Feeding and aligning device of box nailing machine
The design of an inverted L-shaped movable plate and rotating rollers driven by an identification device and an electric telescopic rod solves the problem of low paperboard feeding efficiency, realizes real-time alignment and stable conveying of paperboard on the conveyor belt, and improves the efficiency and quality of carton production.
Patent Information
- Application Number
- CN202520463593.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-17
AI Technical Summary
In existing technologies, the cardboard is intercepted by baffles before alignment, resulting in low cardboard feeding efficiency and affecting carton production efficiency.
The inverted L-shaped movable plate, driven by an identification device and an electric telescopic rod, aligns the cardboard in real time to avoid interception. Combined with the design of rotating rollers and guide plates, it ensures that the cardboard is centered and aligned on the conveyor belt.
It improves paperboard feeding efficiency and production continuity, reduces paperboard friction damage, protects paperboard integrity, and enhances automation level and product quality.
Smart Images

Figure CN223835125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard box production, specifically a feeding and alignment device for a carton nailing machine. Background Technology
[0002] Cardboard boxes are a widely used packaging container, typically made from cardboard or thick paper through die-cutting, folding, and gluing processes. They are lightweight, foldable, easy to carry and store, making them ideal for packaging, transporting, and storing various items. Cardboard boxes can be customized in different sizes, shapes, and strengths to meet the protection needs of different goods. They are commonly used in logistics, e-commerce, and manufacturing, facilitating the flow of goods. At the same time, cardboard boxes are also an environmentally friendly packaging material, recyclable and reusable, reducing environmental pollution. Before entering the stapling machine, the cardboard on the conveyor belt needs to be aligned and straightened by an alignment device.
[0003] For example, authorization announcement number CN213264967U discloses an automatic cardboard box alignment and feeding device, which includes a workbench and multiple sets of conveyor belts. All conveyor belts are mounted on the workbench and have the same conveying direction. A support plate is provided above the workbench along its length. One end of the support plate has an alignment plate in a vertical direction, and the other end has an alignment cylinder. The piston rod of the alignment cylinder is arranged along the length of the support plate, and the end of the piston rod is connected to an alignment slide plate for pushing cardboard on the workbench. The alignment slide plate is arranged vertically. A clamping element for assisting in fixing the cardboard is provided at the top of the workbench away from the support plate. This application uses the reciprocating extension and retraction of the alignment cylinder to drive the alignment slide plate to align and organize the cardboard stacked on the workbench, ensuring that one end of each cardboard abuts against the alignment plate, thus quickly aligning the cardboard and improving cardboard box production efficiency.
[0004] However, the above-mentioned technology uses baffles to intercept the cardboard before aligning it, which cannot align the cardboard during transport, thus affecting the feeding efficiency of the cardboard. Therefore, the market urgently needs to develop a feeding and alignment device for a carton nailing machine to help people solve the existing problems. Utility Model Content
[0005] The purpose of this utility model is to provide a feeding and alignment device for a carton nailing machine, so as to solve the problem mentioned in the background art that the existing technology uses baffles to intercept the cardboard before aligning it, which cannot align the cardboard in the conveying process, thus affecting the feeding efficiency of the cardboard.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding and alignment device for a nailing machine, comprising a conveyor belt, conveyor belt side plates at both ends of the conveyor belt, a C-shaped support frame fixedly connected to the middle of the upper part of the two conveyor belt side plates, an identification device fixedly connected to the middle of the upper inner surface of the C-shaped support frame, an L-shaped fixing plate fixedly connected to one side of the middle of the upper part of the two conveyor belt side plates, an inverted L-shaped movable plate connected to the inner side of the two L-shaped fixing plates, a plurality of rotating rollers rotatably connected at equal intervals to the inner side of the two inverted L-shaped movable plates, and a guide plate rotatably connected to the other side of the middle of the upper part of the two conveyor belt side plates.
[0007] Preferably, an electric telescopic rod is fixedly connected to the middle of the outer end face of each of the two L-shaped fixing plates, and guide tubes are fixedly connected to the front and rear ends of the middle of the outer end face of each of the two L-shaped fixing plates.
[0008] Preferably, a fixing tube is fixedly connected to the middle of the outer end face of each of the two inverted L-shaped movable plates. The telescopic end of the electric telescopic rod passes through the L-shaped fixing plate and is inserted into the fixing tube and fixedly connected to a limiting disc. A spring is provided inside the fixing tube and on one side of the limiting disc.
[0009] Preferably, guide rods are fixedly connected to both ends of the middle of the outer end face of the two inverted L-shaped movable plates, and the two guide rods extend through the inside of the two guide tubes to the outside of the L-shaped fixed plate.
[0010] Preferably, each of the rotating rollers is rotatably connected to a connecting shaft at its center, and each connecting shaft extends from the upper end of an inverted L-shaped movable plate and is fixedly connected to a supporting disc.
