Acrylic plate shaping equipment

Abstract

The invention relates to the technical field of acrylic plate shaping, and discloses acrylic plate shaping equipment which comprises a protection mechanism, a forming mechanism, a lifting mechanism and a heating mechanism, the forming mechanism is slidably connected to the protection mechanism, a containing space is formed between the protection mechanism and the forming mechanism, and the lifting mechanism is arranged in the containing space. The accommodating space is used for placing an acrylic plate to be shaped; the lifting mechanism comprises a guide frame, a positioning shaft, a compression spring and a guide ring, and the outer surface of the guide frame is fixedly connected with the outer wall of the protection mechanism. According to the acrylic plate shaping equipment, through cooperative arrangement of a compression spring and a guide ring, the guide ring can be driven to move upwards by means of the elastic force of the compression spring, and then the guide ring is used for driving a heating mechanism to press an acrylic plate on the surface of a forming mechanism; and the heating mechanisms which are uniformly distributed can enable the acrylic plate to be better attached to the surface of the forming mechanism, and meanwhile, stable and uniform pressure can be provided for the heating mechanisms.

Description

Technical Field

[0001] The invention relates to the technical field of acrylic plate shaping, and in particular to an acrylic plate shaping device. Background Art

[0002] Acrylic sheet is also called plexiglass, and its chemical name is polymethyl methacrylate. It is a polymer material formed by the polymerization of methyl methacrylate monomers. This material has good transparency, and its light transmittance can reach about 92%, which is close to the light transmittance of glass, and its weight is only about half of that of glass. In many fields such as modern decoration, advertising display, and industrial manufacturing, acrylic sheet is widely used because of its good transparency, chemical stability, and easy processing and molding. The traditional acrylic sheet shaping process often relies on manual operation or simple mechanical assistance, and has many limitations.

[0003] In the traditional process of manually shaping acrylic sheets, the first step is heating. Workers need to rely on past experience to judge the degree of heating required for the acrylic sheets. When the acrylic sheets enter a softened state, they are shaped using molds or hand tools. When the softened acrylic sheets are placed on the molds and pressure is applied to bend or stretch them, workers can only rely on their own strength and skills to ensure uniformity of force. However, human physical strength and force stability are limited, which can easily lead to uneven force on different parts of the acrylic sheets. This method is not only inefficient and difficult to meet the needs of large-scale production, but also difficult to ensure shaping accuracy. It is prone to dimensional deviations, irregular shapes and other problems, resulting in unstable product quality and a high scrap rate. Summary of the invention

[0004] The present invention provides an acrylic plate shaping device, which can press the acrylic plate against the surface of a forming mechanism by the elastic force of a compression spring and a guide ring, thereby replacing the manual operation of staff and improving the overall shaping efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: An acrylic plate shaping device is designed, including a protection mechanism, a molding mechanism, a lifting mechanism and a heating mechanism, wherein: The molding mechanism is slidably connected to the protection mechanism, and a receiving space is formed between the protection mechanism and the molding mechanism, and the receiving space is used to place the acrylic plate to be shaped; The lifting mechanism comprises a guide frame, a positioning shaft, a compression spring and a guide ring, the outer surface of the guide frame is fixedly connected to the outer wall of the protection mechanism, the positioning shaft is fixedly installed on the inner bottom wall of the guide frame, the compression spring is sleeved on the outer wall of the positioning shaft, the guide ring is slidably connected to the outer wall of the positioning shaft, and the bottom of the guide ring is pressed against the top of the compression spring; The end of the heating mechanism is fixedly connected to the outer wall of the guide ring and can be slidably connected to the inner wall of the protective mechanism to heat the acrylic plate to be shaped in the accommodating space and simultaneously lift the bottom of the heated acrylic plate to be shaped.

[0006] Optionally, it also includes a support seat, the protective mechanism is detachably connected to the middle part of the top of the support seat, the four corners of the top of the support seat are fixedly connected to hydraulic rods, and the output end of the hydraulic rod is fixedly connected to a fixing plate.

[0007] Optionally, the forming mechanism includes a forming plate, positioning holes and fixing bolts, wherein the plurality of positioning holes are respectively opened on both sides of the top of the forming plate, the fixing bolts are threadedly penetrated through the inner wall of the positioning holes, and one end of the fixing bolts passes through the forming plate and is threadedly connected to the bottom of the fixing plate.

