A microwave oven transformer leakage sheet package insulation paper folding composite mechanism

Abstract

The utility model discloses a kind of microwave oven transformer magnetic flux leakage sheet package insulation paper folding composite mechanism, it is related to microwave oven production technical field.The utility model includes cutting assembly, the inside of rectangular groove is symmetrically provided with rotating roller in up and down distribution, the front of rotating roller located upside is equipped with motor, the right side of fixed plate lower wall is fixed with electric push rod, the lower wall of moving plate is fixed with cutting knife of lower wall and is arranged obliquely, cutting groove is opened in the position of cutting knife corresponding mounting plate;Two power output shafts of double-head motor are fixed with threaded rod, the upper side of corresponding mounting plate is symmetrically equipped with L-shaped block in the position of threaded rod, the left side and right side of supporting plate are symmetrically equipped with L-shaped strip located in the upper side of mounting plate.The utility model is automatically cut to preset specification to insulation paper by cutting assembly, improve work efficiency, insulation paper is wrapped outside magnetic flux leakage sheet using folding assembly, without manual operation to reduce labor intensity.

Description

Technical Field

[0001] This utility model belongs to the field of microwave oven manufacturing technology, and in particular relates to a folding composite mechanism for insulating paper wrapped around the magnetic leakage sheet of a microwave oven transformer. Background Technology

[0002] The working principle of a microwave oven transformer is mainly based on the principle of electromagnetic induction to change the AC voltage. When the mains power is applied to the input terminal, the primary coil, secondary coil and iron core of the transformer interact to increase the output voltage, thereby providing the required high voltage for the magnetron. However, without safety protection for the microwave oven transformer, a magnetic leakage sheet is also installed in the microwave oven transformer. When the microwave oven is unloaded or short-circuited, the magnetic leakage will reduce the secondary voltage to prevent the magnetron from being overloaded. In the existing technology, the outside of the magnetic leakage sheet is wrapped with insulating paper and installed inside the microwave oven transformer. However, in the actual production of microwave oven transformers, the insulating paper used to wrap the magnetic leakage sheet is cut manually, which reduces work efficiency. Furthermore, the existing technology of wrapping the magnetic leakage sheet with insulating paper is done manually, which increases the labor intensity of workers.

[0003] To address these issues, we provide a folding and composite mechanism for wrapping insulating paper around the magnetic leakage sheet of a microwave oven transformer. Utility Model Content

[0004] The purpose of this invention is to provide a folding composite mechanism for wrapping insulating paper around the magnetic leakage sheet of a microwave oven transformer. The cutting component automatically cuts the insulating paper to a preset specification, improving work efficiency. Furthermore, the folding component wraps the insulating paper around the magnetic leakage sheet, eliminating the need for manual operation and reducing labor intensity. This solves the problems of existing technologies where the insulating paper for wrapping magnetic leakage sheets is cut manually, leading to reduced work efficiency, and where the manual wrapping of the magnetic leakage sheet increases the labor intensity of workers.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a folding composite mechanism for insulating paper wrapped around a microwave oven transformer's magnetic leakage sheet. It includes a cutting assembly, which comprises a mounting plate positioned below the insulating paper roll. A rectangular groove is formed on the left side of the mounting plate, and rotating rollers are symmetrically arranged vertically along the inner side of the rectangular groove. A motor is positioned in front of the upper rotating roller, and a fixed plate is positioned above the motor. An electric push rod is fixed to the right side of the lower wall of the fixed plate, and a moving plate is fixed to the lower end of the electric push rod. A cutting blade with an inclined lower wall is fixed to the lower wall of the moving plate, and a cutting groove is formed on the mounting plate corresponding to the position of the cutting blade. The folding assembly includes a double-headed motor positioned below the right side of the mounting plate. Threaded rods are fixed to the two power output shafts of the double-headed motor, with the threads of the two threaded rods in opposite directions. L-shaped blocks are symmetrically arranged above the mounting plate at the positions of the threaded rods, and a support plate is positioned between the two L-shaped blocks. L-shaped strips are symmetrically arranged above the mounting plate on the left and right sides of the support plate.

