Stirring paddle for wet type granulator

Abstract

A stirring paddle for a wet type granulator comprises a stirring base and three blades, the outer end of each blade is provided with a blade head formed through spiral bending, each blade head is provided with an assembly base face, a positioning unit is arranged on each assembly base face, a locking node is arranged on each positioning unit, each blade is provided with an assembly matching face and an assembly side face, and the assembly matching faces are matched with the assembly side faces. The assembly matching surface is in contact with the assembly base surface and is provided with a positioning node for limiting the final assembly position of the blade head on the blade, the assembly side surface is provided with a guide channel communicated with the locking node, and the guide channel is used for enabling the locking unit to pass through and be combined with the locking node so as to limit the positioning unit in the positioning node. The utility model has the beneficial effects that the paddle head is detachably connected with the paddle, so that only the paddle head needs to be replaced during maintenance, the whole paddle head does not need to be replaced, and meanwhile, the paddle head is bent to obtain a spiral acting surface capable of holding materials, so that the condition of layering is avoided under high-speed rotation; and the content of the components in each tablet is the same.

Description

Technical Field

[0001] The utility model relates to the technical field of wet granulation, in particular to a stirring paddle for a wet granulator. Background Art

[0002] Wet granulator is used to grind wet powder into required granules, and also to crush block dry materials into required granules. The general use process of wet granulator is as follows: mix the required materials, start the machine, pour the mixed materials into the bucket, and the swinging action of the rotating drum squeezes the materials through the screen to form granules.

[0003] Publication (announcement) number: CN217909840U discloses a wet machine stirring blade, including a fixed sleeve, which is fixed to the bottom end of the stirring shaft, and three stirring blades are arranged on the circumference of the fixed sleeve. The stirring blades are inclined, and at least one bending line is provided on the stirring blade. The outer part of the stirring blade is bent along the bending line toward the rotation direction of the stirring blade to form a first bending portion, and the bending angle of the first bending portion is 30°-55°. The first bent portion of this stirring blade is used as a paddle head, which is obtained by bending the stirring blade into an integral part. However, this method has a defect, namely, this bending form causes the paddle head to have a relatively flat angle, which can only be used for stirring low-density materials (i.e. corn starch), but not for stirring high-density materials (i.e. calcium powder, magnesium powder, iron-containing materials, etc.). As a result, when stirring mixed materials (i.e. containing low-density materials and high-density materials), since the angle of the conventional material paddle is too flat and the main force direction is obliquely upward, high-speed rotation will cause high and low density materials to be stratified (low density on the top, high density on the bottom). The stratification will cause the ingredient content of each tablet to be different, affecting the use effect. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a stirring paddle for a wet granulator to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve the technical problem: the stirring paddle for a wet granulator comprises a stirring seat and three paddles obliquely arranged on the circumference of the stirring seat, the outer end of each paddle is provided with a paddle head formed by spiral bending, the paddle head has an assembly base surface, a positioning unit is provided on the assembly base surface, a locking node is provided on the positioning unit, the paddle has an assembly mating surface and an assembly side surface, the assembly mating surface contacts the assembly base surface and is provided with a positioning node for limiting the final assembly position of the paddle head on the paddle, the assembly side surface is provided with a guide channel interconnected with the locking node, the guide channel is for the locking unit to be combined with the locking node to limit the positioning unit within the positioning node.

[0006] Further improvement, the positioning node includes a rectangular enclosing wall, and a first insertion space defined within the rectangular enclosing wall and allowing the positioning unit to be placed therein, and the rectangular enclosing wall abuts against the positioning unit when the positioning unit is placed in the first insertion space.

[0007] For further improvement, the positioning unit is configured as an insertion rod whose structure is adapted to the positioning node and is placed in the first insertion space, the locking node is arranged on the insertion rod, and the rectangular enclosing wall is divided into a sliding part and a tight part along the assembly guide, and the insertion rod and the sliding part have a clearance fit and a tight fit with the tight part.

[0008] Further improvement is made, the matching clearance between the rectangular enclosing wall and the insertion rod is gradually reduced along the assembly guide.

[0009] Further improvement, the locking node includes a circular enclosing wall, and a second insertion space defined within the circular enclosing wall and allowing the locking unit to be placed therein, and the circular enclosing wall abuts against the locking unit when the locking unit is placed in the second insertion space.

[0010] For further improvement, the locking unit is configured as a screw whose configuration is adapted to the locking node and is placed in the second insertion space, and the inner circumferential surface of the guide channel close to the locking node and the circular enclosing wall are both provided with internal threads that cooperate with the screw threads.

