Injection molding device for preparing plastic products

Abstract

The present invention discloses an injection molding device for preparing plastic products, and relates to the technical field of injection molding devices. The device comprises: a base, on which an injection molding module is arranged; a fixed frame, fixedly connected to the upper side of the base; a hopper, fixedly connected to the fixed frame, and used to convey raw materials into the injection molding module; a plurality of guide shells, all of which are fixedly connected to the fixed frame through connectors, the guide shells are provided with through holes and discharge ports, the guide shells are rotatably connected to a connecting shell inside, and a storage shell is arranged inside the connecting shell. The present invention flexibly adjusts the volume of the plurality of storage shells by changing the positions of the telescopic parts of the plurality of storage shells, so that the proportion of the plurality of raw materials conveyed into the hopper in the same time can be precisely controlled, reducing the extra operation steps, simplifying the adjustment process, thereby significantly improving the production efficiency, and making the whole process faster and smoother.

Description

Technical Field

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

[0002] The injection molding device is a mechanical equipment used to manufacture plastic products of various shapes. It consists of an injection unit, a clamping unit, a control system and auxiliary equipment. When in use, the plastic particles (raw materials) need to be fed into the injection unit through the feeding system and heated to a molten state by the injection unit. The molten plastic is then injected into the mold cavity through a nozzle. After the plastic cools and takes shape, the mold is opened and the finished product is taken out.

[0003] The Chinese patent document with publication number CN117584420B discloses a polymer waterproof coil extrusion device, which includes a frame, a feed pipe is fixedly connected to the upper side of the frame, a stirring piece is fixedly connected to the feed pipe, and the stirring piece is fixedly connected to a main feed hopper and evenly distributed auxiliary feed hoppers through a bracket, a main feed barrel is rotatably connected in the main feed hopper, and an auxiliary feed barrel is rotatably connected in the auxiliary feed hopper; the patent determines the material ratio by the volume of the main feed barrel and the auxiliary feed barrel, adjusts the material discharge speed by the rotation speed of the main feed barrel and the auxiliary feed barrel, and adjusts the material discharge speed by making the main feed barrel , the auxiliary feed barrel is briefly stationary during loading and discharging to ensure that the material can be filled in each round and can fall completely into the feed tube each time, so as to ensure accurate material discharge according to the material ratio. However, in actual use, when the formula changes or the product needs to be changed, it is necessary to readjust the proportion of each raw material delivered to the injection unit in the same time. At this time, it is necessary to re-select the specifications of the main feed barrel and the auxiliary feed barrel, and replace the main feed barrel and the auxiliary feed barrel originally located on the device. The overall process is relatively complicated, which makes the injection molding efficiency low and slows down the overall production process. Summary of the invention

[0004] In order to overcome the problems mentioned in the above background technology, the present invention provides an injection molding device for preparing plastic products.

[0005] The technical implementation scheme of the present invention is: an injection molding device for preparing plastic products, comprising:

[0006] A base, wherein an injection molding module is arranged on the base;

[0007] A fixing frame, fixedly connected to the upper side of the base;

[0008] A lower hopper, fixedly connected to the fixing frame, and used for conveying raw materials into the injection molding module;

[0009] Several guide shells are fixedly connected to the fixed frame by connecting parts, the guide shell is provided with a through hole and a feeding port, the feeding port of the guide shell is communicated with the feeding hopper, the guide shell is internally rotatably connected with a connecting shell, the connecting shell is provided with a first feeding port, and when the first feeding port of the connecting shell is facing upward, it is communicated with the through hole of the adjacent guide shell, and when the first feeding port of the connecting shell is facing downward, it is communicated with the feeding port of the adjacent guide shell, a driving shaft is fixedly connected to one side of the connecting shell, and the driving shaft fixes two adjacent connecting shells, a driving module for driving one of the driving shafts to rotate is provided on the base, a storage shell is provided inside the connecting shell, and the storage shell is provided with a second feeding port, the first feeding port of the connecting shell is communicated with the second feeding port of the storage shell inside it, and a trigger component for changing the volume of the storage shell is provided on the guide shell.

[0010] More preferably, the material storage shell is composed of a telescopic part and a fixed part, wherein the fixed part is fixedly connected in the adjacent connecting shell, and the telescopic part slides in the adjacent connecting shell.

