A square bale baler knotter shaft assembly assembly fixture

Abstract

A kind of middle-set square bale tying machine knotter shaft assembly assembly tool, including base plate, pin hole seat and two limit blocks, the center of the pin hole seat is through with cavity along axis, the limit block is vertically arranged in the top of pin hole seat, and symmetrically arranged about the cavity of pin hole seat, positioning hole is horizontally opened on the side wall of pin hole seat, first knotter shaft is vertically inserted into cavity, the hole of its insertion end is aligned with positioning hole after insertion, then knotter cam is sleeved on knotter shaft, the knotter cam has hole and inserts tight bolt and is fixed on knotter shaft, the bottom of knotter cam is horizontally overlapped on limit block.The utility model is preassembled knotter shaft assembly by assembly tool, vertical tool consisting of base plate, pin hole seat and two limit blocks, when assembling each component of knotter, it can be quickly and conveniently adjusted installation distance and form integral assembly by pulling and inserting, and assembly efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of square bundling machine knotters, specifically to an assembly tooling for a centrally located square bundling machine knotter shaft assembly. Background Technology

[0002] During the assembly process of the center-mounted square strapping machine's knotter, it is necessary to adjust the axial distance between the knotter cam and the knotter shaft, the distance between the knotters themselves, the distance between the knotter and the knotter cam, and the axial distance between the knotter and the knotter bracket. Because there are many positional relationships that need to be adjusted, and the knotter assembly itself is quite heavy, it is extremely inconvenient to adjust after it is installed on the knotter bracket. If adjustment is required, the entire knotting shaft assembly must be disassembled, resulting in low work efficiency.

[0003] To address this, a centrally located square bundling machine knotter assembly fixture was designed to facilitate knotter assembly and adjustment, thereby improving assembly efficiency. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the purpose of this utility model is to provide an assembly fixture for the knotter shaft assembly of a centrally located square strapping machine, to solve the technical problem of low assembly efficiency caused by inconvenient knotter assembly and adjustment.

[0005] This utility model is achieved through the following technical solution:

[0006] A centrally mounted square strapping machine knotter shaft assembly assembly fixture includes a base plate, a pin hole seat, and two limiting blocks. The pin hole seat has a cavity extending through its center along the axis. The limiting blocks are arranged parallel to each other vertically on the top of the pin hole seat and symmetrically about the cavity of the pin hole seat. A positioning hole is horizontally opened on the side wall of the pin hole seat. First, the knotter shaft is vertically inserted into the cavity. After the hole at its insertion end is aligned with the positioning hole, a positioning pin is inserted to fix it. Then, a knotter cam is fitted onto the knotter shaft. The knotter cam has a hole and a set bolt is inserted to fix it onto the knotter shaft. The bottom of the knotter cam horizontally overlaps the limiting block.

[0007] Preferably, a group of spacers and knotters are sequentially fitted onto the knotter shaft, and the installation distance between adjacent knotters is ensured by adding adjusting shims. Finally, the sealing spacer is fitted and locked with a round nut and a locking washer.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] This utility model pre-assembles the knotter shaft assembly using a tooling fixture. The vertical tooling fixture, consisting of a base plate, a pin hole seat, and two limiting blocks, allows for quick and convenient adjustment of the installation distance and formation of a complete assembly by plugging and unplugging various components of the knotter. This saves assembly time and improves work efficiency. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the assembly tooling for the centrally located square bundling machine knotter shaft assembly of this utility model;

[0012] Figure 2 for Figure 1 Top view;

[0013] Figure 3 This is a schematic diagram of the structure of the knotter shaft, knotter cam, and knotter of this utility model, which are installed in sequence.

[0014] Figure 4 This is a schematic diagram of the structure of the present invention, showing the assembled knotter shaft assembly installed on the knotter bracket.

