Feeding and mixing device for metal injection molding

Abstract

The utility model discloses a feeding and mixing device for metal injection molding, which comprises a mixing cylinder, a detachable sealing cover is connected to the right side of the mixing cylinder, a plurality of fixing components are connected to the outer wall of the mixing cylinder, the mixing cylinder is fixedly connected with the sealing cover through the fixing components, a motor is connected to the outer wall of the sealing cover, and the motor is fixedly connected with the sealing cover through the fixing components. The output end of the motor is connected with a rotating shaft, the rotating shaft penetrates through the sealing cover and extends into the mixing barrel, the outer wall, located in the mixing barrel, of the rotating shaft is connected with a plurality of spiral blades and a plurality of cleaning assemblies, each cleaning assembly comprises a coupler fixedly installed on the outer wall of the rotating shaft, and the outer wall of each coupler is symmetrically and movably connected with a connecting barrel; an adjustable connecting shaft is connected into the connecting cylinder, the other end of the connecting shaft is connected with a scraping plate, and the scraping plate is in contact with the inner wall of the mixing cylinder. According to the utility model, the rotating blade and the scraper rotate simultaneously, so that materials in the mixing cylinder can be rotated conveniently, the materials are mixed more uniformly, and the cleaning is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal processing, and in particular relates to a feeding and mixing device for metal injection molding. Background Art

[0002] Metal injection molding refers to a new type of powder metallurgy near-net forming technology derived from the plastic injection molding industry. Plastic injection molding technology can produce products of various complex shapes at a low price, but the strength of plastic products is not high. In order to improve its performance, metal or ceramic powder can be added to the plastic to obtain products with higher strength and good wear resistance. In the process of metal injection molding, the metal powder raw materials need to be fully mixed, so the corresponding feeding mixing device needs to be used.

[0003] However, there are some problems with the prior art: in actual use, during the actual mixing of metal powders, when the stirring rod rotates inside the shell, only the metal powder in the middle part of the shell can be stirred and fused, and the powder near the edge of the shell inside the device cannot be mixed. In addition, the metal powder adheres to the shell of the device and is not easy to clean, resulting in uneven mixing. It is not convenient to quickly discharge the raw materials after mixing. Therefore, we propose a feeding and mixing device for metal injection molding. Utility Model Content

[0004] In view of the problems existing in the above-mentioned technologies, the utility model provides a feeding and mixing device for metal injection molding, which solves the problems of uneven mixing and inconvenient and inconvenient to quickly discharge the raw materials after mixing.

[0005] The utility model is implemented as follows: a feeding and mixing device for metal injection molding comprises a mixing barrel, a detachable sealing cover is connected to the right side of the mixing barrel, a plurality of fixed components are connected to the outer wall of the mixing barrel, the mixing barrel is fixedly connected to the sealing cover through the fixed components, the outer wall of the sealing cover is connected to a motor, the output end of the motor is connected to a rotating shaft, the rotating shaft penetrates the sealing cover and extends to the inside of the mixing barrel, the outer wall of the rotating shaft located inside the mixing barrel is connected to a plurality of spiral blades and a plurality of cleaning components, the cleaning component comprises a coupling fixedly mounted on the outer wall of the rotating shaft, the outer wall of the coupling is symmetrically and movably connected to a connecting barrel, the inside of the connecting barrel is connected to an adjustable connecting shaft, the other end of the connecting shaft is connected to a scraper, and the scraper contacts the inner wall of the mixing barrel. The utility model drives the rotating shaft through a motor to drive the rotating blades and the scraper to rotate simultaneously, so as to facilitate the rotation of the material inside the mixing barrel, so that the material is mixed more evenly, and when the scraper rotates, the material adhering to the inner wall of the mixing barrel is dropped, so as to facilitate cleaning.

[0006] As a preferred embodiment of the utility model, a sealing platform is provided on the right inner edge of the mixing cylinder, and fixing holes are symmetrically provided on the right outer wall of the mixing cylinder, and a first spring is connected inside the fixing hole.

[0007] As a preferred embodiment of the utility model, the sealing cover is symmetrically connected to a latch shaft that fits with the fixing hole on one side close to the mixing barrel, the end of the latch shaft extending into the fixing hole contacts the first spring, and the sealing cover is connected to a sealing rubber ring on the side extending into the mixing barrel, and the sealing rubber ring contacts the sealing platform.

