A drill bit grinder feeding and discharging conveying mechanism and a drill bit grinder comprising the same

By employing an inclined feeding section and a segmented belt conveyor mechanism in the drill bit grinding machine, automated sliding feeding of the material tray is achieved, solving the problem of complex automated mechanical feeding structures in existing technologies, improving feeding efficiency, reducing costs, and enhancing material buffering capacity.

CN224544001UActive Publication Date: 2026-07-24SUZHOU HEHONG ELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU HEHONG ELECTRONICS TECH CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-24

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Abstract

The utility model discloses a kind of drill needle grinding machine feeding and discharging conveying mechanism and drill needle grinding machine containing it, it is related to PCB manufacturing and processing equipment technical field.The drill needle grinding machine feeding and discharging conveying mechanism includes: feed tank, the feed tank includes first feed section and second feed section being connected with each other, the first feed section is obliquely arranged along vertical direction, the second feed section is horizontally arranged;Grinding groove, the grinding groove is communicated with the second feed section of the feed tank;Discharge tank, the discharge tank is communicated with the grinding groove, wherein, the discharge tank extends along horizontal direction;Transmission belt mechanism, the transmission belt mechanism is horizontally arranged, and it is located in the second feed section, the grinding groove and the lower end of the discharge tank along vertical direction.By using the technology provided by the utility model, equipment complexity can be simplified, and feeding and discharging cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of PCB manufacturing and processing equipment technology, specifically to a drill bit grinding machine loading and unloading conveying mechanism and a drill bit grinding machine including the same. Background Technology

[0002] A PCB drill bit grinding machine is a device used for precision grinding of PCB drill holes, specifically for repairing worn drill bits. Currently, the feeding methods for drill bit grinding machines are mainly divided into manual feeding and automated mechanical feeding. For manual feeding, the inlet and outlet ends of a typical drill bit grinding machine are straight sections, lacking conveyor belts extending to the inlet and outlet troughs. The material tray must be placed manually into the inlet trough, and then manually pushed forward.

[0003] Automated mechanical feeding can be further divided into robotic arm feeding and transfer mechanism feeding. For robotic arm feeding, see the invention patent document (CN104741982A) which discloses a fully automatic PCB drill bit grinding machine. The feeding process of the fully automatic PCB drill bit grinding machine is as follows: an NG area is set in the material tray to store incoming materials, and then the robotic arm's tool-grabbing platform picks up the PCB drill bits to be ground and transfers them to the grinding mechanism. For transfer mechanism feeding, see the Chinese utility model patent document (CN218556458U) which discloses an automated loading and unloading integrated machine for drill bit grinding. It controls the operation of a lifting mechanism to move the substrate to the corresponding height on the material rack, then controls the operation of a pushing mechanism to push the material tray containing the material onto the moving tray. Then, a transfer mechanism sends the material tray from the moving tray into the grinding machine for processing. The grinding machine then returns the ground material tray to the moving tray. The lifting mechanism then moves the moving tray to another layer on the material rack, and the transfer mechanism returns the material tray to the material rack. In summary, the structure of automated mechanical feeding is still relatively complex. Utility Model Content

[0004] This utility model provides a feeding and unloading conveying mechanism for a drill bit grinding machine and a drill bit grinding machine containing the same, in order to solve the problem that the structure of automated mechanical feeding in the prior art is still relatively complex.

[0005] To solve the above-mentioned technical problems, the present invention provides a loading and unloading conveying mechanism for a drill bit grinding machine, the loading and unloading conveying mechanism comprising: The feeding trough includes a first feeding section and a second feeding section connected to each other. The first feeding section is inclined in the vertical direction, and the second feeding section is horizontally arranged. The grinding trough is connected to the second feeding section of the feeding trough. The discharge trough is connected to the grinding trough and extends in the horizontal direction. The conveyor belt mechanism is horizontally arranged and located at the lower end of the second feeding section, the grinding trough, and the discharge trough in the vertical direction.

[0006] The beneficial effects of the technical solution provided by this utility model compared to the prior art are as follows: By setting an inclined first feeding section and a horizontal second feeding section on one side of the feed inlet, the material tray can naturally slide along the first feeding section to the second feeding section under the action of gravity. At the same time, this method increases the trough length compared to the conventional horizontal placement, which means it can accommodate more material trays for storage and improve feeding efficiency. The conveyor belt mechanism is located under the second feeding section, the grinding trough, and the discharge trough to automate the feeding, grinding, and discharging process.

