Printer with anti-collision printing head

Abstract

The utility model discloses a printer with an anti-collision printing head, and the printer comprises the printing head which is provided with a nozzle, one side of the nozzle is provided with an anti-collision member, and the printing head is internally provided with a first sensor; the anti-collision piece is telescopically arranged on the printing head; the first sensor is used for sensing the telescopic state of the anti-collision piece, and when the anti-collision piece is in the retraction state, the printing head conducts printing work. During printing, after the printing head descends and the anti-collision piece abuts against the object, the anti-collision piece retracts till the anti-collision piece enters the sensing area of the first sensor, at the moment, the printing head stops descending, the horizontal plane is determined when the printing head works, and the printing head is started to conduct printing work. And after printing is completed, the printing head returns to the original position, and at the moment, when the anti-collision piece stretches out, the anti-collision piece leaves the sensing area of the first sensor. Therefore, the anti-collision piece is arranged, the printing head can be prevented from directly colliding with an object, and damage to the printing head is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a printer technical field, specifically related to a printer with anti -collision print head. BACKGROUND

[0002] In the traditional inkjet printing system, the movement and positioning of the print head are achieved through precise mechanical structure and control system. However, due to various reasons, including but not limited to the oil stain caused by the mixing of lubricating oil and dust, the print head position detection circuit failure, the environment temperature is too low, the foreign matter in the printer and the ink cartridge hatch not tightly covered, etc., the inkjet print head may collide when homing.

[0003] The collision not only may cause the physical damage of the inkjet head, such as nozzle blockage and print head structure deformation, but also may cause the ink leakage, pollute the internal components of the printer and further affect the printing quality. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a printer with anti -collision print head.

[0005] The utility model solves the technical scheme that the utility model adopts:

[0006] A printer with anti -collision print head, it includes: print head, be equipped with nozzle on the print head, one side of the nozzle is equipped with anti -collision piece, be equipped with first sensor in the print head;

[0007] The anti -collision piece is telescopically arranged on the print head;

[0008] The first sensor is used to sense the telescopic state of the anti -collision piece, when the anti -collision piece is in the retraction state, the print head carries out the printing work.

[0009] In an embodiment, the print head includes a shell, the shell is provided with a fixed support;The shell is provided with a through hole, the anti -collision piece passes through the through hole;Along the telescopic direction of the anti -collision piece, the first sensor is fixed on the fixed support, when the anti -collision piece retracts, the anti -collision piece enters the induction area of the first sensor, when the anti -collision piece extends, the anti -collision piece leaves the induction area of the first sensor.

[0010] In an embodiment, the fixed support includes a left support, a right support, a transverse support, and the first sensor is arranged on the top of the left support and the right support;

[0011] One end of the transverse support is connected to the left support, and the other end is connected to the right support;

[0012] The anti-collision piece is provided with a step structure and a limiting structure in the shell, the limiting structure is arranged adjacent to the through hole, and the limiting structure is used to prevent the anti-collision piece from falling off from the through hole.

[0013] The shell is provided with a spring, one end of the spring is abutted against the transverse support, and the other end of the spring is arranged on the step structure.

[0014] In an embodiment, a through slot is formed in the transverse support, and the anti-collision piece is always arranged through the through slot.

[0015] In an embodiment, the printer further comprises a transverse sliding rail and a print head lifting driving element.

[0016] The fixed end of the print head lifting driving element is slid on the transverse sliding rail.

[0017] The output end of the print head lifting driving element is in transmission connection with the print head.

[0018] The print head lifting driving element adjusts the height position of the print head to adapt to different height printing objects.

[0019] In an embodiment, the print head lifting driving element is in communication connection with the first sensor, when the anti-collision piece enters the sensing area of the first sensor, the print head lifting driving element stops driving the print head lifting or drives the print head to move reversely.

[0020] In an embodiment, upper pulleys and lower pulleys are mounted on the rear side of the print head lifting driving element, the transverse sliding rail further comprises upper grooves and lower grooves, the upper pulleys are slid in the upper grooves, and the lower pulleys are slid in the lower grooves.

[0021] In an embodiment, the number of the upper pulleys is more than two, and the number of the lower pulleys is more than two.

