A square beveled mold for easy demolding

Abstract

This invention relates to the field of stamping dies and provides a square beveled die for easy demolding. It includes a base plate, with the platforms connected by a positioning elastic assembly, and a slider and guide rail fixedly connected in the middle. A cantilever bridge is provided on the side wall of the base plate, a hydraulic press is mounted at the top of the cantilever bridge, and five linearly arrayed movable die holders are located below the cantilever bridge. An expansion elastic mechanism is provided between the movable die holders, and a material feeding assembly is provided between the movable die holders and the platforms. A stress oscillation mechanism is provided on one side of the base plate. In use, the winding motor drives the sheet metal material forward by a winding roller, stopping after each unit distance. At this time, the hydraulic press drives the movable die holders down. During the process of forming grooves on the sheet metal material, the distance between the five sets of movable die holders and the bottom die holder also changes, preventing the sheet metal material from being torn during the stamping of the grooves, thus achieving efficient stamping.

Description

Technical Field

[0001] This invention belongs to the field of stamping dies, and specifically relates to a square beveled die that is easy to demold. Background Technology

[0002] With the development of industrial technology, modern stamping die technology has become more and more sophisticated. If multiple wavy grooves need to be stamped on sheet metal, the sheet metal needs to be placed in the stamping die. Each stamping operation requires the sheet metal to be pushed forward a unit distance for the next stamping operation, which is very wasteful of manpower.

[0003] As disclosed in patent number 202211181037.X, this invention provides an easy-to-demold automotive sheet metal stamping die, comprising a base plate, a lower die holder and a guide post fixedly connected to the upper end of the base plate, a mounting plate fixedly connected to the upper end of the guide post, a hydraulic telescopic rod fixedly connected to the upper end of the mounting plate, the output end of the hydraulic telescopic rod passing through the mounting plate, and an upper punch fixedly connected to the output end of the hydraulic telescopic rod; a lifting mechanism is provided inside the lower die holder, a movable plate and a lifting plate are slidably connected inside the lower die holder, a fixed seat is fixedly connected to the lower end of the movable plate, a support rod is rotatably connected to the fixed seat, a connecting post is slidably connected to the movable plate, one end of the connecting post is fixedly connected to the lifting plate, and the other end of the connecting post is fixedly connected to a connecting plate; a first spring is fixedly connected to the upper end of the connecting plate, and the upper end of the first spring is fixedly connected to the movable plate. This invention improves work efficiency by allowing the stamped automotive sheet metal to be detached from the lower die holder under the action of the lifting plate.

[0004] The device has several drawbacks. First, it can only stamp one groove shape at a time. If many shapes need to be stamped from sheet metal, the sheet metal needs to be positioned in multiple stamping dies for stamping. Second, the sheet metal is prone to torsion during handling, which can cause stress depressions. These stress depressions need to be tapped to reset them. Small stress depressions are not easily observed and therefore cannot be manually tapped to reset them. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a square beveled mold that facilitates demolding. In use, the winding motor drives the sheet metal material forward by a winding roller, stopping after each unit distance. At this point, the hydraulic press lowers the movable mold base. When the movable mold base and the bottom mold base merge, a groove is pressed into the sheet metal material between them. During the formation of the groove, the distance between the five movable mold bases and the bottom mold base also changes, preventing the sheet metal material from tearing during the stamping process. This solves the problems mentioned in the background art.

[0006] To solve the above problems, the present invention provides the following technical solution: a square beveled mold for easy demolding, comprising a base plate, two guide rails at the top of the base plate, five sets of sliders slidably mounted on the guide rails, a platform fixedly mounted at the top of each set of sliders, a concave mold assembly on the platform, each platform connected by a positioning elastic component, and the middle slider fixedly connected to the guide rails; a cantilever bridge is provided on the side wall of the base plate, a hydraulic press is provided at the top of the cantilever bridge, and five linear array movable mold seats are provided below the cantilever bridge, each movable mold seat having a through hole in the middle, with two extended cantilever beams connected in series inside the through hole, the middle movable mold seat and the two extended cantilever beams locked together by a pressing bolt, and the middle movable mold seat is mounted on the output rod of the hydraulic press, an expansion elastic mechanism is provided between the movable mold seats, and a material feeding component is provided between the movable mold seats and the platform; a stress vibration mechanism is provided on one side of the base plate.

