Injection molding equipment and method for producing electric cover plates

Abstract

The present invention relates to the field of injection molding equipment, specifically an injection molding equipment for the production of electric cover plates and a method of use, comprising an injection molding machine bracket, the inner bottom surface of the injection molding machine bracket is fixedly connected to a transmission motor, the rotating end of the transmission motor is fixedly connected to a turntable, both sides of the inner wall of the injection molding machine bracket are fixedly connected to slide bars, the middle of the slide bars is slidably connected to a support tube, and an adjustment mechanism is movably connected between the surfaces of the two support tubes and the top of the turntable. This injection molding equipment for the production of electric cover plates is composed of an adjustment mechanism and a material discharge switching mechanism; through the coordinated use of components such as the injection molding machine bracket, the feeding dragon pipe and the adjustment mechanism, during the operation of the adjustment mechanism, the cover plate concave mold and the cover plate convex mold at the front and rear sides of the injection molding machine bracket are staggered to cooperate with the feeding dragon pipe for injection molding, and this staggered injection molding method can achieve continuous injection molding production and improve work efficiency.

Description

Technical Field

[0001] The present invention relates to the field of injection molding equipment, and in particular to an injection molding equipment for producing electric cover plates and a use method thereof. Background Art

[0002] Power covers are widely used in power facilities for laying cable trenches in power transmission lines, substations, power plants and other environments. Power covers are usually injection molded with corrosion-resistant composite resin materials and require special injection molding equipment for production and processing.

[0003] An existing patent (publication number: CN118219489B) discloses a rapid injection molding device for injection molded products, comprising a machine body and a glue injection device, with a feed device fixedly mounted on the top of the machine body. During the implementation of this solution, the inventors discovered that the following problems in the prior art had not been adequately addressed: 1. During use of the injection molding machine, the production of the next injection molded part must begin after the previous one has been disassembled, resulting in low work efficiency; 2. The glue injection port of the injection molding machine is typically far from the glue injection dragon rod. After stopping injection molding, a large amount of injection molding material will adhere to the glue injection port, which is prone to solidification. During use of the injection molding machine, the glue injection port can only be sealed with a sealing block, making it difficult to discharge the excess material at the glue injection port, thereby reducing the occurrence of injection molding material solidification, thereby affecting the quality of subsequent injection molding production. Summary of the Invention

[0004] The purpose of the present invention is to provide an injection molding device and method for use in the production of electric cover plates, in order to solve the problems raised in the above-mentioned background technology: 1. The low operating efficiency of some existing injection molding devices; 2. The difficulty of some existing injection molding devices in discharging excess material at the injection port when stopping injection molding. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: An injection molding device for the production of electric cover plates includes an injection molding machine bracket, the inner bottom surface of the injection molding machine bracket is fixedly connected to a transmission motor, and the rotating end of the transmission motor is fixedly connected to a turntable;

[0005] Slide rods are fixedly connected to both sides of the inner wall of the injection molding machine bracket, a support tube is slidably connected to the middle of the slide rods, and an adjustment mechanism is movably connected between the surfaces of the two support tubes and the top of the turntable;

[0006] The surface of the support tube is symmetrically fixedly connected with a connecting ring frame, a cover plate die is fixedly connected between two opposite connecting ring frames, and a cover plate convex mold is movably connected to one side of the cover plate die;

[0007] A material delivery dragon pipe is fixedly connected to the right side of the inner wall of the injection molding machine bracket, and the material delivery dragon pipe is arranged between the two cover plate convex molds. A discharge switching mechanism is provided at the left end of the material delivery dragon pipe, and the two ends of the discharge switching mechanism correspond one to one with the two cover plate convex molds. A Y-shaped discharge plate that cooperates with the discharge switching mechanism is fixedly connected to the left side of the injection molding machine bracket;

[0008] Guide rods are symmetrically fixedly connected to both sides of the cover plate punch, and guide blocks are symmetrically fixedly connected to both sides of the cover plate die. The guide rods are movably inserted in the middle of the corresponding guide blocks, and the middle of the guide rods is movably sleeved with a guide spring that cooperates with the guide rods.

[0009] Preferably, the adjustment mechanism includes an adjustment pin, and the adjustment pin is eccentrically mounted on the top of the turntable;

[0010] The middle parts of the two support tubes are slidably connected to support rings, and an adjustment plate is fixedly connected between the bottoms of the two support rings. An adjustment groove is opened in the middle of the adjustment plate, and the adjustment plate is slidably connected to the surface of the adjustment pin through the adjustment groove;

[0011] Limiting rings cooperating with the supporting ring are symmetrically fixedly connected to both sides of the supporting tube, and the two limiting rings are arranged between the two connecting ring frames on the same side.

[0012] Preferably, the distance that the support tube slides on the surface of the slide rod is set to twice the distance from the axis of the adjusting pin to the axis of the turntable.

