Finish broaching die capable of automatically cleaning die sleeve
By introducing an automatic cleaning die sleeve design into the precision drawing die, the automatic cleaning of the die sleeve is achieved by using a cleaning mechanism and a drive mechanism, which solves the problem of dust affecting the die surface and improves cleaning efficiency and product quality.
Patent Information
- Application Number
- CN202520203542.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing precision drawing dies have a simple frame structure, which makes them prone to dust accumulation, causing the dust to affect the quality of the die and the workpiece.
An automatic cleaning die for drawing molds was designed, equipped with a cleaning mechanism and a drive mechanism. The mold is automatically cleaned by a cleaning brush and a vacuum cleaner. The cleaning brush is driven by a motor to rotate and the dust is removed through the suction hole and suction pipe.
It enables automatic cleaning of the mold sleeve, reduces manual labor, avoids the impact of dust on the mold and product, and improves cleaning efficiency.
Smart Images

Figure CN223531108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to a precision drawing mold with an automatic cleaning sleeve. Background Technology
[0002] A precision drawing die is a type of die used for the precision drawing of metal materials. Its working principle is based on the drawing process. During the drawing process, the metal material passes through the die hole of the precision drawing die under tensile force. The die applies pressure and friction to the metal material, causing plastic deformation, thereby reducing the diameter, improving precision, and enhancing surface quality. In a precision drawing die, the die core is often installed inside a die sleeve, which fixes the die core in place. A search revealed Chinese Patent Publication No. CN103920730B, which discloses a semi-enclosed precision drawing method for commutator segments and its precision drawing die. The precision drawing die includes a die base fixing plate with two die bases arranged in a straight line: a first die base in front and a second die base in the rear. Both the first and second die bases have die frames inside, and the precision drawing die is housed within the die frame of the first die base.
[0003] The above technical solution adopts a semi-enclosed precision drawing method, which can achieve the goal of stabilizing product quality. However, the mold frame structure used to install the mold is simple, and dust easily adheres to the surface during use. When the machine is in use, the adsorbed dust will fall onto the mold and workpiece due to vibration and other factors, which will affect the mold and workpiece. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a precision drawing die for automatic cleaning of the die sleeve, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a precision drawing die for an automatic cleaning mold sleeve, comprising a base plate, a bracket fixedly connected to the top of the base plate, a mold sleeve embedded and fixedly installed inside the bracket, a precision drawing die fixedly installed inside the mold sleeve, cleaning mechanisms cooperating with the mold sleeve being fixedly installed on both sides of the outer surface of the bracket, and a driving mechanism cooperating with the cleaning mechanism being fixedly installed on the top of the bracket;
[0006] The cleaning mechanism includes a connecting plate fixedly connected to one side of the top of the bracket. One end of the connecting plate is fixedly connected to an annular sleeve. An annular frame is rotatably connected inside the annular sleeve. A cleaning brush that contacts the outer surface of the mold sleeve is fixedly connected to one side of the annular frame.
[0007] Preferably, the cross-sectional shape of the annular frame is U-shaped, and multiple dust suction holes are sequentially opened on one side of the outer surface of the annular frame to facilitate the absorption of dust.
[0008] Preferably, a vacuum cleaner is fixedly installed on one side of the upper surface of the base plate, and a suction tube is fixedly connected to the suction end of the vacuum cleaner. One end of the suction tube is fixedly connected to the inner bottom of the annular sleeve to facilitate the generation of suction force to suck away the dust.
[0009] Preferably, the driving mechanism includes an annular frame fixedly connected to one side of the outer surface of the annular frame, an external gear ring fixedly connected to one side of the annular frame, a driving gear meshing with the outer surface of the external gear ring, and a rotating shaft fixedly connected between the two driving gears, so as to drive the two annular frames to rotate simultaneously.
