Multipurpose extrusion assembly

Abstract

The utility model discloses a multipurpose extrusion assembly which comprises a back plate, a single-shaft extrusion head and a coaxial extrusion head, wherein the single-shaft extrusion head and the coaxial extrusion head are arranged on the same side of the back plate; the single-shaft extrusion head comprises a single-shaft sleeve and a needle head arranged at the lower end of the single-shaft sleeve, a single-shaft extrusion channel is formed in the single-shaft sleeve, and the lower end of the single-shaft extrusion channel is coaxially communicated with the needle head; a single-shaft feeding hole is formed in the upper end of the single-shaft extrusion channel; the coaxial extrusion head comprises an outer extrusion part, an inner extrusion part and a connecting end cover; an outer extrusion channel and an inner extrusion channel are respectively arranged in the outer extrusion part and the inner extrusion part; the outer extrusion part and the inner extrusion part are fixedly connected through the connecting end cover, the inner extrusion part extends into the outer extrusion channel, and the lower ends of the inner extrusion channel and the outer extrusion channel are flush; a coaxial outer feeding port is formed in the outer extrusion part, and a coaxial inner feeding port is formed in the upper end of the inner extrusion channel. The double-material extrusion device has the advantages that material single-shaft extrusion, double-material double-shaft extrusion and double-material coaxial extrusion can be achieved, and the three modes are easy and convenient to switch.

Description

Technical Field

[0001] The utility model relates to the technical fields of biomedical engineering and materials science engineering, and particularly relates to a multi-purpose extrusion assembly. Background Art

[0002] At present, the common extrusion heads on the market include single-axis extrusion heads, multi-axis extrusion heads, and coaxial extrusion heads. When the equipment realizes extrusion, the extrusion head of the corresponding method is selected for installation according to the actual situation, and then fluid extrusion or electrospinning is realized. When it is necessary to change the extrusion method, the operator needs to remove the extrusion head on the machine and replace it with the extrusion head of the corresponding method, which is not only troublesome to install and disassemble, but also increases the workload of the operator. Moreover, since the specifications of the extrusion heads for different extrusion methods are not the same, different extrusion heads may need to be matched with equipment of different specifications, or intermediate parts are used to realize the assembly between the two, which not only increases the use cost but also increases the complexity of installation and disassembly.

[0003] Moreover, for fluid extrusion or electrospinning, the material generally needs to be cured and formed after extrusion to make it have corresponding properties. At present, generally, after the material is extruded, it needs to be transferred to the corresponding curing equipment for curing. The intermediate transfer process not only delays time but also may cause material pollution. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a multi-purpose extrusion assembly, so as to solve the foregoing problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A multi-purpose extrusion assembly includes a back plate, and a single-axis extrusion head and a coaxial extrusion head which are arranged side by side and spaced apart on the same side of the back plate;

[0007] The single-axis extrusion head includes a single-axis sleeve and a needle head arranged at the lower end of the single-axis sleeve. A single-axis extrusion channel penetrating through the upper and lower ends of the single-axis sleeve is arranged inside the single-axis sleeve. The lower end of the single-axis extrusion channel is coaxially communicated with the needle head; the upper end of the single-axis extrusion channel forms a single-axis feed port;

[0008] The coaxial extrusion head includes an outer extrusion part, an inner extrusion part, and a connecting end cover; outer extrusion channels and inner extrusion channels penetrating through the upper and lower ends of the outer extrusion part and the inner extrusion part are respectively arranged inside the outer extrusion part and the inner extrusion part; the outer extrusion part and the inner extrusion part are coaxially fixedly connected through the connecting end cover. The inner extrusion part extends into the outer extrusion channel, and the lower ends of the inner extrusion channel and the outer extrusion channel are flush; a coaxial outer feed port connecting the outside and the outer extrusion channel is arranged on the outer extrusion part, and the upper end of the inner extrusion channel forms a coaxial inner feed port;

[0009] The specifications of the single-axis feed port, the coaxial outer feed port, and the coaxial inner feed port are the same.

