Centerless grinding machine for producing mold

Abstract

The utility model discloses a centerless grinding machine for mould production, which belongs to the technical field of centerless grinding machines for mould production and comprises a machine tool, a fixing seat is mounted on one side of the top of the machine tool, a first casing is connected onto the fixing seat, a spraying mechanism is mounted on one side, far away from the first casing, of the fixing seat, and a stabilizing mechanism is fixed on the outer side of the spraying mechanism. And a cleaning mechanism is mounted in the stabilizing mechanism. By arranging the stabilizing mechanism, a worker can rotate an adjusting lead screw on a supporting plate according to the size of a workpiece in the polishing process of the workpiece, so that the adjusting lead screw drives a pressing plate and a guide rod to move along the supporting plate until the bottom end of the pressing plate abuts against the top of the workpiece, and the workpiece can be limited through the pressing plate in the polishing process; and in the limiting process, the rolling shaft at the bottom end of the pressing plate makes contact with the workpiece, normal rotation of the workpiece can be guaranteed, the stability of the workpiece is improved, and therefore the grinding quality of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centerless grinders for mold production, in particular to a centerless grinder for mold production. Background Art

[0002] Moulds are various molds and tools used in industrial production to obtain the required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods.

[0003] During the mold production process, a centerless grinder is required to be used for processing. A centerless grinder is a type of grinder that does not require the axis positioning of the workpiece for grinding. It is mainly composed of three mechanisms: a grinding wheel, an adjusting wheel, and a workpiece holder. The grinding wheel is actually responsible for grinding, the adjusting wheel controls the rotation of the workpiece and the feed speed of the workpiece, and the workpiece holder supports the workpiece during grinding.

[0004] Chinese patent publication number CN219485120U discloses a centerless grinder that can quickly and effectively screen and collect coolant and grinding debris. The screening and collection effects are good, the structure is relatively simple, and the practicability of the centerless grinder is improved.

[0005] However, compared with the existing technology and comparative documents, during the use of the existing centerless grinder, the workpiece is bent in its original shape or the outer circle of the workpiece is angular or out of round before grinding. However, the positioning reference of the centerless grinder is the outer circle of the grinding workpiece itself, unlike the cylindrical grinder which is positioned by the center hole. Therefore, during the grinding process, due to the poor flatness of the workpiece itself, the workpiece is prone to jumping during the grinding process and has poor stability, thereby reducing the grinding quality of the workpiece. Utility Model Content

[0006] The main purpose of the utility model is to provide a centerless grinder for producing molds.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] A centerless grinder for producing molds, comprising a machine tool, a fixing seat is installed on one side of the top of the machine tool, a first housing is connected to the fixing seat, a spray mechanism is installed on the side of the fixing seat away from the first housing, a stabilizing mechanism is fixed outside the spray mechanism, and a cleaning mechanism is installed inside the stabilizing mechanism;

[0009] The stabilizing mechanism includes a support plate fixed on the spray mechanism, an adjusting screw is connected to one side of the support plate through a thread, a guide rod is slidably connected to the other side of the support plate, and a pressing plate is connected to the bottom of the adjusting screw and the guide rod, and the bottom end of the adjusting screw is connected to the bearing at the top of the pressing plate, the bottom end of the pressing plate is a hollow structure, and a roller is rotatably connected to the bottom of the pressing plate, and the bottom of the roller is located below the bottom of the pressing plate;

[0010] The cleaning mechanism comprises an outer shell body which is fixed on the pressing plate through an oblique insertion. The outer shell body is a hollow structure. A scraper is slidably connected inside the outer shell body. The top of the scraper is connected to the top of the outer shell body through a compression spring.

[0011] Preferably, the spray mechanism includes a pump mounted on a fixed seat, a water outlet pipe of the pump is installed with a pipe, and one end of the pipe is connected to a spray box, the pipe is made of hard material, and the spray box is a hollow structure, and the support plate is fixedly connected to the spray box.

[0012] Preferably, a movable seat is provided on a side of the machine tool opposite to the fixed seat, a second housing is installed on the top of the movable seat, and opposite sides of the first housing and the second housing are both hollow structures.

[0013] Preferably, a grinding roller is rotatably connected in the first housing, a guide roller is rotatably connected in the second housing, a driving motor is installed at one end of the grinding roller and the guide roller, and the rotation speed of the guide roller is lower than that of the grinding roller.