[0006] The present invention is further provided that each of the four corner positions of the lower wall of the mounting plate is fixedly provided with a screw sleeve, the lower end of the screw sleeve is threadedly connected to a screw rod, the lower end of the screw rod is fixedly provided with a base plate, and the lower wall of the base plate is fixedly provided with an anti-slip pad.

[0007] The present invention is further configured such that the right end of the insulating paper roll passes through the space between the two rotating rollers and extends to the right, and vertical plates fixed to the mounting plate are fixed on both the front and rear sides of the lower wall of the fixed plate. The motor is fixedly connected to the vertical plates, and rotating shafts are fixed at the middle positions of the front and rear ends of the rotating rollers. The power output shaft of the motor is fixedly connected to the corresponding rotating shaft.

[0008] The present invention is further provided with a rotating rod at the middle position of the insulating paper roll, and side plates fixed to the fixing plate at the front and rear ends of the rotating rod. A placement groove is provided on the side plate corresponding to the position of the rotating rod, and a baffle fixed to the side plate is provided on the side of the placement groove away from the insulating paper roll.

[0009] The present invention is further configured such that guide rods fixed to the moving plate are symmetrically arranged at the front and rear of the electric push rod, and guide sleeves fixed to the mounting plate are provided with an external clearance fit on the guide rods.

[0010] The present invention is further configured such that a U-shaped plate is fixedly provided on the upper wall of the dual-head motor, a cylinder fixedly provided on the inner side of the U-shaped plate and fixed to the support plate, and a folding groove is provided on the mounting plate corresponding to the position of the support plate.

[0011] The present invention is further configured such that a strip-shaped groove is provided on the mounting plates corresponding to the front and rear of the support plate, and a convex plate that is threadedly connected to the threaded rod is provided in the internal gap of the strip-shaped groove. The convex plate is fixedly connected to the L-shaped block, and an electric telescopic rod is fixedly provided on the outer side wall of the L-shaped strip. An end plate that is fixed to the mounting plate is fixed at the outer end of the electric telescopic rod.

[0012] The present invention is further provided that the support plate has a positioning line on the upper wall corresponding to the mounting plate.

[0013] This utility model has the following beneficial effects: This invention features a cutting assembly. A controller activates a motor to rotate the insulating paper. The portion to be cut is located between two rotating rollers. When the upper roller rotates, it moves to the right to a preset length with the help of the lower roller. Then, the controller extends an electric push rod to move the cutting blade downwards and cut the insulating paper to the preset length. Because the cutting operation is controlled by a controller, no manual operation is required. It can also be performed simultaneously with the wrapping of the magnetic leakage sheet, thus improving work efficiency.

[0014] This invention utilizes a folding assembly. Insulating paper is placed above the folding groove using a reference positioning line. The magnetic leakage sheet is then placed above the insulating paper, near the center. A downward force is applied to the magnetic leakage sheet, causing it to enter the folding groove. The controller activates a dual-head motor, which drives a threaded rod to rotate. This causes two L-shaped blocks to move closer together, folding the front and rear sides of the magnetic leakage sheet. Finally, the two electric telescopic rods extend sequentially to achieve the folding effect. This eliminates the need for manual folding operations, reducing the labor intensity for workers. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall structural diagram of a microwave oven transformer's magnetic leakage sheet wrapped with insulating paper and folded composite mechanism.

[0017] Figure 2 This is a left-side structural view of a folding composite mechanism for wrapping insulating paper around the magnetic leakage sheet of a microwave oven transformer.

[0018] Figure 3 This is a right-side structural view of a folding composite mechanism for wrapping insulating paper around a magnetic leakage sheet in a microwave oven transformer.

[0019] Figure 4 for Figure 2 Partial structural diagram.

