Constant-temperature sulfur flattening equipment for producing tempered PS (polystyrene) plate

Abstract

The utility model relates to the technical field of tempered PS (polystyrene) plate production, in particular to constant-temperature flattening equipment for tempered PS plate production, which comprises a lower box body with an opening at the upper end and an upper box body with an opening at the lower end, a plate inlet hole and a plate outlet hole are respectively arranged on two sides of the upper box body, and a plurality of driving rollers are rotatably connected in the lower box body at intervals. A plurality of electric heating rods are connected to an inner cavity of the upper box body at intervals, a driving chain wheel assembly and a driven chain wheel assembly are rotationally connected to the two ends in the upper box body respectively, two transmission chains are connected between the driving chain wheel assembly and the driven chain wheel assembly, and a plurality of V-shaped plates are connected between the transmission chains at intervals; the telescopic driving rod assembly is used for driving the upper box body to swing, and the smoke discharging mechanism is suitable for sucking away smoke in the upper box body and the lower box body. The device is reasonable in structure, the temperature difference close to the upper plane area of the PS plate is reduced, hardening liquid on the PS plate is evenly heated to be subjected to sulfur flattening, and the sulfur flattening effect of the hardening liquid on the PS plate is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of tempered PS sheet production technology, and in particular to a constant temperature sulfur leveling device for tempered PS sheet production. Background Technology

[0002] Tempered PS sheets are produced by applying a hardening agent to the surface of a PS sheet (polystyrene plastic sheet), followed by constant-temperature curing and solidification. This process forms a strong and transparent protective film, significantly improving the surface hardness and wear resistance of the PS sheet. Constant-temperature curing is a crucial step in enhancing these properties. The process involves using curing equipment to apply the hardening agent to the PS sheet surface. This equipment consists of an upper chamber and a lower chamber. The lower chamber contains several motorized rollers, while the upper chamber contains several electrically heated rods at intervals. The heating rods generate heat, maintaining a constant temperature within both chambers. The PS sheet, after being coated with the hardening agent, passes through the upper chamber. The constant-temperature heat heats the agent, ensuring its even distribution and achieving the desired curing effect.

[0003] Regarding the aforementioned technologies, the inventors discovered that due to the large distance between adjacent electric heating rods, the area below the electric heating rod is closer to it, while the area directly below the center of adjacent electric heating rods is farther away. Therefore, there is a certain temperature difference between the two areas. This causes the PS board, after being coated with the hardening liquid, to be frequently heated alternately by the two different areas with a certain temperature difference during its movement within the upper chamber for sulfur leveling. This reduces the sulfur leveling effect of the hardening liquid on the PS board, thus reducing the quality of the product. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a constant temperature sulfur leveling device for the production of tempered PS sheets, which reduces the temperature difference near the flat surface area of ​​the PS sheet, so that the hardening liquid on the PS sheet is heated evenly for sulfur leveling, thereby enhancing the sulfur leveling effect of the hardening liquid on the PS sheet and improving the quality of the tempered PS sheet.

[0005] To solve the above-mentioned technical problems, the present invention provides a constant temperature sulfur leveling device for the production of tempered PS sheets, comprising: a lower box with an opening at the top and an upper box with an opening at the bottom. The upper box has an inlet hole and an outlet hole on both sides. One side of the upper box is hinged to one side of the lower box. A plurality of drive rollers are rotatably connected at intervals inside the lower box. A plurality of electric heating rods are rotatably connected to the inner cavity of the upper box. A drive sprocket assembly and a driven sprocket assembly are rotatably connected to both ends inside the upper box. Two transmission chains located outside the electric heating rods are connected between the drive sprocket assembly and the driven sprocket assembly. A plurality of V-shaped plates for scraping the electric heating rods to evenly distribute the heat generated by the electric heating rods are rotatably connected between the transmission chains.

[0006] It also includes a smoke exhaust mechanism and a telescopic drive rod assembly for driving the upper housing to swing, wherein the smoke exhaust mechanism is adapted to draw smoke from the upper and lower housings.

