is tubular.

[0015] According to some embodiments of the present invention, the bottom of the base is provided with multiple casters.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 This is a side view of an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the support net and elastic element in an embodiment of this utility model;

[0021] Icon labels:

[0022] Base 100, support frame 110, casters 120;

[0023] Net support 200, support legs 210, pads 220;

[0024] Elastic element 300;

[0025] Adapter 400. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 3 This utility model discloses a drying rack, including a base 100, a multi-layer support net 200 and multiple sets of elastic elements 300. The rear end of the base 100 is provided with a support frame 110. The support net 200 has a mesh structure and is used to support materials. The mesh structure of the support net 200 allows the upper and lower surfaces of the materials to fully contact the air. The multi-layer support nets 200 are distributed sequentially from top to bottom. The rear end of each layer of support nets 200 is hinged to the support frame 110, and the front end of each layer of support nets 200 is provided with a support leg 210. The support leg 210 of the bottom layer of support nets 200 is used to abut against the front end of the base 100, and the support leg 210 of the upper layer of support nets 200 is used to abut against the lower layer of support nets 200. One end of multiple sets of elastic elements 300 is connected to the multi-layer support nets 200, and the other end of multiple sets of elastic elements 300 is connected to the support frame 110, so that the front end of the multi-layer support nets 200 is tilted upward, and any support net 200 can be pressed down and is in a horizontal state, so as to load and unload materials onto any support net 200.

[0030] Initially or in its natural state, under the action of the elastic element 300, the front ends of all the support nets 200 are tilted upwards, presenting a retracted state. This makes the drying rack easy to move and store. When material needs to be loaded onto the drying rack, it can be started from the lowest support net 200. The front end of the lowest support net 200 is pressed down, causing the support legs 210 of the lowest support net 200 to rest against the front end of the base 100. The elastic element 300 connected to the lowest support net 200 is stretched, making the lowest support net 200 horizontal. Since the front ends of the other support nets 200 are tilted upwards at this time, material can be easily and quickly placed on the lowest support net 200. The front end of the second-position support net 200 is pressed down from bottom to top, so that the support leg 210 of the second-position support net 200 abuts against the front end of the bottom support net 200. The elastic element 300 connected to the second-position support net 200 is stretched, so that the second-position support net 200 is in a horizontal state. Since the front ends of the other support nets 200 are tilted upward at this time, the material can be quickly placed on the second-position support net 200. In this way, all the support nets 200 can be loaded with material in sequence from bottom to top. When it is time to unload materials from the drying rack, the material on the topmost support net 200 is removed. At this time, the elastic element 300 connected to the topmost support net 200 contracts to return to its original position, causing the topmost support net 200 to tilt upwards again. The topmost support net 200 is then removed from directly above the second highest support net 200, allowing the material on the second highest support net 200 to be removed. This process can be repeated from top to bottom, allowing materials to be loaded and unloaded from the drying rack in an orderly, convenient, and quick manner.

[0031] In operation, one hand can be used to press down on the support net 200 while the other hand is used to load or remove material from it. Once material is placed on the support net 200, it remains horizontal under its own weight. To prevent the front end of the support net 200 from swinging upwards and resetting, a counterweight can be used to press down on it or a rope can be used to secure it. After the material is removed, the elastic element 300 connected to the support net 200 releases energy and contracts. This helps to drive the front end of the support net 200 to swing upwards, accelerating its resetting.

[0032] Reference Figure 1 or Figure 2 In some embodiments, the base 100 is provided with a plurality of casters 120 at its bottom, the drying rack is placed on the ground and moved on the ground by means of the casters 120, and the drying rack is placed in the drying chamber of the drying equipment by means of the casters 120, and the casters 120 are provided to facilitate the movement of the drying rack.

[0033] In this embodiment, there are four casters 120, which are located at the four corners of the base 100. The casters 120 can be omnidirectional wheels with a self-locking function.

[0034] The optimal state of the elastic element 300 is that when the support net 200 is horizontal and there is no material on it, the elastic element 300 tends to drive the front end of the support net 200 to tilt upwards, but the elastic element 300 cannot drive the front end of the support net 200 to tilt upwards automatically. When the front end of the support net 200 tilts upwards, the elastic element 300 can keep the front end of the support net 200 tilted upwards, thus preventing the front end of the support net 200 from accidentally swinging downwards.

[0035] Due to accidental collisions with external equipment or malfunctions of the elastic element 300, there is a risk that the front end of the horizontally positioned support net 200 may accidentally swing upwards. It is conceivable that an anti-fall net is connected to the support frame 110, located behind the multi-layered support net 200. When the front end of the support net 200 accidentally swings upwards, the anti-fall net can prevent the material on the support net 200 from falling backwards, thus protecting the material.

[0036] Reference Figure 2 In some embodiments, the tilt angle of the support net 200 is greater than or equal to 30°. When one support net 200 is in a horizontal state, the front end of the support net 200 above the one support net 200 tilts upward, so that the upper part of the one support net 200 has a loading and unloading space that gradually decreases from front to back. This loading and unloading space facilitates placing materials on the support net 200 or removing materials from the support net 200.

[0037] Understandably, the larger the tilt angle of the support net 200, the larger the loading and unloading space, which is more conducive to placing materials on the support net 200 or removing materials from the support net 200. However, this also requires reaching out to operate the tilted support net 200 and places higher demands on the elastic element 300. Therefore, the tilt angle of the support net 200 is generally less than 70°. In this embodiment, the tilt angle of the support net 200 is 50°.

