Chemical raw material filling equipment

Abstract

The utility model relates to the technical field of filling equipment, and particularly discloses chemical raw material filling equipment which comprises an air cylinder, a filling main sleeve, a core rod and a sealing plug, a feeding port is formed in the side portion of the filling main sleeve, a piston rod of the air cylinder is fixedly connected to the top of the filling main sleeve, the core rod is coaxially fixed in the filling main sleeve, and the sealing plug is arranged in the filling main sleeve. The bottom of the filling main sleeve is coaxially and fixedly connected with a pipe body with the size smaller than that of the filling main sleeve, the core rod penetrates out of the pipe body, the bottom of the core rod is detachably connected with a sealing plug, the pipe body is sleeved with a sleeve, the top of the sleeve is provided with a diameter expanding part, and the diameter expanding part is slidably connected to the outer portion of the pipe body through a sealing ring. A spring is arranged between the diameter expanding part and the bottom of the filling main sleeve in an abutting mode, the bottom of the sleeve is arranged on the top of the sealing plug in an abutting mode, the diameter of the diameter expanding part is larger than that of the sealing plug, the structure is ingenious, and the equipment cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to filling equipment technical field especially relates to a chemical raw material filling equipment. BACKGROUND

[0002] Chemical raw materials mostly have harmfulness, in order to prevent the drip of filling head after filling, the existing filling head generally sets up the anti drip structure, can refer to the patent literature of announcement no. CN205917010U, it sets up the stem in the filling main cover, the top of filling main cover is fixedly connected with the cylinder, the stem is driven up and down by the cylinder, and the bottom of the stem is connected with the sealing plug, so that the sealing plug moves with the stem to seal or open the filling nozzle, setting the sealing plug can effectively avoid the drip of filling nozzle. However, in actual working condition, the position of filling main cover is not fixed, in order to let the filling nozzle extend into the container, an additional cylinder is needed to drive the filling main cover to lift, which leads to two cylinders working together for one filling, which is high in working cost, inconvenient to maintain, inconvenient to debug and control, and needs to be improved. SUMMARY

[0003] To solve the problems mentioned in the background art, the purpose of the utility model is to provide a chemical raw material filling equipment.

[0004] In order to achieve the above-mentioned target, the technical scheme of the utility model is as follows:

[0005] A chemical raw material filling equipment, comprising a cylinder, a filling main cover, a stem and a sealing plug, the side of the filling main cover is provided with a feed inlet, the piston rod of the cylinder is fixedly connected to the top of the filling main cover, the stem is coaxially fixed in the filling main cover, the bottom of the filling main cover is coaxially fixed with a pipe body with a smaller size than itself, the stem passes through the pipe body and the bottom of the stem is detachably connected with the sealing plug, the outside of the pipe body is sleeved with a sleeve, the top of the sleeve is formed with an enlarged diameter part, the enlarged diameter part is slidably connected to the outside of the pipe body through a sealing ring, a spring is arranged between the enlarged diameter part and the bottom of the filling main cover, the bottom of the sleeve is arranged on the top of the sealing plug, and the diameter of the enlarged diameter part is larger than the diameter of the sealing plug.

[0006] Further, the bottom of the sleeve is formed with a reduced diameter part, the inner diameter of the reduced diameter part is larger than the diameter of the stem, and the outer diameter of the reduced diameter part corresponds to the diameter of the sealing plug.

[0007] Further, the filling main cover comprises an end cover and a cylinder body, the top end of the cylinder body is open, the bottom end is closed, the end cover is threadedly connected to the top of the cylinder body, the stem is fixedly connected to the bottom of the end cover, the pipe body is fixedly connected to the bottom of the cylinder body and is in communication with the cylinder body, and the feed inlet is arranged on the side of the cylinder body.

