Safety door for injection molding machine

Abstract

The present invention relates to the technical field of safety doors, specifically a safety door for an injection molding machine, comprising an injection molding mechanism, a cleaning mechanism installed at the bottom of the injection molding mechanism, a dirt cleaning mechanism installed on the cleaning mechanism and located in the injection molding mechanism, a reset sealing mechanism installed in the injection molding mechanism and arranged outside the dirt cleaning mechanism, and two sets of door panel mechanisms arranged in the injection molding mechanism; the injection molding mechanism is used to push hot melt materials for solidification and molding. By setting the traditional hydraulic side sliding safety door in a vertical lifting manner, and adding an independent reset sealing mechanism between the control box and the cabinet of the molding machine, as the two window panels are smoothly lifted and lowered along the scraping assembly, the window panels can be fully cleaned during both the mold opening and mold closing processes, thereby reducing the cost of manual cleaning and improving the safety of window panel cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of safety doors, in particular to a safety door for an injection molding machine. Background Art

[0002] The working principle of the injection molding machine is similar to that of a syringe used for injections. It uses the thrust of a screw (or plunger) to inject plasticized molten plastic (i.e., viscous flow) into a closed mold cavity, and obtains the finished product after solidification and shaping.

[0003] Since injection molding is a cyclic process, each cycle mainly includes: quantitative feeding - melting and plasticization - pressure injection - mold filling and cooling - mold opening and taking out the parts. After taking out the plastic parts, the mold is closed again to carry out the next cycle. In the process, due to the continuous pressurization, part of the hot melt material will be spattered, and the spattered hot melt material will adhere to the window panel of the safety door. When the mold is closed, the material on the window panel will form hard granular impurities, which will interfere with the clarity of the window panel. At the same time, the impurities on the inside of the window panel will increase the difficulty of manual cleaning, which is time-consuming and labor-intensive.

[0004] In view of this, a safety door for an injection molding machine is designed to solve the above problems. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in the present invention is:

[0007] A safety door for an injection molding machine comprises an injection molding mechanism, a material cleaning mechanism installed at the bottom of the injection molding mechanism, a dirt cleaning mechanism installed on the material cleaning mechanism and located in the injection molding mechanism, a reset sealing mechanism installed in the injection molding mechanism and arranged outside the dirt cleaning mechanism, and two sets of door panel mechanisms arranged in the injection molding mechanism; the injection molding mechanism is used to push hot-melt materials for solidification and molding; the material cleaning mechanism comprises a first bottom plate and a second bottom plate, a main guard plate installed on the top of the first bottom plate, an auxiliary guard plate installed on the top of the second bottom plate, and four wire tubes; the reset sealing mechanism comprises two pressure-bearing pads installed on the tops of the main guard plate and the auxiliary guard plate, two protective vertical plates installed on the two pressure-bearing pads, a scraping assembly installed on the inner sides of the two pressure-bearing pads, and a liquid injection piece arranged on the scraping assembly; the dirt cleaning mechanism comprises a bottom plate installed between the two pressure-bearing pads, two material guide baffles arranged at both ends of the bottom plate, and a bolt rope connected to the bottom of the material guide baffle; the door panel mechanism comprises a safety outer frame plate arranged outside the material guide baffle and a transparent window plate installed in the safety outer frame plate.

[0008] In a preferred example, the present invention can be further configured as follows: a vertical groove is opened on the inner side of the pressure bearing pad, and there are two vertical grooves, and the guide baffle is movably installed in the two vertical grooves.

[0009] The inner sides of the two pressure-bearing pads are provided with pad feet, two limiting rods fixedly installed on the tops of the pad feet, and springs arranged outside the limiting rods.

[0010] In a preferred example, the present invention can be further configured as follows: the dirt accumulation cleaning mechanism also includes a beam plate installed at the bottom of the base plate, a hydraulic component installed inside the beam plate, a clamp installed at the bottom end of the hydraulic sub-rod in the hydraulic component, and two brackets installed at both ends of the clamp;

[0011] Columnar gaskets are installed on the guide rods at both ends of the material guide baffle, and tension springs are arranged on the tops of the columnar gaskets.

