CN115071150A

CN115071150A - Transformer framework injection molding device

Info

Publication number: CN115071150A
Application number: CN202210514257.3A
Authority: CN
Inventors: 徐书彪; 郑引兰; 赵树华; 黄劲松
Original assignee: Nantong Wanshixin Electronic Technology Co ltd
Current assignee: Nantong Wanshixin Electronic Technology Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-09-20

Abstract

The invention discloses an injection molding device for a transformer framework, which relates to the field of injection molding and comprises a moving device, wherein the moving device drives a vertical plate to move transversely and longitudinally, a hot melting device, a clamping device, a cutting device and a feeding device are arranged on the vertical plate, a metal wire sequentially passes through the feeding device, the cutting device, the clamping device and the hot melting device from top to bottom, a framework main body is produced through an injection mold, the metal wire is installed at a specified position of the framework main body through the control of the moving device, the injection molding and the installation of a wire needle are integrated, the wire needle head is manufactured through the hot melting device, and the wire needle is installed on the framework main body, so that the production efficiency is improved.

Description

Transformer framework injection molding device

Technical Field

The invention relates to the field of injection molding, in particular to an injection molding device for a transformer framework.

Background

When the transformer framework is produced, a wiring pin needs to be preset, and the wiring pin is used for connecting and fixing a wire end of a transformer winding. The production technology of the wiring needle of the T-shaped is mostly adopted in the existing transformer framework, the wiring needle of the T-shaped is required to be fixed in a forming die firstly during production, and then the wiring needle and a framework main body are integrally formed in an injection molding mode, the fixing of the existing wiring needle of the T-shaped in the framework forming die is complex, manual pre-embedded contact pins are required, the operation is complex, the working efficiency is low, the investment of manpower and material resources is increased, and the production cost is greatly increased. In addition, the adoption of a manual pre-embedding mode is difficult to ensure that the positions of the wiring pins in the framework body are consistent, and the wiring pins are difficult to ensure to have higher strength.

The publication numbers are: CN102751082B discloses a method for manufacturing a low-frequency transformer bobbin with low manufacturing cost, high production efficiency and high bobbin strength. The method comprises the steps of inserting a metal wire into a connector pin die, cutting the metal wire according to the required length of the connector pin to be used as the connector pin, electrifying to heat the connector pin inserted into the connector pin die to soften the connector pin, pressing one end of the connector pin into a T-shaped pin by using a hydraulic cylinder, combining the connector pin die and the connector pin with a framework die and performing injection molding to form a whole, so that the connector pin and the framework body are combined into a whole, the production efficiency is effectively improved, the production cost is reduced, the pressed novel T-shaped pin and other parts of the framework are injected into a whole together, the connection is firm, and higher connection strength can be guaranteed.

Disclosure of Invention

The invention discloses a transformer framework injection molding device aiming at the technical problems, which comprises an injection mold, a framework main body is produced through the injection mold, the device also comprises a moving device, the moving device drives a vertical plate to move transversely and longitudinally, a hot melting device, a clamping device, a cutting device and a feeding device are arranged on the vertical plate, a metal wire is arranged on the framework main body, the hot melting device comprises a synchronizing shaft, the synchronizing shaft is rotatably arranged on the vertical plate, a shifting fork is fixedly arranged on the synchronizing shaft, a sliding rail is fixedly arranged on the vertical plate, the sliding rail is a U-shaped sliding rail, a round shaft is matched in the sliding rail, the round shaft rotates and slides in the sliding rail, the shifting fork is matched with the round shaft, the round shaft rotates and slides in the shifting fork, one end of the round shaft is hinged with a moving rod, the lower end of the moving rod is fixedly provided with a heating component, the hot melting device also comprises a lifting component, the output end of the lifting component is provided with a round platform mold, the round platform mold is in a round platform shape, the metal wire sequentially passes through the feeding device, the cutting device and the clamping device from top to bottom, the metal wire is formed in the circular truncated cone die by driving the synchronous shaft to rotate, and the metal wire is driven by the moving device to be installed on the framework main body.

Further, lifting unit includes motor I, and fixed gear I that is equipped with in the pivot of motor I, one side meshing of gear I has the rack, and rack slidable mounting is in on the riser, the rack lower extreme is equipped with the horizontal pole, and the fixed round platform mould that is equipped with on the horizontal pole.

