A bidirectional right-angle injection molding device
By incorporating uniform heating, slow-release, and anti-clogging mechanisms into the bidirectional right-angle injection molding equipment, the problem of incomplete raw material melting is solved, thereby improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHENJIANG YINGWEIT PRECISION PARTS CO LTD
- Filing Date
- 2026-04-27
- Publication Date
- 2026-06-12
AI Technical Summary
Existing injection molding equipment is prone to incomplete melting of raw materials, which leads to a decrease in product quality.
The equipment employs a bidirectional right-angle injection molding process, which combines a uniform heating feeding mechanism, a spring-loaded mechanism, and an anti-clogging mechanism to ensure that the raw materials are fully melted and to prevent the filter screen from clogging.
This process ensures the raw materials are fully melted, improves product molding quality, prevents filter clogging, and increases production efficiency.
Smart Images
Figure CN122185494A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of injection molding equipment, and in particular relates to a bidirectional right-angle injection molding equipment. Background Technology
[0002] Angle injection molding machines are a type of injection molding machine. These machines are mainly classified into C-type and K-type. The injection direction of an angle injection molding machine is on the same plane as the mold interface. It is particularly suitable for flat products where gate marks are not allowed in the machining center, and also for asymmetrical geometric shapes with side gates.
[0003] The patent document with publication number CN119658956A discloses an injection molding equipment and injection molding method thereof, including a counter, an injection molding machine and a molding die. The molding die is set at one end of the counter and the injection molding machine is set at the other end. One end of the injection molding machine abuts against the molding die and the other end is set with a hopper. A heating mechanism is arranged between the two ends.
[0004] The aforementioned application describes a process where raw materials for injection molding are loaded into a hopper, and a heating mechanism is activated. The drive motor then starts, causing the drive section to rotate. The rotation of the drive section drives the conveying screws of the first and second injection sections to work, thereby conveying and melting the raw materials in the hopper along the first injection section, drive section, push section, second injection section, and nozzle. However, the melting of the raw materials during the conveying process may result in incomplete melting, leading to a decrease in product quality. Therefore, improvements are needed.
[0005] Description The purpose of this invention is to provide a bidirectional right-angle injection molding device that solves the existing problems.
[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a bidirectional right-angle injection molding equipment, comprising a base, a spiral injection molding machine and a molding chamber mounted on the top of the base, an extrusion molding device mounted on the side of the molding chamber, and a module mounted inside the molding chamber. A uniform heating and feeding mechanism is mounted on the top of the spiral injection molding machine. The uniform heating and feeding mechanism includes a feeding cylinder and a hydraulic chamber. A discharge pipe is connected through and fixedly to the bottom of the feeding cylinder, and the bottom of the discharge pipe is connected through and fixedly to the spiral injection molding machine. A pressure relief valve is mounted on the side of the feeding cylinder, and a motor is fixedly mounted on the top of the feeding cylinder. The rear end of the feeding cylinder is connected through and fixedly mounted... The device is connected to a feed pipe. The output shaft of the motor is fixedly connected to a rotating shaft. A rotating cylinder is slidably connected to the surface of the rotating shaft. A stirring blade is fixedly connected to the surface of the rotating cylinder. A return spring is fixedly connected to the bottom of the rotating shaft. A lifting plate is fixedly connected to the surface of the rotating cylinder. A hydraulic chamber passes through and is fixedly connected to the side of the feed cylinder. A piston rod A is slidably connected inside one end of the hydraulic chamber. A gear is fixedly connected to the end of piston rod A away from the hydraulic chamber. A piston rod B is slidably connected inside the other end of the hydraulic chamber. A ball bearing is provided at the bottom of piston rod B. A drive gear is fixedly connected to the surface of the rotating shaft.
[0007] Furthermore, a transparent window is provided at the front end of the molding chamber, an electric heating wire is provided inside the feed cylinder, an injection port is provided at the end of the molding chamber away from the extrusion molding device, and an injection head is provided on the side of the spiral injection molding machine. The raw material in the feed cylinder can be heated and melted by the electric heating wire, and the raw material in the spiral injection molding machine is injected into the module inside the molding chamber through the injection port from the injection head.
[0008] Furthermore, a filter screen is provided inside the feed tube, and the end of the return spring away from the rotating shaft is fixedly connected to the bottom of the inside of the rotating drum. A spring-loaded mechanism is provided inside the bottom of the rotating drum, and an anti-blocking mechanism is provided inside the feed tube. When the rotating drum moves downward, the return spring will be stretched.