[0010] Preferably, the outer extrusion part includes a coaxial outer sleeve and an outer shaft. The upper end of the outer shaft is coaxially sleeved at the lower end of the coaxial outer sleeve. An outer upper extrusion channel and an outer lower extrusion channel that penetrate through the upper and lower ends thereof are respectively arranged inside the coaxial outer sleeve and the outer shaft. The upper end of the outer lower extrusion channel is coaxially communicated with the outer upper extrusion channel to form an outer extrusion channel. A coaxial outer feed port that communicates the outer upper extrusion channel with the outside is arranged on the coaxial outer sleeve.

[0011] Preferably, the inner extrusion part includes a coaxial inner sleeve and an inner shaft. The upper end of the inner shaft is coaxially sleeved at the lower end of the coaxial inner sleeve. An inner upper extrusion channel and an inner lower extrusion channel that penetrate through the upper and lower ends thereof are respectively arranged inside the coaxial inner sleeve and the inner shaft. The inner upper extrusion channel and the inner lower extrusion channel are coaxially communicated to form an inner extrusion channel. The upper end of the inner upper extrusion channel forms a coaxial inner feed port.

[0012] The connecting end cover is sleeved on the outer periphery of the coaxial inner sleeve, and the coaxial outer sleeve is sleeved on the outer periphery of the connecting end cover. The connecting end cover fixedly connects the coaxial inner sleeve and the coaxial outer sleeve. The inner shaft coaxially extends into the outer lower extrusion channel through the outer upper extrusion channel, and the lower end of the inner shaft is flush with the lower end of the outer shaft.

[0013] Preferably, it further includes a curing module, magnetic adsorption contacts, and a curing circuit board. The curing circuit board and the magnetic adsorption contacts are installed on the back plate. The magnetic adsorption contacts are connected to the curing circuit board, and the curing module is installed on the magnetic adsorption contacts.

[0014] Preferably, the magnetic adsorption contacts include magnetic adsorption male contacts and magnetic adsorption female contacts. The magnetic adsorption female contacts are installed on the back plate on the same side as the extrusion head. The magnetic adsorption male contacts are connected to the curing circuit board and are arranged on the other side of the back plate. The magnetic adsorption female contacts are in mating contact with the magnetic adsorption male contacts, and the curing module is installed on the magnetic adsorption female contacts.

[0015] Preferably, the curing module is an ultraviolet irradiation device and / or an infrared irradiation device and / or a solvent spraying device.

[0016] Preferably, the curing circuit board includes a 5V output and a 90V oscillation output. The three pins of the magnetic adsorption female contacts are respectively defined as GND, 5V, and 90V oscillation. When the extruded material needs to be cured by ultraviolet irradiation or infrared irradiation, the magnetic adsorption male contacts on the curing circuit board are connected to GND and 5V. When the extruded material needs to be cured by solvent spraying, the magnetic adsorption male contacts on the curing circuit board are connected to GND and 90V oscillation.

[0017] The beneficial effects of the present utility model are as follows: 1. It can achieve single-axis extrusion of materials, dual-material dual-axis extrusion, and dual-material coaxial extrusion, and the switching among the three modes is simple and convenient. 2. The replacement of the extrusion head is simpler, with a clear structure, convenient to use, not easy to be blocked, and more convenient to use. 3. It can achieve the instant curing of the extruded material, without the need to transfer it to the corresponding curing equipment for curing, saving time and avoiding the contamination of the extruded material during the transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural diagram of the extrusion assembly in an embodiment of the present utility model;

[0019] Figure 2 is a structural diagram of the single-axis extrusion head in an embodiment of the present utility model;

[0020] Figure 3 is a structural diagram of the coaxial extrusion head in an embodiment of the present utility model.

