Injection molding device

Abstract

The present invention relates to the technical field of plastic injection molding, specifically to an injection molding device, including a machine tool base and an injection molding gun head, wherein the surface of the injection molding gun head is fixedly connected to an extrusion rod, the surface of the machine tool base is fixedly connected to a fixing rod, the surface of the machine tool base is provided with a driving mechanism, the surface of the driving mechanism is fixedly connected to an injection molding mechanism, an adjustment mechanism is provided inside the injection molding mechanism, a vibration mechanism is provided on the surface of the machine tool base, and the driving mechanism includes a numerically controlled electric roller. In the present invention, when the other end of the rotating rod is upward, the push rod is driven upward inside the upper slide groove, and the push rod is pressed upward when the push rod is upward. When the L-shaped support rod is squeezed, the side fixed block is driven to slide upward on the upper mold surface to open the ventilation hole, so that the internal and external pressure will not be too large during injection molding, thereby ensuring the quality of injection molding.

Description

Technical Field

[0001] The invention relates to the technical field of plastic injection molding, in particular to an injection molding device. Background Art

[0002] The injection molding device is a key device for processing plastic raw materials into plastic products. It works together through a series of complex mechanical, hydraulic and electrical control systems to heat and plasticize plastic particles or powders, and then inject them into the mold cavity at high pressure, and obtain plastic products after cooling and solidification. The injection molding device can heat solid plastic raw materials (such as particles or powders) and transform them into a uniform viscous flow state. In the barrel, through the rotation of the screw and the action of the external heating device of the barrel, the plastic gradually softens, melts and mixes evenly, and finally is injected into the mold.

[0003] The existing patent (publication number: CN 107053579 B) discloses an injection molding device and an injection molding method, which includes an upper mold and a lower mold, wherein a steel needle insert with a steel needle is provided on the upper mold or the lower mold, and a layer of elastic film is provided on the mold surface of the lower mold or the upper mold opposite to the steel needle. The above-mentioned injection molding device and injection molding method directly obtain micron-level micropores / micropore arrays by installing fine needles with the required aperture in a traditional injection mold in combination with an elastic film cushion layer. By replacing the integral mold with a steel needle insert at the position where the micropores need to be formed, and coating a layer of elastic film on the mold surface opposite to the steel needle, the end face of the steel needle can be pressed into the elastic film after the mold is closed, and the deformation of the elastic film is controlled by controlling the pressing depth of the steel needle, so that the deformation of the elastic film is within the elastic deformation range, so that the hole can be ensured to have no flash, and the damage to the elastic film by the mold closing can be avoided, so as to ensure the rapid batch process of the injection molding process. However, when injecting large plastics, the different temperatures inside and outside the mold will cause the internal pressure to increase, resulting in thermal expansion and contraction, which will cause bubbles to form in the mold to varying degrees, resulting in quality. At the same time, flashing and overflow will occur during the injection molding process, which will also affect product quality. Summary of the invention

[0004] The object of the present invention is to provide an injection molding device to solve the problems raised in the above background technology. To achieve the above object, the present invention provides the following technical solutions: an injection molding device, including a machine tool base and an injection molding gun head, the surface of the injection molding gun head is fixedly connected with an extrusion rod, the surface of the machine tool base is fixedly connected with a fixed rod, the surface of the machine tool base is provided with a driving mechanism, the surface of the driving mechanism is fixedly connected with an injection molding mechanism, the inside of the injection molding mechanism is provided with an adjustment mechanism, the surface of the machine tool base is provided with a vibration mechanism, the driving mechanism includes a numerically controlled electric roller, the numerically controlled electric roller is rotatably connected to the surface of the machine tool base, the upper end of the numerically controlled electric roller is fixedly connected with a cross rod, the lower end of the fixed rod is fixedly connected with a fixed cylinder, the surface of the fixed cylinder is provided with an inclined groove, the inside of the inclined groove is slidably connected with a slider, and the surface of the slider is rotatably connected with an L-shaped rod.

[0005] Preferably, the injection molding mechanism comprises a bottom plate, which is fixedly connected to the surface of the cross rod. The surface of the bottom plate is rotatably connected to a lower mold, the upper end of the lower mold is rotatably connected to an upper mold, an injection hole is provided on the side of the lower mold, an upper slide groove is provided on the side of the lower mold, a lower slide groove is provided on the side of the lower mold, and a ventilation hole is provided on the surface of the upper mold.