[0014] Preferably, a support seat is installed on the top of one end of the movable seat close to the fixed seat, and a support knife is fixed in the middle of the support seat.

[0015] Preferably, an adjusting motor is installed on one end of the machine tool away from the fixed seat, and the adjusting motor is connected to the movable seat through a driving screw.

[0016] Preferably, a guide rail is installed at the bottom of the movable seat, and the movable seat is slidably connected to the machine tool through the guide rail.

[0017] The beneficial technical effects are:

[0018] 1. By setting up a stabilizing mechanism, during the grinding process of the workpiece, the worker can rotate the adjusting screw on the support plate according to the size of the workpiece, so that the adjusting screw drives the pressure plate and the guide rod to move along the support plate until the bottom end of the pressure plate abuts against the top of the workpiece. The pressure plate can be used to limit the workpiece during the grinding process to prevent the workpiece from jumping. In addition, during the limiting process, the roller at the bottom of the pressure plate contacts the workpiece, which can ensure the normal rotation of the workpiece and increase the stability of the workpiece, thereby improving the grinding quality of the workpiece;

[0019] 2. When the stabilizing mechanism limits the workpiece, the scraper in the cleaning mechanism can be against the guide roller, and the compression spring in the outer shell can be compressed. The compression spring applies a reaction force to the scraper, and the scraper can scrape off the debris adhering to the surface of the guide roller during its rotation, and discharge it along both sides of the scraper, so as to avoid the contact between the debris and the surface of the workpiece and cause wear during the rotation of the workpiece driven by the guide roller, thereby improving the quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural schematic diagram of a preferred embodiment of a centerless grinder for producing molds according to the utility model;

[0021] Figure 2 A back view of a preferred embodiment of a centerless grinder for producing molds according to the utility model;

[0022] Figure 3 A schematic diagram of the positional relationship between a first housing, a spray mechanism and a grinding roller in a preferred embodiment of a centerless grinder for producing molds according to the utility model;

[0023] Figure 4 A schematic diagram of the connection relationship between the second housing, the guide roller and the drive motor in a preferred embodiment of a centerless grinder for producing molds according to the utility model;

[0024] Figure 5 A schematic diagram of the positional relationship among a pressing plate, a scraper and a guide roller in a preferred embodiment of a centerless grinder for producing a mold according to the utility model;

[0025] Figure 6 It is a structural schematic diagram of a stabilizing mechanism in a preferred embodiment of a centerless grinder for producing molds according to the utility model;

[0026] Figure 7 The figure is a schematic diagram of the positional relationship between a pressing plate and a cleaning mechanism of a preferred embodiment of a centerless grinder for producing molds according to the utility model.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Machine tool; 2. Fixed seat; 3. First housing; 4. Spray mechanism; 401. Pump; 402. Pipeline; 403. Spray box; 5. Stabilizing mechanism; 501. Support plate; 502. Adjusting screw; 503. Guide rod; 504. Pressing plate; 505. Roller; 6. Cleaning mechanism; 601. Outer shell; 602. Scraper; 603. Compression spring; 7. Movable seat; 8. Second housing; 9. Guide roller; 10. Grinding roller; 11. Driving motor; 12. Support seat; 13. Adjusting motor; 14. Driving screw; 15. Guide rail. DETAILED DESCRIPTION

[0029] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0030] like Figure 1-Figure 7As shown, a centerless grinder for producing molds provided in this embodiment includes a machine tool 1, a fixing seat 2 is installed on one side of the top of the machine tool 1, a first housing 3 is connected to the fixing seat 2, and a spray mechanism 4 is installed on the side of the fixing seat 2 away from the first housing 3, a stabilizing mechanism 5 is fixed on the outside of the spray mechanism 4, and a cleaning mechanism 6 is installed in the stabilizing mechanism 5;

[0031] The stabilizing mechanism 5 includes a support plate 501 fixed on the spray mechanism 4, and the support plate 501 can support the adjusting screw rod 502. The adjusting screw rod 502 is connected to one side of the support plate 501 through a thread, and the guide rod 503 is slidably connected to the other side of the support plate 501. The guide rod 503 can be lifted and lowered along the support plate 501, thereby guiding the lifting and lowering of the pressing plate 504. The adjusting screw rod 502 and the guide rod 503 are both connected to the bottom of the pressing plate 504, which can limit the workpiece through the pressing plate 504 during the grinding process to prevent the workpiece from jumping. The bottom end of the adjusting screw rod 502 is connected to the top bearing of the pressing plate 504, and the bottom end of the pressing plate 504 is a hollow structure, and the bottom of the pressing plate 504 is rotatably connected to a roller 505. During the limiting process, the roller 505 at the bottom of the pressing plate 504 contacts with the workpiece, which can ensure the normal rotation of the workpiece. The bottom of the roller 505 is located below the bottom of the pressing plate 504.

