Dispensing head structure with swing protection function
By introducing swing connection and elastic reset mechanisms into the dispensing head structure, the problem of bending dispensing needle is easily damaged during the dispensing process, and the needle protection and glue sealing are achieved.
Patent Information
- Application Number
- CN202323417151.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-14
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-14
AI Technical Summary
During the dispensing process, the bent dispensing needle is prone to hard contact with the inner wall of the dispensing item, resulting in damage. It is difficult for the prior art to effectively avoid such damage.
Design a dispensing head structure with swing protection, in which the needle assembly and the turntable can be swingly connected, and the end of the bending needle and the dispensing are controlled through the first and second swing arms, limiting blocks and return springs. The surface achieves elastic buffer contact and avoids hard contact.
It effectively avoids the hard contact between the bent dispensing needle and the inner wall of the dispensing item, protects the needle, ensures its service life, and prevents glue leakage through a sealing ring.
Smart Images
Figure CN222152637U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of glue dispensing equipment, in particular to a glue dispensing head structure with swing protection. Background Art
[0002] In the process of dispensing glue inside some cylindrical objects, a bent dispensing needle is usually used for rotary dispensing. During dispensing, the needle assembly can be driven to rotate by the turntable. Since the needle assembly is provided with a bent dispensing needle, glue can be output through the bent dispensing needle. In this way, the object to be glued can be dispensed with glue by the bent dispensing needle. Since the bent dispensing needle is a bent structure, it can dispense glue for the vertically arranged object to be glued. For example, it is usually used for dispensing glue on the inner wall of a cylindrical object. Since the bent dispensing needle is close to the object to be glued during the process of dispensing glue, the end of the bent dispensing needle may contact the inner wall of the object to be glued. When hard contact occurs, the bent dispensing needle may be damaged. Utility Model Content
[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to provide a dispensing head structure with swing protection.
[0004] To achieve the above-mentioned purpose, the dispensing head structure with swing protection according to the embodiment of the utility model includes:
[0005] Turntable;
[0006] The needle assembly, the turntable is used to drive the needle assembly to rotate, the needle assembly is provided with a bent dispensing needle, the needle assembly and the turntable are swingably connected to control the elastic buffering contact between the end of the bent needle and the dispensing surface.
[0007] Further, according to an embodiment of the utility model, the needle assembly also includes:
[0008] A needle seat, one end of which is connected to one end of the bent dispensing needle, and the other end of which is connected to the end of the turntable, a first swing arm and a second swing arm are respectively provided on both sides of the other end of the needle seat, and the needle seat swings around the first swing arm and the second swing arm as the rotating axis.
[0009] Furthermore, according to an embodiment of the utility model, a first notch adapted to the first swing arm and a second notch adapted to the second swing arm are respectively provided on both sides of the end of the turntable, the first swing arm is arranged in the first notch, and the second swing arm is arranged in the second notch.
[0010] Furthermore, according to an embodiment of the utility model, a limit block is also provided on the other end of the needle seat, and a third notch is also provided at the end of the turntable corresponding to the limit block, and the third notch and the limit block are used to limit the swing angle of the needle seat and the bent dispensing needle.
[0011] Further, according to an embodiment of the utility model, a return spring is also provided at the end of the turntable, and one end thereof is in elastic contact with the other end of the needle seat to apply an elastic return force to the needle seat.
[0012] Further, according to an embodiment of the utility model, the end of the turntable is also provided with a spring groove, and the return spring is installed in the spring groove.
[0013] Further, according to an embodiment of the utility model, the dispensing head with swing protection further includes:
[0014] A first sealing ring, a glue outlet head is also provided at the end of the turntable, a first sealing ring groove is provided on the glue outlet head, and the first sealing ring is arranged in the first sealing ring groove to seal the gap between the turntable and the needle seat.
[0015] Further, according to an embodiment of the utility model, the dispensing head with swing protection further includes:
[0016] A second sealing ring, a second sealing ring groove is also provided at the needle seat and the bent dispensing needle, and the second sealing ring is arranged in the second sealing ring groove to seal the gap between the needle seat and the bent dispensing needle.
