Discharging sealing structure for PVC raw material hot mixing unit

Abstract

The utility model discloses a discharging sealing structure for a PVC raw material hot mixing unit, and relates to the technical field of PVC raw material hot mixing units, the discharging sealing structure comprises a discharging pipe, a discharging pipe is arranged at one end of the discharging pipe, the outer surface of the discharging pipe and the outer surface of the discharging pipe are jointly sleeved with two semi-sealing sleeves, and connecting plates are fixedly arranged on the two sides of the outer surface of each semi-sealing sleeve; and a fixing block is fixedly arranged at the end, close to the outer side, of each connecting plate, a fixing stud is jointly arranged at the upper ends of the connecting plates and the fixing blocks which correspond to each other up and down in a threaded and penetrating mode, and nuts are movably in contact with the lower ends of the two fixing blocks located on the lower side. The connecting position of the discharging pipe and the discharging pipe can be effectively sealed, materials cannot leak from the connecting position of the discharging pipe and the discharging pipe, and cleanness of the production environment and effective utilization of the materials are guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of PVC raw material hot mixing units, and in particular to a material discharge sealing structure for PVC raw material hot mixing units. Background Art

[0002] The PVC raw material hot mixing unit is a specialized equipment combination used for polyvinyl chloride (PVC) plastic processing. It primarily mixes PVC resin with various additives (such as stabilizers, lubricants, fillers, colorants, etc.) while heated, evenly dispersing the additives throughout the PVC resin. This provides uniform raw material quality for subsequent molding processes (such as extrusion and injection molding). Sealing at the discharge point is crucial.

[0003] However, the prior art still has the following problems:

[0004] The discharge part of the existing PVC raw material hot mixing unit has poor sealing effect. Most of them may only use simple sleeves or ordinary sealing gaskets. After long-term use, this sealing method is prone to loose sealing due to factors such as the flow impact of the PVC raw materials and the vibration of the hot mixing unit during operation, resulting in material leakage from the connection between the discharge pipe and the discharge pipe. The leaked material not only causes raw material waste and increases production costs, but also may pollute the production environment and pose potential hazards to surrounding equipment and personnel.

[0005] In response to the above-mentioned related technologies, the inventors proposed a discharge sealing structure for a PVC raw material hot mixing unit to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the present application is to provide a discharge sealing structure for a PVC raw material hot mixing unit, so as to improve the problem of poor sealing effect at the discharge point of the PVC raw material hot mixing unit.

[0007] The present application provides a discharge sealing structure for a PVC raw material hot mixing unit, which adopts the following technical solutions:

[0008] A discharge sealing structure for a PVC raw material hot mixing unit comprises a discharge pipe, one end of the discharge pipe is provided with a discharge pipe, the discharge pipe and the outer surface of the discharge pipe are jointly sleeved with two semi-sealing sleeves, both sides of the outer surface of the semi-sealing sleeve are fixed with connecting plates, and both sides of the lower end of the connecting plate located on the upper side are fixed with multiple clamping blocks, and both sides of the upper end of the connecting plate located on the lower side are provided with clamping slots for matching the clamping blocks. The cooperation between the clamping blocks and the clamping slots facilitates the accurate connection of the upper and lower connecting plates. There are three clamping blocks on one side of the lower end of the connecting plate located on the upper side, and the three clamping blocks are distributed in a mirror image. A fixing block is fixed to the outer end of the connecting plate, and a fixing stud is threaded through the upper ends of the upper and lower corresponding connecting plates and the fixing blocks. The lower ends of the two fixing blocks located on the lower side are movably contacted with nuts, and the nuts are threadedly matched with the corresponding fixing studs.

[0009] The top end face of said sliding panel also is provided with an interlock plate, and the interlock plate is fixed with a backing pin on the interlock plate, and the interlock plate is fixed with a backing pin on the interlock plate, so that the interlock plate can be tightened or tightened.

[0010] Optionally, an inner connecting ring is fixedly provided at one end of the discharge pipe, an outer connecting ring is fixedly provided at the inner end of the discharge pipe, a sealing half ring is fixedly provided on the inner wall of the semi-sealed sleeve, and the inner wall of the sealing half ring fits with the corresponding inner connecting ring and outer connecting ring.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] 1. The present application can effectively seal the connection between the discharge pipe and the outlet pipe by using the two half-sealing sleeves in conjunction with the sealing half ring and the inner connecting ring and the outer connecting ring. This sealing method can adapt to a certain degree of pipe size error and thermal expansion and contraction, ensuring that during the operation of the PVC raw material hot mixing unit, the material will not leak from the connection between the discharge pipe and the outlet pipe, thereby ensuring the cleanliness of the production environment and the effective use of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of this application.

[0014] Figure 2 This is an exploded view of the structure of the connection between the discharge pipe and the discharge pipe of this application.

[0015] Figure 3 This is an exploded cross-sectional view of the discharge pipe and the outer connecting ring of this application.

[0016] Figure 4 This is a cross-section of the driver box and an exploded view of the related structure of this application.

