Hydroxypropyl methyl cellulose mixing device

Abstract

The utility model relates to a hydroxypropyl methyl cellulose mixing device, which belongs to the technical field of mixing devices and comprises a mixing barrel, the top of the mixing barrel is detachably connected with a cover, the inner top wall of the cover is rotatably connected with a stirring rod through a bearing, and the outer side of the bottom of the mixing barrel is slidably connected with a mounting box. The outer side of the stirring rod is provided with a stirring mechanism located in the mixing barrel, and the inner side of the mounting box is provided with a damping discharging mechanism used for achieving a damping effect on the mixing barrel and facilitating discharging; the stirring mechanism comprises four fixing rods fixed to the outer side of the stirring rod, mounting grooves formed in the ends, away from the stirring rod, of the fixing rods, connecting rods inserted into the inner sides of the mounting grooves, and side wall scraping plates fixed between the ends, away from the stirring rod, of the two connecting rods on the same side. According to the hydroxypropyl methyl cellulose mixing device, materials at the bottom can be scraped, the materials are prevented from sinking to the bottom and being attached, and disassembly, assembly and replacement are convenient.

Description

Technical Field

[0001] The present application relates to the technical field of mixing devices, and in particular to a hydroxypropyl methylcellulose mixing device. Background Art

[0002] Hydroxypropyl methylcellulose is a semi-synthetic, inactive, viscoelastic polymer. It is often used as a lubricant in ophthalmology, or as an excipient or excipient in oral medications. It can also be used as a water retainer and retarder for cement mortar to make the mortar pumpable. It is also widely used in synthetic resins, petrochemicals, ceramics, papermaking, leather, medicine, food and cosmetics industries.

[0003] According to a mixing and stirring device for hydroxypropyl methylcellulose production disclosed in Chinese patent announcement No. CN220496076U, the patent can scrape the material on the inner wall by using a stirring shaft in conjunction with a detachable scraper, so that the dead angle of stirring is reduced, the internal material can be fully mixed, and finally discharged evenly through the auger blades, which is very convenient and efficient. However, the patent still has certain shortcomings in actual use. The patent only provides a structure for scraping the side walls, and during the stirring process, the material at the bottom is easy to sink to the bottom and adhere. The patent cannot scrape the material attached to the bottom, resulting in certain dead angles, which not only affects the uniformity of mixing, but also easily affects the quality of the final discharged product. In addition, during the discharge process, since the material at the bottom cannot be pushed, the material remaining in the tank body cannot be effectively discharged, and there is a certain waste of material. In this regard, the present application provides a hydroxypropyl methylcellulose mixing device to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present application provides a hydroxypropyl methylcellulose mixing device, which has the advantages of being able to scrape the material at the bottom to prevent it from sinking to the bottom and being easy to disassemble and replace, thereby solving the problem that the existing mixing and stirring devices for hydroxypropyl methylcellulose production cannot effectively scrape the material at the bottom, which easily causes the material to sink to the bottom, resulting in a certain impact on the quality of the product.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a hydroxypropyl methylcellulose mixing device, comprising a mixing barrel, the top of which is detachably connected to a lid, the inner top wall of which is rotatably connected to a stirring rod through a bearing, the outer side of the bottom of the mixing barrel is slidably connected to a mounting box, the outer side of the stirring rod is equipped with a stirring mechanism located inside the mixing barrel, and the inner side of the mounting box is equipped with a shock-absorbing discharge mechanism for providing a shock-absorbing effect on the mixing barrel and facilitating discharge;

[0006] The stirring mechanism includes four fixed rods fixed to the outside of the stirring rod, a mounting groove opened at the end of the fixed rod away from the stirring rod, a connecting rod inserted into the inner side of the mounting groove, a side wall scraper fixed between the ends of two connecting rods on the same side away from the stirring rod, a straight rod fixed between the opposite sides of the two fixed rods on the same side, a plurality of stirring blades fixed to the outside of the straight rod away from the stirring rod, two sleeves respectively sleeved on the outside of the two fixed rods at the bottom, an extension rod fixed to the bottom of the sleeve, a bottom wall scraper fixed to the other end of the extension rod, and four locking members for locking the fixed rod and the connecting rod.