[0007] By adopting the above technical solution, during use, the electric heating rod generates heat after being connected to an external power source. Once the temperature inside the upper chamber rises to a certain level, the PS board coated with hardening liquid enters horizontally into the inner cavity of the upper chamber through the inlet hole. The drive roller moves the PS board, and the heat inside the upper chamber maintains a constant temperature for the hardening liquid on the PS board. At this time, the active sprocket assembly rotates the driven sprocket assembly via the transmission chain, which in turn moves the V-shaped plate. The V-shaped plate causes the heat in the area below the electric heating rod to flow diagonally downwards, resulting in a more uniform heat distribution near the flat surface of the PS board. The hardening liquid on the PS board is uniformly heated at a constant temperature for sulfur leveling, which enhances the sulfur leveling effect of the hardening liquid on the PS board and improves the quality of the tempered PS board. After sulfur leveling, the PS board is removed through the board outlet and then cured to form a tempered PS board. During the process of heating and sulfur leveling the hardening liquid, smoke is generated, which will produce a certain odor. Through the use of the smoke exhaust mechanism, the smoke is sucked away and treated uniformly to reduce the pollution of the smoke to the working environment. When it is necessary to open the upper box to maintain the electric heating rod and drive roller, the telescopic drive rod assembly is operated to drive the upper box to swing, so that the upper box and the lower box are separated, which improves the convenience of maintenance.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the smoke exhaust mechanism includes a smoke exhaust pipe, a switching valve, and a diversion pipe body with an outer sealed end. The smoke exhaust pipe is connected to the upper plane of the upper housing. The switching valve is installed on the smoke exhaust pipe. The open end of the diversion pipe body is connected to the outer circle of the smoke exhaust pipe and located below the switching valve. Four connector pipes are connected at intervals on the diversion pipe body. The invention also includes upper smoke exhaust heads connected to both ends of the upper housing and lower smoke exhaust heads connected to both ends of the lower housing. The upper smoke exhaust heads are connected to their corresponding connector pipes via flexible hoses. The lower smoke exhaust heads are connected to their corresponding connector pipes via flexible hoses. The upper end of the smoke exhaust pipe is connected to an external smoke extractor via a flexible hose.

[0009] By adopting the above technical solution, the external smoke extractor draws air from the exhaust pipe, the diversion pipe, the upper smoke head, and the lower smoke head, creating a negative pressure state inside the upper and lower smoke heads. The upper and lower smoke heads located on the upper and lower sides of the inlet hole draw in the smoke flowing out of the inlet hole, and the upper and lower smoke heads located on the upper and lower sides of the outlet hole draw in the smoke flowing out of the outlet hole. When timely maintenance and repair of the electric heating rod and the drive roller are required, after opening the switch valve, the exhaust pipe in a negative pressure state draws in the smoke inside the upper and lower boxes. The telescopic drive rod assembly is operated to open the upper box, reducing the amount of smoke flowing into the working environment.

[0010] In a preferred embodiment, the present invention can be further configured as follows: the telescopic drive rod assembly includes a cylinder, a hinged seat, a U-shaped seat, and a T-shaped seat. The U-shaped seat is connected to the end of the telescopic rod of the cylinder, the T-shaped seat is connected to the upper housing, the T-shaped seat extends into the inner cavity of the U-shaped seat and is connected by a pin, the hinged seat includes hinged seats disposed on both sides of the cylinder and a circular tube fitted onto the outer circle of the cylinder, two rotating shafts are symmetrically connected to the outer circle of the circular tube, the outer ends of the rotating shafts pass through the hinged seats and are rotatably connected to them, and the hinged seats are connected to the lower housing.

[0011] By adopting the above technical solution, the cylinder's telescopic rod extends and retracts, thereby driving the upper housing to swing, which improves the convenience of maintenance and repair.

[0012] In a preferred embodiment, the present invention can be further configured such that: the active sprocket assembly includes an active shaft and two active sprockets spaced apart at its two ends; the two ends of the active shaft pass through the side wall of the upper housing and are rotatably connected; and one end of the active sprocket is connected to a servo motor.

[0013] By adopting the above technical solution, the servo motor drives the drive shaft to rotate, and the drive shaft drives the drive sprocket to rotate.

