Injection mold pressure detection equipment

Abstract

The invention relates to the technical field of injection molding detection, in particular to injection mold pressure detection equipment, and solves the problems that in the existing process of detecting the pressure of an injection mold, both the pressure during mold closing of the injection mold and the injection molding pressure of an injection molding material influence the molding quality of an injection molded part, only the injection molding pressure is monitored, the detection is incomplete, and the detection efficiency is high. The device comprises a mold pressurization monitoring mechanism and a runner pressure monitoring mechanism, an injection molding machine is installed on the outer side of the mold pressurization monitoring mechanism, the runner pressure monitoring mechanism is installed on one side of the injection molding machine, and the injection molding machine comprises a rack. By synchronously monitoring the pressure during mold closing and the injection molding pressure of the injection molding material, pressure detection can be effectively carried out in the injection molding process, detection is more comprehensive, temperature isolation and circulating ventilation are carried out during injection molding of the injection molding material, and the deviation condition of a detection result caused by the temperature influence of the injection molding material can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding detection, in particular to injection mold pressure detection equipment. Background Art

[0002] Injection mold pressure detection equipment is a device used to measure the pressure of injection molds during operation. During the injection molding process, the injection mold will be subjected to the pressure of the plastic melt. The size of this pressure directly affects the quality of the product. Injection mold pressure detection is an important link to ensure the stability of the injection molding process and product quality. Pressure detection is intended to confirm the stability of injection molding, timely discover and deal with unstable factors, optimize injection molding conditions, help stabilize injection molding, shorten molding cycle, and improve product qualification rate. Injection mold pressure detection plays an important role in injection molding production. It helps to ensure product quality and production stability.

[0003] In the existing process of pressure testing of injection molds, the pressure of the injection mold when closing the mold and the injection pressure of the injection material both affect the molding quality of the injection molded parts. Often, only the injection pressure is monitored, the detection is imperfect, and the detection result is easily affected by the temperature of the injection material. Therefore, it does not meet the existing needs. In this regard, we have proposed an injection mold pressure testing device. Summary of the invention

[0004] The purpose of the present invention is to provide an injection mold pressure detection device to solve the problem raised in the above background technology that in the existing process of pressure detection of injection molds, the pressure of the injection mold when the mold is closed and the injection pressure of the injection material both affect the molding quality of the injection molded parts, and often only the injection pressure is monitored, the detection is imperfect, and the detection result is easily affected by the temperature of the injection material.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an injection mold pressure detection device, comprising a mold pressurization monitoring mechanism and a runner pressure monitoring mechanism, an injection molding machine is installed on the outside of the mold pressurization monitoring mechanism, a runner pressure monitoring mechanism is installed on one side of the injection molding machine, the injection molding machine comprises a frame, an injection molding lower mold base is fixedly installed on the upper end surface of the frame, and a protective limit cover is fixedly installed on the upper end surface of the injection molding lower mold base; The mold pressurization monitoring mechanism includes a guide sleeve, both ends of which are fixedly connected to the oil cylinder mounting plate and the protective limit cover, an installation movable ring is installed on the inner side of the bottom end of the guide sleeve, a pressure ring is installed on the inner side of the installation movable ring, and a first pressure sensor is provided between the installation movable ring and the pressure ring; The flow channel pressure monitoring mechanism includes a circulating cooling box, which is fixedly connected to the frame, and return pipes are installed at both ends of the circulating cooling box, a cold air input pipe is installed on the inner side of the return pipe, a conical cover is installed at one end of the return pipe, a first solenoid valve is installed between the conical cover and the cold air input pipe, a second solenoid valve is installed at one end of the cold air input pipe, a second pressure sensor is fixedly provided on one side of the conical cover, an insulation disk is slidably connected to the inner side of the middle part of the conical cover, and a warming seat is fixedly provided on one side of the insulation disk.