[0007] By adopting the above technical solution, the material at the bottom can be scraped to prevent it from sinking to the bottom, and it is easy to disassemble and replace.

[0008] Furthermore, a blocking plate for limiting the corresponding sleeve is fixed to the outer side of the fixing rod at the bottom, the locking piece includes a bolt and a nut threadedly connected to the outer side of the bolt, a stirring spiral blade is fixedly installed on the outer side of the stirring rod, and a first driving mechanism is fixedly installed on the top of the cover with an output shaft passing through the top of the cover and fixedly connected to the top of the stirring rod.

[0009] By adopting the above technical solution, the blocking plate can block and limit the sleeve, the cooperation of the bolt and the nut can achieve the locking and positioning function, and the first driving mechanism is used to provide a power source.

[0010] Furthermore, the shock-absorbing discharge mechanism includes a plurality of shock absorbers fixedly installed between the bottom of the mixing barrel and the bottom wall of the installation box, a discharge pipe fixed to the bottom of the mixing barrel, a movable hole opened on the outside of the installation box for the discharge pipe to move, an electrically controlled butterfly valve fixedly installed on the outside of the discharge pipe, a discharge rod rotatably connected to the inside of the discharge pipe through a bearing, a discharge spiral blade fixedly installed on the outside of the discharge rod, a discharge pipe fixed to the bottom of the discharge pipe and located outside the installation box, and a second drive mechanism fixedly installed on the outside of the discharge pipe and with an output shaft passing through the outside of the discharge pipe and fixedly connected to the end of the discharge rod.

[0011] By adopting the above technical solution, effective material discharge can be achieved while reducing vibration during the working process.

[0012] Furthermore, the shock absorber includes a buffer spring and a damper, and a plurality of the shock absorbers are evenly distributed at the bottom of the mixing barrel, and the top of the moving hole is open.

[0013] By adopting the above technical solution, the buffer spring can cooperate with the damper to reduce the vibration of the mixing barrel, so that the discharge pipe can move normally inside the moving hole.

[0014] Furthermore, the end of the bolt at the top passes through the corresponding fixing rod and the connecting rod in sequence, and the end of the bolt at the bottom passes through the corresponding sleeve, the fixing rod and the connecting rod in sequence.

[0015] By adopting the above technical solution, the top fixing rod and the connecting rod can be fixed by the cooperation between the corresponding bolts and nuts, and the bottom fixing rod and the connecting rod can be connected normally while also playing the role of connecting and positioning the sleeve.

[0016] Furthermore, the outer side of the nut may abut against the outer side of the sleeve or the fixing rod, and the side of the side wall scraper away from the stirring rod is in contact with the inner wall of the mixing barrel.

[0017] By adopting the above technical solution, the side wall scraper can scrape the inner wall of the mixing barrel.

[0018] Furthermore, the stirring blade is fan-shaped, and the bottom of the bottom wall scraper is in contact with the inner bottom wall of the mixing barrel.

[0019] By adopting the above technical solution, the stirring blade can play a good stirring role, and the bottom wall scraper can scrape the inner bottom wall of the mixing barrel.

[0020] Furthermore, the inner bottom wall of the mixing barrel is inclined toward a side close to the discharge pipe, and two auxiliary rods are fixed between the outer side of the extension rod and the top of the bottom wall scraper.

[0021] By adopting the above technical solution, the hydroxypropyl methylcellulose material inside the mixing barrel can be easily discharged through the discharge pipe, which can play an auxiliary fixing role, so that the bottom wall scraper can stably perform the scraping work.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The hydroxypropyl methylcellulose mixing device can scrape the material at the bottom to prevent it from sinking to the bottom through the coordinated use of the stirring mechanism inside the mixing barrel and the shock-absorbing discharge mechanism inside the installation box, and is easy to disassemble and replace, thereby greatly reducing the dead angles in the stirring and mixing process, and can prevent the material from adhering to the inner wall to the greatest extent, so that the hydroxypropyl methylcellulose material inside can be efficiently mixed. At the same time, in the process of discharging, it can promote the discharge and effectively discharge the hydroxypropyl methylcellulose material inside, which greatly reduces the waste of materials and effectively improves the practicality of the hydroxypropyl methylcellulose mixing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of this application;

[0025] Figure 2 For this application structure Figure 1 A three-dimensional schematic diagram of the middle sleeve connection structure;

[0026] Figure 3 For this application structure Figure 1 Right side cross-sectional view of the middle discharge pipe connection structure.