[0007] Furthermore, compared to complex lifting and feeding methods using robotic arms and conveyor mechanisms, this horizontal belt conveyor and oblique feeding method simplifies equipment complexity, reduces interactions between mechanical parts, and lowers loading and unloading costs. Additionally, the discharge chute can be further extended to buffer material at the discharge end.

[0008] In some embodiments, the discharge trough further includes a transparent cover plate, which at least partially covers the discharge trough. By employing the above technical solution, adding a transparent cover plate can prevent external impurities from entering the discharge trough while allowing operators to observe the discharge status within the trough in a timely manner, thus enabling real-time determination of the grinding drill bit's condition.

[0009] In some implementations, the angle between the first feed section and the horizontal direction is 15° to 45°. Using the above technical solution, the first feed section, within this angle range, ensures that the tray slides smoothly and stably from the first feed section to the second feed section.

[0010] In some embodiments, the discharge trough further includes a first discharge section and a second discharge section, wherein the width of the second discharge section is greater than the width of the first discharge section.

[0011] Furthermore, the belt conveyor mechanism also includes a first conveyor section, a second conveyor section, and a third conveyor section, wherein the first conveyor section is located in the second feeding section, the second conveyor section is located in the grinding tank, and the third conveyor section is located in the first discharging section.

[0012] Using the above technical solution, the first discharge trough is connected to the grinding trough, and the second discharge trough serves as a buffer section. The first discharge trough is equipped with a second transmission section to receive the material trays from the grinding trough and continue to transmit them to the second discharge trough. The width difference is set to reserve enough space in the second discharge section for buffering and organizing the material trays, avoiding blockage and collisions with the material trays.

[0013] The belt conveyor mechanism is divided into a first transmission section, a second transmission section, and a third transmission section, so that each transmission section can independently transmit at different speeds. This achieves fully automated transmission of the drill bit from feeding to grinding to discharging, while also adapting to the production rhythm of the current feeding, grinding, and discharging processes.

[0014] In some implementations, the transparent cover of the discharge chute covers the second discharge section. Using this technical solution, the second discharge section serves as a buffer section, and covering it with the transparent cover allows for timely observation of the current number of buffered trays.

[0015] In some implementations, a support frame is also included, wherein the second discharge section of the discharge trough is fixed to the top of the support frame, and the bottom of the support frame is also provided with casters.

[0016] By adopting the above technical solution, a support frame is added to allow for adaptive adjustments to the length of the second discharge section according to actual production needs, such as increasing its length to increase buffer capacity or shortening it to reduce buffer capacity. Casters further facilitate the flexible adjustment and movement of the support frame.

[0017] In some embodiments, this application also provides a drill bit grinding machine, including the above-described drill bit grinding machine loading and unloading conveying mechanism, and further comprising: The frame is provided with the loading and unloading conveying mechanism of the drill bit grinding machine; the grinding mechanism is located on the frame and is disposed on one side of the grinding tank, wherein the grinding mechanism includes a gripping component and a grinding wheel.

[0018] By adopting the above technical solution, the above-mentioned drill bit grinding machine loading and unloading conveying mechanism is installed in the frame housing the grinding mechanism, so that when the drill bit is transmitted to the grinding tank and corresponds to the gripping component of the grinding mechanism, the gripping component can grip the drill bit and grind it with the grinding wheel.

[0019] In some embodiments, the gripping assembly includes a first gripper and a second gripper slidably disposed on a gripping guide rail, wherein the first gripper and the second gripper are movable toward each other along the guide rail, and the first gripper and the second gripper are provided with gripping hooks for gripping a tray.

[0020] By adopting the above technical solution, the first gripper and the second gripper enable the gripping assembly to be adapted to different sizes of material trays, and the gripping hook enables stable movement of the material tray, thus ensuring grinding quality.

[0021] In some embodiments, the grinding mechanism further includes a horizontal transfer component and a vertical transfer component, the horizontal transfer component and the vertical transfer component being slidably coupled, wherein the vertical transfer component is connected to the gripping component.

