Die edge grinding device

Abstract

The utility model discloses a mold edge grinding device which comprises a shell, a mounting arm assembled in the shell, a driving shaft, a driving wheel fixedly assembled at the end, away from the mounting arm, of the driving shaft, a motor, an abrasive belt tightening unit, a pair of auxiliary wheel sets symmetrically distributed about the driving shaft, a grinding abrasive belt and a handle. The abrasive belt tightening unit comprises a pair of auxiliary wheels which are symmetrically distributed relative to the driving shaft and are distributed in a triangular shape with the driving shaft, a symmetrical supporting mechanism used for enabling the pair of auxiliary wheels to move towards each other or away from each other relative to the driving shaft, and an elastic mechanism used for increasing the distance between the pair of auxiliary wheels, and the pair of auxiliary wheels and the driving wheel are sleeved with the polishing abrasive belt; an operator holds the handle and enables the pair of auxiliary wheel sets to make contact with the two adjacent faces of the mold correspondingly, at the moment, the whole edge of the mold can be ground only by holding the handle to push the device to slide in the length direction of the edge of the mold, operation is easy and convenient, and the mold can be ground when being placed on the ground.

Description

Technical Field

[0001] This utility model relates to the technical field of mold processing, specifically to a mold edge grinding device. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. A mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the shaping of objects by changing the physical state of the material being molded.

[0003] The edges of the mold, when not polished, can easily scratch operators during handling, installation, and debugging; sharp edges may scratch automated equipment such as robotic arms and conveyor belts, increasing maintenance costs. Moreover, burrs on the edges of the mold can also affect assembly interference and assembly accuracy.

[0004] Chinese patent application CN202420303801.4, entitled "Die Grinding Device," discloses a die grinding device including a grinding mechanism and a base. The base has a rotating disk, and a support frame is located on one side of the base. The grinding mechanism is mounted on the support frame, and a clamping mechanism is located at the upper end of the rotating disk. The clamping mechanism includes a clamping seat mounted on the rotating disk, and four arc-shaped clamping components are movably connected to the clamping seat. The first and second threaded posts on both sides can be manually rotated to adjust the spacing between the arc-shaped plates, thus clamping dies of different shapes. Simultaneously, based on the multiple clamping mechanisms set on the rotating disk, the grinding of the die is completed before moving on to the next die, increasing overall continuity and work efficiency.

[0005] However, the above-mentioned patent still has the following shortcomings. When using the device, an overhead crane is required to lift the mold and transfer it to the rotating platen. The position also needs to be adjusted. Due to the weight of the mold, it is inconvenient to transfer and adjust the position. After grinding, an overhead crane is required to remove the ground mold from the rotating platen for protection, which increases the time required for grinding the mold edge. Therefore, a mold edge grinding device needs to be designed. Utility Model Content

[0006] To address the aforementioned technical problems, the purpose of this utility model is to overcome the time-consuming issue in the prior art where a crane is needed to reposition the mold when grinding the mold edges.

[0007] To achieve the above objectives, this utility model provides a mold edge grinding device, comprising: a housing, a mounting arm assembled inside the housing, a drive shaft perpendicular to the mounting arm and mounted on the end of the mounting arm via a first bearing, a drive wheel fixedly mounted on the drive shaft away from the end of the mounting arm, a motor assembled inside the housing and whose output shaft is connected to the drive shaft, a sanding belt tensioning unit mounted on the mounting arm, a pair of auxiliary wheel sets symmetrically distributed about the drive shaft and capable of sliding on two surfaces adjacent to the mold respectively, a sanding belt, and a handle assembled on the top of the housing;

[0008] The sanding belt tensioning unit includes a pair of auxiliary wheels symmetrically distributed about the drive shaft and arranged in a triangular shape with respect to the drive shaft, a symmetrical support mechanism mounted on the mounting arm for moving the pair of auxiliary wheels toward or away from each other about the drive shaft, and an elastic mechanism for increasing the distance between the pair of auxiliary wheels. The sanding belt is sleeved on the pair of auxiliary wheels and the drive wheel.

[0009] Preferably, the support mechanism includes a pair of rotating arms and a synchronization mechanism mounted on the mounting arm and connected to the pair of rotating arms;

[0010] One end of each swing arm is mounted on the drive shaft via a second bearing, and the other end of each swing arm is mounted on an auxiliary shaft parallel to the drive shaft via a third bearing. The auxiliary wheel is fixedly sleeved on the corresponding auxiliary shaft.

