Novel pouring head

Abstract

The utility model relates to a novel pouring head which comprises a feeding seat, a mixing head and a driving mechanism used for driving the mixing head to rotate, the lower end of the feeding seat is fixedly connected with a mixing cavity, the lower end of the mixing cavity is fixedly connected with a mixing sleeve, the lower end of the mixing sleeve is fixedly connected with a discharging nozzle, and the discharging nozzle is fixedly connected with the mixing head. An upper mixing cavity is formed in the mixing cavity, a lower mixing cavity connected with the upper mixing cavity is formed in the mixing sleeve, the mixing head is rotationally arranged in the upper mixing cavity and the lower mixing cavity, and a first feeding channel and a second feeding channel which are communicated with the upper side of the upper mixing cavity are formed in the mixing cavity; a temperature control groove is annularly formed in the outer side wall of the mixing sleeve, a sealing sleeve covering the temperature control groove is fixedly arranged outside the mixing sleeve in a sleeving mode, and a liquid inlet and a liquid outlet which penetrate into the temperature control groove are formed in the sealing sleeve. And therefore, the pouring process is ensured to be carried out stably.

Description

Technical Field

[0001] The utility model relates to the field of polyurethane injection molding, in particular to a novel pouring head. Background Art

[0002] Polyurethane is a widely used polymer material. Due to its excellent physical properties and chemical stability, it has a wide range of applications in multiple industries such as construction, automotive, and furniture. The production of polyurethane usually adopts a multi-component reaction system, and the most common one is the reaction between isocyanate and polyol. During the production process, in order to obtain high-quality products, it is necessary to precisely control the reaction conditions, especially the temperature of the reactants.

[0003] Currently, during the polyurethane pouring process, a pouring head is usually used to mix the reactants and then inject them into the mold. However, due to the difference in the solidification rates of different raw materials (such as isocyanate and polyol), the following problems are likely to occur during the pouring process:

[0004] 1. For raw materials that are prone to solidification, solidification may occur inside the pouring head or at the pouring nozzle position, resulting in poor pouring or even blockage;

[0005] 2. For raw materials that are difficult to solidify, the solidification rate is slow after being injected into the mold, affecting the production efficiency.

[0006] To solve the above problems, there have been some attempts in the prior art. For example, heating devices are used to maintain the fluidity of the raw materials, or cooling devices are used to accelerate the solidification process. However, these solutions are often not flexible enough to effectively adjust according to the characteristics of different raw materials, and may also have disadvantages such as complex equipment and high energy consumption.

[0007] Summary of the Utility Model

[0008] The utility model provides a novel pouring head, which has a simple structure and is convenient for flexibly controlling the solidification rates of different raw materials, solving the above problems existing in the prior art during use.

[0009] The technical solution of the utility model is realized as follows: A novel pouring head includes a feeding seat, a mixing head, and a driving mechanism for driving the mixing head to rotate. The lower end of the feeding seat is fixedly connected with a mixing cavity. The lower end of the mixing cavity is fixedly connected with a mixing sleeve. The lower end of the mixing sleeve is fixedly connected with a discharging nozzle. An upper mixing cavity is formed in the mixing cavity. A lower mixing cavity connected to the upper mixing cavity is formed in the mixing sleeve. The mixing head is rotatably arranged in the upper mixing cavity and the lower mixing cavity. The mixing cavity is provided with a first feeding channel and a second feeding channel leading to the upper side of the upper mixing cavity. A temperature control groove is annularly formed on the outer side wall of the mixing sleeve. A sealing sleeve covering the temperature control groove is fixedly sleeved outside the mixing sleeve. The sealing sleeve is provided with a liquid inlet and a liquid outlet penetrating into the temperature control groove.

[0010] Preferably, a first feeding sub-channel and a second feeding sub-channel are formed on the feeding seat. Both the first feeding sub-channel and the second feeding sub-channel extend into the mixing cavity and are communicated with the first feeding channel.

[0011] Preferably, a sealing seat fixedly connected to the feeding seat is arranged on the upper side of the upper mixing cavity. The driving mechanism includes a rotating shaft. The lower end of the rotating shaft is fixedly connected with the mixing head. The rotating shaft passes upward through the sealing seat.

[0012] Preferably, the driving mechanism further includes a motor, a transmission component, a main shaft, and a coupling. The upper end of the feeding seat is fixedly connected with a connecting sleeve. The upper end of the connecting sleeve is fixedly connected with a bearing seat. The upper end of the bearing seat is fixedly connected with a power connection seat. The main shaft is connected with the rotating shaft through the coupling. The coupling is located in the connecting sleeve. The upper end of the main shaft passes through the bearing seat and enters the power connection seat. The motor drives the main shaft to rotate through the transmission component.

[0013] Preferably, the transmission component includes a motor pulley, a belt, and a driven pulley. The motor is fixed on the power connection seat. The output shaft of the motor is connected with the motor pulley. The upper end of the main shaft is connected with the driven pulley. The belt is arranged in cooperation with the motor pulley and the driven pulley.

