A hot pressing device and process for transformer insulation parts

Abstract

The invention discloses a hot pressing device and process for transformer insulating parts, and specifically relates to the technical field of transformers, comprising a device base, a turning mechanism is fixedly installed at the middle of the top end of the device base, two hot pressing bottom groups are arranged on the turning mechanism, the hot pressing bottom group includes a plurality of hot pressing bottom molds distributed in a ring array, a device top frame is fixedly installed at the middle of the top end of the device base, a plurality of telescopic cylinders are fixedly installed on the device top frame, and two hot pressing top molds corresponding to the hot pressing bottom group are fixedly installed at the driving end of the telescopic cylinder. According to the invention, by arranging the turning mechanism and the plurality of hot pressing bottom molds, and using the hot pressing top mold in combination, two transformer insulating parts can be formed by hot pressing in sequence and continuously, thereby improving the hot pressing processing efficiency of the transformer insulating parts, facilitating the automatic rotation of the transformer insulating parts after the hot pressing processing, and using a material withdrawal sleeve, a push plate and a cam in combination for auxiliary automatic material withdrawal of subsequent transformer insulating parts.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, and in particular to a hot pressing device and process for transformer insulation. Background Art

[0002] Transformer insulation refers to the components used in transformers to isolate, support and fix the wires and other parts of electrical equipment, and to prevent current leakage, short circuit and other faults. According to different uses and requirements, transformer insulation can be divided into many types, including insulation boards, insulation tiles, insulation tubes, insulation sleeves, insulation gaskets, insulation paper, etc. Transformer insulation can isolate conductors, support conductors, prevent electric shock and protect transformers;

[0003] Traditionally, hot pressing of transformer insulation parts involves placing a plate-shaped insulation blank on a hot pressing bottom die, and hot pressing the plate-shaped insulation blank by controlling the upper hot pressing top die to move downward to form transformer insulation parts. Subsequently, the hot-pressed transformer insulation parts are manually removed. Manual material removal is inefficient. Therefore, we propose a hot pressing device and process for transformer insulation parts to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a hot pressing device and process for transformer insulation to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hot pressing device for transformer insulating parts, comprising a device base, a turning mechanism is fixedly installed at the middle of the top end of the device base, two hot pressing bottom groups are arranged on the turning mechanism, the hot pressing bottom group includes a plurality of hot pressing bottom molds distributed in a ring array, a device top frame is fixedly installed at the middle of the top end of the device base, a plurality of telescopic cylinders are fixedly installed on the device top frame, two hot pressing top molds corresponding to the hot pressing bottom group are fixedly installed on the driving end of the telescopic cylinder, a support frame is fixedly installed on one side of the top end of the device base, a feeding mechanism is fixedly installed on the top end of the support frame, a plate-shaped insulating part blank is arranged on the feeding mechanism, and a belt conveyor is arranged below the turning mechanism.

[0006] As a preferred technical solution of the present invention, the flipping mechanism includes two symmetrically distributed flipping vertical frames, which are fixedly installed in the middle of the top end of the device base, and a flip tube is rotatably installed on the top of the flipping vertical frame, and a flip cylinder seat is fixedly installed between the two flip tubes. The outer side of the flip cylinder seat is provided with a mounting groove used in conjunction with the hot pressing bottom mold, and the mounting groove is provided with a plurality of corresponding to the hot pressing bottom mold. The outer side of the hot pressing bottom mold is fixedly sleeved with a mounting frame, and the hot pressing bottom mold is movably clamped in the corresponding mounting groove, and the mounting frame is fixedly installed on the flip cylinder seat by bolts.

[0007] As a preferred technical solution of the present invention, the opposite ends of the flip tube are fixedly installed with driven worm gears, the outer side of the flip longitudinal frame is fixedly installed with a first motor, the driving end of the first motor is fixedly installed with a driving worm, and the driving worm is meshingly connected with the driven worm gear.

[0008] As a preferred technical solution of the present invention, the driving worm is rotatably mounted on the corresponding flip longitudinal frame.

[0009] As a preferred technical solution of the present invention, the inner wall of the hot pressing bottom mold is fixedly provided with a plurality of material return sleeves, a push plate is movably provided on the side of the material return sleeve close to the inner wall of the hot pressing bottom mold, the surface of the push plate is flush with the inner wall of the hot pressing bottom mold, a working cavity is opened in the material return sleeve, a material return shaft is fixedly installed in the middle of the bottom end of the push plate, the end of the material return shaft away from the push plate passes through the material return sleeve and extends to the flip cylinder seat, a limiting ring is slidingly provided on the bottom of the working cavity, the limiting ring is fixedly sleeved on the outer side of the material return shaft, a spring is provided between the side of the limiting ring close to the push plate and the inner wall of the working cavity.

