Rapid polishing device for injection mold

Abstract

The utility model discloses a quick polishing device for an injection mold, which comprises a shell, a fixing plate is mounted in the middle of the interior of the shell, and the rear end of the fixing plate is fixed with the shell through a bolt; the positioning plate is arranged above the fixing plate, a positioning wheel is installed on one side of the upper end face of the positioning plate, a movable sliding rod is fixedly installed on the other side of the lower end face of the positioning plate and extends to the position below the fixing plate, and a supporting spring is installed between the lower end of the movable sliding rod and the fixing plate; a polishing mechanism is mounted at the bottom of the movable sliding rod; the movable frame is installed in the shell, clamping mechanisms are installed at the upper end and the lower end in the movable frame in a sliding mode, a standard part mold is arranged at the lower end of the upper clamping mechanism, and a machined part is arranged at the upper end of the lower clamping mechanism; the problems that the operation process of a polishing device is complex, and the polishing position deviates due to parameter errors easily occur are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing devices, in particular to a rapid polishing device for injection molds. Background Art

[0002] During the process of processing the injection molded parts, the mold plate may be stretched open by the high pressure in the mold cavity, causing the molten plastic to overflow and produce burrs. In addition, improper molding conditions such as too high or too low molten plastic temperature, uneven injection speed, unstable mold temperature, too high injection pressure, too high or too low injection speed, and too much holding pressure may cause the molten plastic to have too high or too low fluidity, thus producing burrs. Therefore, the surface of the molded parts after injection molding generally needs to be polished by a polishing device to ensure that it remains smooth after processing.

[0003] For example, the Chinese authorized patent "A Surface Polishing Device for Automobile Injection Molded Parts" with announcement number CN218194431U includes a table plate, a support frame is fixedly installed on the upper side of the table plate, an electric push rod is installed on the right inner wall of the support frame through a fixed sleeve, a turntable is installed on the side end of the electric push rod, a motor is installed on the left inner wall of the support frame through a mounting frame, the output end of the motor is connected to a rotating rod through a coupling, splints are installed on the side ends of the turntable and the rotating rod, and a movable groove is opened on the upper side wall of the support frame.

[0004] Although the above-mentioned existing technology can realize the polishing of injection molded parts, the operation process is relatively complicated and requires debugging of multiple data to realize the polishing work. Not only is the efficiency low, but parameter errors are also prone to occur, resulting in deviations in the polishing position. Therefore, it does not meet the existing needs. In this regard, we propose a rapid polishing device for injection molds. Utility Model Content

[0005] The utility model aims to provide a rapid polishing device for injection molds to solve the problems of the polishing device proposed in the above background technology that the operation process is relatively complicated and the polishing position deviation is prone to parameter errors.

[0006] To achieve the above object, the utility model provides the following technical solution: a rapid polishing device for an injection mold, comprising a housing, a fixing plate installed at a middle position inside the housing, and a rear end of the fixing plate is fixed to the housing by bolts; and further comprising:

[0007] A positioning plate, which is arranged above the fixed plate, a positioning wheel is installed on one side of the upper end surface of the positioning plate, a movable slide rod is fixedly installed on the other side of the lower end surface of the positioning plate, the movable slide rod extends to the bottom of the fixed plate, and the movable slide rod is slidably connected with the fixed plate, a supporting spring is installed between the lower end of the movable slide rod and the fixed plate, and a polishing mechanism is installed at the bottom of the movable slide rod;

[0008] A movable frame is installed inside the shell, and the movable frame and the shell are slidably limited. The upper and lower ends inside the movable frame are slidably installed with clamping mechanisms. The lower end of the upper clamping mechanism is provided with a standard part mold, and the positioning wheel is fitted with the standard part mold. The upper end of the lower clamping mechanism is provided with a processed part.

[0009] Preferably, a transmission cavity is provided in the inner walls of the upper and lower ends of the movable frame, a screw is rotatably installed inside the transmission cavity, a first slider is installed outside the screw, the inner screw hole of the first slider is threadably matched with the screw, and one end face of the first slider is fixed to the clamping mechanism.

[0010] Preferably, a fixing frame is installed at the front end of the movable frame, and the fixing frame is fixed to the movable frame by welding, and an electric push rod is installed at the front end of the movable frame, and the fixed end of the electric push rod is fixed to the housing.

[0011] Preferably, a servo motor is fixedly installed on the upper end of one side of the movable frame, a transmission shaft is rotatably installed in the inner wall of one side of the movable frame, and the output shaft of the servo motor is fixed to the transmission shaft, and driving bevel gears are fixedly provided on the upper and lower ends of the outside of the transmission shaft, and a driven bevel gear is fixedly installed on one end of the screw, and the driving bevel gear is meshingly connected with the driven bevel gear.