[0006] Preferably, the injection molding machine also includes two transmission side plates fixedly connected to the frame, a conveyor belt is installed between the two transmission side plates, a conveying motor is fixedly installed at one end of one of the transmission side plates, injection seats are fixedly installed on both sides of the injection lower mold base, injection pipes are fixedly installed at both ends of one side of the injection seat, support columns are fixedly installed on the inner sides of the four end corners of the protective limit cover, a cylinder mounting plate is fixedly installed on the upper ends of the four support columns, a hydraulic cylinder is fixedly installed on the middle part of the upper end surface of the cylinder mounting plate, the inner side of the middle part of the protective limit cover is slidably connected to the injection upper mold base, and a plurality of injection molding rods are fixedly installed on the inner side of the bottom end of the injection upper mold base.

[0007] Preferably, the mold pressurization monitoring mechanism also includes an adjusting sleeve connected to the upper end surface of the mounting movable ring, a transmission rod is slidably connected to the middle of the mounting movable ring, and a pressure ring is installed on the outer side of the upper end of the transmission rod.

[0008] Preferably, the flow channel pressure monitoring mechanism also includes a breathable cover plate fixedly connected to the upper end of the circulating cooling box, a radiator is fixedly installed on the inner side of the circulating cooling box, a filter box is installed above the radiator, an isolation plate is installed on the outer side of the upper end of the radiator, three fan boxes are fixedly installed on the upper end surface of the isolation plate, a sealing gasket is provided at one end of the conical cover, and a limiting ring is fixedly installed on the inner wall of one end of the conical cover.

[0009] Preferably, drive rollers are provided on the inner sides of both ends of the conveyor belt, the output end of the conveying motor passes through the transmission side plate and is connected to one of the drive rollers through a coupling, the rotation direction of the conveyor belt is clockwise, the output end of the hydraulic cylinder passes through the cylinder mounting plate and the protective limit cover and is fixedly connected to the middle part of the injection upper mold base, the injection upper mold base and a plurality of injection molding rods slide linearly back and forth along the axis of the hydraulic cylinder, an injection runner is provided inside the injection lower mold base, and the four injection pipes are connected to the injection runner through two injection seats.

[0010] Preferably, the bottom end of the adjusting sleeve passes through the guide sleeve and is fixedly connected to the mounting movable ring, the adjusting sleeve is connected to the guide sleeve via threads, and the first pressure sensor is fixedly connected to the mounting movable ring via a pressure ring.

[0011] Preferably, the bottom end of the transmission rod passes through the mounting movable ring and is fixedly connected to the injection mold base, the upper end of the transmission rod is welded and fixed to the pressure ring, and the transmission rod slides linearly back and forth along the axis of the mounting movable ring.

[0012] Preferably, the circulating cooling box is connected to the two conical covers via a return pipe, one end of the cold air input pipe passes through the return pipe and is plugged into the inner side of the conical cover, a return channel is provided between the conical cover and the cold air input pipe, and an input channel is provided on the inner side of the cold air input pipe.

[0013] Preferably, a sealing ring is provided between the insulation disk and the conical cover, an electric thermal resistance wire is provided inside the temperature increasing seat, an air filling cavity is provided between the conical cover and the insulation disk, the reflux channel and the input channel are connected through the air filling cavity, and the conical cover is connected with the injection seat.