[0006] Preferably, the adjustment mechanism includes a limiting slide groove, the limiting slide groove has an upper end at which an injection hole is provided, the limiting slide groove is internally slidably connected with an inclined surface block, the upper end of the inclined surface block is fixedly connected with a slide rod, the side surface of the lower mold is rotatably connected with a connecting rod 1, one end of the connecting rod 1 is rotatably connected with a connecting rod 2, the surface of the lower mold is rotatably connected with a rotating rod 1, one end of the rotating rod 1 is rotatably connected with a rotating rod 2, the other end of the rotating rod 1 is rotatably connected with a push rod, the surface of the upper mold is slidably connected with an L-shaped support rod, the surface of the upper mold is slidably connected with a stopper, the other surface of the rotating rod 2 is fixedly connected with a spring telescopic rod, the other end of the spring telescopic rod is fixedly connected with a baffle, and the inner side of the upper mold is slidably connected with a spring baffle.

[0007] Preferably, the vibration mechanism includes a rotating rod, which is rotatably connected to the surface of the machine tool base, a transmission belt is transmission-connected between the rotating rod and the CNC electric roller, a support rod is fixedly connected to the surface of the machine tool base, the top of the rotating rod is fixedly connected to a rotating wheel, the surface of the rotating wheel is fixedly connected to a rotating groove, the inside of the rotating groove is rotatably connected to a U-shaped frame, the side of the upper end of the support rod is fixedly connected to a limiting rod, and the top of the U-shaped frame is fixedly connected to a rubber plate.

[0008] Preferably, one end of the connecting rod 2 is rotatably connected to the connecting rod 1, and the other end is rotatably connected to the side of the sliding rod. The other end of the connecting rod 1 is rotatably connected to the lower end of the rotating rod 2. The lower end of the rotating rod 2 is slidably connected inside the sliding groove. The sliding rod is slidably connected inside the side of the lower mold through the inclined block.

[0009] Preferably, the push rod is slidably connected inside the upper slide groove, the baffle is slidably connected inside the side surface of the lower mold, and both sides of the baffle are fixedly connected to the L-shaped support rod.

[0010] Preferably, the upper end of the U-shaped frame is rotatably connected to the surface of the limiting rod.

[0011] Preferably, the other side of the L-shaped rod is fixedly connected to the side surface of the lower mold.

[0012] In the present invention, when the other end of the rotating rod is upward, the push rod is driven upward in the upper slide groove, and the push rod squeezes the L-shaped support rod when it is upward. When the L-shaped support rod is squeezed, it drives the side fixed block to slide upward on the surface of the upper mold to open the ventilation hole. In this way, excessive internal and external pressure will not be caused during injection molding, thereby ensuring the quality of injection molding.

[0013] In the present invention, the inclined surface at the lower end of the baffle is fitted with the inclined surface in the lower mold to form a new inner wall. At the same time, when the baffle is upward, it will squeeze the spring baffle in the upper mold until the top of the upper mold. In this way, the flashing phenomenon and quality problems caused by overflow of injection molding materials can be prevented during injection molding.

[0014] In the present invention, the cross rod is driven to rotate when the numerically controlled electric roller rotates, and the upper mold and the lower mold after injection molding are rotated to the next position to wait for cooling, and the upper mold and the lower mold on the cross rod can be docked with the injection molding gun head to continue injection molding, forming a cycle, thereby improving the efficiency of injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional appearance of the present invention;

[0016] Figure 2 This is an enlarged structural schematic diagram of the injection molding gun head of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the driving mechanism of the present invention;

[0018] Figure 4 This is a schematic diagram of the enlarged structure of the fixed cylinder of the present invention;

[0019] Figure 5 This is a schematic diagram of the bottom structure of the lower mold of the present invention;

[0020] Figure 6This is a schematic diagram of the external structure of the lower mold of the present invention;

[0021] Figure 7 It is a schematic diagram of the top structure of the injection molding mechanism of the present invention;

[0022] Figure 8 It is a schematic diagram of the side cross-sectional structure of the lower mold of the present invention;