[0012] Preferably, clamping plates are slidably installed on both sides of the outside of the clamping mechanism, a double-threaded transmission rod is rotatably installed inside the clamping mechanism, second sliders that cooperate with its threads are installed on both sides of the outside of the double-threaded transmission rod, and one end face of the second slider is fixed to the clamping plate, and a rotating wheel is rotatably installed at the front end of the clamping mechanism, and the rotating wheel is fixed to one end of the double-threaded transmission rod.

[0013] Preferably, a polishing wheel is rotatably mounted below the polishing mechanism, a driving motor is mounted inside the polishing mechanism, pulleys are mounted on the output shaft of the driving motor and the shaft of the polishing wheel, and the pulleys are coupled via belt transmission.

[0014] Preferably, a rubber pad is adhered to the inner wall of the clamping plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the polishing work, the utility model can move according to the guidance of the standard part mold, by positioning the workpiece on the lower clamping mechanism, and positioning the standard part mold on the upper clamping mechanism, at this time, the positioning wheel contacts the front end of the bottom of the standard part mold, and the positioning plate is driven down under the support action, so that the polishing wheel at the bottom of the polishing mechanism contacts the front end of the workpiece, and the motor inside the polishing mechanism is turned on to drive the polishing wheel to rotate at high speed to polish the contact part of the workpiece. At this time, the servo motor is turned on, and its output shaft drives the transmission shaft to rotate, and under the meshing of the active bevel gear and the driven bevel gear, the two screws are driven to rotate synchronously respectively, and the rotational motion is converted into linear motion in cooperation with the first slider, and the workpiece and the standard part mold are driven to move synchronously to one side respectively through the first slider. During the movement, the positioning wheel is always close to the standard part mold under the action of the support spring, so that the polishing wheel can move synchronously according to the lines of the standard part mold, thereby realizing accurate polishing of the surface of the workpiece, not only the operation process is relatively simple, but also there will be no problem of polishing position deviation.

[0017] 2. The utility model is provided with a clamping mechanism. After the workpiece or the standard mold is placed between the clamping plates, the double-threaded transmission rod can be driven to rotate by rotating the rotary wheel. The guiding effect of the inner cavity of the clamping mechanism on the second slider can convert the rotational motion into linear motion, so that the two second sliders drive the clamping plates to move synchronously in the direction of the workpiece or the standard mold, thereby fixing the object. The installation and positioning structure is convenient and easy to operate, and has high firmness. It cooperates with the polishing mechanism to quickly polish the workpiece.

[0018] 3. The utility model is provided with a movable frame, and the movable frame and the shell are limited by sliding. After the polishing wheel polishes the workpiece in a horizontal direction, the servo motor drives the upper and lower clamping mechanisms to drive the workpiece and the standard part mold to reset, and then the electric push rod is turned on to drive the movable frame to move a distance in the longitudinal direction, thereby realizing the switching of the longitudinal positions of the workpiece and the standard part mold, so as to facilitate the comprehensiveness of subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the movable frame of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the clamping mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the screw transmission structure of the utility model;

[0023] Figure 5It is a schematic diagram of the transmission structure of the clamping plate of the utility model.

[0024] In the figure: 1. housing; 2. fixing plate; 3. positioning plate; 4. positioning wheel; 5. movable slide rod; 6. polishing mechanism; 7. supporting spring; 8. polishing wheel; 9. movable frame; 10. transmission chamber; 11. screw rod; 12. first slider; 13. clamping mechanism; 14. workpiece; 15. standard part mold; 16. fixing frame; 17. electric push rod; 18. servo motor; 19. clamping plate; 20. rotating wheel; 21. transmission shaft; 22. driving bevel gear; 23. driven bevel gear; 24. double-threaded transmission rod; 25. second slider. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-5 The utility model provides an embodiment: a rapid polishing device for an injection mold, comprising a housing 1, a fixing plate 2 is installed at the middle position inside the housing 1, and the rear end of the fixing plate 2 is fixed to the housing 1 by bolts; and further comprising:

[0027] A positioning plate 3 is arranged above the fixed plate 2, a positioning wheel 4 is installed on one side of the upper end surface of the positioning plate 3, a movable slide bar 5 is fixedly installed on the other side of the lower end surface of the positioning plate 3, the movable slide bar 5 extends to the bottom of the fixed plate 2, and the movable slide bar 5 is slidably connected with the fixed plate 2, a supporting spring 7 is installed between the lower end of the movable slide bar 5 and the fixed plate 2, and a polishing mechanism 6 is installed at the bottom of the movable slide bar 5;

[0028] A movable frame 9 is installed inside the shell 1, and the movable frame 9 and the shell 1 are slidably limited. The upper and lower ends of the movable frame 9 are slidably installed with clamping mechanisms 13. The lower end of the upper clamping mechanism 13 is provided with a standard part mold 15, and the positioning wheel 4 is fitted with the standard part mold 15. The upper end of the lower clamping mechanism 13 is provided with a processing part 14.