[0009] Furthermore, the driving gear is an incomplete gear, and the driving gear meshes with the rack in the initial state. A partition is fixedly connected inside the feed cylinder. When the driving gear rotates and its upper teeth mesh with the upper teeth of the rack, it will drive the rack to move to the right.
[0010] Furthermore, the spring-loaded mechanism includes a lifting plate and a fixed plate. The lifting plate is fixedly connected to the bottom of the inner side of the rotating cylinder. A groove is provided on the side of the lifting plate, and a telescopic spring is provided inside the groove. An arc-shaped block is elastically connected inside the groove through the telescopic spring. The fixed plate is fixedly connected to the bottom of the rotating shaft, and a deceleration strip is fixedly connected to the side of the fixed plate.
[0011] Furthermore, the end of the arc-shaped block away from the telescopic spring protrudes from the groove, and the end of the arc-shaped block away from the telescopic spring is close to the deceleration bar. When the arc-shaped block moves longitudinally, it will contact the deceleration bar.
[0012] Furthermore, the arc surface of the arc block faces the bottom of the lifting plate, and the deceleration bar is a semi-cylindrical rubber strip. When the arc block moves downward, its arc surface will contact the deceleration bar, thereby causing the arc block to move into the groove.
[0013] Furthermore, the anti-clogging mechanism includes a waterproof shell, which is fixedly connected to the inside of the feed cylinder. An air pressure chamber is fixedly connected inside the waterproof shell. An elastic airbag is provided at one end of the air pressure chamber, and a piston rod C is slidably connected inside the other end of the air pressure chamber.
[0014] Furthermore, the elastic airbag is initially inflated and located directly below the rotating cylinder. When the rotating cylinder moves downward, it will compress the elastic airbag.
[0015] Furthermore, an impact block is fixedly connected to the end of the piston rod C away from the pressure chamber. The impact block is initially located directly above the filter screen. When the piston rod C moves downward, it will cause the impact block to strike the filter screen.
[0016] The present invention has the following beneficial effects: 1. This invention features a uniform heating and feeding mechanism, which allows raw materials to be fed into the feeding cylinder during injection molding. The motor is then turned on to drive the rotating shaft, which in turn drives the rotating cylinder to rotate synchronously. Simultaneously, the rotating cylinder moves downward repeatedly through the cooperation of components such as the drive gear, rack, and hydraulic chamber. This, in conjunction with the stirring blades, agitates the raw materials, resulting in more thorough melting and improved product molding quality.
[0017] 2. By incorporating a spring-reducing mechanism, this invention achieves the following: as the slide moves downward, the return spring is stretched, and as the return spring subsequently rebounds, causing the slide to move upward and return to its original position, the spring-reducing force is mitigated by the cooperation of components such as the lifting plate, the fixing plate, and the deceleration bar. This prevents the return spring from bouncing back and forth, which could affect the subsequent meshing of the drive gear with the rack.
[0018] 3. By incorporating an anti-clogging mechanism, this invention ensures that during the repeated downward movement of the rotating drum, the impact block repeatedly strikes the filter screen through the cooperation of components such as airbags and air pressure chambers. This causes the filter screen to vibrate, preventing the molten raw material from clogging the filter screen and preventing it from entering the spiral injection molding machine.
[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of part of the structure of the present invention; Figure 3 This is a three-dimensional front view of the uniform heating and feeding mechanism structure of the present invention; Figure 4 This is a three-dimensional back view of the uniform heating and feeding mechanism structure of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the uniform heating and feeding mechanism structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of the structure at point A in the middle; Figure 7 This is a three-dimensional schematic diagram of the rotating drum structure of the present invention; Figure 8 This is a three-dimensional schematic diagram of the hydraulic chamber structure of the present invention; Figure 9 This is a three-dimensional schematic diagram of the spring-damping mechanism structure of the present invention; Figure 10 This is a three-dimensional cross-sectional view of the spring-damping mechanism structure of the present invention; Figure 11 This is a three-dimensional cross-sectional view of the anti-blocking mechanism structure of the present invention.
