Electromagnetic hot pressing device for die sleeve of tungsten wire die
By designing the electromagnetic hot pressing device of the tungsten wire mold mold sleeve, and using the pre-pressing cylinder of the feed positioning mechanism and the hot pressing mechanism, the problems of traditional electromagnetic hot pressing processing are solved, and efficient powder filling and hot pressing molding are achieved without spilling.
Patent Information
- Application Number
- CN202421919047.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The electromagnetic hot pressing method of traditional tungsten wire molds is inefficient, and manual filling of powder is likely to cause spilling, and it is difficult to achieve synchronous heat pressing efficiency with powder filling.
An electromagnetic heat pressing device for mold sleeve of tungsten wire mold is designed, and the mold sleeve is quickly introduced into and filled with a feed positioning mechanism. The powder is pre-pressed through the pre-pressing cylinder of the hot pressing mechanism to prevent the powder from spilling, and the circulation transmission device and electromagnetic heating ring are used to achieve efficient hot press forming.
The powder filling efficiency is improved, the spilling phenomenon caused by powder filling is avoided, the state of the mold core after hot pressing is ensured, and the appearance of loose core and pores are avoided.
Smart Images
Figure CN222902186U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electromagnetic hot pressing, and particularly relates to an electromagnetic hot pressing device for a tungsten wire die sleeve. Background Art
[0002] A wire drawing die is a tool that, during the metal pressure processing process, forces metal to pass through the die under external force, compresses the cross-sectional area of the metal, and obtains the required cross-sectional shape and size; a wire drawing die is a special die through which a metal wire passes, making it gradually thinner from thick to the size required by people; a wire drawing die mainly consists of a die sleeve and a die core. The die sleeve is made of high-quality steel, and the die core is made of natural diamond die, single crystal diamond die, polycrystalline diamond die, cemented carbide die, etc. For cemented carbide dies, the die core is sintered from tungsten carbide and cobalt powder; traditionally, tungsten carbide and cobalt powder are filled manually, and then electromagnetic heating and hydraulic compaction are carried out simultaneously. However, this processing method is inefficient. The main reason is that the hot pressing efficiency of employees cannot be synchronized with the powder filling, resulting in low efficiency, and it is easy for the powder to spill when the employees fill the powder. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide an electromagnetic hot pressing device for a tungsten wire die sleeve, which has a simple structure, is convenient and practical, and can quickly introduce the die sleeve through a feeding and positioning mechanism and fill it with material powder at the same time, so as to improve the powder filling efficiency and avoid the spilling phenomenon caused by powder filling.
[0004] An electromagnetic hot pressing device for a tungsten wire die sleeve includes a fixed frame, a substrate, a hot pressing mechanism, a circulating transmission device, and a feeding and positioning mechanism. The substrate is fixed on the fixed frame, the feeding and positioning mechanism is connected to the substrate, the hot pressing mechanism is connected to the fixed frame, and the circulating transmission device is arranged on the hot pressing mechanism and located between the feeding and positioning mechanism and the hot pressing mechanism; the feeding and positioning mechanism includes a hot pressing oil cylinder, a lower positioning plate, a lower pre-pressing oil cylinder, a discharge hole, a pre-pressing hole, a top bar, and a top bar cylinder. The lower positioning plate is installed on the substrate, the hot pressing oil cylinder is installed on the substrate, and the piston rod penetrates through the substrate and the lower positioning plate and cooperates with the hot pressing mechanism. The discharge hole and the pre-pressing hole penetrate through the lower positioning plate and the substrate and cooperate with the circulating transmission device. The lower pre-pressing oil cylinder is installed on the substrate, and the piston rod is arranged in the pre-pressing hole. One end of the lower positioning plate is provided with a guide ring hole communicating with the pre-pressing hole. The top bar is arranged in the guide ring hole. The top bar cylinder is installed on the substrate, and the piston rod is connected to the top bar. One side of the lower positioning plate is provided with an inlet ring hole communicating with the guide ring hole. A finger cylinder is installed on the lower positioning plate, and an arc-shaped positioning plate is connected to the piston rod of the finger cylinder.
[0005] Preferably, the hot pressing mechanism includes an upper positioning plate, a support rod, a pre-pressing oil cylinder, a pre-pressing head, a hot pressing head, and an electromagnetic heating coil. The upper positioning plate is connected to the substrate through several support rods. The pre-pressing oil cylinder is installed on the upper positioning plate, and its piston rod is connected to the pre-pressing head. The pre-pressing head is arranged directly above the pre-pressing hole. The hot pressing head is connected to the upper positioning plate and cooperates with the hot pressing oil cylinder. The electromagnetic heating coil is connected to the hot pressing head and is arranged below the hot pressing head.
