A tape sticking rotary arm machine head for a tape sticking machine

Abstract

This invention relates to a tape-applying rotary arm head for a tape-lifting machine, comprising a central shaft assembly and cutter head assemblies mounted on both sides of the central shaft assembly. The central shaft assembly includes a central key shaft, a mounting plate, a fixing plate, clamps, a clamp cam frame, and a first spring. Two clamps are symmetrically arranged on both sides of the mounting plate. Each clamp consists of two identical and oppositely arranged clamps, clamp bases, clamp pads, mounting blocks, and mounting pins. The cutter head assemblies include a cutter head mounting block, a guide block, a cutter holder, a cutter, a tape-lifting support plate, a roller shaft, a guide rod, a second spring, and a first deep groove ball bearing. This invention, acting as a driven shaft, tracks the movement of the motor shaft of the outlet conveyor device according to a pre-set cam curve using electronic cam interpolation. When the outlet conveyor travels a distance equal to the length of one product, the machine head rotates synchronously by 180°, improving production efficiency while effectively reducing labor intensity.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and more specifically to a tape-applying rotary arm head for a strapping machine. Background Technology

[0002] A carrying strap applicator is a device that automatically applies carrying straps to packaging materials and individual products. It has advantages such as compact structure, safe and reliable strap application and repair, and simple maintenance.

[0003] During the tape application and feeding process, a tape application mechanism is required. The tape application mechanism mainly consists of a tape application cantilever head and a tape feeding device. The tape application cantilever head is the key mechanism for applying the tape to the lifting belt. Every time the tape application cantilever (head) moves 180°, the tape feeding device motor follows the tape application cantilever head in a cam-synchronous manner according to the set cam curve to feed out a lifting belt.

[0004] Currently, the product labeling action in tape-applying machines is often unstable, the overall operation of the equipment is not smooth, and the production efficiency is not high. At the same time, the completeness of the labeling action directly affects the labor intensity of subsequent workers. Furthermore, the traditional labeling mechanism is inconvenient to operate, and maintenance and safety cannot be effectively guaranteed. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned defects and provide a tape-applying rotary arm head for a tape lifting machine that is simple to operate and can effectively improve the accuracy of tape application.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] A tape-applying rotary arm head for a tape-lifting machine, characterized in that it includes a central shaft assembly and cutter head assemblies mounted on both sides of the central shaft assembly. The central shaft assembly includes a central key shaft, a mounting plate, a fixing plate, clamps, a clamp cam frame, and a first spring. The central key shaft passes through the middle of the mounting plate, and the fixing plate is located at the upper end of the mounting plate. Two clamps are symmetrically arranged on both sides of the mounting plate. Each clamp consists of two identical and oppositely arranged clamping bodies, clamping body bases, clamping body pads, mounting blocks, and mounting pins. The bottom ends of the two oppositely arranged clamping bodies are respectively mounted on both ends of the mounting plate via clamping body bases. Mounting blocks are provided above the top of each clamping body, and the clamping body pads are fixed to one side of the mounting blocks via mounting pins. The two oppositely arranged clamping bodies are connected by clamps. A cam frame is inserted, and a first spring is sleeved on the clamp cam frame. The cutter head assembly includes a cutter head mounting block, a guide block, a cutter holder, a cutting blade, a lifting strap support plate, a roller shaft, a guide rod, a second spring, and a first deep groove ball bearing. The cutter holder has a stepped platform structure. The front end face of the cutter head mounting block is in contact with the higher rear end face of the cutter holder. The cutting blade is mounted on the lower front end face of the cutter holder. Guide blocks are provided on both sides of the cutter head mounting block. The front end of each guide block is fixedly connected to the rear end face of the cutter holder. One end of the guide rod is inserted through the rear end of the guide block, and the other end is connected to the clamp base. The second spring is sleeved on the guide rod. The roller shaft is inserted through both sides of the cutter holder. A first deep groove ball bearing is provided at both ends of the roller shaft. The lifting strap support plate is fixed below the cutter holder.

[0008] As a preferred technical solution, a buffer pad is also included, with buffer pads provided above the tool holder and below the lifting strap support plate.

[0009] As a preferred technical solution, the connection end between the top and middle of the clamp body is provided with a 30°-45° chamfer.

[0010] As a preferred technical solution, it also includes a chamfered flat washer and a third deep groove ball bearing. The third deep groove ball bearing is located at both ends of the clamp cam frame, and the chamfered flat washer is located at the contact end between the clamp cam frame and the third deep groove ball bearing.

[0011] As a preferred technical solution, the clamp body, the clamp body base, and the opposite guide rod are connected in series by a pin, and a second deep groove ball bearing is sleeved on the pin.