Further, a semicircular rack is fixedly arranged on the synchronizing shaft, the semicircular rack is meshed with the rack, the synchronizing shaft is driven to rotate through the semicircular rack, the rack is connected with the cross rod in a sliding mode, a spring is fixedly arranged between the rack and the cross rod, a torsional spring is fixedly arranged between the synchronizing shaft and the vertical plate, and the circular truncated cone die is in contact with the lower end of the clamping device after rising and cannot move continuously.

Furthermore, a shifting block is fixedly installed on the rack, when the shifting fork drives the round shaft to move to the vertical section of the sliding rail, the shifting fork is separated from the round shaft, and the upper end of the shifting block is in contact with the round shaft.

Further, cutting device is including the installation piece, installation piece fixed mounting in on the riser, the fixed motor III that is equipped with in the installation piece, the fixed gear II that is equipped with in motor III's the pivot, the rotatory cutting knife that is equipped with on the installation piece, one side of cutting knife sets up the profile of tooth structure and meshes with gear II, and the eccentric position of cutting knife sets up the round hole, sets up the cutting edge in the round hole, the wire passes the round hole.

Further, clamping device includes fixed plate I and fixed plate II, and fixed plate I and II fixed mounting of fixed plate are in on the riser, slide between fixed plate I and the fixed plate II and be equipped with extrusion piece I and extrusion piece II, and the centre leaves little through-hole when extrusion piece I and II laminating of extrusion piece, and the diameter of little through-hole is less than the wire diameter, drives extrusion piece I and II removal centre gripping wires of extrusion piece through the screw nut structure among the clamping device.

Furthermore, the moving device drives the vertical plate to move transversely through the gear rack structure, and drives the vertical plate to move longitudinally through the air cylinder, and the moving stroke corresponds to the position of the metal wire mounted on the framework main body.

Compared with the prior art, the invention has the beneficial effects that: (1) the invention integrates injection molding and installation of the thread needle, the thread needle head is manufactured through the hot melting device, and the thread needle is installed on the framework main body, so that the production efficiency is improved; (2) the wire aligning needle head is provided with the slide rail, the heating plate moves along the shape track of the slide rail, the movement of the heating plate and the circular truncated cone die does not interfere with each other, the wire aligning needle head can be manufactured under the control of the motor I, the process is simple, and the automation degree is high; (3) according to the invention, the shifting block is arranged on the rack, and the round shaft is driven by the shifting fork when moving to the vertical section of the slide rail, so that the torsion force of the shifting fork on the synchronizing shaft can be reduced, and the service life of parts is prolonged.

Drawings

Fig. 1 is an overall schematic view of the present invention.

FIG. 2 is a schematic view of a portion of the apparatus of the present invention.

FIG. 3 is a schematic view of another angle portion of the apparatus of the present invention.

Fig. 4 is a schematic view of the cutting device of the present invention.

FIG. 5 is a schematic view of a clamping device of the present invention.

FIG. 6 is a schematic view of a heat-melting apparatus according to the present invention.

FIG. 7 is a schematic view of another angle melting apparatus according to the present invention.

FIG. 8 is a schematic view of a portion of the components of the heat-staking apparatus of the present invention.

Fig. 9 is an enlarged view of a portion a in fig. 8.

Fig. 10 is a schematic view of the connection of the rack and the cross bar of the present invention.

Fig. 11 is a cross-sectional view of fig. 10.

Fig. 12 is an enlarged view of fig. 11 at B.

Reference numerals: 1-a hot melting device; 2-a clamping device; 3-a cutting device; 4-a mobile device; 5-a framework body; 6-a feeding device; 101-mounting plate; 102-motor I; 103-gear I; 104-a rack; 105-a half-round rack; 106-a shifting fork; 107-round axis; 108-a slide rail; 109-a travel bar; 110-a shifting block; 111-synchronizing shaft; 112-torsion spring; 113-a cross-bar; 114-a heating plate; 115-a circular truncated cone die; 116-heating wires; 117-a spring; 201-motor base; 202-motor II; 203-pulley I; 204-pulley II; 205-a belt; 206-thread plate I; 207-screw i; 208-extrusion block I; 209-extrusion block II; 210-thread plate II; 211-fixing plate i; 212-screw II; 213-fixing plate II; 214-pulley iii; 301-mounting block; 302-motor iii; 303-gear ii; 304-a cutting knife; 401-a strut; 402-transverse rack; 403-a slide plate; 404-motor IV; 405-gear iii; 406-a cylinder; 407-riser.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example (b): the transformer framework injection molding device shown in fig. 1-12 comprises a moving device 4, wherein the moving device 4 drives a vertical plate 407 to move transversely and longitudinally, a hot melting device 1, a clamping device 2, a cutting device 3 and a feeding device 6 are mounted on the vertical plate 407, a metal wire sequentially passes through the feeding device 6, the cutting device 3, the clamping device 2 and the hot melting device 1 from top to bottom, a framework main body 5 is produced through an injection mold, and the metal wire is mounted on the framework main body 5 through the control of the moving device 4.

