Blow molding machine for producing lampshade

Abstract

The invention belongs to the technical field of lampshade production equipment, and discloses a blow molding machine for producing lampshades, which comprises a blow molding machine body, the sliding mechanism is slidably connected to the bottom of one side of the blow molding machine body; and the blowing molds are arranged on the two sides of the top of the sliding mechanism. According to the technical scheme, the ventilation mechanism, the triggering assembly and the sensing assembly are arranged, the whole ventilation mechanism is driven to ventilate, at the moment, redundant blow-molded parts on the top of the ventilation mechanism enter the round hole, and therefore the triggering assembly can be extruded and driven, and the triggering assembly drives the sensing assembly to send a signal to a control end; a driving motor is driven to drive a cutting round block to rotate, so that the cutting round block cuts off the redundant part in a round hole in one side and brings the redundant part to the other side, the redundant part in the middle of a ventilation mechanism is cut off, finally, the redundant part falls into a storage box to be stored, and finally, the purpose of automatically cutting off the redundant part is achieved; and cost increase caused by independent device cutting is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of lampshade production equipment, in particular to a blow molding machine for producing lampshades. Background Art

[0002] The blow molding machine for producing lampshades is a blow molding process, the purpose of which is to heat and soften the plastic raw materials and blow them into lampshades with specific shapes and sizes. This equipment has the advantages of high efficiency, energy saving, and environmental protection. It is widely used in the lighting manufacturing industry. The blow molding machine for producing lampshades is mainly composed of the following parts:

[0003] 1. Raw material supply system: responsible for feeding plastic raw materials into the equipment to ensure the continuity of the production process;

[0004] 2. Heating system: heat the plastic raw materials to a softened state for easy blow molding;

[0005] 3. Mould system: Design the mould according to the shape and size of the lampshade to ensure that the lampshade meets the requirements after molding;

[0006] 4. Blowing system: High-pressure air is sent into the mold through the blowing device to make the softened plastic material expand and fit the inner wall of the mold;

[0007] 5. Cooling system: Cool the molded lampshade to solidify it and keep its shape;

[0008] 6. Demolding system: remove the molded lampshade from the mold for subsequent processing or packaging;

[0009] In the existing blow molding machines, the plastic raw materials inside the mold are in a sealed state and the internal air cannot be discharged, so corresponding exhaust holes are often required to assist in exhaust. However, due to the plastic blow molding, part of the plastic raw materials will be blow-molded and expanded in the exhaust holes, resulting in excess parts of the blow-molded lampshade that need to be cut off separately, which increases the cost. In addition, the exhaust holes will be clogged with external dust and impurities under long-term use, so they need to be improved. Summary of the invention

[0010] In order to solve the problems raised in the above background technology, the present invention provides a blow molding machine for producing lampshades, which has the advantage of being able to automatically cut off the excess blow-molded parts.

[0011] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a blow molding machine for producing lampshades, comprising a blow molding machine body; a sliding mechanism, slidably connected to the bottom of one side of the blow molding machine body; a blow molding mold, arranged on both sides of the top of the sliding mechanism; a ventilation groove, opened in the middle of the bottom end of the blow molding mold; a ventilation mechanism, arranged inside the ventilation groove; a cutting mechanism, comprising a driving motor, the driving motor is fixedly installed inside the bottom end of the blow molding mold and located on one side of the top of the ventilation mechanism, a cutting round block is fixedly sleeved on the top of the driving motor, a trigger assembly is arranged on one side of the top of the ventilation mechanism, a sensor assembly is arranged inside the blow molding mold and located below one side of the trigger assembly, and round holes are opened on both sides of the inside of the cutting round block.

[0012] Preferably, a spiral injection molding mechanism is arranged on the top of the blow molding machine body, and a blow molding mechanism located directly above the blow molding mold is arranged on the top of one side of the blow molding machine body.

[0013] Preferably, the ventilation mechanism includes a ventilation valve column, a connecting spring, a top pipe, a hydraulic component and a shielding component.

[0014] The ventilation valve column is movably installed on the top of the ventilation groove, and the ventilation valve column is elastically connected to the inner wall of the ventilation groove through a connecting spring. The top pipe is arranged inside the ventilation groove and below the ventilation valve column. The hydraulic component is arranged inside one side of the ventilation valve column, and the shielding component is arranged on the top of the ventilation valve column.

