Full-automatic adjusting and granulating device of granulator

Abstract

The utility model discloses a full-automatic adjusting granulating device of a granulator, which comprises a granulating cutter and a second drive connected with the granulating cutter for driving the granulating cutter to rotate, a plurality of blades are distributed on the granulating cutter, a screen frame fixed on a rack panel is arranged on the outer side of the granulating cutter, a screen is fixed on the screen frame, a first drive is arranged in the granulating cutter, and a second drive is arranged in the granulating cutter. The first drive is used for driving the blade to move in the radial direction of the granulating cutter so as to adjust the gap between the blade and the screen and enable the gap between the blade and the screen to be evenly distributed. Compared with the prior art, the blades are driven by the first drive to contract and expand at the same time so as to adjust the gaps between the blades and the screen, and the gaps between the blades and the screen can be evenly distributed through the arrangement. And secondly, after the blade is abraded, the gap between the blade and the screen is compensated through the first drive, and the defect that a traditional upper blade cannot be continuously used after being abraded and needs to be replaced is overcome. And thirdly, the blade cannot move in the length direction during adjustment, and the depth of the blade in the screen cannot be changed.

Description

Technical Field

[0001] The utility model relates to the technical field of dry granulators, in particular to a fully automatic regulating granulation device for a granulator. Background Art

[0002] The dry granulator mixes fillers, lubricants, drugs and other auxiliary materials, and then uses rollers to press the mixture into uniform and qualified tablets. The required particle size is then obtained through a granulator and a screen. In dry granulation, the gap between the granulator blade and the screen is an important component and key parameter. The granulator blade of the traditional dry granulator is an integrated welded structure. The granulator blade cannot be adjusted. The gap between the blade and the screen can only be adjusted indirectly by adjusting the angle of the screen frame. Refer to the attached Figure 1 The patent with publication number CN220362682U discloses a granulator gap adjustment device, which drives the worm to rotate through a knob, and the worm drives the turbine to rotate, thereby driving the eccentric rod to rotate. The rotation of the eccentric rod drives the grid to slide along the guide rod to adjust the distance between the grid and the granulator knife. This method is not a contraction and expansion type adjustment, and the gap between the grid and the granulator knife is still uneven. The patent application with the publication number CN116747971A discloses a pelletizing knife for a pelletizer and a cutting control method, comprising an outer cylinder with an opening at one end, a plurality of knife seats and a first adjustment mechanism, wherein the knife seats are arranged equidistantly around the outer cylinder, and a cutting knife is fixed on the knife seats, a first connecting rod is hinged at both ends of one side of the knife seat, and the other end of the second connecting rod is hinged on the outer wall of the outer cylinder, and the first adjustment mechanism is used to simultaneously adjust the expansion or folding of the plurality of knife seats, the first adjustment mechanism comprises a threaded sleeve threadedly connected to one end of the outer cylinder, a plurality of connecting columns are installed along one circle of the threaded sleeve, and a plurality of sliders are slidably provided along one circle of the outer cylinder, the other ends of the plurality of connecting columns are respectively fixed to one side of the plurality of sliders, the sliders are hinged with second connecting rods, and the other ends of the plurality of second connecting rods are respectively hinged to one side of the knife seat. The scheme enables the plurality of cutting knives to be adjusted together and the uniform adjustment distance can be ensured by setting the first adjustment mechanism. However, when the cutter moves toward the screen, it also moves in its length direction, causing the depth of the cutter to change. A second adjustment mechanism is required to adjust the depth of the cutter, which increases the complexity of the gap adjustment. Utility Model Content

[0003] The utility model provides a fully automatic regulating granulation device for a granulator, which is used to solve the problem that the depth of the blade changes during the existing adjustment of the gap between the blade and the screen.

[0004] The utility model provides a fully automatic regulating granulation device for a granulator, comprising a granulation knife and a second drive connected to drive the granulation knife to rotate, a plurality of blades are distributed on the granulation knife, a screen frame fixed on a frame panel is provided on the outer side of the granulation knife, a screen is fixed on the screen frame, a first drive is provided inside the granulation knife, and the first drive is used to drive the blade to move along the radial direction of the granulation knife to adjust the gap between the blade and the screen and make the gap between the two evenly distributed.

[0005] Preferably, a plurality of cross bars are slidably provided on the granulating knife, the front end of the cross bar is fixed to the blade, and the rear end of the cross bar is connected to a gap adjustment mechanism.

[0006] Preferably, the gap adjustment mechanism comprises an encoder connected to the first drive, and the wires of the first drive and the encoder pass through the axial hole of the pelletizing knife and are connected to the conductive magnetic ring.