[0022] By adopting the above technical solution, the horizontal transfer component and the vertical transfer component work together to enable the gripping component to be flexibly transferred in both the horizontal and vertical directions, thereby allowing for corresponding adjustments based on the position of the grinding tank, the material tray, and the grinding requirements of the drill bit. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural diagram of an embodiment of a drill bit grinding machine provided by this utility model. Figure 1 ; Figure 2 This is a three-dimensional structural schematic diagram of an embodiment of the transmission belt mechanism 4 of a drill bit grinding machine provided by this utility model; Figure 3 This is a three-dimensional structural diagram of an embodiment of a drill bit grinding machine provided by this utility model. Figure 2 ; Figure 4 This is a bottom view of an embodiment of a drill bit grinding machine provided by this utility model; Figure 5 This is a partial structural schematic diagram of an embodiment of a drill bit grinding machine provided by this utility model; Figure 6 This is a three-dimensional structural schematic diagram of an embodiment of the gripping mechanism of a drill bit grinding machine provided by this utility model.

[0024] In the picture: 1. Feed chute; 11. First feed section; 12. Second feed section; 2. Grinding chute; 3. Discharge chute; 31. Transparent cover plate; 32. First discharge section; 33. Second discharge section; 4. Conveyor belt mechanism; 41. First transmission section; 42. Second transmission section; 5. Support frame; 51. Casters; 6. Frame; 7. Grinding mechanism; 71. Gripping assembly; 711. First gripper; 712. Second gripper; 713. Gripping hook; 714. Gripping guide rail; 72. Grinding wheel; 73. Horizontal transfer assembly; 74. Vertical transfer assembly. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] For ease of subsequent description, before describing the specific structure of the drill bit grinding machine's loading and unloading conveyor mechanism and the drill bit grinding machine containing it, this application will first combine [the following descriptions]... Figure 1 The horizontal direction (X), vertical direction (Z), and third direction (Y) are defined. The first direction is the length direction of the drill bit grinding machine when it is normally positioned, such as the X direction; the second direction is the height direction of the drill bit grinding machine when it is normally positioned, such as the Z direction. In this application, the first direction (X) and the second direction (Z) are perpendicular to each other. It is understood that the perpendicularity in this application is not absolute; approximate perpendicularity due to processing and assembly errors (e.g., an angle of 89.9° between two structural features) is also within the scope of perpendicularity in this application.

[0027] It is worth noting that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] See Figures 1 to 3 As shown, Figure 1 A three-dimensional structural schematic diagram of an embodiment of a drill bit grinding machine provided in this application is shown. Figure 1 ; Figure 2 This paper shows a three-dimensional structural schematic diagram of an embodiment of the transmission belt mechanism 4 of a drill bit grinding machine provided in this application; Figure 3 A three-dimensional structural schematic diagram of an embodiment of a drill bit grinding machine provided in this application is shown. Figure 2 .

[0029] In some embodiments, the feed conveying mechanism of the drill bit grinding machine includes: a feed trough 1, a grinding trough 2, a discharge trough 3, and a conveyor belt mechanism 4. The feed trough 1 includes a first feed section 11 and a second feed section 12 connected to each other. The first feed section 11 is inclined in the vertical direction, and the second feed section 12 is horizontally arranged. The grinding trough 2 is connected to the second feed section 12 of the feed trough 1. The discharge trough 3 is connected to the grinding trough 2, wherein the discharge trough 3 extends in the horizontal direction. The conveyor belt mechanism 4 is horizontally arranged and located at the lower end of the second feed section 12, the grinding trough 2, and the discharge trough 3 in the vertical direction.

[0030] In this embodiment, by providing an inclined first feeding section 11 and a horizontal second feeding section 12 on one side of the feeding port, the tray can naturally slide along the first feeding section 11 to the second feeding section 12 under the action of gravity. This method also increases the trough length compared to conventional horizontal placement, meaning it can accommodate more trays for storage and improve feeding efficiency. For example, the angle between the first feeding section 11 and the horizontal direction is 15° to 45°; in other words, the angle between the first feeding section 11 and the second feeding section 12 is 135° to 165°. This inclination range ensures that the tray slides smoothly and stably from the first feeding section 11 to the second feeding section 12.