[0023] Fig. 9 For the present invention Figure 8 A is a schematic diagram of the enlarged structure of the middle part;

[0024] Fig.10 For the present invention Figure 8 A schematic diagram of the enlarged structure of B;

[0025] Fig.11 It is a schematic diagram of the stopper and other structures of the present invention;

[0026] Fig.12 This is a schematic cross-sectional view of the other side of the lower mold of the present invention;

[0027] Fig.13 For the present invention Fig.12 Schematic diagram of the enlarged structure of C in the middle;

[0028] Fig.14 It is a schematic diagram of the side cross-sectional structure of the upper mold of the present invention;

[0029] Fig.15 It is a schematic diagram of the structure of the vibration mechanism of the present invention;

[0030] Fig.16 It is a schematic diagram of the U-shaped frame of the present invention and its other structures.

[0031] In the figure: 1, machine base; 2, injection gun head; 3, extrusion rod; 4, fixed rod; 5, driving mechanism; 6, injection mechanism; 7, adjustment mechanism; 8, vibration mechanism; 51, CNC electric roller; 52, cross rod; 53, fixed cylinder; 54, inclined groove; 55, slider; 56, L-shaped rod; 61, bottom plate; 62, lower mold; 63, upper mold; 64, injection hole; 65, upper slide groove; 66, lower slide groove; 67, ventilation hole; 7 1. Limiting slide groove; 72. Inclined block; 73. Sliding rod; 74. Connecting rod 1; 75. Connecting rod 2; 76. Turning rod 1; 77. Turning rod 2; 78. Push rod; 79. L-shaped support rod; 710. Block; 711. Spring telescopic rod; 712. Baffle; 713. Spring baffle; 81. Rotating rod; 82. Transmission belt; 83. Support rod; 84. Rotating wheel; 85. Rotating groove; 86. U-shaped frame; 87. Limiting rod; 88. Rubber plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 16 The present invention provides a technical solution: an injection molding device, comprising a machine tool base 1, an injection molding gun head 2, an extrusion rod 3 is fixedly connected to the surface of the injection molding gun head 2, a fixing rod 4 is fixedly connected to the surface of the machine tool base 1, a driving mechanism 5 is arranged on the surface of the machine tool base 1, an injection molding mechanism 6 is fixedly connected to the surface of the driving mechanism 5, an adjustment mechanism 7 is arranged inside the injection molding mechanism 6, a vibration mechanism 8 is arranged on the surface of the machine tool base 1, the driving mechanism 5 comprises a numerically controlled electric roller 51, the numerically controlled electric roller 51 is rotatably connected to the surface of the machine tool base 1, a cross rod 52 is fixedly connected to the upper end of the numerically controlled electric roller 51, a fixing cylinder 53 is fixedly connected to the lower end of the fixing rod 4, a bevel groove 54 is opened on the surface of the fixing cylinder 53, a slider 55 is slidably connected to the inside of the bevel groove 54, and an L-shaped rod 56 is rotatably connected to the surface of the slider 55.

[0034] The injection molding mechanism 6 includes a bottom plate 61, which is fixedly connected to the surface of the cross rod 52. The surface of the bottom plate 61 is rotatably connected to the lower mold 62, and the upper end of the lower mold 62 is rotatably connected to the upper mold 63. The side of the lower mold 62 is provided with an injection hole 64, the side of the lower mold 62 is provided with an upper slide groove 65, the side of the lower mold 62 is provided with a lower slide groove 66, and the surface of the upper mold 63 is provided with a ventilation hole 67. The other side of the L-shaped rod 56 is fixedly connected to the side of the lower mold 62. When the CNC electric roller 51 rotates, the cross rod 52 is driven to rotate, and the upper mold 63 and the lower mold 62 after injection molding are rotated to the next position. , waiting for cooling, and the next upper mold 63 and lower mold 62 on the cross rod 52 can be docked with the injection gun head 2 to continue injection molding, forming a cycle, and improving the efficiency of injection molding. The L-shaped rod 56 is driven to rotate through the lower mold 62 at the same time, and the L-shaped rod 56 drives the slider 55 to slide in the inclined groove 54, and through the inclined surface of the inclined groove 54, drives the L-shaped rod 56 to rotate. After the position of the L-shaped rod 56 changes, it drives the lower mold 62 to rotate on the surface of the bottom plate 61 and tilt, which is convenient for the staff to demould.