[0011] Preferably, the elastic mechanism includes a pair of mounting bolts respectively mounted on a pair of rotating arms, a pair of connectors respectively rotatably mounted on the pair of mounting bolts, a limiting bolt that slides through the pair of connectors, a first nut threaded onto the end of the limiting bolt, and a spring sleeved on the limiting bolt and with its two ends respectively abutting against the pair of connectors.

[0012] Preferably, the rotating arm has a first strip-shaped through groove of the same length, the mounting bolt includes a bolt body and a second nut, the outer wall of the bolt body has a protruding part that can contact the rotating arm, the end of the bolt body away from the connector has a protruding threaded part that slides through the first strip-shaped through groove, and the second nut is threadedly assembled on the end of the threaded part.

[0013] Preferably, the middle part of the rotating arm is fixedly connected to an extension portion perpendicular to the length direction, and a second strip-shaped through groove of the same length direction is provided through the mounting arm;

[0014] The synchronization mechanism includes a guide bolt that is slidably connected to the second strip groove and a pair of connecting rods that are both hinged to the guide bolt. The ends of the pair of connecting rods away from the guide bolt are respectively hinged to the extensions on a pair of rotating arms.

[0015] Preferably, the motor is connected to the drive shaft via a pair of meshing bevel gears.

[0016] Preferably, the auxiliary wheel assembly includes a mounting bracket fixedly mounted on the housing and a plurality of support pulleys spaced apart along the axis of the drive shaft.

[0017] According to the above technical solution, the mold edge grinding device provided by this utility model has the following beneficial effects during use:

[0018] Firstly, when the edge of the mold needs to be polished, the operator holds the handle and places a pair of auxiliary wheels in contact with two adjacent surfaces of the mold. At this time, the operator only needs to hold the handle and push the device to slide along the length of the mold edge to polish the entire edge of the mold. The operation is simple and convenient, and there is no need to use an overhead crane to lift the mold to the polishing table for polishing. The mold can be polished when it is on the ground.

[0019] Secondly, during the grinding process, the edge of the mold will squeeze the grinding belt, which will reduce the distance between the two auxiliary wheels and further compress the elastic mechanism. At this time, the friction between the drive wheel and the grinding belt will increase further, which is more conducive to moving the grinding belt.

[0020] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of a mold edge grinding device provided in this utility model;

[0023] Figure 2 This is a partial three-dimensional structural diagram of a mold edge grinding device provided in this utility model. Figure 1 ;

[0024] Figure 3 This is a partial three-dimensional structural diagram of a mold edge grinding device provided in this utility model. Figure 2 ;

[0025] Figure 4 This is a partial three-dimensional structural diagram of a mold edge grinding device provided in this utility model. Figure 3 .

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Housing; 2. Mounting arm; 3. Drive shaft; 4. Drive wheel; 5. Motor; 6. Grinding belt; 7. Handle; 8. Auxiliary wheel; 9. Rotating arm; 10. Mounting bolt; 11. Connecting piece; 12. Limiting bolt; 13. First nut; 14. Spring; 15. First through slot; 16. Extension; 17. Second through slot; 18. Guide bolt; 19. Connecting rod; 20. Bevel gear; 21. Mounting bracket; 22. Support pulley. Detailed Implementation

[0028] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0029] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "inner," and "outer" included in the terminology only represent the orientation of the term in its normal use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0030] like Figure 1-4 As shown, a mold edge grinding device includes: a housing 1, a mounting arm 2 assembled inside the housing 1, a drive shaft 3 perpendicular to the mounting arm 2 and mounted to the end of the mounting arm 2 via a first bearing, a drive wheel 4 fixedly mounted on the end of the drive shaft 3 away from the mounting arm 2, a motor 5 assembled inside the housing 1 and whose output shaft is connected to the drive shaft 3, a sanding belt tensioning unit mounted on the mounting arm 2, a pair of auxiliary wheel sets symmetrically distributed about the drive shaft 3 and capable of sliding on two surfaces adjacent to the mold respectively, a sanding belt 6, and a handle 7 assembled on the top of the housing 1;

[0031] The sanding belt tensioning unit includes a pair of auxiliary wheels 8 symmetrically distributed about the drive shaft 3 and arranged in a triangular shape with respect to the drive shaft 3, a symmetrical support mechanism mounted on the mounting arm 2 for moving the pair of auxiliary wheels 8 towards or away from each other about the drive shaft 3, and an elastic mechanism for increasing the distance between the pair of auxiliary wheels 8. The sanding belt 6 is sleeved on the pair of auxiliary wheels 8 and the drive wheel 4.