[0027] In the figure: 1. mixing barrel; 2. cover; 3. stirring rod; 4. installation box; 500. stirring mechanism; 501. fixing rod; 502. installation groove; 503. connecting rod; 504. side wall scraper; 505. straight rod; 506. stirring blade; 507. sleeve; 508. extension rod; 509. bottom wall scraper; 510. blocking plate; 511. bolt; 512. nut; 513. stirring spiral blade; 514. first driving mechanism; 600. shock-absorbing discharge mechanism; 601. shock absorber; 602. discharge pipe; 603. moving hole; 604. electric butterfly valve; 605. discharge rod; 606. discharge spiral blade; 607. discharge pipe; 608. second driving mechanism. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0029] See also Figures 1 to 3 The present application provides a technical solution: a hydroxypropyl methylcellulose mixing device, comprising a mixing barrel 1, a lid 2 is detachably connected to the top of the mixing barrel 1, a stirring rod 3 is rotatably connected to the inner top wall of the lid 2 through a bearing, a mounting box 4 is slidably connected to the outer side of the bottom of the mixing barrel 1, a stirring mechanism 500 located inside the mixing barrel 1 is installed on the outer side of the stirring rod 3, and a shock-absorbing discharge mechanism 600 for shock-absorbing the mixing barrel 1 and facilitating discharge is installed on the inner side of the mounting box 4; the stirring mechanism 500 inside the mixing barrel 1 and the shock-absorbing discharge mechanism 600 inside the mounting box 4 are used to damp the mixing barrel 1 and facilitate discharge. The coordinated use of the mechanisms 600 can scrape the material at the bottom to prevent it from sinking to the bottom and facilitate disassembly and replacement, thereby greatly reducing dead angles in the stirring and mixing process, and can prevent the material from adhering to the inner wall to the greatest extent, so that the internal hydroxypropyl methylcellulose material can be efficiently mixed. At the same time, in the process of discharge, it can promote the discharge and effectively discharge the internal hydroxypropyl methylcellulose material, greatly reducing the waste of materials, and effectively improving the practicality of the hydroxypropyl methylcellulose mixing device.

[0030] In this embodiment, the stirring mechanism 500 is a structure for stirring and mixing the hydroxypropyl methylcellulose material.

[0031] like Figure 1 and Figure 2 As shown, the stirring mechanism 500 includes four fixed rods 501 fixed to the outside of the stirring rod 3, a mounting groove 502 opened at the end of the fixed rod 501 away from the stirring rod 3, a connecting rod 503 inserted into the inner side of the mounting groove 502, a side wall scraper 504 fixed between the ends of the two connecting rods 503 on the same side away from the stirring rod 3, a straight rod 505 fixed between the opposite sides of the two fixed rods 501 on the same side, a plurality of stirring blades 506 fixed to the outside of the straight rod 505 away from the stirring rod 3, two sleeves 507 respectively sleeved on the outside of the two fixed rods 501 at the bottom, and a side wall scraper 504 fixed to the sleeve 505. The bottom of the cover 2 is provided with an extension rod 508, a bottom wall scraper 509 fixed to the other end of the extension rod 508, and four locking members for locking the fixing rod 501 and the connecting rod 503; a blocking plate 510 for limiting the corresponding sleeve 507 is fixed to the outer side of the bottom fixing rod 501, and the locking member includes a bolt 511 and a nut 512 threadedly connected to the outer side of the bolt 511; a stirring spiral blade 513 is fixedly installed on the outer side of the stirring rod 3; and a first driving mechanism 514 whose output shaft passes through the top of the cover 2 and is fixedly connected to the top of the stirring rod 3 is fixedly installed on the top of the cover 2.