[0017] In the figure, 1. discharge pipe; 11. outer connecting ring; 2. discharge pipe; 21. inner connecting ring; 3. semi-sealing sleeve; 31. connecting plate; 32. fixing block; 33. fixing stud; 34. nut; 35. clamping block; 36. clamping slot; 37. sealing half ring; 4. drive box; 41. motor; 42. worm; 43. worm gear; 44. rotating shaft; 45. connecting column; 46. lower frame; 47. plug-in plate; 48. slot; 49. cross clamp; 410. cross slot; 411. receiving plate; 412. mounting block; 413. baffle. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0019] Example 1

[0020] A discharge sealing structure for a PVC raw material hot mixing unit, referring to Figure 1-2The outer surface of the discharge pipe 2 is provided with a discharge pipe 1, and the outer surfaces of the discharge pipe 1 and the discharge pipe 2 are jointly sleeved with two semi-sealing sleeves 3. An inner connecting ring 21 is fixed to one end of the discharge pipe 2, and an outer connecting ring 11 is fixed to the inner end of the discharge pipe 1. A sealing semi-ring 37 is fixed to the inner wall of the semi-sealing sleeve 3, and the inner wall of the sealing semi-ring 37 fits with the corresponding inner connecting ring 21 and the outer connecting ring 11. Connecting plates 31 are fixed to both sides of the outer surface of the semi-sealing sleeve 3, and a fixing block 32 is fixed to the outer end of the connecting plate 31, and the upper ends of the upper and lower corresponding connecting plates 31 and fixing blocks 32 are threadedly penetrated with fixing studs 33. The lower ends of the two fixing blocks 32 on the lower side are movably contacted with nuts 34, and the nuts 34 are threadedly connected with the corresponding fixing studs 33. A plurality of card blocks 35 are fixed on both sides of the lower end of the connecting plate 31 on the upper side, and both sides of the upper end of the connecting plate 31 on the lower side are opened. The clamping block 33 on the lower side is tightened and fixed with a nut 34. During the connection process, the clamping block 35 of the upper connecting plate 31 is inserted into the clamping groove 36 of the lower connecting plate 31, which plays a role of positioning and auxiliary connection, ensuring the tightness of the connection of the two semi-sealing sleeves 3, thereby achieving the sealing of the connection between the discharge pipe 2 and the discharge pipe 1 and preventing material leakage.

[0021] The implementation principle of the embodiment of the present application is as follows: the discharge pipe 1 is installed at the discharge port of the discharge pipe 2 of the PVC raw material hot mixing unit. When installing the sealing structure, the two semi-sealing sleeves 3 are respectively sleeved from the outside of the discharge pipe 2 and the discharge pipe 1, so that the sealing half ring 37 is in contact with the inner connecting ring 21 of the discharge pipe 2 and the outer connecting ring 11 of the discharge pipe 1, and then the two semi-sealing sleeves 3 are fixed together by the fixing studs 33 on the upper and lower corresponding connecting plates 31 and the fixing block 32. The fixing studs 33 on the lower side are tightened and fixed with nuts 34. During the connection process, the block 35 of the upper connecting plate 31 is inserted into the slot 36 of the lower connecting plate 31, which plays a role of positioning and auxiliary connection, ensuring the tightness of the connection of the two semi-sealing sleeves 3, thereby achieving sealing of the connection between the discharge pipe 2 and the discharge pipe 1 to prevent material leakage.

[0022] Example 2

[0023] The difference between this embodiment and embodiment 1 is that:

[0024] Reference Figure 3-4 A lower frame 46 is fixedly provided on the upper side of the outer surface of the discharge pipe 1, and a drive box 4 is detachably provided on the upper end of the lower frame 46. A motor 41 is provided at one end of the drive box 4. The output end of the motor 41 passes through the drive box 4 and is fixedly provided with a worm 42. The two ends of the worm 42 are respectively rotatably connected to the inner walls on both sides of the drive box 4. The outer surface of the worm 42 is meshed with a worm gear 43. The upper end of the worm gear 43 is fixedly penetrated by a rotating shaft 44. The upper end of the rotating shaft 44 is rotatably connected to the upper inner wall of the drive box 4. The lower end of the rotating shaft 44 is detachably connected to a connecting column 45. The lower end of the connecting column 45 passes through the discharge pipe 1 and is fixedly provided with a baffle 413. When it is necessary to control the discharging, the motor 41 is started, and the output end of the motor 41 drives the worm 42 to rotate. The worm 42 is meshed with the worm wheel 43, and the rotational motion of the worm 42 is transmitted to the worm wheel 43, so that the worm wheel 43 rotates, and the worm wheel 43 drives the rotating shaft 44 to rotate, thereby driving the connecting column 45 to drive the baffle 413 to rotate, and the baffle 413 can rotate in the discharge pipe 1 to realize the opening and closing control of the discharge. The added discharge control device can accurately control the rotation angle of the baffle 413 through the transmission mechanism composed of the motor 41, the worm 42, the worm wheel 43, etc., so as to realize flexible control of the discharge amount and the discharge time. This is of great significance for the discharge operation of the PVC raw material hot mixing unit, and can accurately discharge the material according to the production process requirements, thereby improving the degree of automation of production and the stability of product quality.