[0011] More preferably, the second feed inlet of the material storage shell is located on the fixed portion thereof, and a side of the fixed portion of the material storage shell close to the second feed inlet thereof is arc-shaped.

[0012] More preferably, the flow areas of the first feed port of the connecting shell and the second feed port of the storage shell are both smaller than the flow area of ​​the discharge port of the guiding shell.

[0013] More preferably, the trigger component comprises:

[0014] A liquid storage shell is fixedly connected to the adjacent guide shell, the liquid storage shell is rotatably connected to the adjacent connecting shell, the connecting shell cooperates with the telescopic part of the adjacent material storage shell to form a liquid storage cavity, and the liquid storage shell is in communication with the adjacent liquid storage cavity;

[0015] A connecting pipe is arranged on the fixing frame, the liquid storage shell is connected with the connecting pipe, and a first valve is arranged at the part where the connecting pipe and the liquid storage shell are connected, and the liquid storage shell and the fixing frame are jointly provided with an adjusting component for changing the position of the telescopic part of the material storage shell.

[0016] More preferably, the adjusting component comprises:

[0017] An extrusion block, fixedly connected to the adjacent driving shaft;

[0018] A movable frame is slidably connected to the fixed frame, and the extrusion block is used to extrude the movable frame;

[0019] A liquid storage pipe is fixedly connected to the fixing frame, the liquid storage pipe is connected to the adjacent liquid storage shell through a hose, and a second valve is provided on the hose of the liquid storage shell;

[0020] The piston rod is sealingly and slidably connected in the liquid storage tube. A first elastic member is fixedly connected between the piston rod and the liquid storage tube, and a second elastic member is fixedly connected between the piston rod and the moving frame.

[0021] More preferably, the elastic coefficient of the second elastic member is greater than the elastic coefficient of the first elastic member.

[0022] More preferably, the projection of the extrusion block on the vertical plane consists of symmetrically distributed semicircular parts and rectangular parts, and the radius of the semicircular part of the extrusion block is equal to the minimum distance between the moving frame and the central axis of the adjacent driving shaft.

[0023] More preferably, it also includes:

[0024] The movable plates, the number of which is the same as the number of the guide shells, are rotatably connected to the adjacent guide shells respectively, the movable plates are in contact with the adjacent connection shells, and the movable plates are used to block the through holes of the adjacent guide shells.

[0025] More preferably, the cross-section of the through hole of the guide shell in the horizontal direction is rectangular, and the maximum area of ​​the side surface of the movable plate is larger than the area of ​​the rectangular cross-section of the through hole of the guide shell.

[0026] Compared with the prior art, the present invention has the following advantages: the present invention flexibly adjusts the volume of multiple storage shells by changing the positions of the telescopic parts of multiple storage shells, so that the proportion of multiple raw materials transported to the lower hopper in the same time can be accurately controlled, reducing additional operating steps, simplifying the adjustment process, thereby significantly improving production efficiency and making the entire process faster and smoother.

[0027] The extrusion block is driven to rotate synchronously by the driving shaft, so that the extrusion block squeezes the moving frame, and the moving frame drives the piston rod to move downward, so that the hydraulic oil in the liquid storage chamber flows into the liquid storage pipe, drives the telescopic part of the material storage shell to move, increases the activity space of the raw materials in the material storage shell, thereby improving the looseness of the raw materials, ensuring the unobstructed second feed port on the material storage shell, promoting the smooth outflow of the raw materials in the material storage shell, and optimizing the operation efficiency of the whole system.

[0028] The connecting shell drives the movable plate to rotate, and the movable plate pushes out the raw material between the first feed port on the connecting shell and the through hole on the guide shell, so as to avoid the raw material between the two being damaged by the squeezing force, thereby ensuring the integrity of the raw material and maintaining the cleanliness between the connecting shell and the guide shell, ensuring that they can rotate normally and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 It is a three-dimensional structural schematic diagram of the fixing frame and the lower hopper of the present invention;

[0031] Figure 3 It is a three-dimensional structural cross-sectional view of the lower hopper of the present invention;

[0032] Figure 4 It is a three-dimensional structural cross-sectional view of the guide shell of the present invention;

[0033] Figure 5 This is a schematic diagram of the positional relationship between the connecting shell and the material storage shell of the present invention;

[0034] Figure 6 It is a three-dimensional structural cross-sectional view of the liquid storage tube of the present invention.

