Screw axial adjusting device of screw valve

Abstract

The utility model discloses a screw rod axial adjusting device of a screw rod valve, which comprises a main body assembly, a motor shell, a first butt joint shell, a second butt joint shell and a glue injection head, the adjusting assembly is arranged in the first butt joint shell and comprises a driving piece, a transmission piece, a push-pull piece, a guide piece, a connecting piece and a conductive piece; and the glue dispensing assembly is arranged in the glue injection head and comprises a glue outlet piece, a glue extruding piece and a glue inlet piece. The utility model has the beneficial effects that the position of the screw rod can be axially adjusted through the transmission part and the push-pull part, so that the adjusting process is simplified, the adjusting difficulty is reduced, and the adjusting efficiency and the adjusting precision are favorably improved; the displacement of the screw rod can be smoother through the guide piece, so that the stability of position adjustment of the screw rod is improved; and the driving piece and the connecting piece can drive the transmission piece, the push-pull piece, the guide piece and the screw rod to rotate together, so that glue liquid in the glue channel is extruded out of the glue outlet to execute glue dispensing work.

Description

TECHNICAL FIELD

[0001] The utility model relates to extruder accessory technology field especially a screw rod axial adjusting device of screw valve. BACKGROUND

[0002] Screw valve is a kind of precise glue dispensing equipment, it is mainly used in the glue dispensing process of medium-high viscosity fluid, it can realize high-precision glue dispensing operation by controlling the rotation time, air pressure and speed of screw rod, and the role of screw valve in single-screw extruder is particularly important, it can not only help to stabilize the output of material, but also prevent product quality problems caused by pressure fluctuation. The existing screw valve often needs staff to adjust the axial direction of screw according to the material properties of glue when using, the purpose is to ensure that the gap between screw and pump body is kept in the appropriate range, and the common screw axial adjustment mode needs to manually disassemble screw valve and then adjust, this adjustment mode is more cumbersome, and the adjustment efficiency and adjustment accuracy are low, which is not conducive to ensuring the stable operation and efficient work of screw valve. SUMMARY

[0003] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the above and / or existing problems in the axial adjustment device of screw rod of screw valve, the utility model is proposed.

[0005] Therefore, the problem to be solved by the utility model is that the prior art needs to manually disassemble screw valve and then adjust, this adjustment mode is more cumbersome, and the adjustment efficiency and adjustment accuracy are low, which is not conducive to ensuring the stable operation and efficient work of screw valve.

[0006] To solve the above technical problems, the utility model provides technical scheme as follows: Screw rod axial adjusting device of screw rod valve, it includes main part assembly, including motor shell, first butt joint shell, second butt joint shell and glue injection head, the glue injection head is installed in the second butt joint shell bottom, the second butt joint shell is installed in the first butt joint shell bottom, the first butt joint shell is installed in the motor shell bottom, adjusting assembly is arranged in the first butt joint shell inside, including drive part, transmission part, push -and -pull piece, guide piece, coupling piece and conductive part, the drive part is fixed in the motor shell inside, the transmission part is arranged in the first butt joint shell inside, the push -and -pull piece is arranged in the transmission part bottom, the guide piece is arranged in the push -and -pull piece outside, the coupling piece is arranged between the drive part and the transmission part, the conductive part is arranged in the coupling piece outside, point gum assembly is arranged in the glue injection head inside, including glue outlet, extrusion glue piece and glue inlet, the glue outlet is arranged in the glue injection head inside, the extrusion glue piece is arranged in the glue outlet inside, the glue inlet is arranged in the glue injection head one side.

[0007] As a preferred scheme of the screw rod axial adjusting device of the screw rod valve of the utility model, wherein: the drive part includes a servo motor and a junction box, the servo motor is installed in the motor shell inside, and the junction box is fixed on one side of the motor shell.

[0008] As a preferred scheme of the screw rod axial adjusting device of the screw rod valve of the utility model, wherein: the transmission part includes a first support cylinder, a second support cylinder, a micro motor, a ball screw and a rotating groove, the rotating groove is arranged in the first butt joint shell inside, the first support cylinder is rotatably connected to the inner wall of the rotating groove, the second support cylinder is fixed to the bottom of the first support cylinder, the micro motor is installed in the first support cylinder inside, and the ball screw is arranged in the second support cylinder inside.