[0012] In a preferred example, the present invention can be further configured as follows: the injection molding mechanism includes a control box and a truss, a top plate installed on the top of the control box and the truss, and four sets of cabinets installed between the control box and the truss.

[0013] In a preferred example, the present invention can be further configured as follows: the material clearing mechanism further includes a first cushion block mounted on the top of the first bottom plate, a second cushion block mounted on the top of the second bottom plate, and two sealing doors;

[0014] One of the door-sealing activities is installed in a window outside the main guard plate, and the other door-sealing activity is installed in a window of the auxiliary guard plate;

[0015] The control chassis is fixedly mounted on the top of the second cushion block;

[0016] The truss is fixedly mounted on the top of the first cushion block.

[0017] In a preferred example, the present invention can be further configured as follows: the door panel mechanism also includes two end heads fixedly mounted on the top of the safety outer frame plate and a pull rod mounted inside the safety outer frame plate;

[0018] The tether is adapted to penetrate into the interior of the wire tube, and an end of the tether that penetrates outside the wire tube is connected inside the end.

[0019] In a preferred example, the present invention can be further configured as follows: a partition is fixedly installed in the middle of the inner side of the protective vertical plate, and the partition is adapted to fit on the outer side of the safety outer frame plate;

[0020] A slot for guiding the lifting of the material guide baffle is provided on the inner side of the protective vertical plate close to the side of the bottom plate.

[0021] In a preferred example, the present invention can be further configured as follows: the scraping assembly includes a scraper installed on the inner side of two pressure-bearing pads, the scraper is provided with a groove on the inner side close to the safety outer frame plate, and two cross bars are installed in the groove, two brush rollers are movably installed on the outside of the two cross bars, and a plurality of nozzles are installed on the scraper;

[0022] The plurality of nozzles are adapted to be installed in the plurality of ports inside the liquid injection member.

[0023] In a preferred example, the present invention can be further configured as follows: a trapezoidal blade is provided on the top of the scraper, and a notch for guiding foreign particles is provided on one side of the scraper close to the material guide baffle;

[0024] The nozzle is made of a replaceable sponge.

[0025] In a preferred example, the present invention can be further configured as follows: two rectangular pins are provided at both ends of the top of the safety outer frame plate, and vertical holes adapted to be constrained by the limit rods are opened inside the two rectangular pins, and the top end of the spring is pressed against the bottom of the rectangular pins.

[0026] By adopting the above technical solution, the beneficial effects achieved by the present invention are:

[0027] 1. The present invention arranges the traditional hydraulic side-sliding safety door in a vertical lifting manner, and adds an independent reset sealing mechanism between the control box and the cabinet of the molding machine. As the two window panels are smoothly lifted and lowered along the scraping assembly, the window panels can be fully cleaned during the mold opening and closing processes, thereby reducing the cost of manual cleaning and improving the safety of window panel cleaning.

[0028] 2. The present invention adds two brush rollers inside the scraper that can squeeze and roll the inner side of the window panel, and uses a liquid injection piece to blow the cleaning liquid, hot steam flow and disinfectant mist required for the window panel along the inner side of the scraper to the inner side of the window panel. At this time, the above-mentioned cleaning materials can be used to comprehensively clean the inner side of the window panel in the gap between the scraper and the two brush rollers, thereby improving the clarity of the window panel after cleaning and quickly drying it.

