An epoxy resin casting winding demoulding device

Abstract

The invention discloses an epoxy resin casting winding demoulding device, comprising an operating table structure, a mounting platform movably arranged at a mounting groove of the operating table structure, two limit rods movably arranged at the mounting groove parallel to the mounting platform, and a driving structure arranged at the mounting groove and respectively connected to the mounting platform and the casting winding. The inner film is fixedly arranged on the mounting platform, and the driving structure drives the casting winding to move up to a preset height relative to the mounting platform, and then the two limit rods are moved and inserted into the bottom of the casting winding, and the casting winding is supported by the two limit rods. Finally, the mounting platform is driven to move down a certain distance relative to the casting winding to realize the demoulding operation of the casting winding and the inner film. The demoulding device greatly reduces the demoulding time and saves the use of a workshop crane, which not only improves the safety factor of the demoulding operation, but also ensures the product quality. It is easy to operate and use, and improves the demoulding work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of demoulding of cast coils, and in particular to a demoulding device for epoxy resin cast windings. Background Art

[0002] At present, the dry-type transformers in the industry are mainly epoxy cast coils. During the production process of the winding coil, the wire needs to be wound on an epoxy resin casting mold, and the epoxy resin is cast through a casting equipment, and then it becomes a whole after high-temperature curing.

[0003] Existing epoxy resin casting molds, such as Fig. 9 As shown, it mainly includes a base plate, an inner mold 02 and an outer mold 01, the inner mold is an integrated cylinder, the outer mold is a cylinder with an outward axially protruding opening and a folded edge, and its cross section is composed of a C-shaped arc surface segment and an L-shaped straight line segment connected to the two ends of the arc; a branch template is installed at the folded edge opening of the outer mold 01, and the branch template, inner mold and outer mold are all arranged on the base plate, and the base plate is also provided with a limiting ring plate for positioning the inner mold and the outer mold; a through-core screw is provided at the center of the inner mold, and a fixed cross is provided on the through-core screw at the upper end surface of the inner mold and the outer mold, and screws 03 are respectively passed through the four ends of the fixed cross, and each screw is fixed on the base plate to realize the compression of the inner and outer molds.

[0004] At present, after the resin pouring and curing of the winding coil of this transformer is completed, the coil winding needs to be demoulded. First, remove the cross and the through-screw, and then you can remove the tapping template and the outer mold from the winding coil at will. This process can be completed manually and is relatively simple. However, in the process of removing the inner film, since the inner film is tightly embedded in the winding coil, external tools are required to assist in disassembly. The traditional method is to use a hammer or iron rod to hit the mold, which is easy to cause mold damage and sometimes damage the casting coil; another method is to use a crane to disassemble the coil winding. The crane is hooked on the lifting ring at the top of the inner film through a lifting chain, and the inner film and the coil winding are hoisted to the demoulding frame together with the crane, and then two channel steels or push rods are placed on both sides of the top of the casting coil winding, and then the inner mold is pulled up by the crane to separate the inner mold from the coil winding demoulding.

[0005] Although the existing epoxy resin cast coil winding can be demoulded between the inner mold and the cast coil by demoulding with a crane, the following problems still exist in actual operation: 1. The crane is large in size and is set at a high place in the workshop, and is equipped with a hanging chain hook for movement. It is not only difficult to operate, but also has a high risk of operation and poses a safety hazard; 2. The crane has to be used up and down, which consumes a lot of crane energy and occupies the efficiency of the entire workshop. It will also reduce the service life of the crane and affect the efficiency of demoulding; 3. When the inner film is pulled up, there is a certain distance between the coil winding and the ground. At the moment of demoulding, the coil winding will fall down, which can easily cause collision damage to the winding and affect product quality. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problems in the prior art that the cast winding needs to be demolded with the help of a workshop crane, which has high operation risks, low demolding efficiency, and the coil winding falls off at the moment of demolding, affecting product quality. Thus, a demolding device for epoxy resin cast winding is provided, which eliminates the use of a crane, improves the operation safety factor, improves the demolding efficiency, and ensures product quality.

