Conveying roller and conveying device for conveying circuit board prepregs

Abstract

The utility model relates to the technical field of circuit board processing auxiliary equipment, in particular to a conveying roller for conveying circuit board prepregs and a conveying device. A connecting shaft is fixedly arranged on one side face of a roller body, the peripheral face of the roller body is sleeved with a passing roller, a clamping table is formed at the end, away from the roller body, of the connecting shaft, an inserting groove is formed in the side face, away from the connecting shaft, of the roller body, the shape of the inserting groove is matched with that of the clamping table, and therefore the multiple roller bodies can be sequentially spliced through the clamping table and the inserting groove; the multiple sets of buckle assemblies are movably connected into the roller body, when the clamping tables are inserted into the inserting grooves, the buckle assemblies are inserted into the clamping tables, then the clamping tables are fixed into the inserting grooves, the two adjacent roller bodies are relatively fixed, and then the conveying roller with the corresponding length can be spliced according to the width of prepregs; prepregs of different specifications are conveyed, the cost is reduced, splicing is convenient and fast, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of circuit board processing auxiliary equipment technology, and in particular to a conveyor roller for conveying circuit board prepreg. Background Technology

[0002] In the manufacturing process of printed circuit boards (PCBs), the lamination process is a process in which, under vacuum and high temperature and pressure, the epoxy resin on a prepreg melts and solidifies, filling the gaps between the circuit lines. This process tightly bonds one or more inner-layer etched core boards and outer copper foils into a multilayer board. The prepreg is originally a thin plate; in the lamination process, it needs to be transported and loaded, and then transferred to the laminating machine by a robotic arm.

[0003] However, in the workshop production, when mass-producing circuit boards of different batches and models, it is necessary to match the corresponding size of prepreg during the pressing process. The existing production method is to transport the prepreg one by one by the conveyor rollers. The existing conveyor rollers are of fixed length. When the width of the prepreg is greater than the length of the conveyor roller, it is impossible to transport it, or the conveyor roller needs to be replaced to accommodate prepregs of different widths, which increases the cost of manufacturing the conveyor rollers. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a conveyor roller for conveying circuit board prepreg, including a roller body, a connecting shaft fixedly disposed at one end on one side of the roller body, and a guide roller sleeved on the outer peripheral surface of the roller body. A locking platform is formed at the end of the connecting shaft away from the roller body, and a slot is opened on the side of the roller body away from the connecting shaft. A plurality of sets of snap-fit ​​assemblies are movably connected in the roller body, and the locking platform is inserted into the slot so that the snap-fit ​​assemblies are inserted into the locking platform.

[0005] Preferably, several groups of the buckle assemblies are arranged in a ring shape along the axis of the connecting shaft.

[0006] Preferably, the roller body has an installation groove, the buckle assembly includes an elastic element disposed in the installation groove and a buckle block movably disposed in the installation groove, and the outer peripheral surface of the buckle platform has a positioning groove for the buckle block to be inserted.

[0007] Preferably, the edge of the card table end face is formed with a guide surface, and the edge of the card block end face is formed with a bevel that matches the guide surface.

[0008] Preferably, a pull block is provided on the top of the card block, the elastic element is connected to the top surface of the pull block, and the end face of the roller body is provided with an opening for the pull block to extend out.

[0009] Preferably, the connecting shaft is welded and fixed to the roller body.

[0010] As can be seen from the above, the following beneficial effects can be obtained by applying the method provided in this application: By fixing a connecting shaft on one side of the roller body, sleeve a passing roller on the outer circumference of the roller body, forming a locking platform at the end of the connecting shaft away from the roller body, and opening a slot on the side of the roller body away from the connecting shaft, the slot and the locking platform are matched in shape, so that multiple roller bodies can be spliced ​​sequentially through the locking platform and the slot. Several sets of buckle components are movably connected in the roller body. When the locking platform is inserted into the slot, the buckle components are inserted into the locking platform, so that the locking platform is fixed in the slot, realizing that two adjacent roller bodies are relatively fixed. Thus, according to the width of the prepreg, the corresponding length of the conveyor roller can be spliced ​​to meet the needs of transporting and conveying prepreg of different specifications, reducing costs, splicing is convenient and quick, and improving the production efficiency of circuit boards. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only a part of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the conveyor roller structure used for conveying circuit board prepreg in an embodiment of this application;

[0013] Figure 2 This is a cross-sectional view of a conveyor roller used for conveying prepreg on a circuit board, according to an embodiment of this application.