[0008] As a preferred embodiment of the utility model, the fixing assembly includes a fixing block connected to the outer wall of the mixing barrel, and a locking block connected to the outer wall of the sealing cover, an inner cavity is provided on the right side of the fixing block, and the inner wall of the inner cavity is connected to a plurality of latch teeth with a trapezoidal cross-section, a movable groove is provided on the left outer wall of the locking block, a movable block is connected to the inside of the movable groove, a second spring is connected to the lower end of the movable block, and the other end of the second spring is connected to the inner wall of the movable groove, a clamping plate is connected to the left side of the movable block, the clamping plate extends into the inner cavity, and the outer wall of the lower end of the clamping plate located inside the inner cavity is connected to matching teeth matching the latch teeth.

[0009] As a preferred embodiment of the utility model, a first threaded hole is provided on the outer wall of the fixing block away from the mixing barrel, a first stud is threadedly connected inside the first threaded hole, the first stud extends into the inner cavity and is connected to a pressing plate, the pressing plate is in contact with the clamping plate, and a second threaded hole is provided on the outer wall of the locking block away from the sealing cover, a second stud is threadedly connected inside the second threaded hole, the second stud extends into the movable groove and is fixedly connected to the movable block.

[0010] As a preferred embodiment of the utility model, the inner wall of the connecting cylinder on the side away from the coupling is provided with a plurality of grooves, the inner wall of the connecting cylinder is provided with a plurality of rotation grooves connected to each groove, a plurality of limiting holes are provided inside the rotation groove, and the inner wall of the connecting cylinder is connected to a fourth spring.

[0011] As a preferred embodiment of the utility model, the outer wall of the connecting shaft is connected to a plurality of protrusions, the protrusions are matched with the grooves and the rotation grooves, the outer wall of the protrusion is provided with a step hole, a telescopic block is connected to the inside of the step hole, one end of the telescopic block located inside the step hole is connected to a third spring, the other end of the third spring is connected to the inner wall of the step hole, one end of the telescopic block extending to the step hole is matched with the limit hole, and the other end of the connecting shaft is welded to the scraper.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model drives the rotating blades and the scraper to rotate simultaneously, so as to rotate the materials inside the mixing barrel, so that the materials are mixed more evenly. When the scraper rotates, the materials adhering to the inner wall of the mixing barrel fall off, which is convenient for cleaning;

[0014] 2. The utility model is connected with the mixing cylinder through the sealing cover, so that the clamping plate can be extended into the inner cavity, and the second stud is rotated to drive the movable block, and the movable block drives the second spring to move, so that the matching teeth and the clamping teeth are engaged with each other, and the pressing plate is driven by the first stud to contact with the clamping plate, so that the connection between the locking block and the fixed block is more stable, thereby improving the stability of the connection between the sealing cover and the mixing cylinder;

[0015] 3. The utility model extends the connecting shaft into the connecting tube and contacts the fourth spring. The protrusion is located in the groove. When the protrusion is located in the rotating groove, the connecting tube is rotated to facilitate the telescopic block located on the protrusion to drive the third spring to contract into the step hole. When the step hole corresponds to the limiting hole, the third spring rebounds, which facilitates the telescopic block to extend into the limiting hole and fix it in a limited position, so as to facilitate the adjustment of the length of the connecting shaft extending into the connecting tube, thereby facilitating the adjustment of the scraper and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram provided by an embodiment of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of a mixing cylinder provided by an embodiment of the utility model;

[0019] Figure 4 It is a side view schematic diagram of a mixing cylinder provided by an embodiment of the utility model;

[0020] Figure 5 It is a cross-sectional schematic diagram of a fixing assembly provided in an embodiment of the utility model;

[0021] Figure 6 It is a front view schematic diagram of a cleaning component provided by an embodiment of the utility model;

[0022] Figure 7 It is a front view schematic diagram of a connecting tube provided by an embodiment of the utility model;

[0023] Figure 8 It is a cross-sectional schematic diagram of the connection provided by the embodiment of the utility model;

[0024] Fig. 9 It is a schematic cross-sectional view of a connecting shaft provided in an embodiment of the utility model.

