Glue dispensing needle floating assembly

Abstract

The utility model discloses a dispensing needle floating assembly which comprises a needle assembly, an elastic assembly and a connecting block assembly, and the dispensing needle floating assembly is elastically connected with the end, far away from a glue outlet, of the needle assembly through one end of the elastic assembly; the connecting block assembly is movably connected with the needle head assembly, and the other end of the elastic assembly is further elastically connected with the connecting block assembly so that buffering acting force can be provided for floating of the needle head assembly relative to the needle head assembly. According to the dispensing needle floating assembly, the two ends of the elastic assembly are connected with the needle assembly and the connecting block assembly respectively, so that movable floating buffering force can be provided for the needle assembly, and a needle on the needle assembly is prevented from being damaged during dispensing. And when the elastic assembly floats, glue discharging of the needle head assembly is not affected, and the glue dispensing stability of the needle head assembly is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing, in particular to a dispensing needle floating assembly. Background Art

[0002] In the dispensing operation, usually a moving mechanism drives a dispensing head to move, and glue is dispensed onto an object to be dispensed through a needle on the dispensing head. Due to reasons such as the movement error of the moving mechanism or the uneven placement of the object to be dispensed, there may be a hard contact between the needle on the dispensing head and the surface of the object to be dispensed. Since the needle is relatively thin, if there is a hard contact between the needle and the object to be dispensed, the needle may be damaged, and then the needle cannot be used. In some precision dispensing applications, the needle has a high precision and is expensive. Therefore, if the needle is frequently damaged, it will cause a lot of economic losses to the enterprise.

[0003] In the prior art, mainly by the way of floating the dispensing needle, the hard contact between the needle and the object to be dispensed is avoided. The elastic floating assembly in the prior art is usually arranged in the dispensing head. When the dispensing head floats, it will drive the expansion and contraction of the glue outlet channel of the dispensing head at the same time, resulting in a change in the space of the glue outlet channel, thus affecting the glue outlet of the dispensing head and causing the problem of unstable glue outlet. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this reason, an object of the utility model is to provide a dispensing needle floating assembly.

[0005] To achieve the above object, an embodiment of the utility model provides a dispensing needle floating assembly, which includes:

[0006] A needle assembly;

[0007] An elastic component, one end of the elastic component is elastically connected to the end of the needle assembly away from the glue outlet end;

[0008] A connecting block assembly, the connecting block assembly is movably connected to the needle assembly, and the other end of the elastic component is also elastically connected to the connecting block assembly to provide a buffering force for the floating of the needle assembly relative to the needle assembly.

[0009] Further, according to an embodiment of the utility model, the needle assembly includes:

[0010] A flow channel connecting piece, the flow channel connecting piece includes a flow channel adapter and a flow pipe, a spring groove is formed between the flow channel adapter and the flow pipe, and one end of the elastic component is arranged in the spring groove;

[0011] A dispensing needle, the dispensing needle is connected to the glue outlet end of the flow tube to output glue externally.

[0012] Further, according to an embodiment of the utility model, the needle assembly further includes:

[0013] A needle fixing cap, one end of the needle fixing cap is connected to the end of the dispensing needle away from the needle glue outlet, and the other end of the needle fixing cap is connected to the flow path adapter to install and fix the dispensing needle between the flow path connector.

[0014] Further, according to an embodiment of the utility model, the dispensing needle floating assembly further includes:

[0015] A sealing ring, an annular groove is further provided at the contact end of the flow tube and the dispensing needle, and the sealing ring is installed at the annular groove to seal the gap between the dispensing needle and the flow tube.

[0016] Further, according to an embodiment of the utility model, the dispensing needle floating assembly further includes:

[0017] A hose connector, the hose connector is connected to the glue inlet end of the flow tube, and a hose connection head is provided on the hose connector, and the hose connection head is used to connect a hose to introduce dispensing glue.

[0018] Further, according to an embodiment of the utility model, the dispensing needle floating assembly further includes:

[0019] A compression nut, the compression nut is threadedly connected to the hose connector to connect and lock the hose and the hose connector.

