Picture frame corner nailing machine
By introducing a cylinder-driven nailing mechanism and nail magazine assembly into the corner nailing machine for picture frames, the problem of manual bending over to install nails has been solved, realizing automated corner nailing and improving nailing efficiency and quantity.
Patent Information
- Application Number
- CN202520378028.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing frame corner nailing machines require manual bending over to nail the frames, which involves a small number of nails and frequent nailing, making operation inconvenient.
A corner nailing machine for picture frames was designed, which adopts a cylinder-driven nailing mechanism, combined with a nail magazine assembly and a corner nail guide block, to realize the automatic vertical guidance and pushing of the corner nails. Through the cooperation of the push block and the spring, the corner nails are continuously moved into the corner nail slot, reducing manual operation.
It eliminates the need to bend over to install nails, increases the amount of nails installed at once, reduces the frequency of nailing, and improves nailing efficiency.
Smart Images

Figure CN223863953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of picture frame processing equipment, specifically a picture frame corner nailing machine. Background Technology
[0002] In the assembly of various angle joints such as picture frames, mirror frames, cabinets, and wooden door trim, corner nailing machines are usually required to nail corner nails into the joints to fix two adjacent frame strips. The corner nailing machine structure adopted by our company is shown in application number 202320302477X, which mainly includes an operating table, a positioning device, and a fastening device; the operating table is provided with corner nail slots; a nail gun is provided below the operating table; the nail gun nozzle is directly opposite the corner nail slot.
[0003] In actual use, this type of nail gun requires manual bending and crawling under the operating table to install nails, and the number of nails installed each time is small, requiring frequent nailing, which is very troublesome. Our company has modified the existing equipment. Utility Model Content
[0004] The purpose of this utility model is to provide a picture frame corner nailing machine to facilitate nailing.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A corner nailing machine for picture frames includes an operating table, a positioning device, and a fastening device. The operating table surface is provided with a corner nail slot; a nail-shooting mechanism is provided below the operating table surface; the nail outlet of the nail-shooting mechanism is directly opposite the corner nail slot.
[0007] The nail-shooting mechanism includes a cylinder disposed below the operating table, and a push rod is mounted on the top of the piston rod of the cylinder. The top of the push rod can enter and exit the corner nail slot.
[0008] It also includes a staple cartridge assembly and a corner staple guide block respectively disposed on opposite sides of the ejector pin rod. The staple cartridge assembly is used to store corner staples, and the corner staple guide block is used to provide vertical guidance for the corner staples.
[0009] The staple cartridge assembly includes a cartridge shell with an inner compartment that is open at the top and front end. The main body of the staple core is placed inside the inner compartment, and the top of the staple core is connected to the operating table. The staple core and the inner wall of the inner compartment are provided with a channel for the corner staple to pass through, so that the corner staple continuously moves into the corner staple slot.
[0010] A channel is provided between the rear end of the nail core and the corner nail guide block for a corner nail to be ejected.
[0011] The work surface is also provided with a slide groove that communicates with the corner nail slot. A push block is provided in the slide groove. The push block slides back and forth in the slide groove. A spring is provided at one end of the push block away from the corner nail slot. The other end of the spring is connected to the slide groove.
[0012] The other end of the pusher block abuts against the row of corner nails, pushing the corner nails continuously towards the corner nail slot.
[0013] Furthermore, the corner nail guide block has a corner nail guide groove on the side near the corner nail slot.
[0014] Furthermore, the top of the push block is provided with a short horizontal plate that is attached to the operating table surface.
[0015] Furthermore, the positioning device is provided with a notch to avoid the short horizontal plate.
[0016] The beneficial effects of this utility model are:
[0017] The advantage is that it eliminates the need to bend over to install nails and allows for a large amount of nails to be installed at once, reducing the frequency of nailing. Attached Figure Description
[0018] Figure 1 This is a perspective view of the present utility model;
[0019] Figure 2 This is a schematic diagram of the present invention from an upward angle;
[0020] Figure 3 for Figure 1 A partial schematic diagram;
[0021] Figure 4 This is a schematic diagram of the nail-shooting mechanism of this utility model;
[0022] Figure 5 This is a side view of the nail-shooting mechanism of this utility model;
[0023] Figure 6 This is an internal view of the nail cartridge of the nail-shooting mechanism of this utility model.
[0024] In the picture:
[0025] 1-Operating table, 2-Positioning device, 3-Fasting device, 4-Nail shooting mechanism;
[0026] 1.1 - Work surface;
[0027] 1.1a - Corner nail groove, 1.1b - Slide groove;
[0028] 4.1-Cylinder, 4.2-Pin cartridge assembly, 4.3-Corner pin, 4.4-Corner pin guide block;
[0029] 4.1.1 - Ejector pin rod;
[0030] 4.2.1 - Housing shell, 4.2.2 - Nail core, 4.2.3 - Push block, 4.2.4 - Spring;
[0031] 4.2.1a - Inner Warehouse;
[0032] 4.4a - Angle nail guide groove. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Please see Figures 1 to 6 As shown, the present invention provides a technical solution: a picture frame corner nailing machine, including an operating table 1, a positioning device 2 and a fastening device 3, wherein the positioning device 2 and the fastening device 3 are shown in reference application number 202320302477X;
[0035] Please see Figure 1 The positioning device 2 includes a front stop and an L-shaped rear stop, with the rear end of the front stop being a convex right angle.