[0010] As a preferred technical solution of the present invention, a driving frame is fixedly installed at one end of the multiple material withdrawal shafts at the position of the hot pressing bottom mold away from the push plate, a connecting column is provided in the middle of the flip tube and the flip cylinder seat, a cam corresponding to the hot pressing bottom group is fixedly installed on the outer side of the connecting column, the cam and the driving frame are used in conjunction with each other, both ends of the connecting column extend out of the outer side of the corresponding flip tube, both ends of the connecting column are fixedly installed with a stabilizing frame, and the stabilizing frame is fixedly installed on the top of the device base.

[0011] As a preferred technical solution of the present invention, the feeding mechanism includes two symmetrically distributed feeding side frames, the two ends of the two feeding side frames are rotatably installed with feeding rollers, the outer movable sleeves of the two feeding rollers are provided with feeding transmission belts, the outer wall of the feeding transmission belt is fixedly installed with multiple groups of limiting side protrusions corresponding to the hot pressing bottom group, the outer wall of the feeding transmission belt is fixedly installed with multiple limiting horizontal bars corresponding to the hot pressing bottom group, the top side of the feeding side frame is fixedly installed with a first frame, and the first frame is fixedly installed with two stacked Frame, two groups of positioning parts corresponding to the hot pressing bottom group are provided on the side of the feeding transmission belt away from the stacking frame, the positioning parts include two symmetrically distributed L-shaped positioning frames, and the bottoms of the opposite sides of the L-shaped positioning frames are fixedly installed with limit strips, and a second frame is fixedly installed on the side of the feeding side frame away from the stacking frame, and two groups of third frames corresponding to the hot pressing bottom group are fixedly installed on the inner side of the second frame, and a two-way cylinder is fixedly installed on the third frame, and both driving ends of the two-way cylinder are fixedly installed with mounting seats, and the mounting seats are fixedly installed with the corresponding L-shaped positioning frames.

[0012] As a preferred technical solution of the present invention, a second motor is fixedly mounted on the side end of one of the feeding side frames, and a driving end of the second motor and an end portion of a corresponding feeding roller are fixedly mounted.

[0013] As a preferred technical solution of the present invention, a linear electric cylinder is provided at the bottom end of the loading side frame, and the linear electric cylinder is fixedly installed on the top of the support frame. A mounting frame is fixedly installed at the driving end of the linear electric cylinder, and the mounting frame is fixedly installed to the bottom end of the corresponding loading side frame.

[0014] A hot pressing process for transformer insulation parts comprises the following steps:

[0015] Step 1, stack a plurality of plate-like insulating blanks and place them in a corresponding stacking frame, control the linear electric cylinder to drive the mounting frame and the feeding side frame to move horizontally, thereby driving the feeding transmission belt and the positioning piece to move horizontally, and move the positioning piece to vertically correspond to the position of the upper hot pressing bottom mold, control the second motor to drive the corresponding feeding roller to rotate, thereby driving the feeding transmission belt to automatically transmit, the plate-like insulating blank at the bottom position automatically falls on the feeding transmission belt, and is placed between two adjacent limiting horizontal bars and the corresponding multiple limiting side convexities for limiting, and the limited plate-like insulating blank is driven to be transmitted through the automatic transmission of the feeding transmission belt, and the plate-like insulating blank at the bottom position is moved out of the stacked multiple plate-like insulating blanks, and at the same time, the upper surface of the limiting horizontal bar and the lower surface of the second to last plate-like insulating blank Surface contact is used to prevent the penultimate plate-shaped insulating component blank from falling on the feeding conveyor belt until the plate-shaped insulating component blank at the bottom position is completely moved out of the stacked multiple plate-shaped insulating component blanks. At this time, the original penultimate plate-shaped insulating component blank falls on the feeding conveyor belt and is placed between the corresponding two adjacent limiting horizontal bars and the corresponding multiple limiting side protrusions for limiting, so that the plate-shaped insulating component blank at the bottom of the stacked multiple plate-shaped insulating component blanks is moved out, and the moved plate-shaped insulating component blank is automatically moved between the two L-shaped positioning frames in the corresponding positioning parts, and is placed on the limiting bar for support, and the corresponding mounting seats on both sides and the L-shaped positioning frames are driven to move back to back by controlling the opening of the two-way cylinder, and the plate-shaped insulating component blank supported on the limiting bar automatically falls into the corresponding hot pressing bottom mold, and multiple plate-shaped insulating component blanks are automatically fed;

[0016] Step 2: Control the linear electric cylinder to drive the mounting frame and the feeding side frame to move horizontally again, thereby driving the feeding transmission belt and the positioning piece to move horizontally, and move the positioning piece out of the flip mechanism to reset it. Then, control the telescopic cylinder to drive the two hot pressing top molds to move downward steadily, so as to realize the pressing of the hot pressing top mold and the corresponding hot pressing bottom mold, and simultaneously form two transformer insulation parts by hot pressing, and then reset the hot pressing top mold;