[0029] By positioning the workpiece 14 on the lower clamping mechanism 13 and positioning the standard part mold 15 on the upper clamping mechanism 13, the positioning wheel 4 is in contact with the front end of the bottom of the standard part mold 15, and the positioning plate 3 is driven to descend under the support effect, so that the polishing wheel 8 at the bottom of the polishing mechanism 6 is in contact with the front end of the workpiece 14, and the motor inside the polishing mechanism 6 is turned on to drive the polishing wheel 8 to rotate at high speed to polish the contact part of the workpiece 14. At this time, the servo motor 18 is turned on, and its output shaft drives the transmission shaft 21 to rotate. Under the meshing of the active bevel gear 22 and the driven bevel gear 23, the two screws 11 are driven to rotate synchronously respectively, and the rotational motion is converted into linear motion in cooperation with the first slider 12. The workpiece 14 and the standard part mold 15 are driven to move synchronously to one side through the first slider 12. During the movement, the positioning wheel 4 is always close to the standard part mold 15 under the action of the support spring 7, so that the polishing wheel 8 can move synchronously according to the lines of the standard part mold 15, thereby realizing precise polishing of the surface of the workpiece 14.

[0030] See also Figure 1 A transmission cavity 10 is provided in the inner walls of the upper and lower ends of the movable frame 9, a screw rod 11 is rotatably installed inside the transmission cavity 10, a first slider 12 is installed outside the screw rod 11, an inner screw hole of the first slider 12 is threadedly matched with the screw rod 11, and one end face of the first slider 12 is fixed to the clamping mechanism 13, and the workpiece 14 or the standard part mold 15 is driven to move horizontally through the transmission cooperation of the screw rod 11 and the first slider 12.

[0031] See also Figure 2 A fixing frame 16 is installed at the front end of the movable frame 9, and the fixing frame 16 is welded and fixed to the movable frame 9. An electric push rod 17 is installed at the front end of the movable frame 9, and the fixed end of the electric push rod 17 is fixed to the housing 1 to realize the switching of the longitudinal positions of the workpiece 14 and the standard part mold 15, so as to facilitate the comprehensiveness of subsequent processing.

[0032] See also Figure 1 and Figure 4 A servo motor 18 is fixedly installed on the upper end of one side of the movable frame 9, a transmission shaft 21 is rotatably installed in the inner wall of one side of the movable frame 9, and the output shaft of the servo motor 18 is fixed to the transmission shaft 21, and the upper and lower ends of the outer side of the transmission shaft 21 are fixedly provided with a driving bevel gear 22, and one end of the screw rod 11 is fixedly installed with a driven bevel gear 23, and the driving bevel gear 22 is meshed with the driven bevel gear 23 to achieve synchronous rotation of the two screw rods 11, thereby ensuring the accuracy of the polishing work.

[0033] See also Figure 1 , Figure 3 and Figure 5A clamping plate 19 is slidably installed on both sides of the outside of the clamping mechanism 13, a double-threaded transmission rod 24 is rotatably installed inside the clamping mechanism 13, and second sliders 25 that cooperate with the threads of the double-threaded transmission rod 24 are installed on both sides of the outside of the double-threaded transmission rod 24, and one end face of the second slider 25 is fixed to the clamping plate 19, and a rotating wheel 20 is rotatably installed at the front end of the clamping mechanism 13, and the rotating wheel 20 is fixed to one end of the double-threaded transmission rod 24. The installation and positioning structure is convenient and easy to operate, and has high firmness, and cooperates with the polishing mechanism 6 to quickly polish the workpiece 14.

[0034] See also Figure 1 A polishing wheel 8 is rotatably installed below the polishing mechanism 6, and a driving motor is installed inside the polishing mechanism 6. Pulleys are installed on the output shaft of the driving motor and the shaft of the polishing wheel 8, and the pulleys are matched through belt transmission to realize the rotation drive of the polishing wheel 8.