[0025] In the figure: 1, mixing cylinder; 12, fixing hole; 13, sealing platform; 14, first spring; 2, fixing assembly; 21, fixing block; 211, inner cavity; 212, first threaded hole; 213, clamping tooth; 22, first stud; 221, pressing plate; 23, locking block; 231, movable groove; 232, second spring; 233, second threaded hole; 24, movable block; 241, clamping plate; 242, matching tooth; 25, second stud; 3, sealing cover; 31, sealing rubber ring; 4, motor; 41, rotating shaft; 42, spiral blade; 5, cleaning assembly; 51, scraper; 52, connecting shaft; 521, protrusion; 522, step hole; 523, telescopic block; 524, third spring; 53, connecting cylinder; 531, fourth spring; 532, groove; 533, rotating groove; 534, limiting hole; 54, coupling. DETAILED DESCRIPTION

[0026] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0027] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0028] Embodiment 1:

[0029] like Figure 1 As shown, an embodiment of the utility model provides a feeding and mixing device for metal injection molding, comprising a mixing barrel 1, a detachable sealing cover 3 is connected to the right side of the mixing barrel 1, a plurality of fixing components 2 are connected to the outer wall of the mixing barrel 1, the mixing barrel 1 is fixedly connected to the sealing cover 3 through the fixing components 2, the outer wall of the sealing cover 3 is connected to a motor 4, the output end of the motor 4 is connected to a rotating shaft 41, the rotating shaft 41 passes through the sealing cover 3 and extends to the inside of the mixing barrel 1, the outer wall of the rotating shaft 41 located inside the mixing barrel 1 is connected to a plurality of spiral blades 42 and a plurality of cleaning components 5, the cleaning component 5 comprises a coupling 54 fixedly mounted on the outer wall of the rotating shaft 41, the outer wall of the coupling 54 is symmetrically and movably connected to a connecting barrel 53, the inside of the connecting barrel 53 is connected to an adjustable connecting shaft 52, the other end of the connecting shaft 52 is connected to a scraper 51, and the scraper 51 contacts the inner wall of the mixing barrel 1. The utility model drives the rotating shaft 41 through the motor 4 to drive the rotating blades and the scraper 51 to rotate simultaneously, so as to rotate the materials inside the mixing barrel 1 so that the materials are mixed more evenly. When the scraper 51 rotates, the materials adhering to the inner wall of the mixing barrel 1 fall off, which is convenient for cleaning.

[0030] like Figures 2 to 3As shown, a sealing platform 13 is provided on the inner edge of the right side of the mixing cylinder 1, and a fixing hole 12 is symmetrically provided on the outer wall of the right side of the mixing cylinder 1, and a first spring 14 is connected to the inside of the fixing hole 12; a latch shaft 32 that fits with the fixing hole 12 is symmetrically connected to the side of the sealing cover 3 close to the mixing cylinder 1, and one end of the latch shaft 32 extending into the fixing hole 12 contacts with the first spring 14, and a sealing rubber ring 31 is connected to the side of the sealing cover 3 extending into the interior of the mixing cylinder 1, and the sealing rubber ring 31 contacts with the sealing platform 13; the latch shaft 32 is inserted into the fixing hole 12 to contact with the first spring 14, so that the sealing rubber ring 31 is located on the sealing platform 13, thereby facilitating the connection between the sealing cover 3 and the mixing cylinder 1.