[0007] Furthermore, the feeding assembly includes sheet metal twisting at the front and rear of the base plate, a winding roller is rotatably arranged in the middle of the front sheet metal twisting, and a feeding roller is rotatably arranged in the middle of the rear sheet metal twisting. The winding roller is installed on the output end of the winding motor, and the outer side of the feeding roller pulls out the sheet metal material and connects it to the outer side wall of the winding roller.

[0008] Furthermore, the concave mold assembly includes two bottom mold bases at the top of the platform, which are fixed to the top surface of the platform by countersunk bolts, and the bottom mold bases are made of high-speed steel.

[0009] Furthermore, the bottom contour of the movable mold base matches the cavity between each set of bottom mold bases, and thickened tiles can be installed on the bottom surface of the movable mold base.

[0010] Furthermore, the expansion elastic mechanism includes a tension spring between the movable mold bases, and organic oil is applied between the extension beam and the through hole on the movable mold base.

[0011] Furthermore, the positioning elastic component includes a horizontal bar on the side wall of the platform, with a circular piece at the end of the horizontal bar. The circular pieces are connected in series by an expansion spring, and the distance between the platforms formed by the elastic force of the expansion spring is equal to the distance between the movable mold bases formed by the elastic force of the tension spring. The movable mold bases correspond one-to-one with each set of bottom mold bases in the vertical direction.

[0012] Furthermore, the stress oscillation mechanism includes a fixedly installed oscillation frame, an oscillation rod rotatably installed in the middle of the oscillation frame, a receiving chamber on the oscillation rod, a bent plate installed inside each receiving chamber, the oscillation rod is installed on the output shaft of the stepper motor, the oscillation rod is made of plastic, and the structure of the oscillation rod is a thin-walled shell with a thickness of two millimeters.

[0013] Furthermore, the accommodating chamber includes a filling groove on the outside of the vibration frame, with bent plates filled inside the filling groove. The width of the filling groove is five millimeters greater than the thickness of the bent plates, and steel sheets with a thickness of one millimeter can be installed on the two side walls of the filling groove. A sealing mechanism is provided on the outside of the filling groove.

[0014] Furthermore, the sealing mechanism includes end plates at both ends of the vibrating roller, with a shaft hole in the middle of the end plate that matches the output shaft of the stepper motor, and a shielding tile mechanism on the outer side of the filling groove.

[0015] Furthermore, the shielding tile mechanism includes a locking tile at the filling groove port, with magnetic strips on both sides of the locking tile, and an iron sheet matching the magnetic strips at the filling groove port.

[0016] Compared with the prior art, the embodiments of this application have the following main advantages:

[0017] Firstly, when the device is in use, the winding motor drives the sheet metal material to advance one unit distance via the winding roller and then stops. At this time, the hydraulic press drives the movable die base to fall down. When the movable die base and the bottom die base merge, the sheet metal material between the movable die base and the bottom die base will be pressed into a groove. During the process of forming the groove on the sheet metal material, the distance between the five sets of movable die bases and the bottom die base will also change to prevent the sheet metal material from being torn during the process of stamping the groove.

[0018] Secondly, the stamped sheet metal material will form a wave-like shape. The wave-like sheet metal material is then cut into small segments, and each segment is placed inside the filling groove on the outside of the vibrating roller. The locking plate on the outside of the filling groove is then installed to restrict the position of the wave-like sheet metal. The stepper motor drives the vibrating roller to rotate back and forth 30 degrees quickly. When the wave-like sheet metal is vibrated, the stress indentation formed on the sheet metal due to the torsional force of the transport will bounce back and flatten. Attached Figure Description

[0019] Figure 1 This is a frontal view of the present invention.