[0014] Preferably, the first solenoid valve is fixedly connected to the conical cover, the cold air inlet pipe is fixedly connected to the second solenoid valve, an air pump is provided between the end of the cold air inlet pipe away from the conical cover and the filter box, the cold air inlet pipe passes through the radiator and is connected to the output end of the air pump, the input end of the air pump is in close contact with the filter box, a filter element is provided inside the filter box, the interior of the radiator is filled with cooling medium, and the circulating cooling box is fixedly connected to three fan boxes via an isolation plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives a plurality of injection molding rods to be inserted into the inner side of the injection lower mold base through the injection upper mold base and realizes the mold closing operation. During the downward movement of the injection upper mold base, the transmission rod and the pressure ring are synchronously driven to move downward on the inner side of the adjusting sleeve, so that the pressure ring can press down the pressure ring, and then the pressure during mold closing can be monitored by the first pressure sensor provided between the movable ring and the pressure ring. By rotating the adjusting sleeve, the movable ring is driven by the adjusting sleeve to rotate and lift on the inner side of the guide sleeve, so that the spacing between the pressure ring and the pressure ring can be adjusted, so as to meet the use of different lifting amounts of the injection upper mold base; 2. The present invention injects the hot-melt injection plastic into the injection runner through the injection pipe and the lower injection mold seat, and then the injection molding operation can be realized through the flow guide of the injection runner. The heat insulation plate is squeezed by the injection plastic to drive the temperature increasing seat to slide on the inner side of the conical cover. The second pressure sensor can monitor the pressure of the inflation cavity provided between the conical cover and the heat insulation plate, and then the pressure of the injection plastic in the injection runner can be detected, which is convenient for monitoring the injection molding process. 3. The present invention uses an air pump to filter external air through a filter box and then injects it into the inner side of a cold air input pipe, and then the cold air input pipe can transport the gas cooled by the radiator to the inner side of the inflation chamber to achieve a cooling operation, and can evacuate the inflation chamber through a fan box and a return pipe, thereby facilitating circulating air supply to the inner side of the inflation chamber, thereby avoiding the temperature inside the inflation chamber from being affected by the injection molding material, and improving the monitoring result of the injection molding pressure. By simultaneously monitoring the pressure during mold closing and the injection molding pressure of the injection molding material, the injection molding process can be effectively pressure-tested, and the detection is more comprehensive. In addition, temperature isolation and circulating ventilation are performed on the injection molding material during injection molding, thereby effectively avoiding the deviation of the detection result caused by the temperature of the injection molding material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A front view of the present invention as a whole; Figure 3 It is a schematic diagram of the cross-sectional structure of the injection molding shaping rod of the present invention; Figure 4 It is a structural schematic diagram of the mold pressurization monitoring mechanism of the present invention; Figure 5 For the present invention Figure 2 Schematic diagram of the cross-sectional structure of area A in the middle; Figure 6 It is a structural schematic diagram of the flow channel pressure monitoring mechanism of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the cross-sectional structure of the middle B area; Figure 8 It is a schematic diagram of the partial cross-sectional structure of the circulating cooling box of the present invention.

[0017] In the figure: 1. Injection molding machine; 101. Frame; 102. Injection molding lower mold base; 103. Protective limit cover; 104. Support column; 105. Cylinder mounting plate; 106. Hydraulic cylinder; 107. Transmission side plate; 108. Conveyor belt; 109. Conveying motor; 110. Injection seat; 111. Injection pipe; 112. Injection molding upper mold base; 113. Injection molding shaping rod; 2. Mold pressurization monitoring mechanism; 201. Guide sleeve; 202. Adjustment sleeve; 203. Transmission rod; 204. Install movable ring; 205 , pressure ring; 206, first pressure sensor; 207, pressurizing ring; 3, flow channel pressure monitoring mechanism; 301, circulating cooling box; 302, breathable cover; 303, return pipe; 304, cone cover; 305, sealing gasket; 306, cold air inlet pipe; 307, first solenoid valve; 308, second solenoid valve; 309, second pressure sensor; 310, insulation plate; 311, heating seat; 312, limit ring; 313, radiator; 314, isolation plate; 315, fan box; 316, filter box. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] The hydraulic cylinder 106 (model HOB80X250-100) and the conveying motor 109 (model GV50-3.7KW-60-S) mentioned in the present invention can be purchased from the market or obtained through private customization.