[0015] Among them, the base plate 1, pin hole seat 2, cavity 201, positioning hole 202, limit block 3, positioning pin 4, knotter shaft 5, knotter cam 6, spacer 7, knotter 8, adjusting shim 9, sealing spacer 10, round nut 11, stop washer 12, set bolt 13, bearing one 14, bearing two 15, knotter bracket 16. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings. Figure 1An assembly fixture for a centrally mounted square bundling machine knotter shaft assembly is shown, including a base plate 1, a pin hole seat 2, and two limiting blocks 3. The center of the pin hole seat 2 has a cavity 201 extending along the axis. The limiting blocks 3 are arranged vertically parallel to each other on the top of the pin hole seat 2 and are symmetrically arranged about the cavity 201 of the pin hole seat 2. A positioning hole 202 is horizontally opened on the side wall of the pin hole seat 2. First, the knotter shaft 5 is vertically inserted into the cavity 201. After the hole at its insertion end is aligned with the positioning hole 202, a positioning pin 4 is inserted to fix it. Then, a knotter cam 6 is fitted onto the knotter shaft 5. The knotter cam 6 has a hole and a set bolt 13 is inserted to fix it onto the knotter shaft 5. The bottom of the knotter cam 6 is horizontally overlapped on the limiting block 3, thereby ensuring the distance d between the knotter cam 6 and the bottom end of the knotter shaft. By assembling the knotter shaft assembly using a pre-assembled tooling, the vertical tooling consisting of a base plate, pin hole seat, and two limit blocks allows for quick and convenient adjustment of the installation distance and formation of a complete assembly through plugging and unplugging when assembling various parts of the knotter, saving assembly time and improving work efficiency.

[0018] A set of spacers 7 and knotters 8 are sequentially fitted onto the knotter shaft 5. The installation distance between adjacent knotters 8 is ensured by adding adjusting shims 9. Finally, the encapsulation spacer 10 is fitted and locked with round nuts 11 and stop washers 12.

[0019] The working principle of this utility model:

[0020] The assembly is divided into two parts: such as Figure 3 During assembly, first insert the knotter shaft 5 into the cavity 201 of the pin hole seat 2 and fix it with the positioning pin 4. Then, put the knotter cam 6 on and fix it with the set bolt 13 to ensure the installation distance d1 between the knotter cam 6 and the knotter shaft 5. Next, put on the spacer sleeve 7 and the knotter 8, and add the adjusting shim 9 to ensure the installation distance d2 between the knotter cam 6 and the knotter 8. Then, put on the spacer sleeve 7 and the knotter 8, and add the adjusting shim 9 to ensure the installation distance d3 between the knotter 8 and the knotter 8. Finally, put on the encapsulation spacer sleeve 10 and lock it with the round nut 11 and the locking washer 12 to fix the knotter 8 on the knotter shaft 5 to form the assembly.

[0021] like Figure 4 During the second part of the assembly, the knotter bracket 16 is mounted on bearing 14 and bearing 15. The installation distance d4 between the knotter 8 and the knotter bracket 16 is ensured by adding adjusting shims 9, which reduces the adjustment steps, saves time, and effectively improves work efficiency.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An assembly fixture for a centrally located square strapping machine knotter shaft assembly, characterized in that: The device includes a base plate (1), a pin hole seat (2), and two limiting blocks (3). The center of the pin hole seat (2) has a cavity (201) through it along the axis. The limiting blocks (3) are arranged vertically parallel to each other on the top of the pin hole seat (2) and are symmetrically arranged about the cavity (201) of the pin hole seat (2). A positioning hole (202) is horizontally opened on the side wall of the pin hole seat (2). First, the knotter shaft (5) is vertically inserted into the cavity (201). After the hole at its insertion end is aligned with the positioning hole (202), a positioning pin (4) is inserted to fix it. Then, a knotter cam (6) is fitted onto the knotter shaft (5). The knotter cam (6) has a hole and a set bolt (13) is inserted to fix it onto the knotter shaft (5). The bottom of the knotter cam (6) is horizontally overlapped on the limiting block (3).

2. The assembly fixture for the centrally located square strapping machine knotter shaft assembly according to claim 1, characterized in that: The knotter shaft (5) is fitted with a set of spacers (7) and knotters (8) in sequence. The installation distance between adjacent knotters (8) is ensured by adding adjusting shims (9). Finally, the encapsulation spacer (10) is fitted in and locked with round nuts (11) and stop washers (12).

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