A multistage mixing spray device for polyvinyl chloride blowing agents

Abstract

The utility model provides a kind of multistage mixing spraying device of polyvinyl chloride blowing agent, belong to chemical machinery technical field, to solve the problem that existing residual blowing agent is easily dried by wind and hardened quickly, and then cause the blockage of spray head, including spraying base, spraying transmission belt, mixed material box, spraying support frame, material spray head, protective shield, spraying lifting mechanism and spraying protection mechanism;The spraying transmission belt is connected inside spraying base;The mixed material box is fixedly connected at spraying base rear end face;The spraying support frame is slidably connected in spraying base interior;The material spray head is fixedly connected at spraying support frame lower end face;The protective shield rotates at spraying support frame right side;The spraying lifting mechanism is arranged in spraying base interior;The spraying protection mechanism is arranged in spraying support frame interior.By spraying lifting mechanism, realize lifting motor to slide material spray head, by spraying protection mechanism, realize protective shield to protect material spray head inside.

Description

Technical Field

[0001] This utility model belongs to the field of chemical machinery technology, and more specifically, it relates to a multi-stage mixing and spraying device for polyvinyl chloride foaming agent. Background Technology

[0002] When products are connected, gaps will be created. These gaps need to be filled with polyvinyl chloride foam. To fill these gaps, the product is placed on a multi-stage mixing spraying device. The mixing spraying device moves the product, and when the product moves to the nozzle on the mixing spraying device, the nozzle sprays polyvinyl chloride foam to fill the gaps, thus filling the gaps in the product.

[0003] According to CN202320853342.2, this application provides a mixing spraying device and a spraying system, belonging to the field of spraying equipment technology. The spraying device includes a device body with a mixing chamber. The mixing chamber includes an upper chamber and a lower chamber that are interconnected. The device body has a first filling port and a second filling port, respectively connected to the upper chamber, for inputting a first component and a second component. The mixed components in the upper chamber flow into the lower chamber under external force or gravity. The device body also has a spray port and a pressurization port, respectively connected to the lower chamber, with the pressurization port for connecting an external pressurization device. The mixing spraying device of this application delivers the first and second components to the upper chamber through the first and second filling ports. After mixing in the upper chamber, the mixture enters the lower chamber and is then sprayed out under pressure. The mixed components polymerize within a certain time to form a film coating, which can be used as a glove.

[0004] Based on the above, existing multi-stage mixing spraying devices generally spray polyvinyl chloride foaming agent through nozzles. However, the nozzles are usually exposed on the device. After spraying, foaming agent is easily left at the nozzle. The residual foaming agent is exposed to the external environment and is easily dried by the wind, which can cause the nozzle to become clogged and affect its normal use. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a multi-stage mixing and spraying device for polyvinyl chloride (PVC) foaming agent. This solves the problem that existing multi-stage mixing and spraying devices typically spray PVC foaming agent through nozzles, but the nozzles are usually exposed on the device. After spraying, foaming agent easily remains at the nozzles. This residual foaming agent, exposed to the external environment, is easily dried and hardens rapidly, causing nozzle blockage and affecting its normal use.

[0006] The purpose and effect of this utility model's multi-stage mixing and spraying device for polyvinyl chloride foaming agent are achieved by the following specific technical means:

[0007] A multi-stage mixing and spraying device for polyvinyl chloride (PVC) foaming agent includes a spraying base, a spraying conveyor belt, a mixing tank, a spraying support frame, material nozzles, a protective cover, a spraying lifting mechanism, and a spraying protection mechanism. The spraying conveyor belt is driven and connected to the inside of the upper end face of the spraying base. The mixing tank is fixedly connected to the middle position of the rear end face of the spraying base. The spraying support frame is slidably connected to the middle position of the inside of the upper end face of the spraying base, and the upper side of the spraying support frame slides on the upper side of the spraying conveyor belt. Multiple sets of material nozzles are provided, and each set of material nozzles is fixedly connected to the lower end face of the spraying support frame. The multiple sets of material nozzles and the mixing tank are fixedly connected by a water pump. The protective cover rotates to the right side of the spraying support frame, and the multiple sets of material nozzles are located inside the protective cover. The spraying lifting mechanism is located inside the spraying base. The spraying protection mechanism is located inside the spraying support frame.