[0020] Figure 5 This is a bottom view of a folding composite mechanism for wrapping insulating paper around the magnetic leakage sheet of a microwave oven transformer.

[0021] Figure 6 for Figure 5 Partial structural diagram.

[0022] The attached diagram lists the components represented by each number as follows: 1-Insulating paper roll, 2-Cutting assembly, 201-Mounting plate, 201a-Rectangular groove, 201b-Threaded sleeve, 201c-Cutting groove, 201d-Folding groove, 201e-Positioning line, 201f-Strip groove, 202-Rotating rod, 203-Side plate, 203a-Baffle, 203b-Placement groove, 204-Fixing plate, 204a-Vertical plate, 204b-Guide sleeve, 205-Motor, 206-Rotating roller, 206a-Rotating... Driven shaft, 207-base plate, 207a-anti-slip pad, 207b-screw, 208-electric push rod, 209-moving plate, 209a-guide rod, 209b-cutting blade, 3-folding assembly, 301-electric telescopic rod, 301a-end plate, 301b-L-shaped strip, 302-L-shaped block, 303-support plate, 304-cylinder, 305-convex plate, 306-double-headed motor, 306a-threaded rod, 306b-U-shaped plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example

[0024] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This is the first embodiment of the present invention. This embodiment provides a folding and composite mechanism for insulating paper wrapped around a microwave oven transformer's magnetic leakage sheet. The mechanism includes a cutting assembly 2, which includes a mounting plate 201 positioned below the insulating paper roll 1. A rectangular groove 201a is formed on the left side of the mounting plate 201. Rotating rollers 206 are symmetrically arranged vertically on the inner side of the rectangular groove 201a. The top of the lower rotating roller 206 is higher than the upper wall of the mounting plate 201. A motor 205 is positioned in front of the upper rotating roller 206 to drive its rotation. The motor 205 can be a servo motor, making the feeding length of the insulating paper more accurate. A fixed plate 204 is provided above the motor 205. An electric push rod 208 is fixed on the right side of the lower wall of the fixed plate 204 for driving the cutting blade 209b to cut the magnetic leakage sheet. A movable plate 209 is fixed at the lower end of the electric push rod 208. A cutting blade 209b with an inclined lower wall is fixed on the lower wall of the movable plate 209. The cutting blade 209b and the movable plate 209 can be detached and fixed to facilitate the replacement of the worn cutting blade 209b. A cutting groove 201c is provided on the mounting plate 201 corresponding to the position of the cutting blade 209b. The cooperation between the cutting blade 209b and the cutting groove 201c can form a shearing force to cut the insulating paper. Specifically, screw sleeves 201b are fixed at the four corners of the lower wall of the mounting plate 201. The lower end of the screw sleeve 201b is threadedly connected to a screw rod 207b. The lower end of the screw rod 207b is fixed to a base plate 207. The lower wall of the base plate 207 is fixed to an anti-slip pad 207a. With the above arrangement, the anti-slip pad 207a can increase the friction between the microwave oven transformer leakage magnetic sheet insulation paper folding composite mechanism and the placement platform when it is placed. By operating the base plate 207 to rotate, the corresponding screw rod 207b will rotate. In this way, stable placement can be achieved when the anti-slip pads 207a on the lower walls of the four base plates 207 come into contact with the placement platform. The right end of the insulating paper roll 1 passes between the two rotating rollers 206 and extends to the right. The front and rear sides of the lower wall of the fixed plate 204 are fixed with vertical plates 204a that are fixed to the mounting plate 201. The motor 205 is fixedly connected to the vertical plates 204a. The rotating shafts 206a are fixed at the middle positions of the front and rear ends of the rotating rollers 206. The power output shaft of the motor 205 is fixedly connected to the corresponding rotating shafts 206a. A rotating rod 202 is provided at the middle position of the insulating paper roll 1 to provide support for the insulating paper roll 1. Side plates 203 fixed to the fixing plate 204 are provided at the front and rear ends of the rotating rod 202. A placement groove 203b is provided on the side plate 203 corresponding to the position of the rotating rod 202. The placement groove 203b can be arched to facilitate the placement and removal of the rotating rod 202 and prevent the rotating rod 202 from falling. A baffle 203a fixed to the side plate 203 is provided on the side of the placement groove 203b away from the insulating paper roll 1 to prevent the rotating rod 202 from moving axially. The electric push rod 208 is symmetrically provided with guide rods 209a fixed to the moving plate 209 at the front and rear. The guide rods 209a are fitted with guide sleeves 204b fixed to the mounting plate 201 with a clearance fit. The above arrangement can prevent the electric push rod 208 from tilting due to uneven force on the cutting blade 209b, which would cause damage. Furthermore, to increase the friction between the two rotating rollers 206 and the insulating paper during movement, an anti-slip sleeve can be fixed to the outer peripheral wall of the rotating rollers 206. In this state, the outer peripheral wall of the anti-slip sleeve squeezes the insulating paper, causing the rotating rollers 206 to rotate and drive the insulating paper to move. At the same time, to ensure the correct operation of the motor 205, it drives the movable end of the insulating paper to move to the right. Figure 2 As shown, the upper rotating roller 206 needs to rotate counterclockwise, while the lower rotating roller 206 rotates clockwise. The operation process of this embodiment is as follows: When the magnetic leakage sheet is folded, the controller controls the motor 205 to drive the upper rotating roller 206 to rotate counterclockwise and the lower rotating roller 206 to rotate clockwise, thereby causing the movable end of the insulating paper to move to the right. When the distance between the cutting blade 209b and the lower right end of the insulating paper is a preset distance, the controller controls the motor 205 to stop working and causes the electric push rod 208 to extend, driving the moving plate 209 and the cutting blade 209b to descend. Under the shearing action formed by the cooperation of the cutting blade 209b and the cutting groove 201c, the insulating paper is cut. Example

