Hot melt adhesive stirring tank with discharging assembly

Abstract

The utility model discloses a hot melt adhesive stirring tank with a discharge component, the bottom of the tank body is provided with a discharge port, the lower end of the discharge port is provided with the discharge component, the discharge component comprises a fixed block and a ball head, the fixed block is fixedly arranged at the bottom of the tank body, the fixed block is provided with a mounting groove which is through up and down, and the ball head is arranged in the mounting groove. The ball head is rotationally arranged in the mounting groove, and a through hole penetrating up and down is formed in the ball head and communicates with the discharging opening; or the through hole and the discharge hole are staggered, and the outer surface of the ball head is basically flush with the bottom surface of the inner cavity of the tank body or exceeds the bottom surface of the inner cavity of the tank body. When the discharge assembly of the hot melt adhesive stirring tank is closed, the surface of the ball head is basically flush with the inner cavity of the tank body, so that the inner cavity of the tank body has no stirring and mixing dead angle; the proportion and the content of the material components are not influenced.

Description

Technical Field

[0001] This utility model relates to the technical field of gelling paste mixing devices, and in particular to a hot melt adhesive mixing tank with a discharge component. Background Technology

[0002] Ointment preparation is a crucial step in the production of medicinal plasters. First, the drug matrix carrier, such as hot melt adhesive, and the required medicinal powders, extracts, or liquids are poured into a mixing machine or tank, where they are thoroughly mixed and refined. After mixing in the mixing machine or tank, the ointment is transferred to the next processing equipment. To facilitate the removal of the ointment from the mixing machine or tank, a discharge port is installed at the bottom, with a ball valve controlling its opening and closing. Existing ball valves, for ease of assembly, typically include an upper connecting pipe and a lower connecting pipe, with a rotatable ball head between them. Therefore, a downward-extending connecting sleeve is installed at the discharge port of the tank. The connecting sleeve is fixedly connected to the upper connecting pipe of the ball valve by screwing or snapping. At this time, the upper connecting pipe will be connected to the inner cavity of the mixing machine or mixing tank, causing the paste in the inner cavity to enter the upper connecting pipe. However, the upper connecting pipe has a relatively small aperture and a relatively deep depth, which makes it difficult for the paste entering the upper connecting pipe to be fully mixed with the material in the tank. In fact, in the initial stage of pouring in the material, effective drugs such as powder extracts and liquid drugs directly enter the upper connecting pipe, resulting in insufficient content of effective drug components in the paste. Utility Model Content

[0003] The purpose of this invention is to provide a hot melt adhesive mixing tank with a discharge component. When the discharge component of the hot melt adhesive mixing tank is closed, the surface of the ball head is basically flush with the inner cavity of the tank, so that there are no dead corners in the inner cavity of the tank for mixing, and the proportion and content of material components will not be affected.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A hot melt adhesive mixing tank with a discharge assembly includes a tank body, a discharge port at the bottom of the tank body, and a discharge assembly at the lower end of the discharge port. The discharge assembly includes a fixing block and a ball head. The fixing block is fixedly installed at the bottom of the tank body and has a vertically penetrating mounting groove on the fixing block. The ball head is rotatably disposed in the mounting groove and has a vertically penetrating through hole on the ball head. The through hole communicates with the discharge port, or the through hole is offset from the discharge port and the outer surface of the ball head is substantially flush with or extends beyond the bottom surface of the inner cavity of the tank body.

[0006] In the above technical solution, when the discharge component is closed, the highest point of the outer surface of the ball head is basically flush with or slightly exceeds the bottom surface of the inner cavity of the tank. This makes the ball head tend to be embedded in the bottom surface of the inner cavity of the tank, so that there are no dead corners for stirring at the discharge port of the tank, which can make the material poured into the tank mix more evenly and avoid the problem of low content of effective ingredients in the ointment.

[0007] Preferably, the upper opening size of the mounting groove is smaller than the lower opening size of the mounting groove, and a sealing gasket is provided between the ball head and the upper opening of the mounting groove, and between the ball head and the lower opening of the mounting groove.

