A wire blocking mechanism and working method thereof

Abstract

The present invention discloses a line blocking mechanism, comprising: a base, with a cavity in the middle in the front-to-back direction; a cylinder, including a piston rod that can be telescopically moved in the front-to-back direction; a guide block installed in the cavity of the base; a rotating shaft with bearings installed at both ends, and the rotating shaft is installed above the base; a force arm, sleeved on the outer ring of the rotating shaft; the cylinder is arranged on the front end face of the base, and one end of the piston rod is floatingly connected to the guide block through a floating joint; the force arm is a gravity eccentric structure; the lower surface of the force arm is in contact with the upper surface of the guide block in the working state. The line blocking mechanism provided by the present invention, based on the technical characteristics of simple and compact overall structure and small number of components, can be applied to heavy-load blocking occasions where the height space is limited and the standard blocking cylinder cannot be installed, making up for the blocking work requirements in the limited field of the standard blocking cylinder; it has complete functions and a long service life, and has broad application prospects.

Description

Technical Field

[0001] The invention relates to a heavy load device blocking mechanism, in particular to a wire blocking mechanism and a working method thereof. Background Art

[0002] Blocking mechanisms (also known as stop mechanisms) are widely used in various heavy-load blocking situations. The current standard blocking cylinders are generally long in size and sometimes cannot be installed in some double-layer line applications with limited height. At the same time, standard blocking cylinders have complex structures, high prices, and are difficult to maintain. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a wire blocking mechanism and a working method thereof which have a simple structure, a compact size and are easy to maintain.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A line blocking mechanism, comprising:

[0006] A base, with a cavity in the middle in the front-rear direction;

[0007] A cylinder including a piston rod that moves telescopically in a forward and backward direction;

[0008] A guide block installed in the cavity of the base;

[0009] A rotating shaft with bearings installed at both ends, the rotating shaft is installed above the base;

[0010] A force-bearing arm, sleeved on the outer ring of the rotating shaft;

[0011] The cylinder is arranged on the front end surface of the base, and one end of the piston rod is floatingly connected to the guide block through a floating joint; the force-bearing arm is a gravity eccentric structure; the lower surface of the force-bearing arm is in contact with the upper surface of the guide block in the working state.

[0012] Its further technical solution is: symmetrical holes are provided on the left and right sides of the guide block, and the front end face of the guide block contacts the rear end face of the cylinder; a compression spring is provided in the symmetrical holes, and a spring baffle is provided on the rear side of the base to limit the displacement of the compression spring.

[0013] A further technical solution is as follows: a buffer block is provided on the rear end surface of the spring baffle, and the buffer block is detachably threadedly connected to the spring pressure plate.

[0014] A further technical solution is as follows: the top rear side of the force-bearing arm is a sloped structure, the top front side of the buffer pad is a sloped structure, and the sloped structure at the top rear side of the force-bearing arm is consistent with the sloped structure at the top front side of the buffer pad.

[0015] A further technical solution is as follows: the force-bearing arm is connected to the rotating shaft via a flat key arranged on the outer side of the rotating shaft, and bearing seats are respectively arranged at both ends of the rotating shaft for installing the bearings.

[0016] A further technical solution is as follows: a cylinder fixing plate is provided between the piston rod and the base, and the cylinder is installed in front of the cylinder fixing plate.

[0017] A further technical solution is as follows: pressure plates are respectively provided on the left and right end surfaces of the base.

[0018] A further technical solution is as follows: the cylinder further comprises a speed regulating joint arranged outside the cylinder body.

[0019] A working method of a wire blocking mechanism, applicable to the aforementioned wire blocking mechanism, comprises the following steps:

[0020] S1 release state: start the cylinder, the piston rod retracts, and the guide block quickly retreats under the rebound force of the compression spring and the force of the cylinder itself;

[0021] Since the force-bearing arm loses support at the bottom, it automatically tilts backward around the rotating axis under the action of gravity until it contacts the inclined surface of the buffer pad, and the piston rod stops retracting;

[0022] S2 blocking state: start the cylinder, the piston rod extends, and the guide block moves forward smoothly under the elastic resistance of the compression spring;

[0023] The upper surface of the guide block contacts the lower surface of the force-bearing arm, and the force-bearing arm automatically rotates around the rotating shaft until the lower surface of the force-bearing arm is parallel to the upper surface of the guide block, and the piston rod stops extending.

