Nozzle anti-collision protection device for digital printing machine
By installing a print head anti-collision protection device on the digital printing machine and using rollers and distance sensors to monitor the distance between the print head and the substrate, the problem of print head collision caused by uneven substrates is solved, ensuring printing quality and print head safety.
Patent Information
- Application Number
- CN202422710811.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The print heads of digital printing machines are easily rubbed or collided with the unevenness of the substrate, resulting in reduced printing quality or even damage. Existing technologies have failed to effectively solve this problem.
A printhead anti-collision protection device is used, including a mounting plate, cantilever, distance sensor, roller and floating bracket. The roller rolls on the edge of the substrate for support, and the distance sensor is used to monitor the distance between the printhead and the substrate to ensure a safe distance and avoid collision.
Effectively avoid collision between printhead and substrate, ensure printing quality, reduce printhead damage, stop the machine in time to deal with abnormalities, and resume normal production.
Smart Images
Figure CN223432130U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to digital printing machine technical field especially relates to a nozzle anti -collision protection device for digital printing machine. BACKGROUND
[0002] Digital printing machine is applicable to the printing of pattern on the printing material such as fabric, paper and film, and is widely applicable.
[0003] The thickness of the printing material such as fabric, paper and film is different, and the distance between the nozzle of the digital printing machine and the printing material is relatively close, and according to the different material and printing requirement of the printing material, the distance is usually 2-5mm. Because part of the printing material cannot guarantee flatness, such as fabric wrinkling, paper stacking, film relaxation and other problems, the friction or impact of the nozzle and the printing material is easy to cause, which reduces the printing quality, and even causes the damage of the nozzle, which is serious loss, and needs to be improved. UTILITY MODEL CONTENT
[0004] The utility model discloses a nozzle anti -collision protection device for digital printing machine, and the distance between the nozzle and the printing material is detected, and the impact problem of the nozzle is avoided.
[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:
[0006] A nozzle anti -collision protection device for digital printing machine, including: mounting plate, cantilever, range sensor, gyro wheel and floating support, the mounting plate is provided with nozzle assembly, the cantilever is arranged on the mounting plate and extends horizontally to the front of nozzle assembly, the floating support is arranged below the cantilever, the floating support is vertically provided with the guide column that is penetrated to the cantilever upwards, the guide column is provided with the nut that is located above the cantilever, the elastic support between the floating support and the cantilever is provided, the gyro wheel is arranged in the floating support, the floating support top is provided with the reflector plate that extends horizontally to one side, the range sensor is arranged on the cantilever and is directed to the reflector plate below.
[0007] Wherein, the cantilever is symmetrically distributed on both sides of nozzle assembly.
[0008] Wherein, the elastic support adopts spring and is sleeved on the guide column.
[0009] Wherein, a section of external thread corresponding to the nut is arranged on the guide column, and a guide hole corresponding to the guide column is arranged on the cantilever.
[0010] Wherein, the number of guide columns on the floating support is 2.
[0011] Wherein, the range sensor adopts laser range sensor.
[0012] The beneficial effects of the utility model are as follows: a nozzle anti-collision protection device for a digital printing machine, wherein the rollers are located on both sides of the path in front of the nozzle assembly, and the height of the floating bracket is supported by the rolling of the rollers on the edge of the substrate. The thickness change of the substrate is reflected by the height floating change of the floating bracket, and the height floating change of the reflector and the floating bracket is monitored by using a distance measuring sensor, which indirectly reflects the distance between the nozzle assembly and the substrate. When the height distance between the nozzle assembly and the substrate is about to fail to meet the safety requirements, the digital printing machine is shut down according to the signal to avoid the collision problem between the nozzle assembly and the substrate, which is conducive to the staff to deal with the abnormality in time and resume normal production. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of the present utility model. DETAILED DESCRIPTION
[0014] The following combination Figure 1 The technical solution of the present utility model is further illustrated by specific embodiments.
[0015] like Figure 1 The nozzle anti-collision protection device for a digital printing machine shown includes: a mounting plate 1, a cantilever 4, a distance sensor 7, a roller 11 and a floating bracket 9. The nozzle assembly 2 is provided on the mounting plate 1 to print the substrate 3 below.