[0020] See also Figures 1 to 3An embodiment of the present invention provides: an injection mold pressure detection device, including a mold pressurization monitoring mechanism 2 and a runner pressure monitoring mechanism 3, an injection molding machine 1 is installed on the outside of the mold pressurization monitoring mechanism 2, and the injection molding machine 1 includes a frame 101, an injection molding lower mold base 102 is fixedly installed on the upper end surface of the frame 101, and a protective limit cover 103 is fixedly installed on the upper end surface of the injection molding lower mold base 102. Two transmission side plates 107 are fixedly installed on the inner side of the frame 101, and a conveyor belt 108 is installed between the two transmission side plates 107, and one end of one of the transmission side plates 107 is fixedly installed with a conveying motor 109, and the two ends of the conveyor belt 108 are fixedly installed. The inner side is provided with a driving roller, the output end of the conveying motor 109 passes through the transmission side plate 107 and is connected to one of the driving rollers through a coupling, the rotation direction of the conveyor belt 108 is clockwise, and the two sides of the injection mold base 102 are fixedly installed with injection seats 110, and the two ends of one side of the injection seat 110 are fixedly installed with injection pipes 111. The interior of the injection mold base 102 is provided with an injection flow channel, and the four injection pipes 111 are connected with the injection flow channel through the two injection seats 110. The injection plastic in the hot melt state is injected into the injection flow channel through the injection pipe 111 and the injection mold base 102, and then the injection molding operation can be realized through the diversion of the injection flow channel; The inner sides of the four end corners of the protective limit cover 103 are fixedly installed with support columns 104, and the upper ends of the four support columns 104 are fixedly installed with a cylinder mounting plate 105, and the middle part of the upper end surface of the cylinder mounting plate 105 is fixedly installed with a hydraulic cylinder 106, and the inner side of the middle part of the protective limit cover 103 is slidably connected with an injection upper mold base 112, and the inner side of the bottom end of the injection upper mold base 112 is fixedly installed with a plurality of injection molding rods 113, and the output end of the hydraulic cylinder 106 passes through the cylinder mounting plate 105 and the protective limit cover 103 and is fixedly connected to the middle part of the injection upper mold base 112, and the injection upper mold base 112 and the plurality of injection molding rods 113 slide linearly back and forth along the axis of the hydraulic cylinder 106, so that the hydraulic cylinder 106 drives the plurality of injection molding rods 113 to be inserted into the inner side of the injection lower mold base 102 through the injection upper mold base 112 to realize the mold closing operation.

[0021] See also Figure 4 and Figure 5The mold pressure monitoring mechanism 2 includes a guide sleeve 201, both ends of which are fixedly connected to the cylinder mounting plate 105 and the protective limit cover 103, an installation movable ring 204 is installed on the inner side of the bottom end of the guide sleeve 201, a pressure ring 205 is installed on the inner side of the installation movable ring 204, a first pressure sensor 206 is provided between the installation movable ring 204 and the pressure ring 205, a transmission rod 203 is slidably connected to the middle part of the installation movable ring 204, a pressure ring 207 is installed on the outer side of the upper end of the transmission rod 203, and during the downward movement of the injection molding upper mold base 112, the transmission rod 203 and the pressure ring 207 are synchronously driven to move downward on the inner side of the adjusting sleeve 202 and press down the pressure ring 205, so that the pressure of the mold during mold closing can be monitored through the first pressure sensor 206; The first pressure sensor 206 is fixedly connected to the mounting movable ring 204 through the pressure ring 205. The upper end surface of the mounting movable ring 204 is installed with an adjusting sleeve 202. The bottom end of the adjusting sleeve 202 passes through the guide sleeve 201 and is fixedly connected to the mounting movable ring 204. The adjusting sleeve 202 is connected to the guide sleeve 201 by threads. The bottom end of the transmission rod 203 passes through the mounting movable ring 204 and is fixedly connected to the injection mold base 112. The upper end of the transmission rod 203 is welded and fixed to the pressure ring 207. The transmission rod 203 slides linearly back and forth along the axis of the mounting movable ring 204, so that the adjusting sleeve 202 drives the mounting movable ring 204 to rotate and lift on the inner side of the guide sleeve 201, thereby being able to adjust the distance between the pressure ring 205 and the pressure ring 207, thereby meeting the use of different lifting amounts of the injection mold base 112.