[0035] The adjustment mechanism 7 includes a limiting slide groove 71, the limiting slide groove 71 is provided with the upper end of the injection hole 64, the limiting slide groove 71 is slidably connected with an inclined block 72 inside, the upper end of the inclined block 72 is fixedly connected with a slide rod 73, the side of the lower mold 62 is rotatably connected with a connecting rod 1 74, one end of the connecting rod 1 74 is rotatably connected with a connecting rod 2 75, the surface of the lower mold 62 is rotatably connected with a rotating rod 1 76, one end of the rotating rod 1 76 is rotatably connected with a rotating rod 2 77, and the other end of the rotating rod 1 76 is rotatably connected with a push rod 78, the surface of the upper mold 63 is slidably connected with an L-shaped support rod 79, and the surface of the upper mold 63 is slidably connected with a stopper 710. When the L-shaped support rod 79 is not squeezed, it drives the stopper 710 fixed on the side to slide downward on the surface of the upper mold 63 to close the ventilation hole 67 The vent 67 is then pushed into the lower mold 62 and the upper mold 63 to open the vent 67. The other side of the rotating rod 77 is fixedly connected with a spring telescopic rod 711, and the other end of the spring telescopic rod 711 is fixedly connected with a baffle 712. The inner side of the upper mold 63 is slidably connected with a spring baffle 713. When the other end of the rotating rod 76 is upward, the push rod 78 is driven upward inside the upper slide groove 65. When the push rod 78 is upward, the L-shaped support rod 79 is squeezed. When the L-shaped support rod 79 is squeezed, the side fixed block 710 is driven to slide upward on the surface of the upper mold 63 to open the vent 67. In this way, the internal and external pressures will not be too large during injection molding, thereby ensuring the quality of injection molding.

[0036] The lock body 710 of the embodiment of the present invention is the lock body 711 of the embodiment of the present invention, and the lock body 712 of the embodiment of the present invention is the lock body 713 of the present invention.

[0037] The vibration mechanism 8 includes a rotating rod 81, which is rotatably connected to the surface of the machine tool base 1, a transmission belt 82 is connected between the rotating rod 81 and the CNC electric roller 51, a support rod 83 is fixedly connected to the surface of the machine tool base 1, a rotating wheel 84 is fixedly connected to the top of the rotating rod 81, a rotating groove 85 is fixedly connected to the surface of the rotating wheel 84, a U-shaped frame 86 is rotatably connected inside the rotating groove 85, a limit rod 87 is fixedly connected to the side of the upper end of the support rod 83, and a rubber plate 88 is fixedly connected to the top of the U-shaped frame 86 The upper end of the U-shaped frame 86 rotates on the surface of the limiting rod 87 and is connected to the rotating rod 81, which drives the upper end of the rotating wheel 84 to rotate. When the rotating wheel 84 rotates, it drives the rotating groove 85 on the surface to rotate at the same time. The rotating groove 85 drives the U-shaped frame 86 limited by the limiting rod 87 to reciprocate on the surface of the limiting rod 87. When the U-shaped frame 86 swings back and forth, it drives the rubber plate 88 to swing back and forth at the same time. At the same time, the rubber plate 88 will hit the rotating lower mold 62 to cause it to vibrate, which further facilitates demoulding.

[0038] The use method and advantages of the present invention: When the injection molding device is used, the working process is as follows:

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 As shown;

[0040] When in use, the staff first inserts the injection gun head 2 into the injection hole 64, and at the same time, the extrusion rod 3 on the surface of the injection gun head 2 will squeeze the inclined surface block 72. After being squeezed, the inclined surface block 72 will slide upward in the limiting slide groove 71. When the inclined surface block 72 slides upward, it will drive the slide bar 73 to slide upward. When the slide bar 73 slides upward, it will pull the connecting rod 1 74 by rotating the connected connecting rod 2 75. When the connecting rod 1 74 is pulled upward, the other end will rotate downward. When the other end of the connecting rod 1 74 is downward, it will pull the rotating rod 2 77 When the push rod 78 moves upward, it squeezes the L-shaped support rod 79. When the L-shaped support rod 79 is squeezed, it drives the side fixed block 710 to slide upward on the surface of the upper mold 63 to open the vent 67. In this way, the internal and external pressures will not be too large during injection molding, thereby ensuring the quality of injection molding.

