CN212217700U

CN212217700U - Spring mounting mechanism of paper puncher

Info

Publication number: CN212217700U
Application number: CN202020802798.2U
Authority: CN
Inventors: 孙慧平
Original assignee: Ningbo University of Technology
Current assignee: Ningbo University of Technology
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-25
Anticipated expiration: 2030-05-14

Abstract

The invention discloses a spring mounting mechanism of a paper punching machine, which comprises a workbench, wherein a spring press-mounting mechanism is arranged above the workbench and comprises a spring compression mechanism and a spring transfer mechanism, the spring compression mechanism is used for compressing a spring, and the spring transfer mechanism is used for grabbing the compressed spring and pressing the compressed spring onto a punching machine base. The invention has the following beneficial effects: the spring mounting mechanism of the paper punching machine adopts the technical scheme of pre-pressing and then switching assembly, and firstly, the spring is ensured not to be unstable and jump out in the compression deformation process; and secondly, the spring is released only in a tiny length through the fine change of the length and the size of the switching paw and the prepressing mechanism, so that the generation of impact force is avoided, and the accurate assembly in place is ensured.

Description

Spring mounting mechanism of paper puncher

Technical Field

The invention relates to the technical field of paper perforating machine production equipment, in particular to a mechanism for pressing a spring onto a perforating machine base.

Background

The manual hole puncher is one of stationery products with more uses, has a simple structure, is connected with a group of movable supporting pieces 3 between a base 1 and a handle 2, and is characterized in that a spring 4 is sleeved on the periphery of each supporting piece 3, wherein a lifting lug 5 is arranged on the base 1, the supporting pieces 3 penetrate through the lifting lug 5 and are tightly matched with a limiting hole on the base 1, and a clamp spring 6 is pressed on each supporting piece 3, as shown in fig. 1 and 2.

The handle of the manual puncher is of a movable lever structure, the support piece is driven to move downwards and amplify acting force by manually pressing down the handle, and the manual puncher is matched with a female die (hole) on a base to complete punching, slicing, corner cutting and other work of materials such as paper products, plastics, leather materials, cloth and the like. When the handle is released, the spring around the support returns the support to its original position.

In the automatic assembly process of the manual puncher, the installation of the spring is an important link, and the problem that the spring is difficult to ensure not to jump out and be unstable in the assembly process exists in the link.

Based on the above problems, there is a need for improvements in the art.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a spring mounting mechanism of a paper punching machine.

The invention is realized by the following technical scheme: a spring-loaded mechanism for a paper punch comprising: the spring press-fitting mechanism comprises a spring compression mechanism and a spring transfer mechanism, the spring compression mechanism is used for compressing the spring, and the spring transfer mechanism is used for grabbing the compressed spring and press-fitting the compressed spring onto the base of the perforating machine.

In the technical scheme, the spring compression mechanism comprises an installation panel, a spring placing groove used for placing a spring is formed in the installation panel, a compression push rod is arranged at one end of the spring placing groove and is pushed by a compression push rod cylinder arranged on the back face of the installation panel, and the installation panel pushes the cylinder by the installation panel arranged on the workbench.

In the technical scheme, the spring transfer mechanism comprises two spring clamping jaws, the spring clamping jaws are provided with opening ends, the spring clamping jaws are arranged on a sliding block, and the sliding block pushes a cylinder to push the cylinder to move longitudinally through the spring clamping jaws.

In the technical scheme, a spring blanking slide rail is obliquely arranged on one side of a spring placing groove of the spring compression mechanism, springs are arranged in the spring blanking slide rail, and a blocking part controlled by a servo mechanism is arranged at a blanking end of the spring blanking slide rail so as to control one spring to fall into the spring placing groove at each time.

The invention has the following beneficial effects: the spring mounting mechanism of the paper punching machine adopts the technical scheme of pre-pressing and then switching assembly, and firstly, the spring is ensured not to be unstable and jump out in the compression deformation process; and secondly, the spring is released only in a tiny length through the fine change of the length and the size of the switching paw and the prepressing mechanism, so that the generation of impact force is avoided, and the accurate assembly in place is ensured.

Drawings

Fig. 1 is a schematic structural view of a paper punch overall machine.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic perspective view of the present invention.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic perspective view of the spring transfer mechanism.

Fig. 6 is a schematic view from below in fig. 5.

