Box body structure of injection molding machine box

Abstract

The invention discloses an injection molding machine box body structure, and relates to the technical field of injection molding machine box equipment, the injection molding machine box body structure comprises a placing box and also comprises a dismounting device, the surface of the placing box is provided with a sealing door, the top of the inner wall of the placing box is fixedly provided with a smoke alarm, and the surface of the placing box is fixedly provided with a placing plate; a placement rod is fixedly installed on the surface of the placement plate, a fire-fighting tank is fixedly installed at the top of the placement box, a fire extinguishing pipe is fixedly installed at the bottom of the fire-fighting tank, the fire-fighting tank communicates with the interior of the placement box through the fire extinguishing pipe, and a sliding plate moves in the direction away from the placement plate to drive a maintenance plate to move; the maintenance plate moves to remove sealing of the maintenance hole, the injection molding machine in the placing box is exposed for maintenance, the box body structure convenient to disassemble enables maintenance personnel to rapidly check and maintain the injection molding machine in the placing box, and the continuity and safety of working of the injection molding machine can be ensured by arranging the mistaken touch prevention device.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machine chassis equipment, in particular to an injection molding machine chassis body structure. Background Art

[0002] The structure of the injection molding chassis usually consists of a main body shell, side panels, heat dissipation vents and other accessories, and smaller injection molding machines are connected using a plastic chassis.

[0003] The patent with patent announcement number CN217454684U relates to an injection molding machine case body structure with low cost and easy assembly and processing, including a lower shell with a first opening on the top and an upper cover covering the first opening of the lower shell and having a second opening on the bottom; the injection molding machine case body structure also includes a lug adjacent to the first opening and vertically arranged on the inner wall surface of the lower shell, and a hook fixed on the inner wall surface of the upper cover and with one end extending out of the inner cavity of the upper cover through the second opening; a through hole is opened on the lug and a limiting notch connected to the through hole is arranged on one side surface of the lug, a longitudinal limiting strip is arranged at a position adjacent to the limiting notch on the inner wall surface of the lower shell, and a guide limiting area is formed between the longitudinal limiting strip and the limiting notch; the end of the hook has a bending portion embedded in the limiting notch and abutting against the lug, and the bending portion is provided with a rotation limiting shaft that penetrates the through hole and rotates with the lower shell.

[0004] In the above patent, by setting a hook that rotates with the lug through a rotating limit shaft, the difficulty of processing and assembling the box structure is reduced, and the elimination of external devices and tools reduces the material cost and assembly cost of the box structure, which is beneficial to reducing the production cost of the injection molding machine case. However, it is difficult to quickly disassemble the box structure and quickly maintain the injection molding machine inside the box. If the box structure cannot be quickly disassembled, maintenance personnel will need more time to dismantle and reinstall the box when they need to inspect or maintain the inside of the box, which increases the downtime of the production line and affects the maintenance efficiency and work quality. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an injection molding machine chassis structure, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an injection molding machine box structure, including a placement box, and also including a disassembly device, wherein a sealed door is provided on the surface of the placement box, a smoke alarm is fixedly installed on the top of the inner wall of the placement box, a placement plate is fixedly installed on the surface of the placement box, a placement rod is fixedly installed on the surface of the placement plate, a fire tank is fixedly installed on the top of the placement box, a fire extinguishing pipe is fixedly installed on the bottom of the fire tank, the fire tank is connected to the inside of the placement box through the fire extinguishing pipe, a solenoid valve is provided between the fire tank and the fire extinguishing pipe, a sensing module is provided inside the smoke alarm, a control module is provided inside the smoke alarm, the control module is electrically connected to the solenoid valve, an injection molding machine is provided inside the placement box, and an inspection hole is opened on the surface of the placement box, wherein the disassembly device The device includes a slide plate, an inspection spring, a fixed rod, a fixed plate, a limit rod, a limit spring, a protection block and an inspection plate. After the limit of the slide plate is released, the slide plate moves in a direction away from the placement plate under the elastic force of the inspection spring. The slide plate moves in a direction away from the placement plate and drives the inspection plate to move. The movement of the inspection plate releases the seal of the inspection hole and exposes the injection molding machine inside the placement box for inspection. The slide plate is slidably installed on the circumferential surface of the placement rod, the inspection spring is arranged between the slide plate and the placement rod, the fixed rod is fixedly installed on the top of the placement box, the fixed plate is fixedly installed on the top of the fixed rod, the limit rod is slidably installed on the circumferential surface of the fixed rod, the limit spring is arranged between the limit rod and the fixed rod, the protection block is slidably installed on the top of the placement box, the inspection plate is fixedly installed at the bottom of the slide plate, and a limit groove is provided at the bottom of the limit rod.