[0007] Preferably, the gap adjustment mechanism further includes a connecting rod and a rotating member, two ends of the connecting rod are respectively hinged to the rotating member and the cross bar, and the rotating member is fixedly connected to the rotating part of the first drive.

[0008] Preferably, the gap adjustment mechanism further includes a main gear and a slave gear, the main gear is meshed with the slave gear, the main gear is fixed to the rotating part of the first drive, and the rotating member is the slave gear.

[0009] Preferably, the rotating shaft on the granulating knife is connected to the second drive, the rotating shaft is rotatably connected to the frame panel, the shaft hole passes through the rotating shaft, and the conductive magnetic ring is sleeved on the rotating shaft.

[0010] Preferably, the pelletizing knife includes a support frame and a sealing cover, a first installation cavity is formed between the support frame and the sealing cover, a second installation cavity is formed between the support frame and the rotating shaft, and the first drive and encoder are respectively arranged in the second installation cavity and the first installation cavity.

[0011] Preferably, the first drive is fixed to the support frame via a mounting plate.

[0012] Preferably, the encoder is fixed to the support frame via a connecting plate, and the master gear and the slave gear are both arranged between the connecting plate and the support frame.

[0013] Preferably, it also includes a central control screen, which is communicatively connected to the first drive and the encoder respectively.

[0014] Compared with the prior art, the utility model drives the blade to contract and expand at the same time through the first drive, so as to adjust the gap between the blade and the screen. This setting can make the gap between the blade and the screen evenly distributed, thereby ensuring the granulation effect of the granulator. Secondly, after the blade is worn, the gap between the blade and the screen is compensated by the first drive, avoiding the defect that the blade cannot be used anymore after being worn and must be replaced. Thirdly, during this adjustment, the blade will not move along its length direction, and the depth of the blade in the screen will not change. Fourthly, the screen frame has a simple structure, low manufacturing difficulty, and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the prior art;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is a top view of the utility model;

[0019] Figure 4 for Figure 2 A schematic cross-sectional view along line AA;

[0020] Figure 5 for Figure 3 The cross-sectional view along line BB in the middle;

[0021] Figure 6 It is a partial structural schematic diagram of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the blade of the utility model extending out to contact the screen;

[0023] Figure 8 This is a schematic diagram of the structure of the blade and the screen being pulled apart in the utility model;

[0024] Fig. 9 It is a schematic diagram of the structure of adjusting the distance between the blade and the screen in the utility model.

[0025] Reference numerals:

[0026] 1. Sizing knife, 2. Cross bar, 3. Blade, 4. Gap adjustment mechanism, 5. Conductive magnetic ring, 6. Second drive, 7. Frame panel, 8. Screen frame, 9. Screen, 300. Coupling, 11. Rotating shaft, 12. Support frame, 13. Sealing cover, 111. Shaft hole, 41. First drive, 42. Encoder, 43. Connecting rod, 44. Rotating part, 45. Main gear, 46. Mounting plate, 47. Connecting plate, 100. First mounting cavity, 200. Second mounting cavity. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See attached Figure 2-4 The present embodiment provides a fully automatic adjustment and granulation device for a granulator, comprising a granulation knife 1 and a second drive 6 connected to drive the rotation thereof, a plurality of blades 3 are distributed on the granulation knife 1, a screen frame 8 fixed on a frame panel 7 is provided on the outside of the granulation knife 1, a screen 9 is fixed on the screen frame 8, and a first drive 41 is provided inside the granulation knife 1, the first drive 41 is used to drive the blade 3 to move along the radial direction of the granulation knife 1, so as to adjust the gap between the blade 3 and the screen 9, and make the gap between the two evenly distributed. The utility model drives the blade 3 to contract and expand at the same time by the first drive 41, so as to adjust the gap between the blade 3 and the screen 9, and the setting can make the gap between the blade 3 and the screen 9 evenly distributed, thereby ensuring the granulation effect of the granulator. Secondly, after the blade 3 is worn, the gap between the blade 3 and the screen 9 is compensated by the first drive 41, thereby avoiding the defect that the blade 3 cannot be used and must be replaced after being worn in the traditional way. Thirdly, during the adjustment, the blade 3 will not move along its length direction, and the depth of the blade 3 in the screen 9 will not be changed. Fourth, the screen frame 8 has a simple structure, low manufacturing difficulty and convenient installation. The requirement of slotting holes on the traditional screen frame 8 is cancelled, and the installation of the adjustment rod is cancelled.