[0014] In a preferred embodiment, the present invention can be further configured such that: the driven sprocket assembly includes a driven shaft and two driven sprockets spaced apart at its two ends; the two ends of the driven shaft pass through the side wall of the upper housing and are rotatably connected; and the driven sprockets are connected to the corresponding driving sprockets by the transmission chain.

[0015] By adopting the above technical solution, the driving sprocket drives the driven sprocket to rotate through the transmission chain, and the transmission chain drives the V-shaped plate to move. The V-shaped plate drives the heat in the area below the electric heating rod to flow obliquely downward, so that the heat distribution in the area near the flat surface of the PS plate is uniform.

[0016] In a preferred embodiment, the present invention can be further configured such that the top edge of the outer circle of the drive roller is higher than the upper edge of the lower housing, and the bottom of the lower housing is connected with a plurality of support legs at intervals.

[0017] By adopting the above technical solution, the driving roller is an electric roller. Since the top of the outer circle of the driving roller is higher than the upper edge of the lower box, there is no friction between the PS board and the lower box.

[0018] In a preferred embodiment, this utility model can be further configured to include a temperature control system, which includes a PLC controller, contactors, and a plurality of temperature sensors spaced apart. The PLC controller is electrically connected to the contactors, and the PLC controller is electrically connected to each of the temperature sensors. The temperature sensors are mounted on the upper housing and extend into its inner cavity, and the contactors are electrically connected to the electric heating rods.

[0019] By adopting the above technical solution, the temperature sensor monitors the temperature inside the upper chamber. When the temperature inside the upper chamber is lower than the set minimum temperature, the temperature sensor sends a signal to the PLC controller, which in turn sends a signal to the contactor. The contactor then connects the electric heating rod to the external power supply for heating. When the temperature inside the upper chamber is higher than the set maximum temperature, the temperature sensor sends a signal to the PLC controller, which in turn sends a signal to the contactor. Through the action of the contactor, the electric heating rod is disconnected from the external power supply and heating is stopped.

[0020] In summary, this utility model has at least one of the following beneficial technical effects:

[0021] After the electric heating rod is connected to an external power source, it generates heat. The active sprocket assembly works by driving the driven sprocket assembly to rotate through the transmission chain. The transmission chain drives the V-shaped plate to move, and the V-shaped plate drives the heat in the area below the electric heating rod to flow downwards at an angle, so that the heat distribution in the area near the flat surface of the PS board is uniform. The hardening liquid on the PS board is uniformly heated at a constant temperature to achieve sulfur leveling, which enhances the sulfur leveling effect of the hardening liquid on the PS board and improves the quality of the tempered PS board. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0023] Figure 1 This is a schematic diagram of a preferred embodiment of a constant temperature sulfur leveling device for the production of tempered PS sheets according to this utility model.

[0024] Figure 2 yes Figure 1 Sectional view along line AA.

[0025] Figure 3 yes Figure 2 A schematic diagram showing the connection between the drive sprocket assembly, the driven sprocket assembly, the transmission chain, and the electric heating rod.

[0026] In the diagram: 1. Lower housing; 2. Upper housing; 30. Drive sprocket assembly; 40. Driven sprocket assembly;

[0027] 50. Smoke exhaust mechanism; 60. Telescopic drive rod assembly; 70. Temperature control system;

[0028] 11. Inlet hole; 12. Outlet hole; 13. Drive roller; 14. Electric heating rod; 15. Conveyor chain;

[0029] 16. V-shaped plate; 17. Support legs;

[0030] 31. Drive shaft; 32. Drive sprocket; 33. Servo motor;

[0031] 41. Driven shaft; 42. Driven sprocket;

[0032] 51. Exhaust pipe; 52. Switch valve; 53. Diverter pipe body; 54. Connector pipe; 55. Top smoke inlet;

[0033] 56. Lower the cigarette butt

[0034] 61. Cylinder; 62. Hinge seat; 63. U-shaped seat; 64. T-shaped seat;

[0035] 621. Hinge seat; 622. Circular tube; 623. Rotating shaft;

[0036] 71. PLC controller; 72. Temperature sensor; 73. Contactor. Detailed Implementation

