Speed-adjustable PVC high-efficiency mixer

Abstract

The utility model relates to mixing equipment technical field discloses a rotational speed adjustable PVC high -efficient mixer, including variable speed mixer and the replacement mechanism of installation in variable speed mixer drive output end, and the replacement mechanism includes rotating bottom axle, fixedly connected in rotating bottom axle's bayonet post, the core subassembly of detachable plug -in in bayonet post and the top hat of through screwing in bayonet post and the compression of core subassembly. The core subassembly includes the axle and the stirring paddle, and the stirring paddle fixedly connected in the outer wall of axle, and the axle as the core rod of pluggable is accommodated by bayonet post, still includes the seal strip, and the seal strip sets up in the outer periphery of axle. The utility model solves the problem that the stirring paddle wears and replaces difficultly through the replacement mechanism, improves equipment maintenance efficiency and mixed uniformity. Still the counterweight mechanism solves the problem that the mixer shakes due to the unstable barycenter when light load or high -speed operation, and promotes operation stability.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to a high-efficiency PVC mixing machine with adjustable speed. Background Technology

[0002] During the production process, PVC (polyvinyl chloride) materials typically require thorough mixing to ensure product quality and performance. The mixer, as a key piece of equipment in the PVC production line, is responsible for uniformly mixing PVC resin, stabilizers, plasticizers, and other additives.

[0003] In the mixing process of PVC materials, the agitator is the core component that directly contacts and acts on the materials. Because PVC materials themselves and some additives are abrasive, and given the long-term high-speed operation of the mixer, the agitator is prone to wear after prolonged use. Once the agitator wears down, its mixing efficiency and uniformity will significantly decrease, leading to insufficient mixing, which in turn affects the quality of subsequent products and may even cause batch spoilage.

[0004] The replacement process for existing mixing machines after the agitator impeller wears out is typically complex and time-consuming. The agitator impeller is often fixed to the agitator shaft by bolts or welding, requiring tedious disassembly and installation, sometimes necessitating specialized tools or disassembly of parts of the machine. This replacement process not only prolongs equipment downtime and reduces production efficiency but also increases the labor intensity of operators and maintenance costs.

[0005] Therefore, this utility model proposes a high-efficiency PVC mixer with adjustable speed to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a speed-adjustable PVC high-efficiency mixer, which aims to improve the problems of difficult, time-consuming and labor-intensive replacement of the agitator after wear in some existing speed-adjustable PVC high-efficiency mixers, thus affecting the uniformity of mixing and production efficiency.

[0007] This utility model provides a high-efficiency PVC mixer with adjustable speed, including: a variable speed mixer and a replacement mechanism.

[0008] The replacement mechanism is installed at the drive output end of the variable speed mixer.

[0009] Furthermore, the replacement mechanism includes a rotating bottom shaft, a bayonet post, a core assembly, and a top cap. The rotating bottom shaft is driven and connected to the variable speed mixer. The bayonet post is fixedly connected to the rotating bottom shaft. A threaded groove is provided on the top of the outer wall of the bayonet post. The core assembly is detachably inserted into the bayonet post. The top cap is screwed into the threaded groove and presses the core assembly.

[0010] Preferably, the core assembly includes a central shaft and a stirring paddle, the stirring paddle being fixedly connected to the outer wall of the central shaft, and the central shaft being accommodated by the bayonet post as a pluggable core rod.

[0011] Preferably, the core assembly further includes a sealing strip, which is disposed on the outer periphery of the central shaft and is used to cover the mating gap between the central shaft and the bayonet post to prevent material from getting stuck.

[0012] Preferably, it further includes a counterweight mechanism, which is installed on the base of the variable speed mixer. The counterweight mechanism includes a base plate, a support plate, and a top plate. The support plate is fixedly connected to the top of the base plate, and the top plate is fixedly connected to the top of the support plate.

[0013] Preferably, the counterweight mechanism further includes a grooved column, which is vertically fixed between the support plate and the top plate to provide positioning guidance for the counterweight block.

