Feeding mechanism of injection molding machine

Abstract

The utility model relates to a feeding mechanism of an injection molding machine, which belongs to the field of injection molding machines and comprises a base and a feeding cylinder, and an adjusting structure for adjusting the position of the feeding cylinder is arranged on the upper surface of the base. The adjusting structure comprises two frame bodies fixedly connected to the upper surface of the base, a top plate fixedly connected between the tops of the two frame bodies, two first motors fixedly connected to the upper surface of the top plate, threaded rods fixedly connected to output shafts of the first motors, and threaded blocks in threaded connection to the outer sides of the threaded rods. The fixing plate is fixedly connected between the front faces of the two threaded blocks, the two connecting plates are fixedly connected to the front face of the fixing plate, the guide rods are fixedly connected to the opposite side walls of the two connecting plates correspondingly, and the mounting blocks are slidably connected to the outer sides of the guide rods. According to the feeding mechanism of the injection molding machine, the first motor is adopted to drive the matching structure of the threaded rod and the threaded block, so that the accurate adjustment of the feeding cylinder in the vertical direction is realized, the adjustment process is stable and continuous, and the adjustment precision is greatly improved.

Description

Technical Field

[0001] The utility model relates to a feeding mechanism of an injection molding machine, belonging to the field of injection molding machines. Background Art

[0002] In the injection molding process, the feeding mechanism is a key component of the injection molding machine, and its performance directly affects the quality and production efficiency of the injection molded products.

[0003] The feed mechanisms of injection molding machines often suffer from inflexible adjustment and uneven feeding, making them unable to meet the high-precision, high-efficiency, and high-quality demands of modern injection molding production. Specifically, the feed mechanisms lack a suitable mechanism for position adjustment, making them unable to adapt to injection molding machines of varying heights and the production requirements of diverse injection molded products. Furthermore, during the feeding process, insufficient material flow and mixing uniformity within the feed barrel often lead to uneven color and unstable physical properties in the molded products, seriously impacting product quality and market competitiveness. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a feeding mechanism for an injection molding machine, which has the advantages of being adaptable to injection molding machines of different models and heights and improving the mixing uniformity of materials.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose of adapting to injection molding machines of different models and heights and improving the mixing uniformity of materials, the utility model provides the following technical solutions: an injection molding machine feeding mechanism, comprising a base and a feeding barrel, wherein the upper surface of the base is provided with an adjustment structure for adjusting the position of the feeding barrel;

[0008] The adjustment structure includes two frames fixedly connected to the upper surface of the base, a top plate fixedly connected between the tops of the two frames, two first motors fixedly connected to the upper surface of the top plate, a threaded rod fixedly connected to the output shaft of the first motor, a threaded block threadedly connected to the outside of the threaded rod, a fixed plate fixedly connected between the front faces of the two threaded blocks, two connecting plates fixedly connected to the front face of the fixed plate, guide rods respectively fixedly connected to opposite side walls of the two connecting plates, and a mounting block slidably connected to the outside of the guide rod.

[0009] Furthermore, the four corners of the bottom of the base are fixedly connected with movable wheels, and the two frames are respectively arranged on the left side and the right side of the upper surface of the base.

[0010] Furthermore, the two first motors are respectively arranged on the left side and the right side of the upper surface of the top plate, and the positions of the first motors correspond to the positions of the frame on the same side.

[0011] Furthermore, the bottom end of the threaded rod sequentially passes through the upper surface of the top plate, the bottom of the top plate, the top of the corresponding frame and the thread groove of the corresponding threaded block and is rotatably connected to the inner bottom wall of the corresponding frame.

[0012] Furthermore, the length and width of the threaded block are respectively equal to the length and width of the interior of the frame, and the two connecting plates are respectively arranged on the left side and the right side of the front face of the fixing plate.

[0013] Furthermore, the front and rear ends of the left guide rod are bent to the left and fixedly connected to the right side wall of the left connecting plate, and the front and rear ends of the right guide rod are bent to the right and fixedly connected to the left side wall of the right connecting plate.