[0035] The reference numbers in the figure are: 1. base, 5. fixed frame, 6. lower hopper, 7. guide shell, 8. connecting shell, 81. driving shaft, 9. material storage shell, 10. liquid storage shell, 11. liquid storage chamber, 12. connecting pipe, 13. extrusion block, 14. movable frame, 15. liquid storage tube, 16. piston rod, 161. first elastic member, 162. second elastic member. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are described clearly and completely below. 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1: An injection molding device for preparing a plastic product, such as Figure 1-Figure 5As shown, it includes a base 1, on which an injection molding module is arranged. The injection molding module is an existing device, and its working process is not described in detail in this article; a fixing frame 5, which is fixedly connected to the upper side of the base 1; a lower hopper 6, which is fixedly connected to the fixing frame 5, and the lower hopper 6 is used to transport raw materials into the injection molding module; a plurality of guide shells 7, which are all fixedly connected to the fixing frame 5 through connecting pieces, the upper side of the guide shell 7 is provided with a through hole, the lower side of the guide shell 7 is provided with a lower material port, the lower material port of the guide shell 7 is connected with the lower material port 6, the inner part of the guide shell 7 is rotatably connected with a connecting shell 8, and the upper side of the connecting shell 8 is provided with a first feeding port, and when the first feeding port of the connecting shell 8 faces upward, it is connected with the corresponding The through hole of the adjacent guiding shell 7 is connected, and when the first feed port of the connecting shell 8 is facing downward, it is connected with the discharge port of the adjacent guiding shell 7. The through hole and the discharge port of the guiding shell 7 are both connected with the first feed port of the connecting shell 8 therein. A driving shaft 81 is fixedly connected to one side of the connecting shell 8, and a driving module for driving one of the driving shafts 81 to rotate is provided on the base 1. The driving shaft 81 fixes two adjacent connecting shells 8. A storage shell 9 is provided inside the connecting shell 8, and a second feed port is provided on the upper side of the storage shell 9. The first feed port of the connecting shell 8 is connected with the second feed port of the storage shell 9 therein, and a trigger component for changing the volume of the storage shell 9 is provided on the guiding shell 7.

[0038] In the above scheme, the fixing frame 5 is fixed to the upper side of the base 1 by quick-release bolts; wherein a plurality of guide shells 7 can be provided according to actual usage, and two are taken as examples in the figure and the text; the through holes on the upper sides of the two guide shells 7 are respectively connected to the external loading device, and different raw materials are transported into the two guide shells 7 by the external loading device; the driving shaft 81 is located on the right side of the connecting shell 8; the driving module is an existing device, and the servo motor is taken as an example in the figure and the text, which can be specifically selected in specific use; initially, the first feed port on the connecting shell 8 is connected to the through hole on the adjacent guide shell 7, and after the connecting shell 8 rotates 180°, the first feed port on the connecting shell 8 is connected to the unloading port on the adjacent guide shell 7.

[0039] Further, such as Figure 5 As shown, the material storage shell 9 is composed of a telescopic part and a fixed part, wherein the fixed part is fixedly connected in the adjacent connecting shell 8, and the telescopic part slides in the adjacent connecting shell 8. The volume of the material storage shell 9 can be changed by changing the relative position of the telescopic part of the material storage shell 9.

[0040] Further, such as Figure 5 As shown, the second feed port of the material storage shell 9 is located on its fixed part, and the side of the fixed part of the material storage shell 9 close to the second feed port is arc-shaped, so that the raw materials in the material storage shell 9 can be completely discharged, avoiding residual raw materials in the material storage shell 9 and causing inaccurate proportions.

[0041] Further, such as Figure 5As shown, the flow areas of the first feed port on the connecting shell 8 and the second feed port on the storage shell 9 are both smaller than the flow area of ​​the discharge port on the guide shell 7, so as to allow the raw materials in the storage shell 9 to be discharged smoothly.

[0042] In this embodiment, the staff can use an external driving device (such as a motor) to drive one of the drive shafts 81 to rotate (the right drive shaft 81 is used as the right drive shaft 81 in this article, and the right drive shaft 81 is used as the right drive shaft 81 in this article). Figure 1 The clockwise rotation from right to left in the figure is used as an example for description), which can drive the two connecting shells 8 to rotate together.