[0015] Preferably, the hydraulic assembly comprises a hydraulic cylinder, a power piston rod and a first power spring;

[0016] The hydraulic cylinder is arranged on one side of the top of the ventilation valve column, the power piston rod is movably installed in the inner cavity of the hydraulic cylinder, and the power piston rod is elastically connected to the inner wall of the hydraulic cylinder through a first power spring.

[0017] Preferably, the shielding assembly comprises a shielding plate, a mounting shaft and a hydraulic cylinder;

[0018] The baffle is movably installed in the middle of the top end of the ventilation valve column, the installation shaft is fixedly installed in the middle of the bottom end of the baffle, the hydraulic round box is fixedly installed inside the ventilation valve column and located on the bottom end surface of the installation shaft, and the hydraulic round box is connected with the hydraulic cylinder through an oil channel.

[0019] Preferably, the trigger assembly includes a trigger cylindrical block, a ramp block, a pusher and a second power spring;

[0020] The trigger cylindrical block is movably mounted on one side of the top of the ventilation valve column, the inclined block is arranged at the bottom of one side of the trigger cylindrical block, the pushing member is movably mounted inside the ventilation valve column and is located below one side of the trigger cylindrical block, and the pushing member is elastically connected to the inner wall of the ventilation valve column through a second power spring.

[0021] Preferably, the contact surfaces of the inclined surface block and the pushing member are both designed as inclined surfaces.

[0022] Preferably, the sensing component includes a pressure transmission block and a pressure sensor;

[0023] The pressure transmission block is arranged inside the blow molding mold and is located below the inner side of the trigger assembly. The pressure sensor is arranged inside the blow molding mold and is located inside the pressure sensor.

[0024] Preferably, the inner wall of the blow molding mold is provided with a sealing assembly located at one side of the bottom of the blow molding machine body, and the sealing assembly includes a fixing frame, a sealing baffle, a limiting rod and a connecting arm;

[0025] The fixing frame is fixedly installed on one side of the bottom of the ventilation valve column, the sealing baffle is movably installed on the bottom of the blow molding mold and is located directly below the ventilation groove, the limiting rod is arranged inside the blow molding mold and is slidably connected to the outer end of the sealing baffle, and the connecting arm is hinged between the bottom end of the fixing frame and one side of the bottom end of the sealing baffle.

[0026] Preferably, a storage box is provided at the bottom of the blow mould.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The above technical solution is achieved by setting up a ventilation mechanism, a trigger component and a sensor component, and the ventilation mechanism is driven for ventilation as a whole. At this time, the excess blown part on the top of the ventilation mechanism will enter the circular hole, thereby squeezing the trigger component, so that the trigger component drives the sensor component to send a signal to the control end, and the driving motor drives the cutting block to rotate, so that the cutting block cuts off the excess part inside the circular hole on one side and brings it to the other side, and cuts off the excess part in the middle of the ventilation mechanism, and finally the excess part falls into the storage box for storage, thereby achieving the purpose of autonomous cutting of the excess part and avoiding the need for a separate device to cut off and increase costs.

[0029] The present invention provides a top pipe and a hydraulic component. When the vent valve column is pushed downward as a whole by the gas to be discharged from the inside of the blow molding mold, the hydraulic component on the side of the inner cavity at the top of the vent valve column can be pushed by the top of the top pipe, so that the hydraulic component drives the shielding component to release the shielding seal on the top of the vent valve column. Then, the gas inside the blow molding mold can be smoothly discharged downward through the vent valve column, the top pipe and the vent groove, thereby successfully achieving full discharge of the gas.

[0030] The present invention provides a sealing baffle and a connecting arm. When the ventilation valve column moves downward as a whole, the fixing frame will move downward as a whole synchronously, so that the connecting arm is deflected to push the sealing baffle to extend as a whole to the surface of the limit rod and slide to one side, thereby releasing the shielding and sealing of the bottom of the ventilation groove. When the sealing baffle is reset to the other side, the bottom of the ventilation groove can be shielded and sealed to prevent external dust and impurities from entering and causing blockage when idle. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the side cross-sectional structure of the blow molding mold of the present invention;

[0033] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a blow molding mold of the present invention;

[0034] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0035] Figure 5 for Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0036] Figure 6 for Figure 3 A schematic diagram of the local enlarged structure at C in the middle;

[0037] Figure 7 It is a schematic diagram of the partial structure of the shielding component of the present invention;

[0038] Figure 8 It is a structural schematic diagram of the limiting rod of the present invention.