[0017] Further, according to an embodiment of the utility model, the dispensing head with swing protection also includes: a nut, and the turntable and the needle seat are fixedly connected by the nut.
[0018] Further, according to an embodiment of the utility model, the dispensing head with swing protection also includes: a needle clamping cap, and the needle seat and the bent dispensing needle are fixedly connected through the needle clamping cap.
[0019] The embodiment of the utility model provides a dispensing head structure with swing protection, which is used to drive the needle assembly to rotate through a turntable. The needle assembly is provided with a bent dispensing needle. The needle assembly and the turntable can be swingably connected to control the end of the bent needle to elastically buffer the contact with the dispensing surface. In this way, when the bent dispensing needle contacts the inner wall, a certain elastic swing can be used to control the end of the bent needle to elastically buffer the contact with the dispensing surface. The bent dispensing needle can be prevented from making hard contact with the inner wall of the object being dispensed, thereby preventing the bent dispensing needle from bending, thereby protecting the bent dispensing needle. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic diagram of the structure of a dispensing head with swing protection provided by the utility model;
[0021] Figure 2 A schematic diagram of the exploded structure of the dispensing head with swing protection provided by the utility model;
[0022] Figure 3 This is a partial enlarged structural schematic diagram of the structure A of the dispensing head with swing protection provided by the utility model;
[0023] Figure 4 A partial enlarged structural schematic diagram of a dispensing head with swing protection provided by the utility model;
[0024] Figure 5 A partial enlarged structural schematic diagram of a dispensing head with swing protection provided by the utility model;
[0025] Figure 6 This is a partial enlarged structural schematic diagram of the dispensing head structure with swing protection provided by the utility model.
[0026] Reference numerals
[0027] Turntable 10;
[0028] Needle assembly 20;
[0029] First gap 101;
[0030] A second gap 102;
[0031] The third gap 103;
[0032] Spring groove 104;
[0033] Glue outlet 105;
[0034] Needle assembly 20;
[0035] Needle seat 201;
[0036] First swing arm 2011;
[0037] Second swing arm 2012;
[0038] Limit block 2013;
[0039] Bending dispensing needle 2014;
[0040] Nut 30;
[0041] Needle card cap 40;
[0042] Return spring 50;
[0043] A first sealing ring 60;
[0044] The second sealing ring 70 .
[0045] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0046] In order to make the technical personnel in the technical field better understand the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described in combination with the drawings in the embodiment of the present invention. Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those commonly understood by the technical personnel in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0048] See also Figures 1 to 3 The present invention provides a dispensing head structure with swing protection, comprising: a turntable 10 and a needle assembly 20, wherein the turntable 10 is used to drive the needle assembly 20 to rotate, and the needle assembly 20 is provided with a bent dispensing needle 2014, and the needle assembly 20 and the turntable 10 are swingably connected to control the end of the bent needle to elastically buffer the contact with the dispensing surface. Figure 1 and Figure 2As shown in , during glue dispensing, the turntable 10 can drive the needle assembly 20 to rotate. Since the needle assembly 20 is provided with a bent glue dispensing needle 2014, glue can be output through the bent glue dispensing needle 2014. In this way, the bent glue dispensing needle 2014 can be used to dispense glue to the object to be glued. Since the bent glue dispensing needle 2014 is a bent structure, it can dispense glue to the object to be glued vertically. For example, it is usually used for dispensing glue on the inner wall of a cylindrical object. The turntable 10 drives the bent glue dispensing needle 2014 on the needle assembly 20 to rotate, and at the same time controls the glue to be ejected from the bent glue dispensing needle 2014. When it rotates one circle, one circle of glue dispensing on the inner wall of the cylindrical object can be achieved. Since the end of the bent glue dispensing needle 2014 may contact the inner wall of the object to be glued when the bent glue dispensing needle 2014 is close to the object to be glued, when hard contact occurs, the bent glue dispensing needle 2014 may be damaged. In order to avoid damage to the bent glue dispensing needle 2014, it is necessary to provide a certain buffering force for the bent glue dispensing needle 2014 when the bent glue dispensing needle touches the inner wall. The needle assembly 20 is connected to the turntable 10 in a swingable manner. In this way, when the bent glue dispensing needle 2014 contacts the inner wall, it can swing with a certain elasticity to control the end of the bent needle to elastically buffer the contact with the glue dispensing surface. In this way, the bent glue dispensing needle 2014 can be prevented from having a hard contact with the inner wall of the object to be glued. In this way, the bent glue dispensing needle 2014 can be prevented from bending, and the bent glue dispensing needle 2014 can be protected.