[0029] 3. The present invention arranges a cleaning mechanism directly below the resetting sealing mechanism and the two groups of scraping components, and utilizes the two partitions in the cleaning mechanism to collect the scraped impurities. At this time, the two guide baffles rise as the two window panels descend, and finally the impurities scraped by the top edge of the scraper can enter the two partitions of the cleaning mechanism through the gap between the scraper and the guide baffle, thereby preventing the impurity particles from clogging the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the present invention when used;

[0031] Figure 2 It is a bottom view schematic diagram of the present invention;

[0032] Figure 3 Schematic diagram of the injection molding mechanism and the material clearing mechanism of the present invention;

[0033] Figure 4 is a schematic diagram of the dirt-accumulating face-cleansing mechanism of the present invention;

[0034] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point A in the middle;

[0035] Figure 6 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle;

[0036] Figure 7 is a schematic diagram of the door panel mechanism of the present invention;

[0037] Figure 8 For the present invention Figure 7 The enlarged schematic diagram of the center C;

[0038] Fig. 9 It is a schematic diagram of the scraping assembly of the present invention.

[0039] Reference numerals:

[0040] 100, injection molding mechanism; 110, control chassis; 120, truss; 130, cabinet; 140, top plate;

[0041] 200, material cleaning mechanism; 210, first cushion block; 220, second cushion block; 230, first bottom plate; 240, second bottom plate; 250, main guard plate; 260, auxiliary guard plate; 270, sealing door; 280, wire tube;

[0042] 300, reset sealing mechanism; 310, pressure bearing pad; 320, vertical groove; 330, protective vertical plate; 340, pad foot; 350, limit rod; 360, spring; 370, scraper assembly; 371, scraper; 372, cross bar; 373, brush roller; 374, spray pipe; 380, liquid injection part;

[0043] 400, dirt cleaning mechanism; 410, bottom plate; 420, beam plate; 430, hydraulic component; 440, chuck; 450, support frame; 460, material guide baffle; 470, tension spring; 480, tether rope;

[0044] 500, door panel mechanism; 510, safety outer frame plate; 520, end; 530, transparent window panel; 540, pull rod. DETAILED DESCRIPTION

[0045] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0046] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0047] A safety door for an injection molding machine provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings. Embodiment 1:

[0048] Combination Figure 1-Figure 9 As shown, the present invention provides a safety door for an injection molding machine, comprising an injection molding mechanism 100, a material cleaning mechanism 200 installed at the bottom of the injection molding mechanism 100, a dirt cleaning mechanism 400 installed on the material cleaning mechanism 200 and located in the injection molding mechanism 100, a reset sealing mechanism 300 installed in the injection molding mechanism 100 and arranged outside the dirt cleaning mechanism 400, and two sets of door panel mechanisms 500 arranged in the injection molding mechanism 100, and the injection molding mechanism 100 is used for pushing hot melt materials to solidify and form.

[0049] The injection molding mechanism 100 includes a control box 110 and a truss 120, a top plate 140 installed on the top of the control box 110 and the truss 120, and four sets of cabinets 130 installed between the control box 110 and the truss 120;

[0050] The cleaning mechanism 200 includes a first bottom plate 230, a second bottom plate 240, four wire tubes 280, a main guard plate 250 installed on the top of the first bottom plate 230, a secondary guard plate 260 installed on the top of the second bottom plate 240, a first cushion block 210 installed on the top of the first bottom plate 230, a second cushion block 220 installed on the top of the second bottom plate 240, and two sealing doors 270;

[0051] The reset sealing mechanism 300 includes two pressure-bearing pads 310 installed on the top of the main guard plate 250 and the auxiliary guard plate 260, two protective vertical plates 330 installed on the two pressure-bearing pads 310, a scraper assembly 370 installed on the inner side of the two pressure-bearing pads 310, and a liquid injection member 380 provided on the scraper assembly 370;

[0052] The scraper assembly 370 includes a scraper 371 installed on the inner side of the two pressure pads 310. The scraper 371 is provided with a groove near the inner side of the safety outer frame plate 510, and two cross bars 372 are installed in the groove, two brush rollers 373 movably installed outside the two cross bars 372, and a plurality of nozzles 374 installed on the scraper 371.