[0041] At the same time, when the push rod 78 slides upward, the spring telescopic rod 711 on the other side will be driven to move upward at the same time. When the spring telescopic rod 711 moves upward, it will drive the baffle 712 to slide upward at the same time. When the baffle 712 slides to the top, the thrust of the spring telescopic rod 711 will make the inclined surface at the lower end of the baffle 712 fit with the inclined surface in the lower mold 62 to form a new inner wall. At the same time, when the baffle 712 moves upward, it will squeeze the spring baffle 713 in the upper mold 63 until the top of the upper mold 63. In this way, the flashing phenomenon and quality problems caused by overflow of injection molding materials can be prevented during injection molding.

[0042] After the injection molding is completed, the CNC electric roller 51 can be started to rotate ninety degrees. When the CNC electric roller 51 rotates, it drives the cross rod 52 to rotate, and the upper mold 63 and the lower mold 62 that have been completed by injection molding are rotated to the next position to wait for cooling. The next upper mold 63 and the lower mold 62 on the cross rod 52 can be docked with the injection gun head 2 to continue injection molding, forming a cycle to improve the efficiency of injection molding.

[0043] When the upper mold 63 and the lower mold 62 reach the next position, in this interval, the inclined surface block 72 will slide downward in the limiting slide groove 71 after being not squeezed. When the inclined surface block 72 slides downward, it will drive the slide rod 73 to slide downward. When the slide rod 73 slides downward, it will pull the connecting rod 1 74 by rotating the connected connecting rod 2 75. When the connecting rod 1 74 is pulled downward, the other end will rotate upward. When the other end of the connecting rod 1 74 is upward, it will pull the rotating rod 2 77 to slide upward in the sliding groove 66, and at the same time drive the rotating rod 1 76 to reverse upward. When the lever 76 rotates clockwise and the other end of the lever 76 rotates counterclockwise, it moves downward. When the other end of the lever 76 moves downward, it drives the push rod 78 upward inside the upper slide groove 65. When the push rod 78 moves downward, it will not squeeze the L-shaped support rod 79. When the L-shaped support rod 79 is not squeezed, it drives the side fixed block 710 to slide downward on the surface of the upper mold 63 to close the vent 67. In this way, some residual injection molding material in the vent 67 can be pushed into the lower mold 62 and the upper mold 63, further improving the quality of injection molding.

[0044] Start the CNC electric roller 51 again and rotate it ninety degrees. When rotating in the next interval, the cross rod 52 drives the lower mold 62 and the upper mold 63 to rotate. The lower mold 62 drives the L-shaped rod 56 to rotate at the same time. The L-shaped rod 56 drives the slider 55 to slide in the bevel groove 54, and drives the L-shaped rod 56 to rotate through the bevel of the bevel groove 54. After the position of the L-shaped rod 56 changes, it drives the lower mold 62 to rotate on the surface of the bottom plate 61 and tilt, which makes it easier for the staff to demold.

