Stretching correcting device for chain production

Abstract

The utility model discloses a stretching proofreading device for chain production, which comprises a support strip, the inner side surface of the support strip is provided with a strip-shaped opening, the inner side surface of the strip-shaped opening is connected with a threaded rod through a bearing, one side of the threaded rod is connected with a first moving column through a forward thread, and the other side of the threaded rod is connected with a second moving column through a reverse thread. The outer surface of the other side of the threaded rod is connected with a second moving column through reverse threads, stretching strips are inserted into the surfaces of the inner sides of the upper ends of the first moving column and the second moving column in a penetrating mode, cambered surface notches are formed in the inner sides of the stretching strips, and installation and replacement can be facilitated through the built-in threaded rod structure and the stretching strip structure with the upper end installed in an inserted connection and magnetic attraction mode; the twisting handle is arranged outside, twisting operation is facilitated, taking and using are convenient, and the structure is not prone to damage and deformation.

Description

Technical Field

[0001] The utility model relates to the field of stretching and proofreading devices for chain production, and more specifically, to a stretching and proofreading device for chain production. Background Art

[0002] During chain production, the two ends of the chain need to be checked. The chains at both ends need to be stretched and combined to check whether they can be connected together. It is not convenient to pull the chain by manpower, and the electronic control equipment has poor accuracy, which makes it easy to break the chain.

[0003] In the prior art, the utility model CN203972750U discloses a chain tensioner for tightening a broken chain during docking, the chain tensioner comprising a first screw-in claw mounting plate, a second screw-in claw mounting plate, a chain claw, a tensioning screw and a guide rod, the tensioning screw 4 being the main component for controlling the movement of the first screw-in claw mounting plate 1 and the second screw-in claw mounting plate 2 and even the chain claw 3. Since the utility model sets the spiral line direction of the threaded through hole of the first screw-in type pulling claw mounting plate to be opposite to the spiral line direction of the threaded through hole of the second screw-in type pulling claw mounting plate, for example, the threaded through hole of the first screw-in type pulling claw mounting plate is a left-handed thread and the threaded through hole of the second screw-in type pulling claw mounting plate is a right-handed thread, and at the same time, the spiral line direction of the first screw segment is set to be opposite to the spiral line direction of the second screw segment, for example, the first screw segment of the tensioning screw is a left-handed thread and the second screw segment is a right-handed thread; when fitting, only two components with the same spiral line direction can be fitted together, for example, the first screw-in type pulling claw mounting plate is fitted on the first screw segment of the tensioning screw through the threaded through hole, because both are left-handed threads, and similarly the second screw-in type pulling claw The mounting plate is sleeved on the second screw section of the tensioning screw through a threaded through hole. Because both are right-hand threads, by rotating the tensioning screw 4 clockwise or counterclockwise, the first screw-in claw mounting plate 1 and the second screw-in claw mounting plate 2 will move simultaneously and approach each other or move simultaneously and move away from each other, thereby reducing or expanding the opening between the two chain claws to achieve the effect of adjustment or tightening. The chain tensioner of the utility model for tightening a broken chain during docking has a simple structure and is easy to operate. Chain claws of different specifications can be replaced according to chains of different specifications, and it has a wide range of applicability. In addition, the broken chain can be quickly tightened and docked, which can omit the process of manually tightening the chain when docking the chain, effectively improving the working efficiency.

[0004] The hook structure disclosed in the above patent can tighten the chain, but the hook head cannot be replaced during use, and the structural firmness is poor. The bracket-type structure is not convenient for workers to take and operate, and the threaded rod is exposed and easily damaged and deformed, which is inconvenient to twist. Utility Model Content

[0005] In response to the problems existing in the prior art, the purpose of the utility model is to provide a stretching and proofreading device for chain production. Through the built-in threaded rod structure and the stretching bar structure installed by plug-in magnetic suction at the upper end, it can be easily installed and replaced. A twist handle is arranged on the outside to facilitate twisting operation. It is easy to take and use, and the structure is not easily damaged or deformed.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A stretching and proofreading device for chain production comprises a support bar, the inner surface of the support bar is provided with a bar-shaped opening, the inner surface of the bar opening is connected to a threaded rod via a bearing, one side of the threaded rod is connected to a first movable column via a forward thread, the outer surface of the other side of the threaded rod is connected to a second movable column via a reverse thread, stretching bars are inserted into the inner surfaces of the upper ends of the first movable column and the second movable column, an arcuate incision is provided on the inner side of the stretching bar, a stretching bar structure with a plug-in magnetic installation on the upper end is provided through a built-in threaded rod structure, and a stretching bar structure with a plug-in magnetic installation on the upper end is convenient for installation and replacement, a twist handle is provided on the outside to facilitate twisting operation, and the handle is convenient to take and use, and the structure is not easily damaged or deformed.