[0008] Preferably, the height of the mounting groove matches the height of the ball head, and the size of the lower opening of the mounting groove is not less than the diameter of the ball head.

[0009] In the above technical solution, compared to the existing method of installing the ball head on the upper and lower connecting pipes and then connecting the upper connecting pipe to the bottom of the tank, the upper and lower connecting pipes are eliminated, thus avoiding the upper connecting pipe becoming a dead space in the tank's internal cavity. At the same time, the size of the lower opening of the mounting groove is not smaller than the diameter of the ball head, facilitating the placement of the ball head into the mounting groove from the lower opening. Furthermore, the size of the upper opening of the mounting groove is smaller than the size of the lower opening, preventing the ball head from detaching from the upper opening. The structure is simple, facilitating the installation of the ball head, and shortening the distance between the ball head and the tank's internal cavity.

[0010] Preferably, the discharge assembly further includes a driving device, which is fixedly connected to the fixed block and drives the ball head to rotate within the mounting groove.

[0011] Preferably, the fixing block has a transverse through hole that communicates with the mounting groove. The drive shaft of the drive device passes through the through hole and connects to the ball head. A slot is provided on the outer side of the middle part of the ball head, and the end of the drive shaft is a clamp that cooperates with the slot.

[0012] Preferably, the lower end of the discharge component is further connected to a feeding component and a filtering component in sequence, a gear pump is connected inside the feeding component, and a filter is provided inside the filtering component.

[0013] Preferably, the feeding assembly includes a first connecting block, a pump chamber is provided in the first connecting block, the gear shaft of the gear pump is rotatably disposed in the pump chamber, an inlet is provided above the pump chamber corresponding to the lower opening of the mounting groove, and an outlet is provided on the lower side of the pump chamber communicating with the filter assembly.

[0014] Preferably, the dimensions of the discharge port, the through hole, and the pump chamber inlet are matched.

[0015] Preferably, the filter assembly includes a second connecting block, the second connecting block having a discharge port and a filter chamber inside the second connecting block, the discharge port being connected to the filter chamber, and the filter being fixedly connected inside the filter chamber; the outlet of the pump chamber is connected to the filter chamber.

[0016] Preferably, the tank body includes a first tank body and a second tank body, the second tank body is embedded in the first tank body, the discharge port is disposed on the second tank body, and the fixing block is installed at the bottom of the second tank body.

[0017] Compared with existing technologies, the above technical solution has the following advantages:

[0018] The discharge assembly uses a fixing block to secure the ball head to the bottom of the tank. When the discharge assembly is closed, the outer surface of the ball head is essentially flush with the bottom surface of the tank's inner cavity, significantly reducing the distance between the ball head and the tank's inner cavity, and between the ball head and the discharge assembly. This prevents the connecting pipe between the ball head and the tank from forming a dead zone for stirring, which could affect the content of the active ingredients in the paste. Furthermore, the regular structure of the fixing block facilitates heating and heat preservation of the discharge assembly, preventing material from solidifying and clogging the through-holes within the assembly. Moreover, embedding the fixing block within the bottom of the tank further minimizes the impact of the tank's thickness on the distance between the ball head and the tank's inner cavity. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention (with a tank).

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention (without a tank) from a second angle;

[0021] Figure 3 This is a schematic diagram showing the cross-sectional angle of the present invention (without a tank).

[0022] Figure 4 This is a sectional side view of the present invention (without a tank);

[0023] Figure 5 This is an exploded view of the material feeding assembly of this utility model.

[0024] Figure 6 This is a cross-sectional view of the present invention (with a tank).

[0025] Figure 7 for Figure 6 A magnified view of part A in the middle.