[0053] The dirt cleaning mechanism 400 includes a bottom plate 410 installed between two pressure pads 310, two material guide baffles 460 arranged at both ends of the bottom plate 410, a tether rope 480 connected to the bottom of the material guide baffle 460, a beam plate 420 installed at the bottom of the bottom plate 410, a hydraulic component 430 installed inside the beam plate 420, a clamp 440 installed at the bottom end of the hydraulic sub-rod in the hydraulic component 430, and two brackets 450 installed at both ends of the clamp 440;

[0054] The door panel mechanism 500 includes a safety outer frame plate 510 arranged outside the material guide baffle 460, a transparent window plate 530 installed inside the safety outer frame plate 510, two end heads 520 fixedly installed on the top of the safety outer frame plate 510, and a pull rod 540 installed inside the safety outer frame plate 510.

[0055] At present, the most common injection molding machine is a horizontal injection molding machine, in which the clamping part and the injection part are on the same horizontal center line, and the mold is opened in the horizontal direction. The gap between the mold and the injection is provided with an independent safety door, and the current side wing sliding safety door has many disadvantages. As the pressure of the hot melt material continues to increase during the extrusion and shaping process, there is a slight splashing of the hot melt material, which will form spherical impurity particles after splashing to the inside of the safety door. When the mold is closed, the solidified impurity particles will form deposited scale spots, which will lead to a decrease in the clarity of the transparent window panel. At the same time, the sliding of the side wings of the safety door will increase the difficulty of manual cleaning.

[0056] The device is provided with a cleaning mechanism 200 for collecting materials in two zones at the bottom of the gap between the conventional control chassis 110 and the truss 120, and a reset sealing mechanism 300 is provided on the top of the main guard plate 250 and the auxiliary guard plate 260, and a pressure-bearing dirt cleaning mechanism 400 is provided in the reset sealing mechanism 300. In conjunction with the top plate 140 and two sets of door panel mechanisms 500, a safe and stable sealed environment can be formed in the gap between the control chassis 110 and the truss 120. At this time, the sealed environment is connected with the two zones in the cleaning mechanism 200 through the gap between the material guide baffle 460 and the scraper 371.

[0057] When the hydraulic component 430 is running, its internal hydraulic sub-rod will control the chuck 440 and the two support frames 450 to run and extend, and finally cooperate with the two pull rods 540 to pull the two safety outer frame plates 510 to rise and fall at a uniform speed. At the same time, the scraper 371 arranged on the inner side of the safety outer frame plate 510 can quickly scrape off the granular impurities accumulated on the inner side of the transparent window plate 530, and use the two brush rollers 373 to squeeze the inner sides of the safety outer frame plate 510 and the transparent window plate 530, and use the injection component 380 to flow the cleaning liquid, disinfectant and hot steam to the inner sides of the safety outer frame plate 510 and the transparent window plate 530, so that the safety outer frame plate 510 and the transparent window plate 530 with impurities scraped off can be fully cleaned. At this time, the granular impurities can be transferred and stored in the two partitions in the cleaning mechanism 200 along the gap between the scraper 371 and the material guide baffle 460, and the above-mentioned cleaning solution will also be stored in the partitions, thereby greatly reducing the difficulty of manual cleaning. Embodiment 2:

[0058] Combination Figure 4-Figure 9 As shown, on the basis of Example 1, a vertical groove 320 is opened on the inner side of the pressure pad 310, and there are two vertical grooves 320, and the material guide baffle 460 is movably installed in the two vertical grooves 320;

[0059] The inner sides of the two pressure-bearing pads 310 are provided with pad feet 340, two limit rods 350 fixedly installed on the top of the pad feet 340, and springs 360 arranged outside the limit rods 350;

[0060] Columnar gaskets are installed on the guide rods at both ends of the material guide baffle 460, and tension springs 470 are arranged on the tops of the columnar gaskets;

[0061] A partition is fixedly installed in the middle of the inner side of the protective vertical plate 330, and the partition is adapted to fit on the outer side of the safety outer frame plate 510;

[0062] A slot for guiding the material guide baffle 460 to rise and fall is provided on the inner side of the protective vertical plate 330 near the bottom plate 410;

[0063] Two rectangular pins are arranged at both ends of the top of the safety outer frame plate 510, and vertical holes adapted to be constrained by the limiting rod 350 are opened inside the two rectangular pins, and the top end of the spring 360 is pressed against the bottom of the rectangular pins.

