Semi-automatic adjusting device for strapping machine
By installing a semi-automatic adjustment device with adjustable rails and electromagnetic switches on the strapping machine, the problem of adaptability of the strapping machine to products of different sizes has been solved, achieving efficient strapping and reducing enterprise costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING KEXIN PRINTING CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-15
AI Technical Summary
Existing strapping machines are prone to causing product deformation when strapping thin products with insufficient rigidity, and special equipment needs to be purchased to adapt to various size requirements, which increases the cost for enterprises.
The semi-automatic adjustment device, including a first adjustment rail, a second adjustment rail, and a third adjustment rail, combined with an electromagnetic switch and a tension spring, enables flexible adjustment of the strapping machine to meet the strapping needs of products of different sizes.
It effectively prevents products from deforming during the bundling process, reduces the cost of purchasing special equipment, improves production efficiency, is easy to operate, and adapts to the bundling needs of products of various sizes.
Smart Images

Figure CN224241350U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of packaging equipment technology, specifically relating to a semi-automatic adjustment device for a strapping machine. Background Technology
[0002] In printing companies, strapping machines are commonly used to bundle rectangular products such as cardboard boxes. Currently, existing strapping machines have limitations when bundling products of different sizes. When the product lacks rigidity, is small, or thin, such as a stack of books, the plastic strapping rope can easily deform during tightening, affecting product quality. However, printing companies frequently need to bundle stacks of books. Furthermore, the sizes of the products to be bundled vary, such as common sizes like 140×270mm, 185×260mm, 210×297mm, and various other specifications, but their thickness is generally thin, resulting in insufficient overall rigidity even for a stack of books. Using common strapping equipment in such cases presents various problems, necessitating the purchase of specialized strapping equipment, increasing company costs. Therefore, to solve this problem, this utility model provides a semi-automatic adjustment device for a strapping machine. Utility Model Content
[0003] The purpose of this invention is to overcome the existing defects and provide a semi-automatic adjustment device for a strapping machine, which can flexibly adapt to the strapping needs of products of various sizes based on the original strapping equipment.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0005] A semi-automatic adjustment device for a strapping machine includes a first adjustment rail and a second adjustment rail arranged relatively horizontally. An electromagnetic switch is movably mounted on the upper end of the first adjustment rail, and a sliding rail box is movably mounted on the upper end of the second adjustment rail. An adjustment rod is movably mounted in the middle of the sliding rail box, and a tension spring is installed between the end of the adjustment rod facing the electromagnetic switch and the outside of the sliding rail box.
[0006] A third adjustment rail is provided at intervals on one side of the first adjustment rail, and a fixed stop bar is provided at intervals on the other side of the third adjustment rail. A movable stop bar is movably installed on the upper end of the third adjustment rail.
[0007] The first, second, and third adjusting rails are all fixed to the upper end of the strapping machine.
[0008] Furthermore, a positioning stop is fixed to the side end of the adjusting rod.
[0009] Based on the above technical solutions, the beneficial effects of this utility model compared with the prior art are as follows:
[0010] This invention effectively prevents product deformation due to stress during the strapping process through the coordinated operation of its components, thus improving the strapping quality. The combination of adjustable rails and movable parts allows the strapping machine to flexibly adapt to the strapping needs of products of various sizes, reducing the cost for companies to purchase dedicated strapping equipment and increasing production efficiency. Furthermore, the control method using electromagnetic switches and tension springs is simple to operate, allowing staff to quickly adjust the equipment to adapt to different production tasks. Attached Figure Description
[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0012] Figure 1 This is a schematic diagram of the structure of a semi-automatic adjustment device for a strapping machine provided in an embodiment of this utility model;
[0013] Figure 2 This is a schematic diagram of the working state of the electromagnetic switch when it is closed, provided in an embodiment of this utility model.
[0014] In the diagram: 1. Electromagnetic switch; 2. First adjusting rail; 3. Second adjusting rail; 4. Third adjusting rail; 5. Sliding rail box; 6. Tension spring; 7. Fixed stop lever; 8. Movable stop lever; 9. Adjusting rod; 10. Positioning stop lever. Detailed Implementation
[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0016] like Figure 1 As shown, this is an embodiment of the semi-automatic adjustment device for a strapping machine provided by the present invention, which includes a first adjustment rail 2, a second adjustment rail 3 and a third adjustment rail 4, all of which are fixed to the upper end of the strapping machine.
[0017] The first adjusting rail 2 and the second adjusting rail 3 are set horizontally relative to each other. An electromagnetic switch 1 is movably installed on the upper end of the first adjusting rail 2. A sliding rail box 5 is movably installed on the upper end of the second adjusting rail 3. An adjusting rod 9 is movably installed in the middle of the sliding rail box 5. A tension spring 6 is installed between the end of the adjusting rod 9 facing the electromagnetic switch 1 and the outside of the sliding rail box 5.
[0018] The third adjusting rail 4 is spaced out on one side of the first adjusting rail 2, and fixed stops 7 are spaced out on the other side of the third adjusting rail 4. A movable stop 8 is movably installed on the upper end of the third adjusting rail 4.