[0017] Step three, control and start the first motor to drive the driving worm to drive the driven worm gear to rotate, thereby driving the flip tube to rotate on the top of the corresponding flip longitudinal frame, and then driving the flip cylinder seat to rotate, thereby driving multiple hot pressing bottom molds to rotate, and the two transformer insulating parts rotate to the lower position. At this time, the cam contacts the driving frame on the hot pressing bottom mold rotated to the lower position, and the cam pushes the driving frame to move to the side close to the push plate, thereby automatically driving the corresponding position material withdrawal axis to move to the side close to the push plate, and the push plate extends a material withdrawal sleeve to assist in pushing the transformer insulating part in the hot pressing bottom mold, and the transformer insulating part assists in pushing out the hot pressing bottom mold, and the transformer insulating part is automatically withdrawn, and the transformer insulating part falls on the belt conveyor, and the transformer insulating part is transported after hot pressing processing;

[0018] While rotating, another set of hot pressing bottom molds moves to the upper position, and continues to load the plate-shaped insulation blanks and continue the hot pressing process.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting a turning mechanism and multiple hot pressing bottom molds, and using a hot pressing top mold, two transformer insulating parts can be formed by hot pressing in sequence, which improves the hot pressing processing efficiency of the transformer insulating parts, facilitates the automatic rotation of the transformer insulating parts after hot pressing, and cooperates with the use of a stripping sleeve, a push plate and a cam to perform auxiliary automatic stripping of subsequent transformer insulating parts.

[0021] 2. By providing a feeding mechanism, the bottommost plate-shaped insulating blank of the stacked multiple plate-shaped insulating blanks can be removed, thereby realizing automatic feeding of multiple plate-shaped insulating blanks, further improving the hot pressing processing efficiency of transformer insulating parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the present invention.

[0024] Figure 2 is a schematic diagram of the structural connection of the flip mechanism in the present invention,

[0025] Figure 3 It is a schematic diagram of the structural connection between the turning mechanism and the hot pressing bottom mold in the present invention,

[0026] Figure 4Schematic diagram of the structural connection between the hot pressing bottom die and the material withdrawal sleeve in the present invention.

[0027] Figure 5 For the present invention Figure 4 The enlarged view of point A in the middle.

[0028] Figure 6 It is a structural schematic diagram of the feeding mechanism in the present invention,

[0029] Figure 7 For the present invention Figure 6 The enlarged view of point B in the middle.

[0030] Figure 8 For the present invention Figure 6 Enlarged view of point C in the middle.

[0031] In the figure: 1, device base; 2, turning mechanism; 3, hot pressing bottom mold; 31, installation frame; 4, device top frame; 41, telescopic cylinder; 5, hot pressing top mold; 6, support frame; 7, feeding mechanism; 8, plate-shaped insulating blank; 9, material withdrawal sleeve; 10, belt conveyor; 21, turning vertical frame; 22, turning tube; 23, turning cylinder seat; 201, installation groove; 24, driven worm gear; 25, first motor; 26, driving worm; 901, working chamber; 91, push plate; 92, material withdrawal shaft; 93. Limiting ring; 94. Spring; 95. Driving frame; 96. Connecting column; 97. Cam; 98. Stabilizing frame; 71. Feeding side frame; 72. Feeding roller; 73. Feeding transmission belt; 731. Limiting side cam; 732. Limiting horizontal bar; 74. First frame; 741. Stacking frame; 75. L-shaped positioning frame; 751. Limiting bar; 76. Second frame; 761. Third frame; 762. Bidirectional cylinder; 763. Mounting seat; 77. Second motor; 78. Linear electric cylinder; 79. Mounting frame. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example: Figure 1-8As shown, the present invention provides a hot pressing device for transformer insulation parts, including a device base 1, a turning mechanism 2 is fixedly installed at the middle of the top of the device base 1, two hot pressing bottom groups are arranged on the turning mechanism 2, each of the hot pressing bottom groups includes a plurality of hot pressing bottom molds 3 distributed in a ring array, a device top frame 4 is fixedly installed at the middle of the top of the device base 1, a plurality of telescopic cylinders 41 are fixedly installed on the device top frame 4, and two hot pressing top molds 5 corresponding to the hot pressing bottom group are fixedly installed at the driving end of the telescopic cylinder 41 When in use, the telescopic cylinder 41 is controlled to open and drive the two hot pressing top molds 5 to move downward stably, so as to realize the pressing of the hot pressing top mold 5 and the corresponding hot pressing bottom mold 3, which is convenient for the subsequent hot pressing processing of the transformer insulating parts. A support frame 6 is fixedly installed on one side of the top of the device base 1, and a feeding mechanism 7 is fixedly installed on the top of the support frame 6. A plate-shaped insulating part blank 8 is arranged on the feeding mechanism 7. A belt conveyor 10 is arranged under the turning mechanism 2. By setting the belt conveyor 10, the transformer insulating parts after hot pressing processing can be transported.