[0008] Optionally, the protective mechanism includes a protective shell, a plurality of guide grooves and two ventilation holes. The bottom of the protective shell is connected to the middle of the top of the support seat by bolts. The plurality of guide grooves are respectively opened on both sides of the outer surface of the protective shell, and the two ventilation holes are respectively opened at both ends of the protective shell.

[0009] Optionally, the protective shell is slidably connected to the heating mechanism via guide grooves, and the number of the guide frames corresponds to the number of the guide grooves, and the guide frames are fixedly connected to both sides of the protective shell corresponding to the guide grooves (502).

[0010] Optionally, the end of the protective shell is located outside the vent and is detachably connected to a ventilation mechanism, and the ventilation mechanism is used to dissipate heat and cool the heating mechanism and the shaped acrylic plate.

[0011] Optionally, the ventilation mechanism includes a first fixed plate, a second fixed plate, an exhaust fan and a filter, the first fixed plate and the second fixed plate are respectively connected to the two ends of the protective shell by bolts, a plurality of exhaust fans are fixedly installed on the outer wall of the first fixed plate, and the filter is fixedly installed on the outer wall of the second fixed plate.

[0012] Optionally, the heating mechanism includes a fixed rod, an electric heating plate and a protective tube, the two ends of the fixed rod respectively pass through the guide groove and are fixedly connected to the outer wall of the guide ring, the multiple electric heating plates are fixedly connected to the outer wall of the fixed rod, and the protective tube is sleeved on the outer wall of the electric heating plate.

[0013] Optionally, the lifting mechanism further includes a baffle, which is fixedly mounted on the outer wall of the guide frame to block the compression spring.

[0014] The present invention provides an acrylic plate shaping device, which has the following beneficial effects: The acrylic plate shaping device heats the acrylic plate to be shaped in the accommodation space through a heating mechanism, and the shaping mechanism moves toward the heated acrylic plate to be shaped. The shaping mechanism first contacts the heated acrylic plate to be shaped, and continues to move through the shaping mechanism. Since the heated acrylic plate to be shaped abuts the heating mechanism, the guide ring is driven to move downward along the extension direction of the positioning shaft with the shaping mechanism through the connection between the heating mechanism and the guide ring. In this process, the compression spring is relatively gradually compressed, and the compression spring applies an opposite elastic force to the guide ring, thereby pushing The guide ring pushes the heating mechanism to move the acrylic sheet toward the forming mechanism, that is, the forming mechanism and the heating mechanism squeeze the heated acrylic sheet, and the heating mechanism can fit the acrylic sheet to the surface of the forming mechanism, providing relatively stable and uniform pressure, thereby avoiding the problem of uneven force on the acrylic sheet at different parts due to unstable manpower in manual operation, thereby effectively ensuring the shape consistency and dimensional accuracy of the acrylic sheet during the shaping process, greatly reducing the probability of defects such as dimensional deviation and irregular shape in the product, improving the stability of product quality, and reducing the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation structure of the acrylic plate shaping device in the present invention; Figure 2 It is a schematic diagram of the installation structure of the forming mechanism in the present invention; Figure 3 It is a schematic diagram of the installation structure of the ventilation mechanism in the present invention; Figure 4 It is a schematic diagram of the explosion structure of the forming mechanism in the present invention; Figure 5 It is a schematic diagram of the installation structure of the heating mechanism in the present invention; Figure 6 It is a schematic diagram of the explosion structure of the lifting mechanism in the present invention; Figure 7 It is a schematic diagram of the explosion structure of the heating mechanism in the present invention; Figure 8 It is a structural schematic diagram of the protection mechanism in the present invention.