[0008] Furthermore, the surfaces of the first movable column and the second movable column are provided with diamond-shaped sockets, the stretching bar is a diamond-shaped structure, and is inserted into the inner surface of the diamond-shaped socket. The stretching bar is a diamond-shaped structure, and is inserted into the inner surface of the diamond-shaped socket. The diamond-shaped structure is adopted, and the hook head has a firm structure. Compared with the bent hook structure, the bent hook end face is small and is easy to deform and break. The diamond structure has high structural strength. The hook structure is formed by the arc surface incision, which can hook the chains on both sides. The diamond structure has a large force point and high structural support strength.

[0009] Furthermore, the inner surface of the diamond-shaped socket of the first movable column and the second movable column is provided with a magnet block, and the stretching strip is inserted and installed, which is convenient for insertion and positioning, and the installation is convenient. A magnet block structure is provided at the bottom, which can be adsorbed on the inner side of the socket, which is convenient for adsorption and fixing, and the installation is firm and convenient to use. When replacing, it can be directly pulled out and replaced;

[0010] Furthermore, the outer end surface of the threaded rod is provided with a socket, and the inner surface of the socket is inserted with a twist handle, which is convenient for inserting and twisting the threaded rod. The twist handle can be provided to facilitate the rotation of the threaded rod structure;

[0011] Furthermore, a handle is fixed on the lower surface of the support bar. The handle is located on the lower surface of the middle end of the support bar. The handle is configured as a variable diameter cylindrical structure, which will not hurt the hand when held and is easy to use.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] Through the built-in threaded rod structure, the upper end adopts a tensile strip structure installed by plug-in magnetic suction, which can be easily installed and replaced. The external twist handle is convenient for twisting operation, easy to take and use, and the structure is not easy to be damaged or deformed.

[0014] The surfaces of the first moving column and the second moving column are provided with diamond-shaped sockets, and the stretching strip is a diamond-shaped structure, which is inserted into the inner surface of the diamond-shaped socket. The diamond-shaped structure is adopted, and the hook head has a firm structure. Compared with the bent hook structure, the bent hook end face is small and is easy to deform and break. The diamond structure has high structural strength. The hook structure is formed by the arc surface incision, which can hook the chains on both sides. The diamond structure has a large stress point and high structural support strength.

[0015] A magnet block is arranged on the inner surface of the diamond-shaped socket of the first movable column and the second movable column, and the stretching strip is inserted and installed, which is convenient for insertion and positioning, and the installation is convenient. A magnet block structure is arranged at the bottom, which can be adsorbed on the inner side of the socket, which is convenient for adsorption and fixing, and the installation is firm and convenient to use. When replacing, it can be directly pulled out and replaced;

[0016] The outer end surface of the threaded rod is provided with a socket, and the inner surface of the socket is inserted with a twist handle, which is convenient for inserting and twisting the threaded rod. The twist handle can be provided to facilitate the rotation of the threaded rod structure;

[0017] A handle is fixed on the lower surface of the support bar, and the handle is located on the lower surface of the middle end of the support bar for easy picking and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the support bar and the threaded rod of the utility model;

[0020] Figure 3 This is a view of a stretching strip of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the stretching strip of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1 support bar, 2 bar-shaped opening, 3 threaded rod, 4 positive thread, 5 first moving column, 6 second moving column, 7 stretching bar, 8 arc surface incision, 9 magnet block, 10 socket, 11 twist handle, 12 handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] See also Figure 1-4 A stretching and calibration device for chain production comprises a support bar 1, a strip-shaped opening 2 is arranged on the inner surface of the support bar 1, a threaded rod 3 is connected to the inner surface of the strip opening 2 through a bearing, a first moving column 5 is connected to one side of the threaded rod 3 through a forward thread 4, a second moving column 6 is connected to the outer surface of the other side of the threaded rod 3 through a reverse thread 40, a stretching bar 7 is inserted through the inner surfaces of the upper ends of the first moving column 5 and the second moving column 6, an arc-shaped cutout 8 is arranged on the inner side of the stretching bar 7, the inner side of the stretching bar 7 is provided with a structure of a built-in threaded rod 3, and the upper end adopts a structure of a stretching bar 7 installed by plug-in magnetic attraction, which can be easily installed and replaced, a twist handle is arranged on the outside, which is convenient for twisting operation, convenient for taking and using, and the structure is not easy to be damaged and deformed;

[0027] The outer end surface of the threaded rod 3 is provided with a socket 10, and the inner side surface of the socket 10 is inserted with a twist handle 11, which is convenient for twisting the threaded rod 3 to rotate, and the twisting is convenient;

[0028] A handle 12 is fixed to the lower surface of the support bar 1. The handle 12 is located on the lower surface of the middle end of the support bar 1, which is convenient for operation and gripping.