[0036] The operating table 1 has a corner nail slot 1.1a on its operating surface 1.1; a nail-shooting mechanism 4 is provided below the operating table 1.1; the nail outlet of the nail-shooting mechanism 4 is directly opposite the corner nail slot 1.1a.
[0037] The nail-shooting mechanism 4 includes a cylinder 4.1 disposed below the operating table 1.1, and a push pin rod 4.1.1 mounted on the top of the piston rod of the cylinder 4.1. The top of the push pin rod 4.1.1 can enter and exit the corner nail slot 1.1a;
[0038] It also includes a staple cartridge assembly 4.2 and a corner staple guide block 4.4 respectively disposed on opposite sides of the ejector pin rod 4.1.1. The staple cartridge assembly 4.2 is used to store corner staples 4.3, and the corner staple guide block 4.4 is used to provide vertical guidance for the corner staples 4.3.
[0039] The staple cartridge assembly 4.2 includes a cartridge shell 4.2.1, which has an inner compartment 4.2.1a that is open at both the top and front ends. The main body of the staple core 4.2.2 is placed inside the inner compartment 4.2.1a, and the top of the staple core 4.2.2 is connected to the operating table 1.1 (reference) by screws. Figure 3The inner walls of the staple core 4.2.2 and the inner compartment 4.2.1a are provided with channels for the corner staples 4.3 to pass through, so that the corner staples 4.3 move continuously into the corner staple slot 1.1a. The corner staples 4.3 shown in the figure are U-shaped and are shipped in rows, similar to common staples. The corner staples 4.3 are also V-shaped. The shape of the corner staples 4.3 is not limited here.
[0040] A channel (i.e., the nail outlet mentioned above) is left between the rear end of the nail core 4.2.2 and the corner nail guide block 4.4 for a corner nail 4.3 to be ejected.
[0041] The work surface 1.1 is also provided with a slide groove 1.1b that communicates with the corner nail groove 1.1a. A push block 4.2.3 is provided in the slide groove 1.1b. The push block 4.2.3 slides back and forth in the slide groove 1.1b. A spring 4.2.4 is provided at the end of the push block 4.2.3 away from the corner nail groove 1.1a. The other end of the spring 4.2.4 is connected to the slide groove 1.1b.
[0042] The other end of the pusher 4.2.4 abuts against the row of corner nails 4.3 (see reference). Figure 6 This pushes the corner nail 4.3 to move continuously into the corner nail slot 1.1a.
[0043] During nailing, simply push the row of corner nails 4.3 backward from the front end of the nail core 4.2.2, while simultaneously lifting the push block 4.2.3 and pulling it backward. The nail core 4.2.2 continues to move backward. A certain tool can be used to push the row of corner nails 4.3 backward, and then the push block 4.2.3 abuts against the front end of the row of nail cores 4.2.2. The number of nails installed depends on the position of the push block 4.2.3. Due to the use of an external casing 4.2.1, the nailing capacity is greatly increased, allowing for a large number of nails to be installed at once, reducing the nailing frequency. Furthermore, nailing does not require bending over and crawling under the worktable, making nailing convenient.
[0044] For better guidance, please refer to Figure 4 and Figure 6 The corner nail guide block 4.4 has a corner nail guide groove 4.4a on the side near the corner nail groove 1.1a.
[0045] To facilitate lifting the push block 4.2.3, the top of the push block 4.2.3 is provided with a short horizontal plate that aligns with the operating table surface 1.1, for reference. Figure 3 .
[0046] In a further embodiment, the front stop of the positioning device 2 is provided with a notch to avoid the short horizontal plate.
[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A frame corner-pinning machine, comprising an operating table, a positioning device, and a fastening device, characterized in that, The operating table surface is provided with a corner nail slot; a nail-shooting mechanism is provided below the operating table surface; the nail outlet of the nail-shooting mechanism is directly opposite the corner nail slot; The nail-shooting mechanism includes a cylinder disposed below the operating table, and a push rod is mounted on the top of the piston rod of the cylinder. The top of the push rod can enter and exit the corner nail slot. It also includes a staple cartridge assembly and a corner staple guide block respectively disposed on opposite sides of the ejector pin rod. The staple cartridge assembly is used to store corner staples, and the corner staple guide block is used to provide vertical guidance for the corner staples. The staple cartridge assembly includes a cartridge shell with an inner compartment that is open at the top and front end. The main body of the staple core is placed inside the inner compartment, and the top of the staple core is connected to the operating table. The staple core and the inner wall of the inner compartment are provided with a channel for the corner staple to pass through, so that the corner staple continuously moves into the corner staple slot. A channel is provided between the rear end of the nail core and the corner nail guide block for a corner nail to be ejected. The work surface is also provided with a slide groove that communicates with the corner nail slot. A push block is provided in the slide groove. The push block slides back and forth in the slide groove. A spring is provided at one end of the push block away from the corner nail slot. The other end of the spring is connected to the slide groove. The other end of the pusher block abuts against the row of corner nails, pushing the corner nails continuously towards the corner nail slot.
2. A picture frame corner nailing machine according to claim 1, characterized in that, The corner nail guide block has a corner nail guide groove on the side near the corner nail slot.
3. A picture frame corner nailing machine according to claim 2, characterized in that, The top of the push block is provided with a short horizontal plate that is attached to the operating table surface.
4. A picture frame corner nailing machine according to claim 3, characterized in that, The positioning device has a notch to avoid the short horizontal plate.