[0019] It should be noted that electromagnetic switch 1 can be a common electromagnetic switch model available on the market, which includes a switching device. When the switch is turned on, the electromagnet generates electromagnetic attraction, which can lift the positioning lever below and control its working state.
[0020] The first adjustment rail 2 provides a lateral translation track for the electromagnetic switch 1, which facilitates the adjustment of the position of the electromagnetic switch 1 on the strapping machine to adapt to different working requirements.
[0021] The second adjusting rail 3 serves as the track for the sliding rail box 5 to move left and right, allowing the sliding rail box 5 to be adjusted in position according to the size of the product to be packaged.
[0022] The third adjusting rail 4 is used for the lateral translation of the movable stop bar 8, so as to meet the adjustment of the position of the movable stop bar 8 when binding different products with different short side dimensions.
[0023] Both the fixed stop bar 7 and the movable stop bar 8 are cylindrical components made of steel, which help to hold the product edges during the binding process and withstand the pressure when the plastic rope is used for binding.
[0024] The adjusting rod 9 can be attracted by the electromagnetic force of the electromagnetic switch 1. When the electromagnetic switch 1 is turned on, the adjusting rod 9 is attracted and moves upward; when the electromagnetic switch 1 is turned off, it moves downward under the tension of the tension spring 6, thereby realizing the change of working position.
[0025] The sliding rail box 5 provides a longitudinal track for the adjusting rod 9, and can also move left and right on the second adjusting rail 3 to adapt to the bundling needs of different products.
[0026] The tension spring 6, through its own tension, pulls the adjusting rod 9 downward after the electromagnetic switch 1 is closed, so that it returns to the initial position or the designated working position.
[0027] Preferably, in this embodiment of the invention, the adjusting rod 9 has a positioning stop 10 fixed to its side end.
[0028] This utility model uses a positioning stop bar 10 to limit the end of the adjusting rod 9 when it is retracted, by cooperating with the outer wall of the sliding rail box 5, so as to prevent it from being retracted into the sliding rail box.
[0029] In use, the first adjusting rail 2, the second adjusting rail 3, and the third adjusting rail 4 are installed at designated positions on the strapping machine, ensuring secure and unobstructed installation, proper connection of the electromagnetic switch 1, appropriate elasticity of the tension spring 6, and smooth movement of the sliding rail box 5. The electromagnetic switch 1 is adjusted to ensure accurate response and movement of the adjusting rod 9 when the switch is turned on and off. Simultaneously, the initial installation positions of the adjusting rod 9 and the sliding rail box 5 on the strapping machine are pre-adjusted according to common product dimensions for easy and quick switching later.
[0030] When bundling products of a certain size, firstly, adjust the movable stop bar 8 left or right using the third adjusting rail 4 according to the product's shorter side dimension. Then, adjust the position of the electromagnetic switch 1 and the sliding rail box 5 using the first adjusting rail 2 and the second adjusting rail 3 according to the longer side dimension. After adjustment, turn on the electromagnetic switch 1, and the adjusting rod 9 moves upward under the action of electromagnetic attraction, as shown... Figure 1 The diagram shows the working state when the electromagnetic switch 1 is turned on. At this time, only the fixed stop lever 7 and the movable stop lever 8 are in contact with the product, and the strapping machine is started to strap the short side of the product. After the short side strapping is completed, the electromagnetic switch 1 is turned off, and the adjusting rod 9 moves downward under the action of the tension spring 6, and is positioned by the positioning stop lever 10. Figure 2 As shown. At this time, under the combined action of the adjusting rod 9 and the fixed stop rod 7, the strapping machine is started to strap the long side of the product. After actual testing, this component can effectively assist the product in bearing force and prevent the product from deforming during the strapping process. Since the subsequent work is repetitive for the same type of product, it can improve quality and efficiency.
[0031] It should be noted that the fixed stop lever 7, the movable stop lever 8, and the adjusting lever 9 are all slightly inserted between the bundled product and the strapping during the bundling process. Therefore, when adjusting the position of the bundled product or removing the bundled product, it is necessary to move it towards the operator's position before performing the relevant operations. When the product specifications change, simply repeat the above adjustments.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A semi-automatic adjustment device for a strapping machine, characterized in that... The semi-automatic adjustment device for the strapping machine includes a first adjustment rail and a second adjustment rail that are set relatively horizontally. An electromagnetic switch is movably installed on the upper end of the first adjustment rail, and a sliding rail box is movably installed on the upper end of the second adjustment rail. An adjustment rod is movably installed in the middle of the sliding rail box, and a tension spring is installed between the end of the adjustment rod facing the electromagnetic switch and the outside of the sliding rail box. A third adjustment rail is provided at intervals on one side of the first adjustment rail, and a fixed stop bar is provided at intervals on the other side of the third adjustment rail. A movable stop bar is movably installed on the upper end of the third adjustment rail. The first, second, and third adjusting rails are all fixed to the upper end of the strapping machine.
2. The semi-automatic adjustment device for a strapping machine according to claim 1, characterized in that... The adjusting rod has a positioning stop fixed to its side end.