[0032] It should be noted that the end of the top bolt 511 passes through the corresponding fixing rod 501 and the connecting rod 503 in sequence, and the end of the bottom bolt 511 passes through the corresponding sleeve 507, the fixing rod 501 and the connecting rod 503 in sequence, and the outer side of the nut 512 can abut against the outer side of the sleeve 507 or the fixing rod 501, so that the top fixing rod 501 and the connecting rod 503 can be fixed by the cooperation between the corresponding bolts 511 and the nuts 512, and the bottom fixing rod 501 and the connecting rod 503 can be connected normally while also playing the role of connecting and positioning the sleeve 507, thereby improving the convenience and applicability of installation. Among them, when the sleeve 507 abuts against the outer side of the blocking plate 510, the bolt 511 can be directly penetrated.

[0033] Meanwhile, the first driving mechanism 514 may be a servo motor, and the side of the side wall scraper 504 away from the stirring rod 3 is in contact with the inner wall of the mixing barrel 1 , so that the side wall scraper 504 can scrape the inner wall of the mixing barrel 1 .

[0034] In addition, the stirring blade 506 is fan-shaped, so that the stirring blade 506 can play a good stirring role. Two auxiliary rods are fixed between the outer side of the extension rod 508 and the top of the bottom wall scraper 509, which can play an auxiliary fixing role, so that the bottom wall scraper 509 can perform the scraping work stably.

[0035] In this embodiment, the shock-absorbing discharge mechanism 600 is a structure used for shock absorption and facilitating efficient discharge work.

[0036] like Figure 1 and Figure 3 As shown, the shock-absorbing discharge mechanism 600 includes a plurality of shock absorbers 601 fixedly installed between the bottom of the mixing barrel 1 and the inner bottom wall of the installation box 4, a discharge pipe 602 fixedly installed at the bottom of the mixing barrel 1, a movable hole 603 opened on the outside of the installation box 4 and for the discharge pipe 602 to move, an electric-controlled butterfly valve 604 fixedly installed at the outside of the discharge pipe 602, a discharge rod 605 rotatably connected to the inside of the discharge pipe 602 through a bearing, a discharge spiral blade 606 fixedly installed at the outside of the discharge rod 605, a discharge pipe 607 fixed at the bottom of the discharge pipe 602 and located at the outside of the installation box 4, and a second drive mechanism 608 fixedly installed at the outside of the discharge pipe 602 and with the output shaft passing through the outside of the discharge pipe 602 and fixedly connected to the end of the discharge rod 605.

[0037] It should be noted that the shock absorber 601 includes a buffer spring and a damper. Several shock absorbers 601 are evenly distributed at the bottom of the mixing barrel 1. Specifically, the number of buffer springs and dampers is equal, and the buffer spring is located on the outside of the corresponding damper, so that the buffer spring can cooperate with the damper to reduce the vibration of the mixing barrel 1. The top of the moving hole 603 is open, so that the discharge pipe 602 can move normally on the inside of the moving hole 603. The second driving mechanism 608 can be a servo motor.

[0038] In addition, the bottom of the bottom wall scraper 509 is in contact with the inner bottom wall of the mixing barrel 1, and the inner bottom wall of the mixing barrel 1 is inclined toward the side close to the discharge pipe 602, so that the bottom wall scraper 509 can scrape the inner bottom wall of the mixing barrel 1, and at the same time, it can also promote the discharge and prevent excessive residual hydroxypropyl methylcellulose material during the discharge process.

[0039] It should also be noted that, by using the mixing device, the hydroxypropyl methylcellulose material can be effectively stirred to make it fully mixed, and the inside of the mixing barrel 1 can be conveniently cleaned by removing the lid 2, making the device very convenient in actual operation, wherein the lid 2 and the mixing barrel 1 are connected by screws.