[0049] See also Figure 3 The dispensing head with swing protection also includes a nut 30, and the turntable 10 and the needle seat 201 are fixedly connected by the nut 30. The needle assembly 20 also includes a needle seat 201, one end of the needle seat 201 is connected to one end of the bent dispensing needle 2014, and the other end of the needle seat 201 is connected to the end of the turntable 10. The two sides of the other end of the needle seat 201 are respectively provided with a first swing arm 2011 and a second swing arm 2012, and the needle seat 201 swings with the first swing arm 2011 and the second swing arm 2012 as the rotation axis. Figure 3 As shown in the figure, the first swing arm 2011 and the second swing arm 2012 can form a swing axis, so that the needle seat 201 can swing with the first swing arm 2011 and the second swing arm 2012 as the rotation axis. When the bent dispensing needle 2014 contacts the inner wall, the needle seat 201 can swing with a certain elasticity, thereby controlling the elastic buffering contact between the end of the bent needle and the dispensing surface.
[0050] See also Figure 3The two sides of the end of the turntable 10 are respectively provided with a first notch 101 adapted to the first swing arm 2011 and a second notch 102 adapted to the second swing arm 2012. The first swing arm 2011 is arranged in the first notch 101, and the second swing arm 2012 is arranged in the second notch 102. Figure 3 As shown in , the first swing arm 2011 and the second swing arm 2012 can be cylindrical structures, which is conducive to the swing of the first swing arm 2011 and the second swing arm 2012. At the same time, the first notch 101 and the second notch 102 are interfaces adapted to the first swing arm 2011 and the second swing arm 2012. In this way, the first swing arm 2011 and the second swing arm 2012 can rotate within the limited range of the first notch 101 and the second notch 102, avoiding the first swing arm 2011 and the second swing arm 2012 from sliding back and forth.
[0051] See also Figure 3 , a limit block 2013 is also provided on the other end of the needle seat 201, and a third notch 103 is also provided at the end of the turntable 10 corresponding to the limit block 2013. The third notch 103 and the limit block 2013 are used to limit the swing angle of the needle seat 201 and the bent dispensing needle 2014. Through the interaction force between the limit block 2013 and the third notch 103, the swing angle of the needle seat 201 can be limited, so that the bent needle is within a relatively small swing amplitude. Generally, the swing amplitude is within the range that satisfies the bent dispensing needle 2014 without hard contact. When the needle seat 201 reaches the maximum swing amplitude, the limit block 2013 will conflict with the bottom of the third notch 103, so that the maximum swing amplitude can be limited.
[0052] See also Figure 4 and Figure 5 The end of the turntable 10 is also provided with a return spring 50, one end of which is in elastic contact with the other end of the needle seat 201 to apply an elastic return force to the needle seat 201. Figure 5As shown in , the end of the turntable 10 is also provided with a spring groove 104, and the reset spring 50 is installed in the spring groove 104. After the needle seat 201 and the turntable 10 are connected through the nut 30, the reset spring 50 can provide a certain reset force for the needle seat 201. When the bent dispensing needle 2014 contacts the inner wall of the object to be dispensed, the needle seat 201 will swing. At this time, the reset spring 50 will provide a certain elastic force for the needle seat 201, so that the bent dispensing needle 2014 has no hard contact with the inner wall of the object to be dispensed, and the bent dispensing needle 2014 can be quickly reset.