[0034] The flip mechanism 2 includes two symmetrically distributed flip longitudinal frames 21, the flip longitudinal frames 21 are fixedly installed at the middle of the top end of the device base 1, a flip tube 22 is rotatably installed on the top of the flip longitudinal frame 21, and a flip cylinder seat 23 is fixedly installed between the two flip tubes 22, the flip tube 22 is convenient to rotate at the top of the corresponding flip longitudinal frame 21, thereby driving the flip cylinder seat 23 to rotate, the outer side of the flip cylinder seat 23 is provided with a mounting groove 201 used in conjunction with the hot pressing bottom mold 3, the mounting groove 201 is provided with a plurality of corresponding to the hot pressing bottom mold 3, the outer side of the hot pressing bottom mold 3 is fixedly sleeved with a mounting frame 31, the hot pressing bottom mold 3 is movably clamped in the corresponding mounting groove 201, the mounting frame 31 is fixedly installed on the flip cylinder seat 23 by bolts, the hot pressing bottom mold 3 and the flip cylinder seat 23 are clamped and fixed, and the hot pressing bottom mold 3 can be disassembled, inspected and replaced by removing the bolts.

[0035] The opposite ends of the flip tube 22 are fixedly mounted with a driven worm gear 24, the outer side of the flip longitudinal frame 21 is fixedly mounted with a first motor 25, the driving end of the first motor 25 is fixedly mounted with a driving worm 26, and the driving worm 26 is rotatably mounted on the corresponding flip longitudinal frame 21; the driving worm 26 and the driven worm gear 24 are meshingly connected, and the first motor 25 is controlled to start to drive the driving worm 26 to drive the driven worm gear 24 to rotate, thereby driving the flip tube 22 to rotate at the top of the corresponding flip longitudinal frame 21, and then driving the flip tube seat 23 to rotate, thereby driving multiple hot pressing bottom molds 3 to rotate, so as to facilitate the automatic material withdrawal of the transformer insulation parts after the subsequent hot pressing process.

[0036] The inner wall of the hot pressing bottom mold 3 is fixedly provided with a plurality of material withdrawal sleeves 9, and a push plate 91 is movably provided on one side of the material withdrawal sleeve 9 close to the inner wall of the hot pressing bottom mold 3. The surface of the push plate 91 is flush with the inner wall of the hot pressing bottom mold 3. The transformer insulating part is retained in the corresponding hot pressing bottom mold 3 after hot pressing. A working cavity 901 is provided in the material withdrawal sleeve 9, and a material withdrawal shaft 92 is fixedly installed in the middle of the bottom end of the push plate 91. The end of the material withdrawal shaft 92 away from the push plate 91 passes through the material withdrawal sleeve 9 and extends to the flip cylinder seat 23. The working cavity 901 The bottom sliding card is provided with a limiting ring 93, and the limiting ring 93 is fixedly sleeved on the outer side of the material withdrawal shaft 92. A spring 94 is provided between the side of the limiting ring 93 close to the push plate 91 and the inner wall of the working chamber 901. By driving the material withdrawal shaft 92 to move toward the side close to the push plate 91, the push plate 91 extends a material withdrawal sleeve 9 to assist in pushing the transformer insulating parts in the hot pressing bottom mold 3. The transformer insulating parts assist in pushing out the hot pressing bottom mold 3, and the transformer insulating parts are automatically withdrawn. At the same time, the limiting ring 93 moves toward the side close to the push plate 91 to squeeze the corresponding spring 94.

[0037] A driving frame 95 is fixedly installed at one end of the multiple material removal shafts 92 at the position of the hot pressing bottom mold 3 away from the push plate 91, and a connecting column 96 is provided in the middle of the flip tube 22 and the flip cylinder seat 23. The two ends of the connecting column 96 extend out of the outer side of the corresponding flip tube 22, and the two ends of the connecting column 96 are fixedly installed with a stabilizing frame 98, and the stabilizing frame 98 is fixedly installed on the top of the device base 1. The connecting column 96 is fixed by setting the stabilizing frame 98, and the rotation of the flip tube 22 and the flip cylinder seat 23 is not affected; a cam 97 corresponding to the hot pressing bottom group is fixedly installed on the outer side of the connecting column 96, and the cam 97 and the driving frame 95 are used in conjunction with each other. When the transformer insulating part is hot-pressed, it rotates to the lower position. At this time, the cam 97 contacts the driving frame 95 on the hot pressing bottom mold 3 rotated to the lower position, and the cam 97 pushes the driving frame 95 to move to the side close to the push plate 91, thereby automatically driving the material removal shaft 92 at the corresponding position to move to the side close to the push plate 91.