[0012] As a preferred technical solution, it also includes a shaft elastic retaining ring, which is disposed on the inner side of the connection end between the deep groove ball bearing and the support roller shaft.

[0013] As a preferred technical solution, a sliding bearing is also included, which is sleeved on the guide rod inside the guide block, with its front end face connected to the second spring and its rear end face in contact with the inner wall surface of the guide block.

[0014] The beneficial effects of this invention are: stable and reliable operating speed; it can rotate 180° according to the set tape application speed curve within a unit time; the machine head, as the driven axis, tracks the motor shaft movement of the outlet conveyor device according to the set cam curve using electronic cam interpolation; when the outlet conveyor device travels a distance of one product length, the machine head also rotates 180° synchronously; thus improving production efficiency while effectively reducing labor intensity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a tape-applying rotary arm head for a tape-lifting machine according to the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the central axis assembly;

[0017] Figure 3 for Figure 1 A schematic diagram of the middle cutter head assembly.

[0018] In the diagram: 10-Central shaft assembly, 11-Central key shaft, 12-Mounting plate, 13-Fixing plate, 14-Clamping clamp, 14-1-Clamping body, 14-2-Clamping body base, 14-3-Clamping body pad, 14-4-Mounting block, 14-5-Mounting pin, 15-Clamping clamp cam frame, 16-First spring, 17-Chamfered flat washer, 20-Cutter head assembly, 21-Cutter head mounting block, 22-Guide block, 23-Cutter holder, 24-Cutter, 25-Lifting strap support plate, 26-Roller shaft, 27-Guide rod, 28-Second spring, 29-First deep groove ball bearing, 30-Buffer pad, 40-Pin, 50-Second deep groove ball bearing, 60-Shaft elastic retaining ring, 70-Sliding bearing, 80-Third deep groove ball bearing. Detailed Implementation

[0019] To provide a better understanding of the structural features and effects achieved by the present invention, a detailed description is provided below, accompanied by preferred embodiments and accompanying drawings:

[0020] like Figures 1-3As shown, a tape-applying rotary arm head for a tape-lifting machine includes a central shaft assembly 10 and cutter head assemblies 20 mounted on both sides of the central shaft assembly 10. The central shaft assembly 10 includes a central key shaft 11, a mounting plate 12, a fixing plate 13, clamps 14, a clamp cam frame 15, and a first spring 16. The central key shaft 11 passes through the middle of the mounting plate 12, the fixing plate 13 is located at the upper end of the mounting plate 12, and there are two clamps 14, which are symmetrically arranged on both sides of the mounting plate 12. The clamp 14 includes two identical and oppositely arranged clamping bodies 14-1, clamping body bases 14-2, clamping body pads 14-3, mounting blocks 14-4, and mounting pins 14-5. The bottom ends of the two oppositely arranged clamping bodies 14-1 are respectively mounted on both ends of the mounting plate 12 via the clamping body bases 14-2. Mounting blocks 14-4 are provided above the top of each clamping body 14-1. The clamping body pads 14-3 are fixed to one side of the mounting blocks 14-4 via the mounting pins 14-5. The clamping bodies 14-1 are connected by a clamping cam frame 15. A first spring 16 is sleeved on the clamping cam frame 15. The cutter head assembly 20 includes a cutter head mounting block 21, a guide block 22, a cutter holder 23, a cutter 24, a lifting strap support plate 25, a support roller shaft 26, a guide rod 27, a second spring 28, and a first deep groove ball bearing 29. The cutter holder 23 has a stepped platform structure. The front end face of the cutter head mounting block 21 contacts and connects with the higher rear end face of the cutter holder 23. The cutter 24 is mounted on... On the lower front end face of the tool holder 23, guide blocks 22 are provided on both sides of the tool head mounting block 21. The front end of each guide block 22 is fixedly connected to the rear end face of the tool holder 23. One end of the guide rod 27 passes through the rear end of the guide block 22 and the other end is connected to the clamping base 14-2. The second spring 28 is sleeved on the guide rod 27. The support roller shaft 26 passes through both sides of the tool holder. The first deep groove ball bearing 29 is provided at both ends of the support roller shaft 26. The lifting support plate 25 is fixedly installed below the tool holder 23.

[0021] In this embodiment, a buffer pad 30 is also included, with buffer pads 30 provided above the knife holder 23 and below the lifting strap support plate 25.

[0022] In this embodiment, the connecting end of the top and middle of the clamp 14-1 is provided with a 30°-45° chamfer.

[0023] In this embodiment, a chamfered flat washer 17 and a third deep groove ball bearing 80 are also included. The third deep groove ball bearing 80 is disposed at both ends of the clamp cam frame 15, and the chamfered flat washer 17 is disposed at the contact end between the clamp cam frame 15 and the third deep groove ball bearing 80.

