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CN-224224285-U - Flange connection assembly and plastic color matching machine

CN224224285UCN 224224285 UCN224224285 UCN 224224285UCN-224224285-U

Abstract

The utility model belongs to the technical field of plastic color matching machines, in particular to a flange connection assembly and a plastic color matching machine, which comprise an upper flange plate and a lower flange plate which are distributed up and down, wherein the upper flange plate and the lower flange plate are fixedly erected up and down through a connecting plate, the middle part of the upper flange plate is provided with an upper material passing hole, the middle part of lower flange board has offered the lower material hole that corresponds with last material hole site, is provided with the ventilation barrel that feeds through last material hole and lower material hole between upper flange board and the lower flange board, has offered the gas pocket that can communicate with the external world on the lateral wall of ventilation barrel. The utility model has simple structure, reasonable design and low cost, is mainly used for being connected between the negative pressure conveying device and the port of the plastic color matching machine, and redundant gas can be discharged outwards from the air hole of the ventilation cylinder body in the process that the material enters the lower material passing hole from the upper material passing hole so as to effectively balance the air pressure of the inner cavity of the plastic color matching machine and the outside.

Inventors

  • CHEN XIANPENG

Assignees

  • 浙江朔翔科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250612

Claims (8)

  1. 1. A flange connection assembly is characterized by comprising an upper flange plate (1) and a lower flange plate (2) which are distributed up and down, wherein the upper flange plate (1) and the lower flange plate (2) are fixedly erected up and down through a connecting plate (3), an upper material passing hole (4) is formed in the middle of the upper flange plate (1), a lower material passing hole (5) corresponding to the upper material passing hole (4) in position is formed in the middle of the lower flange plate (2), a ventilation cylinder body (6) for communicating the upper material passing hole (4) with the lower material passing hole (5) is arranged between the upper flange plate (1) and the lower flange plate (2), and air holes (7) capable of being communicated with the outside are formed in the side wall of the ventilation cylinder body (6).
  2. 2. A flange connection assembly according to claim 1, wherein the aperture of the upper feed passing hole (4) is smaller than that of the lower feed passing hole (5), an upper feed passing extending cylinder part (8) is formed by extending the hole wall of the upper feed passing hole (4) towards the lower flange plate (2), a lower feed passing extending cylinder part (9) is formed by extending the hole wall of the lower filter hole towards the upper flange, and an upper port ring of the lower feed passing extending cylinder part (9) is sleeved on the periphery of the lower end of the upper feed passing extending cylinder part (8).
  3. 3. A flange connection assembly according to claim 2, characterized in that the upper end of the breather cylinder (6) is abutted against and fixed on the lower end face of the upper flange plate (1), and the lower end of the breather cylinder (6) is fitted over the inner wall face of the lower feed-through extension cylinder portion (9).
  4. 4. A flange connection assembly according to claim 2 or 3, characterized in that an inner ventilation space is provided between the lower end of the upper feed extension cylinder (8) and the lower port of the lower feed hole (5), an outer ventilation space is provided between the upper port of the lower feed extension cylinder (9) and the lower end surface of the upper flange plate (1), and the air holes (7) correspond to the outer ventilation space.
  5. 5. A flange connection assembly according to claim 4, characterized in that the breather cylinder (6) is a breather filter cylinder structure with air holes (7) uniformly distributed on the side wall.
  6. 6. A flanged connection assembly according to claim 1 or 2, characterized in that the axis of the upper feed hole (4) is co-linear with the axis of the lower feed hole (5).
  7. 7. A flanged connection assembly according to claim 1, characterized in that the connection plates (3) are circumferentially distributed and arranged radially of the breather cylinder (6).
  8. 8. A plastic color matching machine, which is characterized by comprising the flange connection assembly as claimed in any one of claims 1-7.

Description

Flange connection assembly and plastic color matching machine Technical field: The utility model belongs to the technical field of plastic color matching machines, and particularly relates to a flange connection assembly and a plastic color matching machine. The background technology is as follows: In the plastic color matching production process, how to accurately and efficiently add the materials such as color master batch, toner and the like is important. At present, a cyclone feeder (or negative pressure suction machine) is widely adopted for the plastic color matching machine to realize automatic conveying of color master batch, the working principle is that the color master batch is sucked and fixed in the cyclone feeder of a master batch feeding port of the plastic color matching machine from a storage container by utilizing the negative pressure generated by a fan through a pipeline, and then the color master batch in the cyclone feeder enters the plastic color matching machine through the opening and closing of a valve. However, the negative pressure-based feeding method has a remarkable technical problem in the application of the plastic color matching machine that when color master batch enters a relatively closed space in the plastic color matching machine through the cyclone feeding machine, a large amount of color master batch and air quickly gushes in to form a positive pressure environment in the closed space instantaneously, and the positive pressure environment can promote the accurate delivery of other auxiliary material delivery, such as the accurate delivery of a toner delivery device, a diffusion oil delivery device and other additive delivery devices. The invention comprises the following steps: The utility model aims to provide a flange connection assembly and a plastic color matching machine, which are used for being connected between a negative pressure conveying device and a port of the plastic color matching machine, and effectively balancing the air pressure of an inner cavity of the plastic color matching machine and the outside by virtue of air holes on a ventilation cylinder body. The utility model is realized in the following way: The utility model provides a flange joint assembly, is including upper flange board and the lower flange board that distributes from top to bottom, erect fixedly from top to bottom through the connecting plate between upper flange board and the lower flange board, go up the material hole has been seted up at the middle part of upper flange board, lower material hole corresponding with last material hole is seted up at the middle part of lower flange board, be provided with the ventilation cylinder that communicates material hole and lower material hole between upper flange board and the lower flange board, set up the gas pocket that can communicate with the external world on the lateral wall of ventilation cylinder. In the above-mentioned flange joint assembly, the aperture of going up the material hole is less than the aperture of going down the material hole, and the pore wall of going up the material hole extends towards lower flange board direction and is formed with and goes up material extension section of thick bamboo, and the pore wall of going down the filtration hole extends towards upper flange direction and is formed with and goes down material extension section of thick bamboo, and the last port ring cover of lower material extension section of thick bamboo is at the lower extreme periphery of last material extension section of thick bamboo. In the flange connection assembly, the upper end of the ventilation cylinder body is abutted against and fixed on the lower end face of the upper flange plate, and the lower end of the ventilation cylinder body is sleeved on the inner wall face of the lower feeding extension cylinder part. In the above flange connection assembly, an inner ventilation space is reserved between the lower end of the upper feeding extension cylinder and the lower port of the lower feeding hole, an outer ventilation space is reserved between the upper port of the lower feeding extension cylinder and the lower end face of the upper flange plate, and the air holes correspond to the outer ventilation space in position. In the flange connection assembly, the ventilation cylinder body is of a ventilation filter cylinder structure with air holes uniformly distributed on the side wall. In the above flange connection assembly, the axis of the upper feed hole and the axis of the lower feed hole are located on the same straight line. In the above flange connection assembly, the connecting plates are circumferentially distributed in a plurality and are radially arranged along the breather cylinder. Another object of the present utility model is to provide a plastic color machine comprising a flange connection assembly as defined in any one of the above. Compared with the prior art, the utility model has the outstanding advantages