Injection mold for frequency converter shell

Abstract

The utility model provides a frequency converter shell injection mold, relates to frequency converter production technical field, including base and injection mold, the bottom of base is fixedly connected with the linking plate, the top of linking plate is movably equipped with the hydraulic cylinder, the bottom of hydraulic cylinder is equipped with the hydraulic rod, the bottom of hydraulic rod is fixedly connected with the fixed plate, and the fixed plate is fixedly connected with the fixed plate. A rotating handle is movably mounted on the surface of the base, stretching and retracting of a hydraulic rod are controlled through a hydraulic cylinder, when the hydraulic cylinder drives a fixing plate to approach a connecting plate, an ejector rod at the top of the fixing plate moves in a mounting groove, and meanwhile, a shell in an injection mold is pushed outwards, so that demolding of the shell in the injection mold is facilitated; the clamping blocks are clamped in the clamping grooves, the injection mold is limited and fixed, the clamping blocks can be separated from the clamping grooves by rotating the rotating handle, the clamping blocks can be limited through the formed limiting grooves, the clamping blocks are prevented from falling into the base, and the effect of conveniently disassembling and replacing the injection mold is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converter production, in particular to an injection mold for a frequency converter housing. Background Art

[0002] The frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control the AC motor by changing the working power frequency of the motor. The frequency converter is mainly composed of rectification (AC to DC), filtering, inversion (DC to AC), braking unit, drive unit, detection unit, microprocessor unit, etc.

[0003] The inverter housing is injection molded by a mold. Usually, the mold is placed on an injection molding base, and the injection molding is performed by sealing the injection molding base and the injection molding top cover. However, the demolding process is laborious, and the injection molded housing needs to be manually removed from the mold, which is time-consuming and labor-intensive. In addition, due to the different models of the inverter, the mold needs to be replaced accordingly before injection molding. However, the existing mold installation structure is relatively cumbersome and cannot be quickly disassembled and replaced, which reduces production efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the demoulding process of the inverter housing is quite laborious and the molded housing needs to be manually removed from the mold, which is time-consuming and laborious. In addition, due to the different models of the inverter, the mold needs to be replaced accordingly before injection molding. However, the existing mold installation structure is relatively cumbersome and cannot be quickly disassembled and replaced, which reduces the production efficiency. A inverter housing injection mold is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a frequency converter housing injection mold, comprising a base and an injection mold, the interior of the base is a hollow structure, the bottom of the base is fixedly connected to a connecting plate, the top of the connecting plate is movably installed with a hydraulic cylinder, the bottom of the hydraulic cylinder is provided with a hydraulic rod, the bottom of the hydraulic rod is fixedly connected with a fixing plate, the top of the base is provided with a mounting groove, the four sides of the inner wall of the mounting groove are provided with limiting grooves, the four sides of the outer wall of the injection mold are provided with card grooves, the bottom of the injection mold is provided with a through hole, and the surface of the base is movably installed with a turning handle.

[0006] Preferably, a push rod is fixedly connected to the top of the fixed plate, the surface of the push rod is movably connected to the inner wall of the base, the top of the push rod is movably mounted on the inner bottom end of the mounting groove, the top of the push rod is located on the inner side of the through hole, and the number of the push rods is the same as the number of through holes.

[0007] Preferably, one end of the turning handle is fixedly connected to bevel gear 1, and a bevel gear 2 is movably installed on the top of the inner wall of the base, one side of the bevel gear 2 is meshed with the teeth of one side of the bevel gear 1, and the bottom of the bevel gear 2 is fixedly connected to a screw rod, and the bottom of the screw rod is movably connected to the bottom end of the inner wall of the base.

[0008] Preferably, a movable block is provided inside the base, the inner wall of the movable block is threadedly connected to the surface of the screw, four sides of the outer wall of the movable block are movably connected to connecting rods, and the surface of the connecting rods is provided with sliding grooves.

[0009] Preferably, a fixing rod is fixedly connected to the bottom end of the inner wall of the base, a movable shaft is movably mounted on the surface of the fixing rod, and one end of the movable shaft is mounted inside the slide groove.

[0010] Preferably, a slider is provided inside the base, the bottom of the slider is movably connected to the top of the connecting rod, and a clamping block is fixedly connected to one side of the slider.

[0011] Preferably, the size of the limiting groove matches the size of the clamping block.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the extension and retraction of the hydraulic rod is controlled by the hydraulic cylinder. When the hydraulic cylinder drives the fixed plate to approach the connecting plate, the push rod on the top of the fixed plate moves inside the installation groove, and at the same time pushes the shell inside the injection mold outward, so as to facilitate demoulding of the shell inside the injection mold.

