Spray head clamping device

Abstract

The utility model discloses a nozzle clamping device, which relates to the technical field of tooling equipment, and particularly comprises a bottom plate, a plurality of groups of mounting holes and a plurality of nozzles, the first chuck base is fixedly connected with the bottom plate, and the connecting line between the assembling holes is not collinear with the mounting position of the first chuck base; the second chuck base is fixedly connected with any group of assembly holes; the at least two groups of chuck assemblies are fixedly mounted with the first chuck base and the second chuck base respectively; according to the nozzle clamping device, the two sets of chuck assemblies are arranged on the bottom plate, one set of chuck assembly is provided with a plurality of sets of installation positions, the installation positions can be flexibly changed according to production requirements, and therefore the problem that the spraying angle of a nozzle is difficult to adjust is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling equipment, and more specifically, to a nozzle clamping device. Background Art

[0002] In the tobacco leaf making production line, it is necessary to add flavor and additives to tobacco leaves and cut tobacco. This process is usually carried out in a flavoring machine (additive machine). During production, the tobacco materials tumble forward in the drum of the flavoring machine (additive machine). A dual-medium nozzle is installed at the front end inlet of the drum. The liquid material is sprayed out from the dual-medium nozzle driven by compressed air and falls on the tobacco materials.

[0003] During production and use, due to different requirements of the process for the spraying effect of the liquid material of the dual-medium nozzle, it is necessary to frequently adjust the angle of the dual-medium nozzle. At present, the dual-medium nozzle is fixed by a simple fixture, and the fixture is fixed to the frame by welding, making it difficult to quickly adjust the spraying angle of the dual-medium nozzle according to requirements.

[0004] In summary, how to provide a nozzle clamping device that can solve the inconvenience of adjusting the nozzle angle is an urgent problem for those skilled in the art at present. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a nozzle clamping device, which is provided with two groups of chuck assemblies on the bottom plate, and one of the chuck assemblies has several groups of installation positions, and can flexibly change the installation position according to production needs, so as to solve the problem of difficult adjustment of the spraying angle of the nozzle.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A nozzle clamping device, comprising:

[0008] A bottom plate, on the surface of which several groups of assembly holes are provided;

[0009] A first chuck base, which is fixedly connected to the bottom plate, and the connection lines between all the assembly holes are not collinear with the installation position of the first chuck base;

[0010] A second chuck base, which is fixedly connected to any one group of the assembly holes;

[0011] Chuck assemblies, there are at least two groups of them, and they are respectively fixedly installed on the first chuck base and the second chuck base.

[0012] Preferably, the assembly holes are arranged in a circular array with respect to the first chuck base.

[0013] Preferably, the chuck assembly includes a chuck support, a locking sleeve and two pairs of clamping pieces;

[0014] The hinge shafts of the two sets of clip pieces that are clamped against each other are fixedly arranged with the upper end of the chuck support, and a locking sleeve is arranged at the upper end of the chuck support through a threaded connection. The inner ring surface of the locking sleeve abuts against the outer wall of the clip piece. When the locking sleeve moves upward, it can drive the two sets of clip pieces to clamp.

[0015] The chuck support is fitted and installed with the first chuck base or the second chuck base.

[0016] Preferably, a wedge block is fixedly arranged on the outer wall of the clip piece, and the inner ring surface of the locking sleeve abuts against the wedge surface of the wedge block.

[0017] Preferably, a torsion spring is arranged between the two sets of clip pieces, and the inner wall of the clip piece is a spherical surface.

[0018] Preferably, the second chuck base is threadedly connected to the lower end of the chuck assembly;

[0019] An ear seat is fixedly arranged at the bottom of the second chuck base, and a through hole is arranged on the ear seat for assembling a connecting bolt connected to the bottom plate.

[0020] Preferably, the lower end of the chuck assembly is coaxially inserted into the first chuck base, and the two can rotate relative to each other along their own axes;

[0021] An axial limiting component is arranged between the chuck assembly and the first chuck base for restricting the axial relative movement between the chuck assembly and the first chuck base.

[0022] Preferably, a through locking hole is arranged radially on the outer peripheral wall of the first chuck base, and a locking screw is installed in the locking hole through a threaded fit. The end of the locking screw abuts against the outer peripheral wall of the chuck assembly to restrict the relative movement between the first chuck base and the chuck assembly.

[0023] Preferably, the first chuck base is a cylindrical sleeve structure, the chuck assembly is inserted into the first chuck base, and an annular groove is arranged on the outer peripheral wall of the inserted part of the chuck assembly. The end of the locking screw is clamped in the annular groove.

