Hand stringing bead press device

Abstract

The bead die-casting device for bracelets belongs to the machining industry. It features a horizontal fixed block groove and a fixed block on the front side of the platform. A lower die-casting template is mounted above the fixed block, and an upper die-casting template is mounted above the lower template. A bead groove is located on the lower template, with guide and limiting posts at the front and rear. A platform is connected to one side of the lower die-casting template, and a pusher is located at one end of the platform. Two parallel push rods are mounted on one side of the pusher, and ejector pins are mounted above the push rods. A connecting block is located at the lower end of the pressure rod, which is inserted into a pressure rod guide seat. A connecting rod shaft connects the lower end of the connecting rod to a slot at the upper end of the pressure rod. The upper end of the connecting rod is connected to a cam via a connecting shaft, and a wrench is mounted on one end of the connecting shaft. Because this device uses a wrench-cam connection structure, it saves effort when pressing down on the upper die-casting template. Guide and limiting posts on the upper and lower die-casting templates ensure accurate mold closing. The platform and rod insertion device ensure accurate rod insertion position, saving time and improving production efficiency.

Description

Technical Field

[0001] This utility model belongs to the mechanical processing industry, and specifically relates to a die-casting device for bracelet beads. Background Technology

[0002] Currently, the method for pressing hand-strung beads involves placing the prepared beads on one half of the mold, manually closing the other half of the mold, manually inserting the bead-threading rod, pressing firmly, pulling out the bead-threading rod, opening the half of the mold, and completing the die-casting process. This process requires full contouring and alignment, is time-consuming and labor-intensive, has low efficiency, and makes it difficult to guarantee processing quality. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a simple, easy-to-operate, and highly efficient bead casting device for bracelets.

[0004] The technical solution adopted by this invention to solve the technical problem is as follows: A bead casting device for bracelets includes a platform, columns, a wrench, an upper casting template, and a lower casting template. Its characteristic is that a transverse T-shaped fixing block groove is provided on the front side of the platform. A fixing block with a slider on its side slides and engages in the fixing block groove. The lower casting template is fixedly installed above the fixing block. A semi-circular bead groove is provided at the center of the upper part of the lower casting template. Guide and limiting posts are correspondingly provided on the front and rear sides of the bead groove. A platform is fixedly connected to the left side of the lower casting template. A pusher is provided on the left end face of the platform. Two parallel push rods are installed on the right side of the pusher. A ejector pin is installed between the two parallel push rods. The pusher drives the push rods and ejector pin to move within the platform. An upper casting template is provided above the corresponding lower casting template. The upper die-casting template has a semi-circular bead groove at its center, corresponding to the bead groove at the center of the lower die-casting template. The upper die-casting template is fixed below the connecting block, and the connecting block is fixed at the lower end of the pressure rod. The pressure rod is installed inside the pressure rod guide seat. The lower end of the connecting rod is connected to the notch at the upper end of the pressure rod by a connecting rod shaft. The upper end of the connecting rod is connected to the boss end of the cam by a connecting shaft. The cam and the connecting shaft are coaxially mounted in two parallel connecting shaft and connecting rod seats. The connecting shaft and connecting rod seats are fixed at the upper front end of the column. A wrench is installed on the right end of the connecting shaft using a positioning pin. The pressure rod guide seat is integrally set with the column above the rear end of the platform.

[0005] The beneficial effects of this invention are as follows: the bead die-casting device for bracelets uses a wrench and cam connection structure, which saves effort when pressing down the die-casting template. The guide limit posts on the upper and lower die-casting templates ensure accurate mold closing. The placement table and rod threading device can ensure the accuracy of the rod threading position, save time, and improve production efficiency. Attached Figure Description

[0006] The following description, in conjunction with the accompanying drawings, illustrates specific embodiments.

[0007] Figure 1This is a structural diagram of a bead-casting device for bracelets.

[0008] Figure 2 yes Figure 1 Structure diagram after the system is in working order.