[0029] As another embodiment of the present invention: Figure 5 A plurality of cross bars 2 are slidably arranged on the pelletizing knife 1, the front end of the cross bar 2 is fixed to the blade 3, and the rear end of the cross bar 2 is connected to a gap adjustment mechanism 4. The pelletizing knife 1 rotates to drive the blade 3 to rotate, and the gap adjustment mechanism 4 is used to drive the plurality of cross bars 2 to slide simultaneously, thereby adjusting the gap between the blade 3 and the screen 9, and ensuring that the gap between the blade 3 and the screen 9 is uniform, thereby improving the pelletizing effect of the pelletizer and avoiding the accumulation of materials.

[0030] As another embodiment of the present invention: Figure 6 The gap adjustment mechanism 4 includes an encoder 42 connected to the first drive 41. The wires of the first drive 41 and the encoder 42 pass through the shaft hole 111 of the pelletizing knife 1 and are connected to the conductive magnetic ring 5. This structural design solves the problem of wire winding when the pelletizing knife 1 moves in a circle. The encoder 42 cooperates with the first drive 41 to accurately adjust the gap between the blade 3 and the screen 9, so that the gap between the blade 3 and the screen 9 can be adjusted in real time.

[0031] As another embodiment of the present utility model: the gap adjustment mechanism 4 also includes a connecting rod 43 and a rotating member 44, the two ends of the connecting rod 43 are respectively hinged with the rotating member 44 and the cross bar 2, and the rotating member 44 is fixedly connected to the main shaft of the first drive 41. The first drive 41 drives the rotating member 44 to rotate, and the connecting rod 43 on the rotating member 44 rotates around the main shaft to drive the cross bar 2 to slide on the granulating knife 1. This structural design enables the cross bar 2 to slide synchronously, ensuring that the gap between the blade 3 and the screen 9 is uniform.

[0032] As another embodiment of the present invention, the gap adjustment mechanism 4 further includes a main gear 45 and a slave gear, the main gear 45 meshes with the slave gear, the main gear 45 is fixed to the main shaft of the first drive 41, and the rotating member 44 is the slave gear. Specifically, a pin is rotatably arranged between the connecting rod 43 and the slave gear.

[0033] As another embodiment of the utility model: the rotating shaft 11 on the granulating knife 1 is connected to the second drive 6 , the rotating shaft 11 is rotatably connected to the frame panel 7 , the shaft hole 111 passes through the rotating shaft 11 , and the conductive magnetic ring 5 is sleeved on the rotating shaft 11 .

[0034] As another embodiment of the utility model: the granulating knife 1 includes a support frame 12 and a blocking cover 13, a first installation cavity 100 is formed between the support frame 12 and the blocking cover 13, a second installation cavity 200 is formed between the support frame 12 and the rotating shaft 11, and the first drive 41 and the encoder 42 are respectively arranged in the second installation cavity 200 and the first installation cavity 100. Specifically, the support frame 12 is provided with a sliding hole running through the inside and outside, and the cross bar 2 passes through the sliding hole and is fixed to the blade 3. A threading hole is provided on the inner side of the support frame 12, and the wires of the first drive 41 and the encoder 42 enter the shaft hole 111 through the threading hole and are connected to the conductive magnetic ring 5.

[0035] As another implementation of the present utility model: the first drive 41 is fixed on the support frame 12 through a mounting plate 46 .

[0036] As another embodiment of the present utility model: the encoder 42 is fixed to the support frame 12 via a connecting plate 47, the main gear 45 and the slave gear are arranged between the connecting plate 47 and the support frame 12, the main shaft of the first drive 41 passes through the support frame 12 and is fixed to the encoder shaft, and the encoder 42 is connected to the encoder shaft.

[0037] As another implementation mode of the utility model: this embodiment also includes a central control screen, which is respectively connected to the first drive 41 and the encoder 42 for communication. After setting the gap between the granulating knife 1 and the screen 9 on the central control screen, the gap between the blade 3 and the screen 9 is adjusted by driving the cross bar 2 to slide. This setting enables automatic adjustment of the gap without manually opening the door for adjustment, thus avoiding the pollution of the environment and the harm to the human body caused by the overflow of powder materials, and also protecting the materials from contamination. This adjustment method can be carried out without stopping the machine, which is beneficial to improving the equipment utilization efficiency and production capacity. For example: refer to the attached Figure 7 The blade 3 expands outward and contacts the screen 9. The central control screen presets the gap value δ between the pelletizing knife 1 and the screen 9. The second drive 6 rotates to drive the pelletizing knife 1 to run at a high speed. During the rotation of the pelletizing knife 1, refer to the attached Figure 8 The gap adjustment mechanism 4 drives the cross bar 2 to slide slowly until the blade 3 and the screen 9 are at a preset gap value δ.