[0043] When it is necessary to use the device to prepare plastic products, the staff first selects a suitable injection molding module according to the plastic products to be prepared, and sets the selected injection molding module on the base 1. Then, the trigger component is controlled to work according to the specific ratio of the two raw materials, and the trigger component changes the position of the telescopic parts of the two storage shells 9, thereby flexibly adjusting the volumes of the two storage shells 9, so that the ratio of the two raw materials delivered to the lower hopper 6 within the same time can be accurately controlled, without replacing the main feed barrel and the auxiliary feed barrel, reducing additional operating steps, simplifying the adjustment process, thereby significantly improving production efficiency, and making the entire process faster and smoother.

[0044] After the volumes of the two material storage shells 9 are adjusted, the staff transports the two raw materials to the two guide shells 7 respectively through the external loading device. At this time, the two raw materials move downward along the through holes on the adjacent guide shells 7 respectively, and move to the interior of the two material storage shells 9 through the first feed ports on the two connecting shells 8 and the second feed ports on the two material storage shells 9 respectively, until the two material storage shells 9 are filled with raw materials, and then the staff starts the injection molding module.

[0045] When the above-mentioned staff starts the injection molding module, the staff intermittently drives the right driving shaft 81 to rotate clockwise through the driving module, and the driving shaft 81 drives the right connecting shell 8 to rotate clockwise. The right connecting shell 8 drives the left connecting shell 8 and the left driving shaft 81 to rotate clockwise synchronously through the left driving shaft 81. The following is a description of the process of the clockwise rotation of the right connecting shell 8 as an example:

[0046] The connecting shell 8 drives the material storage shell 9 inside it to rotate synchronously, so that the first feed port on the connecting shell 8 gradually loses communication with the through hole of the guide shell 7, and then the connecting shell 8 blocks the through hole of the guide shell 7, so that the raw material in the guide shell 7 cannot continue to move downward, until the connecting shell 8 drives the material storage shell 9 to rotate until the first feed port on the connecting shell 8 is gradually connected with the discharge port on the guide shell 7. As the connecting shell 8 drives the material storage shell 9 to continue to rotate, the connection area between the first feed port on the connecting shell 8 and the discharge port on the guide shell 7 gradually increases, so that the raw material in the material storage shell 9 gradually flows into the lower hopper 6 and is guided by the lower hopper 6 to the injection molding module to prepare the required plastic products.

[0047] When the first feeding port on the connecting shell 8 rotates to the lower side of the connecting shell 8, the driving module stops driving the driving shaft 81 to rotate until the raw materials in the storage shell 9 are completely released, and the driving module drives the driving shaft 81 to continue to rotate, thereby driving the first feeding port on the connecting shell 8 and the second feeding port on the storage shell 9 to continue to rotate clockwise, until the first feeding port on the connecting shell 8 rotates to be connected with the through hole on the guide shell 7, the raw materials in the guide shell 7 continue to move into the storage shell 9 through the first feeding port on the connecting shell 8 and the second feeding port on the storage shell 9. At the same time, when the first feeding port on the connecting shell 8 and the second feeding port on the storage shell 9 are respectively rotated to the upper side of the connecting shell 8 and the storage shell 9, that is, when the connecting shell 8 and the storage shell 9 therein are both reset to the initial position, the driving module stops driving the driving shaft 81 to rotate again until the raw materials fill the storage shell 9, and the driving module drives the driving shaft 81 to continue to rotate, and the consumed raw materials in the lower hopper 6 are replenished according to the above operation.

[0048] After the device has been used for a period of time, the staff will shut down the device and clean out the remaining raw materials in the injection molding module. At the same time, the other parts of the device will be cleaned and maintained for subsequent use.

[0049] Further, such as Figure 2-Figure 4 As shown, the trigger assembly includes: a liquid storage shell 10, fixedly connected to the adjacent guide shell 7, the liquid storage shell 10 is rotatably connected to the adjacent connecting shell 8, the connecting shell 8 cooperates with the telescopic part of the adjacent material storage shell 9 to form a liquid storage cavity 11, and the liquid storage shell 10 is connected to the adjacent liquid storage cavity 11; a connecting pipe 12, arranged on the fixing frame 5, the liquid storage shell 10 is connected to the connecting pipe 12, and a first valve is arranged at the part where the connecting pipe 12 is connected to the liquid storage shell 10, and the liquid storage shell 10 and the fixing frame 5 are jointly provided with an adjusting component for changing the position of the telescopic part of the material storage shell 9.