[0037] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0038] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0039] Reference Figures 1-3 This utility model discloses a constant temperature sulfur leveling device for producing tempered PS sheets, comprising: a lower box 1 with an upper opening and an upper box 2 with a lower opening. The upper box 2 has an inlet hole 11 and an outlet hole 12 on both sides, respectively. One side of the upper box 2 is hinged to one side of the lower box 1. The upper box 2 and the lower box 1 are connected by a shaft hinge. Several drive rollers 13 are rotatably connected at intervals inside the lower box 1. The drive rollers 13 are electric rollers. The top of the outer circle of the drive rollers 13 is higher than the upper edge of the lower box 1. Several support legs 17 are connected at intervals at the bottom of the lower box 1. The PS sheet after being coated with hardening liquid moves into the upper box 2 through the inlet hole 11.

[0040] The inner cavity of the upper housing 2 is connected with several electric heating rods 14 at intervals. The electric heating rods 14 generate heat after being connected to an external power source. The two ends of the upper housing 2 are respectively rotatably connected to a drive sprocket assembly 30 and a driven sprocket assembly 40. Two transmission chains 15 located outside the electric heating rods 14 are connected between the drive sprocket assembly 30 and the driven sprocket assembly 40. Several V-shaped plates 16 are connected between the transmission chains 15 at intervals to scrape the heat generated by the electric heating rods 14 and distribute it evenly.

[0041] The drive sprocket assembly 30 includes a drive shaft 31 and two drive sprockets 32 spaced apart at both ends thereon. The two ends of the drive shaft 31 pass through the side wall of the upper housing 2 and are rotatably connected. One end of the drive sprocket 32 ​​is connected to a servo motor 33. The servo motor 33 drives the drive shaft 31 to rotate, and the drive shaft 31 drives the drive sprocket 32 ​​to rotate.

[0042] The driven sprocket assembly 40 includes a driven shaft 41 and two driven sprockets 42 spaced apart at its ends. The two ends of the driven shaft 41 pass through the side wall of the upper housing 2 and are rotatably connected. The driven sprockets 42 are connected to the corresponding driving sprockets 32 by the transmission chain 15. The driving sprockets 32 drive the driven sprockets 42 to rotate through the transmission chain 15. The transmission chain 15 drives the V-shaped plate 16 to move. The V-shaped plate 16 drives the heat in the area below the electric heating rod 14 to flow obliquely downward, so that the heat distribution in the area near the flat surface of the PS plate is uniform.

[0043] It also includes a smoke exhaust mechanism 50 and a telescopic drive rod assembly 60 for driving the upper housing 2 to swing. The smoke exhaust mechanism 50 is adapted to suck up smoke from the upper housing 2 and the lower housing 1.

[0044] The smoke extraction mechanism 50 includes a smoke extraction pipe 51, a switching valve 52, and a diversion pipe body 53 with an outer sealed end. The smoke extraction pipe 51 is connected to the upper surface of the upper housing 2. The switching valve 52 is installed on the smoke extraction pipe 51. The open end of the diversion pipe body 53 is connected to the outer circle of the smoke extraction pipe 51 and is located below the switching valve 52. Four connector pipes 54 are connected to the diversion pipe body 53 at intervals. It also includes upper smoke extraction heads 55 connected to both ends of the upper housing 2 and lower smoke extraction heads 56 connected to both ends of the lower housing 1. The upper smoke extraction heads 55 are connected to their corresponding connector pipes 54 via flexible hoses, and the lower smoke extraction heads 56 are connected to their corresponding connector pipes 54 via flexible hoses. The upper end of the smoke extraction pipe 51 is connected to an external smoke extractor via a flexible hose. The smoke extractor draws air from the exhaust pipe 51, the diversion pipe 53, the upper smoke head 55, and the lower smoke head 56, creating a negative pressure state inside the upper smoke head 55 and the lower smoke head 56. The upper smoke head 55 and the lower smoke head 56, located on the upper and lower sides of the inlet hole 11, draw in the smoke flowing out of the inlet hole 11, and the upper smoke head 55 and the lower smoke head 56, located on the upper and lower sides of the outlet hole 12, draw in the smoke flowing out of the outlet hole 12. When timely maintenance and repair of the electric heating rod 14 and the drive roller 13 are required, the switch valve 52 is opened, and the exhaust pipe 51, which is in a negative pressure state, draws in the smoke from the upper box 2 and the lower box 1. The telescopic drive rod assembly 60 is operated to open the upper box 2, reducing the amount of smoke flowing into the working environment.