[0038] The feeding mechanism 7 comprises two symmetrically distributed feeding side frames 71, and feeding rollers 72 are rotatably mounted on the two ends of the two feeding side frames 71, and feeding transmission belts 73 are movably sleeved on the outer sides of the two feeding rollers 72, and a second motor 77 is fixedly mounted on the side end of one of the feeding side frames 71, and the driving end of the second motor 77 is fixedly mounted on the end of the corresponding feeding roller 72, and the corresponding feeding roller 72 is driven to rotate by controlling the second motor 77 to start, thereby driving the feeding transmission belt 73 to automatically transmit;

[0039] A first frame 74 is fixedly installed on one side of the top of the feeding side frame 71, and two stacking frames 741 corresponding to the hot pressing bottom group are fixedly installed on the first frame 74. When in use, multiple plate-shaped insulating blanks 8 are stacked and placed in the corresponding stacking frames 741;

[0040] The outer wall of the feeding transmission belt 73 is fixedly installed with multiple groups of limiting side protrusions 731 corresponding to the hot pressing bottom group, and the outer wall of the feeding transmission belt 73 is fixedly installed with multiple limiting horizontal bars 732 corresponding to the hot pressing bottom group, wherein a gap of the thickness of the plate-like insulating blank 8 is left between the bottom end of the stacking frame 741 and the feeding transmission belt 73, so that the plate-like insulating blank 8 at the bottom position can automatically fall on the feeding transmission belt 73 and be placed between two adjacent limiting horizontal bars 732 and the corresponding multiple limiting side protrusions 731 for limiting. The plate-like insulating blank 8 that is limited is driven to be transmitted through the automatic transmission of the feeding transmission belt 73, and the plate-like insulating blank 8 at the bottom position is moved out The stacked multiple plate-like insulating member blanks 8, at the same time, the upper surface of the limiting horizontal bar 732 is in contact with the lower surface of the penultimate plate-like insulating member blank 8, preventing the penultimate plate-like insulating member blank 8 from falling on the feeding conveyor belt 73, until the plate-like insulating member blank 8 at the bottom position is completely moved out of the stacked multiple plate-like insulating member blanks 8. At this time, the original penultimate plate-like insulating member blank 8 falls on the feeding conveyor belt 73 and is placed between the corresponding two adjacent limiting horizontal bars 732 and the corresponding multiple limiting side protrusions 731 for limiting, so that the plate-like insulating member blank 8 at the bottom of the stacked multiple plate-like insulating member blanks 8 is moved out, which is convenient for the subsequent automatic feeding of the plate-like insulating member blanks 8;

[0041] The feeding conveyor belt 73 is provided with two sets of positioning members corresponding to the hot pressing bottom group on one side away from the stacking frame 741. The positioning members include two symmetrically distributed L-shaped positioning frames 75. The bottoms of the opposite sides of the L-shaped positioning frames 75 are fixedly installed with limit strips 751. The feeding conveyor belt 73 automatically transmits and automatically moves the removed plate-shaped insulating blank 8 to between the two L-shaped positioning frames 75 in the corresponding positioning members, and places them on the limit strips 751 for support.

[0042] A second frame 76 is fixedly installed on the side of the feeding side frame 71 away from the stacking frame 741, and two groups of third frames 761 corresponding to the hot pressing bottom group are fixedly installed on the inner side of the second frame 76, and a two-way cylinder 762 is fixedly installed on the third frame 761, and both driving ends of the two-way cylinder 762 are fixedly installed with a mounting seat 763, and the mounting seat 763 and the corresponding L-shaped positioning frame 75 are fixedly installed; by controlling the opening of the two-way cylinder 762, the corresponding mounting seats 763 on both sides and the L-shaped positioning frame 75 are driven to move back to back, and the plate-shaped insulating blank 8 supported on the limit strip 751 automatically falls into the corresponding hot pressing bottom mold 3, so that multiple plate-shaped insulating blanks 8 are automatically loaded.

[0043] The bottom end of the loading side frame 71 is provided with a linear electric cylinder 78, and the linear electric cylinder 78 is fixedly installed on the top of the support frame 6. The driving end of the linear electric cylinder 78 is fixedly installed with a mounting frame 79. The mounting frame 79 and the bottom end of the corresponding loading side frame 71 are fixedly installed. The linear electric cylinder 78 is controlled to start and drive the mounting frame 79 and the loading side frame 71 to move horizontally, thereby driving the loading transmission belt 73 and the positioning part to move horizontally.