[0013] Preferably, the discharge switching mechanism includes a discharge trough, and there are two discharge troughs, the two discharge troughs are symmetrically opened at the left end of the conveying dragon pipe, the inner wall of the discharge trough is fixedly connected with four pads at equal intervals along the circumference, the surface of the pad is slidably connected with a pad rod, a cleaning ring is fixedly connected between one ends of the four pad rods, the cleaning ring is arranged inside the discharge trough, the middle part of the pad rod is movably sleeved with a return spring that cooperates with the cleaning ring, a sealing cone block is fixedly connected between the other ends of the four pad rods, and the sealing cone block is arranged at the port position of the discharge trough;

[0014] The two discharging troughs are symmetrically and fixedly connected to a cross bar at one end opposite to the other, and a cone sleeve is slidably connected between the two adjacent cross bars. The surface of the cross bar is movably sleeved with a compression spring that cooperates with the cone sleeve. The inside of the cone sleeve is fixedly connected to a glue injection tube, and one end of the glue injection tube is symmetrically and fixedly connected to a pressure rod that cooperates with the cleaning ring.

[0015] The inner wall of the discharge trough is fixedly connected to a T-shaped connecting rod, one end of the T-shaped connecting rod is fixedly connected to a movable sleeve, the movable sleeve is movably inserted into the interior of the adjacent glue injection tube, a movable groove is provided inside the movable sleeve, the inner wall of the movable groove is fixedly connected to an extrusion spring, one end of the extrusion spring is fixedly connected to an extrusion rod, one end of the extrusion rod is movably inserted into the surface of the movable sleeve, and the end of the glue injection tube away from the discharge trough is fixedly connected to a stopper that cooperates with the extrusion rod;

[0016] The surface of the extruded rod is fixedly connected with a rectangular plate, and the rectangular plates are provided in eight configurations. The eight rectangular plates are fixedly connected to the surface of the extruded rod at equal intervals along the circumference, and each four rectangular plates are provided in a group. The two groups of rectangular plates are staggered. A waist-shaped groove is provided in the middle of the rectangular plate. A sliding pin is slidably connected to the inside of the waist-shaped groove. A U-shaped scraper is fixedly connected between the two ends of the sliding pin. The U-shaped scraper is movably inserted into the surface of the injection tube.

[0017] The side wall of the cover plate convex mold is fixedly connected with a docking sleeve that matches the glue injection tube.

[0018] Preferably, one end of the U-shaped scraper away from the glue injection tube is set as an arc surface, two adjacent U-shaped scrapers are overlapped and arranged, and the surface of the U-shaped scraper is chamfered.

[0019] Preferably, the cross bar is T-shaped, and a recessed groove matching the cross bar is provided on the surface of the cover plate punch.

[0020] Preferably, the four sides of the cover plate concave mold are fixedly connected with positioning pin sleeves, and the four sides of the cover plate convex mold are fixedly connected with positioning pin shafts, and the four positioning pin shafts correspond to the four positioning pin sleeves one by one;

[0021] Discharge chutes are provided on both the front and rear sides of the injection molding machine bracket, and the two discharge chutes correspond to the two cover plate concave molds one by one.

[0022] A method for using an injection molding device for producing an electric cover plate comprises the following steps:

[0023] When S1 is used, the transmission motor is first started to rotate the turntable and the adjusting pin. At this time, the adjusting pin and the adjusting plate cooperate to slide, and the adjusting plate drives the supporting ring to move back and forth on the surface of the supporting tube. When the supporting ring moves forward to the limit position, the supporting ring will press against the limiting ring at the front side of the supporting tube and drive the supporting tube to move forward on the surface of the sliding rod. Conversely, when the supporting ring moves backward to the limit position, the supporting ring will press against the limiting ring at the rear side of the supporting tube and drive the supporting tube to move backward on the surface of the sliding rod. In this way, during the reciprocating movement of the two supporting tubes, the supporting tube drives the corresponding connecting ring frame, the cover plate concave mold and the cover plate punch to move synchronously.

[0024] S2. During the forward movement of the support tube, the cover plate die on the front side of the support tube moves forward synchronously with the cover plate punch through the guide rod. At the same time, under the action of the guide spring, the cover plate punch and the cover plate die are gradually separated to realize the mold opening action. At this time, the docking sleeve on the cover plate punch releases the pressure on the injection tube. Under the elastic recovery of the compression spring, the injection tube moves toward the side wall of the cover plate punch. At this time, the pressure rod on the injection tube releases the contact with the cleaning ring on the inner wall of the adjacent discharge trough, so that the cleaning ring moves toward the outside of the discharge trough under the action of the return spring. Then the cleaning ring cooperates with the pad rod to move the sealing cone block to the port position of the discharge trough to seal the discharge trough. At the same time, the moving cleaning ring scrapes the inner wall of the discharge trough to reduce the injection molding material adhering to the inner wall of the discharge trough.

[0025] S3. During the forward movement of the injection tube at the front side of the injection molding machine bracket, the movable sleeve inside the injection tube is restricted to the outlet position of the discharge trough by the T-shaped connecting rod. After the injection tube moves forward, the block on the injection tube releases the pressure on the extrusion rod inside the movable sleeve. Under the elastic recovery of the extrusion spring, the extrusion rod moves inside the movable trough with the rectangular plate. At this time, the waist groove on the rectangular plate cooperates with the sliding pin on the U-shaped scraper to slide. Then the U-shaped scraper moves along the side wall of the movable sleeve toward the inner wall of the injection tube, so that the eight U-shaped scrapers form a ring and are attached to the inner wall of the injection tube. As the injection tube moves, the eight scrapers scrape off the injection molding material remaining on the inner wall of the injection tube, and the scraped injection molding material falls into the position of the Y-shaped discharge plate for discharge.