[0022] See also Figures 6 to 8 A flow channel pressure monitoring mechanism 3 is installed on one side of the injection molding machine 1. The flow channel pressure monitoring mechanism 3 includes a circulating cooling box 301. The circulating cooling box 301 is fixedly connected to the frame 101. Return pipes 303 are installed at both ends of the circulating cooling box 301. A cold air input pipe 306 is installed on the inner side of the return pipe 303. A conical cover 304 is installed at one end of the return pipe 303. One end of the cold air input pipe 306 passes through the return pipe 303 and is plugged into the inner side of the conical cover 304. The circulating cooling box 301 and the two conical covers 304 are connected through the return pipe 303. A return channel is provided between the conical cover 304 and the cold air input pipe 306. An input channel is provided on the inner side of the cold air input pipe 306. The return channel and the input channel are connected through the air charging cavity. The inner side of the air charging cavity can be circulated and supplied with air through the return channel and the input channel to avoid being affected by the temperature of the injection molding material. A first solenoid valve 307 is installed between the conical cover 304 and the cold air inlet pipe 306, a second solenoid valve 308 is installed at one end of the cold air inlet pipe 306, the first solenoid valve 307 is fixedly connected to the conical cover 304, the cold air inlet pipe 306 is fixedly connected to the second solenoid valve 308, a second pressure sensor 309 is fixedly installed on one side of the conical cover 304, a heat insulation disk 310 is slidably connected to the inner side of the middle part of the conical cover 304, a heating seat 311 is fixedly installed on one side of the heat insulation disk 310, a sealing ring is provided between the heat insulation disk 310 and the conical cover 304, an electric heating resistance wire is provided inside the heating seat 311, an air filling cavity is provided between the conical cover 304 and the heat insulation disk 310, the conical cover 304 is through-connected with the injection seat 110, and the injection plastic close to the heat insulation disk 310 can be heated through the heating seat 311 to prevent the injection plastic from solidifying; The flow channel pressure monitoring mechanism 3 also includes a breathable cover plate 302 fixedly connected to the upper end of the circulating cooling box 301, a radiator 313 is fixedly installed on the inner side of the circulating cooling box 301, a filter box 316 is installed above the radiator 313, an isolation plate 314 is installed on the outer side of the upper end of the radiator 313, and three fan boxes 315 are fixedly installed on the upper end surface of the isolation plate 314. A sealing gasket 305 is provided at one end of the conical cover 304, and a limit ring 312 is fixedly installed on the inner wall of one end of the conical cover 304. The end of the cold air inlet pipe 306 away from the conical cover 304 is connected to the filter box 316. An air pump is provided between 16, a cold air inlet pipe 306 passes through the radiator 313 and is connected with the output end of the air pump, the input end of the air pump is in contact with the filter box 316, a filter element is provided inside the filter box 316, the interior of the radiator 313 is filled with cooling medium, the circulating cooling box 301 and the three fan boxes 315 are fixedly connected by an isolation plate 314, the air pump filters the external air through the filter box 316 and injects it into the inner side of the cold air inlet pipe 306, and then the cold air inlet pipe 306 can transport the gas cooled by the radiator 313 to the inner side of the inflation cavity to achieve cooling operation.