[0014] Furthermore, the feed barrel is fixedly connected between the opposite side walls of the two mounting blocks, a support plate is fixedly connected between the inner front side wall and the inner rear side wall of the feed barrel, the upper surface of the support plate is fixedly connected to the second motor, the output shaft of the second motor is fixedly connected to the stirring rod, and the outer side of the stirring rod is fixedly connected to a stirring paddle.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a feeding mechanism for an injection molding machine, which has the following beneficial effects:

[0017] The feeding mechanism of the injection molding machine realizes precise adjustment of the feed barrel in the vertical direction by adopting the matching structure of the threaded rod and the threaded block driven by the first motor, and the adjustment process is smooth and continuous, which greatly improves the adjustment accuracy. At the same time, the dual-motor design ensures synchronous adjustment on both sides, enhances the flexibility and stability of adjustment, and meets the production needs of different injection molding products. In addition, the built-in second motor drives the stirring rod and stirring paddle to rotate, effectively promoting the uniform mixing of materials in the feed barrel, avoiding material agglomeration or stratification, and ensuring the uniformity and consistency of the injection molding raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a top view of the fixing plate, connecting plate, guide rod and mounting block in the structure of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the base, frame and top plate in the structure of the utility model;

[0021] Figure 4 It is a front view of the utility model.

[0022] In the figure: 1. Base; 101. Moving wheel; 2. Feed barrel; 3. Frame; 4. Top plate; 5. First motor; 6. Threaded rod; 7. Threaded block; 8. Fixed plate; 9. Connecting plate; 10. Guide rod; 11. Mounting block; 12. Support plate; 13. Second motor; 14. Stirring rod; 15. Stirring paddle. DETAILED DESCRIPTION

[0023] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4 A feeding mechanism of an injection molding machine includes a base 1 and a feeding barrel 2. The upper surface of the base 1 is provided with an adjusting structure for adjusting the position of the feeding barrel 2.

[0025] like Figure 1 As shown, the adjustment structure includes two frames 3 fixedly connected to the upper surface of the base 1, a top plate 4 fixedly connected between the tops of the two frames 3, two first motors 5 fixedly connected to the upper surface of the top plate 4, a threaded rod 6 fixedly connected to the output shaft of the first motor 5, a threaded block 7 threadedly connected to the outside of the threaded rod 6, a fixing plate 8 fixedly connected between the front faces of the two threaded blocks 7, two connecting plates 9 fixedly connected to the front face of the fixing plate 8, a guide rod 10 respectively fixedly connected to the opposite side walls of the two connecting plates 9, and a mounting block 11 slidably connected to the outside of the guide rod 10.

[0026] It should be noted that the four corners of the bottom of the base 1 are fixedly connected with moving wheels 101 , and the two frames 3 are respectively arranged on the left and right sides of the upper surface of the base 1 .

[0027] The two first motors 5 are respectively arranged on the left side and the right side of the upper surface of the top plate 4 , and the positions of the first motors 5 correspond to the positions of the frame 3 on the same side.

[0028] The bottom end of the threaded rod 6 sequentially passes through the upper surface of the top plate 4, the bottom of the top plate 4, the top of the corresponding frame 3 and the thread groove of the corresponding threaded block 7 and is rotatably connected to the inner bottom wall of the corresponding frame 3.

[0029] The length and width of the threaded block 7 are respectively equal to the length and width of the interior of the frame 3 , and the two connecting plates 9 are respectively arranged on the left side and the right side of the front of the fixing plate 8 .

[0030] The front and rear ends of the left guide rod 10 are bent to the left and fixedly connected to the right side wall of the left connecting plate 9, and the front and rear ends of the right guide rod 10 are bent to the right and fixedly connected to the left side wall of the right connecting plate 9.

[0031] The feed barrel 2 is fixedly connected between the opposite side walls of the two mounting blocks 11, and a support plate 12 is fixedly connected between the inner front side wall and the inner rear side wall of the feed barrel 2. The upper surface of the support plate 12 is fixedly connected to the second motor 13, and the output shaft of the second motor 13 is fixedly connected to the stirring rod 14, and the outer side of the stirring rod 14 is fixedly connected to the stirring paddle 15.

[0032] In addition, the first motor 5 and the second motor 13 are equipped with an overload protection device, which automatically cuts off the power supply when the motor load exceeds the set value to prevent motor damage and safety accidents.

[0033] A programmable logic controller is used to automatically control the entire feeding mechanism to achieve precise control of motor start, stop, speed adjustment and position feedback.

