Ink scraping device of screen printing machine

Abstract

An ink scraping device of a screen printing machine comprises an adjusting device, an air cylinder body, an upper transverse rod, a longitudinal guide rod, a bottom scraper clamp, a left piston, a left piston rod, a right piston, a right piston rod and a stroke adjusting piece, the adjusting device is connected with the air cylinder body, the longitudinal guide rod is in sliding fit with a longitudinal guide hole, and the upper transverse rod and the bottom scraper clamp are fixed to the upper end and the lower end of the longitudinal guide rod respectively. The left piston is arranged in the left piston cavity, the left piston rod and the left piston rod hole are in sliding fit and sealed, the right piston is arranged in the right piston cavity, the right piston rod and the right piston rod hole are in sliding fit and sealed, the left piston rod and the right piston rod are matched with the upper cross rod, and the lower ends of the left piston rod and the right piston rod are fixed to the bottom scraper clamp. The stroke adjusting piece is arranged on the upper cross rod and is matched with the adjusting device for limiting; during working, the left piston rod and the right piston rod alternately retract and stretch out. The air cylinder body is provided with the left piston cavity and the right piston cavity, the two air cylinders are integrated, the stroke adjusting piece is arranged on the air cylinder body and matched with the adjusting device, and the stroke adjusting universality is high.

Description

Technical Field

[0001] The present invention belongs to the field of mechanical technology, and relates to an ink scraping device, in particular to an ink scraping device in an automatic circular screen printing machine. Background Art

[0002] In the current prior art, Chinese Patent No. 200810062102.0, an ink scraping device in an automatic circular screen printing machine, belongs to the field of mechanical technology. It solves the problem that in the existing ink scraping device in an automatic circular screen printing machine, the ink needs to be replaced after drying, resulting in a large waste of ink and high costs. The ink scraping device in this automatic circular screen printing machine includes a screen printing plate that can move horizontally back and forth on a machine base. Two sets of scraper assemblies are provided vertically above the middle of the screen printing plate. The lower end of each scraper assembly has a sheet-shaped scraper, and the two scrapers are arranged parallel to each other; two cylinders are provided on the machine base, and each cylinder is provided with an electromagnetic valve for controlling its up and down movement. The electromagnetic valve is connected to a control circuit. When the scraper assembly moves downward driven by the corresponding cylinder, the scraper at its lower end can be pressed on the screen printing plate. The problem is that the two cylinders are separately provided and the stroke cannot be adjusted. Summary of the Invention

[0003] The object of the present invention is to provide an ink scraping device for a screen printing machine, which has the characteristics of integrating cylinders and being able to adjust the stroke.

[0004] The present invention is realized as follows: An ink scraping device for a screen printing machine, characterized in that it includes an adjusting device, a cylinder body, an upper cross bar, a longitudinal guide rod, a bottom scraper clamp, a left piston and a left piston rod, a right piston and a right piston rod, and a stroke adjusting member.

[0005] The cylinder body includes four longitudinal guide holes, a left piston chamber and a right piston chamber. The top and bottom of the left piston chamber and the right piston chamber are provided with left piston rod holes and right piston rod holes.

[0006] The adjusting device is provided above the cylinder body and connected to the cylinder body. The longitudinal guide rod is slidably matched with the longitudinal guide hole. An upper cross bar and a bottom scraper clamp are respectively fixed to the upper and lower ends of the two longitudinal guide rods on the left side, and another upper cross bar and a bottom scraper clamp are fixed to the upper and lower ends of the two longitudinal guide rods on the right side; the left piston is arranged in the left piston chamber, and the left piston rod is slidably matched and sealed with the left piston rod hole. The right piston is arranged in the right piston chamber, and the right piston rod is slidably matched and sealed with the right piston rod hole. The upper ends of the left piston rod and the right piston rod are respectively matched with the upper cross bar, and the lower ends are fixed to the bottom scraper clamp. The stroke adjusting member is arranged on the upper cross bar and cooperates with the adjusting device for limiting; during operation, the left piston rod and the right piston rod alternately retract and extend.

[0007] Preferably: The stroke adjusting member is a bolt.

[0008] A screw hole is provided in the middle of the upper cross bar;

[0009] The screw rod of the bolt is screwed into the screw hole, and the head is engaged with the adjusting device for limit.

[0010] Preferably: The head of the bolt is cylindrical and provided with an inner hexagonal tool hole with an upper opening.

[0011] Preferably: The head of the bolt is regular hexagonal.