[0023] When in use, when the pressure of the injection mold is tested, the two ends of the guide sleeve 201 are fixedly connected to the cylinder mounting plate 105 and the protective limit cover 103, so that the bottom end of the transmission rod 203 passes through the mounting movable ring 204 and is fixedly connected to the injection upper mold base 112. When the injection molded part is injection-molded, an injection flow channel is provided inside the injection lower mold base 102, and four injection pipes 111 are connected to the injection flow channel through two injection seats 110. The power is turned on and the hydraulic cylinder 106 is started, so that the hydraulic cylinder 106 drives the multiple injection molding rods 113 to be inserted into the inner side of the injection lower mold base 102 through the injection upper mold base 112 under the support of the cylinder mounting plate 105 and realizes the mold closing operation; During the downward movement of the injection molding upper mold base 112, the transmission rod 203 and the pressure ring 207 are synchronously driven to move downward on the inner side of the adjusting sleeve 202, so that the pressure ring 207 can press down the pressure ring 205, and then the pressure during mold closing can be monitored by the first pressure sensor 206 provided between the mounting movable ring 204 and the pressure ring 205. By rotating the adjusting sleeve 202, the mounting movable ring 204 is driven by the adjusting sleeve 202 to rotate and lift on the inner side of the guide sleeve 201, so that the distance between the pressure ring 205 and the pressure ring 207 can be adjusted, so as to meet the use of different lifting amounts of the injection molding upper mold base 112; The two conical covers 304 are fixed on one side of the injection seat 110, so that the conical covers 304 and the injection channel are connected through the injection seat 110, and the injection plastic in the hot melt state is injected into the injection channel through the injection pipe 111 and the injection lower mold seat 102, and then the injection molding operation can be realized through the flow guidance of the injection channel. At this time, the heat insulation disk 310 is squeezed by the injection plastic and drives the temperature increasing seat 311 to slide on the inner side of the conical cover 304, and the first solenoid valve 307 and the second solenoid valve 308 are in the closed state. The pressure of the inflation cavity provided between the conical cover 304 and the heat insulation disk 310 can be monitored by the second pressure sensor 309, and then the pressure of the injection plastic in the injection channel can be detected, so as to facilitate the monitoring of the injection molding process; When the injection molding is completed, the first solenoid valve 307 and the second solenoid valve 308 are opened, so that the air pump between the cold air input pipe 306 and the filter box 316 injects the external air into the inner side of the cold air input pipe 306 after being filtered by the filter box 316, and then the cold air input pipe 306 can transport the gas cooled by the radiator 313 to the inner side of the inflation cavity to achieve a cooling operation, and the inflation cavity can be evacuated through the fan box 315 and the return pipe 303, so as to facilitate the circulation of air to the inner side of the inflation cavity, avoid the temperature inside the inflation cavity being affected by the injection molding material, and improve the monitoring result of the injection molding pressure.

[0024] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An injection mold pressure detection device, comprising a mold pressurization monitoring mechanism (2) and a flow channel pressure monitoring mechanism (3), characterized in that: An injection molding machine (1) is installed outside the mold pressure monitoring mechanism (2), a flow channel pressure monitoring mechanism (3) is installed on one side of the injection molding machine (1), the injection molding machine (1) comprises a frame (101), an injection lower mold base (102) is fixedly installed on the upper end surface of the frame (101), and a protective limit cover (103) is fixedly installed on the upper end surface of the injection lower mold base (102); The mold pressure monitoring mechanism (2) comprises a guide sleeve (201), the two ends of the guide sleeve (201) are fixedly connected to the oil cylinder mounting plate (105) and the protective limit cover (103), a mounting movable ring (204) is installed on the inner side of the bottom end of the guide sleeve (201), a pressure ring (205) is installed on the inner side of the mounting movable ring (204), and a first pressure sensor (206) is provided between the mounting movable ring (204) and the pressure ring (205); The flow channel pressure monitoring mechanism (3) comprises a circulating cooling box (301), the circulating cooling box (301) being fixedly connected to the frame (101), return pipes (303) being installed at both ends of the circulating cooling box (301), a cold air input pipe (306) being installed on the inner side of the return pipe (303), a conical cover (304) being installed on one end of the return pipe (303), a first solenoid valve (307) being installed between the conical cover (304) and the cold air input pipe (306), a second solenoid valve (308) being installed on one end of the cold air input pipe (306), a second pressure sensor (309) being fixedly provided on one side of the conical cover (304), a heat insulation disk (310) being slidably connected to the inner side of the middle part of the conical cover (304), and a temperature increasing seat (311) being fixedly installed on one side of the heat insulation disk (310).

2. The injection mold pressure detection device according to claim 1, characterized in that: The injection molding machine (1) further comprises two transmission side plates (107) fixedly connected to the frame (101), a conveyor belt (108) being installed between the two transmission side plates (107), a conveying motor (109) being fixedly installed at one end of one of the transmission side plates (107), injection seats (110) being fixedly installed at both sides of the lower injection mold base (102), injection pipes (111) being fixedly installed at both ends of one side of the injection seat (110), and the protective limit Support columns (104) are fixedly mounted on the inner sides of the four end corners of the position limit cover (103); a cylinder mounting plate (105) is fixedly mounted on the upper ends of the four support columns (104); a hydraulic cylinder (106) is fixedly mounted on the middle of the upper end surface of the cylinder mounting plate (105); an injection molding upper mold base (112) is slidably connected to the inner side of the middle of the protective position limit cover (103); and a plurality of injection molding shaping rods (113) are fixedly mounted on the inner side of the bottom end of the injection molding upper mold base (112).