[0016] In the figure: 1. support seat; 2. hydraulic rod; 3. fixing plate; 4. forming mechanism; 401. forming plate; 402. positioning hole; 403. fixing bolt; 5. protection mechanism; 501. protection shell; 502. guide groove; 503. vent; 6. ventilation mechanism; 601. first fixing plate; 602. second fixing plate; 603. exhaust fan; 604. filter; 7. heating mechanism; 701. fixing rod; 702. electric heating plate; 703. protection tube; 8. lifting mechanism; 801. guide frame; 802. positioning shaft; 803. compression spring; 804. guide ring; 805. baffle. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without making creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0018] See also Figures 1 to 8 The embodiment of the present invention provides a shaping device, which is applied to the scene of heating and shaping acrylic plates according to different requirements. In this embodiment, the structure of the shaping device is improved to have the advantages of uniform heating and precise shaping. Specifically, the above-mentioned material can be an acrylic plate. Taking the shaping of the acrylic plate as an example, as a preferred solution in this embodiment, the shaping device is specifically an acrylic plate shaping device, which can evenly heat and precisely shape the acrylic plate when heating and shaping it.

[0019] See also Figures 1 to 8 The present invention provides a technical solution: an acrylic plate shaping device, which is used in scenarios where acrylic plates are heated and shaped according to different needs.

[0020] An acrylic plate shaping device comprises a protection mechanism 5, a shaping mechanism 4, a lifting mechanism 8 and a heating mechanism 7, wherein: The forming mechanism 4 is slidably connected to the protection mechanism 5, and a receiving space is formed between the protection mechanism 5 and the forming mechanism 4, and the receiving space is used to place the acrylic plate to be shaped; The lifting mechanism 8 includes a guide frame 801, a positioning shaft 802, a compression spring 803 and a guide ring 804. The outer surface of the guide frame 801 is fixedly connected to the outer wall of the protection mechanism 5. The positioning shaft 802 is fixedly installed on the inner bottom wall of the guide frame 801. The compression spring 803 is sleeved on the outer wall of the positioning shaft 802. The guide ring 804 is slidably connected to the outer wall of the positioning shaft 802, and the bottom of the guide ring 804 is pressed against the top of the compression spring 803. The end of the heating mechanism 7 is fixedly connected to the outer wall of the guide ring 804 and can be slidably connected to the inner wall of the protective mechanism 5 to heat the acrylic plate to be shaped in the accommodating space and lift the bottom of the heated acrylic plate to be shaped.

[0021] In the shaping process of the acrylic plate shaping device, the acrylic plate to be shaped is placed in the accommodating space, and the compression spring 803 uses its own elastic force to drive the guide ring 804 to move upward, thereby driving the heating mechanism 7 to press the acrylic plate against the surface of the forming mechanism 4.

[0022] In this embodiment, the support seat 1 is provided to provide a stable basic support for the entire device, bear the weight and force of other mechanisms, ensure that the equipment remains stable during operation, and will not affect the shaping accuracy of the acrylic plate due to uneven force or shaking. The guide frame 801 is provided to provide an installation frame for the positioning shaft 802, the compression spring 803 and the guide ring 804, and its outer surface is fixedly connected to the outer wall of the protective mechanism 5, further enhancing the stability and reliability of the entire lifting mechanism 8. The positioning shaft 802 provides guidance and positioning for the compression spring 803 and the guide ring 804, ensuring that the compression spring 803 moves in a predetermined direction during the extension and retraction process without deviation or distortion. At the same time, it also limits the movement trajectory of the guide ring 804 so that it can only move along the positioning shaft 802 The guide ring 804 slides downward to ensure the accuracy and stability of the operation of the lifting mechanism 8. The compression spring 803 uses its own elastic force to drive the guide ring 804 to move upward, and then drives the heating mechanism 7 to press the acrylic plate against the surface of the forming mechanism 4. During the entire shaping process, the compression spring 803 can continuously provide stable pressure to ensure that the acrylic plate and the forming mechanism 4 are tightly fitted to ensure the shaping accuracy and quality. On the one hand, under the guidance of the positioning shaft 802, the guide ring 804 transmits the elastic force of the compression spring 803 to the heating mechanism 7, so that it can accurately apply pressure to the acrylic plate; on the other hand, its slidable connection feature enables the heating mechanism 7 to perform a certain degree of adaptive adjustment according to the thickness of the acrylic plate and changes in the shaping process, further improving the compatibility and shaping effect of the equipment with different acrylic plates.

