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Hydraulic driving system for notching machine

A drive system and technology for a groove press, which is applied to the hydraulic drive system of a groove press and the field of a hardcover book groove press, can solve problems such as simple structure, and achieve the effect of simple structure and reliable action.

Active Publication Date: 2012-03-21
SHANGHAI ELECTRICAL HYDRAULICS & PNEUMATICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, so far, a kind of mechanism with simple structure has not yet appeared to realize the above-mentioned complex course of action

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Hydraulic driving system for notching machine
  • Hydraulic driving system for notching machine

Examples

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Embodiment Construction

[0011] like figure 1 As shown, the hydraulic drive system of the grooving machine of the present invention includes a first hydraulic pump 6, a second hydraulic pump 5, four three-position four-way reversing valves 17, 18.1, 18.2, 18.3, a grooving oil cylinder 21, a clamping Oil cylinder 22.

[0012] Wherein, the first hydraulic pump 6 and the second hydraulic pump 5 are located on a double pump, driven by the motor 4, the first hydraulic pump 6 is a quantitative pump, the second hydraulic pump 5 is a variable pump, the first hydraulic pump 6 The oil pressure of 80 bar is provided for the system, and the second hydraulic pump 5 provides the oil pressure of 30 bar for the system.

[0013] The four three-position four-way reversing valves 17, 18.1, 18.2, and 18.3 each have two spools a, b and four oil ports. When the spool a is pushed to the valve cavity, the first oil port and the fourth oil port are realized. The connection between the first oil port and the third oil port, ...

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PUM

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Abstract

The invention discloses a hydraulic driving system for a notching machine. The hydraulic driving system comprises a first hydraulic pump (6), a second hydraulic pump (5), a three-position four-way reversing valve (17), a three-position four-way reversing valve (18.1), a three-position four-way reversing valve (18.2), a clamping cylinder (22) and a notching cylinder (21), wherein the first hydraulic pump (6) is connected to a first oil port of the three-position four-way reversing valve (17); the second hydraulic pump (5) is connected to a second oil port of the three-position four-way reversing valve (17) and a first oil port of the three-position four-way reversing valve (18.1); and a third oil port of the three-position four-way reversing valve (17) is connected to the first oil port of the three-position four-way reversing valve (18.1). The hydraulic driving system performs a clamping action and a notching action with large applied force and small applied force through two hydraulic pumps and 3 to 4 three-position four-way reversing valves, and has the advantages of simple structure and reliable actions.

Description

technical field [0001] The invention belongs to the technical field of book binding machinery, and relates to a hardcover book grooving machine, in particular to a hydraulic drive system of the grooving machine. Background technique [0002] In order to make an exquisite hardcover book, after the hardcover book is bound, a groove from top to bottom needs to be pressed on the cover near the spine. This groove becomes the positioning line when the book is turned over, preventing the hardcover book from being folded when it is turned. Uncertain location can easily lead to book damage. Embossing a groove on a hardcover book requires two actions, first clamping the book, and then embossing the groove. During the clamping process, a small force should be applied first, and then a larger force should be applied to maintain the clamped state; when pressing the groove, it is the same, first apply a small force to drive the pressing knife to the surface of the book, and then Apply f...

Claims

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Application Information

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IPC IPC(8): F15B11/028B42C13/00
Inventor 张杰
Owner SHANGHAI ELECTRICAL HYDRAULICS & PNEUMATICS