[0045] At the same time, in the interval package again, the CNC electric roller 51 drives the rotating rod 81 to rotate through the transmission belt 82. When the rotating rod 81 rotates, it drives the upper end of the rotating wheel 84 to rotate. When the rotating wheel 84 rotates, it drives the surface of the rotating groove 85 to rotate at the same time. The rotating groove 85 will drive the U-shaped frame 86 limited by the limiting rod 87 to reciprocate on the surface of the limiting rod 87. When the U-shaped frame 86 swings back and forth, it drives the rubber plate 88 to swing back and forth at the same time. At the same time, the rubber plate 88 will hit the rotating lower mold 62 to make it vibrate, which further facilitates demoulding.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An injection molding device, comprising a machine tool base (1) and an injection molding gun head (2), characterized in that: The surface of the injection molding gun head (2) is fixedly connected to an extrusion rod (3), the surface of the machine tool base (1) is fixedly connected to a fixing rod (4), the surface of the machine tool base (1) is provided with a driving mechanism (5), the surface of the driving mechanism (5) is fixedly connected to an injection molding mechanism (6), an adjustment mechanism (7) is arranged inside the injection molding mechanism (6), the surface of the machine tool base (1) is provided with a vibration mechanism (8), the driving mechanism (5) comprises a numerically controlled electric roller (51), the numerically controlled electric roller (51) is rotatably connected to the surface of the machine tool base (1), the upper end of the numerically controlled electric roller (51) is fixedly connected to a cross rod (52), the lower end of the fixing rod (4) is fixedly connected to a fixing cylinder (53), the surface of the fixing cylinder (53) is provided with an inclined groove (54), the interior of the inclined groove (54) is slidably connected to a slider (55), and the surface of the slider (55) is rotatably connected to an L-shaped rod (56); The injection molding mechanism (6) comprises a bottom plate (61), the bottom plate (61) is fixedly connected to the surface of the cross rod (52), the surface of the bottom plate (61) is rotatably connected to a lower mold (62), the upper end of the lower mold (62) is rotatably connected to an upper mold (63), an injection hole (64) is provided on the side of the lower mold (62), an upper slide groove (65) is provided on the side of the lower mold (62), a lower slide groove (66) is provided on the side of the lower mold (62), and a ventilation hole (67) is provided on the surface of the upper mold (63); The adjustment mechanism (7) comprises a limiting slide groove (71), the limiting slide groove (71) is provided with an upper end of an injection hole (64), the limiting slide groove (71) is slidably connected to an inclined surface block (72) inside, the upper end of the inclined surface block (72) is fixedly connected to a slide rod (73), the side surface of the lower mold (62) is rotatably connected to a connecting rod 1 (74), one end of the connecting rod 1 (74) is rotatably connected to a connecting rod 2 (75), the surface of the lower mold (62) is rotatably connected to a rotating rod 1 (76), and the rotating rod 1 (76) One end of the rotating rod (76) is rotatably connected to a rotating rod (77), the other end of the rotating rod (76) is rotatably connected to a push rod (78), the surface of the upper mold (63) is slidably connected to an L-shaped support rod (79), the surface of the upper mold (63) is slidably connected to a stopper (710), the other surface of the rotating rod (77) is fixedly connected to a spring telescopic rod (711), the other end of the spring telescopic rod (711) is fixedly connected to a baffle (712), and the inner side of the upper mold (63) is slidably connected to a spring baffle (713); One end of the second connecting rod (75) is rotatably connected to the first connecting rod (74), and the other end is rotatably connected to the side of the sliding rod (73). The other end of the first connecting rod (74) is rotatably connected to the lower end of the second rotating rod (77). The lower end of the second rotating rod (77) is slidably connected inside the sliding groove (66). The sliding rod (73) is slidably connected inside the side of the lower mold (62) through the inclined block (72).

2. An injection molding device according to claim 1, characterized in that: The vibration mechanism (8) comprises a rotating rod (81), the rotating rod (81) being rotatably connected to the surface of the machine tool base (1), a transmission belt (82) being transmission-connected between the rotating rod (81) and the numerically controlled electric roller (51), a support rod (83) being fixedly connected to the surface of the machine tool base (1), a rotating wheel (84) being fixedly connected to the top end of the rotating rod (81), a rotating groove (85) being fixedly connected to the surface of the rotating wheel (84), a U-shaped frame (86) being rotatably connected inside the rotating groove (85), a limiting rod (87) being fixedly connected to the side surface of the upper end of the support rod (83), and a rubber plate (88) being fixedly connected to the top end of the U-shaped frame (86).

3. An injection molding device according to claim 1, characterized in that: The push rod (78) is slidably connected inside the upper slide groove (65), the baffle plate (712) is slidably connected inside the side surface of the lower mold (62), and both sides of the baffle block (710) are fixedly connected to the L-shaped support rod (79).

4. An injection molding device according to claim 2, characterized in that: The upper end of the U-shaped frame (86) is rotatably connected to the surface of the limiting rod (87).

5. The injection molding device according to claim 1, characterized in that: The other side of the L-shaped rod (56) is fixedly connected to the side surface of the lower mold (62).

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