[0026] In the diagram: 1. Tank body; 11. Discharge port; 12. Bottom surface of inner cavity; 13. First tank body; 14. Second tank body; 2. Fixing block; 21. Mounting groove; 22. Upper opening; 23. Lower opening; 24. Perforation; 3. Ball head; 31. Through hole; 32. Highest point; 33. Slot; 4. Sealing gasket; 5. Drive device; 51. Drive shaft; 2. Clamp; 6. Gear pump; 61. Gear shaft; 7. First connecting block; 71. Pump chamber; 72. Pump chamber inlet; 73. Pump chamber outlet; 74. First connecting groove; Filter assembly; 8. Filter; 9. Second connecting block; 91. Discharge port; 92. Filter chamber; 93. Feed port. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1 to 7 As shown, a hot melt adhesive mixing tank with a discharge assembly includes a tank body 1. A discharge port 11 is provided at the bottom of the tank body 1. A discharge assembly is provided at the lower end of the discharge port 11. The discharge assembly includes a fixing block 2 and a ball head 3. A vertically penetrating mounting groove 21 is provided on the fixing block 2. The ball head 3 is rotatably disposed in the mounting groove 21. A vertically penetrating through hole 31 is provided on the ball head 3. The fixing block 2 is sealed and fixedly installed at the bottom of the tank body 1. When the ball head 3 rotates to make the through hole 31 overlap with the discharge port 11, the through hole 31 is connected to the inner cavity of the tank body 1. At this time, the discharge assembly is in the open state, and the colloid or paste in the tank body can be discharged from the inner cavity of the tank body 1 through the discharge port 11 and the through hole 31. When the ball head 3 rotates to make the through hole 31 offset from the discharge port 11, the discharge assembly is in the closed state. At this time, the outer surface of the ball head 3 is basically flat with the bottom surface 12 of the inner cavity of the tank body 1. Furthermore, when the ball head 3 rotates 90° to completely close the discharge assembly, the highest point 32 of the outer surface of the ball head 3 is basically flush with or slightly exceeds the bottom surface 12 of the inner cavity of the tank body 1. This causes the ball head 3 to tend to be embedded in the bottom surface of the inner cavity of the tank body 1, so that there are no dead corners at the discharge port 11 of the tank body 1. This allows the powder, liquid or ointment base poured into the tank body 1 to be fully stirred and mixed, making the material more uniformly mixed and avoiding the problem of low content of effective ingredients in the ointment.

[0029] In a preferred embodiment, the ball head 3 is provided with a through hole 31, making the ball head 3 generally flat and round. In this way, the height of the ball head 3 is less than the diameter of the ball head 3. At the same time, the height of the mounting groove 21 matches the height of the ball head 3. When the through hole 31 is aligned with the discharge port 11 and the discharge assembly is opened, the ball head 3 is in a vertical state in the mounting groove 21. When the ball head 3 is rotated 90° to a horizontal state, the through hole 31 is misaligned with the discharge port 11, and the highest point 32 of the outer surface of the ball head 3 is aligned with the discharge port 11. The highest point will protrude from the upper opening 22 of the mounting groove 21 and be basically flush with the bottom surface of the inner cavity of the tank body 1. At the same time, the size of the lower opening 23 of the mounting groove 21 is not less than the diameter of the ball head 3, which makes it convenient to place the ball head 3 into the mounting groove 21 from the lower opening 23. The size of the upper opening 22 of the mounting groove 21 is smaller than the size of the lower opening 23, so that the ball head 3 will not fall out from the upper opening 22 of the mounting groove. Compared to existing technologies where the ball head is installed on the upper and lower connecting pipes before connecting the upper connecting pipe to the bottom of the tank 1, this method eliminates the need for separate upper and lower connecting pipes, thus preventing the upper connecting pipe from becoming a dead space within the tank 1. Furthermore, sealing gaskets 4 are provided between the ball head 3 and the upper opening 22 of the mounting groove 21, and between the ball head 3 and the lower opening 23 of the mounting groove, further ensuring a tight seal within the tank 1 and preventing ointment leakage.

[0030] In a preferred embodiment, the discharge assembly further includes a drive device 5, which is fixedly connected to the fixing block 2 and drives the ball head 3 to rotate within the mounting groove 21. Specifically, the fixing block 2 has a transverse through hole 24 that communicates with the mounting groove 21. The drive shaft 51 of the drive device 5 passes through the through hole 24 and connects to the ball head 3. A slot 33 is provided on the outer side of the middle part of the ball head 3. The end of the drive shaft 51 is a locking head 52 that cooperates with the slot 33. The locking head 52 is locked in the slot 33, and the drive device 5 drives the ball head 3 to rotate within the mounting groove 21 through the drive shaft 51.