[0031] The conveyor belt mechanism 4 is located below the second feeding section 12, the grinding tank 2, and the discharge tank 3 to automate the feeding, grinding, and discharging process. Figure 2 As shown, the belt conveyor mechanism also includes a first transmission section 41, a second transmission section 42, and a third transmission section. Exemplarily, the first transmission section 41 and the third transmission section are identical. By dividing the belt conveyor mechanism into a first transmission section 41, a second transmission section 42, and a third transmission section, each transmission section can independently transmit at different speeds. This achieves fully automated transmission of the drill bit from feeding to grinding to discharging, while also adapting to the production rhythm of the current feeding, grinding, and discharging processes.

[0032] Furthermore, compared to complex lifting and feeding methods using robotic arms and conveyor mechanisms, this horizontal belt conveyor and oblique feeding method simplifies equipment complexity, reduces interactions between mechanical parts, and lowers loading and unloading costs. Additionally, the discharge chute can be further extended to buffer material at the discharge end.

[0033] In some embodiments, the discharge trough 3 further includes a transparent cover plate 31, which at least partially covers the discharge trough 3. In this embodiment, the addition of the transparent cover plate 31 can prevent external impurities from entering the discharge trough 3 while allowing operators to observe the discharge status within the discharge trough 3 in a timely manner, so as to determine the status of the grinding drill bit in real time. Exemplarily, the transparent cover plate 31 can be an acrylic plate or a glass plate.

[0034] In some implementation schemes, combined Figure 4 As shown, Figure 4 This is a bottom view of an embodiment of a drill bit grinding machine provided in this application. The discharge trough 3 further includes a first discharge section 32 and a second discharge section 33, wherein the width of the second discharge section 33 is greater than the width of the first discharge section 32. Further, a first transmission section 41 is located at the second feed section 12, a second transmission section 42 is located at the grinding trough 2, and a third transmission section is located at the first discharge section 32.

[0035] In this embodiment, the first discharge trough 3 is connected to the grinding trough 2, and the second discharge trough 3 serves as a buffer section. The first discharge trough 3 is provided with a second transmission section 42 to receive the material tray from the grinding trough 2 and continue to transmit it to the second discharge trough 3. The width difference is set to reserve enough space in the second discharge section 33 for buffering and organizing the material tray, so as to avoid clogging and bumping of the material tray.

[0036] In some implementation schemes, the transparent cover plate 31 of the discharge trough 3 is covered by the second discharge section 33. The second discharge section 33 serves as a buffer section. Covering the second discharge section 33 with the transparent cover plate 31 allows for timely observation of the current number of buffered material trays.

[0037] In some implementation schemes, combined Figure 5 As shown, Figure 5 A partial structural schematic diagram of an embodiment of a drill bit grinding machine provided in this application is shown. The loading and unloading conveying mechanism of the drill bit grinding machine also includes a support frame 5, wherein the second discharge section 33 of the discharge trough 3 is fixedly mounted on the top of the support frame 5, and a caster wheel 51 is also provided at the bottom of the support frame 5.

[0038] In this embodiment, a support frame 5 is added to facilitate adaptive adjustment of the length of the second discharge section 33 according to actual production needs, such as increasing its length to increase buffer capacity or shortening it to reduce buffer capacity. The casters 51 further facilitate the flexible adjustment and movement of the support frame 5.

[0039] In some embodiments, this application also provides a drill bit grinding machine, including the above-described drill bit grinding machine loading and unloading conveying mechanism, and further comprising: The frame 6 is equipped with a feed conveyor for the drill bit grinding machine; the grinding mechanism 7 is located on the frame 6 and is set on one side of the grinding tank 2, wherein the grinding mechanism 7 includes a gripping component 71 and a grinding wheel 72.

[0040] In this embodiment, by passing the above-mentioned drill bit grinding machine loading and unloading conveying mechanism through the frame 6 containing the grinding mechanism 7, when the drill bit is transmitted to the grinding tank 2 and corresponds to the gripping component 71 of the grinding mechanism 7, the gripping component 71 can grip the drill bit and grind it with the grinding wheel 72. The drill bit grinding machine has all the technical effects of the above-mentioned drill bit grinding machine loading and unloading conveying mechanism, which will not be elaborated here.