Fig. 7 is a perspective view of the spring compression mechanism.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 7, the spring mounting mechanism of the paper punch comprises a workbench 1, a spring press-mounting mechanism 5 is arranged above the workbench 1, the spring press-mounting mechanism 5 comprises a spring compression mechanism 50 and a spring transfer mechanism 51, the spring compression mechanisms 50 are arranged in two groups at intervals and comprise a mounting panel 50a, a spring placing groove 50b for placing a spring is arranged on the mounting panel 50a, a compression push rod 50c is arranged at one end of the spring placing groove 50b, the compression push rod 50c is pushed by a compression push rod cylinder 50d arranged on the back of the mounting panel 50a, and the mounting panel 50a pushes a cylinder 50e through the mounting panel arranged on the workbench 1; the spring transfer mechanism 51 includes two spring jaws 51a, the spring jaws 51a having open ends.

The action mechanism of the spring press-mounting mechanism 5 is as follows: firstly, the compression push rod 50c acts to compress the spring in the spring placing groove 50b, then the installation panel 50a is pushed by the installation panel pushing air cylinder 50e, so that the spring placing groove 50 is positioned under the spring clamping jaw 51a, at the moment, the spring clamping jaw 51a pushes the spring clamping jaw 51e to move downwards through the spring clamping jaw pushing air cylinder 51e, so that the compressed spring is positioned in the opening of the spring clamping jaw 51a, and meanwhile, the compression push rod 50c retracts, so that the compressed spring is limited in the opening of the spring clamping jaw 51 a; at this time, the mounting panel pushes the cylinder 50e to apply force, so as to drive the mounting panel 50a to return; the spring jaw 51a continues to push it down by the spring jaw pushing cylinder 51e until it is located in the lifting lug of the punch base.

In the above structure, the assembling speed can be adjusted according to the magnitude of the assembling force. If the dimensional deformation of the upper lifting lug of the base is found to be too large during the assembly process, the spring is lifted up together with the spring clamping jaw 51a, and the assembly with the punch base is abandoned, and a new punch base is waited. The current puncher base descends to sorting mechanism releases, handles as the defective products, and this step is always, and the lug deformation is too big has two kinds of situations, and the interval draws big or diminishes promptly, but either kind, all can block the passageway that the clamping jaw rises and descends, and the resistance when making the decline becomes very big. At the moment, the current of the driving mechanism is increased, and the control module controls the motor to reversely rotate and exit when the control current exceeds a set value.

Preferably, a spring blanking slide rail 100 is obliquely arranged on one side of the spring placement groove 50b of the spring compression mechanism 50, springs are arranged in the spring blanking slide rail 100, and a blocking member controlled by a servo mechanism is arranged at the blanking end of the spring blanking slide rail 100 to control that one spring is dropped into the spring placement groove at a time.

It should be noted that although the mechanism for outputting power is limited to be a cylinder in the present application, it is known to those skilled in the art that the power mechanism may be configured as a motor or other mechanism for the purpose of outputting power.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be appreciated by persons skilled in the art that the present invention is not limited by the embodiments described above. The foregoing embodiments and description of the invention have been provided for the purposes of illustrating the principles of the invention and is subject to various changes and modifications without departing from the spirit and scope of the invention. Such variations and modifications are intended to be within the scope of the claimed invention.

Claims

1. Spring installation mechanism of paper puncher, its characterized in that includes: workstation (1) top is provided with spring pressure equipment mechanism (5), spring pressure equipment mechanism (5) are including spring compression mechanism (50) and spring transfer mechanism (51), spring compression mechanism (50) are used for compressing the spring, spring transfer mechanism (51) are used for snatching the spring after the compression to on pressure equipment to the puncher base with it.

2. The spring mounting mechanism for a paper punch as recited in claim 1, wherein: the spring compression mechanism (50) comprises a mounting panel (50 a), a spring placing groove (50 b) for placing a spring is arranged on the mounting panel (50 a), a compression push rod (50 c) is arranged at one end of the spring placing groove (50 b), the compression push rod (50 c) is pushed by a compression push rod cylinder (50 d) arranged on the back surface of the mounting panel (50 a), and the mounting panel (50 a) pushes a cylinder (50 e) by the mounting panel arranged on the workbench (1).

3. The spring mounting mechanism for a paper punch as recited in claim 1, wherein: the spring transfer mechanism (51) comprises two spring clamping jaws (51 a), the spring clamping jaws (51 a) are provided with open ends, the spring clamping jaws (51 a) are arranged on a sliding block (51 d), and the sliding block (51 d) is pushed to be longitudinally displaced by a spring clamping jaw pushing cylinder (51 e).

4. The spring mounting mechanism for a paper punch as recited in claim 2, wherein: the spring blanking slide rail (100) is obliquely arranged on one side of a spring placing groove (50 b) of the spring compression mechanism (50), springs are arranged in the spring blanking slide rail (100), and a blocking part controlled by a servo mechanism is arranged at the blanking end of the spring blanking slide rail (100) so as to control one spring to fall into the spring placing groove at each time.