[0014] Preferably, a bearing is arranged in the bearing seat. The main shaft is rotatably fitted on the bearing.

[0015] Preferably, a lubricating oil hole leading to the upper side of the rotating shaft and the sealing seat is formed on the feeding seat.

[0016] In summary, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model can input water at different temperatures into the temperature control tank through the liquid inlet according to the solidification speed of different raw materials, and then leave through the liquid outlet, so as to continuously carry out water circulation, thereby continuously maintaining the temperature of the mixing sleeve. The structure of the utility model is simple. By adjusting the water temperature, the solidification speed of different raw materials can be accurately controlled, thereby ensuring the smooth progress of the pouring process. During the use process, the water temperature can be flexibly adjusted according to the characteristics of different raw materials, which enhances the flexibility of production, has a wide application range, can meet various production and application requirements, makes the pouring process of easily solidified raw materials smooth, reduces the rejection rate, improves the production efficiency of relatively difficult-to-solidify raw materials. In addition, temperature control helps to ensure that the raw materials maintain the best state during the pouring process, reduces problems such as bubbles and unevenness, and improves the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a partial enlarged schematic diagram of the lower half part of the present utility model.

[0021] In the figure: 1. Feeding seat; 11. First feeding sub-channel; 12. Second feeding sub-channel; 13. Lubricating oil hole; 2. Mixing head; 3. Mixing cavity; 31. Upper mixing cavity; 32. First feeding channel; 33. Second feeding channel; 4. Mixing sleeve; 41. Lower mixing cavity; 42. Temperature control tank; 43. Sealing sleeve; 44. Liquid inlet; 45. Liquid outlet; 5. Discharge nozzle; 6. Sealing seat; 71. Rotating shaft; 72. Motor; 73. Transmission component; 74. Main shaft; 75. Coupling; 76. Motor pulley; 77. Belt; 78. Driven pulley; 81. Connecting sleeve; 82. Bearing seat; 83. Bearing; 84. Power connection seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will combine the attached drawings in the embodiments of the present utility model Figure 1-2 to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the protection scope of the present utility model.

[0023] Embodiment:

[0024] As Figure 1 shown in Figure 2 As shown, the utility model discloses a novel pouring head, which includes a feeding seat 1, a mixing head 2 and a driving mechanism for driving the mixing head 2 to rotate. Among them, the lower end of the feeding seat 1 is fixedly connected with a mixing cavity 3, the lower end of the mixing cavity 3 is fixedly connected with a mixing sleeve 4, and the lower end of the mixing sleeve 4 is fixedly connected with a discharging nozzle 5. An upper mixing cavity 31 is opened in the mixing cavity 3, and a lower mixing cavity 41 connected to the upper mixing cavity 31 is opened in the mixing sleeve 4. The mixing head 2 is rotatably arranged in the upper mixing cavity 31 and the lower mixing cavity 41. A first feeding channel 32 and a second feeding channel 33 leading to the upper side of the upper mixing cavity 31 are opened on the mixing cavity 3. The first feeding channel 32 and the second feeding channel 33 are used to introduce different materials into the upper mixing cavity 31. In the utility model, a temperature control groove 42 is annularly opened on the outer side wall of the mixing sleeve 4, and a sealing sleeve 43 covering and wrapping the temperature control groove 42 is fixedly sleeved outside the mixing sleeve 4. A liquid inlet 44 and a liquid outlet 45 penetrating into the temperature control groove 42 are opened on the sealing sleeve 43. The liquid inlet 44 and the liquid outlet 45 are used for external connection to a water source and are used to continuously input circulating water into the temperature control groove 42.

[0025] The utility model can input water at different temperatures into the temperature control groove 42 through the liquid inlet 44 according to the solidification speed of different raw materials, and then leave through the liquid outlet 45, so as to continuously carry out water circulation, thereby continuously maintaining the temperature of the mixing sleeve 4. Specifically: when pouring raw materials that are easy to solidify, water at a higher temperature can be input into the temperature control groove 42 to prevent it from solidifying in the mixing sleeve 4 or the discharging nozzle 5. When pouring raw materials that are difficult to solidify, water at a lower temperature can be input into the temperature control groove to cool the raw materials in advance, thereby increasing the solidification speed after they are injected into the mold.

[0026] In the utility model, a first feeding sub-channel 11 and a second feeding sub-channel 12 are opened on the feeding seat 1. The first feeding sub-channel 11 and the second feeding sub-channel 12 both extend into the mixing cavity 3 and are communicated with the first feeding channel 32. The first feeding sub-channel 11 and the second feeding sub-channel 12 are used to input some materials with relatively small proportion into the first feeding channel 32.

[0027] In order to ensure the sealing performance on the upper side of the upper mixing cavity 31, a sealing seat 6 fixedly connected to the feeding seat 1 is provided on the upper side of the upper mixing cavity 31. The driving mechanism includes a rotating shaft 71. The lower end of the rotating shaft 71 is fixedly connected with the mixing head 2. The rotating shaft 71 passes upward through the sealing seat 6, and the rotating shaft 71 is in sealed rotational cooperation with the sealing seat 6.