[0026] S4. At the same time, the cover plate die installed on the rear side of the support tube through the connecting ring frame moves forward and moves toward the feeding dragon pipe with the cover plate punch. At this time, the cover plate die and the cover plate punch at the rear of the injection molding machine bracket are combined and move with the docking sleeve and the adjacent injection tube to the discharge trough position of the side wall of the feeding dragon pipe, so that one end of the injection tube is plugged into and sealed with the corresponding discharge trough, and the other end of the injection tube is sealed with the docking sleeve on the corresponding cover plate punch. In this process, the cleaning ring inside the discharge trough is pressed and moved by the pressure rod at the end of the injection tube, so that the cleaning ring is released from the sealing state with the discharge trough through the pad rod and the sealing cone block. At the same time, the stop block on the injection tube is pressed against the extrusion rod position on the surface of the corresponding movable sleeve, so that the rectangular plate on the extrusion rod slides with the U-shaped scraper, and the U-shaped scraper moves toward the side wall of the movable sleeve, so that the inside of the injection tube is completely penetrated for injection molding, so that the two molds before and after the injection molding machine bracket can perform continuous power cover injection molding production by staggered manner.

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

[0028] In the present invention, through the coordinated use of components such as the injection molding machine bracket, the material delivery dragon pipe and the adjustment mechanism, during the operation of the adjustment mechanism, the cover plate concave mold and the cover plate punch at the front and rear sides of the injection molding machine bracket are staggered to cooperate with the material delivery dragon pipe for injection molding. This staggered injection molding method can achieve continuous injection molding production and improve work efficiency.

[0029] In the present invention, by cooperating with components such as the material conveying dragon pipe, the adjustment mechanism and the discharge switching mechanism, during the mold opening operation of the cover plate concave mold and the corresponding cover plate punch, the excess injection molding material on the inner wall of the discharge trough and the injection pipe can be discharged under the operation of the discharge switching mechanism, thereby reducing the occurrence of solidification of the injection molding material inside the injection pipe and improving the quality of subsequent injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A side view of the position of the injection molding machine bracket and the material delivery dragon pipe of the present invention;

[0031] Figure 2 A top cross-sectional view of a local position of the turntable and the adjustment plate of the present invention;

[0032] Figure 3 A three-dimensional diagram of the partial positions of the support tube and the support ring of the present invention;

[0033] Figure 4 A top cross-sectional view of the cover plate punch and the local position of the material conveying dragon pipe of the present invention;

[0034] Figure 5 For the present invention Figure 4 A magnified view of the structure at center A;

[0035] Figure 6 It is a cross-sectional view of a partial position of the material delivery dragon pipe and the glue injection pipe of the present invention;

[0036] Figure 7 It is a cross-sectional view of a local position of the movable sleeve and the extrusion rod of the present invention;

[0037] Figure 8 It is a side sectional view of the transmission motor and the local position of the turntable of the present invention;

[0038] Figure 9 It is a side view of the partial position of the U-shaped scraper and the rectangular plate of the present invention;

[0039] Figure 10 A perspective view of a Y-shaped stripper plate according to the present invention;

[0040] Figure 11 It is a side view of the partial position of the pad rod and the cleaning ring of the present invention.

[0041] In the figure: 1. Injection molding machine bracket; 2. Drive motor; 3. Turntable; 4. Slide rod; 5. Support tube; 6. Adjustment mechanism; 601. Adjustment pin; 602. Support ring; 603. Adjustment plate; 604. Adjustment slot; 605. Limiting ring; 7. Connecting ring frame; 8. Cover plate die; 9. Cover plate punch; 10. Feeding dragon pipe; 11. Discharge switching mechanism; 1101. Discharge chute; 1102. Spacer block; 1103. Spacer rod; 1104. Cleaning ring; 1105. Return spring; 1106. Sealing cone block; 1107. Crossbar; 1108. Conical sleeve; 1109. Compression spring; 1110. Glue injection tube; 1111. Pressure rod; 1112. T-type connecting rod; 1113. Movable sleeve; 1114. Movable groove; 1115. Extrusion spring; 1116. Extrusion rod; 1117. Stop block; 1118. Rectangular plate; 1119. Waist-shaped groove; 1120. Sliding pin; 1121. U-shaped scraper; 1122. Docking sleeve; 12. Y-type unloading plate; 13. Guide rod; 14. Guide block; 15. Guide spring. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] See also Figures 1 to 11 The present invention provides a technical solution: an injection molding machine for producing electric cover plates, comprising an injection molding machine bracket 1, a transmission motor 2 fixedly connected to the inner bottom surface of the injection molding machine bracket 1, and a turntable 3 fixedly connected to the rotating end of the transmission motor 2. It should be noted that the inner bottom surface of the injection molding machine bracket 1 is formed with a groove, and the transmission motor 2 is fixedly connected within the groove.