[0014] Figure 3 This is a side view of a conveyor roller used for conveying circuit board prepregs according to an embodiment of this application;

[0015] Figure 4 This is a schematic diagram of the splicing state of the conveyor rollers used to transport the prepreg of the circuit board in an embodiment of this application. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0017] To address the aforementioned technical problems, this embodiment provides a conveyor roller for transporting prepreg sheets of circuit boards, such as... Figure 1-2As shown, the device includes a roller body 10, a connecting shaft 20 fixed at one end to one side of the roller body 10, and a guide roller 30 sleeved on the outer circumference of the roller body 10. A locking platform 21 is formed at the end of the connecting shaft 20 away from the roller body 10, and a slot 11 is provided on the side of the roller body 10 away from the connecting shaft 20. The slot 11 matches the shape of the locking platform 21, so that multiple roller bodies 10 can be sequentially spliced ​​through the locking platform 21 and the slot 11. Several sets of snap-fit ​​components 40 are movably connected inside the roller body 10. When the locking platform 21 is inserted into the slot 11, the snap-fit ​​components 40 are inserted into the locking platform 21, so that the locking platform 21 is fixed in the slot 11, and two adjacent roller bodies 10 are relatively fixed. Thus, according to the width of the prepreg, conveyor rollers of corresponding lengths can be spliced ​​to meet the needs of transporting prepregs of different specifications, reducing costs, making splicing convenient and quick, and improving production efficiency.

[0018] Specifically, such as Figure 3 As shown, several sets of snap-fit ​​components 40 are arranged in a ring around the axis of the connecting shaft 20. For example, in this embodiment, there are four sets of snap-fit ​​components 40, arranged in a ring within the roller body 10. Thus, when the locking platform 21 is inserted into the slot 11, all four sets of snap-fit ​​components 40 are simultaneously inserted into the locking platform 21, improving stability. Furthermore, in some embodiments, such as... Figure 4 As shown, when multiple rollers 10 are spliced ​​together to form a conveyor roller via connecting shafts 20, the connecting shafts 20 at the ends can be connected to a motor, thereby driving the entire conveyor roller to rotate. By setting multiple snap-fit ​​components 40, when one connecting shaft 20 rotates, the roller 10 can drive the connected connecting shaft 20 to rotate. For example, multiple conveyor rollers can be simultaneously set above and below the movement path of the prepreg to achieve the forward conveying of the prepreg. When conveying the prepreg, a guide roller 30 fixedly sleeved on the outer circumference of the roller 10 abuts against the prepreg. Therefore, the guide roller 30 can be made of materials such as plastic to avoid scratching the surface of the prepreg.

[0019] To secure the locking platform 21 within the slot 11, a mounting groove 12 is further provided within the roller body 10. The locking assembly 40 includes an elastic element 42 disposed in the mounting groove 12 and a locking block 41 movably disposed in the mounting groove 12. A positioning groove 22 for the locking block 41 to be inserted is provided on the outer peripheral surface of the locking platform 21. When the locking platform 21 is inserted into the slot 11, the elastic element 42 is compressed under the pressure of the locking block 41. After the locking platform 21 is fully inserted, the end of the locking block 41 is embedded in the positioning groove 22 under the elastic force of the elastic element 42, thereby splicing and fixing the connecting shaft 20 to the roller body 10.

[0020] In the above scheme, the locking block 41 and the slot 11 are rectangular, and the locking block 41 is made of hard alloy steel to prevent the locking block 41 from breaking during rotation. At the same time, the connecting shaft 20 is welded and fixed to the roller body 10 to improve the stability of the structure.

[0021] Furthermore, in the initial state, the card block 41 extends into the slot 11 under the elastic force of the elastic member 42. In order to enable the card platform 21 to be smoothly inserted into the slot 11, a guide surface 23 is formed on the edge of the end face of the card platform 21, and a slope 43 matching the guide surface 23 is formed on the edge of the end face of the card block 41. When the card platform 21 is inserted into the slot 11, the guide surface 23 of the card platform 21 contacts the slope 43, and under the guiding action of the guide surface 23, the card block 41 compresses the elastic member 42, thereby enabling the card platform 21 to smoothly enter the slot 11.

[0022] To facilitate disassembly, a pull block 44 is provided on the top of the locking block 41. An elastic element 42 is connected to the top surface of the pull block 44. An opening is provided on the end face of the roller body 10 for the pull block 44 to extend out. When disassembly is required, multiple pull blocks 44 can be pulled away from the connecting shaft 20 by tools or multiple people operating simultaneously, so that the locking block 41 is disengaged from the positioning groove 22, thereby achieving quick disassembly and improving disassembly and assembly efficiency.