[0024] The nozzle clamping device provided by the present utility model has at least the following beneficial effects compared with the prior art:

[0025] 1. By arranging two sets of chuck assemblies to clamp the two ends of the nozzle respectively, the stability of nozzle clamping is ensured;

[0026] 2. A plurality of sets of assembly holes for assembling the second chuck base are arranged on the surface of the bottom plate, which is convenient for the second chuck base to change the assembly position, and further convenient for adjusting the spraying angle of the nozzle. Brief Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0028] Figure 1 It is a schematic structural diagram of a specific nozzle clamping device provided by the present invention;

[0029] Figure 2 It is a front view of a specific nozzle clamping device provided by the present invention;

[0030] Figure 3 Provided by the present invention Figure 2 It is a cross-sectional view taken along line A-A in the present invention;

[0031] Figure 4 Provided by the present invention Figure 2 It is a cross-sectional view taken along line B-B in the present invention.

[0032] Figures 1 - 4 In which:

[0033] 1. Bottom plate; 101. Assembly hole; 2. First chuck base; 201. Locking hole; 202. Locking screw; 3. Second chuck base; 4. Chuck assembly; 401. Chuck support; 402. Locking sleeve; 403. Clip; 404. Torsion spring; 405. Hinge shaft; 406. Wedge block; 407. Annular groove; 5. Nozzle. Detailed Embodiments

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] The core of the present invention is to provide a nozzle clamping device, which is provided with two groups of chuck assemblies on the bottom plate, and one of the groups of chuck assemblies has several installation positions, and the installation position can be flexibly changed according to production needs, so as to solve the problem of difficult adjustment of the nozzle spraying angle.

[0036] Please refer to Figures 1 - 4 , a nozzle clamping device, including:

[0037] The bottom plate 1 is provided with several groups of assembly holes 101 on its surface;

[0038] The first chuck base 2 is fixedly connected to the bottom plate 1, and the connection lines between all the assembly holes 101 are not collinear with the installation position of the first chuck base 2;

[0039] The second chuck base 3 is fixedly connected to any one group of assembly holes 101;

[0040] The chuck assembly 4 has at least two groups and is respectively fixedly installed on the first chuck base 2 and the second chuck base 3;

[0041] As Figure 1 shown, the first chuck base 2 is fixedly connected to the bottom plate 1, and the connection method is preferably welding or bolt connection. One group of the chuck assemblies 4 is fixed to the first chuck base 2 to clamp the front end of the nozzle 5;

[0042] In some embodiments, the first chuck base 2 is rotatably installed on the bottom plate 1, that is, the assembled first chuck base 2 can rotate along its own axis. That is, when the second chuck base 3 adjusts its installation position, the first chuck base 2 can automatically rotate to adapt to the adjustment of the spraying angle of the nozzle 5.

[0043] At the same time, several groups of assembly holes 101 are provided on the surface of the bottom plate 1, and the connection lines between the assembly holes 101 are not collinear with the installation position of the first chuck base 2. That is, by changing the assembly hole 101 on which the second chuck base 3 is installed, the spraying angle of the nozzle 5 can be adjusted.

[0044] In some embodiments, the assembly holes 101 are arranged in a linear array, and the connection lines of the assembly holes 101 are not collinear with the installation position of the first chuck base 2, so as to ensure that the spraying angle of the nozzle 5 can be changed after the second chuck base 3 changes the assembly hole 101 it is installed on.

[0045] In some embodiments, the installation method of the second chuck base 3 and the assembly hole 101 can be to directly insert the second chuck base 3 into the assembly hole 101, and the chuck assembly 4 in the second chuck base 3 clamps the tail end of the nozzle 5. In some other embodiments, the second chuck base 3 is connected and fixed to the assembly hole 101 by means of bolts.

[0046] In some embodiments, the assembly holes 101 are arranged in a circular array with respect to the first chuck base 2;

[0047] The assembly holes 101 are arranged in a circular array with the installation position of the first chuck base 2 as the center. Therefore, when the second chuck base 3 changes the assembly hole 101 it is installed on, the nozzle 5 can be adjusted to a fixed spraying angle, so it is convenient to control the spraying effect of the nozzle 5.