[0064] By installing the protective vertical plate 330 on the top of the pressure pad 310 and fixing two horizontal feet 340 on the inner sides of the two pressure pads 310, the two feet 340 can cooperate with the two ends of the bottom plate 410 to provide a rectangular gap with sufficient pressure resistance for the two groups of scraping components 370, and the material guide baffle 460 movably installed in the rectangular gap can rise with the descent of the safety outer frame plate 510, and finally the rising material guide baffle 460 can cooperate with the groove on the outer side of the scraper 371 to uniformly guide the scraped impurity particles, and the guided impurity particles can be stored toward the inner side of the main guard plate 250 and the auxiliary guard plate 260.

[0065] The above-mentioned foot 340 and the two limit rods 350 installed on the foot 340 can provide sufficient compressive support and restraint force for the lifting and lowering of the safety outer frame plate 510, and at the same time can provide support force for the scraper 371 to scrape away impurities. Embodiment three:

[0066] Combination Figure 1-Figure 3 As shown, based on Example 1, one of the sealing doors 270 is movably installed in the window outside the main guard plate 250, and the other sealing door 270 is movably installed in the window of the auxiliary guard plate 260;

[0067] The control chassis 110 is fixedly mounted on the top of the second cushion block 220;

[0068] The truss 120 is fixedly mounted on the top of the first cushion block 210 .

[0069] By fixing the control box 110 on the top of the second pad 220 and fixing the truss 120 on the top of the first pad 210, the four groups of cabinets 130 installed between the control box 110 and the truss 120 can be suspended directly above the main guard plate 250 and the auxiliary guard plate 260. At this time, the two partitions formed by the first bottom plate 230, the main guard plate 250 and the second bottom plate 240, and the auxiliary guard plate 260 can provide drawers for safe storage of scraped and fallen foreign particles and cleaning liquid. The two sealing doors 270 movably connected to the main guard plate 250 and the auxiliary guard plate 260 by hinges can be opened for quick manual cleaning, thereby reducing the difficulty of manual cleaning. Embodiment 4:

[0070] Combination Figure 4-Figure 9 As shown, in the above embodiment, the tether 480 is adapted to penetrate into the interior of the wire tube 280, and the end of the tether 480 that penetrates to the outside of the wire tube 280 is connected to the end 520;

[0071] A trapezoidal blade is formed on the top of the scraper 371, and a slot for guiding foreign particles is formed on one side of the scraper 371 close to the guide baffle 460;

[0072] The nozzle 374 is made of replaceable sponge;

[0073] Multiple nozzles 374 are adapted to be installed in multiple ports inside the liquid injection piece 380.

[0074] By connecting the tension spring 470 to the cylindrical gaskets at the bottom of the rod body at both ends of the material guide baffle 460, and the top end of the tension spring 470 is under pressure and connected to the bottom of the bottom plate 410, as the safety outer frame plate 510 descends, the relaxed bolt rope 480 will lose the traction force on the material guide baffle 460, and the tension spring 470 in the stretched state can shrink quickly at this time, and then the shrinkage of the two tension springs 470 will push the material guide baffle 460 to rise quickly, and the impurities scraped off by the top edge of the scraper 371 will fall downward along the inner side of the safety outer frame plate 510 and the transparent window plate 530, and be safely guided along the groove on the outside of the scraper 371 under the guidance of the material guide baffle 460, thereby preventing the fallen impurity particles from entering the top of the bottom plate 410 and interfering with the molded injection molded parts.

[0075] The working principle and use process of the present invention: In the initial state of the device, the two sets of door panel mechanisms 500 are pulled downward and extended, at which time the reserved gap between the control box 110 and the truss 120 will be exposed to the outside world. At this time, the gap formed by the four sets of cabinets 130 can facilitate workers to prepare for injection molding workpieces.