[0008] Furthermore, the spraying lifting mechanism includes a lifting motor and a lifting shaft; the lifting motor is fixedly connected to the middle position inside the spraying base; there are two sets of lifting shafts, which are rotatably connected to the front and rear sides of the middle position inside the spraying base, respectively, and the front set of lifting shafts is coaxially fixedly connected to the shaft of the lifting motor.

[0009] Furthermore, the spraying lifting mechanism also includes: lifting pulleys and lifting transmission belts; there are two sets of lifting pulleys, which are coaxially fixedly connected to the middle of the two sets of lifting shafts; the lifting transmission belt is connected to the outer end face of the two sets of lifting pulleys, and the two sets of lifting pulleys and the lifting transmission belt together form a synchronous belt transmission mechanism.

[0010] Furthermore, the spraying lifting mechanism also includes: lifting screw holes and lifting lead screws; there are two sets of lifting screw holes, which are respectively opened on the front and rear sides of the lower end face of the spraying support frame; there are two sets of lifting lead screws, which are coaxially fixedly connected to the upper side of two sets of lifting shafts, and the two sets of lifting lead screws are threadedly connected to the two sets of lifting screw holes.

[0011] Furthermore, the spray protection mechanism includes a protective rack and a protective gear; the protective rack is fixedly connected to the front side inside the spray base; the protective gear is rotatably connected to the lower side inside the right end face of the spray support frame, and the right side of the protective gear slides inside the spray base. The protective rack and the protective gear mesh together to form a gear and rack transmission mechanism.

[0012] Furthermore, the spray protection mechanism also includes: a protective pulley, a protective transmission belt, and a connecting pulley; the protective pulley is coaxially and fixedly connected to the front side of the protective gear; the connecting pulley is rotatably connected to the upper side inside the spray support frame; and the protective transmission belt is drivingly connected to the outer end faces of the protective pulley and the connecting pulley.

[0013] Furthermore, the spray protection mechanism also includes: a protective rotating shaft and a protective torsion spring; the protective rotating shaft is fixedly connected inside the spray support frame, the middle position of the protective rotating shaft is fixedly connected to the upper side of the protective cover, and the front side of the protective rotating shaft is coaxially fixedly connected to the connecting pulley; the protective torsion spring is fixedly connected to the rear side inside the spray support frame, and the protective torsion spring is fixedly connected to the rear side of the protective rotating shaft.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention employs a spraying lifting mechanism. When the material nozzle sprays polyvinyl chloride (PVC) foaming agent, the lifting motor drives the spraying support frame and the material nozzle to slide. The material nozzle slides to the lower side and fits against the gaps in the product for spraying, ensuring the quality of PVC foaming agent filling the gaps. After the material nozzle has finished spraying the PVC foaming agent, it slides to the upper side, facilitating the handling and movement of the product.

[0016] This invention employs a spray protection mechanism. When the material nozzle slides to the lower side, the protective cover is located on the upper side of the spray support frame, exposing the material nozzle to the outside. This facilitates the spraying of polyvinyl chloride foaming agent. When the material nozzle slides to the upper side, the protective cover protects the material nozzle from the air, preventing the residual polyvinyl chloride foaming agent from hardening rapidly and causing clogging of the material nozzle due to exposure to the outside. This also makes it easier for workers to use the mixing spraying device. Attached Figure Description

[0017] Figure 1 This is a front view structural schematic diagram of the multi-stage mixing spraying device of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the multi-stage mixing spraying device of this utility model.

[0019] Figure 3 This is a schematic diagram of the overall transmission structure of the spraying lifting mechanism of this utility model.

[0020] Figure 4 This is a schematic diagram of the transmission structure of the spraying lifting mechanism of this utility model.

[0021] Figure 5 This is a schematic diagram of the overall transmission structure of the spray protection mechanism of this utility model.

[0022] Figure 6 This is a schematic diagram of the transmission structure of the spray protection mechanism of this utility model.

[0023] Figure 7 This is a schematic diagram of the structure of the protective cover of this utility model.