[0024] Beneficial effects compared with the prior art:

[0025] The linear blocking mechanism provided by the present invention can be applied to heavy-load blocking occasions where the height space is limited and the standard blocking cylinder cannot be installed based on the technical characteristics of the overall structure being simple and compact and the number of components being small, thereby making up for the blocking work requirements in the limited field of the standard blocking cylinder; based on the technical characteristics of the linear blocking mechanism utilizing the principle of gravity eccentric swing rod, when the cylinder piston rod is in the retracted state, the force arm tilts backward around the rotating shaft due to the gravity eccentric action, and at this time, the blocking mechanism is in the released state; when the cylinder piston rod is extended, the force arm rotates around the rotating shaft due to the reasoning action of the guide block, until the cylinder is extended to the set position, the upper surface of the guide block is parallel to the lower surface of the force arm, and at this time, the blocking mechanism is in the working state; the driving release or blocking operation is simple and efficient, the requirements for the workers' operation are reduced, and the working condition is stable; the linear mechanism saves space as a whole, is simple to install and operate, and is different from the existing conventional installation and force-bearing methods of the standard blocking cylinder, and can be better applied to heavy-load blocking occasions with narrow space. It has complete functions, long service life, and broad application prospects.

[0026] In order to more clearly understand the above-mentioned objects, characteristics and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 An exploded view of the linear blocking mechanism of the present invention;

[0028] Figure 2 for Figure 1 an overall structural view of the structure shown;

[0029] Figure 3 for Figure 2 The structure shown is installed in a structural schematic diagram of a double-drum production line with limited height;

[0030] Figure 4 A cross-sectional view of the linear blocking mechanism of the present invention in a released state;

[0031] Figure 5 It is a cross-sectional view of the blocking state structure of the linear blocking mechanism of the present invention.

[0032] Reference numerals:

[0033] 1 Cylinder 2 Cylinder fixing plate

[0034] 3 Base 4 Bearing seat

[0035] 5 Bearing 6 Pressure plate

[0036] 7 Guide block 9 Compression spring

[0037] 10 Spring pressure plate 12 Buffer block

[0038] 16 Rotating shaft 17 Load bearing arm

[0039] 18 Buffer pad 100 Linear blocking mechanism

[0040] 200 Upper drum line 300 Carrier

[0041] 400 Lower roller line DETAILED DESCRIPTION

[0042] In the following specific description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0043] like Figure 1-5 As shown, specific embodiment 1,

[0044] The present invention provides a wire blocking mechanism, comprising the following components:

[0045] A base 3, with a cavity in the middle in the front-to-back direction, a semi-open structure at the top, steps at the left and right sides of the top, and pressure plates 6 at the left and right end surfaces of the base 3;

[0046] A cylinder 1 includes a piston rod that can move telescopically in the front-rear direction, and also includes a speed regulating joint arranged on the outside of the cylinder body. The rotating joint can adjust the telescopic movement rate of the piston rod; a cylinder fixing plate 2 is arranged between the piston rod and the base 3, and the cylinder 1 is installed on the front side of the cylinder fixing plate 2.

[0047] A guide block 7 is installed in the cavity of the base 3, and the left and right sides of the top of the guide block 7 are provided with recesses that match the steps of the base 3 to limit the displacement of the guide block 7 in the left and right directions;

[0048] The rotating shaft 16 with bearings 5 ​​is installed at both ends, and the rotating shaft 16 is installed above the base 3;

[0049] A force bearing arm 17 is sleeved on the outer ring of the rotating shaft 16, and a buffer rubber pad 18 is provided on the top of the force bearing arm 17;

[0050] The cylinder 1 is arranged on the front end surface of the base 3, and one end of the piston rod is floatingly connected to the guide block 7 through a floating joint; the force arm 17 is a gravity eccentric structure; the lower surface of the force arm 17 contacts the upper surface of the guide block 7 in the working state.

[0051] Symmetrical holes are arranged on the left and right sides of the guide block 7, and the front end face of the guide block 7 contacts the rear end face of the cylinder 1; compression springs 9 are arranged in the symmetrical holes, and a spring baffle is arranged on the rear side of the base 3 to limit the displacement of the compression spring 9.

[0052] A buffer block 12 is provided on the rear end face of the spring baffle, and the buffer block 12 is detachably threadedly connected to the spring pressure plate 10. The buffer block 12 is used to withstand and release the gravity impact when the force-bearing arm 17 tilts backward, thereby increasing the stability of the overall structure.

[0053] The top rear side of the force-bearing arm 17 is an inclined surface structure, and the top front side of the buffer pad 12 is an inclined surface structure. The inclined surface structure at the top rear side of the force-bearing arm 17 and the inclined surface structure at the top front side of the buffer pad 12 have the same inclination.

[0054] The force-bearing arm 17 is connected to the rotating shaft 16 via a flat key arranged on the outer side of the rotating shaft 16 . Bearing seats 4 for installing bearings 5 ​​are also respectively arranged at both ends of the rotating shaft 16 .

[0055] By utilizing the principle of gravity eccentricity, the blocking requirement can be achieved through a simple and reliable mechanical structure, and the stability is enhanced.