[0023] In the above embodiment, as a preferred scheme, it also includes a support base 1, and the protective mechanism 5 is detachably connected to the middle part of the top of the support base 1. The four corners of the top of the support base 1 are fixedly connected with hydraulic rods 2, and the output end of the hydraulic rod 2 is fixedly connected with a fixed plate 3. Through the setting of the hydraulic rod 2, the fixed plate 33 can be driven to move up and down, and then the fixed plate 33 drives the forming mechanism 4 to move, so that the forming plate 401 is sent into or pulled out of the protective shell 501, providing sufficient power for the forming of the acrylic plate.

[0024] In the above embodiment, as a preferred scheme, the forming mechanism 4 includes a forming plate 401, a positioning hole 402 and a fixing bolt 403. The multiple positioning holes 402 are respectively opened on both sides of the top of the forming plate 401, and the fixing bolt 403 is threadedly penetrated through the inner wall of the positioning hole 402. One end of the fixing bolt 403 passes through the forming plate 401 and is threadedly connected to the bottom of the fixing plate 3. The forming plate 401 is a key component that directly contacts the acrylic plate and gives it a shape. Its shape determines the final shape of the acrylic plate after shaping. The positioning hole 402 cooperates with the fixing bolt 403 to facilitate the connection and fixation of the forming plate 401 with the fixing plate 3 at the output end of the hydraulic rod 2. This connection method makes the installation and replacement of the forming plate 401 extremely convenient, and the forming plate 401 of different shapes and specifications can be quickly adjusted or replaced according to different shaping requirements, which greatly improves the adaptability and flexibility of the equipment to various product types and improves production efficiency.

[0025] In the above embodiment, as a preferred solution, the protective mechanism 5 includes a protective shell 501, a plurality of guide grooves 502 and two vents 503. The bottom of the protective shell 501 is connected to the middle of the top of the support seat 1 by bolts. The plurality of guide grooves 502 are respectively provided on both sides of the outer surface of the protective shell 501. The two vents 503 are respectively provided at both ends of the protective shell 501. The protective shell 501 is slidably connected to the heating mechanism 7 through the guide grooves 502. The number of guide frames 801 corresponds to the number of guide grooves 502. The guide frames 801 are fixedly connected to the two sides of the protective shell 501 corresponding to the guide grooves 502. The protective mechanism 5 is used to The lifting mechanism 8 plays a role in protection and installation and fixing, providing a stable installation environment for the lifting mechanism 8 to prevent it from being disturbed by external factors. On the other hand, the guide grooves 502 on both sides provide guidance for the sliding of the molding mechanism 4, so that the molding mechanism 4 can move accurately on the predetermined trajectory to ensure the accuracy of the acrylic plate shaping operation. The vents 503 at both ends provide channels for air circulation inside the equipment, which is beneficial to heat dissipation and ventilation, improves the reliability of the operation of the lifting mechanism 8, ensures the accuracy of the movement of the molding mechanism 4, and at the same time improves the air environment inside the equipment, which helps the equipment to operate stably for a long time and ensure the shaping quality.

[0026] In the above embodiment, as a preferred solution, the end of the protective shell 501 is located outside the vent 503 and is detachably connected to a ventilation mechanism 6, which is used to dissipate heat and cool the heating mechanism 7 and the shaped acrylic plate. The ventilation mechanism 6 includes a first fixed plate 601, a second fixed plate 602, an exhaust fan 603 and a filter 604. The first fixed plate 601 and the second fixed plate 602 are respectively connected to the two ends of the protective shell 501 by bolts, and multiple exhaust fans 603 are fixedly installed on the outer wall of the first fixed plate 601, and the filter 604 is fixedly installed on the outer wall of the second fixed plate 602. The first fixed plate 601 and the second fixed plate 602 are respectively fixed at both ends of the protective shell 501, providing an installation base for the exhaust fan 603 and the filter 604. The exhaust fan 603 is used to accelerate the flow of air inside the protective shell 501, and timely discharge the heat generated by the heating mechanism 7 to prevent the internal temperature of the equipment from being too high and having an adverse effect on the shaping of the acrylic plate, such as uneven deformation of the acrylic plate due to overheating. At the same time, it can also protect the electrical components inside the equipment from being damaged by high temperature. The filter 604 can effectively filter tiny particles such as dust and impurities in the air to prevent these impurities from entering the equipment to contaminate the acrylic plate or affect the normal operation of the heating mechanism 7, electric drive components, etc., thereby ensuring the cleanliness of the equipment and the normal service life of each component, thereby indirectly ensuring the quality of the shaping product.