[0024] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0025] 1. Spraying base; 2. Spraying transmission belt; 3. Mixing material bin; 4. Spraying support frame; 401. Lifting screw hole; 5. Material nozzle; 6. Lifting motor; 7. Lifting shaft; 701. Lifting pulley; 8. Lifting transmission belt; 9. Lifting screw; 10. Protective rack; 11. Protective gear; 1101. Protective pulley; 12. Protective transmission belt; 13. Protective shaft; 1301. Connecting pulley; 1302. Protective torsion spring; 14. Protective cover. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0027] Example 1:

[0028] As attached Figure 1 To be continued Figure 4 As shown:

[0029] This utility model provides a multi-stage mixing and spraying device for polyvinyl chloride (PVC) foaming agent, including a spraying base 1, a spraying conveyor belt 2, a mixing tank 3, a spraying support frame 4, material nozzles 5, a protective cover 14, and a spraying lifting mechanism; the spraying conveyor belt 2 is connected to the inside of the upper end face of the spraying base 1; the mixing tank 3 is fixedly connected to the middle position of the rear end face of the spraying base 1; the spraying support frame 4 is slidably connected to the middle position of the inside of the upper end face of the spraying base 1, and the upper side of the spraying support frame 4 slides on the upper side of the spraying conveyor belt 2; multiple sets of material nozzles 5 are provided, and the multiple sets of material nozzles 5 are fixedly connected to the lower end face of the spraying support frame 4, and the multiple sets of material nozzles 5 and the mixing tank 3 are fixedly connected by a water pump; the protective cover 14 rotates on the right side of the spraying support frame 4, and the multiple sets of material nozzles 5 are located inside the protective cover 14; the spraying lifting mechanism is located inside the spraying base 1.

[0030] The spraying lifting mechanism includes a lifting motor 6 and a lifting shaft 7. The lifting motor 6 is fixedly connected to the middle position inside the spraying base 1. There are two sets of lifting shafts 7, which are rotatably connected to the front and rear sides of the middle position inside the spraying base 1, respectively. The front set of lifting shafts 7 is coaxially fixedly connected to the shaft of the lifting motor 6. During use, the shaft of the lifting motor 6 rotates, driving the front set of lifting shafts 7 to rotate.

[0031] The spraying lifting mechanism also includes: lifting pulleys 701 and lifting transmission belt 8; there are two sets of lifting pulleys 701, which are coaxially fixedly connected to the middle of the two sets of lifting shafts 7; the lifting transmission belt 8 is connected to the outer end face of the two sets of lifting pulleys 701, and the two sets of lifting pulleys 701 and the lifting transmission belt 8 together form a synchronous belt transmission mechanism. During use, the rotation of the front set of lifting shafts 7 drives the rotation of the front set of lifting pulleys 701, and the rotation of the front set of lifting pulleys 701 drives the lifting transmission belt 8, which in turn drives the two sets of lifting shafts 7 to rotate.

[0032] The spraying lifting mechanism also includes: lifting screw holes 401 and lifting screws 9; there are two sets of lifting screw holes 401, which are respectively opened on the front and rear sides of the lower end face of the spraying support frame 4; there are two sets of lifting screws 9, which are coaxially fixedly connected to the upper side of two sets of lifting rotating shafts 7, and the two sets of lifting screws 9 are threadedly connected to the two sets of lifting screw holes 401. During use, the rotation of the lifting rotating shaft 7 drives the lifting screws 9 to rotate. The lifting screws 9 rotate inside the lifting screw holes 401, thereby driving the spraying support frame 4 to slide. The sliding of the spraying support frame 4 drives the material nozzle 5 to slide. When the material nozzle 5 slides to the lower side, the material nozzle 5 sprays polyvinyl chloride foaming agent.

[0033] The specific usage and function of this first embodiment are as follows:

[0034] During use, the rotating shaft of the lifting motor 6 drives the front set of lifting shafts 7 to rotate, which in turn drives the front set of lifting pulleys 701 to rotate. The rotation of the front set of lifting pulleys 701 drives the lifting transmission belt 8, which in turn drives the two sets of lifting shafts 7 to rotate. The rotation of the lifting shafts 7 drives the lifting screw 9 to rotate, which in turn rotates inside the lifting screw hole 401, thereby causing the spraying support frame 4 to slide. The sliding of the spraying support frame 4 causes the material nozzle 5 to slide. When the material nozzle 5 slides to the lower side, the material nozzle 5 sprays polyvinyl chloride foaming agent, thus enabling the spraying support frame 4 to control the spraying height of the material nozzle 5.