[0007] According to the above technical solution, the slide plate is in contact with the limiting groove, a No. 1 spring is arranged between the protection block and the placement box, the protection block is in contact with the limiting rod, and the inspection plate is in contact with the inspection hole, and the protection block can be driven to reset by the No. 1 spring.

[0008] According to the above technical scheme, it also includes a detection device and a fire prevention device, the detection device includes a detection plate, a detection frame, a detection rod, a conduit, a protection frame, an L-shaped rod, a protective rod and a power-off button, the movement of the detection rod drives the steel wire rope to move, the movement of the steel wire rope drives the protective rod to move in the direction away from the mobile placement box, the movement of the protective rod blocks the bottom of the L-shaped rod, so that when the injection molding machine inside the placement box is inspected, the injection molding machine cannot start the operation, the detection plate is fixedly mounted on the surface of the inspection plate, the detection frame is fixedly mounted on the surface of the placement box, the detection rod slides through the inner and outer walls of the detection frame, the conduit is fixedly mounted on the surface of the detection frame, the protective frame is fixedly mounted on the surface of the detection frame, the L-shaped rod slides through the top of the protection frame, the protective rod is slidably mounted on the inner wall of the protection frame, the power-off button is fixedly mounted on the bottom of the protection frame, and a steel wire rope is arranged between the protective rod and the detection rod.

[0009] According to the above technical solution, the power-off button is electrically connected to the injection molding machine, a No. 2 spring is arranged between the protection frame and the L-shaped rod, and a No. 3 spring is arranged between the detection rod and the detection frame. The No. 2 spring can drive the L-shaped rod to reset.

[0010] According to the above technical solution, a No. 4 spring is arranged between the protective rod and the protection frame, the detection plate is in contact with the detection rod, and the steel wire rope is in contact with the inner wall of the conduit, and the No. 4 spring can drive the protective rod to reset.

[0011] According to the above technical scheme, the fire protection device includes a mounting plate, a sealed tank, an air intake pipe, a circular plate, a flammable plate, an arc panel, a linkage disk and a pressing rod. The power-off button is pressed by the L-shaped rod to cut off the power to the injection molding machine. At the same time, the linkage disk moves downward so that the carbon dioxide inside the sealed tank enters the placement box through the air intake pipe to extinguish the fire. The mounting plate is fixedly mounted on the surface of the placement box, the sealed tank is fixedly penetrated through the top of the mounting plate, the air intake pipe is fixedly mounted on the circumferential surface of the sealed tank, the circular plate is slidably mounted on the inner wall of the sealed tank, the flammable plate is fixedly mounted on the top of the inner wall of the placement box, the arc panel is arranged between the flammable plate and the circular plate, and a No. 5 spring is arranged between the circular plate and the sealed tank. The linkage disk is slidably mounted on the inner wall of the sealed tank, and the pressing rod is fixedly mounted on the bottom of the linkage disk.

[0012] According to the above technical solution, the sealing can is connected to the inside of the placement box through the air intake pipe, the pressing rod contacts the top of the L-shaped rod, the arc panel is elastic, a rubber ring A is arranged between the circular plate and the sealing can, and a rubber ring B is arranged between the linkage disk and the sealing can. The linkage disk moves forward to contact the L-shaped rod and squeeze the L-shaped rod to move downward.

[0013] According to the above technical solution, a No. 6 spring is arranged between the linkage disk and the sealing tank, a linkage hole is opened on the top of the placement box, the arc panel contacts the inner wall of the linkage hole, carbon dioxide is arranged in the sealing tank, and the linkage disk can be driven to reset through the No. 6 spring.

[0014] The present invention provides an injection molding machine box structure, which has the following beneficial effects:

[0015] (1) When the injection molding machine in the placement box needs to be inspected and repaired, the protective block is first manually pulled to move the limit rod. Accidental disassembly of the injection molding machine box structure may cause equipment shutdown, resulting in production interruption and affecting the execution of the production plan. By setting an anti-accidental touch device, the continuity and safety of the injection molding machine can be ensured. At the same time, the slide moves away from the placement plate to drive the inspection plate to move. The inspection plate moves to release the seal of the inspection hole and expose the injection molding machine in the placement box for inspection and repair. The easy-to-disassemble box structure allows maintenance personnel to quickly inspect and maintain the injection molding machine in the placement box, saving time and reducing downtime, thereby improving maintenance efficiency.