[0044] Slide rods 4 are fixedly connected to both sides of the inner wall of the injection molding machine bracket 1. A support tube 5 is slidably connected to the middle of the slide rods 4. An adjustment mechanism 6 is movably connected between the surfaces of the two support tubes 5 and the top of the turntable 3. It should be noted that mounting blocks are fixedly connected to both ends of the slide rods 4, and the slide rods 4 are fixedly connected to the interior of the injection molding machine bracket 1 via the mounting blocks.

[0045] The surface of the support tube 5 is symmetrically fixedly connected with connecting ring frames 7 , a cover plate die 8 is fixedly connected between two opposite connecting ring frames 7 , and a cover plate punch 9 is movably connected to one side of the cover plate die 8 .

[0046] The right side of the inner wall of the injection molding machine bracket 1 is fixedly connected with a feeding dragon pipe 10, which is arranged between the two cover plate punches 9. The left end of the feeding dragon pipe 10 is provided with a discharge switching mechanism 11. The two ends of the discharge switching mechanism 11 correspond one to one with the two cover plate punches 9. The left side of the injection molding machine bracket 1 is fixedly connected with a Y-shaped discharge plate 12 that cooperates with the discharge switching mechanism 11. It should be noted that: when the discharge switching mechanism 11 discharges the excess injection molding material, the excess injection molding material will fall into the interior of the Y-shaped discharge plate 12 and then be discharged. The Y-shaped discharge plate 12 is arranged above the support tube 5 to avoid interference.

[0047] Guide rods 13 are symmetrically fixedly connected to both sides of the cover plate punch 9, and guide blocks 14 are symmetrically fixedly connected to both sides of the cover plate die 8. The guide rods 13 are movably inserted into the middle of the corresponding guide blocks 14. The middle of the guide rods 13 is movably sleeved with guide springs 15 that cooperate with the guide rods 13. It should be noted that the cooperation of the guide rods 13, guide blocks 14, and guide springs 15 facilitates the mold opening operation of the cover plate punch 9 and the cover plate die 8. The unloading operation after mold opening is conventional technology and will not be described in detail here.

[0048] In this embodiment, Figures 1 to 11 As shown, the adjustment mechanism 6 includes an adjustment pin 601 , which is eccentrically mounted on the top of the turntable 3 .

[0049] A support ring 602 is slidably connected to the middle of each of the two support tubes 5. An adjustment plate 603 is fixedly connected between the bottoms of the two support rings 602. An adjustment slot 604 is defined in the middle of the adjustment plate 603, through which the adjustment plate 603 is slidably connected to the surface of the adjustment pin 601. It should be noted that when the turntable 3 rotates with the eccentrically positioned adjustment pin 601, the adjustment slot 604 on the adjustment plate 603 slides in conjunction with the adjustment pin 601, causing the adjustment plate 603, along with the support ring 602, to slide back and forth across the surface of the support tube 5.

[0050] Limiting rings 605 that match the supporting ring 602 are symmetrically fixedly connected to both sides of the supporting tube 5 , and the two limiting rings 605 are arranged between the two connecting ring frames 7 on the same side.

[0051] In this embodiment, Figures 1 to 11 As shown, the distance that the support tube 5 slides on the surface of the slide bar 4 is set to twice the distance from the axis of the adjustment pin 601 to the axis of the turntable 3. It should be noted that when the turntable 3 rotates one circle with the adjustment pin 601, the support tube 5 can slide back and forth once on the surface of the slide bar 4. During this reciprocating sliding process, the connecting ring frame 7 on the support tube 5 moves the corresponding cover plate punch 9, so that the two cover plate punches 9 at the front and rear positions on the injection molding machine bracket 1 can alternately cooperate with the discharge switching mechanism 11 on the material feeding dragon pipe 10 to perform injection molding, thereby realizing continuous injection molding operations.

[0052] In this embodiment, Figures 1 to 11 As shown, the discharge switching mechanism 11 includes a discharge trough 1101, and there are two discharge troughs 1101. The two discharge troughs 1101 are symmetrically opened at the left end of the conveying dragon pipe 10. The inner wall of the discharge trough 1101 is fixedly connected with four pads 1102 at equal intervals along the circumference. The surface of the pad 1102 is slidably connected with a pad rod 1103. A cleaning ring 1104 is fixedly connected between one ends of the four pad rods 1103. The cleaning ring 1104 is arranged inside the discharge trough 1101. The middle part of the pad rod 1103 is movably sleeved with a return spring 1105 that cooperates with the cleaning ring 1104. A sealing cone block 1106 is fixedly connected between the other ends of the four pad rods 1103. The sealing cone block 1106 is arranged at the port position of the discharge trough 1101. It should be noted that: the discharge trough 1101 is located at one end of the dragon tube and is provided with a conical chamfer that cooperates with the sealing cone block 1106; when the surface of the cleaning ring 1104 is released from the pressure state, under the action of the return spring 1105, the pad rod carries the cleaning ring 1104 to move inside the discharge trough 1101 to clean the inner wall of the discharge trough 1101, and at the same time the pad rod 1103 carries the sealing cone block 1106 to cooperate with the conical chamfer position of the discharge trough 1101 for sealing.