[0035] Example 2:

[0036] Based on Example 1, as shown in the appendix Figure 5 To be continued Figure 7 As shown:

[0037] This utility model provides a multi-stage mixing and spraying device for polyvinyl chloride foaming agent, and also includes a spraying protection mechanism. The spraying protection mechanism is set inside the spraying support frame 4 and includes a protective rack 10 and a protective gear 11. The protective rack 10 is fixedly connected to the front side inside the spraying base 1. The protective gear 11 is rotatably connected to the lower side inside the right end face of the spraying support frame 4. The right side of the protective gear 11 slides inside the spraying base 1. The protective rack 10 and the protective gear 11 mesh together to form a gear and rack transmission mechanism. During use, the spraying support frame 4 slides, driving the protective gear 11 to slide. When the protective gear 11 slides to the position of the protective rack 10 and meshes, it drives the protective gear 11 to rotate.

[0038] The spray protection mechanism also includes: a protective pulley 1101, a protective transmission belt 12, and a connecting pulley 1301; the protective pulley 1101 is coaxially fixedly connected to the front side of the protective gear 11; the connecting pulley 1301 is rotatably connected to the upper side inside the spray support frame 4; the protective transmission belt 12 is connected to the outer end faces of the protective pulley 1101 and the connecting pulley 1301. During use, the rotation of the protective gear 11 drives the rotation of the protective pulley 1101, the rotation of the protective pulley 1101 drives the protective transmission belt 12, and the protective transmission belt 12 drives the connecting pulley 1301 to rotate.

[0039] The spray protection mechanism also includes a protective rotating shaft 13 and a protective torsion spring 1302. The protective rotating shaft 13 is fixedly connected inside the spray support frame 4, and the middle position of the protective rotating shaft 13 is fixedly connected to the upper side of the protective cover 14. The front side of the protective rotating shaft 13 is coaxially fixedly connected to the connecting pulley 1301. The protective torsion spring 1302 is fixedly connected to the rear side inside the spray support frame 4, and the protective torsion spring 1302 is fixedly connected to the rear side of the protective rotating shaft 13. During use, the connecting pulley 1301 rotates, causing the protective rotating shaft 13 to rotate. The rotation of the protective rotating shaft 13 causes the protective torsion spring 1302 to extend and retract. The rotation of the protective rotating shaft 13 causes the protective cover 14 to rotate. The elasticity of the protective torsion spring 1302 causes the protective cover 14 to rotate and be positioned on the upper side of the spray support frame 4, which facilitates the normal use of the material nozzle 5.

[0040] The specific usage and function of this second embodiment are as follows:

[0041] During use, the sliding of the spray support frame 4 drives the sliding of the protective gear 11. When the protective gear 11 slides to the position of the protective rack 10 and engages, it drives the protective gear 11 to rotate. The rotation of the protective gear 11 drives the protective pulley 1101 to rotate. The rotation of the protective pulley 1101 drives the protective transmission belt 12 to drive the transmission. The transmission of the protective transmission belt 12 drives the connecting pulley 1301 to rotate. The rotation of the connecting pulley 1301 drives the protective rotating shaft 13 to rotate. The rotation of the protective rotating shaft 13 drives the protective torsion spring 1302 to extend and retract. The rotation of the protective rotating shaft 13 drives the protective cover 14 to rotate. The elasticity of the protective torsion spring 1302 causes the protective cover 14 to rotate and be positioned on the upper side of the spray support frame 4, which facilitates the normal use of the material nozzle 5. When the spray support frame 4 slides to the upper side and the material nozzle 5 stops spraying polyvinyl chloride foaming agent, the protective cover 14 protects the material nozzle 5 inside.

[0042] The following points should be noted in this article:

[0043] 1. The accompanying drawings of this embodiment only involve the structures involved in the embodiments of this utility model. Other structures can refer to the general design.