3. The injection mold pressure detection device according to claim 2, characterized in that: The mold pressure monitoring mechanism (2) further comprises an adjusting sleeve (202) connected to the upper end surface of the mounting movable ring (204), a transmission rod (203) is slidably connected to the middle of the mounting movable ring (204), and a pressure ring (207) is installed on the outer side of the upper end of the transmission rod (203).

4. The injection mold pressure detection device according to claim 2, characterized in that: The flow channel pressure monitoring mechanism (3) further comprises a breathable cover plate (302) fixedly connected to the upper end of the circulating cooling box (301); a radiator (313) is fixedly mounted on the inner side of the circulating cooling box (301); a filter box (316) is mounted above the radiator (313); an isolation plate (314) is mounted on the outer side of the upper end of the radiator (313); three fan boxes (315) are fixedly mounted on the upper end surface of the isolation plate (314); a sealing gasket (305) is provided at one end of the conical cover (304); and a limit ring (312) is fixedly mounted on the inner wall of one end of the conical cover (304).

5. The injection mold pressure detection device according to claim 2, characterized in that: Transmission rollers are provided on the inner sides of both ends of the conveyor belt (108); the output end of the conveying motor (109) passes through the transmission side plate (107) and is connected to one of the transmission rollers via a coupling; the rotation direction of the conveyor belt (108) is clockwise; the output end of the hydraulic cylinder (106) passes through the cylinder mounting plate (105) and the protective limit cover (103) and is fixedly connected to the middle of the injection upper mold base (112); the injection upper mold base (112) and a plurality of injection molding rods (113) slide linearly back and forth along the axis of the hydraulic cylinder (106); an injection flow channel is provided inside the injection lower mold base (102); and the four injection pipes (111) are connected to the injection flow channel via two injection seats (110).

6. The injection mold pressure detection device according to claim 3, characterized in that: The bottom end of the adjusting sleeve (202) passes through the guide sleeve (201) and is fixedly connected to the mounting movable ring (204); the adjusting sleeve (202) and the guide sleeve (201) are connected via threads; and the first pressure sensor (206) and the mounting movable ring (204) are fixedly connected via a pressure ring (205).

7. The injection mold pressure detection device according to claim 6, characterized in that: The bottom end of the transmission rod (203) passes through the mounting movable ring (204) and is fixedly connected to the injection mold upper base (112); the top end of the transmission rod (203) is welded and fixed to the pressure ring (207); and the transmission rod (203) slides linearly back and forth along the axis of the mounting movable ring (204).

8. The injection mold pressure detection device according to claim 4, characterized in that: The circulating cooling box (301) and the two conical covers (304) are connected through a return pipe (303); one end of the cold air input pipe (306) passes through the return pipe (303) and is plugged into the inner side of the conical cover (304); a return channel is provided between the conical cover (304) and the cold air input pipe (306); and an input channel is provided on the inner side of the cold air input pipe (306).

9. The injection mold pressure detection device according to claim 8, characterized in that: A sealing ring is provided between the heat insulating disk (310) and the conical cover (304), an electric heat resistance wire is provided inside the temperature increasing seat (311), an air filling cavity is provided between the conical cover (304) and the heat insulating disk (310), the reflux channel and the input channel are connected through the air filling cavity, and the conical cover (304) is connected to the injection seat (110).

10. The injection mold pressure detection device according to claim 9, characterized in that: The first solenoid valve (307) is fixedly connected to the conical cover (304), the cold air input pipe (306) is fixedly connected to the second solenoid valve (308), an air pump is provided between one end of the cold air input pipe (306) away from the conical cover (304) and the filter box (316), the cold air input pipe (306) passes through the radiator (313) and is connected to the output end of the air pump, the input end of the air pump is in close contact with the filter box (316), a filter element is provided inside the filter box (316), the inside of the radiator (313) is filled with cooling medium, and the circulating cooling box (301) is fixedly connected to the three fan boxes (315) via an isolation plate (314).

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