[0007] The present invention provides an epoxy resin casting winding demoulding device, comprising:

[0008] An operating table structure, on which a mounting groove is provided;

[0009] A mounting platform is movably arranged in the mounting groove along the opening direction of the mounting groove, an inner film is fixedly arranged on the mounting platform, and a cast winding is sleeved on the outer side of the inner film and abuts against the mounting platform;

[0010] A driving structure is arranged in the mounting groove and is connected to the mounting platform and the casting winding respectively, the driving structure having a first state of driving the casting winding to move upward to a preset height relative to the mounting platform, and a second state of driving the mounting platform to move downward relative to the casting winding and driving the inner film to separate from the casting winding;

[0011] The limiting structure includes two limiting rods which are movably arranged at the end of the mounting groove parallel to the mounting platform. The two limiting rods are relatively arranged on both sides of the bottom of the casting winding, and are moved and inserted into the bottom of the casting winding when the casting winding moves to a preset height.

[0012] In the above-mentioned epoxy resin cast winding demolding device, the driving structure includes at least one first driving rod passing through the mounting platform and abutting against the bottom of the cast winding, and at least one second driving rod fixedly connected to the mounting platform, and a first cylinder and a second cylinder respectively driving the first driving rod and the second driving rod to reciprocate along the opening direction of the mounting groove.

[0013] In the above-mentioned epoxy resin cast winding demoulding device, the first cylinder is installed at the bottom of the mounting platform, the first driving rod is vertically movably arranged on the mounting platform, and two of the first cylinder and the first driving rod are arranged opposite to each other on both sides of the straight edges of the bottom of the cast winding.

[0014] In the above-mentioned epoxy resin cast winding demolding device, the first driving rod pushes the cast winding up to a preset height under the drive of the first cylinder, and forms a limiting gap around the inner film between the cast winding and the installation platform, and the two limiting rods are suitable for being inserted into the limiting gap and abutting against the two ends of the bottom of the cast winding.

[0015] In the above-mentioned epoxy resin casting winding demoulding device, the second cylinder is installed in the installation groove, and drives the installation platform to move up and down in the installation groove through the second driving rod.

[0016] In the above-mentioned epoxy resin cast winding demoulding device, a limiting bottom plate sleeved on the inner film is matchedly provided at the bottom of the cast winding, and the first driving rod abuts against the limiting bottom plate.

[0017] In the above-mentioned epoxy resin casting winding demoulding device, a guide structure for guiding the movement of the mounting platform is arranged between the mounting platform and the mounting groove, and the guide structure includes a hollow guide sleeve vertically arranged at the bottom of the mounting groove, and a guide column slidably connected to the hollow guide sleeve, one end of the guide column is fixedly connected to the mounting platform; the guide column is extended in the same direction as the first drive rod and the second drive rod.

[0018] In the above-mentioned epoxy resin cast winding demoulding device, the limiting structure includes a trolley component movably arranged at the port position of the installation groove, and the trolley component has a accommodating space for accommodating the installation platform and the cast winding; the two limiting rods are relatively movably connected to the accommodating space of the trolley component, and when they are inserted into the bottom of the cast winding towards each other, they abut against the outer wall of the inner membrane, so that the cast winding abuts against the two limiting rods when the thrust of the first driving rod disappears.

[0019] In the above-mentioned epoxy resin casting winding demolding device, the two limit rods are respectively a fixed steel rod fixedly set at one end of the cart component, and a movable steel rod movably set on the cart component, and the other end of the cart component is provided with a third cylinder for driving the movable steel rod to move toward or away from the fixed steel rod.

[0020] In the above-mentioned epoxy resin cast winding demolding device, the operating table structure is provided with two groove structures extending to both sides of the port of the installation groove, and the two sides of the trolley component have multiple pulley structures slidably connected to the two groove structures. When the trolley component moves along the groove structure, it can drive the cast winding to move out of the installation groove.

[0021] In the above-mentioned epoxy resin casting winding demoulding device, the operating table structure is a ground concrete platform or a frame platform, and guardrails are arranged on both sides of the port of the installation groove.