[0031] like Figures 1 to 5 As shown, the fixing assembly 2 includes a fixing block 21 connected to the outer wall of the mixing barrel 1, and a locking block 23 connected to the outer wall of the sealing cover 3, the fixing block 21 is provided with an inner cavity 211 on the right side, and the inner wall of the inner cavity 211 is connected with a plurality of latch teeth 213 with a trapezoidal cross section, a movable groove 231 is provided on the left outer wall of the locking block 23, and a movable block 24 is connected inside the movable groove 231, and a second spring 232 is connected to the lower end of the movable block 24, and the other end of the second spring 232 is connected to the inner wall of the movable groove 231, and a clamping plate 241 is connected to the left side of the movable block 24, and the clamping plate 241 extends into the inner cavity 211, and the outer wall of the lower end of the clamping plate 241 located inside the inner cavity 211 is connected with a matching tooth 242 matching with the latch tooth 213; a first threaded hole 212 is provided on the outer wall of the side of the fixing block 21 away from the mixing barrel 1, and the first threaded hole 212 is threadedly connected with a first The first stud 22 extends into the inner cavity 211 and is connected with a pressing plate 221, and the pressing plate 221 contacts the clamping plate 241. The outer wall of the locking block 23 on one side away from the sealing cover 3 is provided with a second threaded hole 233, and the second threaded hole 233 is threadedly connected with a second stud 25, and the second stud 25 extends into the movable groove 231 and is fixedly connected with the movable block 24; the sealing cover 3 is connected to the mixing cylinder 1 through the sealing cover 3, so that the clamping plate 241 extends into the inner cavity 211, and the second stud 25 is rotated to drive the movable block 24, and the movable block 24 drives the second spring 232 to move, so that the matching teeth 242 and the clamping teeth 213 are mutually matched and clamped, and the first stud 22 is rotated to drive the pressing plate 221, and the pressing plate 221 is driven to contact with the clamping plate 241, so that the connection between the locking block 23 and the fixed block 21 is more stable, thereby improving the stability of the connection between the sealing cover 3 and the mixing cylinder 1.

[0032] like Figures 6 to 9As shown, the inner wall of the connecting cylinder 53 on one side away from the coupling 54 is provided with a plurality of grooves 532, the inner wall of the connecting cylinder 53 is provided with a plurality of rotation grooves 533 connected to each groove 532, a plurality of limiting holes 534 are provided inside the rotation grooves 533, and a fourth spring 531 is connected to the inner wall of the connecting cylinder 53; the outer wall of the connecting shaft 52 is connected with a plurality of protrusions 521, the protrusions 521 are fitted with the grooves 532 and the rotation grooves 533, the outer wall of the protrusion 521 is provided with a step hole 522, the step hole 522 is connected with a telescopic block 523, one end of the telescopic block 523 located inside the step hole 522 is connected with a third spring 524, the other end of the third spring 524 is connected to the inner wall of the step hole 522, and the telescopic block 523 is connected to the inner wall of the step hole 522. The end of the block 523 extending to the step hole 522 is matched with the limiting hole 534, and the other end of the connecting shaft 52 is welded to the scraper 51; the connecting shaft 52 extends into the connecting tube 53 to contact the fourth spring 531, and the protrusion 521 is located in the groove 532. When the protrusion 521 is located at the position of the rotating groove 533, the connecting tube 53 is rotated, so that the telescopic block 523 located on the protrusion 521 drives the third spring 524 to shrink into the step hole 522. When the step hole 522 corresponds to the limiting hole 534, the third spring 524 rebounds, so that the telescopic block 523 is extended into the limiting hole 534, and it is limited and fixed, so that the length of the connecting shaft 52 extending into the connecting tube 53 can be adjusted, thereby facilitating the adjustment of the scraper 51 and improving practicality.

[0033] Working principle:

[0034] When in use, first connect the sealing cover 3 to the mixing barrel 1, insert the latch shaft 32 into the fixing hole 12, and extend the clamping plate 241 into the inner cavity 211, rotate the second stud 25 to drive the movable block 24, and the movable block 24 drives the second spring 232 to move, so that the matching teeth 242 and the clamping teeth 213 cooperate with each other and engage with each other, and by rotating the first stud 22, drive the pressing plate 221, and the pressing plate 221 drives the contact with the clamping plate 241 to fix the sealing cover 3 and the mixing barrel 1, add materials through the feeding funnel provided on the mixing barrel 1, start the motor 4, and the motor 4 drives the rotating blades and the scraper 51 to rotate at the same time, so as to rotate the materials inside the mixing barrel 1 and mix the materials more evenly. When the scraper 51 rotates, the materials adhering to the inner wall of the mixing barrel 1 fall off, which is convenient for cleaning.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding and mixing device for metal injection molding, comprising a mixing barrel (1), characterized in that: The right side of the mixing barrel (1) is connected to a detachable sealing cover (3); the outer wall of the mixing barrel (1) is connected to a plurality of fixing components (2); the mixing barrel (1) is fixedly connected to the sealing cover (3) via the fixing components (2); the outer wall of the sealing cover (3) is connected to a motor (4); the output end of the motor (4) is connected to a rotating shaft (41); the rotating shaft (41) passes through the sealing cover (3) and extends to the inside of the mixing barrel (1); the outer wall of the rotating shaft (41) located inside the mixing barrel (1) is connected to a plurality of spiral blades (42) and a plurality of cleaning components (5); the cleaning component (5) comprises a coupling (54) fixedly mounted on the outer wall of the rotating shaft (41); the outer wall of the coupling (54) is symmetrically and movably connected to a connecting barrel (53); the inside of the connecting barrel (53) is connected to an adjustable connecting shaft (52); the other end of the connecting shaft (52) is connected to a scraper (51); the scraper (51) contacts the inner wall of the mixing barrel (1).