[0014] Preferably, the counterweight mechanism further includes a counterweight block, which is detachably mounted on the outer wall of the grooved column, and the counterweight block has a through hole for the fixed column to pass through.

[0015] Preferably, the counterweight mechanism further includes a fixing column, which is pluggably inserted into the top plate and snapped into the groove column, and the fixing column passes through the through hole of the counterweight block to lock the counterweight block.

[0016] Preferably, the counterweight mechanism further includes a spring, which is sleeved on the fixed column and abuts against the fixed column and the top plate, for providing elastic force to reset and lock the fixed column.

[0017] This utility model has the following beneficial effects: 1. This utility model, by setting a replacement mechanism 2, uses a detachable core component 24 and a threaded top cap 25 for quick fixing and replacement, which solves the problem of difficult, time-consuming and labor-intensive replacement of the agitator after wear in the prior art, and achieves the technical effects of shortening maintenance time, improving equipment operating efficiency and ensuring mixing uniformity.

[0018] 2. This utility model, by setting a counterweight mechanism 3, utilizes the cooperation of a pluggable fixed column 34 and a counterweight block 37 to enable the mixer to quickly increase the counterweight under light load conditions or high-speed rotation. This solves the problem in the prior art where the mixer shakes as a whole due to insufficient material, affecting the stability of operation. It achieves the technical effects of improving the stability of the mixer's operation, ensuring the mixing quality, and expanding the scope of application. Attached Figure Description

[0019] Figure 1This is a three-dimensional schematic diagram of an adjustable-speed PVC high-efficiency mixer proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a variable speed PVC high-efficiency mixer with adjustable speed proposed in this utility model; Figure 3 This is a schematic diagram of the replacement mechanism of a speed-adjustable PVC high-efficiency mixer proposed in this utility model; Figure 4 This is a schematic diagram of the counterweight mechanism of a speed-adjustable PVC high-efficiency mixer proposed in this utility model.

[0020] Legend: 1. Variable speed mixer; 2. Replacement mechanism; 21. Rotate the bottom shaft; 22. Bayonet pin; 23. Threaded groove; 24. Core assembly; 241. Central shaft; 242. Sealing strip; 243. Agitator; 25. Top hat; 3. Counterweight mechanism; 31. Base plate; 32. Grooved column; 33. Support plate; 34. Fixed column; 35. Spring; 36. Top plate; 37. Counterweight block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Reference Figures 1 to 4 This utility model provides a speed-adjustable PVC high-efficiency mixer, which aims to solve the problems of difficulty in replacing the agitator 243 of the PVC mixer after wear, which is time-consuming and labor-intensive and leads to uneven mixing.

[0023] like Figure 1 , Figure 2 and Figure 3As shown, the device includes a variable speed mixer 1 and a replacement mechanism 2 installed at the drive output end of the variable speed mixer 1. The variable speed mixer 1 provides adjustable speed driving force to the replacement mechanism 2. The replacement mechanism 2 includes a rotating base shaft 21, a bayonet post 22, a core assembly 24, and a top cap 25. The rotating base shaft 21 is connected to the variable speed mixer 1. The bayonet post 22 is fixedly connected to the rotating base shaft 21. A threaded groove 23 is provided on the top of the outer wall of the bayonet post 22. The core assembly 24 is detachably inserted into the bayonet post 22. The top cap 25 is screwed into the threaded groove 23 and presses the core assembly 24.

[0024] Reference Figure 2 and Figure 3 The replacement mechanism 2 includes a rotating base shaft 21, a bayonet post 22, a core assembly 24, and a top cap 25. The rotating base shaft 21 is driven and connected to the drive output end of the variable speed mixer 1, and is used to receive the rotational power transmitted by the variable speed mixer 1. The bayonet post 22 is fixedly connected to the rotating base shaft 21, and its outer wall top is provided with a threaded groove 23. The core assembly 24 includes a central shaft 241, a sealing strip 242, and a stirring paddle 243. The stirring paddle 243 is fixedly connected to the outer wall of the central shaft 241, and is used to directly contact and mix PVC materials. The sealing strip 242 is provided on the outer periphery of the central shaft 241, and is used to cover the fitting gap between the central shaft 241 and the bayonet post 22 to prevent materials from getting stuck during the mixing process.