[0040] The working principle of the above embodiment is:

[0041] (1) When mixing the hydroxypropyl methylcellulose material, various raw materials of hydroxypropyl methylcellulose are poured into the interior of the mixing barrel 1, the lid 2 is closed, and the stirring rod 3 is extended to the interior of the mixing barrel 1, so that the side wall scraper 504 and the bottom wall scraper 509 are respectively in contact with the inner side wall and the inner bottom wall of the mixing barrel 1, and the first driving mechanism 514 is started to drive the stirring rod 3 to rotate, and then the fixed rod 501 drives the side wall scraper 504 to perform a circular motion, so that it can scrape the inner side wall of the mixing barrel 1 to prevent the material from adhering, and the fixed rod 501 at the bottom can also drive the bottom wall scraper 509 to perform a circular motion through the sleeve 507 and the extension rod 508 at the same time, so that it can scrape the inner bottom wall of the mixing barrel 1 to prevent the material from sinking to the bottom and adhering, and under the cooperation of the stirring spiral blade 513 and the stirring blade 506 , it is possible to efficiently stir and mix the hydroxypropyl methylcellulose material inside the mixing barrel 1, thereby achieving uniform mixing of the hydroxypropyl methylcellulose material. After the mixing is completed, the electrically controlled butterfly valve 604 is started, so that the interior of the discharge pipe 602 is connected to the interior of the mixing barrel 1, allowing the hydroxypropyl methylcellulose that has been mixed to enter the interior of the discharge pipe 602, and the second driving mechanism 608 is started to drive the discharge rod 605 to rotate and the discharge spiral blade 606 to rotate and push the hydroxypropyl methylcellulose inside the discharge pipe 602 to be discharged to the outside through the discharge pipe 607. During the entire mixing and discharging process, the vibration from the equipment will be transmitted to the interior of the shock absorber 601, and will be weakened and offset by the shock absorber 601, thereby reducing the vibration of the equipment, so that the mixing and discharging work can be carried out normally and stably.

[0042] (2) When it is necessary to replace the side scraper 504 and the bottom scraper 509, separate the cover 2 from the mixing barrel 1, place the stirring rod 3 on the outside of the mixing barrel 1, remove the nut 512 and the bolt 511, move the connecting rod 503 out of the inner side of the corresponding mounting groove 502, and then remove the side scraper 504. Move the sleeve 507 out of the outer side of the bottom fixing rod 501 to complete the removal of the bottom scraper 509. According to the above principle, the reverse operation is performed, the sleeve 507 is sleeved on the outer side of the bottom fixing rod 501, and the outer side of the sleeve 507 is abutted against the outer side of the blocking plate 510. Move the connecting rod 503 to be inserted into the inner side of the corresponding mounting groove 502. Finally, the connecting rod 503 and the sleeve 507 are connected to the fixing rod 501 through the connection action of the bolt 511 and the nut 512. The replacement work is completed and the inner wall can continue to be scraped.

[0043] Compared with the prior art, the hydroxypropyl methylcellulose mixing device, through the coordinated use of the stirring mechanism 500 on the inner side of the mixing barrel 1 and the shock-absorbing discharge mechanism 600 on the inner side of the installation box 4, can scrape the material at the bottom to prevent it from sinking to the bottom, and is easy to disassemble and replace, thereby greatly reducing the dead angle in the stirring and mixing process, and can prevent the material from adhering to the inner wall to the greatest extent, so that the internal hydroxypropyl methylcellulose material can be efficiently mixed, and at the same time, in the discharge process, it can promote the discharge, and can effectively discharge the internal hydroxypropyl methylcellulose material, greatly reducing the waste of materials, so that the practicality of the hydroxypropyl methylcellulose mixing device is effectively improved, and the disadvantage that the existing mixing and stirring device for hydroxypropyl methylcellulose production cannot effectively scrape the bottom material, so that the phenomenon of sinking to the bottom and adhering to the bottom easily occurs, resulting in a certain impact on the quality of the product.

[0044] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The provision of power supply is common knowledge in the field. The main controller can be a conventional known device for control such as a computer, which can be realized through simple programming by technicians in the field. They are all existing public power connection technologies and will not be described in detail in the article.