[0028] In the present utility model, the driving mechanism specifically further includes a motor 72, a transmission assembly, a main shaft 74, and a coupling 75. A connecting sleeve 81 is fixedly connected to the upper end of the feeding base 1, and a bearing seat 82 is fixedly connected to the upper end of the connecting sleeve 81. A power connection seat 84 is fixedly connected to the upper end of the bearing seat 82. Among them, the main shaft 74 is connected to the rotating shaft 71 through the coupling 75. The coupling 75 is located within the connecting sleeve 81, and the upper end of the main shaft 74 passes through the bearing seat 82 and enters the power connection seat 84. The motor 72 drives the main shaft 74 to rotate through the transmission assembly.

[0029] When the present utility model is installed on the pouring equipment, the power connection seat 84 is fixed on the pouring equipment.

[0030] Furthermore, the transmission assembly includes a motor pulley 76, a belt 77, and a driven pulley 78. The motor 72 is fixed on the power connection seat 84. The output shaft of the motor 72 is connected to the motor pulley 76. The upper end of the main shaft 74 is connected to the driven pulley 78. The belt 77 is arranged in cooperation with the motor pulley 76 and the driven pulley 78. When the motor 72 operates, it drives the motor pulley 76 to rotate through the output shaft. The motor pulley 76 drives the driven pulley 78 through the belt 77, thereby causing the main shaft 74 to rotate. The main shaft 74 drives the rotating shaft 71 through the coupling 75, thereby causing the mixing head 2 to rotate to mix the raw materials and extrude the material towards the discharge nozzle 5.

[0031] To ensure the smooth and stable rotation of the main shaft 74, a bearing 83 is provided within the bearing seat 82, and the main shaft 74 is rotationally fitted on the bearing 83.

[0032] In the present utility model, a lubricating oil hole 13 is opened on the feeding base 1 and leads to the upper side of the rotating shaft 71 and the sealing seat 6. Through the lubricating oil hole 13, lubricating oil can be injected towards the upper side of the rotating shaft 71 and the sealing seat 6 when needed, for lubricating and maintaining the rotating shaft 71 and the sealing seat 6.

[0033] At the same time, it should be pointed out that the terms used in the present utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the protection scope of the present utility model.

[0034] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A new type of pouring head, characterized in that: The invention comprises a feed seat, a mixing head and a driving mechanism for driving the mixing head to rotate, wherein the lower end of the feed seat is fixedly connected with a mixing chamber, the lower end of the mixing chamber is fixedly connected with a mixing sleeve, the lower end of the mixing sleeve is fixedly connected with a discharge nozzle, an upper mixing chamber is provided in the mixing chamber, a lower mixing chamber connected with the upper mixing chamber is provided in the mixing sleeve, the mixing head is rotatably arranged in the upper mixing chamber and the lower mixing chamber, a first feeding channel and a second feeding channel leading to the upper side of the upper mixing chamber are provided on the mixing chamber, a temperature control groove is provided in an annular outer wall of the mixing sleeve, a sealing sleeve is provided outside the mixing sleeve to cover the temperature control groove, and a liquid inlet and a liquid outlet penetrating into the temperature control groove are provided on the sealing sleeve.

2. A new pouring head according to claim 1, characterized in that: The feed seat is provided with a first feed sub-channel and a second feed sub-channel, and the first feed sub-channel and the second feed sub-channel both extend into the mixing cavity and are connected with the first feed channel.

3. A new pouring head according to claim 1, characterized in that: A sealing seat fixedly connected to the feed seat is disposed on the upper side of the upper mixing chamber, and the driving mechanism comprises a rotating shaft, the lower end of which is fixedly connected to the mixing head, and the rotating shaft passes through the sealing seat upward.

4. A new pouring head according to claim 3, characterized in that: The driving mechanism also includes a motor, a transmission assembly, a main shaft and a coupling. The upper end of the feed seat is fixedly connected to a connecting sleeve, the upper end of the connecting sleeve is fixedly connected to a bearing seat, the upper end of the bearing seat is fixedly connected to a power connecting seat, the main shaft is connected to the rotating shaft through a coupling, the coupling is located in the connecting sleeve, the upper end of the main shaft passes through the bearing seat and enters the power connecting seat, and the motor drives the main shaft to rotate through the transmission assembly.

5. A new pouring head according to claim 4, characterized in that: The transmission assembly includes a motor pulley, a belt and a passive pulley. The motor is fixed on a power connection seat, the output shaft of the motor is connected to the motor pulley, the upper end of the main shaft is connected to the passive pulley, and the belt is cooperatively arranged on the motor pulley and the passive pulley.

6. A new pouring head according to claim 4, characterized in that: A bearing is arranged in the bearing seat, and the main shaft is rotatably fitted on the bearing.

7. A new pouring head according to claim 3, characterized in that: The feed seat is provided with a lubricating oil hole leading to the rotating shaft and the upper side of the sealing seat.

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