[0025] The core assembly 24 is detachably inserted into the bayonet post 22. The central shaft 241, as the main body of the core assembly 24, is tightly fitted with the internal structure of the bayonet post 22 to ensure synchronous rotation during rotation. The top cap 25 is screwed into the threaded groove 23 on the top of the outer wall of the bayonet post 22, pressing and fixing the core assembly 24 into the bayonet post 22. This ensures the stability and reliability of the stirring paddle 243 during high-speed stirring and allows for quick disassembly and replacement of the core assembly 24 after the stirring paddle 243 wears out, effectively improving equipment maintenance efficiency and mixing uniformity.

[0026] Reference Figure 3 The core assembly 24 includes a central shaft 241 and a stirring paddle 243. The stirring paddle 243 is fixedly connected to the outer wall of the central shaft 241. The central shaft 241 is accommodated by the bayonet post 22 as a pluggable core rod. The core assembly 24 also includes a sealing strip 242, which is disposed on the outer periphery of the central shaft 241 and is used to cover the mating gap between the central shaft 241 and the bayonet post 22.

[0027] Reference Figure 1 and Figure 4 It also includes a counterweight mechanism 3, which is installed on the base of the variable speed mixer 1. The counterweight mechanism 3 includes a base plate 31, a support plate 33 and a top plate 36. The support plate 33 is fixedly connected to the top of the base plate 31 and the top plate 36 is fixedly connected to the top of the support plate 33, together forming the installation and support frame of the counterweight mechanism 3.

[0028] Reference Figure 4 The counterweight mechanism 3 also includes a grooved post 32, which is vertically fixed between the support plate 33 and the top plate 36, serving as a central guide post for the installation of the counterweight block 37. The counterweight mechanism 3 also includes a counterweight block 37, which is detachably mounted on the outer wall of the grooved post 32. The counterweight block 37 has a through hole for a fixing post 34 to pass through. The counterweight mechanism 3 also includes a fixing post 34, which is pluggably mounted on the top plate 36 and mounted on the grooved post 32. The fixing post 34 passes through the through hole of the counterweight block 37 to lock the counterweight block 37. The counterweight mechanism 3 also includes a spring 35, which is sleeved on the fixing post 34 and abuts against the fixing post 34 and the top plate 36, providing elastic force to reset and lock the fixing post 34.

[0029] The implementation principle of this embodiment is as follows: When material mixing begins, the drive end of the variable speed mixer 1 starts, driving the rotating base shaft 21 to rotate. Since the bayonet post 22 is fixedly connected to the rotating base shaft 21, the bayonet post 22 rotates synchronously. The core assembly 24 is detachably inserted into the bayonet post 22, so the central shaft 241 of the core assembly 24 and the stirring paddle 243 fixed thereon also rotate with the bayonet post 22, efficiently mixing the PVC material. To ensure that the core assembly 24 does not detach during high-speed rotation, the top cap 25 is screwed into the threaded groove 23 on the top of the outer wall of the bayonet post 22, thereby firmly pressing and fixing the core assembly 24 to prevent loosening or detachment during mixing. When the stirring paddle 243 wears out due to long-term use, the operator can unscrew the top cap 25 in reverse and then directly pull the entire core assembly 24 along with the worn stirring paddle 243 out of the bayonet post 22, realizing quick disassembly and replacement of the stirring paddle 243. After replacing the core assembly 24 and tightening the top cap 25, the sealing strip 242 covers the gap between the central shaft 241 and the bayonet post 22, effectively preventing material from getting stuck and ensuring that the mixer continues to operate efficiently and stably.