[0053] The two discharge troughs 1101 are symmetrically fixedly connected to the opposite ends of the cross bars 1107, and a conical sleeve 1108 is slidably connected between the two adjacent cross bars 1107. The surface of the cross bar 1107 is movably sleeved with a compression spring 1109 that cooperates with the conical sleeve 1108. The inside of the conical sleeve 1108 is fixedly connected to a glue injection tube 1110, and one end of the glue injection tube 1110 is symmetrically fixedly connected to a pressure rod 1111 that cooperates with the cleaning ring 1104. It should be noted that: the inner wall of the discharge trough 1101 away from the end inside the conveying dragon pipe 10 is set to be conical and matched with the cone sleeve 1108; the length of the pressure rod 1111 is set to 0.8 times the length of the discharge trough 1101. When the injection tube 1110 moves toward the discharge trough 1101 and seals with the discharge trough 1101, the pressure rod 1111 will press on the surface of the cleaning ring 1104 inside the discharge trough 1101, so that the cleaning ring 1104 moves with the pad rod 1103 and the sealing cone block 1106. At this time, the sealing cone block 1106 releases the seal on the discharge trough 1101.

[0054] The inner wall of the discharge trough 1101 is fixedly connected with a T-shaped connecting rod 1112, one end of the T-shaped connecting rod 1112 is fixedly connected with a movable sleeve 1113, the movable sleeve 1113 is movably inserted into the interior of the adjacent injection tube 1110, a movable groove 1114 is provided inside the movable sleeve 1113, the inner wall of the movable groove 1114 is fixedly connected with an extrusion spring 1115, one end of the extrusion spring 1115 is fixedly connected with an extrusion rod 1116, one end of the extrusion rod 1116 is movably inserted into the surface of the movable sleeve 1113, and the end of the injection tube 1110 away from the discharge trough 1101 is fixedly connected with a stopper 1117 that cooperates with the extrusion rod 1116.

[0055] A rectangular plate 1118 is fixedly connected to the surface of the extrusion rod 1116. There are eight rectangular plates 1118, and the eight rectangular plates 1118 are fixedly connected to the surface of the extrusion rod 1116 at equal intervals along the circumference. Every four rectangular plates 1118 are set as a group, and the two groups of rectangular plates 1118 are staggered. A waist-shaped groove 1119 is opened in the middle of the rectangular plate 1118, and a sliding pin 1120 is slidably connected to the inside of the waist-shaped groove 1119. A U-shaped scraper 1121 is fixedly connected between the two ends of the sliding pin 1120, and the U-shaped scraper 1121 is movably inserted into the surface of the injection tube 1110. It should be noted that: when the glue injection tube 1110 moves toward the corresponding discharge trough 1101, the stop block 1117 will press against the end of the extrusion rod 1116 on the surface of the movable sleeve 1113. At this time, the extrusion rod 1116 moves with the rectangular plate 1118. During the sliding process of the waist-shaped groove 1119 and the sliding pin 1120, the U-shaped scraper 1121 extends from the inside of the movable sleeve 1113, and the U-shaped scraper 1121 cleans the inside of the glue injection tube 1110 during the movement.

[0056] The side wall of the cover plate punch 9 is fixedly connected to a docking sleeve 1122 that mates with the glue injection tube 1110. It should be noted that the interior of the docking sleeve 1122 is configured as a tapered surface, and the end of the glue injection tube 1110 is configured as a tapered shape that mates with the docking sleeve 1122. A sealing gasket is provided at the location of the tapered surface to ensure a tight seal between the cover plate punch 9 and the glue injection sleeve.

[0057] In this embodiment, Figures 1 to 11 As shown, the end of the U-shaped scraper 1121 away from the injection tube 1110 is configured as an arc surface, and two adjacent U-shaped scrapers 1121 are overlapped, and the surfaces of the U-shaped scrapers 1121 are chamfered. It should be noted that this overlapping arrangement enables the eight U-shaped scrapers 1121 to form a ring and fit the inner wall of the injection tube 1110.

[0058] In this embodiment, Figures 1 to 11As shown, the crossbar 1107 is set to T-shaped, and the surface of the cover plate punch 9 is provided with a recessed groove that matches the crossbar 1107. It should be noted that the recessed groove is provided to avoid interference between the cover plate punch 9 and the end of the crossbar 1107 during the injection molding process.

[0059] In this embodiment, Figures 1 to 11 As shown, the cover plate concave mold 8 is fixedly connected with positioning pin sleeves on all four sides, and the cover plate punch 9 is fixedly connected with positioning pin shafts on all four sides, and the four positioning pin shafts correspond to the four positioning pin sleeves one by one.

[0060] The front and rear sides of the injection molding machine bracket 1 are both provided with a discharge chute, and the two discharge chute correspond to the two cover plate concave molds 8. It should be noted that the discharge chute is provided to facilitate the unloading operation after the mold is opened.