[0016] (2) The box structure of the injection molding machine is such that the movement of the detection rod drives the movement of the wire rope, and the movement of the wire rope drives the protective rod to move away from the movable placement box. The movement of the protective rod blocks the bottom of the L-shaped rod, so that when the injection molding machine inside the placement box is inspected and repaired, the injection molding machine cannot be started. During the inspection and repair period, since the injection molding machine cannot be started, personal injury caused by misoperation or accidental triggering can be effectively avoided. This safety measure is crucial to the safety of maintenance personnel and operators, ensuring that maintenance personnel will not be injured when performing maintenance and inspection work.

[0017] (3) The structure of the injection molding machine box. When a fire occurs in the storage box, the high temperature inside the storage box will burn the flammable plate, causing the L-shaped rod to move downward to contact and press the power-off button. The power-off button is pressed by the L-shaped rod to cut off the power to the injection molding machine. During a fire, if the injection molding machine is still running, it may cause secondary accidents such as electric arcs, electric shocks or equipment failures, aggravating the spread of fire and personal injury. Cutting off the power to the injection molding machine can effectively prevent the occurrence of these secondary accidents and ensure the safety of personnel. At the same time, the linkage plate moves downward to allow the carbon dioxide in the sealed tank to enter the storage box through the air intake pipe to extinguish the fire. The carbon dioxide will not leave any residue after extinguishing the fire, so there is no need to clean up after the fire is extinguished, which can save time and labor costs and reduce recovery work after fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the position structure of the fire fighting tank and the fire extinguishing pipe of the present invention;

[0020] Figure 3 This is a schematic diagram of the position structure of the mounting plate and the sealing tank of the present invention;

[0021] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement of part A;

[0022] Figure 5 For the present invention Figure 3 A schematic diagram of the structure of part B in the middle is enlarged;

[0023] Figure 6 For the present invention Figure 3 The enlarged schematic diagram of the structure of part C in the middle;

[0024] Figure 7 It is a schematic diagram of the structure of the flammable plate and the arc panel of the present invention.

[0025] In the figure: 1. placement box; 2. sealing door; 3. smoke alarm; 4. placement plate; 5. placement rod; 6. slide plate; 7. inspection spring; 8. fixing rod; 9. fixing plate; 10. limit rod; 11. limit spring; 12. protection block; 13. inspection plate; 14. fire tank; 15. fire extinguishing pipe; 161. detection plate; 162. detection frame; 163. detection rod; 164. conduit; 165. protection frame; 166. L-shaped rod; 167. protection rod; 168. power off button; 171. mounting plate; 172. sealing tank; 173. air intake pipe; 174. round plate; 175. flammable plate; 176. arc panel; 177. linkage disk; 178. pressing rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 7, one embodiment of the present invention is: an injection molding machine box body structure, including a placement box 1, and also including a disassembly device, wherein a sealed door 2 is provided on the surface of the placement box 1, a smoke alarm 3 is fixedly installed on the top of the inner wall of the placement box 1, a placement plate 4 is fixedly installed on the surface of the placement box 1, a placement rod 5 is fixedly installed on the surface of the placement plate 4, a fire tank 14 is fixedly installed on the top of the placement box 1, a fire extinguishing pipe 15 is fixedly installed on the bottom of the fire tank 14, the fire tank 14 is connected with the inside of the placement box 1 through the fire extinguishing pipe 15, a solenoid valve is provided between the fire tank 14 and the fire extinguishing pipe 15, a sensing module is provided inside the smoke alarm 3, a control module is provided inside the smoke alarm 3, the control module is electrically connected to the solenoid valve, an injection molding machine is provided inside the placement box 1, and an inspection hole is opened on the surface of the placement box 1, wherein the disassembly device includes a slide plate 6, an inspection spring 7, Fixed rod 8, fixed plate 9, limit rod 10, limit spring 11, protection block 12 and inspection plate 13, slide plate 6 is slidably installed on the circumferential surface of placement rod 5, inspection spring 7 is arranged between slide plate 6 and placement rod 5, fixed rod 8 is fixedly installed on the top of placement box 1, fixed plate 9 is fixedly installed on the top of fixed rod 8, limit rod 10 is slidably installed on the circumferential surface of fixed rod 8, limit spring 11 is arranged between limit rod 10 and fixed rod 8, protection block 12 is slidably installed on the top of placement box 1, inspection plate 13 is fixedly installed on the bottom of slide plate 6, limit rod 10 has a limit groove at the bottom, the box structure that is easy to disassemble allows maintenance personnel to quickly inspect and maintain the injection molding machine inside the placement box, saving time and reducing downtime, improving maintenance efficiency, and by setting an anti-accidental touch device, the continuity and safety of production can be ensured.