The moving device 4 comprises two supporting rods 401, a transverse rack 402 is fixedly arranged at the top ends of the two supporting rods 401, a sliding plate 403 is slidably arranged on one side of the transverse rack 402, a motor IV 404 is fixedly arranged on the sliding plate 403, a gear III 405 is fixedly arranged on a rotating shaft of the motor IV 404, the gear III 405 is meshed with the transverse rack 402, an air cylinder 406 is fixedly arranged at the lower end of the sliding plate 403, a vertical plate 407 is fixedly arranged on a cylinder arm of the air cylinder 406, and the vertical plate 407 is driven to move through the motor IV 404 and the air cylinder 406, so that the metal wire is arranged at a specified position on the framework main body 5.

Cutting device 3 is including installing piece 301, installing piece 301 fixed mounting is on riser 407, the fixed motor III 302 that is equipped with on the installing piece 301, the fixed gear II 303 that is equipped with in the pivot of motor III 302, the rotatory cutting knife 304 that is equipped with on the installing piece 301, one side of cutting knife 304 sets up the profile of tooth structure and meshes with gear II 303, the eccentric position of cutting knife 304 sets up the round hole, set up the cutting edge in the round hole, the wire passes the round hole, start motor III 302 after clamping device 2 presss from both sides tight wire, motor III 302 drives cutting knife 304 and cuts off the wire.

The clamping device 2 comprises a fixing plate I211 and a fixing plate II 213, the fixing plate I211 and the fixing plate II 213 are fixedly connected with a vertical plate 407 through a mounting plate 101, a screw I207 and a screw II 212 are rotatably arranged between the fixing plate I211 and the fixing plate II 213, threads are arranged at two ends of the screw I207 and the screw II 212, a thread plate I206 and a thread plate II 210 are jointly arranged on the screw I207 and the screw II 212, a squeezing block I208 is fixedly arranged on the thread plate I206, a squeezing block II 209 is fixedly arranged on the thread plate II 210, the squeezing block I208 and the squeezing block II 209 are slidably arranged between the fixing plate I211 and the fixing plate II 213, a motor II 202 is fixedly arranged on the mounting plate 101 through a motor base 201, a belt wheel I203 is fixedly arranged on a rotating shaft of the motor II 202, a belt wheel II 204 is fixedly arranged on the screw I207, a belt wheel III 214 is fixedly arranged on the screw II 212, the belt wheel I203, the belt wheel II 204 and the belt wheel III 214 are driven through a belt 205, the starting motor II 202 drives the screw rod I207 and the screw rod II 212 to rotate, and then drives the extrusion block I208 and the extrusion block II 209 to be close to each other through the screw nut structure, and when the extrusion block I208 and the extrusion block II 209 contact each other, a small through hole is left in the middle, the diameter of the small through hole is smaller than the diameter of a metal wire, and the extrusion block I208 and the extrusion block II 209 can clamp the metal wire.

The hot melting device 1 comprises a mounting plate 101, the mounting plate 101 is fixedly connected with a vertical plate 407, a cylinder arm of a cylinder 406 can be fixedly connected with the mounting plate 101 or fixedly connected with the vertical plate 407, in this embodiment, the cylinder arm of the cylinder 406 is fixedly connected with the mounting plate 101, a motor I102 is fixedly arranged on the mounting plate 101, a gear I103 is fixedly arranged on a rotating shaft of the motor I102, a rack 104 is meshed on one side of the gear I103, the rack 104 is vertically and slidably arranged on the vertical plate 407, a cross rod 113 is slidably arranged at the lower end of the rack 104, a spring 117 is fixedly arranged between the cross rod 113 and the rack 104, a circular truncated cone mold 115 is fixedly arranged on the cross rod 113, the circular truncated cone mold 115 is in a circular truncated cone shape, wherein the motor I102, the gear I103 and the rack 104 form a lifting assembly, and in other embodiments, equivalent substitution can be performed as long as the circular truncated cone mold 115 can be driven to lift; when the circular truncated cone die 115 is raised to a predetermined position, the upper side of the circular truncated cone die 115 contacts the pressing block i 208 and the pressing block ii 209 and does not move any more.