[0039] In the figure: 1. Blow molding machine body; 2. Screw injection molding mechanism; 3. Blow molding mechanism; 4. Sliding mechanism; 5. Blow molding mold; 6. Ventilation mechanism; 601. Ventilation valve column; 602. Connecting spring; 603. Push pipe; 604. Hydraulic assembly; 6041. Hydraulic cylinder; 6042. Power piston rod; 6043. First power spring; 605. Shielding assembly; 6051. Shielding plate; 6052. Mounting shaft; 6053. Hydraulic round box; 6054. Connecting groove; 7. Oil channel ;8. Cutting mechanism;801. Driving motor;802. Cutting round block;803. Triggering assembly;8031. Triggering cylindrical block;8032. Inclined block;8033. Pushing member;8034. Second power spring;804. Sensing assembly;8041. Pressure transmission block;8042. Pressure sensor;805. Round hole;9. Sealing assembly;901. Fixing frame;902. Sealing baffle;903. Limiting rod;904. Connecting arm;10. Storage box;11. Ventilation groove. DETAILED DESCRIPTION

[0040] 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.

[0041] like Figures 1 to 8 As shown, the present invention provides a blow molding machine for producing lampshades, including a blow molding machine body 1; a sliding mechanism 4, slidably connected to the bottom of one side of the blow molding machine body 1; a blow molding mold 5, arranged on both sides of the top of the sliding mechanism 4; a ventilation groove 11, opened in the middle of the bottom end of the blow molding mold 5; a ventilation mechanism 6, arranged inside the ventilation groove 11; a cutting mechanism 8, including a driving motor 801, the driving motor 801 is fixedly installed inside the bottom end of the blow molding mold 5 and located on one side of the top of the ventilation mechanism 6, the top of the driving motor 801 is fixedly sleeved with a cutting round block 802, a trigger component 803 is arranged on one side of the top of the ventilation mechanism 6, a sensor component 804 located below one side of the trigger component 803 is arranged inside the blow molding mold 5, and round holes 805 are opened on both sides of the inside of the cutting round block 802.

[0042] When excess plastic material on the top of the ventilation mechanism 6 accumulates inside one side of the circular hole 805, the trigger component 803 can be pushed to drive the sensor component 804, so that the sensor component 804 senses the pressure and sends a signal to control the drive motor 801 to drive the cutting circular block 802 to rotate as a whole.

[0043] like Figure 2 As shown, a spiral injection molding mechanism 2 is arranged on the top of the blow molding machine body 1 , and a blow molding mechanism 3 located directly above the blow molding mold 5 is arranged on the top of one side of the blow molding machine body 1 .

[0044] The above solution is adopted: by providing a spiral injection molding mechanism 2, when the sliding mechanism 4 drives the blow molding mold 5 to move to just below one end of the spiral injection molding mechanism 2, the spiral injection molding mechanism 2 can be started to heat the internal plastic raw material and inject it into the blow molding mold 5.

[0045] like Figure 3 and Figure 5 As shown, the ventilation mechanism 6 includes a ventilation valve column 601, a connecting spring 602, a top pipe 603, a hydraulic component 604 and a shielding component 605;

[0046] The ventilation valve column 601 is movably installed on the top of the ventilation groove 11, and the ventilation valve column 601 is elastically connected to the inner wall of the ventilation groove 11 through a connecting spring 602. The top pipe 603 is arranged inside the ventilation groove 11 and below the ventilation valve column 601. The hydraulic component 604 is arranged inside one side of the ventilation valve column 601, and the shielding component 605 is arranged on the top of the ventilation valve column 601.

[0047] The above solution is adopted: by providing a connecting spring 602, when the top of the vent valve column 601 is pushed downward by air pressure, the connecting spring 602 can be compressed at the same time, and when the elastic force of the connecting spring 602 is released, the vent valve column 601 can be pushed to reset upward as a whole.

[0048] like Figure 5 As shown, the hydraulic assembly 604 includes a hydraulic cylinder 6041, a power piston rod 6042 and a first power spring 6043;

[0049] The hydraulic cylinder 6041 is arranged on one side of the top of the ventilation valve column 601 , and the power piston rod 6042 is movably installed in the inner cavity of the hydraulic cylinder 6041 . The power piston rod 6042 is elastically connected to the inner wall of the hydraulic cylinder 6041 through the first power spring 6043 .