[0021] In the figure: 1. Coaxial inner sleeve; 2. Connecting end cover; 3. Coaxial outer sleeve; 4. Inner shaft; 5. Outer shaft; 6. Single-axis sleeve; 7. Needle; 8. Single-axis feed port; 9. Coaxial outer feed port; 10. Coaxial inner feed port; 11. Back plate; 12. Magnetic contact; 13. Curing module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0023] As Figure 1 shown, in this embodiment, a multi-purpose extrusion assembly is provided, including a back plate 11 and a single-axis extrusion head and a coaxial extrusion head that are arranged side by side and spaced apart on the same side of the back plate 11; wherein,

[0024] The single-axis extrusion head includes a single-axis sleeve 6 and a needle 7 provided at the lower end of the single-axis sleeve 6. A single-axis extrusion channel penetrating through the upper and lower ends of the single-axis sleeve 6 is arranged inside the single-axis sleeve 6, and the lower end of the single-axis extrusion channel is coaxially communicated with the needle 7; the upper end of the single-axis extrusion channel forms a single-axis feed port 8. For the structure of the single-axis extrusion head, refer to the attached Figure 2 , and the extruded material enters through the single-axis feed port 8 and flows out from the lower end of the needle 7.

[0025] The coaxial extrusion head includes an outer extrusion part, an inner extrusion part, and a connecting end cover 2; an outer extrusion channel and an inner extrusion channel penetrating through the upper and lower ends thereof are respectively arranged inside the outer extrusion part and the inner extrusion part; the outer extrusion part and the inner extrusion part are coaxially fixedly connected through the connecting end cover 2, the inner extrusion part extends into the outer extrusion channel, and the lower ends of the inner extrusion channel and the outer extrusion channel are flush; a coaxial outer feed port 9 connecting the outside and the outer extrusion channel is arranged on the outer extrusion part, and the upper end of the inner extrusion channel forms a coaxial inner feed port 10. The extrusion material can enter from the coaxial outer feed port 9 and flow out from the lower end of the outer extrusion channel, or the extrusion material enters from the coaxial inner feed port 10 and flows out from the lower end of the inner extrusion channel, or two base materials enter from the coaxial outer feed port 9 and the coaxial inner feed port 10 respectively and flow out together from the lower ends of the outer extrusion channel and the inner extrusion channel.

[0026] In this embodiment, the single-axis feed port 8, the coaxial outer feed port 9, and the coaxial inner feed port 10 have the same specifications. The device docked with the extrusion head can select the connected feed port according to the actual situation to achieve extrusion without replacing the device with a matching specification. Moreover, the device docked with the extrusion head can be connected to the three feed ports simultaneously with pipes, and the corresponding pipes can be controlled to be opened and closed according to the actual situation, so as to achieve the corresponding extrusion, which is very convenient to use.

[0027] In this embodiment, when the extrusion assembly is in use, when there is only one extrusion material, the single-axis extrusion head can be selected to achieve extrusion, or the coaxial extrusion head can be selected to extrude only through the outer extrusion part or only through the inner extrusion part. When there are two extrusion materials, only the coaxial extrusion head can be used to extrude simultaneously with the outer extrusion part and the inner extrusion part, or the outer extrusion part / inner extrusion part in the single-axis extrusion head and the coaxial extrusion head can be selected to extrude simultaneously. Which specific method to adopt can be selected according to the actual needs, which can better meet the actual needs.

[0028] In this embodiment, for the structure of the coaxial extrusion head, see the appendix Figure 3 , the outer extrusion part includes a coaxial outer sleeve 2 and an outer shaft 5, and the upper end of the outer shaft 5 is coaxially sleeved on the lower end of the coaxial outer sleeve 2; an outer upper extrusion channel and an outer lower extrusion channel penetrating through the upper and lower ends thereof are respectively arranged inside the coaxial outer sleeve 2 and the outer shaft 5, and the upper end of the outer lower extrusion channel is coaxially communicated with the outer upper extrusion channel to form an outer extrusion channel; a coaxial outer feed port 9 communicating the outer upper extrusion channel and the outside is arranged on the coaxial outer sleeve 2.