[0022] In an embodiment, the print head lifting driving element is provided with a lifting sensing element, the print head is provided with a lifting sensing matching element matched with the lifting sensing element, and the lifting sensing element is in communication connection with the lifting sensing matching element.

[0023] In an embodiment, the lifting sensing element is a second photoelectric sensor, and the lifting sensing matching element is a baffle.

[0024] The printer has the advantages that:

[0025] When printing, the print head is lowered, the anti-collision member abuts against the article, the anti-collision member is retracted until the anti-collision member enters the sensing area of the first sensor, at this time, the print head stops lowering, the horizontal plane during the operation of the print head is determined, the print head is started to perform the printing operation. After the printing is completed, the print head is returned to the original position, at this time, when the anti-collision member is extended, the anti-collision member leaves the sensing area of the first sensor.

[0026] Therefore, the anti-collision member is arranged, the direct collision between the print head and the article is prevented, and the damage of the print head is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] The utility model is further explained in connection with the drawings and examples.

[0028] Figure 1 is the front view of the printer in the embodiment;

[0029] Figure 2 is the side view of the printer in the embodiment;

[0030] Figure 3 is Figure 2 the structure enlarged view of A part in the figure;

[0031] Figure 4 is Figure 2 the structure enlarged view of B part in the figure;

[0032] The signs are as follows:

[0033] 1-print head; 11-lifting sensing matching member;

[0034] 2-nozzle;

[0035] 3-anti-collision member; 31-step structure; 32-limiting structure;

[0036] 4-housing; 401-through hole; 41-fixed support; 411-left support member; 412-right support member; 413-transverse support member; 414-through slot; 42-first sensor;

[0037] 5-transverse slide rail; 51-upper groove; 52-lower groove;

[0038] 6-print head lifting driving member; 61-rear upper pulley; 62-lower pulley; 63-lifting sensing member. DETAILED DESCRIPTION

[0039] The utility model discloses a concept, specific structure and the technical effect produced of the utility model will be clearly and completely described in the following combining with the embodiment and the drawing, to fully understand the purpose, features and effect of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, and not all embodiments, based on the embodiment of the utility model, other embodiments obtained by the person skilled in the art without paying creative labor all belong to the protection scope of the utility model. In addition, all the connection / connection relations involved in the patent do not mean that the components are directly connected, but can be composed of a better connection structure by adding or reducing the connection auxiliary parts according to the specific implementation situation. The various technical features in the utility model creation can be interactively combined without mutual contradiction and conflict.

[0040] Reference Figures 1 to 3 A printer with anti-collision print head, comprising: print head 1, which is provided with nozzle 2, one side of nozzle 2 is provided with anti-collision piece 3, and first sensor 42 is arranged in print head 1.

[0041] Anti-collision piece 3 is arranged on print head 1 in an extendable and retractable manner.

[0042] First sensor 42 is used to sense the extension and retraction state of anti-collision piece 3, and print head 1 performs printing operation when anti-collision piece 3 is in the retracted state.

[0043] The working principle of the printer is as follows: when printing, anti-collision piece 3 abuts against the object, and the object pushes anti-collision piece 3 to retract until anti-collision piece 3 enters the sensing area of first sensor 42, at this time, first sensor 42 makes print head stop descending, the horizontal plane of print head 1 during work is determined, print head 1 is started, and printing operation is performed. After printing is completed, print head 1 is returned to the original position, at this time, anti-collision piece 3 extends, and anti-collision piece 3 leaves the sensing area of first sensor 42. Therefore, the anti-collision piece can prevent the direct collision between the print head and the object and reduce the damage of the print head.

[0044] Specifically, first sensor 42 is an optical sensor.

[0045] In an embodiment, print head 1 comprises shell 4, fixed support 41 is arranged in shell 4, through hole 401 is arranged on shell 4, anti-collision piece 3 is arranged through through hole 401, first sensor 42 is fixed on fixed support 41 along the extension and retraction direction of anti-collision piece 3, anti-collision piece 3 enters the sensing area of first sensor 42 when anti-collision piece 3 retracts, and anti-collision piece 3 leaves the sensing area of first sensor 42 when anti-collision piece 3 extends.