[0020] Figure 2 This is a schematic diagram of the invention from the side.

[0021] Figure 3 This is a schematic diagram showing a cross-section of the present invention.

[0022] Figure 4 This is a schematic diagram of the second cross-section view of the present invention.

[0023] Figure 5 This is a schematic diagram of the bottom mold base of the present invention.

[0024] Figure 6 This is a schematic diagram of the vibrating roller of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] Sheet metal twisting 1, winding roller 101, winding motor 102, unloading roller 103, sheet metal material 2, cantilever bridge 3, hydraulic press 301, vibration frame 4, vibration roller 401, end plate 402, stepper motor 403, filling groove 404, bent plate 405, clamping tile 406, base plate 5, guide rail 501, slider 502, platform 6, bottom mold base 601, round piece 602, expansion spring 603, movable mold base 7, extension cantilever beam 701, tension spring 702. Detailed Implementation

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] This invention provides a square beveled mold that facilitates demolding, such as... Figure 1-6As shown, the system includes a base plate 5. Two guide rails 501 are mounted on the top of the base plate 5. Five sets of sliders 502 are slidably mounted on the guide rails 501. A platform 6 is fixedly mounted on the top of each set of sliders 502. A concave mold assembly is mounted on the platform 6. Each platform 6 is connected to the others via a positioning elastic assembly. The middle slider 502 is fixedly connected to the guide rails 501. A cantilever bridge 3 is provided on the side wall of the base plate 5. A hydraulic press 301 is mounted on the top of the cantilever bridge 3. Five linear array movable mold bases 7 are arranged below. The movable mold base 7 has an insertion hole in the middle. Two extension beams 701 are connected in series inside the insertion hole. The movable mold base 7 in the middle position and the two extension beams 701 are locked together by a pressing bolt. The movable mold base 7 in the middle position is mounted on the output rod of the hydraulic press 301. An expansion elastic mechanism is arranged between the movable mold bases 7. A material feeding assembly is arranged between the movable mold base 7 and the platform 6. A stress vibration mechanism is arranged on one side of the base plate 5.

[0030] In this embodiment, the hydraulic press 301 drives the movable mold base 7 to fall down. When the movable mold base 7 and the bottom mold base 601 merge, the sheet metal between the movable mold base 7 and the bottom mold base 601 will be pressed into a groove. During the process of forming the groove on the sheet metal material, the distance between the five sets of movable mold bases 7 and bottom mold bases 601 will also change. Compared with the sheet metal stamping dies of the prior art, the sheet metal between the two stamping grooves on the sheet metal will be stretched. If the two stamping grooves are relatively large, the sheet metal between the two stamping grooves will be stretched or even torn. During the formation of the five stamping grooves of this device, the distance between the five stamping dies can also be changed accordingly to avoid the sheet metal being torn.

[0031] In further embodiments of the present invention, such as Figure 1-3 As shown, the feeding assembly includes sheet metal twisting 1 at the front and rear of the base plate 5. A winding roller 101 is rotatably arranged in the middle of the front sheet metal twisting 1, and a feeding roller 103 is rotatably arranged in the middle of the rear sheet metal twisting 1. The winding roller 101 is installed on the output end of the winding motor 102. The outer side of the feeding roller 103 pulls out the sheet metal material 2 and connects it to the outer side wall of the winding roller 101.

[0032] In this embodiment, the winding motor 102 drives the sheet metal material 2 to stop after advancing one unit distance via the winding roller 101. After the wavy groove is formed on the sheet metal material 2, it is wound onto the winding roller 101.

[0033] In further embodiments of the present invention, such as Figure 1-5 As shown, the concave mold assembly includes two bottom mold bases 601 at the top of the platform 6. The bottom mold bases 601 are fixed to the top surface of the platform 6 by countersunk bolts. The bottom mold bases 601 are made of high-speed steel.

[0034] In this embodiment, the movable mold base 7 is inserted between two bottom mold bases 601 to perform stamping. The operator can reduce or increase the distance between the two bottom mold bases 601 according to the stamping requirements, thereby changing the size of the stamping groove.