[0038] As another implementation of the utility model: this embodiment also includes a coupling 300 fixed on the frame panel 7, and the rotating shaft 11 passes through the coupling 300 and the conductive magnetic ring 5 and is connected to the second drive 6.

[0039] Specifically, a calibration scale is provided on the crossbar 2, and the first drive 41 and the second drive 6 are both motors.

[0040] The operating principle of the fully automatic adjustment granulation device of the granulator is as follows: after the central control screen presets the gap δ between the blade 3 of the granulation knife 1 and the screen 9, the PLC sends a signal to the first drive 41, the first drive 41 drives the main gear 45 to run, the main gear 45 drives the meshed slave gear to run, the slave gear drives the connecting rod 43 to run, the connecting rod 43 swings and drives the cross bar 2 to slide, thereby adjusting the gap between the blade 3 and the screen 9. Fig. 9 , the hinge point of the connecting rod 43 and the crossbar 2 is A, the hinge point of the connecting rod 43 and the slave gear is B, the center of the slave gear is point D, and point C on the AD line satisfies BC perpendicular to AD, and x is the angle between AD and BD. When the connecting rod 43 is in the initial position, the gap between the blade 3 and the screen 9 is δ, and the length of the crossbar 2 is L1. Then the distance from the center of the circle D to the screen 9 is R = AD + δ + L1, δ = R-AD-L1, R is a fixed value, L1 is a fixed value, so the value of δ can be calculated by the value of AD, specifically:

[0041]

[0042] AB and BD are known, so if we know x, we can find AD, and vice versa if we know AD, we can find x.

[0043] The dry granulator program pre-sets the minimum δ1 and maximum gap δ2 between the blade 3 of the granulating knife 1 and the screen 9. If the gap input in the central control screen is less than δ1 or greater than δ2, the central control screen will automatically pop up an alarm window to alarm that the device cannot be started to avoid misoperation by personnel. If the preset gap is too small, the blade 3 will damage the screen 9. If the gap is too large, the granulating knife 1 cannot contact the material normally and granulate unqualified materials.

[0044] If material is found to be accumulated in the screen 9 during the operation of the dry granulator, the gap between the blade 3 of the granulating knife 1 and the screen 9 can be reset on the central control screen.

[0045] The utility model also provides an installation method for a fully automatic adjustment granulation device of a granulator.

[0046] (1) After the second drive 6 and the coupling 300 are installed, they are assembled together in the fixing hole on the back of the frame panel 7, and the rotating shaft 11 is installed on the coupling 300 and the second drive 6.

[0047] (2) The first drive 41 is installed together with the mounting plate 46 at the rear of the support frame 12 , and the main gear 45 is installed on the main shaft of the first drive 41 at the front of the support frame 12 .

[0048] (3) All cross bars 2 are installed in the sliding holes of the support frame 12. The center hole of the cross bar 2 matches the center hole of the connecting rod 43. The center hole of the connecting rod 43 is connected to the center hole of the slave gear by a pin shaft. The slave gear is meshed with the main gear 45 to complete the installation.

[0049] (4) The encoder shaft is installed into the mounting hole of the main gear 45. After the encoder 42 is fixed to the connecting plate 47, the encoder shaft is matched with the hole of the encoder 42, and the connecting plate 47 is fixed to the support frame 12 with bolts.

[0050] (5) Install the components installed in the previous step into the straight opening of the rotating shaft 11.

[0051] (6) Fix the blade 3 and the cross bar 2.

[0052] (7) Pass the power lines of the first drive 41 and the encoder 42 through the lead hole of the support frame 12 and the shaft hole 111 of the rotating shaft 11 and then connect them to the power line of the conductive magnetic ring 5, and fix the conductive magnetic ring 5 at the end of the second drive 6.

[0053] (8) Install the plugging cover 13 and the support frame 12 to complete the sealing. The screen frame 8 is fixed to the frame panel 7 by bolts, and the screen 9 is installed in the guide groove of the screen frame 8.

[0054] Compared with the prior art, the beneficial effects of the utility model are:

[0055] 1. By setting the gap between the blade 3 and the screen 9 on the central control screen, the first drive 41 cooperates with the encoder 42 to drive the crossbar 2 to slide to the predetermined position, so that the gap can be automatically adjusted without manually opening the door for adjustment, thus avoiding the pollution of the environment and the harm to the human body caused by the overflow of powder materials, and also protecting the materials from contamination. At the same time, the adjustment can be achieved without stopping the machine, thus improving the equipment utilization efficiency and production capacity.