[0076] Before the device is in operation, the hydraulic component 430 is operated in advance. At this time, the hydraulic sub-rod in the hydraulic component 430 will cooperate with the clamp 440 to pull the two brackets 450 to extend upward. At this time, the two ends of the two brackets 450 close to the hydraulic component 430 are fixed at the two ends of the clamp 440. As the two brackets 450 rise at the same speed, the two pull rods 540 movably installed at the outer ends of the two brackets 450 will simultaneously pull the two sets of safety outer frame plates 510 and transparent window plates 530 to lift upward. At this time, the inner end surfaces of the safety outer frame plates 510 and the transparent window plates 530 will move upward at a uniform speed along the knife edge at the top of the scraper 371. Lifted, the inner end surfaces of the safety outer frame plate 510 and the transparent window plate 530 can pass through two brush rollers 373 and be cleaned by the hot flow sprayed by the injection part 380 and multiple nozzles 374. At this time, the inner end surfaces of the safety outer frame plate 510 and the transparent window plate 530 can be kept in a clean state and reset to the gap between the control box 110 and the truss 120 until the top ends of the two safety outer frame plates 510 are attached to the bottom of the top plate 140, and the two safety outer frame plates 510 and the two transparent window plates 530 can cooperate with the top plate 140 and the pressure pad 310 to provide sealing protection for the gaps between the four groups of cabinets 130.

[0077] When the injection molding component extends into the sealed environment along the horizontal hole in the middle of the control box 110 until the injection molding of the workpiece is completed, the hydraulic sub-rod in the hydraulic component 430 extends downward, and the above-mentioned linkage component falls downward, and the granular impurities splashed and attached to the inner end surfaces of the safety outer frame plate 510 and the transparent window plate 530 can be scraped off by the blade at the top of the scraper 371. At the same time, the loose bolt rope 480 will cause the material guide baffle 460 to lift upward under the tensile action of the tension spring 470, and the material guide baffle 460 can be lifted upward along the groove on the outer side of the scraper 371. , and the impurity particles scraped off from the top edge of the scraper 371 can fall through the gap between it and the material guide baffle 460, and the impurity particles that finally fall will be gathered into the drawer formed by the main guard plate 250, the first bottom plate 230, the auxiliary guard plate 260 and the second bottom plate 240, and the liquid injection part 380 can inject hot steam flow or detergent according to the cleaning requirements of the inner end surfaces of the safety outer frame plate 510 and the transparent window plate 530, and the inner end surfaces of the safety outer frame plate 510 and the transparent window plate 530 are quickly cleaned under the action of the rolling brushes of the two brush rollers 373.

[0078] Although the 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 claims and their equivalents.

Claims

1. A safety door for an injection molding machine, comprising an injection molding mechanism (100), characterized in that: It also includes a cleaning mechanism (200) installed at the bottom of the injection molding mechanism (100), a dirt-cleaning mechanism (400) installed on the cleaning mechanism (200) and located inside the injection molding mechanism (100), a reset sealing mechanism (300) installed inside the injection molding mechanism (100) and arranged outside the dirt-cleaning mechanism (400), and two sets of door panel mechanisms (500) arranged inside the injection molding mechanism (100); The injection molding mechanism (100) is used to push the hot melt material to solidify and shape it; The material clearing mechanism (200) comprises a first bottom plate (230) and a second bottom plate (240), a main guard plate (250) installed on the top of the first bottom plate (230), a secondary guard plate (260) installed on the top of the second bottom plate (240), and four wire tubes (280); The resetting sealing mechanism (300) comprises two pressure-bearing pads (310) mounted on the top of the main guard plate (250) and the auxiliary guard plate (260), two protective vertical plates (330) mounted on the two pressure-bearing pads (310), a scraping assembly (370) mounted on the inner sides of the two pressure-bearing pads (310), and a liquid injection piece (380) arranged on the scraping assembly (370); The dirt accumulation face cleaning mechanism (400) comprises a bottom plate (410) installed between two pressure-bearing pads (310), two material guide baffles (460) arranged at both ends of the bottom plate (410), and a tether (480) connected to the bottom of the material guide baffle (460); The door panel mechanism (500) comprises a safety outer frame plate (510) arranged outside the material guide baffle (460) and a transparent window plate (530) installed inside the safety outer frame plate (510); The inner side of the pressure bearing pad (310) is provided with a vertical groove (320), and there are two vertical grooves (320), and the material guide baffle (460) is movably installed in the two vertical grooves (320); The inner sides of the two pressure-bearing pads (310) are provided with pad feet (340), two limit rods (350) fixedly mounted on the tops of the pad feet (340), and springs (360) arranged outside the limit rods (350); The dirt-removing face-cleaning mechanism (400) further comprises a beam plate (420) mounted at the bottom of the base plate (410), a hydraulic component (430) mounted inside the beam plate (420), a clamp (440) mounted at the bottom end of a hydraulic sub-rod inside the hydraulic component (430), and two support frames (450) mounted at both ends of the clamp (440); Columnar washers are installed on the guide rods at both ends of the material guide baffle (460), and tension springs (470) are arranged on the tops of the columnar washers.