[0041] In some implementation schemes, participants Figure 6 As shown, Figure 6 This illustration shows a perspective structural diagram of an embodiment of the gripping mechanism of a drill bit grinding machine provided in this application. The gripping assembly 71 includes a first gripping member 711 and a second gripping member 712 slidably disposed on a gripping guide rail. The first gripping member 711 and the second gripping member 712 are movable toward each other along the guide rail, and the first gripping member 711 and the second gripping member 712 are provided with gripping hooks 713 for gripping a material tray.

[0042] In this embodiment, the first gripper 711 and the second gripper 712 enable the gripping assembly 71 to be adapted to different sizes of material trays, and the gripping hook 713 enables stable movement of the material tray, ensuring grinding quality.

[0043] In some implementation schemes, combined Figure 3 As shown, the grinding mechanism 7 also includes a horizontal transfer component 73 and a vertical transfer component 74. The horizontal transfer component 73 and the vertical transfer component 74 are slidably coupled, and the vertical transfer component 74 is connected to the gripping component 71. In this embodiment, the cooperation between the horizontal transfer component 73 and the vertical transfer component 74 allows the gripping component 71 to be flexibly transferred in both the horizontal and vertical directions, thereby enabling adjustments based on the positions of the grinding tank 2, the material tray, and the grinding requirements of the drill bit.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, should be included within the protection scope of this utility model.

Claims

1. A feeding and unloading conveying mechanism for a drill bit grinding machine, characterized in that, include: The feeding trough includes a first feeding section and a second feeding section connected to each other. The first feeding section is inclined in the vertical direction, and the second feeding section is horizontal. A grinding tank, wherein the grinding tank is connected to the second feeding section of the feeding tank; A discharge trough, which is connected to the grinding trough, wherein the discharge trough extends in a horizontal direction; A conveyor belt mechanism is arranged horizontally and located vertically at the lower end of the second feed section, the grinding trough, and the discharge trough.

2. The loading and unloading conveying mechanism for the drill bit grinding machine according to claim 1, characterized in that, The discharge trough also includes a transparent cover plate, which at least partially covers the discharge trough.

3. The loading and unloading conveying mechanism for the drill bit grinding machine according to claim 1, characterized in that, The angle between the first feeding section and the horizontal direction is 15° to 45°.

4. The loading and unloading conveying mechanism for the drill bit grinding machine according to claim 1, characterized in that, The discharge trough further includes a first discharge section and a second discharge section, wherein the width of the second discharge section is greater than the width of the first discharge section.

5. The feed conveying mechanism for the drill bit grinding machine according to claim 4, characterized in that, The belt conveyor mechanism further includes a first conveyor section, a second conveyor section, and a third conveyor section. The first conveyor section is located in the second feed section, the second conveyor section is located in the grinding tank, and the third conveyor section is located in the first discharge section.

6. The feed conveying mechanism for the drill bit grinding machine according to claim 2 or 4, characterized in that, The transparent cover plate of the discharge chute is installed over the second discharge section.

7. The loading and unloading conveying mechanism for the drill bit grinding machine according to claim 4, characterized in that, It also includes a support frame, wherein the second discharge section of the discharge trough is fixed to the top of the support frame, and the bottom of the support frame is also provided with casters.

8. A drill bit grinding machine, characterized in that, The drill bit grinding machine loading and unloading conveying mechanism according to any one of claims 1 to 7 further includes: The frame is through which the loading and unloading conveying mechanism of the drill bit grinding machine is installed; A grinding mechanism is located on the frame and disposed on one side of the grinding tank, wherein the grinding mechanism includes a gripping component and a grinding wheel.

9. The drill bit grinding machine according to claim 8, characterized in that, The gripping assembly includes a first gripper and a second gripper that are slidably disposed on a gripping guide rail. The first gripper and the second gripper are capable of moving towards each other along the guide rail, and the first gripper and the second gripper are provided with gripping hooks for gripping the material tray.

10. The drill bit grinding machine according to claim 8, characterized in that, The grinding mechanism further includes a horizontal transfer component and a vertical transfer component, wherein the horizontal transfer component and the vertical transfer component are slidably coupled, and the vertical transfer component is connected to the gripping component.