Feeding device of injection molding machine

Abstract

The utility model relates to the technical field of injection molding equipment, and discloses an injection molding machine feeding device which comprises a supporting seat, a feeding hopper is fixedly mounted on the supporting seat, a conical filter sieve is connected to the interior of the feeding hopper through a vibration assembly, a transverse plate is fixedly mounted at the top of the feeding hopper, and a driving motor is fixedly mounted on the upper side of the transverse plate; an output shaft of the driving motor is fixedly connected with a rotating shaft, the bottom of the rotating shaft penetrates through the conical filter sieve, and a plurality of crushing cutters are fixedly mounted on the outer wall, located on the upper side of the conical filter sieve, of the rotating shaft; the bottom of the feeding hopper communicates with a quantitative discharging barrel, and a quantitative wheel and a discharging motor are arranged in a matched mode, so that the discharging motor can be started, the quantitative wheel can rotate through the discharging motor, injection molding raw materials falling into a quantitative groove can be discharged, quantitative feeding of the injection molding raw materials is achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] This application relates to the technical field of injection molding equipment, and particularly relates to a feeding device for an injection molding machine. Background Art

[0002] As disclosed in the Chinese utility model patent with the publication number CN217494985U, a feeding device for a horizontal injection molding machine includes a feed hopper. The lower end of the feed hopper is connected to a discharge pipe. At the upper end inside the feed hopper, a conical sieve is fixedly connected. Inside the feed hopper, a rotating rod is rotatably arranged. The upper end of the rotating rod is fixedly connected to the rotating shaft of a driving motor, and a crushing cutter head is fixedly connected to the upper end of the rotating rod. The feeding device for a horizontal injection molding machine designed in this utility model mainly consists of a feed hopper, a conical sieve, a driving motor, a rotating rod, a crushing cutter head, and a spiral blade. The injection molding raw materials are crushed by the crushing cutter head, and the crushed injection molding raw materials fall into the lower end of the feed hopper through the sieve holes of the conical sieve. The crushed injection molding raw materials are extruded into the feeding cylinder by the spiral blade, effectively avoiding the blockage at the connection between the discharge pipe and the feeding cylinder. Moreover, the injection molding raw materials can be directly poured into the feed hopper and crushed by the crushing cutter head, effectively reducing the labor consumption and improving the production efficiency.

[0003] Regarding the above related technology, the inventor believes that when the feeding device of the injection molding machine in the related technology is in use, its spiral blade will rotate rapidly along with the rotating rod, causing the injection molding raw materials to be continuously conveyed rapidly, which is extremely likely to cause the overflow of the hopper of the injection molding machine and is also likely to cause the blockage of the injection molding machine due to excessive feeding.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0005] In order to solve the problem that when the feeding device of the injection molding machine in the related technology is in use, its spiral blade will rotate rapidly along with the rotating rod, causing the injection molding raw materials to be continuously conveyed rapidly, which is extremely likely to cause the overflow of the hopper of the injection molding machine and is also likely to cause the blockage of the injection molding machine due to excessive feeding, this application provides a feeding device for an injection molding machine.

[0006] The feeding device for an injection molding machine provided by this application adopts the following technical solution:

[0007] An injection molding machine feeding device includes a support base, on which a feed hopper is fixedly installed. Inside the feed hopper, a conical filter screen is connected through a vibration assembly, and a cross plate is fixedly installed at the top of the feed hopper. On the upper side of the cross plate, a drive motor is fixedly installed. The output shaft of the drive motor is fixedly connected to a rotating shaft. The bottom of the rotating shaft penetrates through the conical filter screen, and on the outer wall of the rotating shaft above the conical filter screen, a plurality of crushing knives are fixedly installed. The bottom of the feed hopper is communicated with a quantitative feeding cylinder. Inside the quantitative feeding cylinder, a quantitative wheel is rotatably arranged. A plurality of quantitative grooves are annularly opened on the outer side of the quantitative wheel, and on the outer wall of the quantitative feeding cylinder, a feeding motor for driving the quantitative wheel to rotate is fixedly installed.

[0008] Preferably, the vibration assembly includes a lifting groove annularly opened on the inner wall of the feed hopper. Inside the lifting groove, a guide post is fixedly installed. A spring is sleeved on the outer side of the guide post. Below the spring, a fixed block sleeved on the outer side of the guide post is provided. The conical filter screen is fixedly installed between a plurality of the fixed blocks, and on the bottom wall of the conical filter screen, a first arc-shaped convex block is fixedly installed. On the outer wall of the rotating shaft below the conical filter screen, a fixed plate is installed. On the top of the fixed plate, a second arc-shaped convex block matched with the first arc-shaped convex block is fixedly installed.

[0009] Preferably, on the outer wall of the rotating shaft below the fixed plate, multiple groups of stirring rods are installed. Each group of stirring rods is provided with a plurality of them around the axis of the rotating shaft.

[0010] Preferably, the end of the rotating shaft is rotatably connected to a shaft sleeve. On the outer side of the shaft sleeve, support rods are symmetrically installed. The ends of the support rods are fixedly installed on the inner wall of the feed hopper.