[0031] In a preferred embodiment, a feeding assembly and a filtering assembly are sequentially connected to the lower end of the discharge assembly. A gear pump 6 is connected inside the feeding assembly. The material in the tank 1 enters the feeding assembly after passing through the discharge assembly. The gear pump 6 rotates to drive the material downward. The material then enters the filtering assembly, which is equipped with a filter 8 and a feeding port 91. The filter 8 filters the material, and the material is discharged from the feeding port 91. Further, the feeding assembly includes a first connecting block 7, which has a pump chamber 71. The gear shaft 61 of the gear pump 6 is rotatably disposed in the pump chamber. The first connecting block 7 is sealed to the lower part of the fixing block 2 by screw connection. An inlet 72 is provided above the pump chamber 71, corresponding to the lower opening 23 of the mounting groove 21. The size of the pump chamber inlet 72 is smaller than the size of the lower opening 23. In this way, after the first connecting block 7 is fixed to the lower part of the mounting block 2, the ball head 3 can be stably fixed in the mounting groove 21. Furthermore, the size of the upper opening 22 of the mounting groove 21 matches the size of the discharge port 11, and the size of the through hole 31 matches the size of the discharge port 11 and the pump inlet 72. In this way, the discharge port 11, the through hole 31 and the pump inlet 72 together form a channel that is connected to the inner cavity of the tank body 1 and is consistent from top to bottom, which can make it easier for the material to move downward.

[0032] An outlet 73 is provided on the lower side of the pump chamber 71, communicating with the filter assembly. The filter assembly includes a second connecting block 9, which is sealed and connected to the lower part of the first connecting block 7 by screwing. A filter chamber 92 is provided inside the second connecting block 9, and a discharge port 91 is provided on the lower side of the filter chamber 92 and communicates with the filter chamber 92. A filter 8 is fixedly connected inside the filter chamber 92. An inlet 93 is also provided on the upper side of the filter chamber 92, and the filter chamber 92 communicates with the pump chamber outlet 73 through the inlet 93. In a preferred embodiment, a first connecting groove 74 is provided around the pump chamber inlet 72 on the upper side of the first connecting block 7. The first connecting groove 74 forms the bottom of the mounting groove 21. A sealing gasket 4 between the ball head 3 and the lower opening 23 is provided between the first connecting groove 74 and the lower side of the mounting groove 21. This can shorten the distance between the ball head 3 and the gear pump 6. At the same time, the sealing gasket 4 also has a sealing effect on the connection seam between the fixed block 2 and the first connecting block 7. Furthermore, the feed inlet 93 of the filter chamber 92 and the pump outlet 73 can also be sealed together using the above structure.

[0033] In a preferred embodiment, the tank 1 includes a first tank 13 and a second tank 14, with the second tank 13 embedded within the first tank 14. A discharge port 11 is located on the second tank 13, and a fixing block 2 is located at the bottom of the second tank 13. A heating and insulation device can be installed between the first tank 14 and the second tank 13 to ensure the colloid inside the tank 1 remains in a molten state. Furthermore, the fixing block 2 is positioned between the first tank 14 and the second tank 13, and the heating device can simultaneously heat and insulate the material at the fixing block 2 to prevent the colloid from clogging the discharge assembly.

[0034] In the above technical solution, the fixing block 2 is fixedly connected to the bottom of the tank 1. Then, the sealing gasket 4, the ball head 3, and the sealing gasket 4 are placed in the mounting groove 21 in sequence. Then, the first connecting block 7 and the second connecting block 9 are sealed and connected to the lower side of the mounting block 2 in sequence. Then, the drive shaft 51 is inserted into the through hole 24 and connected to the ball head 3, and the drive device 5 is fixed on the fixing block 2. The gear pump 6 is sealed and connected to the first connecting block, and the filter 8 is sealed and connected to the second connecting block 9. Finally, the gear pump 6, the drive device 5 and the control unit of the tank are electrically connected, thus completing the installation of the device. In use, the through hole 31 is misaligned with the discharge port 11, and the highest point 32 is basically flush with the bottom surface 12 of the inner cavity of the tank 1. At this time, the active ingredients such as liquid medicine, powder medicine, and the carrier matrix of the powder medicine, such as hot melt colloid, are poured into the tank 1. After the agitator fully mixes the materials in the tank 1, the drive device 5 drives the ball head 3 to rotate 90° so that the through hole 21 coincides with the discharge port 11 and the discharge component is opened. Then the mixed colloid flows out from the discharge port 11, passes through the gear pump 6 and the filter 8, and enters the conveying channel from the discharge port 91 to reach the next processing step.