[0056] like Figure 4-5 As shown, a working method of a linear blocking mechanism provided by the present invention is applicable to the aforementioned linear blocking mechanism, and includes the following specific steps:

[0057] S1 release state: start the cylinder 1, the piston rod retracts, and the guide block 7 quickly retreats under the rebound force of the compression spring 9 and the force of the cylinder 1 itself;

[0058] Since the force-bearing arm 17 loses support at the bottom, it automatically tilts backward around the rotating shaft 16 under the action of gravity until it contacts the inclined surface of the buffer pad 12, and the piston rod stops retracting;

[0059] S2 blocking state: start the cylinder 1, the piston rod extends, and the guide block 7 moves forward smoothly under the elastic resistance of the compression spring 9;

[0060] The upper surface of the guide block 7 contacts the lower surface of the force-bearing arm 17, and the force-bearing arm 17 automatically rotates around the rotating shaft 16 until the lower surface of the force-bearing arm 17 is parallel to the upper surface of the guide block 7, and the piston rod stops extending.

[0061] like Figure 3 As shown, in a double-drum production line with limited height, the height between the upper drum line 200 and the lower drum line 400 is insufficient under such working conditions, and a standard blocking cylinder cannot be installed. The line blocking mechanism provided by the present invention is installed between the two drums installed on the upper drum line 200, and the carrier 300 moves between the tracks of the upper drum line 200, and is effectively limited by the line blocking mechanism.

[0062] The linear blocking mechanism provided by the present invention can be applied to heavy-load blocking occasions where the height space is limited and the standard blocking cylinder cannot be installed based on the technical characteristics of the overall structure being simple and compact and the number of components being small, thereby making up for the blocking work requirements in the limited field of the standard blocking cylinder; based on the technical characteristics of the linear blocking mechanism utilizing the principle of gravity eccentric swing rod, when the cylinder piston rod is in the retracted state, the force arm tilts backward around the rotating shaft due to the gravity eccentric action, and at this time, the blocking mechanism is in the released state; when the cylinder piston rod is extended, the force arm rotates around the rotating shaft due to the reasoning action of the guide block, until the cylinder is extended to the set position, the upper surface of the guide block is parallel to the lower surface of the force arm, and at this time, the blocking mechanism is in the working state; the driving release or blocking operation is simple and efficient, the requirements for the workers' operation are reduced, and the working condition is stable; the linear mechanism saves space as a whole, is simple to install and operate, and is different from the existing conventional installation and force-bearing methods of the standard blocking cylinder, and can be better applied to heavy-load blocking occasions with narrow space. It has complete functions, long service life, and broad application prospects.

[0063] The above examples are only used to further illustrate the technical content of the present invention for ease of understanding, but do not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A line blocking mechanism, characterized in that: include: A base, with a cavity in the middle in the front-rear direction; A cylinder including a piston rod that moves telescopically in a forward and backward direction; A guide block installed in the cavity of the base; A rotating shaft with bearings installed at both ends, the rotating shaft is installed above the base; A force-bearing arm, sleeved on the outer ring of the rotating shaft; The cylinder is arranged on the front end surface of the base, and one end of the piston rod is connected to the guide block in a floating manner through a floating joint; the force-bearing arm is a gravity eccentric structure; the lower surface of the force-bearing arm is in contact with the upper surface of the guide block in the working state; Symmetrical holes are provided on the left and right sides of the guide block, and the front end surface of the guide block contacts the rear end surface of the cylinder; compression springs are provided in the symmetrical holes, and a spring baffle is provided on the rear side of the base to limit the displacement of the compression spring; A buffer block is provided on the rear end surface of the spring baffle, and the buffer block is detachably threadedly connected to the spring baffle; The top end of the rear side of the force-bearing arm is a sloped structure, and the top end of the front side of the buffer pad is a sloped structure. The sloped structure at the top end of the rear side of the force-bearing arm and the sloped structure at the top end of the front side of the buffer pad have the same inclination. The force-bearing arm is connected to the rotating shaft via a flat key arranged on the outside of the rotating shaft. Bearing seats are respectively provided at both ends of the rotating shaft for installing the bearings.

2. The line blocking mechanism according to claim 1, characterized in that: A cylinder fixing plate is provided between the piston rod and the base, and the cylinder is installed on the front side of the cylinder fixing plate.

3. The line blocking mechanism according to claim 1, characterized in that: The left and right end surfaces of the base are respectively provided with pressure plates.

4. The line blocking mechanism according to claim 1, characterized in that: The cylinder also includes a speed regulating joint arranged outside the cylinder body.

5. A working method of a wire blocking mechanism, based on the wire blocking mechanism according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1 release state: start the cylinder, the piston rod retracts, and the guide block quickly retreats under the rebound force of the compression spring and the force of the cylinder itself; Since the force-bearing arm loses support at the bottom, it automatically tilts backward around the rotating axis under the action of gravity until it contacts the inclined surface of the buffer pad, and the piston rod stops retracting; S2 blocking state: start the cylinder, the piston rod extends, and the guide block moves forward smoothly under the elastic resistance of the compression spring; The upper surface of the guide block contacts the lower surface of the force-bearing arm, and the force-bearing arm automatically rotates around the rotating shaft until the lower surface of the force-bearing arm is parallel to the upper surface of the guide block, and the piston rod stops extending.

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