[0035] In further embodiments of the present invention, such as Figure 1-5 As shown, the bottom contour of the movable mold base 7 matches the cavity between each set of bottom mold bases 601, and thickened tiles can be installed on the bottom surface of the movable mold base 7.

[0036] In this embodiment, while the distance between the two bottom mold bases 601 is reduced, thickened tiles are installed on the bottom surface of the movable mold base 7 to fit the bottom mold base 601.

[0037] In further embodiments of the present invention, such as Figure 1-4 As shown, the expansion elastic mechanism includes a tension spring 702 between the movable mold bases 7, and organic oil is applied between the extension beam 701 and the through hole on the movable mold base 7.

[0038] In this embodiment, when the movable mold base 7 is pressed downward, all the tension springs 702 between the movable mold bases 7 are compressed. When the movable mold base 7 is raised upward, the movable mold base 7 expands due to the elastic force of the tension springs 702 until the elastic force of the tension springs 702 is completely released.

[0039] In further embodiments of the present invention, such as Figure 1-5 As shown, the positioning elastic component includes a crossbar on the side wall of the platform 6, with a circular piece 602 at the end of the crossbar. The circular pieces 602 are connected in series by an expansion spring 603. The distance between the platforms 6 formed by the elastic force of the expansion spring 603 is equal to the distance between the movable mold bases 7 formed by the elastic force of the tension spring 702. The movable mold bases 7 correspond one-to-one with each set of bottom mold bases 601 in the vertical direction.

[0040] In this embodiment, when the elastic force of the expansion springs 603 between the platforms 6 is fully released, the distance between the platform 6 and the bottom mold base 601 at its top will be fully expanded, so that it can correspond to the platform 6 above it.

[0041] In further embodiments of the present invention, such as Figure 1-6 As shown, the stress oscillation mechanism includes a fixedly installed oscillation frame 4, with an oscillation rod 401 rotatably installed in the middle of the oscillation frame 4. The oscillation rod 401 is provided with a receiving chamber, and each receiving chamber is equipped with a bent plate 405. The oscillation rod 401 is installed on the output shaft of the stepper motor 403. The oscillation rod 401 is made of plastic and has a thin-walled shell with a thickness of two millimeters.

[0042] In this embodiment, the stamped sheet metal material 2 will form a wavy state. The wavy sheet metal material 2 is then cut into small segments to form bent plates 405. Each bent plate 405 is placed inside the receiving chamber outside the vibrating roller 401. The stepper motor 403 drives the vibrating roller 401 to rotate back and forth rapidly by thirty degrees. When the wavy sheet metal is vibrated, the stress depression formed on the sheet metal due to the torsional force during handling will bounce back and flatten. Compared with the sheet metal stamping device of the prior art, the sheet metal will be subjected to torsional force during handling and recovery, and the torsional force will form stress depression on the surface of the sheet metal, and the contour of the finished sheet metal product will be deformed.

[0043] In further embodiments of the present invention, such as Figure 1-6 As shown, the accommodating chamber includes a filling groove 404 on the outside of the vibration frame 4. A bent plate 405 is filled inside the filling groove 404. The width of the filling groove 404 is five millimeters greater than the thickness of the bent plate 405. Steel sheets with a thickness of one millimeter can be installed on the two side walls of the filling groove 404. A sealing mechanism is provided on the outside of the filling groove 404.

[0044] In this embodiment, the bent sheet metal 405 is placed inside the filling groove 404. The gap of the filling groove 404 is larger than that of the wavy sheet metal, which allows the wavy sheet metal to vibrate inside the filling groove 404. Adding steel sheets inside the filling groove 404 can reduce the gap between the filling groove 404 and the wavy sheet metal.

[0045] In further embodiments of the present invention, such as Figure 1-6 As shown, the sealing mechanism includes end plates 402 at both ends of the vibrating roller 401. The end plates 402 have a shaft hole in the middle that matches the output shaft of the stepper motor 403. A shielding tile mechanism is provided on the outer side of the filling groove 404.