[0044] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0045] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A multi-stage mixing and spraying device for polyvinyl chloride foaming agent, comprising a spraying base (1), a spraying transmission belt (2), a mixing material box (3), a spraying support frame (4), a material nozzle (5), a protective cover (14), a spraying lifting mechanism, and a spraying protection mechanism; wherein the spraying transmission belt (2) is connected to the inside of the upper end face of the spraying base (1); characterized in that: The mixing tank (3) is fixedly connected to the middle of the rear end face of the spraying base (1); the spraying support frame (4) is slidably connected to the middle of the upper end face of the spraying base (1), and the upper side of the spraying support frame (4) slides on the upper side of the spraying transmission belt (2); multiple sets of material nozzles (5) are provided, and multiple sets of material nozzles (5) are fixedly connected to the lower end face of the spraying support frame (4), and multiple sets of material nozzles (5) and the mixing tank (3) are fixedly connected by a water pump; the protective cover (14) rotates on the right side of the spraying support frame (4), and multiple sets of material nozzles (5) are located inside the protective cover (14); the spraying lifting mechanism is set inside the spraying base (1); the spraying protection mechanism is set inside the spraying support frame (4).

2. The multi-stage mixing and spraying device for polyvinyl chloride foaming agent as described in claim 1, characterized in that: The spraying lifting mechanism includes a lifting motor (6) and a lifting shaft (7); the lifting motor (6) is fixedly connected to the middle position inside the spraying base (1); there are two sets of lifting shafts (7), and the two sets of lifting shafts (7) are rotatably connected to the front and rear sides of the middle position inside the spraying base (1), and the front set of lifting shafts (7) and the shaft of the lifting motor (6) are coaxially fixedly connected.

3. The multi-stage mixing and spraying device for polyvinyl chloride foaming agent as described in claim 2, characterized in that: The spraying lifting mechanism also includes: lifting pulleys (701) and lifting transmission belts (8); there are two sets of lifting pulleys (701), and the two sets of lifting pulleys (701) are coaxially fixedly connected to the middle position of the two sets of lifting shafts (7); the lifting transmission belts (8) are connected to the outer end faces of the two sets of lifting pulleys (701), and the two sets of lifting pulleys (701) and the lifting transmission belts (8) together form a synchronous belt transmission mechanism.

4. The multi-stage mixing and spraying device for polyvinyl chloride foaming agent as described in claim 2, characterized in that: The spraying lifting mechanism also includes: lifting screw holes (401) and lifting screws (9); there are two sets of lifting screw holes (401), which are respectively opened on the front and rear sides of the lower end face of the spraying support frame (4); there are two sets of lifting screws (9), which are respectively coaxially fixedly connected to the upper side of two sets of lifting shafts (7), and the two sets of lifting screws (9) are respectively threadedly connected to the two sets of lifting screw holes (401).

5. The multi-stage mixing and spraying device for polyvinyl chloride foaming agent as described in claim 1, characterized in that: The spray protection mechanism includes a protective rack (10) and a protective gear (11); the protective rack (10) is fixedly connected to the front side inside the spray base (1); the protective gear (11) is rotatably connected to the lower side inside the right end face of the spray support frame (4), and the right side of the protective gear (11) slides inside the spray base (1). The protective rack (10) and the protective gear (11) mesh together to form a gear and rack transmission mechanism.

6. The multi-stage mixing and spraying device for polyvinyl chloride foaming agent as described in claim 5, characterized in that: The spray protection mechanism also includes: a protective pulley (1101), a protective transmission belt (12), and a connecting pulley (1301); the protective pulley (1101) is coaxially fixedly connected to the front side of the protective gear (11); the connecting pulley (1301) is rotatably connected to the upper side inside the spray support frame (4); the protective transmission belt (12) is drive-connected to the outer end face of the protective pulley (1101) and the connecting pulley (1301).

7. The multi-stage mixing and spraying device for polyvinyl chloride foaming agent as described in claim 6, characterized in that: The spray protection mechanism also includes: a protective rotating shaft (13) and a protective torsion spring (1302); the protective rotating shaft (13) is fixedly connected inside the spray support frame (4), the middle position of the protective rotating shaft (13) is fixedly connected to the upper side of the protective cover (14), and the front side of the protective rotating shaft (13) is coaxially fixedly connected to the connecting pulley (1301); the protective torsion spring (1302) is fixedly connected to the rear side inside the spray support frame (4), and the protective torsion spring (1302) is fixedly connected to the rear side of the protective rotating shaft (13).

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