[0050] In the above scheme, the specific number of trigger components can also be specifically selected by the staff. The figure and the text both take two as an example. The liquid storage shell 10 is located on the right side of the adjacent guide shell 7, and the liquid storage shell 10 is filled with hydraulic oil; the first valve on the connecting pipe 12 is used to control the connection state between the liquid storage shell 10 and the adjacent connecting pipe 12, and the first valve on the connecting pipe 12 is in an open state at the initial time; the connecting pipe 12 is externally connected to a liquid conveying device, which is an existing device, which is not shown in the figure and can be selected as a hydraulic pump or other device; the staff uses the liquid conveying device to convey hydraulic oil to the connecting pipe 12, so that the hydraulic oil in the connecting pipe 12 flows into the liquid storage cavity 11 through the liquid storage shell 10, thereby causing the telescopic part of the storage shell 9 to gradually move upward to reduce the volume of the storage shell 9, and the staff controls the closing timing of the first valve on the connecting pipe 12 according to the required volume of the storage shell 9.

[0051] Further, such as Figure 2 , Figure 3 and Figure 6 As shown, the regulating component includes: an extrusion block 13, which is fixedly connected to the adjacent driving shaft 81; a movable frame 14, which is slidably connected to the fixed frame 5, and the extrusion block 13 is used to squeeze the movable frame 14; a liquid storage tube 15, which is fixedly connected to the fixed frame 5, and the liquid storage tube 15 is connected to the adjacent liquid storage shell 10 through a hose, and a second valve is provided on the hose of the liquid storage shell 10; a piston rod 16, which is sealingly slidably connected in the liquid storage tube 15, and a first elastic member 161 is fixedly connected between the piston rod 16 and the liquid storage tube 15, and a second elastic member 162 is fixedly connected between the piston rod 16 and the movable frame 14.

[0052] Furthermore, the elastic coefficient of the second elastic member 162 is greater than the elastic coefficient of the first elastic member 161 , ensuring that the movable frame 14 can drive the piston rod 16 to move downward normally through the second elastic member 162 thereon.

[0053] In the above scheme, the specific number of adjusting components can be specifically selected by the staff. The figure and the text both take two as examples for display. The extrusion block 13, the movable frame 14 and the liquid storage tube 15 are all located on the right side of the adjacent liquid storage shell 10, and initially, the side of the extrusion block 13 away from the adjacent drive shaft 81 is located above the adjacent drive shaft 81; the second valve on the hose of the liquid storage shell 10 is initially in a closed state, the first elastic member 161 is a spring, and the second elastic member 162 is a tension spring.

[0054] Further, such as Figure 6 As shown, the projection of the extrusion block 13 on the vertical plane consists of symmetrically distributed semicircular parts and rectangular parts. The radius of the semicircular part of the extrusion block 13 is equal to the minimum distance between the moving frame 14 and the central axis of the adjacent driving shaft 81. The extrusion block 13 is always in contact with the moving frame 14 during the movement, and the extrusion block 13 does not squeeze the moving frame 14 initially.

[0055] After closing the first valves on the two connecting pipes 12, the staff opens the second valves on the two liquid storage shells 10 hoses. The following takes the movement process of the right parts after the second valve on the right liquid storage shell 10 hose is opened as an example:

[0056] Under the action of the elastic force of the first elastic member 161, the hydraulic oil in the liquid storage chamber 11 cannot flow back into the liquid storage tube 15, so that the volume of the storage shell 9 is maintained in the changed state. Then, during the rotation of the drive shaft 81, the drive shaft 81 drives the extrusion block 13 to rotate clockwise synchronously until the extrusion block 13 rotates 90°. During the process of the extrusion block 13 continuing to rotate clockwise, the extrusion block 13 squeezes the moving frame 14, so that the moving frame 14 drives the piston rod 16 to move downward through the second elastic member 162 thereon. The first elastic member 161 is compressed and stores force, and through the movement of the piston rod 16, the hydraulic oil in the liquid storage chamber 11 is pumped into the liquid storage tube 15 through the liquid storage shell 10 and the hose thereon, thereby driving the telescopic part of the material storage shell 9 to reset, so that the volume of the material storage shell 9 is gradually restored, and the activity space of the raw materials in the material storage shell 9 is increased, thereby increasing the looseness of the raw materials in the material storage shell 9, and avoiding the second feed port on the material storage shell 9 from being blocked when discharging the raw materials due to the raw materials in the material storage shell 9 being too tight, thereby affecting the normal outflow of the raw materials in the storage shell 9.