[0006] Preferably, the circulating transmission device includes a circulating motor, a rotating column, a driving wheel, a driven wheel, a positioning ring, and a transmission belt. The rotating column is movably connected between the hot pressing mechanism and the substrate. The circulating motor is installed on the upper positioning plate, and its power rod is connected to the rotating column. The driving wheel is connected to the rotating column. The driven wheel is movably connected to the support rod. The driving wheel is connected to the driven wheel through the transmission belt. Several positioning rings are connected to the transmission belt at regular intervals.
[0007] Preferably, it includes a powder feeding device. A powder inlet hole is opened on the lower positioning plate. The powder inlet hole is communicated with the guide ring hole and is connected to the powder feeding device.
[0008] Preferably, it further includes a vibrating disk. The inlet ring hole is connected to the vibrating disk.
[0009] Advantageous effects:
[0010] (1) For the electromagnetic hot pressing device of a tungsten wire mold sleeve of the present invention, its structure is simple, convenient and practical. The mold sleeve is quickly introduced through the feeding and positioning mechanism, and at the same time, the mold sleeve is filled with material powder, so as to improve the powder filling efficiency and avoid the spilling phenomenon caused by powder filling.
[0011] (2) For the electromagnetic hot pressing device of a tungsten wire mold sleeve of the present invention, the pre-pressing oil cylinder of the hot pressing mechanism pre-compresses the powder in the mold sleeve, avoiding the powder spilling phenomenon during the cyclic transportation of the mold sleeve, so as to ensure the state of the mold core after hot pressing and avoid the mold core from becoming loose and having air holes. Description of the drawings
[0012] Figure 1 It is a structural schematic diagram of the electromagnetic hot pressing device for the mold sleeve;
[0013] Figure 2 It is a structural schematic diagram of the hot pressing mechanism;
[0014] Figure 3 It is a structural schematic diagram of the feeding and positioning mechanism;
[0015] 1 - Fixed frame, 2 - Substrate, 3 - Hot pressing mechanism, 31 - Upper positioning plate, 32 - Support rod, 33 - Pre - pressing oil cylinder, 34 - Pre - pressing head, 35 - Hot pressing head, 36 - Electromagnetic heating coil, 4 - Circulating drive device, 41 - Circulating motor, 42 - Rotating column, 43 - Driving wheel, 44 - Driven wheel, 45 - Positioning ring, 5 - Feeding positioning mechanism, 51 - Hot pressing oil cylinder, 52 - Lower positioning plate, 53 - Lower pre - pressing oil cylinder, 54 - Discharge hole, 55 - Guide ring hole, 56 - Inlet ring hole, 57 - Pre - pressing hole, 58 - Top bar, 59 - Top bar cylinder, 510 - Finger cylinder, 511 - Arc - shaped positioning plate. Detailed implementation manners
[0016] The embodiments of the present utility model will be further described below with reference to the accompanying drawings.
[0017] Embodiment 1
[0018] As Figure 1As shown in the figure; an electromagnetic hot pressing device for a tungsten wire die sleeve, comprising a fixing frame 1, a substrate 2, a hot pressing mechanism 3, a circulating transmission device 4 and a feeding and positioning mechanism 5. The substrate 2 is fixed on the fixing frame 1. The feeding and positioning mechanism 5 is connected to the substrate 2. The hot pressing mechanism 3 is connected to the fixing frame 1. The circulating transmission device 4 is arranged on the hot pressing mechanism 3 and is located between the feeding and positioning mechanism 5 and the hot pressing mechanism 3. The feeding and positioning mechanism 5 includes a hot pressing oil cylinder 51, a lower positioning plate 52, a lower pre-pressing oil cylinder 53, a discharge hole 54, a pre-pressing hole 57, a top bar 58 and a top bar cylinder 59. The lower positioning plate 52 is installed on the substrate 2. The hot pressing oil cylinder 51 is installed on the substrate 2 and its piston rod penetrates through the substrate 2 and the lower positioning plate 52 to cooperate with the hot pressing mechanism 3. The discharge hole 54 and the pre-pressing hole 57 penetrate through the lower positioning plate 52 and the substrate 2 and cooperate with the circulating transmission device 4. The lower pre-pressing oil cylinder 53 is installed on the substrate 2 and its piston rod is arranged in the pre-pressing hole 57. One end of the lower positioning plate 52 is provided with a guide ring hole 55 communicating with the pre-pressing hole 57. The top bar 58 is arranged in the guide ring hole 55. The top bar cylinder 59 is installed on the substrate 2 and its piston rod is connected to the top bar 58. One side of the lower positioning