[0029] The inner extrusion part includes a coaxial inner sleeve 1 and an inner shaft 4. The upper end of the inner shaft 4 is coaxially sleeved on the lower end of the coaxial inner sleeve 1. An inner upper extrusion channel and an inner lower extrusion channel that penetrate through the upper and lower ends thereof are respectively arranged inside the coaxial inner sleeve 1 and the inner shaft 4. The inner upper extrusion channel and the inner lower extrusion channel are coaxially communicated to form an inner extrusion channel. The upper end of the inner upper extrusion channel forms a coaxial inner feed port 10.

[0030] The connecting end cover 2 is sleeved on the outer periphery of the coaxial inner sleeve 1. The coaxial outer sleeve 3 is sleeved on the outer periphery of the connecting end cover 2. The connecting end cover 2 fixedly connects the coaxial inner sleeve 1 and the coaxial outer sleeve 3. The inner shaft 4 coaxially extends into the outer lower extrusion channel through the outer upper extrusion channel. The lower end of the inner shaft 4 is flush with the lower end of the outer shaft 5.

[0031] In this embodiment, since the extruded material needs to be cured to have corresponding properties after extrusion or electrospinning, the extrusion assembly further includes a curing module 13, magnetic adsorption contacts 12, and a curing circuit board. The curing circuit board and the magnetic adsorption contacts 12 are installed on the back plate 11. The magnetic adsorption contacts 12 are connected to the curing circuit board. The curing module 13 is installed on the magnetic adsorption contacts 12.

[0032] Specifically, the magnetic adsorption contacts 12 include a magnetic adsorption male contact and a magnetic adsorption female contact. The magnetic adsorption female contact is installed on the back plate 11 on the same side as the extrusion head. The magnetic adsorption male contact is connected to the curing circuit board and is arranged on the other side of the back plate 11. The magnetic adsorption female contact is in mating contact with the magnetic adsorption male contact. The curing module 13 is installed on the magnetic adsorption female contact.

[0033] In this embodiment, the curing module 13 is an ultraviolet irradiation device and / or an infrared irradiation device and / or a solvent spraying device. When curing, the corresponding curing method can be selected according to the actual situation to achieve curing.

[0034] In this embodiment, the curing circuit board can achieve 24V input, 5V output, and 90V oscillation output. The 5V output can supply power to the ultraviolet lamp and the infrared lamp. The 90V oscillation output can make the solvent spraying work, and can meet the curing requirements of various materials. The three pins of the magnetic adsorption female contact are respectively defined as GND, 5V, and 90V oscillation. When the extruded material needs to be cured by ultraviolet irradiation or infrared irradiation, the magnetic adsorption male contact on the curing circuit board accesses GND and 5V. When the extruded material needs to be cured by solvent spraying, the magnetic adsorption male contact on the curing circuit board accesses GND and 90V oscillation.

[0035] In this embodiment, corresponding mounting holes are provided on the backplane 11 to mount components such as corresponding extrusion heads, curing circuit boards, magnetic contact points 12, etc. on the backplane 11. Corresponding fixing holes are also provided on the backplane 11 for mounting the backplane 11 at corresponding positions or devices.

[0036] By adopting the above technical solutions disclosed by the present utility model, the following beneficial effects are obtained:

[0037] The present utility model provides a multi-purpose extrusion assembly, which can realize single-axis extrusion of materials, double-material double-axis extrusion, and double-material coaxial extrusion, and the switching between the three modes is simple. The replacement of the extrusion head is simpler, the structure is clear and convenient, it is not easy to be blocked, and it is more convenient to use. It can realize the instant curing of the extruded material, without the need to transfer it to a corresponding curing device for curing, saving time and avoiding the contamination of the extruded material during the transfer process.