[0028] The slide plate 6 contacts with the limit groove, a spring No. 1 is arranged between the protection block 12 and the placement box 1, the protection block 12 contacts with the limit rod 10, and the inspection plate 13 contacts with the inspection hole, and the protection block 12 can be driven to reset by the spring No. 1.

[0029] When this embodiment is working: when it is necessary to inspect and repair the injection molding machine inside the placement box 1, first manually pull the protection block 12 to move away from the fixed rod 8. The protection block 12 moves in the direction away from the fixed rod 8 to break away from the contact with the limit rod 10 and release the limit on the limit rod 10. After the limit of the limit rod 10 is released, manually pull the limit rod 10 to move upward. The limit rod 10 moves upward to break away from the contact with the slide plate 6 and release the limit on the slide plate 6. After the limit of the slide plate 6 is released, the slide plate 6 moves in the direction away from the placement plate 4 under the action of the elastic force of the inspection spring 7. The slide plate 6 moves in the direction away from the placement plate 4, driving the inspection plate 13 to move. The inspection plate 13 moves to release the seal of the inspection hole to expose the injection molding machine inside the placement box 1 for inspection and repair.

[0030] See also Figure 1-Figure 7On the basis of the above embodiment, another embodiment of the present invention further includes a detection device and a fire prevention device, the detection device includes a detection plate 161, a detection frame 162, a detection rod 163, a conduit 164, a protection frame 165, an L-shaped rod 166, a protective rod 167 and a power-off button 168, the detection plate 161 is fixedly mounted on the surface of the inspection plate 13, the detection frame 162 is fixedly mounted on the surface of the placement box 1, the detection rod 163 slides through the inner and outer walls of the detection frame 162, the conduit 164 is fixedly mounted on the surface of the detection frame 162, the protection frame 165 is fixedly mounted on the surface of the detection frame 162, the L-shaped rod 166 slides through the top of the protection frame 165, the protective rod 167 is slidably mounted on the inner wall of the protection frame 165, the power-off button 168 is fixedly mounted on the bottom of the protection frame 165, and a steel wire rope is arranged between the protective rod 167 and the detection rod 163. During the overhaul, since the injection molding machine cannot be started, personal injuries caused by misoperation or accidental triggering can be effectively avoided, ensuring that the maintenance personnel will not be injured when performing maintenance and overhaul work.

[0031] The power-off button 168 is electrically connected to the injection molding machine. A second spring is provided between the protection frame 165 and the L-shaped rod 166. A third spring is provided between the detection rod 163 and the detection frame 162. The second spring can drive the L-shaped rod 166 to reset.

[0032] A No. 4 spring is arranged between the protection rod 167 and the protection frame 165 , and the No. 4 spring can drive the protection rod 167 to reset, the detection plate 161 contacts the detection rod 163 , and the wire rope contacts the inner wall of the conduit 164 .

[0033] The fireproof device includes a mounting plate 171, a sealing tank 172, an air inlet pipe 173, a circular plate 174, a flammable plate 175, an arc panel 176, a linkage disk 177 and a pressing rod 178. The mounting plate 171 is fixedly mounted on the surface of the placement box 1, the sealing tank 172 is fixedly penetrated through the top of the mounting plate 171, the air inlet pipe 173 is fixedly mounted on the circumferential surface of the sealing tank 172, the circular plate 174 is slidably mounted on the inner wall of the sealing tank 172, the flammable plate 175 is fixedly mounted on the top of the inner wall of the placement box 1, and the arc panel 176 is arranged on the flammable plate 175. A No. 5 spring is arranged between the plate 175 and the circular plate 174, and between the circular plate 174 and the sealing tank 172. The linkage disk 177 is slidably installed on the inner wall of the sealing tank 172, and the pressing rod 178 is fixedly installed at the bottom of the linkage disk 177. In a fire, if the injection molding machine is still running, it will aggravate the spread of fire and personal injury. Cutting off the power supply to the injection molding machine can effectively prevent the occurrence of these secondary accidents. In addition, carbon dioxide will not leave any residue after extinguishing the fire, so there is no need to clean up after the fire is extinguished, reducing the recovery work after the fire is extinguished.