[0061] In this embodiment, Figures 1 to 11 As shown, a method for using an injection molding device for producing an electric cover plate includes the following steps:

[0062] When the two support tubes 5 move back and forth, the corresponding connecting ring frame 7, the cover plate concave mold 8 and the cover plate punch 9 are moved synchronously;

[0063] S2. During the forward movement of the support tube 5, the cover plate die 8 on the front side of the support tube 5 moves forward synchronously with the cover plate punch 9 through the guide rod 13. At the same time, under the action of the guide spring 15, the cover plate punch 9 and the cover plate die 8 gradually separate to realize the mold opening action. At this time, the docking sleeve 1122 on the cover plate punch 9 releases the pressure on the injection tube 1110. Under the elastic recovery of the compression spring 1109, the injection tube 1110 moves toward the side wall of the cover plate punch 9. At this time, the pressure rod 1111 on the injection tube 1110 The contact of the cleaning ring 1104 with the inner wall of the adjacent discharge trough 1101 is released, and the cleaning ring 1104 moves toward the outside of the discharge trough 1101 under the action of the return spring 1105. Then, the cleaning ring 1104 cooperates with the pad rod 1103 and moves the sealing cone block 1106 to the end position of the discharge trough 1101 to seal the discharge trough 1101. At the same time, the moving cleaning ring 1104 scrapes the inner wall of the discharge trough 1101 to reduce the injection molding material adhering to the inner wall of the discharge trough 1101.

[0064] S3. When the glue injection tube 1110 at the front side of the injection molding machine bracket 1 moves forward, the movable sleeve 1113 inside the glue injection tube 1110 is restricted at the outlet position of the discharge trough 1101 by the T-shaped connecting rod 1112. After the glue injection tube 1110 moves forward, the stopper 1117 on the glue injection tube 1110 releases the pressure on the extrusion rod 1116 inside the movable sleeve 1113. Under the elastic recovery of the extrusion spring 1115, the extrusion rod 1116 moves with the rectangular plate 1118 inside the movable groove 1114. At this time, the waist groove 1119 on the rectangular plate 1118 cooperates with the sliding pin 1120 on the U-shaped scraper 1121 to slide, and then the U-shaped scraper 1121 moves along the side wall of the movable sleeve 1113 toward the inner wall of the injection tube 1110, so that the eight U-shaped scrapers 1121 form a ring shape and are attached to the inner wall of the injection tube 1110. As the injection tube 1110 moves, the eight scrapers scrape off the injection material remaining on the inner wall of the injection tube 1110, and the scraped injection material falls into the position of the Y-shaped discharge plate 12 for discharge;