[0011] Further improvement, the width of the paddle gradually increases from the inner end to the outer end.

[0012] The beneficial effects of the utility model are:

[0013] The paddle head of the utility model is detachably connected to the paddle, so that during maintenance, only the paddle head needs to be replaced instead of the entire paddle head, thereby reducing costs. At the same time, the bending form of the paddle head is obtained in the form of spiral bending. Such a bending method presents a higher angle, that is, a spiral action surface that can hold the material can be obtained, so that the main force direction is horizontal, and stratification will not occur under high-speed rotation, so that the component content of each tablet is the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the paddle and the paddle head of the utility model;

[0016] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram of part A;

[0017] Figure 4 It is a schematic diagram of the full cross-section structure of the paddle and the paddle head of the utility model. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Referring to the accompanying drawings: This stirring paddle for a wet granulator includes a stirring seat 1, and three paddles 2 obliquely arranged on the circumference of the stirring seat 1, the outer end of each paddle 2 is provided with a paddle head 3 formed by spiral bending, the paddle head 3 has an assembly base surface 31, a positioning unit 4 is arranged on the assembly base surface 31, and a locking node 5 is arranged on the positioning unit 4. The paddle 2 has an assembly mating surface 21 and an assembly side surface 22. The assembly mating surface 21 contacts the assembly base surface 31 and is provided with a positioning node 6 that limits the final assembly position of the paddle head 3 on the paddle 2. The assembly side surface 22 is provided with a guide channel 22-a that communicates with the locking node 5. The guide channel 22-a is for the locking unit 7 to combine with the locking node 4 to limit the positioning unit 4 in the positioning node 6. The paddle head 3 is formed by spiral bending. The principle of the utility model is that such a setting makes the paddle head 3 and the paddle 2 detachably connected, so that when the paddle head 3 needs to be replaced, it is only necessary to replace the paddle head 3, and there is no need to replace the entire paddle head 3, which can reduce costs and is convenient in steps, that is, the position of the paddle head 3 on the paddle 2 is quickly determined by combining the positioning unit 4 and the positioning node 6, and the assembly base surface 31 and the assembly matching surface 21 are both planes, so that there will be no matching gap when the two are combined, thereby avoiding the paddle head 3 from being unstable when in use, and the combination of the locking unit 7 and the locking node 4 is used to prevent the paddle head 3 from being separated from the paddle 2 in a non-replacement state, so that the paddle head 3 is stably maintained on the paddle 2, and at the same time, the bending form of the paddle head 3 is obtained in the form of spiral bending, and the angle presented by such a bending method is relatively high, that is, a spiral action surface 32 that can hold the material can be obtained, so that the main force direction is horizontal, and no stratification will occur under high-speed rotation, so that the component content of each tablet is the same.

[0020] The positioning node 6 includes a rectangular enclosing wall 61, and a first insertion space 62 which is confined within the rectangular enclosing wall 61 and allows the positioning unit 4 to be placed therein. The rectangular enclosing wall 61 abuts against the positioning unit 4 when the positioning unit 4 is placed in the first insertion space 62. Such a configuration enables the positioning node 6 to have both the first insertion space 62 for the positioning unit 4 to be placed therein, and the rectangular enclosing wall 61 which can come into contact with the positioning unit 4 after being placed therein. The contact can produce a certain degree of tightness, and the positioning node 6 has a rectangular configuration, which can prevent the positioning unit 4 from rotating after entering the positioning node 6, thereby facilitating the subsequent setting of the locking unit 7.

[0021] The positioning unit 4 is configured as an insertion rod with a configuration adapted to the positioning node 6 and placed in the first insertion space 62, the locking node 5 is arranged on the insertion rod 41, and the rectangular enclosing wall 61 is divided into a sliding portion 61-a and a tight portion 61-b along the assembly guide. The insertion rod 41 and the sliding portion 61-a are clearance-fitted, and the tight portion 61-b is tightly fitted. Such a configuration makes the size of the entry end of the insertion rod 41 smaller than the size of the entrance end of the positioning node 6, thereby eliminating the need for alignment during entry. The sliding portion 61-a enables the insertion rod 41 to move along the assembly guide direction and move to the tight portion 61-b, which has a certain restraining effect on the insertion rod 41 through the tight fit with the tight portion 61-b, that is, the freedom of the insertion rod 41 to move freely in the sliding portion 61-a is released, so that the paddle head 3 is stably set on the paddle 2, thereby facilitating the subsequent setting of the locking unit 7.