[0057] During the rotation of the extrusion block 13, as the rotation angle of the extrusion block 13 increases, the distance that the movable frame 14 moves downward increases synchronously, until the hydraulic oil in the liquid storage chamber 11 is completely extracted, and the piston rod 16 can no longer move downward. At this time, as the movable frame 14 continues to move downward, the second elastic member 162 is gradually stretched, until the extrusion block 13 rotates to the side away from the adjacent drive shaft 81 and is located below the adjacent drive shaft 81, the movable frame 14 moves downward to the limit position, at this time, the connecting shell 8 and the storage shell 9 are both rotated 180 degrees, and in the subsequent clockwise process of the extrusion block 13, the extrusion block 13 moves to the movable frame 14. The squeezing force of the movable frame 14 gradually decreases, and the second elastic member 162 first drives the movable frame 14 to return to the initial position relative to the piston rod 16, and then the piston rod 16 gradually returns to the initial position upward under the action of the first elastic member 161. At the same time, during the process of resetting the piston rod 16, the piston rod 16 drives the movable frame 14 to continue to move upward to the initial position, and squeezes the hydraulic oil in the liquid storage tube 15 back into the liquid storage chamber 11, so that the telescopic part of the material storage shell 9 moves again. After the extrusion block 13 rotates 270°, the piston rod 16 and the movable frame 14 are both returned to the initial position, and the raw materials are continued to be transported according to the above operation.

[0058] Embodiment 2: Based on embodiment 1, Figure 2-Figure 5As shown, it also includes: movable plates 18, the number of which is consistent with the number of guide shells 7, and two are used as examples in the figure and the text, which are respectively rotatably connected to the front sides of the through holes in adjacent guide shells 7, and the movable plates 18 are in contact with the adjacent connecting shells 8, and the adjacent movable plates 18 are driven to rotate by the connecting shells 8. The movable plates 18 are used to block the through holes of the adjacent guide shells 7 to intercept the raw materials located in the adjacent guide shells 7.

[0059] Furthermore, the cross-section of the through hole of the guide shell 7 in the horizontal direction is rectangular, and the maximum area of ​​the side of the movable plate 18 is larger than the area of ​​the rectangular cross-section of the through hole on the guide shell 7, ensuring the blocking effect of the movable plate 18 on the upper and lower material ports of the adjacent guide shell 7, thereby preventing the raw material in the through hole of the guide shell 7 from moving downward.

[0060] The following description is made by taking the moving process of the right moving plate 18 as an example:

[0061] During the rotation of the above-mentioned connecting shell 8, the front side of the first feed port on the connecting shell 8 squeezes the movable plate 18, causing the movable plate 18 to rotate counterclockwise around the connecting axis with the guide shell 7, and the movable plate 18 pushes out the raw material between the first feed port on the connecting shell 8 and the through hole on the guide shell 7. At the same time, the rotated movable plate 18 is intercepted by the connecting shell 8 and cannot be reset under the action of the gravity of the raw material, thereby preventing the raw material between the two from being damaged by the extrusion force, thereby preventing the damaged raw material from entering the gap between the connecting shell 8 and the guide shell 7, affecting the normal rotation of the connecting shell 8, ensuring that the raw material flows smoothly between the connecting shell 8 and the guide shell 7, thereby ensuring the integrity of the raw material and ensuring that the guide shell 7 and the connecting shell 8 can rotate normally and efficiently.

[0062] Until the connecting shell 8 drives the first feed port thereon to rotate to the initial position, the movable plate 18 rotates clockwise along the connecting axis between it and the guide shell 7 under the pressure of the raw material, so that the movable plate 18 no longer blocks the through hole of the guide shell 7, and the raw material in the guide shell 7 can continue to flow into the storage shell 9.