[0065] S4. At the same time, the cover plate die 8 installed on the rear side of the support tube 5 through the connecting ring frame 7 moves forward and moves with the cover plate punch 9 toward the feeding dragon pipe 10. At this time, the cover plate die 8 and the cover plate punch 9 behind the injection molding machine bracket 1 are molded together and move with the docking sleeve 1122 and the adjacent injection tube 1110 toward the discharge trough 1101 position on the side wall of the feeding dragon pipe 10, so that one end of the injection tube 1110 is plugged and sealed with the corresponding discharge trough 1101, and the other end of the injection tube 1110 is sealed with the docking sleeve 1122 on the corresponding cover plate punch 9. In this process, the cleaning ring 1104 inside the discharge trough 1101 is affected by the injection tube 11 The pressure rod 1111 at the end of 10 is pressed and moved, so that the cleaning ring 1104 releases the sealing state with the discharge trough 1101 through the pad rod 1103 and the sealing cone block 1106, and at the same time, the stop block 1117 on the injection tube 1110 is pressed on the position of the extrusion rod 1116 corresponding to the surface of the movable sleeve 1113, so that the rectangular plate 1118 on the extrusion rod 1116 slides in cooperation with the U-shaped scraper 1121, and the U-shaped scraper 1121 moves toward the side wall of the movable sleeve 1113, so that the interior of the injection tube 1110 is completely penetrated for injection molding processing, so that the front and rear molds of the injection molding machine bracket 1 can perform continuous power cover injection molding production by staggered manner.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding device for producing electric cover plates, comprising an injection molding machine bracket (1), characterized in that: The inner bottom surface of the injection molding machine bracket (1) is fixedly connected to a transmission motor (2), and the rotating end of the transmission motor (2) is fixedly connected to a turntable (3); Slide rods (4) are fixedly connected to both sides of the inner wall of the injection molding machine bracket (1), a support tube (5) is slidably connected to the middle of the slide rod (4), and an adjustment mechanism (6) is movably connected between the surfaces of the two support tubes (5) and the top of the turntable (3); The surface of the support tube (5) is symmetrically fixedly connected with a connecting ring frame (7), a cover plate die (8) is fixedly connected between two opposite connecting ring frames (7), and a cover plate convex mold (9) is movably connected to one side of the cover plate die (8); A feeding dragon pipe (10) is fixedly connected to the right side of the inner wall of the injection molding machine bracket (1), and the feeding dragon pipe (10) is arranged between the two cover plate convex molds (9). A discharge switching mechanism (11) is provided at the left end of the feeding dragon pipe (10), and the two ends of the discharge switching mechanism (11) correspond one to one with the two cover plate convex molds (9). A Y-shaped discharge plate (12) that cooperates with the discharge switching mechanism (11) is fixedly connected to the left side of the injection molding machine bracket (1); Both sides of the cover plate male mold (9) are symmetrically fixedly connected with guide rods (13), and both sides of the cover plate female mold (8) are symmetrically fixedly connected with guide blocks (14), the guide rods (13) are movably inserted in the middle of the corresponding guide blocks (14), and the middle of the guide rods (13) is movably sleeved with a guide spring (15) that cooperates with the guide rods (13); The discharge switching mechanism (11) includes a discharge trough (1101), and the discharge troughs (1101) are provided in two forms. The two discharge troughs (1101) are symmetrically opened at the left end of the conveying dragon pipe (10), and the inner wall of the discharge trough (1101) is fixedly connected with four pads (1102) at equal intervals along the circumference, and the surface of the pads (1102) is slidably connected with pad rods (1103), and one end of the four pad rods (1103) is fixedly connected with a cleaning ring (1104), and the cleaning ring (1104) is arranged inside the discharge trough (1101), and the middle part of the pad rod (1103) is movably sleeved with a return spring (1105) that cooperates with the cleaning ring (1104), and the other ends of the four pad rods (1103) are fixedly connected with a sealing cone block (1106), and the sealing cone block (1106) is arranged at the port position of the discharge trough (1101); The two discharging troughs (1101) are symmetrically and fixedly connected to a cross bar (1107) at opposite ends, a cone sleeve (1108) is slidably connected between the two adjacent cross bars (1107), a compression spring (1109) that cooperates with the cone sleeve (1108) is movably sleeved on the surface of the cross bar (1107), a glue injection tube (1110) is fixedly connected inside the cone sleeve (1108), and one end of the glue injection tube (1110) is symmetrically and fixedly connected to a pressure rod (1111) that cooperates with the cleaning ring (1104); The inner wall of the discharge trough (1101) is fixedly connected to a T-shaped connecting rod (1112), one end of the T-shaped connecting rod (1112) is fixedly connected to a movable sleeve (1113), the movable sleeve (1113) is movably inserted into the interior of the adjacent injection tube (1110), a movable groove (1114) is provided inside the movable sleeve (1113), the inner wall of the movable groove (1114) is fixedly connected to an extrusion spring (1115), one end of the extrusion spring (1115) is fixedly connected to an extrusion rod (1116), one end of the extrusion rod (1116) is movably inserted into the surface of the movable sleeve (1113), and the end of the injection tube (1110) away from the discharge trough (1101) is fixedly connected to a stopper (1117) that cooperates with the extrusion rod (1116); The surface of the extrusion rod (1116) is fixedly connected with a rectangular plate (1118), and the rectangular plates (1118) are provided in eight numbers. The eight rectangular plates (1118) are fixedly connected to the surface of the extrusion rod (1116) at equal intervals along the circumference. Every four rectangular plates (1118) are provided as a group, and two groups of rectangular plates (1118) are staggered. A waist-shaped groove (1119) is provided in the middle of the rectangular plate (1118), and a sliding pin (1120) is slidably connected to the inside of the waist-shaped groove (1119). A U-shaped scraper (1121) is fixedly connected between the two ends of the sliding pin (1120), and the U-shaped scraper (1121) is movably inserted into the surface of the injection tube (1110). A butt joint sleeve (1122) that matches the glue injection tube (1110) is fixedly connected to the side wall of the cover plate punch (9).

2. The injection molding equipment for producing electric cover plates according to claim 1, characterized in that: The adjustment mechanism (6) comprises an adjustment pin (601), and the adjustment pin (601) is eccentrically mounted on the top of the turntable (3); The middle parts of the two support tubes (5) are both slidably connected to support rings (602), and an adjustment plate (603) is fixedly connected between the bottoms of the two support rings (602). An adjustment groove (604) is provided in the middle part of the adjustment plate (603), and the adjustment plate (603) is slidably connected to the surface of the adjustment pin (601) through the adjustment groove (604); Limiting rings (605) that match the supporting ring (602) are symmetrically fixedly connected to both sides of the support tube (5), and the two limiting rings (605) are arranged between the two connecting ring frames (7) on the same side.

3. The injection molding equipment for producing electric cover plates according to claim 2, characterized in that: The length of the distance that the support tube (5) slides on the surface of the slide rod (4) is set to be twice the distance from the axis of the adjustment pin (601) to the axis of the turntable (3).

4. The injection molding equipment for producing electric cover plates according to claim 3, characterized in that: One end of the U-shaped scraper (1121) away from the glue injection tube (1110) is configured as an arcuate surface, two adjacent U-shaped scrapers (1121) are overlapped, and the surfaces of the U-shaped scrapers (1121) are chamfered.

5. The injection molding equipment for producing electric cover plates according to claim 4, characterized in that: The crossbar (1107) is configured to be T-shaped, and a recessed groove matching the crossbar (1107) is provided on the surface of the cover plate punch (9).