[0048] In some embodiments, the chuck assembly 4 includes a chuck support 401, a locking sleeve 402, and two sets of opposing clamping pieces 403;

[0049] The hinge axis 405 of the two sets of opposing clamping pieces 403 is fixedly arranged at the upper end of the chuck support 401, and the upper end of the chuck support 401 is provided with a locking sleeve 402 through a threaded connection. The inner ring surface of the locking sleeve 402 abuts against the outer wall of the clamping piece 403. When the locking sleeve 402 moves upward, it can drive the two sets of clamping pieces 403 to clamp;

[0050] The chuck support 401 is cooperatively installed with the first chuck base 2 or the second chuck base 3;

[0051] As Figure 3 or Figure 4 shown, the chuck assembly 4 adopts the method of combining two clamping pieces 403 with each other to effectively clamp the nozzle 5, and uses the locking sleeve 402 to lock after the clamping pieces 403 are clamped, ensuring the clamping force of the clamping pieces 403 on the nozzle 5 and preventing the nozzle 5 from falling off from the clamping pieces 403;

[0052] Among them, the locking sleeve 402 is connected to the chuck support 401 by a thread. Through the relative rotation of the two, the relative axial position of the two can also be adjusted, that is, the abutting position of the locking sleeve 402 and the outer wall of the clamping piece 403 is changed, so that the opening angle of the two sets of clamping pieces 403 changes, realizing the clamping and release of the clamping pieces 403 on the nozzle 5.

[0053] In some embodiments, a wedge block 406 is fixedly arranged on the outer wall of the clamping piece 403, and the inner ring surface of the locking sleeve 402 abuts against the wedge surface of the wedge block 406;

[0054] By arranging the wedge block 406 on the outer wall of the clamping piece 403, through the interaction between the wedge block 406 and the inner ring surface of the locking sleeve 402, that is, when the locking sleeve 402 moves upward, the abutting position of the inner ring surface of the locking sleeve 402 and the wedge surface of the wedge block 406 continuously changes, changing the opening and closing angles of the two sets of clamping pieces 403 and adjusting the clamping force of the clamping pieces 403 on the nozzle 5.

[0055] In some embodiments, a torsion spring 404 is arranged between the two sets of clamping pieces 403, and the inner wall of the clamping piece 403 is a spherical surface;

[0056] By arranging the torsion spring 404 between the two sets of clamping pieces 403, when the two sets of clamping pieces 403 are closed, the torsion spring 404 can be driven to store energy. When the clamping piece 403 loses the action of the locking sleeve 402, the clamping piece 403 can automatically open to release the nozzle 5, facilitating the disassembly of the nozzle 5;

[0057] At the same time, the inner wall of the clamping piece 403 is set as a spherical surface to facilitate clamping the nozzle 5.

[0058] In some embodiments, the second chuck base 3 is threadedly connected to the lower end of the chuck assembly 4;

[0059] The bottom of the second chuck base 3 is fixedly provided with an ear seat, and a through hole is provided on the ear seat for assembling a connecting bolt connected to the bottom plate 1;

[0060] As Figure 4 shown, an external thread is provided at the bottom end of the chuck support 401 of the chuck assembly 4, and an internal thread is provided on the second chuck base 3. The chuck support 401 and the second chuck base 3 are threadedly connected. By rotating the chuck support 401 simultaneously, the chuck support 401 can be axially displaced, that is, the height of the upper chuck 403 is adjusted, that is, the height of the tail end of the nozzle 5 is adjusted, so that there is a certain included angle between the nozzle 5 and the bottom plate 1, and the result is as Figure 2 shown;

[0061] Meanwhile, ear seats are respectively arranged on both sides of the second chuck base 3, and the ear seats are connected to the assembly holes 101 on the bottom plate 1 through connecting bolts, thereby ensuring the stable installation of the second chuck base 3.

[0062] In some embodiments, the lower end of the chuck assembly 4 is coaxially inserted into the first chuck base 2, and the two can rotate relative to each other along their own axes;

[0063] An axial limiting component is arranged between the chuck assembly 4 and the first chuck base 2 for restricting the axial relative movement between the chuck assembly 4 and the first chuck base 2;

[0064] As Figure 3 shown, the chuck support 401 of the chuck assembly 4 is rotatably connected to the first chuck base 2 in an inserted manner, that is, when the position of the second chuck base 3 is adjusted, the chuck assembly 4 in the first chuck base 2 can be driven to rotate through the nozzle 5;

[0065] By arranging a limiting component between the chuck support 401 of the chuck assembly 4 and the first chuck base 2, the chuck support 401 is prevented from disengaging from the first chuck base 2, ensuring the stable operation of the chuck assembly 4 in the first chuck base 2.