In this embodiment, the hot melting apparatus 1 further includes a synchronizing shaft 111, the synchronizing shaft 111 is rotatably installed on a vertical plate 407, a torsion spring 112 is fixedly installed between the synchronizing shaft 111 and the vertical plate 407, a semicircular rack 105 and a fork 106 are fixedly installed on the synchronizing shaft 111, the semicircular rack 105 is engaged with the rack 104, a slide rail 108 is fixedly installed on the vertical plate 407, the slide rail 108 is U-shaped, a circular shaft 107 is fitted in the slide rail 108, the circular shaft 107 is fitted with the fork 106, the circular shaft 107 can rotate and slide in the fork 106 and the slide rail 108, the fork 106 rotates to shift the circular shaft 107 to move in the slide rail 108, a dial 110 is fixedly installed on the rack 104, when the circular shaft 107 moves into a vertical section of the slide rail 108, the fork 106 is disengaged from the circular shaft 107, at this time, an upper end of the dial 110 is just in contact with the circular shaft 107 and drives the circular shaft 107 to continue to move upward, a moving rod 109 is hinged to the circular shaft 107, a heating element is installed at a lower end of the moving rod 109, the heating assembly comprises a heating plate 114, the heating plate 114 is fixedly connected with the moving rod 109, a heating wire 116 is fixedly arranged in the heating plate 114, the metal wire extends into the circular table die 115 and is left with allowance, then the heating plate 114 moves upwards to heat the metal wire, and finally the lower end of the metal wire is in the same shape as the circular table die 115.

The working principle is as follows: the main body of the transformer framework is manufactured by using an injection mold, the main body is placed at a designated position, a metal wire penetrates through a feeding device 6, passes through a round hole on a cutting knife 304, penetrates through a clamping device 2 and reaches a circular table die 115, and is reserved with allowance, a motor I102 is started, a heating plate 114 is away from the circular table die 115 at the beginning, then the motor I102 drives a gear I103 to rotate, the gear I103 drives a rack 104 to ascend, the rack 104 drives the circular table die 115 to ascend through a cross rod 113, the rack 104 drives a semicircular rack 105 to rotate, the semicircular rack 105 drives a shifting fork 106 to rotate through a synchronizing shaft 111, the shifting fork 106 shifts a circular shaft 107 to slide in a sliding rail 108, the circular shaft 107 drives a moving rod 109, the moving rod 109 drives the heating plate 114 to be close to the circular table die 115, when the circular shaft 107 moves to a vertical section of the sliding rail 108, the shifting fork 106 is separated from the circular shaft 107, the shifting block 110 drives the circular shaft 107 to continuously ascend, when the die 115 is in contact with an extrusion block I208 and an extrusion block 209 II, the circular truncated cone die 115 does not rise any more, the heating plate 114 continues to rise at the moment, the spring 117 is stretched, finally, the upper end of the heating plate 114 is in contact with the lower end of the circular truncated cone die 115, the heating wire 116 is started to heat the metal wire in the circular truncated cone die 115, if the metal wire is not enough, the feeding device 6 can be started to feed the metal wire downwards, finally, the lower end of the metal wire is in the same shape as the circular truncated cone die 115, the motor II 202 is started at the moment, the motor II 202 drives the screw I207 and the screw II 212 through the belt 205, the screw II 210 and the screw I206 are close to each other at the moment, the metal wire is clamped by the extrusion block I208 and the extrusion block II 209, the motor III 302 is started after clamping, the motor III 302 drives the gear II 303 to rotate, the gear II 303 drives the cutting knife 304 to rotate, the metal wire is cut off, the motor IV 404 is started, the vertical plate 407 is driven to move transversely through the gear rack structure, when the designated position is reached, the air cylinder 406 is started, drive riser 407 decline, the wire aligns the mounted position on the skeleton main part 5 this moment, reverse start motor I102, motor I102 drives rack 104 and descends, torsional spring 112 is with the energy storage release, the rotatory playback of supplementary synchronizing shaft 111, spring 117 resumes natural state gradually, heating plate 114 leaves round platform mould 115 earlier and keeps away from gradually during this period, when spring 117 becomes natural state, round platform mould 115 descends, drive the wire decline, continue to start cylinder 406, press the assigned position at skeleton main part 5 with the wire through round platform mould 115.