[0010] Preferably, a motor is fixedly installed on the top of the bracket, the output shaft of the motor is fixedly connected to a first bevel gear, and a second bevel gear that meshes with the first bevel gear is fixedly sleeved on the outer surface of the rotating shaft, so as to facilitate driving the rotating shaft to rotate.
[0011] Preferably, a bearing seat is rotatably connected to the outer surface of the rotating shaft, and the bearing seat is fixedly installed on the top of the bracket to facilitate support of the rotating shaft.
[0012] This invention provides a precision drawing die for automatically cleaning the die sleeve. It has the following beneficial effects:
[0013] This automatic cleaning die for drawing molds uses a cleaning mechanism and a drive mechanism. The drive mechanism rotates the cleaning brushes in the cleaning mechanisms on both sides, which can clean the dust on both sides of the die simultaneously. Then, the dust can be cleaned by a vacuum cleaner, suction pipe and suction hole, thus automatically cleaning the die without manual cleaning. This not only reduces the workload, but also prevents dust from affecting the mold and the product. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the mold sleeve and the precision drawing die of this utility model;
[0016] Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model;
[0017] Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model;
[0018] Figure 5 This is a partial structural diagram of the drive mechanism of this utility model.
[0019] In the diagram, 1. Base plate; 2. Support; 3. Mold sleeve; 4. Precision drawing mold; 5. Cleaning mechanism; 51. Connecting plate; 52. Ring sleeve; 53. Ring frame; 54. Cleaning brush; 55. Dust suction hole; 56. Vacuum cleaner; 57. Suction pipe; 6. Drive mechanism; 61. Ring frame; 62. External gear ring; 63. Drive gear; 64. Rotating shaft; 65. Motor; 66. First bevel gear; 67. Second bevel gear; 68. Bearing seat. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example:
[0022] like Figures 1 to 5 As shown, an automatic cleaning mold for a precision drawing die includes a base plate 1. A bracket 2 is fixedly connected to the top of the base plate 1. A mold 3 is embedded and fixedly installed inside the bracket 2. A precision drawing die 4 is fixedly installed inside the mold 3. Cleaning mechanisms 5 that cooperate with the mold 3 are fixedly installed on both sides of the outer surface of the bracket 2. The cleaning mechanism 5 includes a connecting plate 51 fixedly connected to one side of the top of the bracket 2. An annular sleeve 52 is fixedly connected to one end of the connecting plate 51. An annular frame 53 is rotatably connected to the inside of the annular sleeve 52. A cleaning brush 54 that contacts the outer surface of the mold 3 is fixedly connected to one side of the annular frame 53. The annular frame 53 has a U-shaped cross-section, and multiple suction holes 55 are sequentially opened on one side of the outer surface of the annular frame 53. A vacuum cleaner 56 is fixedly installed on one side of the upper surface of the base plate 1. A suction pipe 57 is fixedly connected to the suction end of the vacuum cleaner 56. One end of the suction pipe 57 is fixedly connected to the inner bottom of the annular sleeve 52.
[0023] The cleaning brush 54 can clean the outer surface of the mold sleeve 3. The vacuum cleaner 56 can generate suction, and then the dust can be sucked away through the suction hole 55 and the suction pipe 57, thereby realizing the automatic cleaning operation of the mold sleeve 3 and avoiding damage to the mold and product.
[0024] A drive mechanism 6, which cooperates with the cleaning mechanism 5, is fixedly installed on the top of the bracket 2. The drive mechanism 6 includes an annular frame 61 fixedly connected to one side of the outer surface of the annular frame 53. An external gear ring 62 is fixedly connected to one side of the annular frame 61. A drive gear 63 is meshed with the outer surface of the external gear ring 62. A rotating shaft 64 is fixedly connected between the two drive gears 63. A motor 65 is fixedly installed on the top of the bracket 2. A first bevel gear 66 is fixedly connected to the output shaft of the motor 65. A second bevel gear 67, which meshes with the first bevel gear 66, is fixedly sleeved on the outer surface of the rotating shaft 64. A bearing seat 68 is rotatably connected to the outer surface of the rotating shaft 64. The bearing seat 68 is fixedly installed on the top of the bracket 2.