[0066] In some embodiments, a through locking hole 201 is provided along the radial direction on the outer peripheral wall of the first chuck base 2, and a locking screw 202 is installed in the locking hole 201 through threaded cooperation. The end of the locking screw 202 abuts against the outer peripheral wall of the chuck assembly 4 to restrict the relative movement between the first chuck base 2 and the chuck assembly 4;

[0067] As Figure 3As shown in the figure, by providing a radial locking hole 201 in the first chuck base 2 and installing a locking screw 202 in the locking hole 201 through threaded engagement, when the locking screw 202 is tightened, the end of the locking screw 202 can abut against the chuck support 401 of the chuck assembly 4, increasing the radial normal pressure between the chuck support 401 and the first chuck base 2, thereby increasing the frictional force of their axial movement and suppressing their axial movement, that is, playing the role of a limiting component.

[0068] In some embodiments, the first chuck base 2 is a cylindrical sleeve structure, the chuck assembly 4 is inserted into the first chuck base 2, and an annular groove 407 is provided on the outer peripheral wall of the inserted portion of the chuck assembly 4, and the end of the locking screw 202 is snapped into the annular groove 407;

[0069] As Figure 3 shown in the figure, an annular groove 407 is provided on the outer wall of the chuck support 401 of the chuck assembly 4, the end of the locking screw 202 is snapped into the annular groove 407, and the end of the locking screw 202 does not contact the bottom of the annular groove 407, enabling the locking screw 202 to slide within the annular groove 407, that is, the locking screw 202 can limit the relative axial movement between the chuck support 401 and the first chuck base 2, but does not limit the relative rotation between the chuck support 401 and the first chuck base 2.

[0070] The various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0071] The above has introduced in detail the nozzle clamping device provided by the present utility model. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A nozzle clamping device, characterized in that, Comprising: A bottom plate (1) with a plurality of groups of assembly holes (101) provided on its surface; A first chuck base (2) fixedly connected to the bottom plate (1), and the installation position of the first chuck base (2) is not collinear with the connection line of all the assembly holes (101); A second chuck base (3) fixedly connected to any one group of the assembly holes (101); Chuck assemblies (4), with at least two groups, and respectively fixedly installed on the first chuck base (2) and the second chuck base (3).

2. The nozzle clamping device according to claim 1, characterized in that, The assembly holes (101) are arranged in a circular array with respect to the first chuck base (2).

3. The nozzle clamping device according to claim 1, characterized in that, The chuck assembly (4) includes a chuck support (401), a locking sleeve (402), and two sets of clamping jaws (403) that are clamped against each other; The hinge shaft (405) of the two sets of clamping jaws (403) that are clamped against each other is fixedly arranged at the upper end of the chuck support (401), and a locking sleeve (402) is arranged at the upper end of the chuck support (401) through threaded connection. The inner ring surface of the locking sleeve (402) abuts against the outer wall of the clamping jaws (403). When the locking sleeve (402) moves upward, it can drive the two sets of clamping jaws (403) to clamp; The chuck support (401) is fitted and installed with the first chuck base (2) or the second chuck base (3).

4. The nozzle clamping device according to claim 3, characterized in that, A wedge block (406) is fixedly arranged on the outer wall of the clamping jaws (403), and the inner ring surface of the locking sleeve (402) abuts against the wedge surface of the wedge block (406).

5. The nozzle clamping device according to claim 3, characterized in that, A torsion spring (404) is arranged between the two sets of clamping jaws (403), and the inner wall of the clamping jaws (403) is a spherical surface.

6. The nozzle clamping device according to claim 1, characterized in that The second chuck base (3) is threadedly connected to the lower end of the chuck assembly (4); An ear seat is fixedly arranged at the bottom of the second chuck base (3), and a through hole is arranged on the ear seat for assembling a connecting bolt connected to the bottom plate (1).

7. The nozzle clamping device according to any one of claims 1-6, characterized in that, The lower end of the chuck assembly (4) is coaxially inserted into the first chuck base (2), and the two can rotate relative to each other along their own axes; An axial limiting component is arranged between the chuck assembly (4) and the first chuck base (2) for restricting the axial relative movement between the chuck assembly (4) and the first chuck base (2).

8. The nozzle clamping device according to claim 7, characterized in that, A through locking hole (201) is arranged radially on the outer peripheral wall of the first chuck base (2), and a locking screw (202) is installed in the locking hole (201) through threaded fit. The end of the locking screw (202) abuts against the outer peripheral wall of the chuck assembly (4) to restrict the relative movement between the first chuck base (2) and the chuck assembly (4).

9. The nozzle clamping device according to claim 8, characterized in that, The first chuck base (2) is of a cylindrical sleeve structure, the chuck assembly (4) is inserted into the first chuck base (2), and an annular groove (407) is arranged on the outer peripheral wall of the inserted part of the chuck assembly (4). The end of the locking screw (202) is clamped in the annular groove (407).

Images