[0022] The attached diagram lists the components represented by each number as follows: 1. Base; 2. Spiral injection molding machine; 3. Injection head; 4. Molding chamber; 5. Injection port; 6. Transparent window; 7. Extrusion molding device; 8. Uniform heating feeding mechanism; 81. Feed cylinder; 82. Pressure relief valve; 83. Motor; 84. Feed pipe; 85. Discharge pipe; 86. Filter screen; 87. Baffle plate; 88. Rotating shaft; 89. Rotating drum; 810. Agitator blade; 811. Return spring; 812. Lifting plate; 813. Hydraulic chamber; 814, Piston rod A; 815, Gear rack; 816, Piston rod B; 817, Ball bearing; 818, Drive gear; 9, Responsive mechanism; 91, Lifting plate; 92, Groove; 93, Telescopic spring; 94, Arc block; 95, Fixing plate; 96, Deceleration bar; 10, Anti-blocking mechanism; 101, Waterproof shell; 102, Air pressure chamber; 103, Elastic airbag; 104, Piston rod C; 105, Impact block. Detailed Implementation
[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] Please see Figures 1-11 As shown, this invention is a bidirectional right-angle injection molding equipment, including a base 1. A spiral injection molding machine 2 and a molding chamber 4 are mounted on the top of the base 1. An extrusion molding device 7 is mounted on the side of the molding chamber 4. A module is installed inside the molding chamber 4. A uniform heating feeding mechanism 8 is mounted on the top of the spiral injection molding machine 2. The uniform heating feeding mechanism 8 includes a feeding cylinder 81 and a hydraulic chamber 813. A discharge pipe 85 is connected through and fixedly to the bottom of the feeding cylinder 81. The bottom of the discharge pipe 85 is connected through and fixedly to the spiral injection molding machine 2. A pressure relief valve 82 is mounted on the side of the feeding cylinder 81. A motor 83 is fixedly installed on the top of the feeding cylinder 81. A feeding pipe 84 is connected through and fixedly to the rear end of the feeding cylinder 81. The output shaft of 3 is fixedly connected to a rotating shaft 88. A rotating cylinder 89 is slidably connected to the surface of the rotating shaft 88. An agitator blade 810 is fixedly connected to the surface of the rotating cylinder 89. A return spring 811 is fixedly connected to the bottom of the rotating shaft 88. A lifting plate 812 is fixedly connected to the surface of the rotating cylinder 89. A hydraulic chamber 813 passes through and is fixedly connected to the side of the feed cylinder 81. A piston rod A814 is slidably connected inside one end of the hydraulic chamber 813. A gear 815 is fixedly connected to the end of the piston rod A814 away from the hydraulic chamber 813. A piston rod B816 is slidably connected inside the other end of the hydraulic chamber 813. A ball bearing 817 is provided at the bottom of the piston rod B816. A drive gear 818 is fixedly connected to the surface of the rotating shaft 88.
[0025] The front end of the molding chamber 4 is provided with a transparent window 6, the inside of the feed cylinder 81 is provided with an electric heating wire, the end of the molding chamber 4 away from the extrusion molding device 7 is provided with an injection port 5, and the side of the spiral injection molding machine 2 is provided with an injection head 3. The raw material in the feed cylinder 81 can be heated and melted by the electric heating wire, and the raw material in the spiral injection molding machine 2 is injected into the internal module of the molding chamber 4 through the injection port 5 via the injection head 3.
[0026] The feed tube 85 is equipped with a filter screen 86. The end of the return spring 811 away from the rotating shaft 88 is fixedly connected to the bottom of the inside of the rotating drum 89. The bottom of the inside of the rotating drum 89 is equipped with a spring-loaded mechanism 9. The feed tube 81 is equipped with an anti-blocking mechanism 10. When the rotating drum 89 moves downward, the return spring 811 will be stretched.
[0027] The drive gear 818 is an incomplete gear, and in its initial state it meshes with the rack 815. The feed cylinder 81 has a partition 87 fixedly connected inside. When the drive gear 818 rotates and its upper teeth mesh with the upper teeth of the rack 815, it will drive the rack 815 to move to the right.
[0028] The spring-load mechanism 9 includes a lifting plate 91 and a fixed plate 95. The lifting plate 91 is fixedly connected to the bottom of the inside of the rotating cylinder 89. A groove 92 is provided on the side of the lifting plate 91. A telescopic spring 93 is provided inside the groove 92. An arc-shaped block 94 is elastically connected inside the groove 92 through the telescopic spring 93. The fixed plate 95 is fixedly connected to the bottom of the rotating shaft 88. A deceleration strip 96 is fixedly connected to the side of the fixed plate 95.
[0029] The end of the arc-shaped block 94 away from the telescopic spring 93 protrudes from the groove 92, and the end of the arc-shaped block 94 away from the telescopic spring 93 is close to the deceleration bar 96. When the arc-shaped block 94 moves longitudinally, it will contact the deceleration bar 96.