[0046] It can be understood that the sensing port direction of the first sensor 42 is arranged in the telescopic direction of the anti-collision piece 3.

[0047] Referring to Figure 2 , Figure 3 In particular, the fixed support 41 comprises a left support 411, a right support 412, and a transverse support 413, and the first sensor 42 is arranged at the top of the left support 411 and the right support 412.

[0048] One end of the transverse support 413 is connected to the left support 411, and the other end is connected to the right support 412.

[0049] The anti-collision piece 3 is provided with a step structure 31 and a limiting structure 32 in the shell 4, the limiting structure 32 is arranged adjacent to the through hole 401, and the limiting structure 32 is used to prevent the anti-collision piece 3 from falling off from the through hole 401, and the step structure 31 is arranged adjacent to the limiting structure 32.

[0050] A spring (not shown in the figure) is arranged in the shell 4, one end of the spring abuts against the transverse support 413, and the other end is arranged on the step structure 31.

[0051] When printing, the article pushes the anti-collision piece 3 to retract, and the spring is pressed, at this time, the anti-collision piece 3 is in the sensing area of the first sensor 42, when the print head 1 is lifted, the spring relaxes, drives the anti-collision piece 3 to extend, and moves away from the printing area of the first sensor 42, in this way, the limiting structure 32 can stabilize the telescopic amount of the anti-collision piece 3, and also reduce the situation that the anti-collision piece 3 is jammed in the shell 4.

[0052] In particular, a through slot 414 is formed in the transverse support 413, and the anti-collision piece 3 is always arranged through the through slot 414.

[0053] The through slot 414 cooperates with the through hole 401, which can completely determine the movement direction of the anti-collision piece 3, and avoid the position deviation of one end of the anti-collision piece 3 in the shell 4, which causes the anti-collision piece 3 to fail.

[0054] More specifically, the length of the anti-collision piece 3 in the shell 4 is greater than the length of the transverse support 413 to the inner wall of the shell 4, so as to ensure that the anti-collision piece 3 will not be separated from the transverse support 413.

[0055] More specifically, it further comprises a transverse slide rail 5 and a print head lifting driving piece 6.

[0056] The fixed end of the print head lifting driving piece 6 slides on the transverse slide rail 5.

[0057] The output end of the print head lifting driving piece 6 is in transmission connection with the print head 1.

[0058] The print head lifting drive 6 adjusts the height position of the print head 1 to adapt to different heights of the printed objects.

[0059] More specifically, the print head lifting drive 6 is in communication connection with the first sensor 42, when the anti-collision member 3 enters the sensing area of the first sensor 42, the print head lifting drive 6 stops driving the print head 1 to lift or drive the print head 1 to move reversely.

[0060] Thus, the print head 1 is prevented from moving towards the printed object all the time, which causes damage to the print head 1.

[0061] Where to find Figure 2 , Figure 4 More specifically, the print head lifting drive 6 is provided with an upper pulley 61 and a lower pulley 62 at the rear side, the transverse sliding rail 5 further comprises an upper groove 51 and a lower groove 52, the upper pulley 61 is slidingly arranged in the upper groove 51, and the lower pulley 62 is slidingly arranged in the lower groove 52.

[0062] The upper pulley 61 and the lower pulley 62 clamp the transverse sliding rail 5, which can reduce the probability of the upper pulley 61 and the lower pulley 412 from the transverse sliding rail 5; when the printing assembly 4 is printing, the print head 1 is subjected to an upward thrust, at this time, the lower pulley 62 is prevented from being separated from the lower groove 52 due to the abutment between the lower pulley 62 and the inner wall of the lower groove 52, which further improves the stability of the print head 1 during movement and printing.

[0063] More specifically, the upper pulley 61 is two or more, and the lower pulley 62 is two or more. Thus, the support points of the print head 1 on the transverse sliding rail 5 are more, and the stability during movement and printing is stronger.

[0064] More specifically, the print head lifting drive 6 is provided with a lifting sensing member 63, the print head 1 is provided with a lifting sensing matching member 11 matched with the lifting sensing member 63, and the lifting sensing member 63 is in communication connection with the lifting sensing matching member 11.