Claims

1. A hydroxypropyl methylcellulose mixing device, comprising a mixing barrel (1), characterized in that: The top of the mixing barrel (1) is detachably connected to a lid (2); the inner top wall of the lid (2) is rotatably connected to a stirring rod (3) via a bearing; the outer side of the bottom of the mixing barrel (1) is slidably connected to a mounting box (4); the outer side of the stirring rod (3) is mounted with a stirring mechanism (500) located inside the mixing barrel (1); the inner side of the mounting box (4) is mounted with a shock-absorbing discharge mechanism (600) for providing a shock-absorbing effect on the mixing barrel (1) and facilitating discharge; The stirring mechanism (500) comprises four fixed rods (501) fixed to the outside of the stirring rod (3), a mounting groove (502) provided at one end of the fixed rod (501) away from the stirring rod (3), a connecting rod (503) inserted into the inner side of the mounting groove (502), a side wall scraper (504) fixed between one end of two connecting rods (503) on the same side away from the stirring rod (3), a straight rod (505) fixed between opposite sides of the two fixed rods (501) on the same side, a plurality of stirring blades (506) fixed to the outside of the straight rod (505) away from the stirring rod (3), two sleeves (507) respectively sleeved on the outside of the two bottom fixed rods (501), an extension rod (508) fixed to the bottom of the sleeve (507), a bottom wall scraper (509) fixed to the other end of the extension rod (508), and four locking members for locking the fixed rods (501) and the connecting rods (503).

2. A hydroxypropyl methylcellulose mixing device according to claim 1, characterized in that: A blocking plate (510) for limiting the corresponding sleeve (507) is fixed to the outer side of the fixing rod (501) at the bottom, the locking member comprises a bolt (511) and a nut (512) threadedly connected to the outer side of the bolt (511), a stirring spiral blade (513) is fixedly mounted on the outer side of the stirring rod (3), and a first driving mechanism (514) is fixedly mounted on the top of the cover (2), the output shaft of which passes through the top of the cover (2) and is fixedly connected to the top of the stirring rod (3).

3. A hydroxypropyl methylcellulose mixing device according to claim 1, characterized in that: The shock-absorbing discharge mechanism (600) comprises a plurality of shock absorbers (601) fixedly mounted between the bottom of the mixing barrel (1) and the inner bottom wall of the installation box (4), a discharge pipe (602) fixedly mounted on the bottom of the mixing barrel (1), a movable hole (603) opened on the outside of the installation box (4) and allowing the discharge pipe (602) to move, an electrically controlled butterfly valve (604) fixedly mounted on the outside of the discharge pipe (602), a discharge rod (605) rotatably connected to the inside of the discharge pipe (602) via a bearing, a discharge spiral blade (606) fixedly mounted on the outside of the discharge rod (605), a discharge pipe (607) fixedly mounted on the bottom of the discharge pipe (602) and located outside the installation box (4), and a second drive mechanism (608) fixedly mounted on the outside of the discharge pipe (602) and having an output shaft extending through the outside of the discharge pipe (602) and fixedly connected to the end of the discharge rod (605).

4. A hydroxypropyl methylcellulose mixing device according to claim 3, characterized in that: The shock absorber (601) comprises a buffer spring and a damper, and a plurality of the shock absorbers (601) are evenly distributed at the bottom of the mixing barrel (1), and the top of the moving hole (603) is arranged to be open.

5. A hydroxypropyl methylcellulose mixing device according to claim 2, characterized in that: The end of the bolt (511) at the top sequentially passes through the corresponding fixing rod (501) and the connecting rod (503), and the end of the bolt (511) at the bottom sequentially passes through the corresponding sleeve (507), the fixing rod (501) and the connecting rod (503).

6. A hydroxypropyl methylcellulose mixing device according to claim 2, characterized in that: The outer side of the nut (512) can abut against the outer side of the sleeve (507) or the fixing rod (501), and the side of the side wall scraper (504) away from the stirring rod (3) is in contact with the inner wall of the mixing barrel (1).

7. A hydroxypropyl methylcellulose mixing device according to claim 1, characterized in that: The stirring blade (506) is fan-shaped, and the bottom of the bottom wall scraper (509) is in contact with the inner bottom wall of the mixing barrel (1).

8. A hydroxypropyl methylcellulose mixing device according to claim 3, characterized in that: The inner bottom wall of the mixing barrel (1) is inclined toward a side close to the discharge pipe (602), and two auxiliary rods are fixed between the outer side of the extension rod (508) and the top of the bottom wall scraper (509).

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