[0011] Preferably, a fixed shaft is fixedly connected to one side of the upper surface of each of the two conveyor belt side plates, and a rotating tube is fixedly connected to one end of each of the two guide plates.
[0012] Preferably, the two rotating tubes are respectively fitted onto the outside of the two fixed shafts and then inserted into the internal thread of the fixed shafts through the upper end of the rotating tubes with bolts for fixation.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) In this utility model, by setting an identification device and an inverted L-shaped movable plate driven by an electric telescopic rod, alignment operation can be performed in real time during the paperboard conveying process without intercepting the paperboard, which significantly improves the paperboard feeding efficiency and production continuity.
[0015] (2) In this utility model, multiple rotating rollers are provided on the inner side of the inverted L-shaped movable plate, which can reduce friction with the cardboard during the alignment process and avoid damage to the cardboard surface. At the same time, the spring buffering effect ensures that the applied thrust during the alignment process is moderate, further protecting the integrity of the cardboard.
[0016] (3) In this utility model, the design of the guide plate and guide rod ensures the initial centering of the cardboard on the conveyor belt and the stability of the movement of the inverted L-shaped movable plate, making the alignment process more accurate and reliable, and improving the automation level and product quality of carton production. Attached Figure Description
[0017] Figure 1 This is a front view of a feeding and alignment device for a nailing machine according to the present invention;
[0018] Figure 2 This is a side sectional view of the inverted L-shaped movable plate of this utility model;
[0019] Figure 3 This is a side sectional view of the rotating tube of this utility model;
[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.
[0021] In the diagram: 1. Conveyor belt; 101. Conveyor belt side plate; 102. C-shaped support frame; 103. Identification device; 104. Fixed shaft; 2. L-shaped fixed plate; 201. Electric telescopic rod; 202. Limiting disc; 203. Guide tube; 3. Inverted L-shaped movable plate; 301. Fixed tube; 302. Spring; 303. Guide rod; 4. Rotating roller; 401. Connecting shaft; 402. Support disc; 5. Guide plate; 501. Rotating tube; 502. Bolt. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Please see Figure 1-4This utility model provides an embodiment of a feeding and alignment device for a carton nailing machine, comprising a conveyor belt 1, with conveyor belt side plates 101 at both ends of the conveyor belt 1. A C-shaped support frame 102 is fixedly connected to the upper center of both conveyor belt side plates 101. An identification device 103 is fixedly connected to the center of the upper inner surface of the C-shaped support frame 102. When cardboard moves along one side of the conveyor belt 1, it first passes the lower end of the C-shaped support frame 102. The identification device 103 identifies the cardboard, and the two conveyor belt side plates 101... Each of the two L-shaped fixed plates 2 is fixedly connected to one side of the middle section. An inverted L-shaped movable plate 3 is connected to the inner side of each L-shaped fixed plate 2. Multiple rotating rollers 4 are rotatably connected at equal intervals to the inner side of each inverted L-shaped movable plate 3. A connecting shaft 401 is rotatably connected to the middle of each rotating roller 4. Each connecting shaft 401 extends beyond the upper surface of the inverted L-shaped movable plate 3 and is fixedly connected to a supporting disc 402. An electric telescopic rod 201 is fixedly connected to the middle of the outer end face of each of the two L-shaped fixed plates 2. The front and rear ends of the two L-shaped fixed plates 2 are connected to... Each end of the two inverted L-shaped movable plates 3 is fixedly connected to a guide tube 203. A fixing tube 301 is fixedly connected to the middle of the outer end face of each plate. The telescopic end of the electric telescopic rod 201 passes through the L-shaped fixing plate 2 and inserts into the fixing tube 301, where a limiting disc 202 is fixedly connected. A spring 302 is provided inside the fixing tube 301 and on one side of the limiting disc 202. When the identification device 103 identifies the cardboard, the cardboard continues to move between the two inverted L-shaped movable plates 3, pushing the two inverted L-shaped movable plates 3 respectively via the two electric telescopic rods 201. The relative movement causes multiple rotating rollers 4 on the inner side of the two inverted L-shaped movable plates 3 to contact the front and rear ends of the cardboard respectively. When the electric telescopic rod 201 continues to push, the multiple rotating rollers 4 on the inner side of the two inverted L-shaped movable plates 3 push the front and rear ends of the cardboard to straighten it, so that the cardboard is centered and aligned on the conveyor belt 1, which is convenient for entering the nailing machine for processing. The electric telescopic rod 201 transmits the pushing force to the inverted L-shaped movable plates 3 through the spring 302 to prevent the force when the inverted L-shaped movable plates 3 drive the rotating rollers 4 to contact the cardboard from being too large, which would cause damage to the cardboard.