[0044] A hot pressing process for transformer insulation parts comprises the following steps:

[0045] Step 1, stack a plurality of plate-like insulating blanks 8 and place them in the corresponding stacking frame 741, control the linear electric cylinder 78 to drive the mounting frame 79 and the feeding side frame 71 to move horizontally, thereby driving the feeding transmission belt 73 and the positioning member to move horizontally, and move the positioning member to a position vertically corresponding to the position of the upper hot pressing bottom mold 3, control the second motor 77 to drive the corresponding feeding roller 72 to rotate, thereby driving the feeding transmission belt 73 to automatically transmit, and the plate-like insulating blank 8 at the bottom position automatically falls on the feeding transmission belt 73, and is placed between two adjacent limiting horizontal bars 732 and the corresponding plurality of limiting side protrusions 731 for limiting, and the plate-like insulating blank 8 with limited positioning is driven to be transmitted through the automatic transmission of the feeding transmission belt 73, and the plate-like insulating blank 8 at the bottom position is moved out of the stacked plurality of plate-like insulating blanks 8, and at the same time, the upper surface of the limiting horizontal bar 732 and the penultimate plate-like insulating blank 8 The lower surface contacts to prevent the penultimate plate-shaped insulating member stock 8 from falling on the feeding transmission belt 73 until the plate-shaped insulating member stock 8 at the bottom position is completely moved out of the stacked multiple plate-shaped insulating member stock 8. At this time, the original penultimate plate-shaped insulating member stock 8 falls on the feeding transmission belt 73 and is placed between the corresponding two adjacent limiting horizontal bars 732 and the corresponding multiple limiting side protrusions 731 for limiting, so that the plate-shaped insulating member stock 8 at the bottom of the stacked multiple plate-shaped insulating member stock 8 is moved out, and the removed plate-shaped insulating member stock 8 is automatically moved between the two L-shaped positioning frames 75 in the corresponding positioning member, and is placed on the limiting bar 751 for support, and the corresponding two-way cylinder 762 is controlled to open to drive the corresponding two-side mounting seats 763 and the L-shaped positioning frame 75 to move back to back, and the plate-shaped insulating member stock 8 supported on the limiting bar 751 automatically falls into the corresponding hot pressing bottom mold 3, and multiple plate-shaped insulating member stock 8 are automatically fed;

[0046] Step 2, control the linear electric cylinder 78 to drive the mounting frame 79 and the feeding side frame 71 to move horizontally, thereby driving the feeding transmission belt 73 and the positioning piece to move horizontally, and move the positioning piece out of the flip mechanism 2 to reset, and then control the telescopic cylinder 41 to drive the two hot pressing top molds 5 to move downward stably, so as to realize the pressing of the hot pressing top mold 5 and the corresponding hot pressing bottom mold 3, and simultaneously hot press to form two transformer insulation parts, and then reset the hot pressing top mold 5;

[0047] Step three, control the first motor 25 to start and drive the driving worm 26 to drive the driven worm gear 24 to rotate, thereby driving the flip tube 22 to rotate on the top of the corresponding flip vertical frame 21, and then driving the flip cylinder seat 23 to rotate, thereby driving multiple hot pressing bottom molds 3 to rotate, and the two transformer insulating parts rotate to the lower position. At this time, the cam 97 contacts the driving frame 95 on the hot pressing bottom mold 3 rotated to the lower position, and the cam 97 pushes the driving frame 95 to move to the side close to the push plate 91, thereby automatically driving the corresponding position of the material withdrawal shaft 92 to move to the side close to the push plate 91, and the push plate 91 extends the material withdrawal sleeve 9 to assist in pushing the transformer insulating parts in the hot pressing bottom mold 3, and the transformer insulating parts assist in pushing out the hot pressing bottom mold 3, so as to automatically withdraw the transformer insulating parts, and the transformer insulating parts fall on the belt conveyor 10 to transport the transformer insulating parts after hot pressing processing;