Claims

1. The utility model provides a transformer skeleton injection moulding device which characterized in that: including injection mold, produce skeleton main part (5) through injection mold, still include mobile device (4), mobile device (4) drive riser (407) horizontal and longitudinal movement, be equipped with hot melt device (1), clamping device (2), cutting device (3) and feeding device (6) on riser (407), install the wire on skeleton main part (5), hot melt device (1) includes synchronizing shaft (111), synchronizing shaft (111) is rotatory to be installed on riser (407), fixed shift fork (106) of being equipped with on synchronizing shaft (111), fixed slide rail (108) of being equipped with on riser (407), slide rail (108) are the U-shaped slide rail, slide rail (108) fit in have round axle (107), round axle (107) are at slide rail (108) internal rotation and slip, shift fork (106) and round axle (107) cooperate, round axle (107) are at shift fork (106) internal rotation and slip, one end of round axle (107) articulates there is carriage release lever (109), heating element is fixed to be equipped with of carriage release lever (109) lower extreme, hot melting device (1) still includes lifting unit, round platform mould (115) is equipped with to lifting unit's output, round platform mould (115) are round platform shape, the wire passes feed arrangement (6) from last to down in proper order, cutting device (3) and clamping device (2), make the wire shaping in round platform mould (115) through drive synchronizing shaft (111) rotation, the wire is driven by mobile device (4) and is installed on skeleton main part (5).

2. The transformer bobbin injection molding apparatus of claim 1, wherein: the lifting assembly comprises a motor I (102), a gear I (103) is fixedly arranged on a rotating shaft of the motor I (102), a rack (104) is meshed with one side of the gear I (103), the rack (104) is slidably arranged on the vertical plate (407), a cross rod (113) is arranged at the lower end of the rack (104), and the circular truncated cone die (115) is fixedly arranged on the cross rod (113).

3. The transformer bobbin injection molding apparatus of claim 2, wherein: fixed semicircle rack (105) of being equipped with on synchronizing shaft (111), semicircle rack (105) and rack (104) meshing, it is rotatory through semicircle rack (105) drive synchronizing shaft (111), rack (104) and horizontal pole (113) sliding connection, fixed spring (117) of being equipped with between rack (104) and horizontal pole (113), fixed torsional spring (112) of being equipped with between synchronizing shaft (111) and riser (407), round platform mould (115) rise the back with the lower extreme contact of clamping device (2), can't continue to remove.

4. The transformer bobbin injection molding apparatus of claim 3, wherein: the rack (104) is fixedly provided with a shifting block (110), when the shifting fork (106) drives the round shaft (107) to move to the vertical section of the sliding rail (108), the shifting fork (106) is separated from the round shaft (107), and the upper end of the shifting block (110) is in contact with the round shaft (107).

5. The transformer bobbin injection molding device according to claim 4, wherein: cutting device (3) are including installation piece (301), installation piece (301) fixed mounting is in on riser (407), be fixed with motor III (302) on installation piece (301), the fixed gear II (303) that is equipped with in the pivot of motor III (302), the rotatory cutting knife (304) of being equipped with on installation piece (301), one side of cutting knife (304) sets up the profile of tooth structure and meshes with gear II (303), the eccentric position of cutting knife (304) sets up the round hole, sets up the cutting edge in the round hole, the wire passes the round hole.

6. The transformer bobbin injection molding apparatus of claim 5, wherein: clamping device (2) are including fixed plate I (211) and fixed plate II (213), and fixed plate I (211) and fixed plate II (213) fixed mounting are in on riser (407), slip between fixed plate I (211) and fixed plate II (213) and be equipped with extrusion piece I (208) and extrusion piece II (209), centre when extrusion piece I (208) and extrusion piece II (209) laminate leaves little through-hole, the diameter of little through-hole is less than the wire diameter, drives extrusion piece I (208) and extrusion piece II (209) through the screw nut structure in clamping device (2) and removes the centre gripping wire.

7. The transformer bobbin injection molding apparatus of claim 6, wherein: the moving device (4) drives the vertical plate (407) to move transversely through the gear rack structure, the vertical plate (407) is driven to move longitudinally through the air cylinder (406), and the moving stroke corresponds to the position of the metal wire mounted on the framework main body (5).