[0035] This embodiment is merely an illustration of the concept and implementation of this utility model, and is not intended to limit it. Under the concept of this utility model, the technical solution without substantial changes is still within the scope of protection.

Claims

1. A hot melt adhesive mixing kettle having a dispensing assembly, comprising a kettle body, characterised in that, The bottom of the tank body is provided with a discharge port, and the lower end of the discharge port is provided with a discharge assembly. The discharge assembly comprises a fixed block and a ball head. The fixed block is fixedly installed on the bottom of the tank body. An installation slot is arranged on the fixed block and penetrates the fixed block from top to bottom. The ball head is rotatably arranged in the installation slot. A through hole is arranged on the ball head and penetrates the ball head from top to bottom. The through hole is communicated with the discharge port, or the through hole is staggered with the discharge port, and the outer surface of the ball head is substantially flush with the bottom surface of the inner cavity of the tank body or exceeds the bottom surface of the inner cavity of the tank body.

2. The hot melt adhesive mixing kettle with a discharge assembly of claim 1, wherein, The upper opening size of the installation slot is smaller than the lower opening size of the installation slot. A sealing gasket is arranged between the ball head and the upper opening of the installation slot and between the ball head and the lower opening of the installation slot.

3. The hot melt adhesive mixing kettle with a discharge assembly of claim 2, wherein, The height of the installation slot is matched with the height of the ball head. The size of the lower opening of the installation slot is not less than the diameter of the ball head.

4. The hot melt adhesive mixing kettle with a discharge assembly of claim 1, wherein, The discharge assembly further comprises a driving device. The driving device is fixedly connected to the fixed block, and the driving device drives the ball head to rotate in the installation slot.

5. The hot melt adhesive mixing kettle with a discharge assembly of claim 4, wherein, A transverse perforation is arranged on the fixed block. The perforation is communicated with the installation slot. The driving shaft of the driving device is connected with the ball head through the perforation. A clamping groove is arranged on the outer side surface of the middle part of the ball head. The end of the driving shaft is a clamping head matched with the clamping groove.

6. The hot melt adhesive mixing kettle with a discharge assembly according to any one of claims 1 to 4, wherein, The lower end of the discharge assembly is further connected with a discharging assembly and a filtering assembly in sequence. A gear pump is connected in the discharging assembly. A filter is arranged in the filtering assembly.

7. The hot melt adhesive mixing kettle with a discharge assembly of claim 6, wherein, The discharging assembly comprises a first connecting block. A pump cavity is arranged in the first connecting block. The gear shaft of the gear pump is rotatably arranged in the pump cavity. An inlet is arranged above the pump cavity and corresponds to the lower opening of the installation slot. An outlet is arranged on the lower side of the pump cavity and is communicated with the filtering assembly.

8. The hot melt adhesive mixing kettle with a discharge assembly of claim 7, wherein, The sizes of the discharge port, the through hole and the inlet of the pump cavity are matched with each other.

9. The hot melt adhesive mixing kettle with a discharge assembly of claim 8, wherein, The filtering assembly comprises a second connecting block. A discharging port is arranged on the second connecting block. A filtering cavity is arranged in the second connecting block. The discharging port is connected with the filtering cavity. The filter is fixedly connected in the filtering cavity. The outlet of the pump cavity is communicated with the filtering cavity.

10. The hot melt adhesive mixing kettle with a discharge assembly of claim 1 or 9, wherein, The tank body comprises a first tank body and a second tank body. The second tank body is embedded in the first tank body. The discharge port is arranged on the second tank body. The fixed block is installed on the bottom of the second tank body.

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