[0034] The sealing tank 172 is connected to the interior of the placement box 1 through the air inlet pipe 173, the pressing rod 178 contacts the top of the L-shaped rod 166, the arc panel 176 is elastic, a rubber ring A is arranged between the circular plate 174 and the sealing tank 172, and a rubber ring B is arranged between the linkage disk 177 and the sealing tank 172. The linkage disk 177 moves downward to contact the L-shaped rod 166 and squeeze the L-shaped rod 166 to move downward.

[0035] A No. 6 spring is arranged between the linkage disk 177 and the sealing tank 172, and the No. 6 spring can drive the linkage disk 177 to reset. A linkage hole is opened on the top of the placement box 1, and the arc panel 176 contacts the inner wall of the linkage hole. Carbon dioxide is arranged in the sealing tank 172.

[0036] When this embodiment is working: after the limit of the limit rod 10 is released, the limit rod 10 is manually pulled upward, and the limit rod 10 moves upward to break away from the contact with the slide plate 6 and release the limit on the slide plate 6. After the limit of the slide plate 6 is released, the slide plate 6 moves in the direction away from the placement plate 4 under the elastic force of the inspection spring 7, and the slide plate 6 moves in the direction away from the placement plate 4 to drive the inspection plate 13 to move, and the inspection plate 13 moves to drive the detection plate 161 to move, and the detection plate 161 moves to break away from the contact with the detection rod 163 and release the limit on the detection rod 163. After the limit of the detection rod 163 is released, the detection rod 163 moves in the direction close to the inspection plate 13 under the elastic force of the No. 3 spring, and the detection rod 163 moves to drive the wire rope to move, and the wire rope moves to drive the protective rod 167 to move in the direction away from the movable placement box 1. The protective rod 167 moves to block the bottom of the L-shaped rod 166, so that when the injection molding machine inside the placement box 1 is overhauled, the injection molding machine cannot start the operation.

[0037] When a fire occurs in the storage box 1, the sensing module of the smoke alarm 3 will drive the control module to open the solenoid valve, and the opening of the solenoid valve will release the seal of the fire tank 14. After the seal of the fire tank 14 is released, the carbon dioxide inside the fire tank 14 enters the storage box 1 through the fire extinguishing pipe 15 to extinguish the fire. If the fire is large and causes the smoke alarm 3 to fail, the high temperature inside the storage box 1 will burn the flammable plate 175. After the flammable plate 175 is burned, the limit on the arc panel 176 is released. After the limit of the arc panel 176 is released, the circular plate 174 moves downward under the elastic force of the No. 5 spring, and the circular plate 174 moves downward to the sealed tank 172 The carbon dioxide inside is squeezed, and the carbon dioxide squeezed by the circular plate 174 squeezes the linkage disk 177. The linkage disk 177 moves downward under the pressure of the carbon dioxide inside the sealed tank 172, and the linkage disk 177 moves downward and contacts with the L-shaped rod 166 and squeezes the L-shaped rod 166 to move downward. The L-shaped rod 166 moves downward and contacts with the power-off button 168 and presses the power-off button 168. The power-off button 168 is pressed by the L-shaped rod 166 to cut off the power to the injection molding machine. At the same time, the linkage disk 177 moves downward so that the carbon dioxide inside the sealed tank 172 enters the placement box 1 through the air inlet pipe 173 to extinguish the fire.