[0032] In the above technical solution, when the edge of the mold needs to be polished, the operator holds the handle 7 and contacts a pair of auxiliary wheels with two adjacent surfaces of the mold. At this time, the polishing belt 6 can contact the edge of the mold. The motor 5 drives the drive shaft 3 to rotate, which in turn drives the drive wheel 4 to rotate, which in turn drives the polishing belt 6 to rotate and polish the edge of the mold. At this time, simply holding the handle 7 and pushing the device along the length of the mold edge will polish the entire edge of the mold. The operation is simple and convenient. There is no need to use an overhead crane to lift the mold to the polishing table for polishing. The mold can be polished when it is on the ground.

[0033] During the polishing process, the edge of the mold will squeeze the polishing belt 6, which will cause the distance between the two auxiliary wheels 8 to decrease, further compressing the elastic mechanism. At this time, the friction between the drive wheel 4 and the polishing belt 6 will increase further, which is more conducive to moving the polishing belt 6.

[0034] Both drive wheel 4 and auxiliary wheel 8 can adopt a hollow structure to reduce the overall weight.

[0035] In a preferred embodiment of the present invention, the support mechanism includes a pair of rotating arms 9 and a synchronization mechanism mounted on the mounting arm 2 and connected to the pair of rotating arms 9.

[0036] One end of each rotating arm 9 is mounted on the drive shaft 3 via a second bearing, and the other end of each rotating arm 9 is mounted on an auxiliary shaft parallel to the drive shaft 3 via a third bearing. The auxiliary wheel 8 is fixedly sleeved on the corresponding auxiliary shaft.

[0037] In the above technical solution, when the grinding is performed, when both auxiliary wheel sets are in contact with the mold, the edge of the mold will squeeze the grinding belt 6, and the grinding belt 6 will drive the gap between the pair of auxiliary wheels 8 to decrease, and drive the ends of the pair of rotating arms 9 away from the drive shaft 3 to rotate closer to each other. The function of the synchronization mechanism is to control the pair of rotating arms 9 to rotate synchronously at the same angle.

[0038] In a preferred embodiment of the present invention, the elastic mechanism includes a pair of mounting bolts 10 respectively mounted on a pair of rotating arms 9, a pair of connecting members 11 respectively rotatably mounted on the pair of mounting bolts 10, a limiting bolt 12 that slides through the pair of connecting members 11, a first nut 13 threadedly mounted on the end of the limiting bolt 12, and a spring 14 sleeved on the limiting bolt 12 and whose two ends respectively abut against the pair of connecting members 11.

[0039] In the above technical solution, the two ends of the spring 14 apply pressure to a pair of connecting members 11, pushing the ends of a pair of rotating arms 9 away from the drive shaft 3 to move away from each other, thereby tightening the sanding belt 6.

[0040] In a preferred embodiment of the present invention, a first strip-shaped through groove 15 of the same length is provided through the rotating arm 9, the mounting bolt 10 includes a bolt body and a second nut, a protruding part that can contact the rotating arm 9 is provided on the outer wall of the bolt body, and a threaded part that slides through the first strip-shaped through groove 15 is provided at the end of the bolt body away from the connector 11, and the second nut is threadedly assembled on the end of the threaded part.

[0041] In the above technical solution, when the pair of rotating arms 9 are stationary, the second nut is loosened, and the screw part can slide in the first strip groove 15 to adjust the position of the mounting bolt 10, thereby adjusting the position of the connecting piece 11. After the adjustment is completed, the second nut is tightened.

[0042] When the connector 11 moves closer to the drive shaft 3, the distance between the two connectors 11 decreases, the compression of the spring 14 increases, and the tension of the abrasive belt 6 is greater; when the connector 11 moves away from the drive shaft 3, the distance between the two connectors 11 is greater, the compression of the spring 14 is less, and the tension of the abrasive belt 6 decreases. The tension of the abrasive belt 6 can be adjusted according to actual usage requirements by adjusting the position of the mounting bolt 10.

[0043] In a preferred embodiment of the present invention, the middle part of the rotating arm 9 is fixedly connected to an extension portion 16 perpendicular to the length direction, and the mounting arm 2 is provided with a second strip-shaped through groove 17 of the same length direction.