[0035] Furthermore, a rubber pad is adhered to the inner wall of the clamping plate 19 .

[0036] Working principle: When in use, after placing the workpiece 14 or the standard part mold 15 between the clamping plates 19, the double-threaded transmission rod 24 can be driven to rotate by rotating the rotary wheel 20, and the guiding effect of the inner cavity of the clamping mechanism 13 on the second slider 25 can be used to convert the rotational motion into linear motion, so that the two second sliders 25 drive the clamping plates 19 to move synchronously in the direction of the workpiece 14 or the standard part mold 15 to fix the object. After the polishing wheel 8 polishes the workpiece 14 in a horizontal direction, the servo motor 18 drives the upper and lower clamping mechanisms 13 to drive the workpiece 14 and the standard part mold 15 to reset, and then turns on the electric push rod 17 to drive the movable frame 9 to move a distance in the longitudinal direction, thereby realizing the switching of the longitudinal positions of the workpiece 14 and the standard part mold 15.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rapid polishing device for an injection mold, comprising a housing (1), a fixing plate (2) being installed at a middle position inside the housing (1), and a rear end of the fixing plate (2) being fixed to the housing (1) by bolts; Features: Also includes: A positioning plate (3) is arranged above the fixed plate (2), a positioning wheel (4) is installed on one side of the upper end surface of the positioning plate (3), a movable slide bar (5) is fixedly installed on the other side of the lower end surface of the positioning plate (3), the movable slide bar (5) extends to the bottom of the fixed plate (2), and the movable slide bar (5) is slidably connected to the fixed plate (2), a supporting spring (7) is installed between the lower end of the movable slide bar (5) and the fixed plate (2), and a polishing mechanism (6) is installed at the bottom of the movable slide bar (5); A movable frame (9) is installed inside the shell (1), and the movable frame (9) and the shell (1) are slidably limited. The upper and lower ends of the movable frame (9) are slidably installed with clamping mechanisms (13). The lower end of the upper clamping mechanism (13) is provided with a standard part mold (15), and the positioning wheel (4) is fitted with the standard part mold (15). The upper end of the lower clamping mechanism (13) is provided with a processing part (14).

2. A rapid polishing device for injection molds according to claim 1, characterized in that: A transmission cavity (10) is provided in the inner walls of the upper and lower ends of the movable frame (9), a screw rod (11) is rotatably installed inside the transmission cavity (10), a first slider (12) is installed outside the screw rod (11), an inner screw hole of the first slider (12) is threadably matched with the screw rod (11), and one end face of the first slider (12) is fixed to a clamping mechanism (13).

3. A rapid polishing device for injection molds according to claim 1, characterized in that: A fixing frame (16) is installed at the front end of the movable frame (9), and the fixing frame (16) is fixed to the movable frame (9) by welding. An electric push rod (17) is installed at the front end of the movable frame (9), and the fixed end of the electric push rod (17) is fixed to the housing (1).

4. A rapid polishing device for injection molds according to claim 2, characterized in that: A servo motor (18) is fixedly mounted on the upper end of one side of the movable frame (9), a transmission shaft (21) is rotatably mounted in the inner wall of one side of the movable frame (9), and the output shaft of the servo motor (18) is fixed to the transmission shaft (21), and the upper and lower ends of the outside of the transmission shaft (21) are fixedly provided with a driving bevel gear (22), and one end of the screw rod (11) is fixedly mounted with a driven bevel gear (23), and the driving bevel gear (22) is meshingly connected with the driven bevel gear (23).

5. A rapid polishing device for injection molds according to claim 1, characterized in that: Clamping plates (19) are slidably mounted on both sides of the outside of the clamping mechanism (13); a double-threaded transmission rod (24) is rotatably mounted inside the clamping mechanism (13); second sliders (25) threadably matched with the double-threaded transmission rod (24) are mounted on both sides of the outside of the double-threaded transmission rod (24); one end surface of the second slider (25) is fixed to the clamping plate (19); a rotating wheel (20) is rotatably mounted at the front end of the clamping mechanism (13); and the rotating wheel (20) is fixed to one end of the double-threaded transmission rod (24).

6. A rapid polishing device for injection molds according to claim 1, characterized in that: A polishing wheel (8) is rotatably mounted below the polishing mechanism (6), a driving motor is mounted inside the polishing mechanism (6), and pulleys are mounted on the output shaft of the driving motor and the shaft of the polishing wheel (8), and the pulleys are matched with each other through belt transmission.

7. A rapid polishing device for injection molds according to claim 5, characterized in that: A rubber pad is adhered to the inner wall of the clamping plate (19).

Images