[0009] As a preferred scheme of the screw rod axial adjusting device of the screw rod valve of the utility model, wherein: the push -and -pull piece includes a first limit disc, a second limit disc, a connecting plate and a strip-shaped rod, the first limit disc is arranged on the outer side of the ball screw, the second limit disc is arranged on the bottom of the second support cylinder, the connecting plate is fixed between the first limit disc and the second limit disc, and the strip-shaped rod is fixed to the bottom of the second limit disc.

[0010] As a preferred scheme of the screw rod axial adjusting device of the screw rod valve of the utility model, wherein: the guide piece includes a sliding block and a sliding groove, the sliding groove is arranged in the second support cylinder inside, the sliding block is fixed on the outer side of the connecting plate, and the sliding block is slidably connected to the inner wall of the sliding groove.

[0011] As a preferred scheme of the screw rod axial adjusting device of the screw valve, the coupling member comprises a first shaft coupling and a second shaft coupling, the first shaft coupling is installed at the bottom of the servo motor, and the second shaft coupling is fixed at the top of the first supporting cylinder.

[0012] As a preferred scheme of the screw rod axial adjusting device of the screw valve, the electrically conductive member comprises an electrically conductive slip ring, and the electrically conductive slip ring is installed at the bottom of the motor shell.

[0013] As a preferred scheme of the screw rod axial adjusting device of the screw valve, the glue discharging member comprises a glue channel and a glue discharging opening, the glue channel is arranged in the glue injection head, and the glue discharging opening is arranged at the bottom of the glue channel.

[0014] As a preferred scheme of the screw rod axial adjusting device of the screw valve, the glue extruding member comprises a screw rod, and the screw rod is fixed at the bottom of the strip-shaped rod.

[0015] As a preferred scheme of the screw rod axial adjusting device of the screw valve, the glue feeding member comprises a glue feeding opening, and the glue feeding opening is arranged on one side of the glue injection head.

[0016] The screw rod axial adjusting device of the screw valve has the following beneficial effects: the position of the screw rod can be axially adjusted through the transmission member and the push-pull member, so that the gap between the screw rod and the pump body is kept within a proper range, the adjustment process is simplified, the adjustment difficulty is reduced, the adjustment efficiency and the adjustment accuracy are improved, the displacement of the push-pull member and the screw rod is smoother through the guide member, the stability of the screw rod position adjustment is improved, the transmission member, the push-pull member, the guide member and the screw rod are driven to rotate together through the driving member and the coupling member, and the glue liquid in the glue channel is extruded out of the glue discharging opening to perform the dispensing work. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings. Wherein:

[0018] Figure 1 It is the overall structure diagram of the screw rod axial adjusting device of the screw valve.

[0019] Figure 2 It is the main component structure diagram of the screw rod axial adjusting device of the screw valve.

[0020] Figure 3It is a first butt joint shell internal structure diagram of a screw rod axial adjusting device of a screw valve.

[0021] Figure 4 It is a regulating assembly structure diagram of a screw rod axial adjusting device of a screw valve.

[0022] Figure 5 It is a dispensing assembly structure diagram of a screw rod axial adjusting device of a screw valve.

[0023] In the figure, 100 is a main body assembly, 101 is a motor shell, 102 is a first butt joint shell, 103 is a second butt joint shell, 104 is a glue injection head, 200 is a regulating assembly, 201 is a driving piece, 201a is a servo motor, 201b is a junction box, 202 is a transmission piece, 202a is a first supporting cylinder, 202b is a second supporting cylinder, 202c is a micro motor, 202d is a ball screw, 202e is a rotating groove, 203 is a push-pull piece, 203a is a first limiting disc, 203b is a second limiting disc, 203c is a connecting plate, 203d is a strip-shaped rod, 204 is a guiding piece, 204a is a sliding block, 204b is a sliding groove, 205 is a coupling piece, 205a is a first coupling shaft, 205b is a second coupling shaft, 206 is a conductive piece, 206a is a conductive slip ring, 300 is a dispensing assembly, 301 is a glue outlet piece, 301a is a glue passage, 301b is a glue outlet, 302 is a glue extruding piece, 302a is a screw rod, 303 is a glue inlet piece, and 303a is a glue inlet. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific details set forth herein, having regard to the content of the present application, and it can be apparent to those skilled in the art that the present application is not limited to the specific embodiments disclosed below.