[0046] In this embodiment, the end plate 402 blocks the front and rear ports of the filling groove 404 to prevent the bent plate 405 from falling out of the front and rear ports of the filling groove 404.

[0047] In further embodiments of the present invention, such as Figure 1-6 As shown, the shielding tile mechanism includes a locking tile 406 at the port of the filling groove 404. Magnet strips are provided on both sides of the locking tile 406, and an iron piece matching the magnet strips is provided at the port of the filling groove 404.

[0048] In this embodiment, before disassembling the bent plate 405, the locking tile 406 is removed and pulled outward until the iron sheet is freed from the attraction of the magnetic strip on the inner wall of the locking tile 406.

[0049] Working principle: The hydraulic press 301 drives the movable die base 7 to fall down. When the movable die base 7 and the bottom die base 601 merge, the sheet metal between the movable die base 7 and the bottom die base 601 will be pressed into a groove. During the process of forming the groove on the sheet metal material, the distance between the five sets of movable die bases 7 and bottom die bases 601 will also change. Compared with the existing sheet metal stamping dies, the sheet metal between two stamping grooves on the sheet metal will be stretched. If the two stamping grooves are relatively large, the sheet metal between the two stamping grooves will be stretched or even torn. During the formation of the five stamping grooves in this device, the distance between the five stamping dies can also be changed accordingly to avoid the sheet metal being torn. The winding motor 102 drives the winding roller 101 to... The sheet metal material 2 stops after advancing one unit distance. After the wavy groove is formed on the sheet metal material 2, it is rolled onto the take-up roller 101. The movable die holder 7 is inserted between the two bottom die holders 601 to perform stamping. The operator can reduce or increase the distance between the two bottom die holders 601 according to the stamping requirements, thereby changing the size of the stamping groove. While the distance between the two bottom die holders 601 is reduced or increased, a thickened tile is installed on the bottom surface of the movable die holder 7 to fit the bottom die holders 601. When the movable die holder 7 is stamping downwards, all the tension springs 702 between the movable die holders 7 are compressed. When the movable die holder 7 is rising upwards, it expands due to the elastic force of the tension springs 702 until... When the tension spring 702 is fully released and the expansion spring 603 between the platforms 6 is fully released, the distance between the platform 6 and the bottom mold base 601 at its top will be fully expanded, allowing it to align with the platform 6 above it. The stamped sheet metal material 2 will form a wavy shape. The wavy sheet metal material 2 is then cut into small segments to form bent plates 405. Each bent plate 405 is placed inside the receiving chamber outside the vibrating roller 401. The stepper motor 403 drives the vibrating roller 401 to rotate back and forth rapidly by thirty degrees. When the wavy sheet metal is vibrated, the stress indentation formed on the sheet metal due to the torsional force during handling will bounce back and flatten. Compared with the existing sheet metal stamping device, the sheet metal is more flexible during handling. The sheet metal will be subjected to torsional force, which will form stress depressions on the sheet metal surface, thus deforming the contour of the finished sheet metal product. The bent sheet 405 is placed inside the filling groove 404. The gap of the filling groove 404 is larger than that of the wavy sheet metal, which allows the wavy sheet metal to vibrate inside the filling groove 404. Adding a steel sheet inside the filling groove 404 can reduce the gap between the filling groove 404 and the wavy sheet metal. The end plate 402 blocks the front and rear ports of the filling groove 404 to prevent the bent sheet 405 from falling out of the front and rear ports of the filling groove 404. Before disassembling and assembling the bent sheet 405, the retaining tile 406 is removed. The retaining tile 406 is pulled outward until the iron sheet is freed from the attraction of the magnetic strip on the inner wall of the retaining tile 406.