[0024] In this embodiment, the clamp 14-1, the clamp base 14-2, and the opposite guide rod 27 are connected in series by a pin 40, and a second deep groove ball bearing 50 is sleeved on the pin 40.

[0025] In this embodiment, a shaft elastic retaining ring 60 is also included, which is disposed inside the connection end between the first deep groove ball bearing 29 and the support roller shaft 26.

[0026] In this embodiment, a sliding bearing 70 is also included. The sliding bearing 70 is sleeved on the guide rod 27 inside the guide block 22. Its front end face is connected to the second spring 28, and its rear end face is in contact with the inner wall surface of the guide block 22.

[0027] In this embodiment, the machine head is initially perpendicular to the conveying device. During rotation, the state of the clamp 14 is controlled by the third deep groove ball bearing 80. During tightening, the third deep groove ball bearing 80 adjusts the state of the clamp 14 by controlling the contraction of the first spring 16. The left and right clamps of the central shaft assembly 10 are in a clamping-releasing-clamping state and a releasing-clamping-releasing state, respectively. The extension and retraction of the cutter 24 are controlled by the first deep groove ball bearing 29. In each operating cycle, the cutter 24 extends once at a corresponding preset position to cut the conveyor belt. By rotating 180° according to the set tape-applying speed curve within a unit time, the machine head, as the driven shaft, tracks the motor shaft movement of the outlet conveyor device according to the set cam curve using electronic cam interpolation. When the outlet conveyor device travels a distance of one product length, the machine head also rotates 180° synchronously. This improves production efficiency while effectively reducing labor intensity.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A tape-applying rotary arm head for a tape-lifting machine, characterized in that, The utility model provides a center shaft assembly and the cutter head assembly installed on both sides of center shaft assembly, the center shaft assembly includes center key shaft, installation board, fixed plate, clamp, clamp cam frame and first spring, the center key shaft passes the middle part of installation board, the fixed plate is established in the upper end of installation board, the number of clamp is 2, and the two sides of installation board are established in the two sides of mutually opposite symmetry, the clamp is by two same and opposite setting's clamping body, clamping body base, clamping body cushion block, mounting block and mounting pin constitute, two opposite setting's clamping body bottom end is installed respectively in the both ends of installation board through clamping body base, the top of clamping body is equipped with mounting block above, clamping body cushion block is fixed through mounting pin in one side of mounting block, two opposite setting's clamping body is connected through clamp cam frame, and first spring is sleeved on the clamp cam frame, the cutter head assembly includes cutter head mounting block, guide block, tool rest, cutting knife, carrying belt support plate, supporting wheel shaft, guide rod, second spring and first deep groove ball sliding bearing, the tool rest is the ladder-like mesa structure, the front end surface of cutter head mounting block is connected with the high-order rear end surface of tool rest, the cutting knife is installed on the low-order front end surface of tool rest, and the guide block is equipped on both sides of cutter head mounting block, and the front end of each guide block is fixedly connected with the rear end surface of tool rest, one end of guide rod is connected with the rear end of guide block, and the other end is connected with clamping body base, second spring is sleeved on guide rod, supporting wheel shaft is passed through both sides of tool rest, first deep groove ball bearing is arranged on both ends of supporting wheel shaft, and carrying belt support plate is fixedly arranged below tool rest.

2. The tape applying arm head for a tape applying machine according to claim 1, characterized in that: Still include buffer pad, and the upper side of tool rest and the lower side of carrying belt support plate are equipped with buffer pad.

3. The tape applying arm head of claim 1, wherein: The connecting end of the top and middle part of the clamping body is provided with a 30-45 degree chamfer.

4. The tape applying arm head of claim 1, wherein: It also includes a chamfer type flat washer and a third deep groove ball bearing, the third deep groove ball bearing is arranged at both ends of the clamp cam frame, and the chamfer type flat washer is arranged at the contact end of the clamp cam frame and the third deep groove ball bearing.

5. The tape applying arm head of claim 1, wherein: The clamping body, clamping body base and opposite guide rod are connected through a pin shaft, and a second deep groove ball bearing is sleeved on the pin shaft.

6. The tape applying arm head of claim 1, wherein: It also includes a shaft elastic retainer, which is arranged inside the connecting end of the deep groove ball bearing and the supporting wheel shaft.

7. The tape applying arm head of claim 1, wherein: It also includes a sliding bearing, which is sleeved on the guide rod in the guide block, and the front end surface thereof is connected with the second spring, and the rear end surface thereof is connected with the inner wall surface of the guide block.

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