[0026] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0027] Embodiment 1

[0028] Reference Figures 1-5For the first embodiment of the utility model, this embodiment provides a screw rod axial adjusting device of screw valve, screw rod axial adjusting device of screw valve includes main part assembly 100, adjusting assembly 200 and point gum assembly 300, by setting main part assembly 100, can provide the installation space of adaptation for other components, by setting adjusting assembly 200, can use machine instead of manual according to actual situation to carry out axial adjustment to the position of screw valve screw, such simplifies the adjustment process, reduces the adjustment difficulty, is favorable for improving the adjustment efficiency and adjustment accuracy, by setting point gum assembly 300, can extrude the glue solution from the inside of main part assembly 100 and carry out point gum operation.

[0029] Main part assembly 100, including motor housing 101, first docking shell 102, second docking shell 103 and glue injection head 104, glue injection head 104 is installed at the bottom of second docking shell 103, second docking shell 103 is installed at the bottom of first docking shell 102, and first docking shell 102 is installed at the bottom of motor housing 101.

[0030] The outer side of motor housing 101, the outer side of first docking shell 102, the outer side of second docking shell 103 and the outer side of glue injection head 104 are provided with a quadrilateral designed connecting part. In actual use, adjacent connecting parts can be assembled by bolts and other fasteners. This facilitates the disassembly and assembly of the main part assembly 100, and facilitates the maintenance and repair of the internal components of the main part assembly 100.

[0031] Adjusting assembly 200 is arranged inside first docking shell 102 and includes driving member 201, transmission member 202, push-pull member 203, guide member 204, coupling member 205 and conductive member 206. Driving member 201 is fixed inside motor housing 101. Transmission member 202 is arranged inside first docking shell 102. Push-pull member 203 is arranged at the bottom of transmission member 202. Guide member 204 is arranged outside push-pull member 203. Coupling member 205 is arranged between driving member 201 and transmission member 202. Conductive member 206 is arranged outside coupling member 205.

[0032] Push-pull member 203 can cooperate with transmission member 202 to axially adjust the position of the screw rod of the screw valve. In this process, guide member 204 can make the displacement of push-pull member 203 and the screw rod of the screw valve more smooth and stable. Coupling member 205 is used to connect driving member 201 and transmission member 202. When driving member 201 and transmission member 202 are connected, driving member 201 can drive transmission member 202, push-pull member 203, guide member 204 and the screw rod of the screw valve to rotate together, thus performing the point gum operation. In this process, the arrangement of conductive member 206 can prevent the wire connected to transmission member 202 from being twisted off due to excessive rotation.

[0033] The dispensing assembly 300 is arranged inside the glue injection head 104 and comprises a glue outlet 301, a glue extruding part 302 and a glue inlet 303.

[0034] The external glue liquid can be input into the glue injection head 104 through the glue inlet 303, and the glue extruding part 302 can be used to accurately control the glue liquid to flow out of the glue injection head 104 through the glue outlet 301, so that high-precision dispensing operation is realized.

[0035] Embodiment 2

[0036] Referring to Figures 2-5 As a second embodiment of the present application, the embodiment is based on the previous embodiment.

[0037] Specifically, the driving part 201 comprises a servo motor 201a and a junction box 201b, the servo motor 201a is installed inside the motor housing 101, and the junction box 201b is fixed to one side of the motor housing 101.

[0038] The servo motor 201a can provide rotary force for the screw valve screw part, so as to facilitate the execution of dispensing work, and the junction box 201b can facilitate the connection of the servo motor 201a and the external power supply, and also prevent the exposure of the wire from affecting the appearance and safety.

[0039] Specifically, the transmission part 202 comprises a first support cylinder 202a, a second support cylinder 202b, a micro motor 202c, a ball screw 202d and a rotating groove 202e, the rotating groove 202e is arranged inside the first butt shell 102, the first support cylinder 202a is rotatably connected to the inner wall of the rotating groove 202e, the second support cylinder 202b is fixed to the bottom of the first support cylinder 202a, the micro motor 202c is installed inside the first support cylinder 202a, and the ball screw 202d is arranged inside the second support cylinder 202b.

[0040] The ball screw 202d inside the second support cylinder 202b is connected to the output end of the micro motor 202c, and the first support cylinder 202a and the second support cylinder 202b are of an integrated structure, which can be rotated in the rotating groove 202e under the driving of the driving part 201, so as to rotate the screw valve screw part to execute dispensing work.

[0041] Specifically, the push-pull piece 203 comprises a first limiting disc 203a, a second limiting disc 203b, a connecting plate 203c and a strip-shaped rod 203d, the first limiting disc 203a is arranged outside the ball screw 202d, the second limiting disc 203b is arranged at the bottom of the second supporting cylinder 202b, the connecting plate 203c is fixed between the first limiting disc 203a and the second limiting disc 203b, and the strip-shaped rod 203d is fixed at the bottom of the second limiting disc 203b.