[0050] The above scheme is adopted: by providing a power piston rod 6042, when the ventilation valve column 601 moves downward as a whole, the top tube 603 will squeeze and push the inclined surface on one side of the power piston rod 6042, so that the power piston rod 6042 will retract into the interior of the hydraulic cylinder 6041, so as to push the hydraulic oil in the inner cavity of the hydraulic cylinder 6041 into the shielding assembly 605.

[0051] like Figure 5 As shown, the shielding assembly 605 includes a shielding plate 6051, a mounting shaft 6052 and a hydraulic cylinder 6053;

[0052] The baffle plate 6051 is movably installed in the middle of the top of the ventilation valve column 601, the installation shaft 6052 is fixedly installed in the middle of the bottom of the baffle plate 6051, the hydraulic round box 6053 is fixedly installed inside the ventilation valve column 601 and is located on the bottom surface of the installation shaft 6052, and the hydraulic round box 6053 is connected to the hydraulic cylinder 6041 through the oil channel 7.

[0053] The above solution is adopted: by providing an oil passage channel 7, when the hydraulic oil in the inner cavity of the hydraulic cylinder 6041 is pushed out, it will enter the interior of the hydraulic round box 6053 along the oil passage channel 7, thereby pushing the installation shaft 6052 and the baffle plate 6051 to rotate.

[0054] like Figure 4 As shown, the trigger assembly 803 includes a trigger cylindrical block 8031, a ramp block 8032, a pusher 8033 and a second power spring 8034;

[0055] The trigger cylindrical block 8031 ​​is movably installed on one side of the top of the ventilation valve column 601, the inclined block 8032 is arranged at the bottom of one side of the trigger cylindrical block 8031, the pushing member 8033 is movably installed inside the ventilation valve column 601, and is located below one side of the trigger cylindrical block 8031, and the pushing member 8033 is elastically connected to the inner wall of the ventilation valve column 601 through the second power spring 8034.

[0056] By adopting the above solution, the second power spring 8034 is provided, and when the elastic force of the second power spring 8034 is released, the pushing member 8033 can be pushed to move to the other side as a whole to reset.

[0057] like Figure 4 As shown, the contact surfaces of the inclined block 8032 and the pushing member 8033 are both designed with inclined surfaces.

[0058] With the above solution, through the inclined surface design of the inclined surface block 8032 and the pusher 8033 , when the inclined surface block 8032 moves downward, the pusher 8033 is squeezed and pushed to move to one side as a whole.

[0059] like Figure 4 As shown, the sensing assembly 804 includes a pressure transmission block 8041 and a pressure sensor 8042;

[0060] The pressure transmission block 8041 is disposed inside the blow mold 5 and is located below the inner side of the trigger assembly 803 . The pressure sensor 8042 is disposed inside the blow mold 5 and is located inside the pressure sensor 8042 .

[0061] The above scheme is adopted: by providing a pressure sensor 8042, when the pushing member 8033 is aligned with the pressure transmission block 8041, and the pushing member 8033 pushes the pressure transmission block 8041 to move to one side, one end of the pressure transmission block 8041 can be brought into contact with the pressure sensor 8042, so that the pressure sensor 8042 senses the pressure, thereby sending a signal to the control end, thereby controlling the operation of the drive motor 801 to drive the cutting block 802 to rotate.

[0062] like Figure 6 and Figure 8 As shown, the inner wall of the blow molding mold 5 is provided with a sealing assembly 9 located at one side of the bottom of the blow molding machine body 1, and the sealing assembly 9 includes a fixing frame 901, a sealing baffle 902, a limiting rod 903 and a connecting arm 904;

[0063] The fixing frame 901 is fixedly installed on one side of the bottom of the ventilation valve column 601, the sealing baffle 902 is movably installed on the bottom of the blow mold 5 and is located directly below the ventilation groove 11, the limiting rod 903 is arranged inside the blow mold 5 and is slidably connected to the outer end of the sealing baffle 902, and the connecting arm 904 is hinged between the bottom end of the fixing frame 901 and one side of the bottom end of the sealing baffle 902.