[0022] The technical solution of the present invention has the following advantages compared with the prior art:

[0023] 1. The epoxy resin casting winding demoulding device provided by the present invention is that the casting winding molded by epoxy resin casting is located on the installation platform, and after the outer mold and the screw part are manually removed, the casting winding and the inner film wrapped together are left. At this time, under the drive of the driving structure, the casting winding is driven to move up to a preset height relative to the installation platform, so that there is a certain gap between the casting winding and the installation platform, and the two limit rods are moved and inserted into the bottom of the casting winding. The two limit rods play a force-supporting role for the casting winding, thereby separating the casting winding from the installation platform, and finally, the installation platform is driven to move down a certain distance relative to the casting winding, and is fixed on the installation platform according to the inner film, so that during the downward movement of the installation platform The inner film is pulled out from the inside of the casting winding to realize the demoulding operation of the casting winding and the inner film. By adopting the technical scheme, the casting winding body after the inner film is pulled out from top to bottom is against the two limit rods located at the opening of the installation groove, which can ensure that the casting winding does not shake or shift during demoulding, and it is also convenient for the staff to collect it. This demoulding device greatly reduces the demoulding time, eliminates the use of workshop cranes, extends the service life of the crane, and improves the safety factor of demoulding operation. At the same time, it also prevents the risk of the casting winding falling at the moment of separation from the inner film, thereby ensuring the stability of product quality. The entire demoulding process can be automated, easy to operate, reduces manual labor intensity, and greatly improves the demoulding efficiency of the product.

[0024] 2. The epoxy resin casting winding demoulding device provided by the present invention has a driving structure including a first driving rod connected to the casting winding and a second driving rod connected to the mounting platform. The first driving rod is pushed against the bottom of the casting winding under the drive of the first cylinder to lift the casting winding from the mounting platform to a certain height. At this time, two limiting rods are inserted into the bottom of the casting winding toward each other. When the first driving rod is reset, the two limiting rods replace the first driving rod to support the casting winding, and the second driving rod drives the mounting platform and the inner film to move downward under the drive of the second cylinder. Under the limiting action of the two limiting rods, the casting winding realizes the separation and demoulding of the inner film and the casting winding. The coordinated operation is reliable, and the casting winding can be kept in place during demoulding with good stability.

[0025] 3. The epoxy resin casting winding demoulding device provided by the present invention forms a limiting gap with the mounting platform bracket after the casting winding is lifted up by the first driving rod. The limiting gap is just suitable for the insertion of two limiting rods. The two limiting rods are used to provide limiting support for the bottom of the casting winding. The two limiting rods are respectively arranged at the two ends of the bottom of the casting winding and at the same time, they are respectively arranged on both sides of the bottom of the casting winding according to the two first driving rods. This design can prevent the two limiting rods from being blocked by the two first driving rods when moving toward each other, thereby ensuring that the two do not interfere with each other. The design is reasonable and the coordination is reliable.

[0026] 4. The epoxy resin casting winding demoulding device provided by the present invention has a trolley component set at the port of the installation groove, and two limit rods are relatively movably connected to the accommodating space of the trolley component. When the two limit rods are inserted into the bottom of the casting winding and touch the outer wall of the inner membrane, it means that the casting winding has moved into place. When the demoulding is completed, it abuts against the two limit rods. The demoulding is completed. The casting winding can be moved out of the installation groove by moving the trolley component. In this way, the staff can easily take out the casting winding, and then replace it with the casting winding that needs to be demoulded, push it back to the port of the installation groove, and continue the demoulding work. The operation is safe and reliable, and the work efficiency is improved.

[0027] 5. The epoxy resin casting winding demoulding device provided by the present invention comprises two limit rods, respectively a fixed steel rod and a movable steel rod, which are arranged on a trolley component. According to the casting winding being located within the accommodating space of the trolley component, the fixed steel rod is first driven by the moving trolley component to be inserted into the limit gap and abutted against the side wall of the inner membrane. At this time, the movable steel rod is driven by the third cylinder to move toward the side close to the fixed steel rod, so as to drive the movable steel rod to move into the limit gap formed at the bottom of the casting winding. Finally, the fixed steel rod and the movable steel rod are relatively abutted against the two ends of the bottom of the casting winding, which play a limit support role for the bottom of the casting winding, and prepare for the next process in which the subsequent installation platform drives the inner membrane to be demoulded. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation of the present invention or the technical solution in the prior art, the drawings required for use in the specific implementation or the description of the prior art are briefly introduced below.