[0042] It should be noted that the first limiting disc 203a is coaxially arranged with the ball screw 202d, a nut matched with the ball screw 202d is installed at the center of the first limiting disc 203a, when it is necessary to axially adjust the position of the screw valve screw part, the micro motor 202c drives the ball screw 202d to rotate, the ball screw 202d drives the first limiting disc 203a, the connecting plate 203c, the second limiting disc 203b and the strip-shaped rod 203d to reciprocate along the axis direction of the ball screw 202d through the nut, thereby adjusting the screw valve screw part to different positions, so that the gap between the screw valve screw part and the pump body is kept within a suitable range, which simplifies the adjustment process, reduces the adjustment difficulty, and is beneficial to improve the adjustment efficiency and accuracy.

[0043] Specifically, the guide piece 204 comprises a sliding block 204a and a sliding groove 204b, the sliding groove 204b is arranged inside the second supporting cylinder 202b, and the sliding block 204a is fixed outside the connecting plate 203c and slidingly connected to the inner wall of the sliding groove 204b.

[0044] The arrangement of the sliding block 204a and the sliding groove 204b can make the displacement of the push-pull piece 203 and the screw valve screw more smooth, thereby improving the stability of the position adjustment of the screw valve screw part.

[0045] Specifically, the coupling piece 205 comprises a first coupling 205a and a second coupling 205b, the first coupling 205a is installed at the bottom of the servo motor 201a, and the second coupling 205b is fixed at the top of the first supporting cylinder 202a.

[0046] The first coupling 205a is installed at the output end of the bottom of the servo motor 201a, the second coupling 205b is installed at the top of the first supporting cylinder 202a, when the output end of the servo motor 201a rotates, it drives the transmission piece 202, the push-pull piece 203, the guide piece 204 and the screw valve screw to rotate together to perform the dispensing operation.

[0047] Specifically, the conductive piece 206 comprises a conductive slip ring 206a, and the conductive slip ring 206a is installed at the bottom of the motor housing 101.

[0048] It needs to be explained that the conductive slip ring 206a outer stator is fixedly installed at the bottom of the motor shell 101, the conductive slip ring 206a inner rotor is connected with the servo motor 201a output end, when the servo motor 201a output end drives the transmission member 202 to rotate as a whole, the conductive wire connected with the micro motor 202c will rotate with the conductive slip ring 206a inner rotor and the servo motor 201a output end, while the conductive slip ring 206a outer stator remains stationary and is connected with the external power supply through the conductive wire to supply power for the micro motor 202c, so that the conductive wire can be prevented from being twisted off due to excessive rotation and affecting the axial adjustment of the screw valve screw.

[0049] Embodiment 3

[0050] Referring to Figures 1-5 For the third embodiment of the utility model, the embodiment is based on the previous two embodiments.

[0051] Specifically, the glue outlet 301 includes a glue channel 301a and a glue outlet 301b, the glue channel 301a is arranged inside the glue injection head 104, and the glue outlet 301b is arranged at the bottom of the glue channel 301a.

[0052] The glue liquid for dispensing operation is stored inside the glue channel 301a, and the glue liquid will fall on the workpiece through the narrow glue outlet 301b at the bottom of the glue injection head 104.

[0053] Specifically, the glue extruding member 302 includes a screw rod 302a, and the screw rod 302a is fixed to the bottom of the strip-shaped rod 203d.

[0054] The screw rod 302a can extrude the glue liquid inside the glue channel 301a from the glue outlet 301b under the driving of the driving member 201, so as to perform dispensing work.

[0055] Specifically, the glue inlet member 303 includes a glue inlet 303a, and the glue inlet 303a is arranged on one side of the glue injection head 104.

[0056] The glue inlet 303a can be connected with the external glue supply channel through a pipeline, so as to provide glue liquid for the glue injection head 104 and ensure the continuous dispensing work.

[0057] In use, first, the staff can adjust the position of the screw rod 302a in the axial direction through the transmission member 202 and the push-pull member 203, so that the gap between the screw rod 302a and the pump body is kept within a suitable range, which simplifies the adjustment process, reduces the adjustment difficulty, and is conducive to improving the adjustment efficiency and the adjustment accuracy. In this process, the displacement of the push-pull member 203 and the screw rod 302a is smoother through the guide member 204, so that the stability of the position adjustment of the screw rod 302a is improved. After the position adjustment of the screw rod 302a is completed, the transmission member 202, the push-pull member 203, the guide member 204 and the screw rod 302a are driven to rotate together through the driving member 201 and the connecting member 205, so that the glue liquid inside the glue channel 301a is extruded from the glue outlet 301b to perform the dispensing work.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application. They should be covered in the scope of the claims of the present application.