[0008] The beneficial effect of the present invention is that the filling main sleeve can be driven to descend and the sealing plug can be opened by only one cylinder, which is achieved in the following way: the filling main sleeve is driven to descend by the cylinder, and the expanded diameter part of the sleeve will first abut against the bottle mouth of the container. When the filling main sleeve continues to descend, the bottom of the sleeve will leave the sealing plug, and the raw material can be poured into the container. When the container is almost full, the filling main sleeve is driven to rise again by the cylinder, and the sleeve will be reset to abut against the sealing plug under the action of the spring, thereby achieving an anti-drip effect. Compared with the filling head in the background technology, only one cylinder is needed to complete the two-step operation, which effectively reduces the equipment cost and improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0010] Explanation of the accompanying figures: 1. Cylinder, 2. Core rod, 3. Sealing plug, 4. Sleeve, 41. Diameter expansion part, 42. Diameter reduction part, 5. Sealing ring, 6. Spring, 7. End cover, 8. Cylinder, 81. Tube body, 82. Feed port. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0012] like Figure 1 As shown, a chemical raw material filling equipment includes a cylinder 1, a filling main sleeve, a core rod 2 and a sealing plug 3. The side of the canning main sleeve is provided with a feed port 82, which is used to connect to the storage tank. The piston rod of the cylinder 1 is fixed to the top of the filling main sleeve, the core rod 2 is coaxially fixed in the filling main sleeve, and the bottom of the filling main sleeve is coaxially fixed with a tube body 81 smaller than itself. The core rod 2 passes through the tube body 81 and the bottom of the core rod 2 is threadedly connected to the sealing plug 3. The outer part of the body 81 is provided with a sleeve 4, and the top of the sleeve 4 is formed with an expanded diameter portion 41. The expanded diameter portion 41 is slidably connected to the outside of the tube body 81 through a sealing ring 5. The sealing ring 5 can achieve sealing between the expanded diameter portion 41 and the tube body 81 to prevent liquid leakage. A spring 6 is provided between the expanded diameter portion 41 and the bottom of the filling main sleeve. The spring 6 is a compression spring. Its function is to allow the bottom of the sleeve 4 to rest on the top of the sealing plug 3. The diameter of the expanded diameter portion 41 is larger than the diameter of the sealing plug 3.

[0013] In actual use, the air cylinder 1 needs to be fixed on a rack (not shown in the figure), and during filling, the container needs to be arranged below the filling main sleeve and fixed relative to the cylinder body of the air cylinder 1, and during filling, the filling main sleeve is driven to descend by the air cylinder 1, the expanded diameter portion 41 of the sleeve pipe 4 will first abut against the bottle opening of the container, and when the filling main sleeve continues to descend, the bottom of the sleeve pipe 4 will be away from the sealing plug 3, and then the container can be filled with raw materials, and when the container is about to be filled, the filling main sleeve is driven to ascend by the air cylinder 1, and the sleeve pipe 4 will be reset to abut against the sealing plug 3 under the action of the spring 6, so as to realize the effect of preventing dripping, and one air cylinder 1 can complete the functions of moving the filling main sleeve and opening or closing the sealing plug 3, effectively reducing the cost of the equipment and improving the convenience of operation.

[0014] In the embodiment, the bottom of the sleeve pipe 4 is formed with a reduced diameter portion 42, the inner diameter of the reduced diameter portion 42 is greater than the diameter of the core rod 2, and the outer diameter of the reduced diameter portion 42 corresponds to the diameter of the sealing plug 3, which is reasonable in design and avoids that the sealing plug 3 is too large in size.

[0015] In the embodiment, the filling main sleeve comprises an end cover 7 and a cylinder body 8, the top end of the cylinder body 8 is open and the bottom end is closed, the end cover 7 is threadedly connected to the top of the cylinder body 8, the core rod 2 is welded to the bottom of the end cover 7, the pipe body 81 is welded to the bottom of the cylinder body 8 and the pipe body 81 is in communication with the cylinder body 8, and the feeding port 82 is welded to the side of the cylinder body 8, which is reasonable in design and facilitates processing and assembly.

[0016] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and all modifications, equivalent replacements, improvements, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A chemical raw material filling device, comprising a cylinder (1), a filling main sleeve, a core rod (2) and a sealing plug (3), wherein a feed port (82) is provided on the side of the filling main sleeve, characterized in that: The piston rod of the cylinder (1) is fixed to the top of the filling main sleeve, the core rod (2) is coaxially fixed in the filling main sleeve, the bottom of the filling main sleeve is coaxially fixed with a tube body (81) smaller than itself, the core rod (2) passes through the tube body (81) and the bottom of the core rod (2) is detachably connected to a sealing plug (3), the outside of the tube body (81) is sleeved with a sleeve (4), the top of the sleeve (4) is formed with an expanded diameter portion (41), the expanded diameter portion (41) is slidably connected to the outside of the tube body (81) through a sealing ring (5), a spring (6) is arranged between the expanded diameter portion (41) and the bottom of the filling main sleeve, the bottom of the sleeve (4) is pressed against the top of the sealing plug (3), and the diameter of the expanded diameter portion (41) is larger than the diameter of the sealing plug (3).

2. A chemical raw material filling equipment according to claim 1, characterized in that: A reduced diameter portion (42) is formed at the bottom of the sleeve (4), the inner diameter of the reduced diameter portion (42) is larger than the diameter of the core rod (2), and the outer diameter of the reduced diameter portion (42) corresponds to the diameter of the sealing plug (3).

3. The chemical raw material filling equipment according to claim 1, characterized in that: The filling main sleeve comprises an end cover (7) and a cylinder (8); the top end of the cylinder (8) is open and the bottom end is closed; the end cover (7) is threadedly connected to the top of the cylinder (8); the core rod (2) is fixed to the bottom of the end cover (7); the tube (81) is fixed to the bottom of the cylinder (8) and the tube (81) is in communication with the cylinder (8); and the feed port (82) is provided on the side of the cylinder (8).

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