[0032] The cleaning mechanism 6 includes an outer shell 601 which is obliquely inserted and fixed on the pressure plate 504. The outer shell 601 supports the scraper 602 and the compression spring 603. The outer shell 601 is a hollow structure. The scraper 602 is slidably connected inside the outer shell 601. The scraper 602 can scrape off the debris adhered to the surface of the guide roller 9. The top of the scraper 602 is connected to the top of the outer shell 601 through the compression spring 603.

[0033] like Figure 1-Figure 3 As shown, the spray mechanism 4 includes a pump 401 installed on the fixed base 2, the pump 401 can extract the spray liquid from the outside, the water outlet pipe of the pump 401 is installed with a pipe 402, the pipe 402 can transport the spray liquid extracted by the pump 401 to the spray box 403, and one end of the pipe 402 is connected to the spray box 403, the spray box 403 can deliver the spray liquid to the workpiece, the pipe 402 is a hard material, and the spray box 403 is a hollow structure, and the support plate 501 is fixedly connected to the spray box 403.

[0034] like Figure 1-Figure 4 As shown, a movable seat 7 is provided on the machine tool 1 on the side relative to the fixed seat 2, and the position of the guide roller 9 can be adjusted by the movable seat 7. A second housing 8 is installed on the top of the movable seat 7, and the opposite sides of the first housing 3 and the second housing 8 are both hollow structures.

[0035] like Figure 3-Figure 4As shown, a grinding roller 10 is rotatably connected in the first housing 3, and the grinding roller 10 can grind the workpiece. A guide roller 9 is rotatably connected in the second housing 8, and the guide roller 9 can drive the workpiece to rotate and transport the workpiece. A driving motor 11 is installed at one end of the grinding roller 10 and the guide roller 9, and the driving motor 11 can respectively drive the grinding roller 10 and the guide roller 9 to rotate, and the rotation speed of the guide roller 9 is lower than the rotation speed of the grinding roller 10.

[0036] like Figure 1-Figure 2 As shown, a support seat 12 is installed on the top of one end of the movable seat 7 near the fixed seat 2. The support seat 12 can support the bottom of the workpiece and cooperate with the grinding roller 10 and the guide roller 9 to form a triangular support structure. A supporting knife is fixed in the middle of the support seat 12.

[0037] like Figure 1-Figure 2 As shown, an adjusting motor 13 is installed on the end of the machine tool 1 away from the fixed seat 2. The adjusting motor 13 can drive the movable seat 7 to move horizontally on the machine tool 1 through a driving screw 14. The adjusting motor 13 is connected to the movable seat 7 through the driving screw 14.

[0038] like Figure 1-Figure 2 As shown, a guide rail 15 is installed at the bottom of the movable seat 7, and the movable seat 7 is slidably connected to the machine tool 1 through the guide rail 15, so that the stability of the movable seat 7 when moving can be ensured through the guide rail 15.