[0024] Please see Figure 2 and Figure 4 Guide rods 303 are fixedly connected to the front and rear ends of the middle of the outer end face of the two inverted L-shaped movable plates 3. The two guide rods 303 extend through the interior of the two guide tubes 203 to the outside of the L-shaped fixed plate 2. When the inverted L-shaped movable plate 3 moves, it is guided by sliding along the guide tubes 203 through the guide rods 303 to ensure the stability of the movement of the inverted L-shaped movable plate 3.
[0025] Please see Figure 3Guide plates 5 are rotatably connected to the middle of the upper part of the two conveyor belt side plates 101 on the other side. Fixed shafts 104 are fixedly connected to the middle of the upper surface of the two conveyor belt side plates 101 on one side. Rotating tubes 501 are fixedly connected to one end of the two guide plates 5. The two rotating tubes 501 are respectively sleeved on the outside of the two fixed shafts 104 and then inserted into the fixed shafts 104 for threaded connection and fixation after passing through the upper end of the rotating tubes 501 with bolts 502. When the cardboard moves on the conveyor belt 1, it is first guided by the two guide plates 5 to initially center the cardboard.
[0026] Working Principle: During operation, as the cardboard moves on conveyor belt 1, it is initially guided by two guide plates 5 to ensure initial centering on conveyor belt 1, and then identified by the identification device 103 at the lower end of the C-shaped support frame 102. After identification, the cardboard continues to move between the two inverted L-shaped movable plates 3. At this time, the electric telescopic rod 201 is activated, pushing the two inverted L-shaped movable plates 3 to move relative to each other, so that multiple rotating rollers 4 on the inner side of the inverted L-shaped movable plates 3 contact the front and rear ends of the cardboard respectively. As the electric telescopic rod 201 continues to push, the rotating rollers 4 apply a uniform pushing force to the cardboard, aligning it in the center on conveyor belt 1. The spring 302 ensures that the pushing force of the rotating rollers 4 on the cardboard is moderate, avoiding damage to the cardboard due to excessive force. At the same time, the guide rod 303 slides along the guide tube 203 to ensure the stability of the movement of the inverted L-shaped movable plates 3. Finally, the aligned cardboard smoothly enters the stapling machine for subsequent processing, improving feeding efficiency.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A feeding and alignment device for a nailing machine, comprising a conveyor belt (1), characterized in that: The conveyor belt (1) is provided with conveyor belt side plates (101) at both ends. A C-shaped support frame (102) is fixedly connected to the middle of the upper end of the two conveyor belt side plates (101). An identification device (103) is fixedly connected to the middle of the upper surface of the inner side of the C-shaped support frame (102). An L-shaped fixing plate (2) is fixedly connected to one side of the middle of the upper end of the two conveyor belt side plates (101). An inverted L-shaped movable plate (3) is connected to the inner side of the two L-shaped fixing plates (2). Multiple rotating rollers (4) are rotatably connected to the inner side of the two inverted L-shaped movable plates (3) at equal intervals. A guide plate (5) is rotatably connected to the other side of the middle of the upper end of the two conveyor belt side plates (101).
2. The feeding and alignment device for a nailing machine according to claim 1, characterized in that: An electric telescopic rod (201) is fixedly connected to the middle of the outer end face of each of the two L-shaped fixing plates (2), and a guide tube (203) is fixedly connected to the front and rear ends of the middle of the outer end face of each of the two L-shaped fixing plates (2).
3. The feeding and alignment device for a nailing machine according to claim 2, characterized in that: A fixing tube (301) is fixedly connected to the middle of the outer end face of each of the two inverted L-shaped movable plates (3). The telescopic end of the electric telescopic rod (201) passes through the L-shaped fixing plate (2) and is inserted into the fixing tube (301) and fixedly connected to a limiting disc (202). A spring (302) is provided inside the fixing tube (301) and on one side of the limiting disc (202).
4. The feeding and alignment device for a nailing machine according to claim 2, characterized in that: Guide rods (303) are fixedly connected to the front and rear ends of the middle of the outer end face of the two inverted L-shaped movable plates (3). The two guide rods (303) extend through the interior of the two guide tubes (203) to the outside of the L-shaped fixed plate (2).
5. The feeding and alignment device for a nailing machine according to claim 1, characterized in that: Each of the rotating rollers (4) is rotatably connected to a connecting shaft (401) in the middle. Each of the connecting shafts (401) extends from the upper end of an inverted L-shaped movable plate (3) and is fixedly connected to a supporting disc (402).
6. The feeding and alignment device for a nailing machine according to claim 1, characterized in that: A fixed shaft (104) is fixedly connected to one side of the upper end face of each of the two conveyor belt side plates (101), and a rotating tube (501) is fixedly connected to one end of each of the two guide plates (5).
7. The feeding and alignment device for a nailing machine according to claim 6, characterized in that: The two rotating tubes (501) are respectively fitted onto the outside of the two fixed shafts (104) and then inserted into the fixed shafts (104) for threaded connection and fixation after passing through the upper end of the rotating tubes (501) with bolts (502).