[0034] The working principle of the above embodiment is:

[0035] The two first motors 5 are respectively installed on the left and right sides of the top plate 4, and their positions correspond to the frame 3 below. When the first motor 5 is started, its output shaft drives the threaded rod 6 to rotate, and the rotational motion of the threaded rod 6 is converted into the linear motion of the threaded block 7 through a threaded connection. Since the threaded block 7 is confined in the frame 3, and its length and width match the internal dimensions of the frame 3, the threaded block 7 can only move along the axial direction of the threaded rod 6, thereby adjusting the height of the feed barrel 2, and the two threaded blocks 7 are connected by a fixed plate 8 to ensure that they move synchronously, thereby ensuring stability and consistency during the adjustment process. The connecting plate 9 is fixed to the front side of the fixed plate 8, and the guide rod 10 installed thereon provides a sliding track for the mounting block 11. The mounting block 11 slides along the guide rod 10, thereby driving the feed barrel 2 to move in the front and rear horizontal directions;

[0036] In addition, the second motor 13 is installed on the support plate 12 inside the feed barrel 2, and its output shaft drives the stirring rod 14 and the stirring paddle 15 to rotate. The rotation of the stirring paddle 15 promotes the uniform mixing of the materials in the feed barrel 2, avoids the agglomeration or stratification of the materials, and ensures the uniformity and consistency of the injection molding raw materials. Moreover, through the stirring action, the additives, pigments, etc. in the raw materials can be more evenly dispersed in the base material, thereby improving the color uniformity and physical properties of the injection molded products. At the same time, stirring also helps to reduce the generation of bubbles and impurities, further improving the quality of the injection molded products.

[0037] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0038] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for an injection molding machine, comprising a base (1) and a feeding barrel (2), characterized in that: The upper surface of the base (1) is provided with an adjustment structure for adjusting the position of the feed cylinder (2); The adjustment structure comprises two frames (3) fixedly connected to the upper surface of the base (1), a top plate (4) fixedly connected between the tops of the two frames (3), two first motors (5) fixedly connected to the upper surface of the top plate (4), a threaded rod (6) fixedly connected to the output shaft of the first motor (5), a threaded block (7) threadedly connected to the outside of the threaded rod (6), a fixing plate (8) fixedly connected between the front faces of the two threaded blocks (7), two connecting plates (9) fixedly connected to the front face of the fixing plate (8), a guide rod (10) fixedly connected to opposite side walls of the two connecting plates (9), and a mounting block (11) slidably connected to the outside of the guide rod (10).

2. The feeding mechanism of an injection molding machine according to claim 1, characterized in that: The four corners of the bottom of the base (1) are respectively fixedly connected with moving wheels (101), and the two frames (3) are respectively arranged on the left side and the right side of the upper surface of the base (1).

3. The feeding mechanism of an injection molding machine according to claim 1, characterized in that: The two first motors (5) are respectively arranged on the left side and the right side of the upper surface of the top plate (4), and the positions of the first motors (5) correspond to the positions of the frame (3) on the same side.

4. The feeding mechanism of an injection molding machine according to claim 1, characterized in that: The bottom end of the threaded rod (6) sequentially passes through the upper surface of the top plate (4), the bottom of the top plate (4), the top of the corresponding frame (3), and the thread groove of the corresponding threaded block (7), and is rotatably connected to the inner bottom wall of the corresponding frame (3).

5. The feeding mechanism of an injection molding machine according to claim 1, characterized in that: The length and width of the threaded block (7) are respectively equal to the length and width of the interior of the frame (3), and the two connecting plates (9) are respectively arranged on the left side and the right side of the front of the fixing plate (8).

6. The feeding mechanism of an injection molding machine according to claim 1, characterized in that: The front and rear ends of the left guide rod (10) are both bent to the left and fixedly connected to the right side wall of the left connecting plate (9), and the front and rear ends of the right guide rod (10) are both bent to the right and fixedly connected to the left side wall of the right connecting plate (9).

7. The feeding mechanism of an injection molding machine according to claim 1, characterized in that: The feed barrel (2) is fixedly connected between opposite side walls of two mounting blocks (11); a support plate (12) is fixedly connected between the inner front side wall and the inner rear side wall of the feed barrel (2); a second motor (13) is fixedly connected to the upper surface of the support plate (12); an output shaft of the second motor (13) is fixedly connected to a stirring rod (14); and a stirring paddle (15) is fixedly connected to the outer side of the stirring rod (14).

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