[0014] 2. In the utility model, the injection mold is located inside the installation groove, and the injection mold is limited and fixed by a card block connected to the inside of the card slot. The card block can be retracted into the limiting groove by turning the handle. At this time, the card block is separated from the card slot, which makes it convenient to take out the injection mold for replacement. The opened limiting groove can limit the card block to prevent the card block from falling into the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a schematic diagram of the three-dimensional structure of the base of the inverter housing injection mold;

[0016] Figure 2 The utility model provides a schematic diagram of the internal structure of the base of an inverter housing injection mold;

[0017] Figure 3 The utility model provides a local cross-sectional structure diagram of an injection mold for a frequency converter housing;

[0018] Figure 4A schematic diagram of a movable shaft installation structure of an inverter housing injection mold is provided for the utility model;

[0019] Figure 5 The utility model provides an enlarged schematic diagram of the structure at position A of an injection mold for a frequency converter housing.

[0020] Legend: 1. Base; 101. Mounting slot; 102. Limiting slot; 11. Connecting plate; 12. Hydraulic cylinder; 121. Hydraulic rod; 13. Fixed plate; 131. Push rod; 14. Fixed rod; 141. Movable shaft; 2. Injection mold; 201. Slot; 202. Through hole; 3. Turn handle; 31. Bevel gear 1; 32. Bevel gear 2; 33. Screw; 34. Movable block; 35. Connecting rod; 351. Slide slot; 36. Slider; 37. Block. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Example 1

[0023] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: an injection mold for a frequency converter housing, comprising a base 1 and an injection mold 2, the interior of the base 1 is a hollow structure, a connecting plate 11 is fixedly connected to the bottom of the base 1, a hydraulic cylinder 12 is movably installed on the top of the connecting plate 11, a hydraulic rod 121 is provided at the bottom of the hydraulic cylinder 12, a fixing plate 13 is fixedly connected to the bottom of the hydraulic rod 121, a mounting groove 101 is provided at the top of the base 1, limiting grooves 102 are provided on the four sides of the inner wall of the mounting groove 101, a clamping groove 201 is provided on the four sides of the outer wall of the injection mold 2, a through hole 202 is provided at the bottom of the injection mold 2, a turning handle 3 is movably installed on the surface of the base 1, a push rod 131 is fixedly connected to the top of the fixing plate 13, the surface of the push rod 131 is movably connected to the inner wall of the base 1, the top of the push rod 131 is movably installed at the inner bottom end of the mounting groove 101, the top of the push rod 131 is located on the inner side of the through hole 202, and the number of the push rods 131 is the same as the number of the through holes 202.

[0024] In this embodiment, the injection mold 2 is installed inside the mounting groove 101, and the push rod 131 passes through the injection mold 2 through the through hole 202. When the injection molding of the inverter housing is completed, the hydraulic cylinder 12 drives the hydraulic rod 121 to contract, so that the fixed plate 13 approaches the connecting plate 11, and the push rod 131 moves inside the mounting groove 101 and penetrates into the injection mold 2 at the same time, and pushes the shell inside the injection mold 2 outward. When demolding is completed, the hydraulic cylinder 12 drives the hydraulic rod 121 to move back, which is convenient for the next demolding operation. Example 2

[0025] like Figure 1-Figure 5 As shown, one end of the turning handle 3 is fixedly connected to a bevel gear 1 31, and a bevel gear 2 32 is movably installed on the top of the inner wall of the base 1, one side of the bevel gear 2 32 is meshed with the teeth of one side of the bevel gear 1 31, and the bottom of the bevel gear 2 32 is fixedly connected to a screw rod 33, and the bottom of the screw rod 33 is movably connected to the bottom end of the inner wall of the base 1. A movable block 34 is provided inside the base 1, and the inner wall of the movable block 34 is threadedly connected to the surface of the screw rod 33. The four sides of the outer wall of the movable block 34 are movably connected to a connecting rod 35, and a sliding groove 351 is provided on the surface of the connecting rod 35, and a fixing rod 14 is fixedly connected to the bottom end of the inner wall of the base 1, and a movable shaft 141 is movably installed on the surface of the fixing rod 14, and one end of the movable shaft 141 is installed inside the sliding groove 351. A sliding block 36 is provided inside the base 1, and the bottom of the sliding block 36 is movably connected to the top of the connecting rod 35, and a block 37 is fixedly connected to one side of the sliding block 36, and the size of the limiting groove 102 matches the size of the block 37.