[0038] In some embodiments, a layer of netting 200 has a rotation axis, one end of a set of elastic members 300 is connected to the rear end of the layer of netting 200, and the other end of the set of elastic members 300 is connected to an area on the support frame 110 above the corresponding rotation axis, so that when the elastic members 300 pull the netting 200, the netting 200 is subjected to an upward swinging component force, thereby causing the front end of the netting 200 to tilt upward.

[0039] Reference Figure 1 or Figure 2In some embodiments, the support frame 110 includes two support columns, and a set of elastic elements 300 includes two springs. One end of the two springs is connected to the left and right ends of the net 200, respectively, and the other end of the two springs is connected to the two support columns, so that the left and right ends of the net 200 are balanced by forces.

[0040] In some embodiments, pins are provided on both the left and right sides of the rear end of the support net 200, and pin holes are provided on both support columns. The two pins pass through the two pin holes respectively, allowing the front end of the support net 200 to swing upwards or downwards without detaching from the two support columns. It is understood that the two pins are made of the same columnar rod.

[0041] In some embodiments, the other end of a set of elastic elements 300 is connected to the support frame 110 via an adapter 400, avoiding the direct connection of the other end of the set of elastic elements 300 to the support frame 110. The adapter 400 facilitates the installation and replacement of the elastic elements 300.

[0042] In some embodiments, the adapter 400 is cylindrical, with one end connected to the support frame 110, such as by welding or threaded connection, so that the adapter 400 is stable on the support frame 110. The other end of the adapter 400 is provided with a hanging hole, and the net 200 is provided with a hanging ear. The elastic element 300 is a spring, with one end of the spring hooked on the hanging ear and the other end of the spring hooked on the inner wall of the hanging hole, which facilitates the installation and removal of the spring.

[0043] Understandably, the support frame 110 includes two support columns, both with L-shaped cross-sections and two facing sides. Two pin holes are located on these two facing sides. The rear end of the netting 200 has two pins, each passing through one of the two pin holes. A set of elastic elements 300 includes two springs. Both ends of the netting 200 have hanging ears. Each support column has a connecting piece 400 at the same height. All connecting pieces 400 have hanging holes. One end of each spring hooks onto the two hanging ears on the netting 200, and the other end hooks onto the two connecting pieces 400 at the same height through the hanging holes. Both support columns are made of angle steel and are connected together by several connecting rods.

[0044] Reference Figure 1 or Figure 3In some embodiments, pads 220 are provided on both the left and right sides of the front end of the upper surface of the net 200, and the net 200 is connected to the support legs 210 in the area corresponding to the two pads 220, so that when the net 200 is in a horizontal state, the two support legs 210 of the upper net 200 rest on the two pads 220 of the lower net 200 respectively.

[0045] The two pads 220 on the support net 200 are respectively located on the front right corner and the front left corner of the pad 220.

[0046] In some of these embodiments, the leg 210 is tubular and is made of a common material that is easy to process, lightweight, and inexpensive.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0048] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A drying rack, characterized in that, include: The base (100) has a support frame (110) at the rear. A multi-layer support net (200) is provided, with the multi-layer support net (200) distributed sequentially from top to bottom. The rear end of each layer of support net (200) is hinged to the support frame (110), and the front end of each layer of support net (200) is provided with a support leg (210). The support leg (210) of the bottom layer of support net (200) is used to abut against the front end of the base (100), and the support leg (210) of the upper layer of support net (200) is used to abut against the lower layer of support net (200). Multiple sets of elastic elements (300) are provided, one end of which is connected to the multi-layer support net (200), and the other end of which is connected to the support frame (110) so that the front end of the multi-layer support net (200) is tilted upward, and any support net (200) can be pressed down and placed in a horizontal state to feed materials onto any support net (200).

2. A drying rack according to claim 1, characterized in that, The tilt angle of the support net (200) is greater than or equal to 30°.

3. A drying rack according to claim 1 or 2, characterized in that, The first layer of the support net (200) has a rotation axis, one end of a set of elastic elements (300) is connected to the rear end of the first layer of the support net (200), and the other end of the set of elastic elements (300) is connected to a region on the support frame (110) above the corresponding rotation axis.

4. A drying rack according to claim 1 or 2, characterized in that, The support frame (110) includes two support columns, and a set of elastic elements (300) includes two springs. One end of each spring is connected to the left and right ends of the support net (200), and the other end of each spring is connected to the two support columns.

5. A drying rack according to claim 4, characterized in that, The rear end of the support net (200) is provided with pins on both the left and right sides, and the two support columns are provided with pin holes. The two pins are respectively inserted into the two pin holes.

6. A drying rack according to claim 1, characterized in that, The other end of one set of elastic elements (300) is connected to the support frame (110) via an adapter (400).

7. A drying rack according to claim 6, characterized in that, The adapter (400) is columnar, one end of the adapter (400) is connected to the support frame (110), and the other end of the adapter (400) is provided with a hanging hole. The net (200) is provided with a hanging ear. The elastic element (300) is a spring, one end of the spring is hooked on the hanging ear, and the other end of the spring is hooked on the inner wall of the hanging hole.

8. A drying rack according to claim 1, characterized in that, The upper surface of the support net (200) is provided with pads (220) on both the left and right sides, and the support net (200) is connected to the support legs (210) in the areas corresponding to the two pads (220).

9. A drying rack according to claim 1 or 8, characterized in that, The support leg (210) is tubular.

10. A drying rack according to claim 1, characterized in that, The base (100) is equipped with multiple casters (120) at its bottom.

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