[0025] Please see Figure 1 , Figure 3 , Figure 5 and Figure 6 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the first embodiment in that: the folding assembly 3 includes a dual-head motor 306 located below the right side of the mounting plate 201. Threaded rods 306a are fixed to both power output shafts of the dual-head motor 306. The threads of the two threaded rods 306a are opposite in direction, causing the dual-head motor 306 to drive the two threaded rods 306a to rotate, causing the two convex plates 305 to move closer or further apart. The location of the threaded rods 306a corresponds to the mounting plate 201. A symmetrical L-shaped block 302 is provided above the mounting plate 201. A support plate 303 is provided between the two L-shaped blocks 302 to provide a support platform for the insulating paper and the magnetic leakage sheet after they enter the folding groove 201d. A symmetrical L-shaped strip 301b is provided on the left and right sides of the support plate 303 above the mounting plate 201. The cooperation between the L-shaped strip 301b and the L-shaped block 302 enables the folding of the front, back, left and right sides of the magnetic leakage sheet, thereby forming the effect of the insulating paper wrapping the outside of the magnetic leakage sheet. The upper end of the inner side of the L-shaped strip 301b and the L-shaped block 302 are both chamfered. Specifically, a U-shaped plate 306b is fixed to the upper wall of the dual-head motor 306, and a cylinder 304 fixed to the support plate 303 is fixed to the inner side of the U-shaped plate 306b. When the magnetic leakage sheet wrapped with insulating paper is taken out, the cylinder 304 extends to drive the support plate 303 to move upward, so that the height of the magnetic leakage sheet wrapped with insulating paper is higher than the upper wall of the mounting plate 201, which makes it easy to manually pick up the magnetic leakage sheet wrapped with insulating paper. A folding groove 201d is opened on the mounting plate 201 corresponding to the position of the support plate 303. When the magnetic leakage sheet is folded, the magnetic leakage sheet is located inside the folding groove 201d. At the same time, in order to ensure that the magnetic leakage sheet and the insulating paper can smoothly enter the folding groove 201d, the size of the folding groove 201d is slightly larger than the size of the magnetic leakage sheet. The support plate 303 has a strip groove 201f on the front and rear mounting plate 201 respectively. The strip groove 201f has a convex plate 305 that is threadedly connected to the threaded rod 306a. The convex plate 305 is fixedly connected to the L-shaped block 302. When the dual-head motor 306 works, the convex plate 305 moves inside the strip groove 201f. The outer side wall of the L-shaped bar 301b is fixed with an electric telescopic rod 301 for driving the corresponding L-shaped bar 301b to move. The outer end of the electric telescopic rod 301 is fixed with an end plate 301a that is fixed to the mounting plate 201. The support plate 303 has a positioning line 201e on the upper wall of the mounting plate 201. The insulating paper can be positioned by referring to the positioning line 201e. The size of the positioning line 201e can be slightly larger than the size of the insulating paper to prevent the insulating paper from covering the positioning line 201e and causing the positioning line 201e to fail to serve as a reference. Furthermore, in order to facilitate the entry of the magnetic leakage sheet into the interior of the folding groove 201d, a chamfer or rounded corner is provided at the mounting plate 201 at the upper end of the folding groove 201d, and the magnetic leakage sheet is guided into the folding groove 201d by the above-mentioned setting. The operation process of this embodiment is as follows: The cut insulating paper is placed in the center position within the positioning line 201e. At this time, the magnetic leakage sheet is placed in the center position above the insulating paper. At this time, a downward force is applied to the magnetic leakage sheet until the magnetic leakage sheet and the insulating paper below the magnetic leakage sheet are both inside the folding groove 201d. In this state, the insulating paper on the left and right sides and the front and back sides of the magnetic leakage sheet are all tilted upward. In this state, the controller first controls the double-head motor 306 to work and drive the two threaded rods 306a to rotate, so that the two convex plates 305 move closer to each other and drive the two L-shaped blocks 302 to move closer to each other, so that the insulating paper at the front and back ends of the magnetic leakage sheet is folded synchronously. Then, the controller controls the two electric telescopic rods 301 to extend in sequence until the L-shaped strip 301b extends to fold the insulating paper on the left and right sides of the magnetic leakage sheet. After folding, the insulating paper completely covers the magnetic leakage sheet. After folding, the controller controls the electric telescopic rod 301 to retract, causing the two L-shaped strips 301b to move away from the magnetic leakage sheet. Then, the controller controls the dual-head motor 306 to work, causing the two L-shaped blocks 302 to move away from each other. Next, the controller controls the cylinder 304 to extend, causing the wrapped magnetic leakage sheet to move upward and be removed.