[0027] In the above embodiment, as a preferred solution, the heating mechanism 7 includes a fixed rod 701, an electric heating plate 702 and a protective tube 703. The two ends of the fixed rod 701 are respectively passed through the guide groove 502 and fixedly connected to the outer wall of the guide ring 804. The plurality of electric heating plates 702 are fixedly connected to the outer wall of the fixed rod 701. The protective tube 703 is sleeved with the outer wall of the electric heating plate 702. The fixed rod 701 serves as a supporting structure for the electric heating plate 702, fixes the electric heating plate 702 in a suitable position, and connects it to the guide ring 804, so that the heating mechanism 7 can move up and down with the movement of the guide ring 804. The electric heating plate 702 generates heat by powering on, and heats the bottom of the acrylic plate to soften it for shaping. The evenly distributed electric heating plate 702 can heat the acrylic plate more evenly, which is beneficial to improving the precision and quality of shaping. The protective tube 703 is sleeved on the outer wall of the electric heating plate 702 to reduce heat loss and improve heating efficiency. At the same time, it can also protect the electric heating plate 702 to prevent it from being damaged due to accidental collision or other factors, thereby extending the service life of the electric heating plate 702.

[0028] In the above embodiment, as a preferred solution, the lifting mechanism 8 also includes a baffle 805, which is fixedly installed on the outer wall of the guide frame 801 to block the compression spring 803. The baffle 805 is fixedly installed on the outer wall of the guide frame 801, and mainly plays a blocking role for the compression spring 803 to prevent the compression spring 803 from falling off the positioning shaft 802 due to excessive compression or stretching during the extension and retraction process, thereby ensuring that the compression spring 803 is always in a normal working position, maintaining the stable operation of the lifting mechanism 8, and thus ensuring the normal working order and shaping accuracy of the entire shaping equipment.

[0029] In the present invention, the working steps of the device are as follows: 1. First, the power of the heating mechanism 7 is turned on, and the electric heating plate 702 starts to work, and the heat is transferred to the bottom of the acrylic plate through the protective tube 703, so that the acrylic plate is gradually heated and softened. During the heating process, since the electric heating plate 702 is evenly distributed on the fixed rod 701, the bottom of the acrylic plate can be heated more evenly. During the heating process, the heating time can be pre-set according to the material, thickness and other characteristics of the acrylic plate and the degree of required shaping, or the heating temperature can be monitored by a temperature sensor or other equipment to ensure that the acrylic plate reaches a suitable softening state; 2. Secondly, when the acrylic plate is softened to a suitable degree, the hydraulic rod 2 is started, and the output end of the hydraulic rod 2 drives the fixed plate 3 to move, thereby causing the forming plate 401 of the forming mechanism 4 to move downward along the guide groove 502 of the protective shell 501, gradually approaching the softened acrylic plate. At the same time, the compression spring 803 in the lifting mechanism 8 pushes the guide ring 804 to slide upward along the positioning shaft 802 due to its elastic force, and the guide ring 804 drives the heating mechanism 7 connected thereto to move upward, thereby pressing the acrylic plate against the surface of the forming plate 401. The stable and uniform pressure provided by the compression spring 803 ensures that the acrylic plate is closely attached to the forming plate 401 during the shaping process, so that the acrylic plate can be shaped according to the shape of the forming plate 401, effectively avoiding problems such as irregular shape and size deviation caused by uneven force in manual operation; 3. Then, the pressure of the molding plate 401 on the acrylic plate is maintained for a certain period of time, and the exhaust fan 603 is started at the same time to accelerate the cooling speed of the acrylic plate until the acrylic plate is cooled and shaped, thus completing the shaping process; 4. Finally, the hydraulic rod 2 is controlled to move in the reverse direction to move the forming plate 401 upward and away from the shaped acrylic plate. The shaped acrylic plate can then be taken out of the protective shell 501 manually or with auxiliary tools to prepare for the next shaping operation or subsequent processing.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An acrylic plate shaping device, characterized in that: It comprises a protection mechanism (5), a forming mechanism (4), a lifting mechanism (8) and a heating mechanism (7), wherein: The shaping mechanism (4) is slidably connected to the protection mechanism (5), and a receiving space is formed between the protection mechanism (5) and the shaping mechanism (4), wherein the receiving space is used to place the acrylic plate to be shaped; The lifting mechanism (8) comprises a guide frame (801), a positioning shaft (802), a compression spring (803) and a guide ring (804); the outer surface of the guide frame (801) is fixedly connected to the outer wall of the protection mechanism (5); the positioning shaft (802) is fixedly mounted on the inner bottom wall of the guide frame (801); the compression spring (803) is sleeved on the outer wall of the positioning shaft (802); the guide ring (804) is slidably connected to the outer wall of the positioning shaft (802); and the bottom of the guide ring (804) is pressed against the top of the compression spring (803); The end of the heating mechanism (7) is fixedly connected to the outer wall of the guide ring (804) and is slidably connected to the inner wall of the protection mechanism (5) so as to heat the acrylic plate to be shaped in the accommodation space and simultaneously lift the bottom of the heated acrylic plate to be shaped.