[0029] Figure 1 It is a structural schematic diagram of the first step of demoulding of the epoxy resin casting winding demoulding device of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the second step of demoulding of the epoxy resin casting winding demoulding device of the present invention;

[0031] Figure 3It is a structural schematic diagram of the third step of demoulding of the epoxy resin casting winding demoulding device of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the fourth step of demoulding of the epoxy resin casting winding demoulding device of the present invention;

[0033] Figure 5 It is a top view of the epoxy resin casting winding demoulding device of the present invention, and particularly shows the trolley component and the limit rod;

[0034] Figure 6 for Figure 5 The schematic diagram of the structure in which the limit rod is moved to the bottom of the casting winding;

[0035] Figure 7 It is a schematic diagram of the installation structure of the driving structure and the installation platform of the present invention;

[0036] Figure 8 It is a schematic diagram of the installation structure of the cart component and the limit rod of the present invention;

[0037] Fig. 9 It is a structural schematic diagram of a casting mold in the prior art;

[0038] Description of reference numerals:

[0039] 1-operating table structure, 11-channel structure, 12-guardrail, 2-installation groove, 21-hollow guide sleeve, 22-guide column, 3-installation platform, 4-driving structure, 40-limiting gap, 41-first driving rod, 42-second driving rod, 43-first cylinder, 44-second cylinder, 5-limiting rod, 51-fixed steel rod, 52-movable steel rod, 53-third cylinder, 6-trolley component, 61-accommodating space, 62-pulley structure, 7-limiting bottom plate, 8-inner membrane, 9-casting winding. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] Example 1

[0043] The present embodiment is described in detail below with reference to the accompanying drawings:

[0044] The present invention provides Figure 1-8 The epoxy resin casting winding demoulding device shown comprises:

[0045] An operating table structure 1 is provided with a mounting groove 2;

[0046] A mounting platform 3 is movably disposed in the mounting groove 2 along the opening direction of the mounting groove 2, an inner film 8 is fixedly disposed on the mounting platform 3, and a cast winding 9 is sleeved on the outer side of the inner film 8 and abuts against the mounting platform 3;

[0047] The driving structure 4 is arranged in the mounting groove 2 and connected to the mounting platform 3 and the casting winding respectively. The driving structure 4 has a first state of driving the casting winding 9 to move upward to a preset height relative to the mounting platform 3, and a second state of driving the mounting platform 3 to move downward relative to the casting winding 9 and driving the inner film 8 to separate from the casting winding 9, that is, the driving structure is divided into two actions and drives the mounting platform 3 and the casting winding to move successively according to the designed sequence;

[0048] The limiting structure includes two limiting rods 5 which are movably arranged at the end of the mounting groove 2 in parallel with the mounting platform 3. The two limiting rods 5 are relatively arranged on both sides of the bottom of the casting winding 9, and are moved and inserted into the bottom of the casting winding 9 when the casting winding 9 moves to a preset height.