[0056] 2. All blades 3 are fixed in the support frame 12 by connecting rods 43. The rotation of the support frame 12 will drive all blades 3 to extend and retract simultaneously, ensuring uniform gaps between each blade 3 and the screen 9, ensuring uniform contact between each blade 3 and the material, improving the granulation capacity, and preventing materials from accumulating under the screen 9 and clogging the screen 9.

[0057] 3. The design of the fully automatic adjustment granulation device can optimize the design of the traditional screen frame 8, and the screen frame 8 can be directly fixed on the frame panel 7 with bolts, which improves the equipment installation efficiency. It avoids the problems of high manufacturing precision requirements and difficult processing caused by the traditional process of slotting holes in the upper and lower plates of the cantilever screen frame 8, and at the same time eliminates the eccentric screen frame 8 adjustment rod to reduce equipment costs.

[0058] 4. The utility model can automatically compensate the gap between the blade 3 and the screen 9 after the blade 3 is worn, thereby avoiding the defect that the blade 3 cannot be used anymore and must be replaced after being worn in the traditional way.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A fully automatic granulation device for a granulator, characterized in that: The invention comprises a pelletizing knife (1) and a second drive (6) connected to drive the pelletizing knife to rotate. The pelletizing knife (1) is provided with a plurality of blades (3). A screen frame (8) fixed on a frame panel (7) is provided on the outer side of the pelletizing knife (1). A screen (9) is fixed on the screen frame (8). The pelletizing knife (1) is provided with a first drive (41). The first drive (41) is used to drive the blades (3) to move along the radial direction of the pelletizing knife (1) so as to adjust the gap between the blades (3) and the screen (9) and make the gap between the two evenly distributed.

2. The fully automatic granulation adjustment device for a granulator according to claim 1, characterized in that: A plurality of cross bars (2) are slidably arranged on the pelletizing knife (1); the front end of the cross bar (2) is fixed to the blade (3); and the rear end of the cross bar (2) is connected to a gap adjustment mechanism (4).

3. The fully automatic granulation adjustment device for a granulator according to claim 2, characterized in that: The gap adjustment mechanism (4) comprises an encoder (42) connected to the first drive (41); the wires of the first drive (41) and the encoder (42) pass through the axial hole (111) of the pelletizing knife (1) and are connected to the conductive magnetic ring (5).

4. The fully automatic granulation adjustment device for a granulator according to claim 3 is characterized in that: The gap adjustment mechanism (4) also includes a connecting rod (43) and a rotating member (44), the two ends of the connecting rod (43) are respectively hinged to the rotating member (44) and the cross bar (2), and the rotating member (44) is fixedly connected to the rotating part of the first drive (41).

5. The fully automatic granulation adjustment device for a granulator according to claim 4, characterized in that: The gap adjustment mechanism (4) further comprises a main gear (45) and a slave gear, wherein the main gear (45) meshes with the slave gear, the main gear (45) is fixed to the rotating part of the first drive (41), and the rotating member (44) is the slave gear.

6. The fully automatic granulation adjustment device for a granulator according to claim 5, characterized in that: The rotating shaft (11) on the pelletizing knife (1) is connected to the second drive (6), the rotating shaft (11) is rotatably connected to the frame panel (7), the shaft hole (111) passes through the rotating shaft (11), and the conductive magnetic ring (5) is sleeved on the rotating shaft (11).

7. The fully automatic granulation adjustment device for a granulator according to claim 6, characterized in that: The pelletizing knife (1) comprises a support frame (12) and a sealing cover (13); a first installation cavity (100) is formed between the support frame (12) and the sealing cover (13); a second installation cavity (200) is formed between the support frame (12) and the rotating shaft (11); and the first drive (41) and the encoder (42) are respectively arranged in the second installation cavity (200) and the first installation cavity (100).

8. The fully automatic granulation adjustment device for a granulator according to claim 7, characterized in that: The first drive (41) is fixed on the support frame (12) via a mounting plate (46).

9. The fully automatic granulation adjustment device for a granulator according to claim 8, characterized in that: The encoder (42) and the support frame (12) are fixed via a connecting plate (47), and the main gear (45) and the slave gear are both arranged between the connecting plate (47) and the support frame (12).

10. The fully automatic granulation adjustment device for a granulator according to claim 3, characterized in that: It also includes a central control screen, which is communicatively connected to the first drive (41) and the encoder (42) respectively.

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