[0025] During the cleaning process, the motor 65 is started. The rotation of the motor 65 drives the first bevel gear 66 to rotate, which in turn drives the rotating shaft 64 to rotate through the second bevel gear 67. The drive gears 63 on both sides and the outer gear ring 62 simultaneously drive the annular frame 53 on both sides and the cleaning brush 54 to rotate, thereby improving the cleaning effect on the mold sleeve 3.
[0026] Working principle: The cleaning brush 54 can clean the outer surface of the mold sleeve 3. The vacuum cleaner 56 generates suction, and the dust can be sucked away through the suction hole 55 and the suction pipe 57, thereby realizing the automatic cleaning operation of the mold sleeve 3 and avoiding damage to the mold and product. During the cleaning process, the motor 65 is started. The rotation of the motor 65 drives the first bevel gear 66 to rotate, and the second bevel gear 67 drives the rotating shaft 64 to rotate. The drive gears 63 on both sides and the external gear ring 62 can simultaneously drive the annular frame 53 on both sides and the cleaning brush 54 to rotate, thereby improving the cleaning effect of the mold sleeve 3.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A precision drawing die for an automatic cleaning mold sleeve, comprising a base plate (1), characterized in that: A bracket (2) is fixedly connected to the top of the base plate (1). A mold sleeve (3) is embedded and fixedly installed inside the bracket (2). A precision drawing mold (4) is fixedly installed inside the mold sleeve (3). Cleaning mechanisms (5) that cooperate with the mold sleeve (3) are fixedly installed on both sides of the outer surface of the bracket (2). A driving mechanism (6) that cooperates with the cleaning mechanism (5) is fixedly installed on the top of the bracket (2). The cleaning mechanism (5) includes a connecting plate (51) fixedly connected to one side of the top of the bracket (2). One end of the connecting plate (51) is fixedly connected to an annular sleeve (52). The annular sleeve (52) is rotatably connected to an annular frame (53) with a sealing seal. One side of the annular frame (53) is fixedly connected to a cleaning brush (54) that contacts the outer surface of the mold sleeve (3).
2. The precision drawing die for an automatic cleaning mold sleeve according to claim 1, characterized in that: The cross-sectional shape of the annular frame (53) is U-shaped, and a plurality of dust suction holes (55) are sequentially opened on one side of the outer surface of the annular frame (53).
3. The precision drawing die for an automatic cleaning mold sleeve according to claim 1, characterized in that: A vacuum cleaner (56) is fixedly installed on one side of the upper surface of the base plate (1). The suction end of the vacuum cleaner (56) is fixedly connected to a suction pipe (57). One end of the suction pipe (57) is fixedly connected to the inner bottom of the annular sleeve (52).
4. The precision drawing die for an automatic cleaning mold sleeve according to claim 1, characterized in that: The drive mechanism (6) includes an annular frame (61) fixedly connected to one side of the outer surface of the annular frame (53). An external gear ring (62) is fixedly connected to one side of the annular frame (61). A drive gear (63) is meshed with the outer surface of the external gear ring (62). A rotating shaft (64) is fixedly connected between the two drive gears (63).
5. The precision drawing die for an automatic cleaning mold sleeve according to claim 4, characterized in that: A motor (65) is fixedly installed on the top of the bracket (2). The output shaft of the motor (65) is fixedly connected to a first bevel gear (66). A second bevel gear (67) that meshes with the first bevel gear (66) is fixedly sleeved on the outer surface of the rotating shaft (64).
6. The precision drawing die for an automatic cleaning mold sleeve according to claim 4, characterized in that: The outer surface of the rotating shaft (64) is rotatably connected to a bearing seat (68), which is fixedly installed on the top of the bracket (2).
Citation Information
Patent Citations
A semi-enclosed precision drawing method for commutator segments and its precision drawing die
CN103920730B