[0049] In the above embodiment, the casting mold for casting the transformer winding is directly installed on the mounting platform 3, which is convenient for subsequent demoulding operations. The casting winding 9 molded by epoxy resin casting is located on the mounting platform 3. After manually removing the outer mold and the screw part, the casting winding and the inner film wrapped together remain. At this time, under the drive of the driving structure, the driving structure 4 is driven twice in succession. First, the casting winding is driven to move up to a preset height relative to the mounting platform 3, so that the casting winding 9 has a certain gap from the mounting platform 3, and the two limiting rods 5 are moved and inserted into the bottom of the casting winding. The two limiting rods 5 play a force-supporting role on the casting winding, thereby separating the casting winding from the mounting platform. Finally, the mounting platform 3 is driven to move down a certain distance relative to the casting winding 9. The inner film is fixed on the mounting platform, so that the inner film 8 is pulled out from the inside of the casting winding 9 during the downward movement of the mounting platform 3, and the demoulding operation of the casting winding and the inner film is realized. By adopting the technical scheme, the casting winding 9 body after the inner film is extracted from top to bottom is against the two limit rods 5 located at the opening of the mounting groove, which can ensure that the casting winding does not shake or shift during demoulding, and is also convenient for the staff to collect. This demoulding device greatly reduces the demoulding time, eliminates the use of the workshop crane, extends the service life of the crane, and improves the safety factor of the demoulding operation. At the same time, it also prevents the risk of the casting winding falling off at the moment of separation from the inner film, thereby ensuring the stability of product quality. The entire demoulding process can be automated, easy to operate, and reduces the intensity of manual labor, which greatly improves the demoulding efficiency of the product.

[0050] Combine the following Figure 1-7 The specific setting method of the drive structure is described in detail:

[0051] The driving structure 4 includes at least one first driving rod 41 passing through the mounting platform 3 and abutting against the bottom of the casting winding 9, and at least one second driving rod 42 fixedly connected to the mounting platform 3, and a first cylinder 43 and a second cylinder 44 respectively driving the first driving rod 41 and the second driving rod 42 to reciprocate along the opening direction of the mounting groove 2, so as to ensure that the movement directions of the first driving rod 41 and the second driving rod 42 are the same. In this structural arrangement, the first driving rod 41 is driven by the first cylinder to push against the bottom of the casting winding 9, so that the casting winding 9 is The casting winding 9 is lifted up from the mounting platform 3 to a certain height, and then the two limiting rods 5 move toward each other and are inserted into the bottom of the casting winding 9. When the first driving rod 41 is reset, the two limiting rods 5 replace the first driving rod to support the casting winding 9, and the second driving rod 42 drives the mounting platform 3 and the inner film 8 to move downward under the drive of the second cylinder. Under the limiting action of the two limiting rods 5, the casting winding 9 realizes the separation and demoulding of the inner film 8 and the casting winding 9. The coordinated operation is reliable, and the casting winding can be kept in place during demoulding, with good stability.

[0052] In order to prevent the first driving rod 41 or the limiting rod from directly pushing the bottom of the casting winding, Figure 7 As shown, the bottom of the cast winding 9 is matched with a limiting bottom plate 7 which is sleeved on the inner membrane, and the first driving rod 41 abuts against the limiting bottom plate 7. According to the waist-shaped structure of the cross-section of the inner membrane and the cast winding, the limiting bottom plate 7 is a waist-shaped structure, and the limiting bottom plate plays a better protective role on the bottom of the cast winding to avoid direct abutment damage.

[0053] As a specific structural setting, refer to Figure 4 and Figure 7 The first cylinder 43 is installed at the bottom of the mounting platform 3, and the first driving rod 41 is vertically movably arranged on the mounting platform 3. The first cylinder 43 and the first driving rod 41 are arranged opposite to each other on both sides of the straight edges of the bottom of the casting winding 9. The two first driving rods 41 are located on both sides of the second driving rod. The casting winding is supported and lifted from the mounting platform stably and reliably by the first driving rod 41. The second cylinder 44 is installed in the mounting groove 2, and the mounting platform 3 is driven to move up and down in the mounting groove 2 by the second driving rod 42, so that the mounting platform drives the inner film thereon to move synchronously, thereby separating the inner film wrapped in the inner cavity of the casting winding.

[0054] In order to cooperate with the two limiting rods 5 to move to the bottom of the casting winding, Figure 2 and Figure 7 As shown, the first driving rod 41 pushes the casting winding 9 to move up to a preset height under the drive of the first cylinder 43. At this time, a limiting gap 40 is formed between the casting winding 9 and the mounting platform 3 around the inner film 8. The two limiting rods 5 are suitable for being inserted into the limiting gap 40 and abutting against the bottom ends of the casting winding 9. In summary, the cross-section of the inner film and the casting winding is a waist-shaped structure. After the casting winding 9 is lifted up by the first driving rod 41, it will be in contact with the bracket of the mounting platform 3. A limiting gap 40 is formed, which is just suitable for the insertion of two limiting rods. The two limiting rods 5 are used to support the bottom of the casting winding 9 to ensure that the casting winding 9 is stably stressed and will not tilt. The two limiting rods 5 are respectively arranged at the two ends of the bottom of the casting winding 9, and the two first driving rods 41 are respectively arranged on both sides of the bottom of the casting winding 9. This design can prevent the two limiting rods from being blocked by the two first driving rods when moving toward each other, ensuring that the two do not interfere with each other, with reasonable design and reliable coordination.