[0048] While rotating, another set of hot pressing bottom molds 3 moves to the upper position, and continues to load the plate-shaped insulation blank 8 and continue the hot pressing process.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot pressing device for transformer insulation, comprising a device base (1), characterized in that: A turning mechanism (2) is fixedly mounted at the middle of the top of the device base (1), two hot pressing bottom groups are arranged on the turning mechanism (2), the hot pressing bottom groups include a plurality of hot pressing bottom molds (3) distributed in a ring array, a device top frame (4) is fixedly mounted at the middle of the top of the device base (1), a plurality of telescopic cylinders (41) are fixedly mounted on the device top frame (4), two hot pressing top molds (5) corresponding to the hot pressing bottom groups are fixedly mounted at the driving end of the telescopic cylinder (41), a support frame (6) is fixedly mounted on one side of the top of the device base (1), a feeding mechanism (7) is fixedly mounted on the top of the support frame (6), a plate-shaped insulating blank (8) is arranged on the feeding mechanism (7), and a belt conveyor (10) is arranged below the turning mechanism (2); The feeding mechanism (7) comprises two symmetrically distributed feeding side frames (71), the two ends of the two feeding side frames (71) are rotatably mounted with feeding rollers (72), the outer sides of the two feeding rollers (72) are movably sleeved with feeding transmission belts (73), the outer wall of the feeding transmission belt (73) is fixedly mounted with a plurality of groups of limiting side protrusions (731) corresponding to the hot pressing bottom group, the outer wall of the feeding transmission belt (73) is fixedly mounted with a plurality of limiting horizontal bars (732) corresponding to the hot pressing bottom group, a first frame (74) is fixedly mounted on one side of the top end of the feeding side frame (71), two stacking frames (741) corresponding to the hot pressing bottom group are fixedly mounted on the first frame (74), and the feeding transmission belt (73) is away from the hot pressing bottom group. One side of the stacking frame (741) is provided with two groups of positioning members corresponding to the hot pressing bottom group, the positioning members include two symmetrically distributed L-shaped positioning frames (75), the bottoms of the opposite sides of the L-shaped positioning frames (75) are fixedly installed with limiting strips (751), the side of the feeding side frame (71) away from the stacking frame (741) is fixedly installed with a second frame (76), the inner side of the second frame (76) is fixedly installed with two groups of third frames (761) corresponding to the hot pressing bottom group, a bidirectional cylinder (762) is fixedly installed on the third frame (761), both driving ends of the bidirectional cylinder (762) are fixedly installed with mounting seats (763), and the mounting seats (763) and the corresponding L-shaped positioning frames (75) are fixedly installed.

2. A hot pressing device for transformer insulation according to claim 1, characterized in that: The flip mechanism (2) comprises two symmetrically distributed flip longitudinal frames (21), the flip longitudinal frames (21) being fixedly mounted at the middle of the top end of the device base (1), a flip tube (22) being rotatably mounted on the top of the flip longitudinal frame (21), a flip cylinder seat (23) being fixedly mounted between the two flip tubes (22), a mounting groove (201) for use with a hot pressing bottom mold (3) being provided on the outer side of the flip cylinder seat (23), the mounting groove (201) being provided with a plurality of corresponding mounting grooves to the hot pressing bottom mold (3), a mounting frame (31) being fixedly sleeved on the outer side of the hot pressing bottom mold (3), the hot pressing bottom mold (3) being movably clamped in the corresponding mounting groove (201), and the mounting frame (31) being fixedly mounted on the flip cylinder seat (23) by bolts.

3. A hot pressing device for transformer insulation according to claim 2, characterized in that: A driven worm gear (24) is fixedly mounted on opposite ends of the flip tube (22), a first motor (25) is fixedly mounted on the outer side of the flip longitudinal frame (21), a driving worm (26) is fixedly mounted on the driving end of the first motor (25), and the driving worm (26) is meshingly connected with the driven worm gear (24).

4. A hot pressing device for transformer insulation according to claim 3, characterized in that: The driving worm (26) is rotatably mounted on the corresponding turning longitudinal frame (21).

5. A hot pressing device for transformer insulation according to claim 4, characterized in that: The inner wall of the hot pressing bottom mold (3) is fixedly provided with a plurality of material withdrawal sleeves (9); a push plate (91) is movably provided on a side of the material withdrawal sleeve (9) close to the inner wall of the hot pressing bottom mold (3); the surface of the push plate (91) is flush with the inner wall of the hot pressing bottom mold (3); an operating chamber (901) is provided in the material withdrawal sleeve (9); a material withdrawal shaft (92) is fixedly installed in the middle of the bottom end of the push plate (91); the end of the material withdrawal shaft (92) away from the push plate (91) passes through the material withdrawal sleeve (9) and extends into the flip cylinder seat (23); a limiting ring (93) is slidably provided at the bottom of the operating chamber (901); the limiting ring (93) is fixedly sleeved on the outer side of the material withdrawal shaft (92); a spring (94) is provided between the side of the limiting ring (93) close to the push plate (91) and the inner wall of the operating chamber (901).

6. A hot pressing device for transformer insulation according to claim 5, characterized in that: A driving frame (95) is fixedly installed at one end of the multiple material withdrawal shafts (92) away from the push plate (91) at the position of the hot pressing bottom mold (3), and a connecting column (96) is provided in the middle of the turning tube (22) and the turning cylinder seat (23). A cam (97) corresponding to the hot pressing bottom group is fixedly installed on the outer side of the connecting column (96). The cam (97) and the driving frame (95) cooperate with each other. The two ends of the connecting column (96) extend out of the outer side of the corresponding turning tube (22). Both ends of the connecting column (96) are fixedly installed with a stabilizing frame (98), and the stabilizing frame (98) is fixedly installed on the top of the device base (1).