[0030] The arc surface of the arc block 94 faces the bottom of the lifting plate 91. The deceleration bar 96 is a semi-cylindrical rubber strip. When the arc block 94 moves downward, its arc surface will contact the deceleration bar 96, thereby causing the arc block 94 to move into the groove 92.
[0031] The anti-clogging mechanism 10 includes a waterproof shell 101, which is fixedly connected to the inside of the feed cylinder 81. An air pressure chamber 102 is fixedly connected inside the waterproof shell 101. An elastic airbag 103 is provided at one end of the air pressure chamber 102, and a piston rod C104 is slidably connected inside the other end of the air pressure chamber 102.
[0032] The elastic airbag 103 is initially inflated and located directly below the rotating cylinder 89. When the rotating cylinder 89 moves downward, it will compress the elastic airbag 103.
[0033] An impact block 105 is fixedly connected to the end of the piston rod C104 away from the air pressure chamber 102. The impact block 105 is initially located directly above the filter screen 86. When the piston rod C104 moves downward, it will cause the impact block 105 to impact the filter screen 86.
[0034] A specific application of this embodiment is as follows: During injection molding, the raw material is fed into the feed cylinder 81 through the feed pipe 84. The raw material in the feed cylinder 81 is heated and melted by the heating wire. The motor 83 is turned on, and the motor 83 drives the rotating shaft 88 to rotate through its output shaft. The rotation of the rotating shaft 88 drives the rotating cylinder 89 to rotate synchronously. The rotation of the rotating cylinder 89 drives the stirring blade 810 to stir the raw material in the feed cylinder 81, so that it is fully melted. When the rotating shaft 88 rotates, it also drives the drive gear 818 to rotate. When the upper teeth of the drive gear 818 rotate and its upper teeth mesh with the upper teeth of the gear rack 815, it drives the gear rack 815 to move to the right. The rightward movement of the gear rack 815 drives the piston rod A814 to move to the right. The rightward movement causes the piston rod B816 to move downward via hydraulic pressure within the hydraulic chamber 813. This downward movement of piston rod B816, via ball bearings 817, causes the rotating lifting plate 812 to move downward, which in turn causes the rotating drum 89 to move downward. The return spring 811 is stretched. When the drive gear 818 rotates to its toothless portion and disengages from the gear rack 815, the return spring 811 rebounds, causing the rotating drum 89, lifting plate 812, and piston rod B816 to move upward to their original positions. Simultaneously, hydraulic pressure causes piston rod A814 and gear rack 815 to move to the left to their original positions. This cycle repeats, causing the rotating drum 89 to move downward repeatedly, thus coordinating with the stirring blades 810 to agitate the raw materials, resulting in more thorough melting. To improve the quality of subsequent product molding, the molten raw material enters the spiral injection molding machine 2 through the feed pipe 85, where it is filtered by the filter screen 86. Then, the raw material inside the spiral injection molding machine 2 is injected into the molding chamber 4 through the injection head 3 from the injection port 5. The extrusion molding device 7 drives the mold assembly and shapes the product. When the rotating drum 89 moves downwards, it also drives the lifting plate 91 downwards. During this process, the arc-shaped block 94 moves downwards, and its arc surface contacts the deceleration bar 96, causing the arc-shaped block 94 to move into the groove 92. Then, the extension spring 93 drives the arc-shaped block 94 to pop out and return to its original position, preventing excessive compression with the deceleration bar 96 and thus avoiding significant resistance. When the return spring 811 rebounds and drives the rotating drum 89 upwards, the arc-shaped block 94... The straight surface of the block 94 directly presses against the deceleration bar 96, generating significant resistance. This reduces the rebound force of the return spring 811, preventing it from bouncing back and forth and affecting the subsequent meshing of the drive gear 818 with the rack 815. When the drum 89 moves downward, it presses against the elastic airbag 103. The compressed airbag 103 releases its internal air pressure into the air chamber 102, causing the piston rod C104 to move downward. When the elastic airbag 103 rebounds, the air pressure causes the piston rod C104 to move upward and return to its original position. When the piston rod C104 moves downward, it causes the impact block 105 to impact the filter screen 86, causing the filter screen 86 to vibrate. This prevents the molten material from clogging the filter screen 86 and preventing it from entering the spiral injection molding machine 2.