[0055] In order to ensure the stability and accuracy of the installation platform during movement, Figure 3As shown, a guide structure for guiding the movement of the mounting platform is arranged between the mounting platform 3 and the mounting groove 2, the guide column 22 is extended in the same direction as the first drive rod 41 and the second drive rod 42, and the top ends thereof are both facing the opening direction of the mounting groove. It is further arranged that the guide structure includes a hollow guide sleeve 21 vertically arranged at the bottom of the mounting groove 2, and a guide column 22 slidably connected to the hollow guide sleeve 21, one end of the guide column 22 is fixedly connected to the mounting platform 3, and the cooperation of the hollow guide sleeve and the guide column plays a role in guiding the movement of the mounting platform 3, thereby ensuring the stability of the up and down movement of the mounting platform.

[0056] The following combination Figure 3-8 The specific setting method of the limit structure is described in detail:

[0057] The limiting structure includes a trolley component 6 movably arranged at the port position of the installation groove 2, and the trolley component 6 has a accommodating space 61 for accommodating the installation platform 3 and the casting winding 9, so that the installation platform 3 can pass through the accommodating space when moving up and down without being limited by the position of the trolley component, wherein the two limiting rods 5 are relatively movably connected to the accommodating space 61, that is, the two ends of the two limiting rods extend and are connected to the side edges of the two sides of the trolley component, and when the two are close to each other and inserted into the bottom of the casting winding 9, they are against the outer wall of the inner membrane 8, which means that the two limiting rods 5 are moved into place. At this time, the first driving rod 41 is reset under the drive of the first cylinder. The movement is separated from the installation platform, so that the casting winding 9 abuts against the two limit rods 5 when the thrust of the first driving rod disappears. Through the above-mentioned structural arrangement, the trolley component serves as a mobile carrier of the two limit rods at the installation groove, and can also be used as a transportation tool for the casting winding after demoulding. The demoulding-completed casting winding 9 abuts against the two limit rods. The demoulding-completed casting winding 9 can be moved out of the installation groove 2 by simply moving the trolley component 6. This makes it convenient for the staff to easily take out the casting winding, and then replace it with the casting winding that needs to be demoulded, push it back to the port of the installation groove, and continue the demoulding work. This cycle is repeated, the operation is safe and reliable, and the work efficiency is improved.

[0058] As a preferred embodiment, Figure 5As shown, the operating table structure 1 is provided with two groove structures 11 extending to both sides of the ports of the installation groove 2, and the two sides of the trolley component 6 have multiple pulley structures 62 slidably connected to the two groove structures 11. When the trolley component 6 moves along the groove structure 62, it can drive the casting winding 9 to move out of the installation groove 2. With this structural arrangement, the width of the trolley component is adapted to the port width of the installation groove 2, so that the pulley structure is just limitedly slidably connected to the groove structure 11. Therefore, the trolley component can drive the casting mold thereon to enter and exit the installation groove 2 by sliding back and forth along the groove structure 11. The trolley component 6 can be manually operated or electrically controlled.

[0059] The operating table structure 1 is a ground concrete platform or a frame platform, which is convenient to install and build. Guardrails 12 are arranged on both sides of the port of the installation groove 2. The guardrails 12 protect the casting mold and the casting winding located at the port of the installation groove, preventing outsiders from directly contacting the casting winding that is being demolded, thereby ensuring the safety and reliability of the demolding work.