7. A hot pressing device for transformer insulation according to claim 6, characterized in that: A second motor (77) is fixedly mounted on the side end of one of the feeding side frames (71), and a driving end of the second motor (77) and an end portion of a corresponding feeding roller (72) are fixedly mounted.

8. A hot pressing device for transformer insulation according to claim 7, characterized in that: The bottom end of each loading side frame (71) is provided with a linear electric cylinder (78), and the linear electric cylinder (78) is fixedly mounted on the top end of the support frame (6). The driving end of each linear electric cylinder (78) is fixedly mounted with a mounting frame (79), and the mounting frame (79) is fixedly mounted to the bottom end of the corresponding loading side frame (71).

9. The hot pressing process of the hot pressing device for transformer insulation according to claim 8, characterized in that: The steps include: Step 1: stack a plurality of plate-shaped insulating blanks (8) and place them in a corresponding stacking frame (741), control the linear electric cylinder (78) to drive the mounting frame (79) and the feeding side frame (71) to move horizontally, thereby driving the feeding transmission belt (73) and the positioning member to move horizontally, and move the positioning member to a position vertically corresponding to the position of the upper hot pressing bottom mold (3), control the second motor (77) to drive the corresponding feeding roller (72) to rotate, thereby driving the feeding transmission belt (73) to automatically transmit, and finally The plate-shaped insulating blank (8) at the bottom position automatically falls on the feeding transmission belt (73) and is placed between two adjacent limiting horizontal bars (732) and the corresponding plurality of limiting side protrusions (731) for limiting. The plate-shaped insulating blank (8) at the bottom position is automatically transferred by the feeding transmission belt (73) to transfer the plate-shaped insulating blank (8) so that the plate-shaped insulating blank (8) at the bottom position is moved out of the stacked plurality of plate-shaped insulating blanks (8). At the same time, the upper surface of the limiting horizontal bar (732) and the penultimate plate-shaped insulating blank (8) are moved to the bottom position. The bottom surface of the plate-shaped insulating component (8) is contacted to prevent the penultimate plate-shaped insulating component blank (8) from falling onto the feeding conveyor belt (73) until the plate-shaped insulating component blank (8) at the bottom position is completely moved out of the stacked multiple plate-shaped insulating component blanks (8). At this time, the penultimate plate-shaped insulating component blank (8) falls onto the feeding conveyor belt (73) and is placed between two corresponding adjacent limiting horizontal bars (732) and multiple corresponding limiting side protrusions (731) for limiting, thereby limiting the bottom of the stacked multiple plate-shaped insulating component blanks (8). The plate-shaped insulating blank (8) is removed, and the removed plate-shaped insulating blank (8) is automatically moved between the two L-shaped positioning frames (75) in the corresponding positioning member, and is supported on the limit strip (751), and the corresponding mounting seats (763) on both sides and the L-shaped positioning frame (75) are driven to move in reverse by controlling the opening of the two-way cylinder (762), so that the plate-shaped insulating blank (8) supported on the limit strip (751) automatically falls into the corresponding hot pressing bottom mold (3), and multiple plate-shaped insulating blanks (8) are automatically loaded; Step 2: Control the linear electric cylinder (78) to start again to drive the mounting frame (79) and the feeding side frame (71) to move horizontally, thereby driving the feeding transmission belt (73) and the positioning member to move horizontally, and move the positioning member out of the flip mechanism (2) to reset, and then control the telescopic cylinder (41) to start and drive the two hot pressing top molds (5) to move downward stably, so as to realize the pressing of the hot pressing top mold (5) and the corresponding hot pressing bottom mold (3), and simultaneously hot press to form two transformer insulation parts, and then reset the hot pressing top mold (5); Step 3, control the first motor (25) to start driving the driving worm (26) to drive the driven worm gear (24) to rotate, thereby driving the flip tube (22) to rotate at the top of the corresponding flip vertical frame (21), and then driving the flip cylinder seat (23) to rotate, thereby driving the multiple hot pressing bottom molds (3) to rotate, and the two transformer insulating parts rotate to the lower position. At this time, the cam (97) contacts the driving frame (95) on the hot pressing bottom mold (3) rotated to the lower position, and the cam (97) pushes the driving frame (95) to move to the side close to the push plate (91), thereby automatically driving the corresponding position of the material removal shaft (92) to move to the side close to the push plate (91), and the push plate (91) extends a material removal sleeve (9) to assist in pushing the transformer insulating part in the hot pressing bottom mold (3), and the transformer insulating part assists in pushing the hot pressing bottom mold (3) to automatically remove the transformer insulating part, and the transformer insulating part falls on the belt conveyor (10) to transport the transformer insulating part after hot pressing processing; While rotating, another set of hot pressing bottom molds (3) moves to an upper position and continues to load the plate-shaped insulating component blank (8) and continue the hot pressing process.

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