Claims

1. A screw axial adjustment device for a screw valve, characterized in that: include, The main component (100) includes a motor housing (101), a first docking shell (102), a second docking shell (103), and a glue injection head (104). The glue injection head (104) is installed at the bottom of the second docking shell (103), the second docking shell (103) is installed at the bottom of the first docking shell (102), and the first docking shell (102) is installed at the bottom of the motor housing (101). An adjustment component (200) is disposed inside the first docking shell (102) and includes a driving component (201), a transmission component (202), a push-pull component (203), a guide component (204), a connecting component (205), and a conductive component (206). The driving component (201) is fixed inside the motor housing (101), the transmission component (202) is disposed inside the first docking shell (102), the push-pull component (203) is disposed at the bottom of the transmission component (202), the guide component (204) is disposed outside the push-pull component (203), the connecting component (205) is disposed between the driving component (201) and the transmission component (202), and the conductive component (206) is disposed outside the connecting component (205). A dispensing assembly (300) is disposed inside the dispensing head (104) and includes a dispensing component (301), an extrusion component (302), and an injection component (303). The dispensing component (301) is disposed inside the dispensing head (104), the extrusion component (302) is disposed inside the dispensing component (301), and the injection component (303) is disposed on one side of the dispensing head (104).

2. The screw axial adjustment device for the screw valve as described in claim 1, characterized in that: The drive unit (201) includes a servo motor (201a) and a junction box (201b). The servo motor (201a) is installed inside the motor housing (101), and the junction box (201b) is fixed to one side of the motor housing (101).

3. The screw axial adjustment device for the screw valve as described in claim 2, characterized in that: The transmission component (202) includes a first support cylinder (202a), a second support cylinder (202b), a micro motor (202c), a ball screw (202d), and a rotating groove (202e). The rotating groove (202e) is disposed inside the first docking shell (102). The first support cylinder (202a) is rotatably connected to the inner wall of the rotating groove (202e). The second support cylinder (202b) is fixed to the bottom of the first support cylinder (202a). The micro motor (202c) is installed inside the first support cylinder (202a). The ball screw (202d) is disposed inside the second support cylinder (202b).

4. The screw axial adjustment device for the screw valve as described in claim 3, characterized in that: The push-pull component (203) includes a first limiting plate (203a), a second limiting plate (203b), a connecting plate (203c), and a strip rod (203d). The first limiting plate (203a) is disposed on the outside of the ball screw (202d), the second limiting plate (203b) is disposed at the bottom of the second support cylinder (202b), the connecting plate (203c) is fixed between the first limiting plate (203a) and the second limiting plate (203b), and the strip rod (203d) is fixed at the bottom of the second limiting plate (203b).

5. The screw axial adjustment device for the screw valve as described in claim 4, characterized in that: The guide (204) includes a slider (204a) and a groove (204b). The groove (204b) is disposed inside the second support cylinder (202b). The slider (204a) is fixed to the outside of the connecting plate (203c). The slider (204a) is slidably connected to the inner wall of the groove (204b).

6. The screw axial adjustment device for the screw valve as described in claim 5, characterized in that: The connecting component (205) includes a first coupling (205a) and a second coupling (205b). The first coupling (205a) is installed at the bottom of the servo motor (201a), and the second coupling (205b) is fixed to the top of the first support cylinder (202a).

7. The screw axial adjustment device for the screw valve as described in claim 6, characterized in that: The conductive component (206) includes a conductive slip ring (206a), which is mounted on the bottom of the motor housing (101).

8. The screw axial adjustment device for the screw valve as described in claim 7, characterized in that: The dispensing component (301) includes an adhesive channel (301a) and an adhesive outlet (301b). The adhesive channel (301a) is located inside the dispensing head (104), and the adhesive outlet (301b) is located at the bottom of the adhesive channel (301a).

9. The screw axial adjustment device for the screw valve as described in claim 8, characterized in that: The extrusion part (302) includes a screw (302a) which is fixed to the bottom of the strip (203d).

10. The screw axial adjustment device for the screw valve as described in claim 9, characterized in that: The glue inlet (303) includes a glue inlet (303a), which is located on one side of the glue dispensing head (104).

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