2. A feeding and mixing device for metal injection molding as claimed in claim 1, characterized in that: A sealing platform (13) is provided on the right inner edge of the mixing cylinder (1), and fixing holes (12) are symmetrically provided on the right outer wall of the mixing cylinder (1), wherein a first spring (14) is connected inside the fixing hole (12).

3. A feeding and mixing device for metal injection molding as claimed in claim 1, characterized in that: A latch shaft (32) that fits in with the fixing hole (12) is symmetrically connected to one side of the sealing cover (3) close to the mixing cylinder (1); one end of the latch shaft (32) that extends into the fixing hole (12) contacts the first spring (14); and a sealing rubber ring (31) is connected to one side of the sealing cover (3) that extends into the mixing cylinder (1); and the sealing rubber ring (31) contacts the sealing platform (13).

4. A feeding and mixing device for metal injection molding as claimed in claim 1, characterized in that: The fixing assembly (2) comprises a fixing block (21) connected to the outer wall of the mixing barrel (1), and a locking block (23) connected to the outer wall of the sealing cover (3); an inner cavity (211) is provided on the right side of the fixing block (21); a plurality of latching teeth (213) with a trapezoidal cross section are connected to the inner wall of the inner cavity (211); a movable groove (231) is provided on the left outer wall of the locking block (23); a movable block (24) is connected inside the movable groove (231); a second spring (232) is connected to the lower end of the movable block (24); the other end of the second spring (232) is connected to the inner wall of the movable groove (231); a clamping plate (241) is connected to the left side of the movable block (24); the clamping plate (241) extends into the inner cavity (211); and a matching tooth (242) matching with the latching tooth (213) is connected to the outer wall of the lower end of the clamping plate (241) located inside the inner cavity (211).

5. A feeding and mixing device for metal injection molding as claimed in claim 4, characterized in that: A first threaded hole (212) is provided on the outer wall of the fixing block (21) at a side away from the mixing barrel (1); a first stud (22) is threadedly connected inside the first threaded hole (212); the first stud (22) extends into the inner cavity (211) and is connected to a pressing plate (221); the pressing plate (221) is in contact with a clamping plate (241); a second threaded hole (233) is provided on the outer wall of the locking block (23) at a side away from the sealing cover (3); a second stud (25) is threadedly connected inside the second threaded hole (233); the second stud (25) extends into the movable groove (231) and is fixedly connected to the movable block (24).

6. A feeding and mixing device for metal injection molding as claimed in claim 1, characterized in that: A plurality of grooves (532) are provided on the inner wall of the connecting cylinder (53) at a side away from the coupling (54); a plurality of rotation grooves (533) connected to each groove (532) are provided on the inner wall of the connecting cylinder (53); a plurality of limiting holes (534) are provided inside the rotation groove (533); and a fourth spring (531) is connected to the inner wall of the connecting cylinder (53).

7. A feeding and mixing device for metal injection molding as claimed in claim 1, characterized in that: The outer wall of the connecting shaft (52) is connected with a plurality of protrusions (521), and the protrusions (521) are matched with the grooves (532) and the rotating grooves (533). The outer wall of the protrusion (521) is provided with a step hole (522), and a telescopic block (523) is connected inside the step hole (522). One end of the telescopic block (523) located inside the step hole (522) is connected with a third spring (524), and the other end of the third spring (524) is connected to the inner wall of the step hole (522). One end of the telescopic block (523) extending to the step hole (522) is matched with the limiting hole (534), and the other end of the connecting shaft (52) is welded to the scraper (51).

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