[0045] The telescopic drive rod assembly 60 includes a cylinder 61, a hinge seat 62, a U-shaped seat 63, and a T-shaped seat 64. The U-shaped seat 63 is connected to the end of the telescopic rod of the cylinder 61, and the T-shaped seat 64 is connected to the upper housing 2. The T-shaped seat 64 extends into the inner cavity of the U-shaped seat 63 and is connected by a pin. The hinge seat 62 includes hinge bodies 621 disposed on both sides of the cylinder 61 and a cylindrical tube 622 fitted onto the outer circle of the cylinder 61. Two rotating shafts 623 are symmetrically connected to the outer circle of the cylindrical tube 622. The outer ends of the rotating shafts 623 pass through the hinge bodies 621 and are rotatably connected to them. The hinge bodies 621 are connected to the lower housing 1. The telescopic rod of the cylinder 61 extends and retracts, thereby driving the upper housing 2 to swing, which improves the convenience of maintenance and repair.

[0046] It also includes a temperature control system 70, which includes a PLC controller 71, a contactor 73, and several spaced temperature sensors 72. The PLC controller 71 is electrically connected to the contactor 73, and the PLC controller 71 is electrically connected to each of the temperature sensors 72. The temperature sensors 72 are mounted on the upper housing 2 and extend into its inner cavity. The contactors 73 are electrically connected to the electric heating rod 14. The temperature sensors 72 monitor the temperature inside the upper housing 2. When the temperature inside the upper housing 2 is lower than the set minimum temperature, the temperature sensor 72 sends a signal to the PLC controller 71, and the PLC controller 71 sends a signal to the contactor 73. The contactor 73 connects the electric heating rod 14 to an external power source for heating. When the temperature inside the upper housing 2 is higher than the set maximum temperature, the temperature sensor 72 sends a signal to the PLC controller 71, and the PLC controller 71 sends a signal to the contactor 73. Through the action of the contactor 73, the electric heating rod 14 is disconnected from the external power source and heating is stopped.

[0047] The implementation principle of this embodiment is as follows: During use, the electric heating rod 14 generates heat after being connected to an external power source. After the temperature inside the upper chamber 2 rises to a certain value, the PS board coated with hardening liquid enters the inner cavity of the upper chamber 2 horizontally through the inlet hole 11. The drive roller 13 drives the PS board to move. The heat inside the upper chamber 2 heats the hardening liquid on the PS board at a constant temperature. At this time, the drive sprocket assembly 30 drives the driven sprocket assembly 40 to rotate through the transmission chain 15. The transmission chain 15 drives the V-shaped plate 16 to move. The V-shaped plate 16 drives the heat in the area below the electric heating rod 14 to flow obliquely downward, so that the heat distribution near the flat surface area of ​​the PS board is uniform. The hardening liquid on the PS board is uniformly heated at a constant temperature for sulfur leveling, which enhances the sulfur leveling effect of the hardening liquid on the PS board and improves the quality of the tempered PS board. After sulfur leveling, the PS board is removed through the board outlet 12 and then cured to form a tempered PS board. During the process of heating and sulfur leveling the hardening liquid, smoke is generated, which will produce a certain odor. The smoke is sucked away by the smoke exhaust mechanism 50 and then treated uniformly to reduce the pollution of the smoke to the working environment. When it is necessary to open the upper box 2 to maintain the electric heating rod 14 and the drive roller 13, the telescopic drive rod assembly 60 is operated to drive the upper box 2 to swing, so that the upper box 2 is separated from the lower box 1, which improves the convenience of maintenance.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A constant temperature sulfur leveling device for the production of tempered PS sheets, characterized in that, include: The upper box (1) has an opening at the top and the lower box (2) has an opening at the bottom. The upper box (2) has an inlet hole (11) and an outlet hole (12) on both sides. One side of the upper box (2) is hinged to one side of the lower box (1). Several drive rollers (13) are rotatably connected at intervals inside the lower box (1). Several electric heating rods (14) are rotatably connected in the inner cavity of the upper box (2). Two drive sprocket assemblies (30) and driven sprocket assemblies (40) are rotatably connected at both ends inside the upper box (2). Two transmission chains (15) located outside the electric heating rods (14) are connected between the drive sprocket assembly (30) and the driven sprocket assembly (40). Several V-shaped plates (16) for scraping the electric heating rods (14) to evenly distribute the heat generated by the electric heating rods (14) are rotatably connected between the transmission chains (15). It also includes a smoke exhaust mechanism (50) and a telescopic drive rod assembly (60) for driving the upper housing (2) to swing, the smoke exhaust mechanism (50) being adapted to draw smoke from the upper housing (2) and the lower housing (1).