6. The injection molding equipment for producing electric cover plates according to claim 5, characterized in that: The four sides of the cover plate concave mold (8) are fixedly connected with positioning pin sleeves, and the four sides of the cover plate convex mold (9) are fixedly connected with positioning pin shafts, and the four positioning pin shafts correspond to the four positioning pin sleeves one by one; Discharge chutes are provided on both the front and rear sides of the injection molding machine bracket (1), and the two discharge chutes correspond one to one with the two cover plate concave molds (8).

7. A method for using an injection molding device for producing electric cover plates, characterized in that: Using the injection molding equipment for producing power cover plates according to any one of claims 1 to 6 comprises the following steps: S1. When in use, first start the transmission motor (2) to rotate the turntable (3) and the adjustment pin (601). At this time, the adjustment pin (601) and the adjustment plate (603) cooperate in the sliding process, and the adjustment plate (603) drives the support ring (602) to move back and forth on the surface of the support tube (5). When the support ring (602) moves forward to the limit position, the support ring (602) will press against the limit ring (605) at the front side of the support tube (5) and drive the support ring (602) to move back and forth. The tube (5) moves forward on the surface of the slide bar (4). Conversely, when the support ring (602) moves backward to the limit position, the support ring (602) presses against the limit ring (605) at the rear side of the support tube (5) and moves the support tube (5) backward on the surface of the slide bar (4). In this way, when the two support tubes (5) move back and forth, the support tube (5) moves synchronously with the corresponding connecting ring frame (7), the cover plate concave mold (8) and the cover plate convex mold (9); S2. During the forward movement of the support tube (5), the cover plate die (8) on the front side of the support tube (5) moves forward synchronously with the cover plate punch (9) through the guide rod (13). At the same time, under the action of the guide spring (15), the cover plate punch (9) and the cover plate die (8) gradually separate to realize the mold opening action. At this time, the docking sleeve (1122) on the cover plate punch (9) releases the pressure on the injection tube (1110). Under the elastic recovery of the compression spring (1109), the injection tube (1110) moves toward the side wall of the cover plate punch (9). At this time, the injection tube ( The pressure rod (1111) on the discharge trough (1110) releases the contact of the cleaning ring (1104) on the inner wall of the adjacent discharge trough (1101), so that the cleaning ring (1104) moves toward the outside of the discharge trough (1101) under the action of the return spring (1105), and then the cleaning ring (1104) cooperates with the pad rod (1103) to move with the sealing cone block (1106) to the end position of the discharge trough (1101) to seal the discharge trough (1101), and at the same time, the moving cleaning ring (1104) scrapes the inner wall of the discharge trough (1101); S3. During the forward movement of the injection tube (1110) at the front side of the injection molding machine support (1), the movable sleeve (1113) inside the injection tube (1110) is restricted at the outlet position of the discharge trough (1101) by the T-shaped connecting rod (1112). After the injection tube (1110) moves forward, the stopper (1117) on the injection tube (1110) releases the pressure on the extrusion rod (1116) inside the movable sleeve (1113). Under the elastic recovery of the extrusion spring (1115), the extrusion rod (1116) with the rectangular plate (1118) is moved in the movable groove (1114). The inner portion of the rubber tube (1110) is moved. At this time, the waist groove (1119) on the rectangular plate (1118) and the sliding pin (1120) on the U-shaped scraper (1121) slide in cooperation. Then, the U-shaped scraper (1121) moves along the side wall of the movable sleeve (1113) toward the inner wall of the rubber tube (1110), so that the eight U-shaped scrapers (1121) form a ring shape and are attached to the inner wall of the rubber tube (1110). As the rubber tube (1110) moves, the eight scrapers scrape off the injection molding material remaining on the inner wall of the rubber tube (1110), and the scraped injection molding material falls into the position of the Y-shaped discharge plate (12) and is discharged; S4. At the same time, the cover plate die (8) installed on the rear side of the support tube (5) through the connecting ring frame (7) moves forward and moves with the cover plate punch (9) toward the feeding dragon tube (10). At this time, the cover plate die (8) and the cover plate punch (9) behind the injection molding machine support (1) are molded together and move with the docking sleeve (1122) and the adjacent injection tube (1110) toward the discharge groove (1101) position on the side wall of the feeding dragon tube (10), so that one end of the injection tube (1110) is plugged and sealed with the corresponding discharge groove (1101), and the other end of the injection tube (1110) is sealed with the docking sleeve (1122) on the corresponding cover plate punch (9). In this process, the cleaning ring (1104) inside the discharge groove (1101) is affected by the injection tube. The pressure rod (1111) at the end of (1110) is pressed and moved, so that the cleaning ring (1104) releases the sealing state with the discharge trough (1101) through the pad rod (1103) and the sealing cone block (1106). At the same time, the stopper (1117) on the injection tube (1110) is pressed against the position of the extrusion rod (1116) on the surface of the corresponding movable sleeve (1113), so that the rectangular plate (1118) on the extrusion rod (1116) slides in cooperation with the U-shaped scraper (1121), so that the U-shaped scraper (1121) moves toward the side wall of the movable sleeve (1113), so that the interior of the injection tube (1110) is completely penetrated for injection molding processing, so that the two molds before and after the injection molding machine bracket (1) can be staggered to perform continuous power cover injection molding production.

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