[0023] On the other hand, this embodiment provides a conveying device, including multiple conveying rollers as described above, support frames movably arranged on both sides of the conveying rollers, one end of each conveying roller rotatably mounted on the support frame, and the ends of the multiple conveying rollers linked together by a transmission assembly. Rollers are provided at the bottom of the support frame for sliding, and a drive assembly is provided on the support frame. The drive assembly drives the transmission assembly to rotate the conveying rollers. In some embodiments, the support frames on both sides are rotatably connected to both ends of the conveying rollers via bearing seats. A drive assembly is provided on one side of the support frame. For example, the drive assembly can be a motor. Multiple conveying rollers are arranged sequentially at intervals along the conveying direction of the prepreg. One end of each conveying roller is linked together by a transmission assembly, which can be a combination of sprockets and chains. The motor drives the transmission assembly to rotate, thereby driving each conveying roller to rotate and convey the prepreg. When it is necessary to shorten the length of the conveyor roller, the roller body 10 in the middle position of the conveyor roller is disassembled. Multiple hand-pulled blocks 44 are pulled away from the connecting shaft 20 by tools or multiple people at the same time, so that the locking block 41 is disengaged from the positioning groove 22, thereby realizing the quick disassembly of one or more sections of roller body 10. Then, by driving the support frame on one side to move to the support frame on the other side, the disassembled middle roller body 10 is connected together, so as to facilitate the adjustment of the length of each conveyor roller according to the length of the prepreg, thereby saving the cost of manufacturing the conveyor roller.

[0024] In summary, the solution of this application involves fixing a connecting shaft on one side of the roller body, sleeved with a passing roller on the outer circumference of the roller body, forming a locking platform at the end of the connecting shaft away from the roller body, and opening a slot on the side of the roller body away from the connecting shaft. The slot matches the shape of the locking platform, allowing multiple roller bodies to be sequentially spliced ​​through the locking platform and the slot. Several sets of snap-fit ​​components are movably connected inside the roller body. When the locking platform is inserted into the slot, the snap-fit ​​components are inserted into the locking platform, thereby fixing the locking platform in the slot and achieving relative fixation of two adjacent roller bodies. This allows for the splicing of conveyor rollers of corresponding lengths according to the width of the prepreg, meeting the needs of transporting prepregs of different specifications, reducing costs, facilitating and speeding up splicing, and improving production efficiency.

[0025] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. A conveyor roller for conveying prepreg sheets of circuit boards, characterized in that: The device includes a roller body (10), a connecting shaft (20) fixed at one end to one side of the roller body (10), and a guide roller (30) sleeved on the outer circumferential surface of the roller body (10). A locking platform (21) is formed at one end of the connecting shaft (20) away from the roller body (10). A slot (11) is opened on one side of the roller body (10) away from the connecting shaft (20). Several sets of snap-fit ​​assemblies (40) are movably connected inside the roller body (10). The locking platform (21) is inserted into the slot (11) so that the snap-fit ​​assembly (40) is inserted into the locking platform (21).

2. The conveyor roller for conveying circuit board prepreg according to claim 1, characterized in that: Several sets of the buckle assemblies (40) are arranged in a ring along the axis of the connecting shaft (20).

3. The conveyor roller for conveying circuit board prepreg according to claim 2, characterized in that: The roller body (10) has an installation groove (12) inside. The buckle assembly (40) includes an elastic element (42) disposed in the installation groove (12) and a buckle block (41) movably disposed in the installation groove (12). The outer peripheral surface of the buckle platform (21) has a positioning groove (22) for the buckle block (41) to be inserted.

4. The conveyor roller for conveying circuit board prepreg according to claim 3, characterized in that: The edge of the end face of the card table (21) is formed with a guide surface (23), and the edge of the end face of the card block (41) is formed with a chamfer (43) that matches the guide surface (23).

5. The conveyor roller for conveying circuit board prepreg according to claim 3, characterized in that: A pull block (44) is provided on the top of the card block (41), the elastic element (42) is connected to the top surface of the pull block (44), and the end face of the roller body (10) is provided with an opening for the pull block (44) to extend out.

6. The conveyor roller for conveying circuit board prepreg according to claim 3, characterized in that: The connecting shaft (20) is welded and fixed to the roller body (10).

7. A conveying device, characterized in that: The invention includes a conveyor roller for conveying a circuit board prepreg as described in any one of claims 1-6, wherein a plurality of the conveyor rollers are arranged sequentially along the conveying direction of the prepreg, and further includes a support frame movably disposed on both sides of the conveyor rollers, one end of the plurality of the conveyor rollers being rotatably disposed on the support frame, and the other end of the plurality of the conveyor rollers being linked through a transmission assembly, wherein a drive assembly is disposed on the support frame, and the drive assembly drives the transmission assembly to cause the conveyor rollers to rotate.

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