[0063] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. An injection molding device for preparing a plastic product, comprising: A base (1), wherein an injection molding module is arranged on the base (1); A fixing frame (5) fixedly connected to the upper side of the base (1); A lower hopper (6) is fixedly connected to the fixing frame (5), and the lower hopper (6) is used to transport raw materials into the injection molding module; A plurality of guide shells (7) are fixedly connected to the fixing frame (5) through connecting pieces, the guide shell (7) is provided with a through hole and a material discharge port, the material discharge port of the guide shell (7) is communicated with the material discharge hopper (6), the guide shell (7) is internally rotatably connected with a connecting shell (8), the connecting shell (8) is provided with a first material feed port, when the first material feed port of the connecting shell (8) faces upward, it is communicated with the through hole of the guide shell (7), when the first material feed port of the connecting shell (8) faces downward, it is communicated with the material discharge port of the guide shell (7), the connecting shell (8) is provided with a first material feed port, A drive shaft (81) is fixedly connected to one side of the connecting shell (8), and the drive shaft (81) fixes two adjacent connecting shells (8). A drive module for driving one of the drive shafts (81) to rotate is arranged on the base (1). A material storage shell (9) is arranged inside the connecting shell (8), and the material storage shell (9) is provided with a second material feed port. The first material feed port of the connecting shell (8) is communicated with the second material feed port of the material storage shell (9) therein, and a trigger component for changing the volume of the material storage shell (9) is arranged on the guide shell (7); The material storage shell (9) is composed of a telescopic portion and a fixed portion, wherein the fixed portion is fixedly connected to the connecting shell (8), and the telescopic portion slides in the connecting shell (8); The trigger component comprises: A liquid storage shell (10) is fixedly connected to the guide shell (7), the liquid storage shell (10) is rotatably connected to the connecting shell (8), the connecting shell (8) cooperates with the telescopic portion of the material storage shell (9) to form a liquid storage cavity (11), and the liquid storage shell (10) is in communication with the liquid storage cavity (11); a connecting pipe (12) arranged on the fixing frame (5), the liquid storage shell (10) being in communication with the connecting pipe (12), a first valve being arranged at a portion where the connecting pipe (12) and the liquid storage shell (10) are in communication, and the liquid storage shell (10) and the fixing frame (5) are jointly provided with an adjusting component for changing the position of the telescopic portion of the material storage shell (9); The adjusting component comprises: An extrusion block (13) fixedly connected to the adjacent drive shaft (81); A movable frame (14) is slidably connected to the fixed frame (5), and the extrusion block (13) is used to extrude the movable frame (14); a liquid storage pipe (15) fixedly connected to the fixing frame (5); the liquid storage pipe (15) is connected to an adjacent liquid storage shell (10) via a hose; a second valve is provided on the hose of the liquid storage shell (10); A piston rod (16) is sealingly and slidably connected in the liquid storage tube (15); a first elastic member (161) is fixedly connected between the piston rod (16) and the liquid storage tube (15); and a second elastic member (162) is fixedly connected between the piston rod (16) and the movable frame (14).

2. An injection molding device for preparing a plastic product according to claim 1, characterized in that: The second feed opening of the material storage shell (9) is located on the fixed portion thereof, and a side of the fixed portion of the material storage shell (9) close to the second feed opening thereof is arc-shaped.

3. An injection molding device for preparing a plastic product according to claim 2, characterized in that: The flow areas of the first feed opening of the connecting shell (8) and the second feed opening of the storage shell (9) are both smaller than the flow area of ​​the discharge opening of the guide shell (7).

4. An injection molding device for preparing a plastic product according to claim 1, characterized in that: The elastic coefficient of the second elastic member (162) is greater than the elastic coefficient of the first elastic member (161).

5. An injection molding device for preparing a plastic product according to claim 1, characterized in that: The extrusion block (13) is composed of symmetrically distributed semicircular parts and rectangular parts, and the radius of the semicircular part of the extrusion block (13) is equal to the minimum distance between the moving frame (14) and the central axis of the adjacent driving shaft (81).

6. An injection molding device for preparing plastic products according to claim 1, characterized in that include: The number of movable plates (18) is the same as the number of the guide shells (7), and they are rotatably connected to the guide shells (7). The movable plates (18) are in contact with the connecting shells (8), and the movable plates (18) are used to block the through holes of the guide shells (7).

7. An injection molding device for preparing a plastic product according to claim 6, characterized in that: The cross section of the through hole of the guide shell (7) in the horizontal direction is rectangular, and the maximum area of ​​the side surface of the movable plate (18) is larger than the area of ​​the rectangular cross section of the through hole on the guide shell (7).

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