[0026] It should be noted that the motor 205, electric push rod 208, cylinder 304, and electric telescopic rod 301 in the microwave oven transformer leakage magnetic sheet wrapping insulation paper folding composite mechanism are all controlled by a controller. The motor 205, electric push rod 208, cylinder 304, and electric telescopic rod 301 are connected to the controller in a conventional manner. At the same time, the motor 205, electric push rod 208, cylinder 304, electric telescopic rod 301, and controller are all existing technologies, and their models are not limited here. In addition, the conveying length of the insulation paper can be set by the controller.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A folding and composite mechanism for insulating paper wrapped around a microwave oven transformer's magnetic leakage sheet, comprising a cutting component (2), characterized in that: The cutting assembly (2) includes a mounting plate (201) located below the insulating paper roll (1). A rectangular groove (201a) is provided on the left side of the mounting plate (201). Rotating rollers (206) are symmetrically arranged vertically on the inner side of the rectangular groove (201a). A motor (205) is provided in front of the upper rotating roller (206). A fixing plate (204) is provided above the motor (205). An electric push rod (208) is fixed on the right side of the lower wall of the fixing plate (204). A moving plate (209) is fixed at the lower end of the electric push rod (208). A cutting blade (209b) with an inclined lower wall is fixed on the lower wall of the moving plate (209). A cutting groove (201c) is provided on the mounting plate (201) at the location of the cutting blade (209b). The folding assembly (3) includes a dual-head motor (306) located on the lower right side of the mounting plate (201). Threaded rods (306a) are fixed on both power output shafts of the dual-head motor (306). The threads of the two threaded rods (306a) are opposite in direction. L-shaped blocks (302) are symmetrically arranged above the mounting plate (201) at the location of the threaded rods (306a). A support plate (303) is provided between the two L-shaped blocks (302). L-shaped strips (301b) located above the mounting plate (201) are symmetrically arranged on the left and right sides of the support plate (303).