[0012] Preferably: The adjusting device includes an impression head seat body, a longitudinal screw, a nut, a snap ring or a lower nut, a front-back frame rod, a transverse baffle, a locking screw and a limiting rod,

[0013] The impression head seat body is provided with a left horizontal rod hole, a left clearance groove with a lower opening, a left fastening hole, a right horizontal rod hole, a right clearance groove with a lower opening, a right fastening hole, a middle longitudinal rod hole and a limiting rod hole;

[0014] The transverse baffle is fixed to the front end of the front-back frame rod. The front-back frame rod is engaged with the left horizontal rod hole and the right horizontal rod hole. The locking screw is screwed into the left fastening hole to fix the front-back frame rod in the left horizontal rod hole. The locking screw is screwed into the right fastening hole to fix the front-back frame rod in the right horizontal rod hole. The limiting rod is fixed to the cylinder body and is in sliding fit with the limiting rod hole. The lower end of the longitudinal screw is fixed to the cylinder body, and the upper part passes through the middle longitudinal rod hole and is screwed with the nut. The snap ring or the lower nut is engaged with the longitudinal screw at the lower part of the impression head seat body.

[0015] Preferably: A seat body in the front-back direction is provided at the top of the cylinder body, and the lower ends of the longitudinal screw and the limiting rod are fixed to the seat body.

[0016] Preferably: The impression head seat body is engaged with the stroke adjusting member.

[0017] Preferably: The transverse baffle and the front-back frame rod are fixed by screws.

[0018] In a silk screen printing ink scraping device of the present invention, the cylinder body is provided with a left piston chamber and a right piston chamber, two cylinders are integrated into one, and the stroke adjusting member is arranged on the cylinder body and is engaged with the adjusting device, so as to realize strong universality in adjusting the stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a sectional view of the present invention.

[0020] Figure 2 is one of the exploded perspective views of the present invention.

[0021] Figure 3 is the second exploded perspective view of the present invention.

[0022] Figure 4 is a perspective view of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] As Figure 1 、 Figure 2 shown, a silk screen printing squeegee device includes an adjusting device 1, a cylinder body 2, an upper cross bar 31, longitudinal guide rods 32, a bottom squeegee clamp 33, a left piston 4 and a left piston rod 41, a right piston 5 and a right piston rod 51, and a stroke adjusting member 6.

[0027] The cylinder body 2 includes four longitudinal guide holes (shown by marks) provided at the corners, a left piston chamber 21 and a right piston chamber 22. The top and bottom of the left piston chamber 21 and the right piston chamber 22 are provided with left piston rod holes and right piston rod holes; the left piston chamber 21 and the right piston chamber 22 are respectively provided with two air inlet and outlet holes. When in use, the upper air inlet and outlet hole of the left piston chamber 21 is the air inlet hole, and the lower air inlet and outlet hole is the air outlet hole. When converted, the upper exhaust hole becomes the exhaust hole, and the lower air inlet and outlet hole becomes the air inlet hole; reciprocally converted.

[0028] The adjusting device 1 is arranged above the cylinder main body 2 and connected to the cylinder main body 2. The longitudinal guide rod 32 is in sliding fit with the longitudinal guide hole. An upper cross bar 31 and a bottom scraper clamp 33 are respectively fixed to the upper and lower ends of the two longitudinal guide rods 32 on the left side. Another upper cross bar 31 and a bottom scraper clamp 33 are respectively fixed to the upper and lower ends of the two longitudinal guide rods 32 on the right side. The left piston 4 is arranged in the left piston chamber 21, and the left piston rod 41 is in sliding fit and sealed with the left piston rod hole. The right piston 5 is arranged in the right piston chamber 22, and the right piston rod 51 is in sliding fit and sealed with the right piston rod hole. The upper ends of the left piston rod 41 and the right piston rod 51 are respectively matched with the upper cross bar 31, and the lower ends are respectively fixed to the bottom scraper clamp 33. The stroke adjusting member 6 is arranged on the upper cross bar 31 and cooperates with the adjusting device 1 for limiting. During operation, the left piston rod 41 and the right piston rod 51 alternately retract and extend. The setting of the stroke adjusting member 6 can adjust the upward moving distance of the cylinder main body 2.

[0029] As a further improvement of the present invention: the stroke adjusting member 6 is a bolt.

[0030] A screw hole is provided in the middle of the upper cross bar 31.

[0031] The screw rod of the bolt is screwed with the screw hole, and the head is matched with the adjusting device 1 for limiting.

[0032] As a further improvement of the present invention: the head of the bolt is cylindrical and provided with an inner hexagonal tool hole with an upper opening.

[0033] The present invention can also be realized in this way: the head of the bolt is regular hexagonal.

[0034] The adjusting device 1 includes a printing head seat body 11, a longitudinal screw 12, a nut 13, a circlip 14 or a lower nut, a front-back support rod 15, a transverse baffle 16, a locking screw 18 and a limiting rod 17.

[0035] The printing head seat body 11 is provided with a left horizontal rod hole 111, a left clearance groove 112 with a lower opening, a left fastening hole 113, a right horizontal rod hole 114, a right clearance groove 115 with a lower opening, a right fastening hole 116, a middle longitudinal rod hole 117 and a limiting rod hole 118.