[0035] In the description of this invention, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this invention, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the description to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this book. The present invention selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. Bidirectional right-angle injection molding apparatus comprising a base (1), characterized in that: The base (1) is provided with a spiral injection molding machine (2) and a molding chamber (4) on its top. The molding chamber (4) is provided with an extrusion molding device (7) on its side. The molding chamber (4) is provided with a module inside. The spiral injection molding machine (2) is provided with a uniform heating feeding mechanism (8) on its top. The uniform heating feeding mechanism (8) includes a feeding cylinder (81) and a hydraulic chamber (813). A discharge pipe (85) is fixedly connected to the bottom of the feeding cylinder (81). The bottom of the discharge pipe (85) is fixedly connected to the spiral injection molding machine (2). A pressure relief valve (82) is provided on the side of the feeding cylinder (81). A motor (83) is fixedly installed on the top of the feeding cylinder (81). A feeding pipe (84) is fixedly connected to the rear end of the feeding cylinder (81). A rotating shaft (88) is fixedly connected to the output shaft of the motor (83). A rotating cylinder (89) is slidably connected to the surface of the rotating shaft (88). An agitator (813) is fixedly connected to the surface of the rotating cylinder (89). 10) A return spring (811) is fixedly connected to the bottom of the rotating shaft (88), a lifting plate (812) is fixedly connected to the surface of the rotating drum (89), the hydraulic chamber (813) passes through and is fixedly connected to the side of the feed cylinder (81), a piston rod A (814) is slidably connected inside one end of the hydraulic chamber (813), a gear rod (815) is fixedly connected to the end of the piston rod A (814) away from the hydraulic chamber (813), a piston rod B (816) is slidably connected inside the other end of the hydraulic chamber (813), a ball bearing (817) is provided at the bottom of the piston rod B (816), and a drive gear (818) is fixedly connected to the surface of the rotating shaft (88).
2. The bidirectional right-angle injection molding equipment according to claim 1, characterized in that, The molding chamber (4) is provided with a transparent window (6) at the front end, the feed cylinder (81) is provided with an electric heating wire, the molding chamber (4) is provided with an injection port (5) at the end away from the extrusion molding device (7), and the spiral injection molding machine (2) is provided with an injection head (3) on the side.
3. The bidirectional right-angle injection molding equipment according to claim 2, characterized in that, The feed tube (85) is equipped with a filter screen (86), the end of the return spring (811) away from the rotating shaft (88) is fixedly connected to the bottom of the inside of the rotating drum (89), the bottom of the inside of the rotating drum (89) is equipped with a spring-loaded mechanism (9), and the inside of the feed tube (81) is equipped with an anti-blocking mechanism (10).
4. The bidirectional right-angle injection molding equipment according to claim 3, characterized in that, The drive gear (818) is an incomplete gear, and the drive gear (818) meshes with the rack (815) in the initial state. The feed cylinder (81) is fixedly connected with a partition (87).
5. The bidirectional right-angle injection molding equipment according to claim 4, characterized in that, The spring-load mechanism (9) includes a lifting plate (91) and a fixed plate (95). The lifting plate (91) is fixedly connected to the bottom of the inside of the rotating cylinder (89). A groove (92) is provided on the side of the lifting plate (91). A telescopic spring (93) is provided inside the groove (92). An arc-shaped block (94) is elastically connected inside the groove (92) through the telescopic spring (93). The fixed plate (95) is fixedly connected to the bottom of the rotating shaft (88). A deceleration strip (96) is fixedly connected to the side of the fixed plate (95).
6. The bidirectional right-angle injection molding equipment according to claim 5, characterized in that, The end of the arc-shaped block (94) away from the telescopic spring (93) protrudes from the groove (92), and the end of the arc-shaped block (94) away from the telescopic spring (93) is close to the deceleration bar (96).
7. A bidirectional right-angle injection molding equipment according to claim 6, characterized in that, The arc surface of the arc block (94) faces the bottom of the lifting plate (91), and the deceleration strip (96) is a semi-cylindrical rubber strip.
8. A bidirectional right-angle injection molding equipment according to claim 7, characterized in that, The anti-blocking mechanism (10) includes a waterproof shell (101), which is fixedly connected to the inside of the feed cylinder (81). A pressure chamber (102) is fixedly connected inside the waterproof shell (101). An elastic airbag (103) is provided at one end of the pressure chamber (102), and a piston rod C (104) is slidably connected inside the other end of the pressure chamber (102).
9. A bidirectional right-angle injection molding equipment according to claim 8, characterized in that, The elastic airbag (103) is initially inflated and is located directly below the rotating cylinder (89).
10. A bidirectional right-angle injection molding equipment according to claim 9, characterized in that, The piston rod C (104) is fixedly connected to an impact block (105) at the end away from the pressure chamber (102), and the impact block (105) is initially located directly above the filter screen (86).