[0060] In this embodiment, combined with Figure 5-6 , Figure 8 As shown, the two limiting rods 5 are respectively a fixed steel rod 51 fixedly arranged at one end of the trolley component 6, and a movable steel rod 52 movably arranged on the trolley component 6. The other end of the trolley component 6 is provided with a third cylinder 53 for driving the movable steel rod 52 to move toward or away from the fixed steel rod 51. In actual operation, according to the casting winding being located within the accommodating space range of the trolley component, the fixed steel rod 51 is first driven by the moving trolley component 6 to be inserted into the limiting gap 40 and abut against the side wall of the inner film. At this time, the movable steel rod 52 is driven by the third cylinder 53 to move toward the side close to the fixed steel rod, so as to drive the movable steel rod 52 to also move to the limiting gap formed at the bottom of the casting winding 9, and finally the fixed steel rod 51 and the movable steel rod 52 are relatively abutted against the two ends of the bottom of the casting winding 9, which plays a limiting support role for the bottom of the casting winding, and prepares for the next process in which the subsequent installation platform drives the inner film to be demoulded. Of course, the two limit rods can also be movably arranged on the cart component.

[0061] In the above embodiment, although the two limiting rods 5 are provided on the trolley component 6, it is obvious that the two limiting rods 5 can also have other settings. For example, without the help of the trolley component, the two limiting rods 5 can be movably connected to the port of the installation groove, that is, the two ends of the two limiting rods 5 are extended to the two sides of the port of the installation groove 2, so that the two limiting rods are driven by the motor or cylinder to move horizontally along the length direction of the two ends of the casting winding, so that the two limiting rods are moved and inserted to the two ends of the bottom of the casting winding; or, the limiting rod 5 can be telescopically arranged in the mounting hole of one side or both sides of the side wall of the installation groove. When the first driving rod 41 lifts the casting winding to a certain height, the two limiting rods 5 extend from the two side walls of the installation groove, and move from one side or both sides of the bottom of the casting winding to the two ends of the bottom of the casting winding 9. Those skilled in the art can make a choice of the specific setting method of the two limiting rods 5 according to the above description, and will not be repeated here.

[0062] Combine the following Figure 1-8 The demoulding process and method of the demoulding device of this embodiment are described:

[0063] The first step: casting and molding the transformer casting winding (i.e., casting winding) through the casting mold on the mounting platform 3, then disassembling the outer mold and screw assembly outside the transformer casting winding, and removing the remaining casting winding 9 and inner film 8 on the mounting platform 3;

[0064] Step 2: The first cylinder 43 drives the first driving rod 41 to push the casting winding 9 on the mounting platform up to a preset height, so that a limiting gap around the inner membrane is formed between the casting winding 9 and the mounting platform 3;

[0065] Step 3: Move the two limiting rods 5 toward each other and insert them into the limiting gap, and abut against the two ends of the bottom of the casting winding when the first driving rod is reset and moved downward;

[0066] Step 4: The second cylinder 44 drives the second driving rod 42 to drive the mounting platform 3 to move downward relative to the casting winding 9, so as to remove the inner film 8 from the inside of the casting winding from top to bottom, thereby completing the demoulding of the casting winding and the inner film;

[0067] Step 5: After the cast winding 9 is separated from the inner film 8, it abuts against the two limit rods 5, and the cast winding is removed from the installation groove by the trolley component 6 or manually.

[0068] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An epoxy resin casting winding demoulding device, characterized in that: include: An operating table structure (1) having a mounting groove (2) provided thereon; An installation platform (3) is movably arranged on the installation groove (2) along the opening direction of the installation groove (2), an inner film (8) is fixedly arranged on the installation platform (3), and a cast winding (9) is sleeved on the outer side of the inner film (8) and abuts against the installation platform (3); A driving structure (4) is arranged in the mounting groove (2) and is respectively connected to the mounting platform (3) and the casting winding, the driving structure (4) having a first state of driving the casting winding (9) to move upward to a preset height relative to the mounting platform (3), and a second state of driving the mounting platform (3) to move downward relative to the casting winding and drive the inner film (8) to separate from the casting winding (9); The limiting structure comprises two limiting rods (5) which are movably arranged at the end of the mounting groove (2) parallel to the mounting platform (3); the two limiting rods (5) are relatively arranged on both sides of the bottom of the casting winding (9), and are moved and inserted into the bottom of the casting winding (9) when the casting winding (9) moves to a preset height.