[0020] Further, according to an embodiment of the utility model, the connection block assembly includes:

[0021] An adapter block, a through hole is provided on the adapter block, and the end of the flow tube away from the dispensing needle passes through the through hole and is movably connected to the hose connector;

[0022] A mounting block, the mounting block is fixedly connected to the adapter block.

[0023] Further, according to an embodiment of the utility model, the elastic component includes:

[0024] A floating spring, the floating spring is installed in the spring groove, one end of the floating spring abuts against the bottom of the spring groove, and the other end provides an elastic force for the adapter block.

[0025] Further, according to an embodiment of the utility model, the elastic component further includes:

[0026] A connecting pipe, the cross-section of the through hole is a stepped structure, the connecting pipe is arranged in the through hole of the trapezoidal structure and is located outside the flow pipe, and the end of the connecting pipe abuts against the other end of the floating spring.

[0027] In the dispensing needle floating assembly provided by the embodiment of the present invention, one end of an elastic assembly is elastically connected to the dispensing end of the needle assembly away from the glue outlet; the connecting block assembly is movably connected to the needle assembly, and the other end of the elastic assembly is also elastically connected to the connecting block assembly to provide a buffering force for the floating of the needle assembly relative to the needle assembly. In this dispensing needle floating assembly, since the two ends of the elastic assembly are respectively connected to the needle assembly and the connecting block assembly, thus, a floating buffering force for the movement of the needle assembly can be provided to avoid damage to the needle on the needle assembly during dispensing. And the floating of the elastic assembly does not affect the glue dispensing of the needle assembly, ensuring the stability of the glue dispensing of the needle assembly. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the dispensing needle floating assembly provided by the embodiment of the present invention;

[0029] Figure 2 It is a schematic cross-sectional structure diagram of the dispensing needle floating assembly provided by the embodiment of the present invention;

[0030] Figure 3 It is an exploded structural diagram of the dispensing needle floating assembly provided by the embodiment of the present invention;

[0031] Figure 4 It is another exploded structural diagram of the dispensing needle floating assembly provided by the embodiment of the present invention;

[0032] Figure 5 It is still another exploded structural diagram of the dispensing needle floating assembly provided by the embodiment of the present invention;

[0033] Figure 6 It is yet another exploded structural diagram of the dispensing needle floating assembly provided by the embodiment of the present invention.

[0034] Reference Numerals:

[0035] Connecting block assembly 10;

[0036] Adapter block 101;

[0037] Through hole 1011;

[0038] Mounting block 102;

[0039] Elastic assembly 20;

[0040] Floating spring 201;

[0041] Connecting pipe 202;

[0042] Needle assembly 30;

[0043] Flow channel connector 301;

[0044] Adapter 3011;

[0045] Flow tube 3012;

[0046] Spring groove 3013;

[0047] Annular groove 30121;

[0048] Dispensing needle 302;

[0049] Needle fixing cap 303;

[0050] Sealing ring 304;

[0051] Hose connector 305;

[0052] Compression nut 306.

[0053] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0054] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present utility model. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0055] Reference to "embodiment" herein means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present utility model. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0056] Refer to Figures 1 to 4, an embodiment of the present utility model provides a dispensing needle floating assembly, including: a needle assembly 30, an elastic assembly 20, and a connection block assembly 10. One end of the elastic assembly 20 is elastically connected to the end of the needle assembly 30 away from the glue outlet end; the connection block assembly 10 is movably connected to the needle assembly 30, and the other end of the elastic assembly 20 is also elastically connected to the connection block assembly 10 to provide a buffering force for the floating of the needle assembly 30 relative to the needle assembly 30.