[0039] Working principle of this device: When this device is used, the staff places the mold to be polished on the support seat 12, and then drives the adjusting motor 13 to rotate the driving screw 14 according to the polishing requirements. The driving screw 14 can drive the movable seat 7 to move along the guide rail 15 to the fixed seat 2. During the movement, the mold on the support seat 12 is driven to move until one side of the mold is against the side of the polishing roller 10. After the positioning is completed, the staff rotates the adjusting screw 502 on the stabilizing mechanism 5. The adjusting screw 502 rotates along the support plate 501 to drive the pressure plate 504 and the guide rod 503 to move along the support plate 501 until the bottom end of the pressure plate 504 is against the top of the workpiece. The driving motor 11 on the outside of the first housing 3 and the second housing 8 respectively drives the polishing roller 10 and the guide roller 9 to rotate, and the rotation speed of the guide roller 9 is less than the rotation speed of the polishing roller 10. The mold is polished by the polishing roller 10, and the workpiece is driven to rotate by the guide roller 9. The pump is pumped during the polishing process. 401 can extract external spray liquid, and the pipeline 402 transports the spray liquid extracted by the pump 401 to the spray box 403, and the spray liquid is delivered to the workpiece through the spray box 403. In the grinding process, the workpiece can be limited by the pressure plate 504 to prevent the workpiece from jumping. During the limiting process, the roller 505 at the bottom of the pressure plate 504 can contact the workpiece, which can ensure the normal rotation of the workpiece and increase the stability of the workpiece, thereby improving the grinding quality of the workpiece. At the same time, during the process of the stabilizing mechanism 5 limiting the workpiece, the scraper 602 in the cleaning mechanism 6 is against the guide roller 9, so that the compression spring 603 in the outer shell 601 is compressed, and a reaction force is applied to the scraper 602 through the compression spring 603. During the rotation of the guide roller 9, the scraper 602 can scrape off the debris adhered to the surface of the guide roller 9 and discharge it along both sides of the scraper 602, thereby preventing the debris from contacting the surface of the workpiece and causing wear during the rotation of the workpiece driven by the guide roller 9, thereby improving the quality of the workpiece.

[0040] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A centerless grinder for producing molds, characterized in that: The machine tool (1) comprises a fixing seat (2) installed on one side of the top of the machine tool (1), a first housing (3) being connected to the fixing seat (2), a spray mechanism (4) being installed on the side of the fixing seat (2) away from the first housing (3), a stabilizing mechanism (5) being fixed on the outside of the spray mechanism (4), and a cleaning mechanism (6) being installed inside the stabilizing mechanism (5); The stabilizing mechanism (5) comprises a support plate (501) fixed on the spray mechanism (4), one side of the support plate (501) is connected to an adjusting screw rod (502) via a thread, the other side of the support plate (501) is slidably connected to a guide rod (503), the bottoms of the adjusting screw rod (502) and the guide rod (503) are both connected to a pressing plate (504), the bottom end of the adjusting screw rod (502) is connected to a bearing at the top of the pressing plate (504), the bottom end of the pressing plate (504) is a hollow structure, and the inner bottom of the pressing plate (504) is rotatably connected to a roller (505), and the bottom of the roller (505) is located below the bottom of the pressing plate (504); The cleaning mechanism (6) comprises an outer shell (601) which is fixed obliquely through the pressing plate (504); the outer shell (601) is a hollow structure; a scraper (602) is slidably connected inside the outer shell (601); the top of the scraper (602) is connected to the top of the outer shell (601) via a compression spring (603).

2. A centerless grinder for producing molds according to claim 1, characterized in that: The spray mechanism (4) comprises a pump (401) mounted on the fixing seat (2); a pipe (402) is mounted on the water outlet pipe of the pump (401); one end of the pipe (402) is connected to a spray box (403); the pipe (402) is made of a hard material; the spray box (403) is a hollow structure; and the support plate (501) is fixedly connected to the spray box (403).

3. A centerless grinder for producing molds according to claim 2, characterized in that: A movable seat (7) is arranged on the machine tool (1) on a side opposite to the fixed seat (2), a second housing (8) is mounted on the top of the movable seat (7), and opposite sides of the first housing (3) and the second housing (8) are both hollow structures.

4. A centerless grinder for producing molds according to claim 3, characterized in that: A grinding roller (10) is rotatably connected inside the first housing (3), and a guide roller (9) is rotatably connected inside the second housing (8). A driving motor (11) is mounted on one end of each of the grinding roller (10) and the guide roller (9), and the rotation speed of the guide roller (9) is lower than that of the grinding roller (10).

5. A centerless grinder for producing molds according to claim 4, characterized in that: A support seat (12) is installed on the top of one end of the movable seat (7) close to the fixed seat (2), and a support knife is fixed in the middle of the support seat (12).

6. A centerless grinder for producing molds according to claim 5, characterized in that: An adjusting motor (13) is installed on one end of the machine tool (1) away from the fixed seat (2), and the adjusting motor (13) is connected to the movable seat (7) via a driving screw (14).

7. A centerless grinder for producing molds according to claim 6, characterized in that: A guide rail (15) is installed at the bottom of the movable seat (7), and the movable seat (7) is slidably connected to the machine tool (1) via the guide rail (15).

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