[0025] Reference Figure 3-4 , a receiving plate 411 is fixed on the upper side of one end of the lower frame 46, a mounting block 412 is movably inserted on the upper end of the lower frame 46, and one end of the mounting block 412 is fixedly connected to the drive box 4, and the mounting block 412 is connected to the outer end of the lower frame 46 by bolts. Insertion plates 47 are fixed on both sides of the lower end of the drive box 4, and slots 48 for matching the insertion plates 47 are opened on both sides of the upper end of the lower frame 46. A cross clamp 49 is fixed on the lower end of the rotating shaft 44, and a cross slot 410 for matching the cross clamp 49 is opened on the upper end of the connecting column 45. When installing the drive box 4, insert the insertion plate 47 at the lower end of the drive box 4 into the lower frame 46 The drive box 4 is initially positioned in the slot 48 at the upper end, and then the mounting block 412 is inserted into the lower frame 46 and fixed with bolts to ensure the firmness of the installation of the drive box 4. The receiving plate 411 can be used to receive and support part of the weight of the drive box 4 or withstand some external forces during operation. The rotating shaft 44 cooperates with the cross slot 410 at the upper end of the connecting column 45 through the cross clamp 49 at the lower end to transmit power to the connecting column 45, so that the drive is driven, which proves its firmness during use and facilitates disassembly and maintenance. This design can reduce the possibility of the drive box loosening or damage due to equipment vibration and other reasons, and improves the reliability of the entire discharge control device.

[0026] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A discharge sealing structure for a PVC raw material hot mixing unit, comprising a discharge pipe (2), characterized in that: One end of the discharge pipe (2) is provided with a discharge pipe (1), and the outer surfaces of the discharge pipe (1) and the discharge pipe (2) are jointly sleeved with two semi-sealed sleeves (3), and connecting plates (31) are fixedly provided on both sides of the outer surface of the semi-sealed sleeve (3), and a fixing block (32) is fixedly provided at the outer end of the connecting plate (31), and the upper ends of the upper and lower corresponding connecting plates (31) and fixing blocks (32) are threadedly penetrated with fixing studs (33), and the lower ends of the two fixing blocks (32) located on the lower side are movably contacted with nuts (34), and the nuts (34) are threadedly connected with the corresponding fixing studs (33).

2. The material discharge sealing structure for a PVC raw material hot mixing unit according to claim 1, characterized in that: A lower frame (46) is fixedly provided on the upper side of the outer surface of the discharge pipe (1), and a drive box (4) is detachably provided on the upper end of the lower frame (46), a motor (41) is provided at one end of the drive box (4), an output end of the motor (41) passes through the drive box (4) and is fixedly provided with a worm (42), an outer surface of the worm (42) is meshedly connected with a worm wheel (43), a rotating shaft (44) is fixedly passed through the upper end of the worm wheel (43), a connecting column (45) is detachably connected to the lower end of the rotating shaft (44), and a baffle (413) is fixedly provided on the lower end of the connecting column (45), which passes through the discharge pipe (1) and is fixedly provided with a baffle (413).

3. The material discharge sealing structure for a PVC raw material hot mixing unit according to claim 1, characterized in that: An inner connecting ring (21) is fixedly provided at one end of the discharge pipe (2), an outer connecting ring (11) is fixedly provided at the inner end of the discharge pipe (1), and a sealing half ring (37) is fixedly provided on the inner wall of the semi-sealed sleeve (3), and the inner wall of the sealing half ring (37) is in contact with the corresponding inner connecting ring (21) and outer connecting ring (11).

4. The material discharge sealing structure for a PVC raw material hot mixing unit according to claim 1, characterized in that: A plurality of clamping blocks (35) are fixedly provided on both sides of the lower end of the connecting plate (31) located on the upper side, and clamping slots (36) for matching the clamping blocks (35) are provided on both sides of the upper end of the connecting plate (31) located on the lower side.

5. The material discharge sealing structure for a PVC raw material hot mixing unit according to claim 4, characterized in that: Three clamping blocks (35) are provided on one side of the lower end of the connecting plate (31) on the upper side, and the three clamping blocks (35) are distributed in a mirror image.

6. The material discharge sealing structure for a PVC raw material hot mixing unit according to claim 2, characterized in that: A receiving plate (411) is fixedly provided on the upper side of one end of the lower frame (46), a mounting block (412) is movably inserted into the upper end of the lower frame (46), and one end of the mounting block (412) is fixedly connected to the drive box (4), and the mounting block (412) is connected to the outer end of the lower frame (46) by bolts.

7. The material discharge sealing structure for a PVC raw material hot mixing unit according to claim 2, characterized in that: Insertion plates (47) are fixedly provided on both sides of the lower end of the drive box (4), and slots (48) for matching the insertion plates (47) are provided on both sides of the upper end of the lower frame (46).

8. The material discharge sealing structure for a PVC raw material hot mixing unit according to claim 2, characterized in that: A cross clamp (49) is fixedly provided at the lower end of the rotating shaft (44), and a cross slot (410) is provided at the upper end of the connecting column (45) for use with the cross clamp (49).

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