2. The epoxy resin casting winding demoulding device according to claim 1 is characterized in that: The driving structure (4) comprises at least one first driving rod (41) passing through the mounting platform (3) and abutting against the bottom of the casting winding (9), and at least one second driving rod (42) fixedly connected to the mounting platform (3), and a first cylinder (43) and a second cylinder (44) respectively driving the first driving rod (41) and the second driving rod (42) to reciprocate along the opening direction of the mounting groove (2).

3. The epoxy resin casting winding demoulding device according to claim 2 is characterized in that: The first cylinder (43) is installed at the bottom of the installation platform (3), and the first driving rod (41) is vertically movably arranged on the installation platform (3). Two first cylinders (43) and first driving rods (41) are arranged opposite to each other at the straight edges on both sides of the bottom of the casting winding (9).

4. The epoxy resin casting winding demoulding device according to claim 3 is characterized in that: The first driving rod (41) pushes the casting winding (9) to move up to a preset height under the drive of the first cylinder (43), and forms a limiting gap (40) arranged around the inner membrane (8) between the casting winding (9) and the mounting platform (3), and the two limiting rods (5) are suitable for being inserted into the limiting gap (40) and abutting against the two ends of the bottom of the casting winding (9).

5. The epoxy resin casting winding demoulding device according to claim 4 is characterized in that: The second cylinder (44) is installed in the installation groove (2) and drives the installation platform (3) to move up and down in the installation groove (2) through the second driving rod (42).

6. The epoxy resin casting winding demoulding device according to any one of claims 2 to 5, characterized in that: The bottom of the cast winding (9) is matched with a limiting bottom plate (7) sleeved on the inner membrane, and the first driving rod (41) abuts against the limiting bottom plate (7).

7. The epoxy resin casting winding demoulding device according to any one of claims 1 to 5, characterized in that: A guide structure for guiding the movement of the mounting platform is arranged between the mounting platform (3) and the mounting groove (2), and the guide structure comprises a hollow guide sleeve (21) vertically arranged at the bottom of the mounting groove (2), and a guide column (22) slidably connected to the hollow guide sleeve (21), one end of the guide column (22) is fixedly connected to the mounting platform (3); the guide column (22) is arranged to extend in the same direction as the first drive rod (41) and the second drive rod (42).

8. The epoxy resin casting winding demoulding device according to claim 1, characterized in that: The limiting structure comprises a trolley component (6) movably arranged at the port position of the installation groove (2), and the trolley component (6) has a containing space (61) that can accommodate the installation platform (3) and the casting winding (9); the two limiting rods (5) are relatively movably connected to the containing space of the trolley component (6), and when they are inserted into the bottom of the casting winding (9) towards each other, they abut against the outer wall of the inner membrane (8), so that the casting winding (9) abuts against the two limiting rods (5) when the thrust of the first driving rod disappears.

9. The epoxy resin casting winding demoulding device according to claim 8, characterized in that: The two limit rods (5) are respectively a fixed steel rod (51) fixedly arranged at one end of the trolley component (6), and a movable steel rod (52) movably arranged on the trolley component (6); the other end of the trolley component (6) is provided with a third cylinder (53) for driving the movable steel rod (52) to move toward or away from the fixed steel rod (51).

10. The epoxy resin casting winding demoulding device according to claim 9, characterized in that: The operating table structure (1) is provided with two channel structures (11) extending to both sides of the port of the installation groove (2), and the two sides of the trolley component (6) have a plurality of pulley structures (62) slidably connected to the two channel structures (11). When the trolley component (6) moves along the channel structure (11), it can drive the casting winding (9) to move out of the installation groove (2).

11. The epoxy resin casting winding demoulding device according to any one of claims 8 to 10, characterized in that: The operating table structure (1) is a ground concrete platform or a frame platform, and guardrails (12) are arranged on both sides of the end of the installation groove (2).

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