[0029] The surfaces of the first movable column 5 and the second movable column 6 are provided with diamond-shaped sockets, and the stretching bar 7 is a diamond-shaped structure, which is inserted into the inner surface of the diamond-shaped socket. The diamond-shaped structure is adopted, and the hook head has a firm structure. Compared with the curved hook structure in the above-mentioned application patent, the curved hook end face is small and easy to deform and break. The diamond structure has high structural strength. The hook structure is formed by the arc surface incision, which can hook the chains on both sides. The diamond structure has a large force point and high structural support strength.

[0030] A magnet block 9 is provided on the inner surface of the diamond-shaped sockets of the first movable column 5 and the second movable column 6; during installation, the stretching bar 7 is installed along the diamond-shaped sockets for easy insertion and positioning, and the installation is convenient. A magnet block 9 structure is provided at the bottom of the socket, and the stretching bar 7 can be adsorbed on the inner side of the socket (by adsorption of the magnet block 9), which is convenient for adsorption and fixation. The installation is firm and easy to use. When replacing, the stretching bar 7 can be directly pulled out and replaced.

[0031] Example 2

[0032] See also Figure 1-4A stretching and calibration device for chain production comprises a support bar 1, a strip-shaped opening 2 is arranged on the inner surface of the support bar 1, a threaded rod 3 is connected to the inner surface of the strip opening 2 through a bearing, a first moving column 5 is connected to one side of the threaded rod 3 through a forward thread 4, a second moving column 6 is connected to the outer surface of the other side of the threaded rod 3 through a reverse thread 40, a stretching bar 7 is inserted through the inner surfaces of the upper ends of the first moving column 5 and the second moving column 6, an arc-shaped cutout 8 is arranged on the inner side of the stretching bar 7, the inner side of the stretching bar 7 is provided with a structure of a built-in threaded rod 3, and the upper end adopts a structure of a stretching bar 7 installed by plug-in magnetic attraction, which can be easily installed and replaced, a twist handle is arranged on the outside, which is convenient for twisting operation, convenient for taking and using, and the structure is not easy to be damaged and deformed;

[0033] The surfaces of the first movable column 5 and the second movable column 6 are provided with diamond-shaped sockets, and the stretching bar 7 is a diamond-shaped structure and is inserted into the inner surface of the diamond-shaped sockets;

[0034] A magnet block 9 is provided on the inner surface of the diamond-shaped socket of the first movable column 5 and the second movable column 6;

[0035] The outer end surface of the threaded rod 3 is provided with a socket 10, and the inner side surface of the socket 10 is inserted with a twist handle 11;

[0036] A handle 12 is fixed to the lower surface of the support bar 1. The handle 12 is located on the lower surface of the middle end of the support bar 1 for easy operation.

[0037] When in use, it can be grasped by the handle 12, and the threaded rod 3 can be rotated (twist the handle 11 to rotate, which is convenient for twisting). When the threaded rod 3 rotates, a first movable column 5 can be connected to one side of the threaded rod 3 through a forward thread 4, and the outer surface of the other side of the threaded rod 3 is connected to the second movable column 6 through a reverse thread 40. The inner surfaces of the upper ends of the first movable column 5 and the second movable column 6 are interspersed with stretching bars 7, which can drive the movable columns on both sides to retract and move inward. The position of the stretching bar 7 can be adjusted. After being inserted into the chain holes on both sides, the threaded rod 3 continues to be rotated, and the chain can be pulled together and proofread through the stretching bar 7. It is easy to use and easy to operate.

[0038] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A stretching and calibration device for chain production, comprising a support bar (1), characterized in that: The inner surface of the support bar (1) is provided with a strip-shaped opening (2), the inner surface of the strip-shaped opening (2) is connected to a threaded rod (3) via a bearing, one side of the threaded rod (3) is connected to a first movable column (5) via a forward thread (4), and the outer surface of the other side of the threaded rod (3) is connected to a second movable column (6) via a reverse thread (40), and a stretching bar (7) is inserted into the inner surface of the upper end of the first movable column (5) and the second movable column (6), and an arc-shaped incision (8) is provided on the inner side of the stretching bar (7).

2. A stretching and calibration device for chain production according to claim 1, characterized in that: The surfaces of the first movable column (5) and the second movable column (6) are provided with diamond-shaped sockets, and the stretching strip (7) is a diamond-shaped structure and is inserted into the inner surface of the diamond-shaped sockets.

3. A stretching and calibration device for chain production according to claim 1, characterized in that: Magnet blocks (9) are arranged on the inner surfaces of the rhombus-shaped sockets of the first movable column (5) and the second movable column (6).

4. A stretching and calibration device for chain production according to claim 1, characterized in that: The outer end surface of the threaded rod (3) is provided with a socket (10), and the inner side surface of the socket (10) is inserted with a twist handle (11).

5. The stretching calibration device for chain production according to claim 1, characterized in that: A handle (12) is fixed to the lower surface of the support bar (1), and the handle (12) is located on the lower surface of the middle end of the support bar (1).

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