[0011] Preferably, at the four corners of the bottom of the support base, support legs are fixedly installed, and at the bottom of the support legs, anti-slip pads are fixedly installed.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] 1. In the present application, by communicating the bottom of the feed hopper with a quantitative feeding cylinder and cooperating with the quantitative wheel and the feeding motor, it is possible to start the feeding motor, and the feeding motor can rotate the quantitative wheel, so that the injection molding raw materials falling into the quantitative grooves can be discharged, realizing the quantitative feeding of the injection molding raw materials and improving the practicability of the device;

[0014] 2. In the present application, a lifting groove is provided inside the feed hopper, and a guide post, a spring, a fixed block, a fixing plate, a first arc-shaped convex block and a second arc-shaped convex block are cooperatively provided. When the rotating shaft rotates, the fixing plate and the second arc-shaped convex block can be driven to rotate. The second arc-shaped convex block will squeeze the first arc-shaped convex block and cooperate with the spring to drive the conical filter screen to vibrate up and down, avoiding blockage of the conical filter screen and improving the filtering efficiency of the conical filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of an embodiment of the application;

[0016] Figure 2 is a schematic diagram of a half-sectional structure of the feed hopper of an embodiment of the application;

[0017] Figure 3 is a schematic diagram of a bottom view structure of the conical filter screen of an embodiment of the application.

[0018] Description of the reference numerals: 1, support base; 2, feed hopper; 21, lifting groove; 22, guide post; 23, spring; 3, conical filter screen; 31, fixed block; 32, first arc-shaped convex block; 4, cross plate; 41, drive motor; 42, rotating shaft; 43, crushing knife; 44, stirring rod; 45, bushing; 46, support rod; 47, fixing plate; 48, second arc-shaped convex block; 5, quantitative feeding cylinder; 51, quantitative wheel; 52, quantitative groove; 6, feeding motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will further describe the present application in detail Figures 1 - 3 with reference to the accompanying drawings.

[0020] An embodiment of the present application discloses a feeding device for an injection molding machine. Referring to Figures 1 - 3 , a feeding device for an injection molding machine includes a support base 1, a feed hopper 2 is fixedly installed on the support base 1, a conical filter screen 3 is connected inside the feed hopper 2 through a vibration assembly, and a cross plate 4 is fixedly installed on the top of the feed hopper 2. A drive motor 41 is fixedly installed on the upper side of the cross plate 4. The output shaft of the drive motor 41 is fixedly connected to a rotating shaft 42. The bottom of the rotating shaft 42 penetrates through the conical filter screen 3, and a plurality of crushing knives 43 are fixedly installed on the outer wall of the rotating shaft 42 above the conical filter screen 3. The bottom of the feed hopper 2 is communicated with a quantitative feeding cylinder 5. A quantitative wheel 51 is rotatably arranged inside the quantitative feeding cylinder 5. A plurality of quantitative grooves 52 are annularly formed on the outer side of the quantitative wheel 51, and a feeding motor 6 for driving the quantitative wheel 51 to rotate is fixedly installed on the outer wall of the quantitative feeding cylinder 5.

[0021] Here, the injection molding raw material is added into the interior of the feed hopper 2, and then the drive motor 41 is started. The drive motor 41 can drive the rotating shaft 42 and the crushing knife 43 to rotate, so as to crush the injection molding raw material, and the crushed material is filtered and falls through the conical filter screen 3. Then, the feeding motor 6 is started. The feeding motor 6 can drive the metering wheel 51 to rotate, so as to realize the metering feeding of the injection molding raw material falling into the metering groove 52, improving the practicability of the device.

[0022] Refer to Figure 1 and Figure 2 As shown in the figure, the vibration assembly includes a lifting groove 21 annularly formed on the inner wall of the feed hopper 2. A guide post 22 is fixedly installed inside the lifting groove 21. A spring 23 is sleeved outside the guide post 22. A fixed block 31 sleeved outside the guide post 22 is arranged on the lower side of the spring 23. The conical filter screen 3 is fixedly installed among a plurality of fixed blocks 31. A first arc-shaped convex block 32 is fixedly installed on the bottom wall of the conical filter screen 3. A fixing plate 47 is installed on the outer wall of the rotating shaft 42 below the conical filter screen 3. A second arc-shaped convex block 48 matched with the first arc-shaped convex block 32 is fixedly installed on the top of the fixing plate 47.

[0023] Here, by rotating the rotating shaft 42, the rotating shaft 42 drives the fixing plate 47 and the second arc-shaped convex block 48 to rotate. The second arc-shaped convex block 48 will squeeze the first arc-shaped convex block 32, causing the conical filter screen 3 to move upward. When the second arc-shaped convex block 48 moves away from the first arc-shaped convex block 32, the spring 23 will squeeze the fixing plate 47 to push the conical filter screen 3 downward, enabling the conical filter screen 3 to vibrate up and down.

[0024] Refer to Figure 2 As shown in the figure, a plurality of groups of stirring rods 44 are installed on the outer wall of the rotating shaft 42 below the fixing plate 47. Each group of stirring rods 44 is provided with a plurality of rods arranged around the axis of the rotating shaft 42.