[0057] Specifically, as shown in Figure 1 and Figure 2 , the needle assembly 30 is elastically connected to the connection block assembly 10 through the elastic assembly 20. In this way, when the glue outlet needle of the needle assembly 30 has a hard contact with the object to be dispensed during the dispensing process. Since the connection block assembly 10 is movably connected to the needle assembly 30. In this way, the entire needle assembly 30 will move upward and elastically contact with the one end of the elastic assembly 20. The elastic assembly 20 can provide a certain buffering force for the needle assembly 30, thereby avoiding the problem of bending and damage of the glue outlet needle of the needle assembly 30. Since the needle assembly 30 moves as a whole. Therefore, it will not affect the normal glue dispensing of the needle assembly 30. Compared with the prior art in which an elastic buffer structure is arranged inside the needle assembly 30 and the glue dispensing accuracy will be affected when the needle floats, the glue dispensing of the dispensing needle floating assembly provided by the embodiment of the present utility model is more stable.

[0058] Referring to Figure 2 and Figure 5 , the needle assembly 30 includes: a flow channel connector 301 and a dispensing needle 302. The flow channel connector 301 includes a flow channel adapter 3011 and a flow tube 3012. A spring groove 3013 is formed between the flow channel adapter 3011 and the flow tube 3012. The one end of the elastic assembly 20 is arranged in the spring groove 3013; the dispensing needle 302 is connected to the glue outlet end of the flow tube 3012 to output glue externally. As shown in Figure 5 , since a spring groove 3013 is formed between the flow channel adapter 3011 and the flow tube 3012. Thus, the elastic assembly 20 can be installed in the spring groove 3013 and sleeved on the outer side of the flow tube 3012. The dispensing needle 302 is connected to the glue outlet end of the flow tube 3012; and the glue inlet end of the flow tube 3012 passes through the connection block assembly 10 and leads out externally. In this way, glue is introduced through the flow tube 3012 and output to the dispensing needle 302 through the flow tube 3012, so that the dispensing needle 302 outputs externally.

[0059] Referring to Figure 4 and Figure 5, the needle assembly 30 further includes: a needle fixing cap 303. One end of the needle fixing cap 303 is connected to the end of the dispensing needle 302 away from the needle glue outlet end, and the other end of the needle fixing cap 303 is connected to the flow path adapter 3011 to install and fix the dispensing needle 302 between the flow path connector 301. The needle fixing cap 303 can be directly connected and fixed to the flow path adapter 3011 by means of threaded connection, thereby locking the glue inlet end of the dispensing needle 302 at the glue outlet end of the flow tube 3012. By threading the dispensing needle 302 and the flow path connection via the needle fixing cap 303, the replacement of the dispensing needle 302 can be made more convenient.

[0060] Refer to Figure 2 and Figure 5 , the dispensing needle floating assembly further includes: a sealing ring 304. An annular groove 30121 is also provided at the contact end of the flow tube 3012 with the dispensing needle 302, and the sealing ring 304 is installed at the annular groove 30121 to seal the gap between the dispensing needle 302 and the flow tube 3012. Thus, glue leakage through the gap between the dispensing needle 302 and the flow tube 3012 can be avoided.

[0061] Refer to Figure 5 , the dispensing needle floating assembly further includes: a hose connector 305. The hose connector 305 is connected to the glue inlet end of the flow tube 3012, and a hose connection head is provided on the hose connector 305, and the hose connection head is used to connect a hose to introduce dispensing glue. As Figure 5 shown, the dispensing needle floating assembly further includes: a compression nut 306. The compression nut 306 is threadedly connected to the hose connector 305 to lock the connection between the hose and the hose connector 305. The connection of the hose can be facilitated through the hose connector 305. Glue can be introduced into the flow tube 3012 of the flow path connector 301 through the hose and output externally through the dispensing needle 302 via the flow tube 3012. In addition, the connection of the hose will not hinder the overall up and down floating of the needle assembly 30. The threaded connection between the compression nut 306 and the hose connector 305 makes the connection and disconnection of the hose more convenient.

[0062] Refer to Figure 5 and Figure 6 , the connection block assembly 10 includes: an adapter block 101 and a mounting block 102. A through hole 1011 is provided on the adapter block 101, and the end of the flow tube 3012 away from the dispensing needle 302 passes through the through hole 1011 and is movably connected to the hose connector 305; the mounting block 102 is fixedly connected to the adapter block 101. As Figure 5 and Figure 6As shown in the figure, through the through hole 1011, the flow tube 3012 of the flow path connector 301 can move relatively up and down with respect to the adapter block 101.