[0065] When the print head lifting drive 6 drives the print head 1 to rise to a certain height, the lifting sensing member 63 senses the lifting sensing matching member 11, so as to send an identification signal to the print head lifting drive 6, and the print head lifting drive 6 stops driving the print head 1 to rise, thus avoiding excessive lifting of the print head 1, which causes collision with other components.

[0066] More specifically, the lifting sensing member 63 is a second photoelectric sensor, and the lifting sensing matching member 11 is a baffle.

[0067] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the described embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A printer with an anti-collision printhead, characterized in that, include: A printhead (1) is provided with a nozzle (2), and an anti-collision component (3) is provided on one side of the nozzle (2). A first sensor (42) is provided inside the printhead (1). The anti-collision component (3) is retractably mounted on the print head (1); The first sensor (42) is used to sense the extension and retraction state of the anti-collision member (3). When the anti-collision member (3) is in the retracted state, the print head (1) performs a printing operation.

2. The printer as described in claim 1, characterized in that: The printhead (1) includes a housing (4), in which a fixed bracket (41) is provided; the housing (4) has a through hole (401), through which the anti-collision member (3) is disposed; along the extension and retraction direction of the anti-collision member (3), the first sensor (42) is fixed on the fixed bracket (41); when the anti-collision member (3) retracts, the anti-collision member (3) enters the sensing area of ​​the first sensor (42); when the anti-collision member (3) extends, the anti-collision member (3) leaves the sensing area of ​​the first sensor (42).

3. The printer as described in claim 2, characterized in that: The fixed bracket (41) includes a left support member (411), a right support member (412), and a transverse support member (413), and the first sensor (42) is disposed on the top of the left support member (411) and the right support member (412); One end of the lateral support member (413) is connected to the left support member (411), and the other end is connected to the right support member (412); The anti-collision member (3) is provided with a step structure (31) and a limiting structure (32) located inside the outer shell (4). The limiting structure (32) is arranged adjacent to the through hole (401). The limiting structure (32) is used to prevent the anti-collision member (3) from falling out of the through hole (401). The step structure (31) and the limiting structure (32) are arranged adjacent to each other. The outer shell (4) is provided with a spring, one end of which abuts against the transverse support (413) and the other end is provided on the stepped structure (31).

4. The printer as described in claim 3, characterized in that: The transverse support member (413) has a through groove (414), and the anti-collision member (3) is always installed through the through groove (414).

5. The printer as described in any one of claims 2-4, characterized in that: It also includes a horizontal slide rail (5) and a printhead lifting drive (6); The fixed end of the printhead lifting drive (6) slides on the transverse slide rail (5); The output end of the printhead lifting drive (6) is connected to the printhead (1) in a transmission connection; The printhead lifting drive (6) adjusts the height position of the printhead (1) to accommodate printing items of different heights.

6. The printer as described in claim 5, characterized in that: The printhead lifting drive (6) is communicatively connected to the first sensor (42). When the anti-collision member (3) enters the sensing area of ​​the first sensor (42), the printhead lifting drive (6) stops driving the printhead (1) to lift or moves the printhead (1) in the opposite direction.

7. The printer as described in claim 5, characterized in that: The printhead lifting drive (6) is equipped with an upper pulley (61) and a lower pulley (62) on its rear side. The transverse slide rail (5) also includes an upper groove (51) and a lower groove (52). The upper pulley (61) is slidably disposed in the upper groove (51), and the lower pulley (62) is slidably disposed in the lower groove (52).

8. The printer as described in claim 7, characterized in that: There are two or more upper pulleys (61) and two or more lower pulleys (62).

9. The printer as described in claim 5, characterized in that: The printhead lifting drive (6) is provided with a lifting sensor (63), and the printhead (1) is provided with a lifting sensor matching component (11) that matches the lifting sensor (63); the lifting sensor (63) and the lifting sensor matching component (11) are communicatively connected.

10. The printer as described in claim 9, characterized in that: The lifting sensing component (63) is a second photoelectric sensor, and the lifting sensing matching component (11) is a baffle.

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