plate 52 is provided with an inlet ring hole 56 communicating with the guide ring hole 55. A finger cylinder 510 is installed on the lower positioning plate 52. An arc-shaped positioning plate 511 is connected to the piston rod of the finger cylinder 510. The hot pressing mechanism 3 includes an upper positioning plate 31, a support rod 32, a pre-pressing oil cylinder 33, a pre-pressing head 34, a hot pressing head 35 and an electromagnetic heating coil 36. The upper positioning plate 31 is connected to the substrate 2 through several support rods 32. The pre-pressing oil cylinder 33 is installed on the upper positioning plate 31 and its piston rod is connected to the pre-pressing head 34. The pre-pressing head 34 is arranged directly above the pre-pressing hole 57. The hot pressing head 35 is connected to the upper positioning plate 31 and cooperates with the hot pressing oil cylinder 51. The electromagnetic heating coil 36 is connected to the hot pressing head 35. The electromagnetic heating coil 36 is arranged below the hot pressing head 35. The circulating transmission device 4 includes a circulating motor 41, a rotating column 42, a driving wheel 43, a driven wheel 44, a positioning ring 45 and a transmission belt. The rotating column 42 is movably connected between the hot pressing mechanism 3 and the substrate 2. The circulating motor 41 is installed on the upper positioning plate 31 and its power rod is connected to the rotating column 42. The driving wheel 43 is connected to the rotating column 42. The driven wheel 44 is movably connected to the support rod 32. The driving wheel 43 is connected to the driven wheel 44 through the transmission belt. Several positioning rings 45 are connected to the transmission belt at fixed intervals. It includes a powder feeding device. A powder inlet hole is opened on the lower positioning plate 52. The powder inlet hole communicates with the guide ring hole 55. The powder inlet hole is connected to the powder feeding device. It also includes a vibrating disk. The inlet ring hole 56 is connected to the vibrating disk.
[0019] The die sleeve is introduced into the guide ring hole 55 through the vibrating bowl via the die sleeve inlet hole 56. When the top bar cylinder 59 is turned on, the top bar cylinder 59 drives the top bar 58, and the top bar 58 pushes the die sleeve to move below the powder inlet hole. The powder feeding device introduces the powder into the die sleeve through the powder inlet hole. After the powder filling is completed, the top bar cylinder 59 continues to drive the top bar 58 to move, so that the die sleeve enters the pre-pressing hole 57. Then the lower pre-pressing oil cylinder 53 is turned on to lift the die sleeve, so that the end of the piston rod of the lower pre-pressing oil cylinder 53 is flush with the top of the lower positioning plate 52. At the same time, the die sleeve enters the positioning ring 45. Then the pre-pressing oil cylinder 33 is turned on, and the pre-pressing oil cylinder 33 drives the pre-pressing head 34 to insert into the die sleeve, so that the powder inside is pressed tightly by the cooperation of the lower pre-pressing oil cylinder 53 and the pre-pressing oil cylinder 33. After the pre-pressing is completed, the pre-pressing oil cylinder 33 resets; when the circulating motor 41 is turned on, the circulating motor 41 drives the rotating column 42, and the rotating column 42 drives the driving wheel 43 to rotate. The driving wheel 43 drives the driven wheel 44 through the transmission belt, and the positioning ring 45 on the transmission belt moves synchronously until the die sleeve in the positioning ring 45 moves out above the hot-pressing oil cylinder 51. After the die sleeve moves, the lower pre-pressing oil cylinder 53 resets. Then the two piston rods of the finger cylinder 510 drive the two arc-shaped positioning plates 511 to close to position the die sleeve. Then the finger cylinder 510 drives the two arc-shaped positioning plates 511 to open. Then the hot-pressing oil cylinder 51 is turned on to lift the positioned die sleeve, so that the die sleeve enters the electromagnetic heating coil 36 to heat the die sleeve and the powder inside. After the heating is completed, the hot-pressing oil cylinder 51 continues to lift the die sleeve until it cooperates with the hot-pressing head 35 to hot-press the heated powder into shape. After the hot-pressing is completed, the piston rod of the hot-pressing oil cylinder 51 retracts and resets, so that the hot-pressed die sleeve descends into the positioning ring 45. Then the circulating transmission device 4 continues to drive the die sleeve to move, so that the die sleeve moves above the discharge hole 54, and the die sleeve falls into the discharge hole 54 to be discharged to complete the processing. This process is repeated for processing.