2. A safety door for an injection molding machine according to claim 1, characterized in that: The injection molding mechanism (100) comprises a control box (110) and a truss (120), a top plate (140) installed on the top of the control box (110) and the truss (120), and four sets of cabinets (130) installed between the control box (110) and the truss (120).

3. A safety door for an injection molding machine according to claim 2, characterized in that: The material clearing mechanism (200) further comprises a first cushion block (210) mounted on the top of the first bottom plate (230), a second cushion block (220) mounted on the top of the second bottom plate (240), and two sealing doors (270); One of the sealing doors (270) is movably installed in a window outside the main guard plate (250), and the other sealing door (270) is movably installed in a window of the auxiliary guard plate (260); The control chassis (110) is fixedly mounted on the top of the second cushion block (220); The truss (120) is fixedly mounted on the top of the first cushion block (210).

4. A safety door for an injection molding machine according to claim 1, characterized in that: The door panel mechanism (500) further comprises two end heads (520) fixedly mounted on the top of the safety outer frame plate (510) and a pull rod (540) mounted inside the safety outer frame plate (510); The tether (480) is adapted to penetrate into the interior of the wire tube (280), and the end of the tether (480) that penetrates to the outside of the wire tube (280) is connected to the end (520).

5. A safety door for an injection molding machine according to claim 1, characterized in that: A partition is fixedly mounted in the middle of the inner side of the protective vertical plate (330), and the partition is adapted to fit on the outer side of the safety outer frame plate (510); A slot for guiding the material guide baffle plate (460) to move upward and downward is provided on the inner side of the protective vertical plate (330) close to the bottom plate (410).

6. A safety door for an injection molding machine according to claim 1, characterized in that: The scraping assembly (370) comprises a scraper (371) mounted on the inner side of two pressure-bearing pads (310); the scraper (371) is provided with a groove on the inner side close to the safety outer frame plate (510); two cross bars (372) are mounted in the groove; two brush rollers (373) are movably mounted on the outside of the two cross bars (372); and a plurality of spray pipes (374) are mounted on the scraper (371); The plurality of nozzles (374) are adapted to be installed in the plurality of ports inside the liquid injection member (380).

7. A safety door for an injection molding machine according to claim 6, characterized in that: The top of the scraper (371) is provided with a trapezoidal blade, and a groove for guiding foreign particles is provided on a side of the scraper (371) close to the material guide baffle (460); The nozzle (374) is made of replaceable sponge.

8. The safety door for an injection molding machine according to claim 1, characterized in that: Two rectangular pins are arranged at both ends of the top of the safety outer frame plate (510), and vertical holes adapted to be constrained by the limit rod (350) are opened inside the two rectangular pins, while the top end of the spring (360) is pressed against the bottom of the rectangular pins.

Images