[0064] By adopting the above solution, the connecting arm 904 is provided, and when the fixing frame 901 moves downward as a whole, the connecting arm 904 can be deflected to push the sealing baffle 902 to move to one side as a whole, thereby releasing the shielding seal on the bottom of the ventilation groove 11.

[0065] like Figure 3 As shown, a storage box 10 is provided at the bottom of the blow mould 5 .

[0066] By adopting the above solution, through the design of the storage box 10, the excess plastic raw material inside the vent valve column 601 and the circular hole 805 on the other side can be collected.

[0067] The working principle and use process of the present invention:

[0068] First, the operator can inject the plastic raw material into the blow mold 5 through the spiral injection molding mechanism 2, and then control the sliding mechanism 4 to drive the blow mold 5 to move as a whole to just below the blow molding mechanism 3. At this time, the blow molding mechanism 3 can be started to blow the plastic raw material injected into the blow mold 5. Then, the gas inside the blow mold 5 will be squeezed to push the vent valve column 601 to move downward as a whole, until the top pipe 603 squeezes and pushes the inclined surface of one side of the power piston rod 6042, so that the dynamic piston rod 6042 can be pushed downward. The force piston rod 6042 is retracted into the inner cavity of the hydraulic cylinder 6041, so that the hydraulic oil in the inner cavity of the hydraulic cylinder 6041 is pushed through the oil passage 7 into the interior of the hydraulic round box 6053, so that the hydraulic pressure in the inner cavity of the hydraulic round box 6053 becomes larger and drives the mounting shaft 6052 and the baffle plate 6051 to rotate as a whole until the connecting groove 6054 is opposite to the inner cavity of the ventilation valve column 601. At this time, the gas inside the blow mold 5 will smoothly pass through the ventilation valve column 601, the top pipe 603 and the ventilation groove 11 to move downward.

[0069] Afterwards, as the vent valve column 601 moves downward, it will push the fixing frame 901 to move downward as a whole, so that the connecting arm 904 will deflect and push the sealing baffle 902 to move to one side as a whole, until the other side of the sealing baffle 902 completely releases the blocking seal on the bottom of the vent groove 11. At this time, the gas inside the blow mold 5 can be smoothly discharged downward in one direction through the vent groove 11.

[0070] Finally, when the gas inside the blow mold 5 is exhausted, and part of the blown plastic raw material will be accumulated on the top of the vent valve column 601 and located inside the circular hole 805, it will squeeze and push the trigger cylindrical block 8031 ​​downward as a whole. At the same time, when the vent valve column 601 moves downward to the bottom, one end of the second power spring 8034 will be aligned with the pressure transmission block 8041. Then, when the inclined surface block 8032 is driven downward by the trigger cylindrical block 8031, the inclined surface of one side of the inclined surface block 8032 will slide along the inclined surface of one side of the pushing member 8033, thereby squeezing and pushing the pushing member 8033 to move to one side as a whole, and then one end of the pushing member 8033 will be inserted into the blow mold 5 and push the pressure transmission block 8041 moves synchronously, and then the vent valve column 601 can be fixed as a whole to prevent the elastic force of the connecting spring 602 from restoring and pushing the vent valve column 601 to reset when the gas is no longer discharged. When the pressure transmission block 8041 is pushed to contact one side of the pressure sensor 8042, the pressure sensor 8042 can smoothly sense the pressure, and finally transmit the signal to the control end, so that the driving motor 801 can run smoothly and drive the cutting block 802 to rotate, so that the excess plastic part at the inner end of the circular hole 805 on one side is rotated and switched to the other side, and at the same time, the excess plastic in the vent valve column 601 is cut off, and then the excess plastic will smoothly fall into the interior of the storage box 10 for collection, so as to realize autonomous cutting of the excess part.

[0071] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0072] 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. A blow molding machine for producing lampshades, characterized in that: It comprises a blow molding machine body (1); A sliding mechanism (4) is slidably connected to the bottom of one side of the blow molding machine body (1); Blow molding molds (5) are arranged on both sides of the top of the sliding mechanism (4); A venting groove (11) is provided in the middle of the bottom end of the blow mould (5); A ventilation mechanism (6) is arranged inside the ventilation groove (11); The cutting mechanism (8) comprises a driving motor (801), the driving motor (801) is fixedly mounted inside the bottom end of the blow mould (5) and is located on one side of the top end of the ventilation mechanism (6), a cutting round block (802) is fixedly sleeved on the top of the driving motor (801), a trigger component (803) is arranged on one side of the top of the ventilation mechanism (6), a sensor component (804) is arranged inside the blow mould (5) and is located below one side of the trigger component (803), and round holes (805) are opened on both sides of the cutting round block (802).