[0022] The matching clearance between the rectangular enclosing wall 61 and the insertion rod 41 gradually decreases along the assembly guide, so that the change of the first insertion space 62 is linear, making the insertion process smoother and avoiding the phenomenon of jamming in the middle of the connection assembly.

[0023] The locking node 5 includes a circular enclosing wall 51, and a second insertion space 52 which is defined within the circular enclosing wall 51 and allows the locking unit 7 to be placed therein. The circular enclosing wall 51 abuts against the locking unit 7 when the locking unit 7 is placed in the second insertion space 52. Such an arrangement enables the locking node 5 to have both the second insertion space 52 for the locking unit 7 to be placed therein, and the circular enclosing wall 51 which can come into contact with the locking unit 7 after insertion. The contact can produce a certain tightness, thereby producing a locking effect.

[0024] The locking unit 7 includes a screw 71 whose configuration is adapted to the locking node 5 and is placed in the second insertion space 52. The inner circumferential surface of the guide channel 22-a close to the locking node 5 and the circular enclosing wall 51 are provided with an internal thread that matches the thread of the screw 71. The threaded connection method is not only simple in structure, but also provides good connection stability. The guide channel 22-a also has an internal thread 8, so that there are multiple threaded connections, which not only provides a limiting constraint on the blade head 3, but also provides a limiting constraint on the locking unit 7 itself.

[0025] The width of the blade 2 gradually increases from the inner end to the outer end. Considering that the material is toward the outside under the centrifugal effect, the blade 2 is arranged in this way to achieve better stirring uniformity.

[0026] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A stirring paddle for a wet granulator, comprising a stirring base (1), and three paddles (2) obliquely arranged on the circumference of the stirring base (1), wherein the outer end of each paddle (2) is provided with a paddle head (3) formed by spiral bending, characterized in that: The paddle head (3) has an assembly base surface (31), a positioning unit (4) is arranged on the assembly base surface (31), and a locking node (5) is arranged on the positioning unit (4); the paddle (2) has an assembly mating surface (21) and an assembly side surface (22); the assembly mating surface (21) is in contact with the assembly base surface (31) and is provided with a positioning node (6) that defines the final assembly position of the paddle head (3) on the paddle (2); the assembly side surface (22) is provided with a guide channel (22-a) that communicates with the locking node (5); the guide channel (22-a) is used by the locking unit (7) to combine with the locking node (5) to define the positioning unit (4) within the positioning node (6).

2. The stirring blade for wet granulator according to claim 1, characterized in that: The positioning node (6) comprises a rectangular enclosing wall (61) and a first insertion space (62) defined within the rectangular enclosing wall (61) and allowing the positioning unit (4) to be placed therein; the rectangular enclosing wall (61) abuts against the positioning unit (4) when the positioning unit (4) is placed in the first insertion space (62).

3. The stirring blade for wet granulator according to claim 2, characterized in that: The positioning unit (4) is configured as an insertion rod (41) whose configuration is adapted to the positioning node (6) and is placed in the first insertion space (62); the locking node (5) is arranged on the insertion rod (41); the rectangular enclosing wall (61) is divided into a sliding portion (61-a) and a tight portion (61-b) along an assembly guide; the insertion rod (41) and the sliding portion (61-a) are clearance-fitted, and the tight portion (61-b) is tightly fit.

4. The stirring blade for the wet granulator according to claim 3, characterized in that: The matching clearance between the rectangular enclosing wall (61) and the inserting rod (41) gradually decreases along the assembly guide.

5. The stirring blade for a wet granulator according to claim 1, characterized in that: The locking node (5) comprises a circular enclosing wall (51) and a second insertion space (52) defined within the circular enclosing wall (51) and allowing the locking unit (7) to be placed therein; the circular enclosing wall (51) abuts against the locking unit (7) when the locking unit (7) is placed in the second insertion space (52).

6. The stirring blade for a wet granulator according to claim 5, characterized in that: The locking unit (7) is configured as a screw (71) whose configuration is adapted to the locking node (5) and is placed in the second insertion space (52), and the inner circumferential surface of the guide channel (22-a) close to the locking node (5) and the circular enclosing wall (51) are both provided with internal threads that cooperate with the threads of the screw (71).

7. The stirring blade for a wet granulator according to claim 1, characterized in that: The width of the paddle (2) gradually increases from the inner end to the outer end.

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