[0025] Here, by arranging the stirring rods 44 outside the rotating shaft 42, the injection molding raw material can be stirred to prevent the raw material from getting blocked.

[0026] Refer to Figure 2 As shown in the figure, a bushing 45 is rotatably connected to the end of the rotating shaft 42. Symmetrically arranged support rods 46 are installed outside the bushing 45. The ends of the support rods 46 are fixedly installed on the inner wall of the feed hopper 2.

[0027] Here, by connecting the bushing 45 to the end of the rotating shaft 42 and fixing the bushing 45 to the inner wall of the feed hopper 2 through the support rods 46, the stability of the rotating shaft 42 during rotation can be improved.

[0028] Refer to Figure 1 As shown in the figure, support legs are fixedly installed at the four corners of the bottom of the support base 1, and anti-slip pads are fixedly installed at the bottoms of the support legs.

[0029] By providing support legs and anti-slip pads, the support base 1 can be stably supported.

[0030] The implementation principle of the feeding device of the injection molding machine in the embodiment of the present application is as follows: during use, place the device at a designated position, then connect the device to the power supply, add the injection molding raw material into the inside of the feed hopper 2, and start the drive motor 41. The drive motor 41 drives the rotating shaft 42 and the crushing knife 43 to rotate, so that the injection molding raw material can be crushed. At the same time, the rotating shaft 42 will also drive the fixed plate 47 and the second arc-shaped convex block 48 to rotate. The second arc-shaped convex block 48 presses the first arc-shaped convex block 32, and in cooperation with the provided spring 23, the conical filter screen 3 can vibrate up and down, preventing the conical filter screen 3 from being blocked and improving the filtering efficiency of the conical filter screen 3. The filtered injection molding raw material falls to the bottom of the feed hopper 2 and is stirred by the stirring rod 44, which can prevent the injection molding raw material from accumulating and blocking the feeding. Subsequently, start the feeding motor 6, and the feeding motor 6 drives the metering wheel 51 to rotate. The metering wheel 51 can rotate and discharge the falling injection molding raw material, realizing the metering feeding operation of the injection molding raw material and improving the practicability of the device.

[0031] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0032] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0033] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

[0034] The above are all the preferred embodiments of the present application. It does not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A feeding device for an injection molding machine, comprising a support base (1), characterized in that: A feed hopper (2) is fixedly mounted on the support seat (1), the interior of the feed hopper (2) is connected to a conical filter screen (3) via a vibration assembly, and a transverse plate (4) is fixedly mounted on the top of the feed hopper (2), a drive motor (41) is fixedly mounted on the upper side of the transverse plate (4), an output shaft of the drive motor (41) is fixedly connected to a rotating shaft (42), the bottom of the rotating shaft (42) passes through the conical filter screen (3), and a plurality of crushing knives (43) are fixedly mounted on the outer wall of the rotating shaft (42) located on the upper side of the conical filter screen (3), a quantitative discharge barrel (5) is connected to the bottom of the feed hopper (2), a quantitative wheel (51) is rotatably mounted inside the quantitative discharge barrel (5), a plurality of quantitative grooves (52) are annularly provided on the outer side of the quantitative wheel (51), and a discharge motor (6) for driving the quantitative wheel (51) to rotate is fixedly mounted on the outer wall of the quantitative discharge barrel (5).

2. The feeding device for an injection molding machine according to claim 1, characterized in that: The vibration assembly comprises a lifting groove (21) annularly opened on the inner wall of the feed hopper (2), a guide column (22) is fixedly installed inside the lifting groove (21), a spring (23) is sleeved on the outer side of the guide column (22), a fixing block (31) sleeved on the outer side of the guide column (22) is arranged on the lower side of the spring (23), the conical filter screen (3) is fixedly installed between a plurality of the fixing blocks (31), and a first arc-shaped protrusion (32) is fixedly installed on the bottom wall of the conical filter screen (3), a fixing plate (47) is installed on the outer wall of the rotating shaft (42) located at the lower side of the conical filter screen (3), and a second arc-shaped protrusion (48) matching with the first arc-shaped protrusion (32) is fixedly installed on the top of the fixing plate (47).

3. The feeding device of an injection molding machine according to claim 2, characterized in that: The outer wall of the rotating shaft (42) located at the lower side of the fixed plate (47) is provided with a plurality of stirring rods (44), and each group of stirring rods (44) is provided with a plurality of stirring rods around the axis of the rotating shaft (42).

4. The feeding device for an injection molding machine according to claim 1, characterized in that: The end of the rotating shaft (42) is rotatably connected to a shaft sleeve (45), and a support rod (46) is symmetrically installed on the outer side of the shaft sleeve (45), and the end of the support rod (46) is fixedly installed on the inner wall of the feed hopper (2).

5. The feeding device for an injection molding machine according to claim 1, characterized in that: Support legs are fixedly installed at the four corners of the bottom of the support seat (1), and anti-slip pads are fixedly installed at the bottom of the support legs.

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