2. The blow molding machine for producing lampshades according to claim 1, characterized in that: A screw injection molding mechanism (2) is arranged on the top of the blow molding machine body (1), and a blow molding mechanism (3) located directly above the blow molding mold (5) is arranged on the top of one side of the blow molding machine body (1).

3. The blow molding machine for producing lampshades according to claim 1, characterized in that: The ventilation mechanism (6) comprises a ventilation valve column (601), a connecting spring (602), a top pipe (603), a hydraulic component (604) and a shielding component (605). The ventilation valve column (601) is movably installed on the top of the ventilation groove (11), and the ventilation valve column (601) is elastically connected to the inner wall of the ventilation groove (11) via a connecting spring (602). The top pipe (603) is arranged inside the ventilation groove (11) and below the ventilation valve column (601). The hydraulic component (604) is arranged inside one side of the ventilation valve column (601), and the shielding component (605) is arranged on the top of the ventilation valve column (601).

4. The blow molding machine for producing lampshades according to claim 3, characterized in that: The hydraulic assembly (604) includes a hydraulic cylinder (6041), a power piston rod (6042) and a first power spring (6043); The hydraulic cylinder (6041) is arranged on one side of the top of the ventilation valve column (601), and the power piston rod (6042) is movably installed in the inner cavity of the hydraulic cylinder (6041). The power piston rod (6042) is elastically connected to the inner wall of the hydraulic cylinder (6041) through a first power spring (6043).

5. The blow molding machine for producing lampshades according to claim 3, characterized in that: The shielding assembly (605) comprises a shielding plate (6051), a mounting shaft (6052) and a hydraulic cylinder (6053); The baffle plate (6051) is movably mounted in the middle of the top end of the ventilation valve column (601), the installation shaft (6052) is fixedly mounted in the middle of the bottom end of the baffle plate (6051), the hydraulic cylinder (6053) is fixedly mounted inside the ventilation valve column (601) and is located on the bottom end surface of the installation shaft (6052), and the hydraulic cylinder (6041) is connected through the oil channel (7).

6. The blow molding machine for producing lampshades according to claim 1, characterized in that: The trigger assembly (803) comprises a trigger cylindrical block (8031), a ramp block (8032), a pusher (8033) and a second power spring (8034); The trigger cylindrical block (8031) is movably mounted on one side of the top of the ventilation valve column (601), the inclined block (8032) is arranged at the bottom of one side of the trigger cylindrical block (8031), the pushing member (8033) is movably mounted inside the ventilation valve column (601) and is located below one side of the trigger cylindrical block (8031), and the pushing member (8033) is elastically connected to the inner wall of the ventilation valve column (601) through a second power spring (8034).

7. The blow molding machine for producing lampshades according to claim 6, characterized in that: The contact surfaces of the inclined surface block (8032) and the pushing member (8033) are both designed with inclined surfaces.

8. The blow molding machine for producing lampshades according to claim 1, characterized in that: The sensing component (804) includes a pressure transmission block (8041) and a pressure sensor (8042); The pressure transmission block (8041) is arranged inside the blow mould (5) and is located below the inner side of the trigger assembly (803); the pressure sensor (8042) is arranged inside the blow mould (5) and is located inside the pressure sensor (8042).

9. The blow molding machine for producing lampshades according to claim 1, characterized in that: The inner wall of the blow mould (5) is provided with a sealing assembly (9) located at one side of the bottom of the blow moulding machine body (1), and the sealing assembly (9) comprises a fixing frame (901), a sealing baffle (902), a limiting rod (903) and a connecting arm (904); The fixing frame (901) is fixedly mounted on one side of the bottom of the vent valve column (601); the sealing baffle (902) is movably mounted on the bottom of the blow mould (5) and is located directly below the vent groove (11); the limiting rod (903) is arranged inside the blow mould (5) and is slidably connected to the outer end of the sealing baffle (902); and the connecting arm (904) is hinged between the bottom end of the fixing frame (901) and one side of the bottom end of the sealing baffle (902).

10. The blow molding machine for producing lampshades according to claim 1, characterized in that: A storage box (10) is provided at the bottom of the blow mould (5).

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