[0044] The synchronization mechanism includes a guide bolt 18 slidably connected to the second strip groove 17 and a pair of connecting rods 19 both hinged to the guide bolt 18. The ends of the pair of connecting rods 19 away from the guide bolt 18 are respectively hinged to the extensions 16 on a pair of rotating arms 9.

[0045] In the above technical solution, since the guide bolt 18 can only slide within the second strip groove 17, the connecting rod 19 can move synchronously, so that a pair of rotating arms 9 can rotate synchronously towards or away from each other.

[0046] In a preferred embodiment of this utility model, the motor 5 is connected to the drive shaft 3 via a pair of meshing bevel teeth 20.

[0047] In a preferred embodiment of the present invention, the auxiliary wheel set includes a mounting bracket 21 fixedly mounted on the housing 1 and a plurality of support pulleys 22 spaced apart along the axis of the drive shaft 3.

[0048] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0049] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0050] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A mold edging device characterized by, include: The housing (1), the mounting arm (2) assembled inside the housing (1), the drive shaft (3) perpendicular to the mounting arm (2) and mounted on the end of the mounting arm (2) via a first bearing, the drive wheel (4) fixedly mounted on the end of the drive shaft (3) away from the mounting arm (2), the motor (5) assembled inside the housing (1) and whose output shaft is connected to the drive shaft (3), the sanding belt tensioning unit mounted on the mounting arm (2), a pair of auxiliary wheel sets symmetrically distributed about the drive shaft (3) and capable of sliding on the two surfaces adjacent to the mold respectively, the sanding belt (6), and the handle (7) mounted on the top of the housing (1); The sanding belt tensioning unit includes a pair of auxiliary wheels (8) symmetrically distributed about the drive shaft (3) and arranged in a triangular shape with respect to the drive shaft (3), a symmetrical support mechanism mounted on the mounting arm (2) for moving the pair of auxiliary wheels (8) towards or away from the drive shaft (3), and an elastic mechanism for increasing the distance between the pair of auxiliary wheels (8). The sanding belt (6) is sleeved on the pair of auxiliary wheels (8) and the drive wheel (4).

2. An edging apparatus as claimed in claim 1, wherein The support mechanism includes a pair of rotating arms (9) and a synchronization mechanism mounted on the mounting arm (2) and connected to the pair of rotating arms (9); One end of each rotating arm (9) is mounted on the drive shaft (3) via a second bearing, and the other end of each rotating arm (9) is mounted on an auxiliary shaft parallel to the drive shaft (3) via a third bearing. The auxiliary wheel (8) is fixedly sleeved on the corresponding auxiliary shaft.

3. An edging apparatus as claimed in claim 2, wherein The elastic mechanism includes a pair of mounting bolts (10) respectively mounted on a pair of rotating arms (9), a pair of connectors (11) respectively rotatably mounted on a pair of mounting bolts (10), a limiting bolt (12) that slides through a pair of connectors (11), a first nut (13) threadedly mounted on the end of the limiting bolt (12), and a spring (14) sleeved on the limiting bolt (12) and whose two ends respectively abut against a pair of connectors (11).

4. An edging apparatus as claimed in claim 3, wherein The rotating arm (9) is provided with a first strip-shaped through groove (15) of the same length. The mounting bolt (10) includes a bolt body and a second nut. The outer wall of the bolt body is provided with a protruding part that can contact the rotating arm (9). The end of the bolt body away from the connector (11) is provided with a threaded part that slides through the first strip-shaped through groove (15). The second nut is threadedly assembled on the end of the threaded part.

5. An edging apparatus as claimed in claim 2, wherein The middle part of the rotating arm (9) is fixedly connected to an extension (16) perpendicular to the length direction, and a second strip-shaped through groove (17) of the same length direction is provided through the mounting arm (2). The synchronization mechanism includes a guide bolt (18) slidably connected to the second strip groove (17) and a pair of connecting rods (19) both hinged to the guide bolt (18). The ends of the pair of connecting rods (19) away from the guide bolt (18) are respectively hinged to the extensions (16) on a pair of rotating arms (9).

6. An edging apparatus as claimed in claim 1, wherein The motor (5) is connected to the drive shaft (3) via a pair of meshing bevel gears (20).

7. An edging apparatus as claimed in claim 1, wherein The auxiliary wheel set comprises a mounting support (21) fixedly assembled on the shell (1) and a plurality of support pulleys (22) arranged at intervals along the axis direction of the driving shaft (3).

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