[0050] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0051] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0052] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A square beveled mold for easy demolding, characterized in that: Includes a base plate (5), the top of which is provided with two guide rails (501), five sets of sliders (502) are slidably mounted on the guide rails (501), and a platform (6) is fixedly mounted on the top of each set of sliders (502). A concave mold assembly is provided on the platform (6), and each platform (6) is connected to each other by a positioning elastic assembly. The slider (502) in the middle position is fixedly connected to the guide rail (501). A cantilever bridge (3) is provided on the side wall of the base plate (5). A hydraulic press (301) is provided at the top of the cantilever bridge (3). Five linear array movable mold seats (7) are provided below the cantilever bridge (3). An insertion hole is provided in the middle of the movable mold seat (7). Two extension cantilever beams (701) are connected in series inside the insertion hole. The movable mold seat (7) in the middle position and the two extension cantilever beams (701) are locked together by a pressing bolt. The movable mold seat (7) in the middle position is installed on the output rod of the hydraulic press (301). An expansion elastic mechanism is provided between the movable mold seats (7). A material feeding assembly is provided between the movable mold seat (7) and the platform (6). A stress oscillation mechanism is provided on one side of the base plate (5); the stress oscillation mechanism includes a fixedly installed oscillation frame (4), an oscillation rod (401) is rotatably installed in the middle of the oscillation frame (4), a receiving chamber is provided on the oscillation rod (401), and a bent plate (405) is installed inside each receiving chamber. The oscillation rod (401) is installed on the output shaft of the stepper motor (403). The material of the oscillation rod (401) is plastic, and the structure of the oscillation rod (401) is a thin-walled shell with a thickness of two millimeters. The receiving chamber includes a filling groove (404) on the outside of the oscillation frame (4), and the bent plate (405) is filled inside the filling groove (404). The width of the filling groove (404) is five millimeters greater than the thickness of the bent plate (405), and steel sheets with a thickness of one millimeter can be installed on the two side walls of the filling groove (404). A sealing mechanism is provided on the outside of the filling groove (404). The sealing mechanism includes end plates (402) at both ends of the vibrating roller (401). A shaft hole matching the output shaft of the stepper motor (403) is provided in the middle of the end plate (402). A shielding tile mechanism is provided on the outside of the filling groove (404). The shielding tile mechanism includes a locking tile (406) at the port of the filling groove (404). Magnet strips are provided on both sides of the locking tile (406). An iron sheet matching the magnet strip is provided at the port of the filling groove (404).

2. The square beveled mold for easy demolding according to claim 1, characterized in that: The feeding assembly includes sheet metal twisting (1) at the front and rear of the base plate (5). A winding roller (101) is rotatably arranged in the middle of the front sheet metal twisting (1), and a feeding roller (103) is rotatably arranged in the middle of the rear sheet metal twisting (1). The winding roller (101) is installed on the output end of the winding motor (102). The outer side of the feeding roller (103) pulls out the sheet metal material (2) and connects it to the outer side wall of the winding roller (101).

3. A square beveled mold for easy demolding according to claim 1, characterized in that: The concave mold assembly includes two bottom mold bases (601) at the top of the platform (6). The bottom mold bases (601) are fixed to the top surface of the platform (6) by countersunk bolts. The bottom mold bases (601) are made of high-speed steel.

4. A square beveled mold for easy demolding according to claim 1, characterized in that: The bottom contour of the movable mold base (7) matches the cavity between each set of bottom mold bases (601), and thickened tiles can be installed on the bottom surface of the movable mold base (7).

5. A square beveled mold for easy demolding according to claim 1, characterized in that: The expansion elastic mechanism includes a tension spring (702) between the movable mold base (7), and organic oil is applied between the extension beam (701) and the through hole on the movable mold base (7).

6. A square beveled mold for easy demolding according to claim 1, characterized in that: The positioning elastic component includes a crossbar on the side wall of the platform (6), with a circular piece (602) at the end of the crossbar. The circular pieces (602) are connected in series by an expansion spring (603), and the distance between the platforms (6) formed by the elastic force of the expansion spring (603) is equal to the distance between the movable mold bases (7) formed by the elastic force of the tension spring (702). The movable mold bases (7) correspond one-to-one with each set of bottom mold bases (601) in the vertical direction.

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