[0016] The cantilever 4 is mounted on the mounting plate 1 and extends horizontally in front of the printhead assembly 2. The cantilever 4 can be fixed to the mounting plate 1 with screws, providing a stable structure. In this embodiment, the cantilever 4 is symmetrically distributed on both sides of the printhead assembly 2, facilitating simultaneous detection of both edges of the substrate 3 and better reflecting thickness variations of the substrate 3.
[0017] The floating bracket 9 is positioned below the cantilever 4. A guide post 6 is vertically mounted on the floating bracket 9 and extends upward through the cantilever 4. A nut 5 is mounted on the guide post 6, located above the cantilever 4, to limit the downward movement of the guide post 6. In this embodiment, the guide post 6 is provided with an external thread corresponding to the nut 5, facilitating rotation of the nut 5 and axial adjustment of the guide post 6 to accommodate substrates 3 of varying thicknesses.
[0018] like Figure 1 As shown, there are two guide posts 6 on the floating support 9 to prevent the floating support 9 from twisting and improve stability. The cantilever 4 is provided with guide holes corresponding to the guide posts 6 to guide the lifting of the guide posts 6 and the floating support 9.
[0019] An elastic support member 10 is provided between the floating support 9 and the cantilever 4 to elastically support the floating support 9 downward. In this embodiment, the elastic support member 10 is a spring and is sleeved on the guide column 6, which is easy to assemble.
[0020] The roller 11 is arranged in the floating support 9, as shown in FIG. Figure 1 As shown, the rollers 11 are located on both sides of the path in front of the nozzle assembly 2. The height of the floating bracket 9 is supported by the rolling of the rollers 11 on the edge of the substrate 3. The height change of the position of the floating bracket 9 indirectly reflects the height distance between the nozzle assembly 2 and the substrate 3.
[0021] In this embodiment, the distance sensor 7 uses a laser distance sensor with high measurement accuracy. The distance sensor 7 is connected to the digital printing machine controller to transmit signals. A reflector 8 extending horizontally to one side is installed on the top of the floating support 9. The distance sensor 7 is installed on the cantilever 4 and points downward at the reflector 8 to monitor the height changes of the floating support 9.
[0022] Since the materials of the printing substrate 3 are different, the laser distance sensor cannot be perfectly applied to all materials of the printing substrate 3. Therefore, the distance sensor 7 cooperates with the reflector 8 to ensure the accuracy of the measurement structure and indirectly reflect the change in the distance between the nozzle assembly 2 and the printing substrate 3. When the height distance between the nozzle assembly 2 and the printing substrate 3 is about to fail to meet the safety requirements, the digital printing machine will stop according to the signal to avoid friction or collision between the nozzle assembly 2 and the printing substrate 3, which is conducive to the staff to deal with the abnormality of the printing substrate 3 in time and resume normal production.
[0023] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.
Claims
1. A nozzle anti-collision protection device for a digital printing machine, characterized in that: include: A mounting plate, a cantilever, a ranging sensor, a roller and a floating bracket, wherein a nozzle assembly is arranged on the mounting plate, the cantilever is arranged on the mounting plate and extends horizontally in front of the nozzle assembly, the floating bracket is arranged below the cantilever, a guide column is vertically arranged on the floating bracket and passes through the cantilever upward, a nut located above the cantilever is arranged on the guide column, an elastic support member is arranged between the floating bracket and the cantilever, the roller is arranged in the floating bracket, a reflector extending horizontally to one side is arranged on the top of the floating bracket, and the ranging sensor is arranged on the cantilever and points to the reflector downward.
2. The nozzle anti-collision protection device for a digital printing machine according to claim 1, characterized in that: The cantilevers are symmetrically distributed on both sides of the nozzle assembly.
3. The nozzle anti-collision protection device for a digital printing machine according to claim 1, characterized in that: The elastic supporting member adopts a spring and is sleeved on the guide column.
4. The nozzle anti-collision protection device for a digital printing machine according to claim 1, characterized in that: The guide post is provided with an external thread corresponding to the nut, and the cantilever is provided with a guide hole corresponding to the guide post.
5. The nozzle anti-collision protection device for a digital printing machine according to claim 1, characterized in that: The number of guide pillars on the floating bracket is 2.
6. The nozzle anti-collision protection device for a digital printing machine according to claim 1, characterized in that: The distance measuring sensor adopts a laser distance measuring sensor.