A precision waste cleaning device for a die cutter
By setting a rack and slot structure on the inner side of the timing belt of the die-cutting machine and embedding a waste removal module, the problems of low precision and cumbersome operation of traditional waste removal devices are solved, realizing the possibility of high-precision waste removal and automated plate loading.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TAIHUI PACKING CO LTD
- Filing Date
- 2024-03-26
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional waste removal devices suffer from low precision and cumbersome operation on die-cutting machines, which affects the efficiency of automated production.
A rack and slots are provided on the inner side of the synchronous belt. The rack has slots at equal intervals, and a waste removal module is embedded in the slots. The waste removal module includes a waste removal base and a waste removal foot. The waste removal needle protrudes out of the outer side of the synchronous belt through the foot hole. The waste removal base has the same cross-section as the rack to improve stability.
It improves the accuracy of waste removal, enhances stability, simplifies the operation process, makes automatic plate loading possible, and improves production efficiency.
Smart Images

Figure CN224476278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging paperboard processing technology, specifically to a precision waste removal device for die-cutting machines. Background Technology
[0002] Cardboard boxes and cartons are used in large quantities in daily life, and their processing requires waste removal. Currently, traditional waste removal methods are no longer suitable for modern production. For example, Chinese Patent Publication No. CN218614413U describes a waste removal device for cardboard die-cutting, including a frame with a support shaft and a power shaft. Several sets of support plates are connected between the support shaft and the power shaft, and a synchronous belt is located on one side of each support plate. Several sets of waste removal needles are installed on the synchronous belt. This device removes all waste at once by pulling down the needles, improving waste removal efficiency and saving labor costs. While this device works well in production, it still suffers from low precision. For instance, if the waste removal needles on the synchronous belt are too large, it will affect the waste removal accuracy; if they are too small, the belt will not be able to hold them properly. Although it can operate and achieve waste removal through differential adjustment, the operation is too cumbersome and not conducive to automated production. Utility Model Content
[0003] The present invention aims to solve the above-mentioned problems by providing a precision waste removal device for needles used in die-cutting machines.
[0004] This utility model is achieved through the following technical solution: a precision waste removal device for a die-cutting machine, comprising a timing belt, a plurality of racks on the inner side of the timing belt, and a tooth groove formed between adjacent racks. The timing belt meshes with a transmission gear through the tooth groove. The device is characterized in that a plurality of slots are provided at equal intervals on each rack, and a waste removal module is provided in the slot. The waste removal module includes a waste removal base and a plurality of waste removal feet installed on the waste removal base. The waste removal base is embedded in the slot, and the slot has foot holes. A plurality of waste removal needles are provided on the waste removal feet, and the waste removal needles protrude through the foot holes and extend outward from the outer side of the timing belt.
[0005] Furthermore, the longitudinal section of the waste removal base has the same shape as the longitudinal section of the rack.
[0006] Furthermore, the waste removal module is provided with 3 sets of waste removal feet, and each set of waste removal feet is provided with up to 3 waste removal needles.
[0007] Furthermore, the waste removal module adopts a 3-pin design with 1 to 9 pins.
[0008] The beneficial effects of this utility model are: by opening a slot on the protruding toothed rack on the inner side of the synchronous belt, the waste removal module is clamped in the slot, and the waste removal needle penetrates the synchronous belt through the foot hole and acts on the waste paper of the die-cut cardboard.
[0009] This invention utilizes the dense arrangement of waste removal needles to improve waste removal accuracy. At the same time, the waste removal base is designed as a trapezoid with the same cross-section as the rack, so that the waste removal base is firmly clamped in the slot, improving the stability of the structure and avoiding the problem of small waste removal needles not being able to be held.
[0010] This invention not only improves the accuracy of waste removal but also makes automatic plate loading possible. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a side view of the present invention;
[0013] Figure 3 This is a front view schematic diagram of the present invention;
[0014] Figure 4 This is a schematic diagram of the synchronous belt structure of this utility model;
[0015] Figure 5 This is a top view of the synchronous belt of this utility model;
[0016] Figure 6 This is a bottom-view schematic diagram of the synchronous belt of this utility model;
[0017] Figure 7 This is a schematic diagram of the waste removal module structure of this utility model;
[0018] Figure 8 Other design structural diagrams of the waste removal module of this utility model;
[0019] Figure 9 This is a coding table for the waste removal needle of this utility model;
[0020] Figure 10 This is a schematic diagram of the overall structure of the synchronous belt of this utility model;
[0021] Figure 11 This is a schematic diagram illustrating the working principle of this utility model;
[0022] In the attached diagram, 1 is the timing belt, 2 is the rack, 3 is the slot, 4 is the waste removal module, 41 is the waste removal base, 42 is the waste removal foot, 43 is the waste removal needle, 5 is the foot hole, 6 is the guide bar, 7 is the upper pressure roller, 8 is the timing pulley, and 9 is the scraper. Detailed Implementation
[0023] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solutions of this utility model are further explained below in conjunction with the embodiments.