[0020] The specific embodiments of the present invention have been described in detail above, but they are only examples, and the present invention is not limited to the above-described specific embodiments. For those skilled in the art, any equivalent modifications and substitutions made to the present invention are also within the scope of the present invention. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of the present invention are covered within the scope of the present invention.
Claims
1. A tungsten wire mold sleeve electromagnetic hot pressing device, characterized in that: The invention comprises a fixed frame (1), a base plate (2), a hot pressing mechanism (3), a circulating transmission device (4) and a feeding positioning mechanism (5), wherein the base plate (2) is fixed on the fixed frame (1), the feeding positioning mechanism (5) is connected to the base plate (2), the hot pressing mechanism (3) is connected to the fixed frame (1), the circulating transmission device (4) is arranged on the hot pressing mechanism (3) and is located between the feeding positioning mechanism (5) and the hot pressing mechanism (3); the feeding positioning mechanism (5) comprises a hot pressing oil cylinder (51), a lower positioning plate (52), a lower pre-pressing oil cylinder (53), a discharge hole (54), a pre-pressing hole (57), a top bar (58) and a top bar cylinder (59), wherein the lower positioning plate (52) is mounted on the base plate (2), the hot pressing oil cylinder (51) is mounted on the base plate (2) and the piston rod passes through the base plate (2) and the lower positioning plate (52). The positioning plate (52) cooperates with the hot pressing mechanism (3), the discharge hole (54) and the pre-pressing hole (57) penetrate the lower positioning plate (52) and the base plate (2) and cooperate with the circulating transmission device (4), the base plate (2) is equipped with a lower pre-pressing oil cylinder (53) and the piston rod is arranged in the pre-pressing hole (57), one end of the lower positioning plate (52) is provided with a guide ring hole (55) connected with the pre-pressing hole (57), the top bar (58) is arranged in the guide ring hole (55), the top bar cylinder (59) is installed on the base plate (2) and the piston rod is connected with the top bar (58), one side of the lower positioning plate (52) is provided with a ring inlet hole (56) connected with the guide ring hole (55), the lower positioning plate (52) is equipped with a finger cylinder (510), and the piston rod of the finger cylinder (510) is connected with an arc-shaped positioning plate (511).
2. The electromagnetic hot pressing device for a tungsten wire mold sleeve according to claim 1, characterized in that: The hot pressing mechanism (3) comprises an upper positioning plate (31), a support rod (32), a pre-pressing cylinder (33), a pre-pressing head (34), a hot pressing head (35) and an electromagnetic heating coil (36); the upper positioning plate (31) is connected to the base plate (2) via a plurality of support rods (32); the pre-pressing cylinder (33) is mounted on the upper positioning plate (31) and the piston rod is connected to the pre-pressing head (34); the pre-pressing head (34) is arranged directly above the pre-pressing hole (57); the hot pressing head (35) is connected to the upper positioning plate (31) and cooperates with the hot pressing cylinder (51); the electromagnetic heating coil (36) is connected to the hot pressing head (35); and the electromagnetic heating coil (36) is arranged below the hot pressing head (35).
3. The electromagnetic hot pressing device for a tungsten wire mold sleeve according to claim 1, characterized in that: The circulating transmission device (4) comprises a circulating motor (41), a rotating column (42), a driving wheel (43), a driven wheel (44), a positioning ring (45) and a transmission belt. The rotating column (42) is movably connected between the hot pressing mechanism (3) and the base plate (2). The circulating motor (41) is mounted on the upper positioning plate (31) and the power rod is connected to the rotating column (42). The driving wheel (43) is connected to the rotating column (42). The driven wheel (44) is movably connected to the support rod (32). The driving wheel (43) is connected to the driven wheel (44) via a transmission belt. A plurality of positioning rings (45) are connected to the transmission belt at fixed intervals.
4. The electromagnetic hot pressing device for a tungsten wire mold sleeve according to claim 3, characterized in that: A powder delivery device is included. A powder inlet hole is provided on the lower positioning plate (52). The powder inlet hole is communicated with the guide ring hole (55). The powder inlet hole is connected to the powder delivery device.
5. The electromagnetic hot pressing device for a tungsten wire mold sleeve according to claim 4, characterized in that: It also includes a vibration plate, and the ring inlet hole (56) is connected to the vibration plate.