[0038] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A multi-purpose extrusion assembly, characterized in that: It includes a back plate and a uniaxial extrusion head and a coaxial extrusion head which are arranged in parallel and spaced relation on the same side of the back plate; The uniaxial extrusion head comprises a uniaxial sleeve and a needle disposed at the lower end of the uniaxial sleeve, wherein the interior of the uniaxial sleeve is provided with a uniaxial extrusion channel penetrating the upper and lower ends thereof, wherein the lower end of the uniaxial extrusion channel is coaxially connected to the needle; and the upper end of the uniaxial extrusion channel forms a uniaxial feed port; The coaxial extrusion head comprises an outer extrusion part, an inner extrusion part and a connection end cover; the outer extrusion part and the inner extrusion part are respectively provided with an outer extrusion channel and an inner extrusion channel penetrating the upper and lower ends thereof; the outer extrusion part and the inner extrusion part are coaxially fixedly connected via the connection end cover, the inner extrusion part extends into the outer extrusion channel, and the lower ends of the inner extrusion channel and the outer extrusion channel are flush; the outer extrusion part is provided with a coaxial outer feed port connecting the outside world and the outer extrusion channel, and the upper end of the inner extrusion channel forms a coaxial inner feed port; The specifications of the uniaxial feed port, the coaxial outer feed port and the coaxial inner feed port are the same.

2. The multi-purpose extrusion assembly according to claim 1, characterized in that: The outer extrusion part includes a coaxial outer sleeve and an outer shaft, the upper end of the outer shaft is coaxially sleeved on the lower end of the coaxial outer sleeve; the interiors of the coaxial outer sleeve and the outer shaft are respectively provided with an outer upper extrusion channel and an outer lower extrusion channel running through the upper and lower ends thereof, the upper end of the outer lower extrusion channel is coaxially connected with the outer upper extrusion channel to form an outer extrusion channel; the coaxial outer sleeve is provided with a coaxial outer feed port connecting the outer upper extrusion channel and the outside world.

3. The multi-purpose extrusion assembly according to claim 2, characterized in that: The inner extrusion part comprises a coaxial inner sleeve and an inner shaft, wherein the upper end of the inner shaft is coaxially sleeved on the lower end of the coaxial inner sleeve; the inner parts of the coaxial inner sleeve and the inner shaft are respectively provided with an inner upper extrusion channel and an inner lower extrusion channel penetrating the upper and lower ends thereof, wherein the inner upper extrusion channel and the inner lower extrusion channel are coaxially connected to form an inner extrusion channel; the upper end of the inner upper extrusion channel forms a coaxial inner feed port; The connecting end cover is sleeved on the outer circumference of the coaxial inner sleeve, and the coaxial outer sleeve is sleeved on the outer circumference of the connecting end cover, and the connecting end cover fixes the coaxial inner sleeve and the coaxial outer sleeve; the inner shaft coaxially extends into the outer lower extrusion channel through the outer upper extrusion channel, and the lower end of the inner shaft is flush with the lower end of the outer shaft.

4. The multi-purpose extrusion assembly according to any one of claims 1 to 3, characterized in that: It also includes a curing module, a magnetic contact and a curing circuit board. The curing circuit board and the magnetic contact are mounted on the back plate. The magnetic contact is connected to the curing circuit board, and the curing module is mounted on the magnetic contact.

5. The multi-purpose extrusion assembly according to claim 4, characterized in that: The magnetic contact includes a magnetic male contact and a magnetic female contact, the magnetic female contact is installed on the back panel on the same side as the extrusion head, the magnetic male contact is connected to the curing circuit board and is arranged on the other side of the back panel, the magnetic female contact is in cooperative contact with the magnetic male contact, and the curing module is installed on the magnetic female contact.

6. The multi-purpose extrusion assembly according to claim 5, characterized in that: The curing module is an ultraviolet irradiation device and / or an infrared irradiation device and / or a solvent spray device.

7. The multi-purpose extrusion assembly according to claim 6, characterized in that: The curing circuit board includes a 5V output and a 90V oscillation output, and the three pins of the magnetic female contact are defined as GND, 5V and 90V oscillation respectively; when the extruded material needs to be cured by ultraviolet or infrared irradiation, the magnetic male contact on the curing circuit board is connected to GND and 5V; when the extruded material needs to be cured by solvent spray, the magnetic male contact on the curing circuit board is connected to GND and 90V oscillation.

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