2. The acrylic plate shaping device according to claim 1, characterized in that: It also comprises a support seat (1), the protection mechanism (5) being detachably connected to the middle part of the top of the support seat (1), the four corners of the top of the support seat (1) being fixedly connected to hydraulic rods (2), and the output end of the hydraulic rod (2) being fixedly connected to a fixing plate (3).

3. The acrylic plate shaping device according to claim 2, characterized in that: The forming mechanism (4) comprises a forming plate (401), positioning holes (402) and fixing bolts (403); a plurality of the positioning holes (402) are respectively provided on both sides of the top of the forming plate (401); the fixing bolts (403) are threadedly penetrated through the inner wall of the positioning holes (402); one end of the fixing bolts (403) passes through the forming plate (401) and is threadedly connected to the bottom of the fixing plate (3).

4. The acrylic plate shaping device according to claim 2, characterized in that: The protective mechanism (5) comprises a protective shell (501), a plurality of guide grooves (502) and two ventilation holes (503); the bottom of the protective shell (501) is connected to the middle of the top of the support seat (1) by bolts; the plurality of guide grooves (502) are respectively provided on both sides of the outer surface of the protective shell (501); and the two ventilation holes (503) are respectively provided at both ends of the protective shell (501).

5. The acrylic plate shaping device according to claim 4, characterized in that: The protective shell (501) is slidably connected to the heating mechanism (7) via the guide grooves (502), and the number of the guide frames (801) corresponds to the number of the guide grooves (502), and the guide frames (801) are fixedly connected to both sides of the protective shell (501) corresponding to the guide grooves (502).

6. The acrylic plate shaping device according to claim 4, characterized in that: The end of the protective shell (501) is located outside the vent (503) and is detachably connected to a ventilation mechanism (6), and the ventilation mechanism (6) is used to dissipate heat and cool the heating mechanism (7) and the shaped acrylic plate.

7. The acrylic plate shaping device according to claim 6, characterized in that: The ventilation mechanism (6) comprises a first fixing plate (601), a second fixing plate (602), an exhaust fan (603) and a filter (604); the first fixing plate (601) and the second fixing plate (602) are respectively connected to two ends of the protective shell (501) by bolts; a plurality of the exhaust fans (603) are fixedly mounted on the outer wall of the first fixing plate (601); and the filter (604) is fixedly mounted on the outer wall of the second fixing plate (602).

8. The acrylic plate shaping device according to claim 4, characterized in that: The heating mechanism (7) comprises a fixed rod (701), an electric heating plate (702) and a protective tube (703); the two ends of the fixed rod (701) respectively pass through the guide groove (502) and are fixedly connected to the outer wall of the guide ring (804); the plurality of electric heating plates (702) are fixedly connected to the outer wall of the fixed rod (701); and the protective tube (703) is sleeved on the outer wall of the electric heating plate (702).

9. The acrylic plate shaping device according to claim 1, characterized in that: The lifting mechanism (8) further comprises a baffle (805), wherein the baffle (805) is fixedly mounted on the outer wall of the guide frame (801) to block the compression spring (803).

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