[0026] When the injection mold 2 needs to be replaced, the bevel gear 1 31 is driven to rotate by turning the handle 3. The bevel gear 1 31 drives the screw rod 33 to rotate by meshing with the bevel gear 2 32. When the screw rod 33 rotates, the movable block 34 moves on its surface. The movable block 34 moves upward and drives the connecting rod 35 to make a connecting rod movement, so that the top of the connecting rod 35 drives the slider 36 to move outward. At the same time, the slide groove 351 moves on the surface of the movable shaft 141. One end of the movable shaft 141 is installed inside the slide groove 351 to support the connecting rod 35. The slider 36 moves outward and drives the block 37 to move into the limiting groove 102, so that the block 37 is separated from the groove 201. At this time, the injection mold 2 can be taken out upward. Otherwise, the injection mold 2 is placed in the installation groove 101. The handle 3 is rotated in the opposite direction to make the block 37 move back to the groove 201 on the surface of the injection mold 2, so as to limit and fix the injection mold 2.

[0027] The working principle of this embodiment is as follows: when the injection molding of the inverter housing is completed, the hydraulic cylinder 12 drives the hydraulic rod 121 to contract, so that the fixed plate 13 approaches the connecting plate 11, and the ejector 131 moves inside the mounting groove 101 and penetrates into the injection mold 2 at the same time, and the housing inside the injection mold 2 is ejected outward to complete the demoulding. When the injection mold 2 needs to be replaced, the screw 33 is driven to rotate by turning the handle 3. When the screw 33 rotates, the movable block 34 moves on its surface, and the movable block 34 moves upward with The movable connecting rod 35 performs connecting rod movement, so that the top of the connecting rod 35 drives the slider 36 to move outward, and the slider 36 moves outward and drives the block 37 to move to the inside of the limiting groove 102, so that the block 37 is disengaged from the inside of the groove 201. At this time, the injection mold 2 can be taken out upward, and conversely, the injection mold 2 is placed into the installation groove 101, and the handle 3 is rotated in the reverse direction to make the block 37 move back to the inside of the groove 201 on the surface of the injection mold 2, so as to limit and fix the injection mold 2, and facilitate the disassembly and replacement of the injection mold 2.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An inverter housing injection mold, comprising a base (1) and an injection mold (2), characterized in that: The interior of the base (1) is a hollow structure. A connecting plate (11) is fixedly connected to the bottom of the base (1). A hydraulic cylinder (12) is movably mounted on the top of the connecting plate (11). A hydraulic rod (121) is provided at the bottom of the hydraulic cylinder (12). A fixing plate (13) is fixedly connected to the bottom of the hydraulic rod (121). A mounting groove (101) is provided at the top of the base (1). Limiting grooves (102) are provided on four sides of the inner wall of the mounting groove (101). Clamping grooves (201) are provided on four sides of the outer wall of the injection mold (2). A through hole (202) is provided at the bottom of the injection mold (2). A turning handle (3) is movably mounted on the surface of the base (1).

2. The inverter housing injection mold according to claim 1, characterized in that: A top rod (131) is fixedly connected to the top of the fixing plate (13); the surface of the top rod (131) is movably connected to the inner wall of the base (1); the top of the top rod (131) is movably mounted on the inner bottom end of the mounting groove (101); the top of the top rod (131) is located on the inner side of the through hole (202); and the number of the top rods (131) is the same as the number of the through holes (202).

3. The inverter housing injection mold according to claim 1, characterized in that: One end of the turning handle (3) is fixedly connected to a bevel gear 1 (31); a bevel gear 2 (32) is movably mounted on the top of the inner wall of the base (1); one side of the bevel gear 2 (32) is meshed with one side of the bevel gear 1 (31); a screw rod (33) is fixedly connected to the bottom of the bevel gear 2 (32); and the bottom of the screw rod (33) is movably connected to the bottom end of the inner wall of the base (1).

4. The inverter housing injection mold according to claim 1, characterized in that: A movable block (34) is provided inside the base (1), the inner wall of the movable block (34) is threadedly connected to the surface of the screw rod (33), four sides of the outer wall of the movable block (34) are movably connected to connecting rods (35), and the surface of the connecting rod (35) is provided with a sliding groove (351).

5. The inverter housing injection mold according to claim 1, characterized in that: A fixing rod (14) is fixedly connected to the bottom end of the inner wall of the base (1), a movable shaft (141) is movably mounted on the surface of the fixing rod (14), and one end of the movable shaft (141) is mounted inside the slide groove (351).

6. The inverter housing injection mold according to claim 1, characterized in that: A slider (36) is provided inside the base (1), the bottom of the slider (36) is movably connected to the top of the connecting rod (35), and a clamping block (37) is fixedly connected to one side of the slider (36).

7. The inverter housing injection mold according to claim 1, characterized in that: The size of the limiting groove (102) matches the size of the clamping block (37).

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