[0053] See also Figure 5 The dispensing head with swing protection also includes: a first sealing ring 60, and the end of the turntable 10 is also provided with a dispensing head 105, and the dispensing head 105 is provided with a first sealing ring 60 groove, and the first sealing ring 60 is arranged in the first sealing ring 60 groove to seal the gap between the turntable 10 and the needle seat 201. Figure 5 As shown in the figure, since the needle seat 201 and the turntable 10 are connected by the nut 30, a certain gap may be generated between the needle seat 201 and the turntable 10. In order to avoid leakage of glue, the gap between the turntable 10 and the needle seat 201 can be sealed by the first sealing ring 60.
[0054] See also Figure 6 The dispensing head with swing protection also includes: a needle cap 40 and a second sealing ring 70, and the needle seat 201 and the bent dispensing needle 2014 are fixedly connected through the needle cap 40. A groove for the second sealing ring 70 is also provided at the needle seat 201 and the bent dispensing needle 2014, and the second sealing ring 70 is arranged in the groove of the second sealing ring 70 to seal the gap between the needle seat 201 and the bent dispensing needle 2014. Figure 6 As shown in the figure, since the needle seat 201 and the bent glue dispensing needle 2014 are connected through the needle cap 40, a certain gap may be generated between the needle seat 201 and the bent glue dispensing needle 2014, in order to avoid leakage of glue. The gap between the needle seat 201 and the bent glue dispensing needle 2014 is sealed.
[0055] The above are only embodiments of the utility model, but they do not limit the patent scope of the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above specific implementations, or replace some of the technical features therein with equivalents. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the utility model patent.
[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does 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.
[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention, all of which are within the scope of protection of the present invention.
Claims
1. A dispensing head structure with swing protection, characterized in that: include: Turntable; The needle assembly, the turntable is used to drive the needle assembly to rotate, the needle assembly is provided with a bent dispensing needle, the needle assembly and the turntable are swingably connected to control the elastic buffering contact between the end of the bent needle and the dispensing surface.
2. The dispensing head structure with swing protection according to claim 1 is characterized in that: The needle assembly further comprises: A needle seat, one end of which is connected to one end of the bent dispensing needle, and the other end of which is connected to the end of the turntable, a first swing arm and a second swing arm are respectively provided on both sides of the other end of the needle seat, and the needle seat swings around the first swing arm and the second swing arm as the rotating axis.
3. The dispensing head structure with swing protection according to claim 2 is characterized in that: A first notch matched with the first swing arm and a second notch matched with the second swing arm are respectively provided on both sides of the end of the turntable. The first swing arm is arranged in the first notch, and the second swing arm is arranged in the second notch.
4. The dispensing head structure with swing protection according to claim 3 is characterized in that: A limit block is also provided on the other end of the needle seat, and a third notch is also provided at the end of the turntable corresponding to the limit block. The third notch and the limit block are used to limit the swing angle of the needle seat and the bent dispensing needle.
5. The dispensing head structure with swing protection according to claim 3 or 4, characterized in that: The end of the turntable is also provided with a return spring, one end of which is in elastic contact with the other end of the needle seat to apply an elastic return force to the needle seat.
6. The dispensing head structure with swing protection according to claim 5 is characterized in that: The end of the turntable is also provided with a spring groove, and the return spring is installed in the spring groove.
7. The dispensing head structure with swing protection according to claim 2 is characterized in that: Also includes: A first sealing ring, a glue outlet structure is also provided at the end of the turntable, a first sealing ring groove is provided on the glue outlet, and the first sealing ring is arranged in the first sealing ring groove to seal the gap between the turntable and the needle seat.
8. The dispensing head structure with swing protection according to claim 7 is characterized in that: Also includes: A second sealing ring, a second sealing ring groove is also provided at the needle seat and the bent dispensing needle, and the second sealing ring is arranged in the second sealing ring groove to seal the gap between the needle seat and the bent dispensing needle.
9. The dispensing head structure with swing protection according to claim 2, characterized in that: Also includes: A nut is used to fix the turntable and the needle seat.
10. The dispensing head structure with swing protection according to claim 2, characterized in that: Also includes: A needle clamping cap is used to fix the needle seat and the bent dispensing needle in a fixed connection.