[0063] Referring to Figure 2 and Figure 5 , the elastic component 20 includes: a floating spring 201, the floating spring 201 is installed in the spring groove 3013, one end of the floating spring 201 abuts against the bottom of the spring groove 3013, and the other end provides an elastic acting force for the adapter block 101. As Figure 2 and Figure 5 shown, the elastic component 20 further includes: a connecting pipe 202, the cross-section of the through hole 1011 is a stepped structure, the connecting pipe 202 is arranged in the through hole 1011 of the stepped structure and is located outside the flow tube 3012, and the end of the connecting pipe 202 abuts against the other end of the floating spring 201. Through the stepped structure, the end of the connecting pipe 202 can be abutted against the adapter block 101, and then the connecting pipe 202 can be arranged in the through hole 1011, and the flow tube 3012 can pass through the connecting pipe 202 and the other part of the through hole 1011 and be led out. This structure can, on the one hand, abut the connecting pipe 202 against the floating spring 201. On the other hand, it will not hinder the relative movement between the flow tube 3012 and the connecting block.

[0064] The above are only the embodiments of the present invention, but do not limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure made by using the content of the specification and drawings of the present invention and directly or indirectly applied to other related technical fields shall be within the scope of the patent protection of the present invention by the same token.

[0065] In the description of this specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model without departing from the principle and spirit of the present utility model.

Claims

1. A dispensing needle floating assembly, characterized in that, Comprising: A needle assembly; An elastic component, one end of the elastic component is elastically connected to the end of the needle assembly away from the glue outlet end; A connection block assembly, the connection block assembly is movably connected to the needle assembly, and the other end of the elastic component is also elastically connected to the connection block assembly to provide a buffering force for the floating of the needle assembly relative to the needle assembly.

2. The dispensing needle floating assembly according to claim 1, wherein, The needle assembly includes: A flow channel connector, the flow channel connector includes a flow channel adapter and a flow tube, a spring groove is formed between the flow channel adapter and the flow tube, and the one end of the elastic component is arranged in the spring groove; A dispensing needle, the dispensing needle is connected to the glue outlet end of the flow tube to output glue externally.

3. The dispensing needle floating assembly according to claim 2, wherein The needle assembly further includes: A needle fixing cap, one end of the needle fixing cap is connected to the end of the dispensing needle away from the needle glue outlet end, and the other end of the needle fixing cap is connected to the flow channel adapter to install and fix the dispensing needle and the flow channel connector.

4. The dispensing needle floating assembly according to claim 2, wherein, Further comprising: A sealing ring, an annular groove is further provided at the contact end of the flow tube and the dispensing needle, and the sealing ring is installed at the annular groove to seal the gap between the dispensing needle and the flow tube.

5. The dispensing needle floating assembly according to claim 2, characterized in that, Further comprising: A hose connector, the hose connector is connected to the glue inlet end of the flow tube, and a hose connection head is provided on the hose connector, and the hose connection head is used to connect a hose to introduce dispensing glue.

6. The dispensing needle floating assembly according to claim 5, wherein Further comprising: A compression nut, the compression nut is threadedly connected to the hose connector to connect and lock the hose and the hose connector.

7. The dispensing needle floating assembly according to claim 5, wherein The connection block assembly includes: An adapter block, a through hole is provided on the adapter block, and the end of the flow tube away from the dispensing needle passes through the through hole and is movably connected to the hose connector; A mounting block, the mounting block is fixedly connected to the adapter block.

8. The dispensing needle floating assembly according to claim 7, wherein, The elastic component includes: A floating spring, the floating spring is installed in the spring groove, one end of the floating spring abuts against the bottom of the spring groove, and the other end provides an elastic force for the adapter block.

9. The dispensing needle floating assembly according to claim 8, wherein The elastic component further includes: A connecting tube, the cross section of the through hole is a stepped structure, the connecting tube is arranged in the through hole of the trapezoidal structure and is located outside the flow tube, and the end of the connecting tube abuts against the other end of the floating spring.

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