[0024] like Figures 1 to 11As shown, a precision waste removal device for a die-cutting machine includes a timing belt with several racks on its inner side. Gear grooves are formed between adjacent racks, and the timing belt meshes with transmission gears through these grooves. The device is characterized in that each rack has several equally spaced slots, and a waste removal module is provided within each slot. The waste removal module includes a waste removal base and several waste removal feet mounted on the base. The base is embedded in the slot, and the slot has foot holes. Several waste removal needles are provided on each of the waste removal feet, protruding through the foot holes onto the outer side of the timing belt.
[0025] In order for the waste removal module to be clamped by the synchronous belt, the longitudinal section of the waste removal base has the same shape as the longitudinal section of the rack.
[0026] To prevent the synchronous belt from shifting during operation, a guide bar is also provided on the central rack of the synchronous belt.
[0027] The aforementioned waste removal module consists of three sets of waste removal pins. Each set of waste removal pins can be configured with up to three waste removal pins, meaning the number of selective waste removal pins on each set can be 0, 1, 2, or 3. The corresponding waste removal module is configured with 1 to 9 waste removal pins, i.e., a 3-pin, 1-pin to 9-pin design, such as... Figure 9 As shown, each waste pin is numbered from 1 to 9. The number of waste pins can be selected according to the needs. For example: in single-pin mode, they are 01, 02, 03 up to 09; in double-pin mode, they are 13, 46, 79, 17, 28, 39, 16, 34, 27, 29, 37, 19; in full-pin mode, they are as follows: Figure 7 As shown, each waste-cleaning foot is equipped with 3 waste-cleaning pins. In use, designs with 1 pin on 3 feet, 2 pins on 3 feet, 3 pins with 3 pins, and 4 pins on 3 feet are preferred. Figure 8 As shown.
[0028] Working principle: Several slots are evenly cut on the synchronous belt. The waste removal base is inserted into the foot holes of the slots of the synchronous belt through the waste removal feet. The tension of the synchronous belt forms a clamping force to clamp the waste removal module on the synchronous belt. Based on the waste paper position on the die-cutting cardboard, the corresponding waste removal position is selected on the synchronous belt. Within this position range, the waste removal module is installed in the slot. Each waste removal module is numbered, stored, and arranged, and then the waste removal operation is carried out.
[0029] like Figure 11 As shown, the rotation of the synchronous wheel drives the synchronous belt to rotate. The die-cut cardboard is between the upper pressure roller and the synchronous belt. The upper pressure roller presses the waste paper area on the die-cut cardboard onto the waste removal needle. The waste removal needle holds the waste paper cardboard and it enters the next process. In this process, the waste paper is scraped off by the scraper.
[0030] Except for the technical features described in the specification, all other technical features are known to those skilled in the art.
Claims
1. A precision waste removal device for needles used in a die-cutting machine, comprising a timing belt, wherein a plurality of racks are provided on the inner side of the timing belt, and tooth grooves are formed between adjacent racks, wherein the timing belt meshes with transmission gears through the tooth grooves, characterized in that... Each rack has several slots at equal intervals. Each slot has a waste removal module. The waste removal module includes a waste removal base and several waste removal feet installed on the waste removal base. The waste removal base is embedded in the slot. The slot has foot holes. Each waste removal foot has several waste removal needles. The waste removal needles pass through the foot holes and protrude from the outside of the timing belt.
2. The precision waste removal device for a die-cutting machine according to claim 1, characterized in that, The longitudinal section of the waste removal base has the same shape as the longitudinal section of the rack.
3. The precision waste removal device for a die-cutting machine according to claim 1, characterized in that, The waste removal module is equipped with 3 sets of waste removal feet, and each set of waste removal feet is equipped with up to 3 waste removal needles.
4. The precision waste removal device for a die-cutting machine according to claim 3, characterized in that, The waste removal module adopts a design with 3 pins and 1 to 9 pins.