[0030] When the mixer contains a small amount of material for mixing, or when increased overall stability is needed to accommodate high-speed rotation, the operator can pull the handle at the top of the fixed column 34 to allow it to overcome the spring force of the spring 35 and be pulled out of the groove column 32. Then, one or more counterweights 37 are placed in the gap between the top plate 36 and the groove column 32, securing them to the outer wall of the groove column 32. The through-hole inside the counterweight 37 is aligned with the groove column 32. After releasing the fixed column 34, the spring force of the spring 35 pushes the fixed column 34 downwards, causing it to re-engage in the groove column 32 and securely lock the counterweight 37 to the outside of the groove column 32 through the through-hole, effectively preventing the counterweight 37 from falling off due to vibration during mixing. The base plate 31 and the support plate 33 fixed on it jointly support the entire counterweight mechanism 3, ensuring its stability. By adding or removing counterweights 37, the mixer can maintain good stability under different load conditions, effectively suppressing shaking.

Claims

1. A high-efficiency PVC mixer with adjustable speed, comprising: Variable speed mixer (1); Its features are, It also includes a replacement mechanism (2), which is installed at the drive output end of the variable speed mixer (1); The replacement mechanism (2) includes a rotating bottom shaft (21), a bayonet post (22), a core assembly (24), and a top cap (25). The rotating bottom shaft (21) is connected to the variable speed mixer (1) via a transmission. The bayonet post (22) is fixedly connected to the rotating bottom shaft (21). The top of the outer wall of the bayonet post (22) is provided with a threaded groove (23). The core assembly (24) is detachably inserted into the bayonet post (22). The top cap (25) is screwed into the threaded groove (23) via a thread and presses the core assembly (24).

2. The adjustable-speed PVC high-efficiency mixer according to claim 1, characterized in that, The core assembly (24) includes a central shaft (241) and a stirring paddle (243), the stirring paddle (243) being fixedly connected to the outer wall of the central shaft (241), the central shaft (241) being accommodated by the bayonet post (22) as a pluggable core rod.

3. The adjustable-speed PVC high-efficiency mixer according to claim 2, characterized in that, The core assembly (24) also includes a sealing strip (242), which is disposed on the outer periphery of the central shaft (241) and is used to cover the mating gap between the central shaft (241) and the bayonet post (22) to prevent material from getting stuck.

4. The adjustable-speed PVC high-efficiency mixer according to claim 1, characterized in that, It also includes a counterweight mechanism (3), which is installed on the base of the variable speed mixer (1). The counterweight mechanism (3) includes a bottom plate (31), a support plate (33) and a top plate (36). The support plate (33) is fixedly connected to the top of the bottom plate (31), and the top plate (36) is fixedly connected to the top of the support plate (33).

5. The adjustable-speed PVC high-efficiency mixer according to claim 4, characterized in that, The counterweight mechanism (3) also includes a grooved column (32), which is vertically fixed between the support plate (33) and the top plate (36) to provide positioning guidance for the counterweight block (37).

6. The adjustable-speed PVC high-efficiency mixer according to claim 5, characterized in that, The counterweight mechanism (3) also includes a counterweight block (37), which is detachably mounted on the outer wall of the groove column (32), and the counterweight block (37) has a through hole for the fixing column (34) to pass through.

7. The adjustable-speed PVC high-efficiency mixer according to claim 6, characterized in that, The counterweight mechanism (3) further includes a fixing column (34), which is pluggably inserted into the top plate (36) and snapped into the groove column (32). The fixing column (34) passes through the through hole of the counterweight block (37) to lock the counterweight block (37).

8. The adjustable-speed PVC high-efficiency mixer according to claim 7, characterized in that, The counterweight mechanism (3) also includes a spring (35), which is sleeved on the fixed post (34) and abuts against the fixed post (34) and the top plate (36) to provide elastic force for the fixed post (34) to be reset and locked.

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