2. The constant temperature sulfur leveling equipment for producing tempered PS sheets according to claim 1, characterized in that, The smoke exhaust mechanism (50) includes a smoke exhaust pipe (51), a switch valve (52), and a diversion pipe body (53) with an outer sealed end. The smoke exhaust pipe (51) is connected to the upper surface of the upper housing (2). The switch valve (52) is installed on the smoke exhaust pipe (51). The open end of the diversion pipe body (53) is connected to the outer circle of the smoke exhaust pipe (51) and located below the switch valve (52). Four connector pipes (54) are connected at intervals on the diversion pipe body (53). It also includes an upper smoke head (55) connected to both ends of the upper housing (2) and a lower smoke head (56) connected to both ends of the lower housing (1). The upper smoke head (55) is connected to the corresponding connector pipe (54) through a flexible hose. The lower smoke head (56) is connected to the corresponding connector pipe (54) through a flexible hose. The upper end of the smoke exhaust pipe (51) is connected to an external smoke extractor through a flexible hose.

3. The constant temperature sulfur leveling equipment for producing tempered PS sheets according to claim 1, characterized in that, The telescopic drive rod assembly (60) includes a cylinder (61), a hinge seat (62), a U-shaped seat (63), and a T-shaped seat (64). The U-shaped seat (63) is connected to the end of the telescopic rod of the cylinder (61), and the T-shaped seat (64) is connected to the upper housing (2). The T-shaped seat (64) extends into the inner cavity of the U-shaped seat (63) and is connected by a pin. The hinge seat (62) includes a hinge body (621) disposed on both sides of the cylinder (61) and a cylindrical tube (622) fitted onto the outer circle of the cylinder (61). Two rotating shafts (623) are symmetrically connected to the outer circle of the cylindrical tube (622). The outer ends of the rotating shafts (623) pass through the hinge body (621) and are rotatably connected to it. The hinge body (621) is connected to the lower housing (1).

4. The constant temperature sulfur leveling equipment for producing tempered PS sheets according to claim 1, characterized in that, The active sprocket assembly (30) includes an active shaft (31) and two active sprockets (32) spaced apart at both ends thereon. The two ends of the active shaft (31) pass through the side wall of the upper housing (2) and are rotatably connected. One end of the active sprocket (32) is connected to a servo motor (33).

5. The constant temperature sulfur leveling equipment for producing tempered PS sheets according to claim 4, characterized in that, The driven sprocket assembly (40) includes a driven shaft (41) and two driven sprockets (42) spaced apart at both ends thereon. The two ends of the driven shaft (41) pass through the side wall of the upper housing (2) and are rotatably connected. The driven sprockets (42) are connected to the corresponding driving sprockets (32) by the transmission chain (15).

6. The constant temperature sulfur leveling equipment for producing tempered PS sheets according to claim 1, characterized in that, The top of the outer circle of the drive roller (13) is higher than the upper edge of the lower housing (1), and the bottom of the lower housing (1) is connected with several legs (17) at intervals.

7. The constant temperature sulfur leveling equipment for producing tempered PS sheets according to claim 1, characterized in that, It also includes a temperature control system (70), which includes a PLC controller (71), a contactor (73) and several temperature sensors (72) spaced apart. The PLC controller (71) is electrically connected to the contactor (73), and the PLC controller (71) is electrically connected to the temperature sensors (72) respectively. The temperature sensors (72) are mounted on the upper housing (2) and extend into its inner cavity. The contactors (73) are electrically connected to the electric heating rod (14) respectively.

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