2. The microwave oven transformer magnetic leakage sheet wrapped with insulating paper folding composite mechanism according to claim 1, characterized in that: Screw sleeves (201b) are fixed at the four corners of the lower wall of the mounting plate (201). The lower end of the screw sleeve (201b) is threaded with a screw rod (207b). The lower end of the screw rod (207b) is fixed with a base plate (207). The lower wall of the base plate (207) is fixed with an anti-slip pad (207a).

3. The microwave oven transformer magnetic leakage sheet wrapped with insulating paper folding composite mechanism according to claim 1, characterized in that: The right end of the insulating paper roll (1) passes between the two rotating rollers (206) and extends to the right. The front and rear sides of the lower wall of the fixed plate (204) are fixed with vertical plates (204a) that are fixed to the mounting plate (201). The motor (205) is fixedly connected to the vertical plate (204a). The rotating shaft (206a) is fixedly provided at the middle position of the front and rear ends of the rotating roller (206). The power output shaft of the motor (205) is fixedly connected to the corresponding rotating shaft (206a).

4. The microwave oven transformer magnetic leakage sheet wrapped with insulating paper folding composite mechanism according to claim 3, characterized in that: A rotating rod (202) is provided at the middle position of the insulating paper roll (1). Side plates (203) fixed to the fixing plate (204) are provided on the front and rear ends of the rotating rod (202). A placement groove (203b) is provided on the side plate (203) corresponding to the position of the rotating rod (202). A baffle (203a) fixed to the side plate (203) is provided on the side of the placement groove (203b) away from the insulating paper roll (1).

5. The microwave oven transformer magnetic leakage sheet wrapped with insulating paper folding composite mechanism according to claim 4, characterized in that: The electric push rod (208) is symmetrically provided with guide rods (209a) fixed to the moving plate (209) at the front and rear. The guide rod (209a) is provided with a guide sleeve (204b) fixed to the mounting plate (201) with an external clearance fit.

6. The microwave oven transformer magnetic leakage sheet wrapped with insulating paper folding composite mechanism according to claim 1, characterized in that: The upper wall of the dual-head motor (306) is fixed with a U-shaped plate (306b), and the inner side of the U-shaped plate (306b) is fixed with a cylinder (304) that is fixed to the support plate (303). A folding groove (201d) is provided on the mounting plate (201) corresponding to the position of the support plate (303).

7. The microwave oven transformer magnetic leakage sheet wrapped with insulating paper folding composite mechanism according to claim 6, characterized in that: The support plate (303) has a strip groove (201f) on the front and rear mounting plate (201). The strip groove (201f) is fitted with a convex plate (305) that is threaded to the threaded rod (306a). The convex plate (305) is fixedly connected to the L-shaped block (302). The outer side wall of the L-shaped strip (301b) is fixedly provided with an electric telescopic rod (301). The outer end of the electric telescopic rod (301) is fixedly provided with an end plate (301a) that is fixed to the mounting plate (201).

8. The microwave oven transformer magnetic leakage sheet wrapped with insulating paper folding composite mechanism according to claim 7, characterized in that: The support plate (303) has a positioning line (201e) on the upper wall of the mounting plate (201) corresponding to the outside of the support plate (303).

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