[0038] 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 injection molding machine box structure, comprising a placement box (1), characterized in that: It also includes disassembly equipment, detection equipment and fire protection equipment; Wherein, the surface of the placement box (1) is provided with a sealed door (2), the top of the inner wall of the placement box (1) is fixedly installed with a smoke alarm (3), the surface of the placement box (1) is fixedly installed with a placement plate (4), the surface of the placement plate (4) is fixedly installed with a placement rod (5), the top of the placement box (1) is fixedly installed with a fire tank (14), the bottom of the fire tank (14) is fixedly installed with a fire extinguishing pipe (15), the fire tank (14) is connected with the inside of the placement box (1) through the fire extinguishing pipe (15), a solenoid valve is provided between the fire tank (14) and the fire extinguishing pipe (15), a sensing module is provided inside the smoke alarm (3), a control module is provided inside the smoke alarm (3), the control module is electrically connected to the solenoid valve, an injection molding machine is provided inside the placement box (1), and an inspection hole is opened on the surface of the placement box (1); The disassembly device comprises a slide plate (6), an inspection spring (7), a fixed rod (8), a fixed plate (9), a limit rod (10), a limit spring (11), a protection block (12) and an inspection plate (13); the slide plate (6) is slidably mounted on the circumferential surface of the placement rod (5); the inspection spring (7) is arranged between the slide plate (6) and the placement rod (5); the fixed rod (8) is fixedly mounted on the top of the placement box (1); the fixed plate (9) is fixedly mounted on the top of the fixed rod (8); the limit rod (10) is slidably mounted on the circumferential surface of the fixed rod (8); the limit spring (11) is arranged between the limit rod (10) and the fixed rod (8); the protection block (12) is slidably mounted on the top of the placement box (1); the inspection plate (13) is fixedly mounted on the bottom of the slide plate (6); and a limit groove is provided at the bottom of the limit rod (10).

2. The box structure of an injection molding machine according to claim 1, characterized in that: The slide plate (6) contacts the limiting groove, a No. 1 spring is arranged between the protection block (12) and the placement box (1), the protection block (12) contacts the limiting rod (10), and the inspection plate (13) contacts the inspection hole.

3. The box structure of an injection molding machine according to claim 2, characterized in that: The detection device comprises a detection plate (161), a detection frame (162), a detection rod (163), a guide tube (164), a protection frame (165), an L-shaped rod (166), a protection rod (167) and a power-off button (168); the detection plate (161) is fixedly mounted on the surface of the inspection plate (13); the detection frame (162) is fixedly mounted on the surface of the placement box (1); the detection rod (163) slides through the inner and outer walls of the detection frame (162); the guide tube (164) is fixedly mounted on the surface of the detection frame (162); the protection frame (165) is fixedly mounted on the surface of the detection frame (162); the L-shaped rod (166) slides through the top of the protection frame (165); the protection rod (167) is slidably mounted on the inner wall of the protection frame (165); the power-off button (168) is fixedly mounted on the bottom of the protection frame (165); and a steel wire rope is arranged between the protection rod (167) and the detection rod (163).

4. The box structure of an injection molding machine according to claim 3, characterized in that: The power-off button (168) is electrically connected to the injection molding machine, a No. 2 spring is arranged between the protection frame (165) and the L-shaped rod (166), and a No. 3 spring is arranged between the detection rod (163) and the detection frame (162).

5. The box structure of an injection molding machine according to claim 4, characterized in that: A No. 4 spring is arranged between the protection rod (167) and the protection frame (165), the detection plate (161) is in contact with the detection rod (163), and the steel wire rope is in contact with the inner wall of the conduit (164).

6. The box structure of an injection molding machine according to claim 5, characterized in that: The fire prevention device comprises a mounting plate (171), a sealing tank (172), an air intake pipe (173), a circular plate (174), a flammable plate (175), a curved panel (176), a linkage disk (177) and a pressing rod (178); the mounting plate (171) is fixedly mounted on the surface of the placement box (1); the sealing tank (172) is fixedly passed through the top of the mounting plate (171); the air intake pipe (173) is fixedly mounted on the circumferential surface of the sealing tank (172); the circular plate (174) is slidably mounted on the inner wall of the sealed tank (172), the flammable plate (175) is fixedly mounted on the top of the inner wall of the placement box (1), the arc panel (176) is arranged between the flammable plate (175) and the circular plate (174), a No. 5 spring is arranged between the circular plate (174) and the sealed tank (172), the linkage disk (177) is slidably mounted on the inner wall of the sealed tank (172), and the pressing rod (178) is fixedly mounted on the bottom of the linkage disk (177).

7. The box structure of an injection molding machine according to claim 6, characterized in that: The sealing tank (172) is connected to the interior of the storage box (1) through an air inlet pipe (173), the pressing rod (178) contacts the top of the L-shaped rod (166), the arc panel (176) is elastic, a rubber ring A is provided between the circular plate (174) and the sealing tank (172), and a rubber ring B is provided between the linkage disk (177) and the sealing tank (172).

8. The box structure of an injection molding machine according to claim 7, characterized in that: A No. 6 spring is arranged between the linkage disk (177) and the sealing tank (172), a linkage hole is opened on the top of the placement box (1), the arc panel (176) contacts the inner wall of the linkage hole, and carbon dioxide is arranged in the sealing tank (172).

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