[0036] The cross baffle 16 is fixed to the front end of the front and rear frame rods 15. The front and rear frame rods 15 are engaged with the left horizontal rod hole 111 and the right horizontal rod hole 114. The locking screw 18 is screwed with the left fastening hole 113 to fix the front and rear frame rods 15 in the left horizontal rod hole, and the locking screw 18 is screwed with the right fastening hole 116 to fix the front and rear frame rods 15 in the right horizontal rod hole. The lower end of the limiting rod 17 is fixed to the cylinder body 2 and is in sliding fit with the limiting rod hole 118. The lower end of the longitudinal screw 12 is fixed to the cylinder body 2, and the upper part passes through the middle longitudinal rod hole 116 and is screwed with the nut 13. A snap ring or a lower nut is engaged with the longitudinal screw 12 at the lower part of the printing head seat body 11. When in use, the rear end of the front and rear frame rods 15 is fixed to the front end of the moving device of the screen printing machine. Operate the locking screw 18 to adjust the distance of the printing head seat body 11 relative to the moving device. Operate the nut 13 and the snap ring 14 to adjust the distance of the printing head seat body 11 relative to the cylinder body.

[0037] As a further improvement of the present utility model: a front and rear direction seat body 7 is provided at the top of the cylinder body 2, and the lower ends of the longitudinal screw 12 and the limiting rod 17 are fixed to the seat body 7.

[0038] The printing head seat body 11 is engaged with the stroke adjusting member 6.

[0039] As a further improvement of the present invention: the cross baffle 16 and the front and rear frame rods 15 are fixed by screws.

[0040] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do 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.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A silk screen printing machine ink scraping device, characterized in that: It includes an adjusting device, a cylinder body, an upper cross bar, longitudinal guide rods, a bottom scraper clamp, a left piston and a left piston rod, a right piston and a right piston rod, and a stroke adjusting member. The cylinder body includes four longitudinal guide holes, a left piston chamber and a right piston chamber. The top and bottom of the left piston chamber and the right piston chamber are provided with left piston rod holes and right piston rod holes. The adjusting device is arranged above the cylinder body and connected to the cylinder body. The longitudinal guide rods are slidably matched with the longitudinal guide holes. An upper cross bar and a bottom scraper clamp are respectively fixed to the upper and lower ends of the two longitudinal guide rods on the left side. Another upper cross bar and a bottom scraper clamp are fixed to the upper and lower ends of the two longitudinal guide rods on the right side. The left piston is arranged in the left piston chamber, and the left piston rod is slidably matched and sealed with the left piston rod hole. The right piston is arranged in the right piston chamber, and the right piston rod is slidably matched and sealed with the right piston rod hole. The upper ends of the left piston rod and the right piston rod are respectively matched with the upper cross bar, and the lower ends are fixed to the bottom scraper clamp. The stroke adjusting member is arranged on the upper cross bar and is matched with the adjusting device for limiting. During operation, the left piston rod and the right piston rod alternately retract and extend.

2. The silk screen printing machine ink scraping device according to claim 1, wherein: The stroke adjusting member is a bolt. A screw hole is provided in the middle of the upper cross bar. The screw rod of the bolt is screwed with the screw hole, and the head is matched with the adjusting device for limiting.

3. The silk screen printing machine ink scraping device according to claim 2, characterized in that: The head of the bolt is cylindrical and is provided with an internal hexagonal tool hole with an upper opening.

4. A silk screen printing machine ink scraping device according to claim 2, characterized in that: The head of the bolt is regular hexagonal.

5. The silk screen printing machine ink scraping device according to claim 1, characterized in that: The adjusting device includes a printing head seat body, a longitudinal screw, a nut, a snap ring or a lower nut, a front-back support rod, a transverse baffle, a locking screw and a limiting rod. The printing head seat body is provided with a left horizontal rod hole and a left clearance groove with a lower opening, a left fastening hole, a right horizontal rod hole and a right clearance groove with a lower opening, a right fastening hole, a middle longitudinal rod hole and a limiting rod hole. The transverse baffle is fixed to the front end of the front-back support rod. The front-back support rod is matched with the left horizontal rod hole and the right horizontal rod hole. The locking screw is screwed with the left fastening hole to fix the front-back support rod in the left horizontal rod hole. The locking screw is screwed with the right fastening hole to fix the front-back support rod in the right horizontal rod hole. The limiting rod is fixed to the cylinder body and is slidably matched with the limiting rod hole. The lower end of the longitudinal screw is fixed to the cylinder body, and the upper part passes through the middle longitudinal rod hole and is screwed with the nut. The snap ring or the lower nut is matched with the longitudinal screw at the lower part of the printing head seat body.

6. The silk screen printing machine ink scraping device according to claim 5, wherein: A seat body in the front-back direction is provided at the top of the cylinder body. The lower ends of the longitudinal screw and the limiting rod are fixed to the seat body.

7. The silk screen printing machine ink scraping device according to claim 5, wherein: The printing head seat body is matched with the stroke adjusting member.

8. A silk screen printing machine ink scraping device according to claim 5, characterized in that: The transverse baffle and the front-back support rod are fixed by screws.

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