[0009] In the diagram: 1 - Wrench; 2 - Coupling; 3 - Column; 4 - Connecting rod shaft; 5 - Connecting block; 6 - Upper die-casting template; 7 - Lower die-casting template; 7-1 - Guide limit post; 8 - Fixing block; 8-1 - Slider; 9 - Platform; 9-1 - Fixing block groove; 10 - Bead groove; 11 - Push rod; 12 - Pusher; 13 - Ejector pin; 14 - Display platform; 15 - Pressure rod guide seat; 16 - Pressure rod; 17 - Connecting rod; 18 - Connecting shaft; 19 - Cam; 20 - Coupling and connecting rod seat; 21 - Bead hole mold rod; 22 - Bead. Detailed Implementation

[0010] Example, see attached document Figure 1 , 2 The bead casting device for bracelets has a transverse T-shaped fixing block groove 9-1 on the front side of the platform 9. A fixing block 8 with a slider 8-1 on the side slides in the fixing block groove 9-1. A lower casting template 7 is fixedly installed above the fixing block 8. A semi-circular bead groove 10 is provided at the center of the upper part of the lower casting template 7. Guide limiting posts 7-1 are fixedly installed on the front and rear sides of the bead groove 10. A platform 14 is fixedly installed on the left side of the lower casting template 7. Two parallel push rods 11 are movably installed in the inner cavity of the platform 14. A pre-pin 13 is installed above the middle of the two push rods 11. A pusher 12 is fixedly connected to the left end of the push rods 11 and the pre-pin 13. The pre-pin 13 and the push rods 11 are pushed to move in the inner cavity of the platform 14 by the pusher 12. Several bead-piercing die rods 21 are horizontally installed above the platform 14. The bead-piercing die rods 21 are pushed out of the platform 14 by ejector pins 13 and pass through the center of the bead 22, so that the bead 22 has a central hole. Above the lower die-casting template 7, there is a corresponding upper die-casting template 6. At the center of the lower die-casting template 6, there is a semi-circular bead groove corresponding to the bead groove 10 at the center of the lower die-casting template 7. At the position of the corresponding guide limiting post 7-1, there is a guide limiting post groove. The upper die-casting template 6 is fixedly connected to a connecting block 5 of the same size and shape as the lower die-casting template 7. The lower end of the pressure rod 16 is fixedly connected to the center of the upper part of the connecting block 5. The pressure rod 16 is installed in the pressure rod guide seat 15. The pressure rod guide seat 15 and the column 3 are integrally fixed above the rear end of the platform 9. The upper end of the pressure rod 16 is connected to the lower end of the connecting rod 17 via a connecting rod shaft 4. The upper end of the connecting rod 17 is connected to the boss end of the cam 19 via a connecting shaft 18. The cam 19 and the connecting shaft 2 are coaxially mounted in two parallel connecting rod seats 20. The connecting rod seats 20 are fixed to the upper front end of the column 3. A wrench 1 is mounted on the right end of the connecting shaft 2 using a locating pin.

[0011] The working process of this novel bead casting device is as follows: When the bead casting device is working, irregularly shaped beads 22, which are larger than the bead groove 10 and are hand-rolled, are placed into the bead groove 10 on the lower casting template 7. The lever 1 is pulled down, which drives the cam 19 to rotate. The cam 19 drives the connecting rod 17 to drive the pressure rod 16 downward. The pressure rod 16 drives the upper casting template 6 downward to close with the lower casting template 7. The guide limit post 7-1 ensures that the upper casting template 6 and the lower casting template 7 are accurately matched. Before the upper and lower casting templates 6 and 7 are tightly closed, the pusher 12 is pushed to the right.

[0012] Needle 13 pushes the bead-threading mold rod 21 on the platform 14 into the center of the bead 22 on the lower die-casting mold 7. Continue to move the lever 1 downwards, and the upper and lower die-casting molds 6 and 7 close, die-casting the bead into shape.

Claims

1. A bead die-casting device for bracelets, comprising a platform (9), a column (3), a wrench (1), an upper die-casting template (6), and a lower die-casting template (7), characterized in that, A transverse T-shaped fixing block groove (9-1) is provided on the front side of the platform (9). A fixing block (8) with a slider (8-1) on the side is slidably connected in the fixing block groove (9-1). A lower die-casting template (7) is fixedly installed above the fixing block (8). A semi-circular bead groove is provided at the center above the lower die-casting template (7). Guide limit posts (7-1) are provided on the front and rear sides of the bead groove (10). A storage table (14) is fixedly connected to the left side of the lower die-casting template (7). A pusher (12) is provided on the left end face of the storage table (14). Two parallel push rods (11) are installed on the right side of the pusher (12). A ejector pin (13) is installed in the middle above the two parallel push rods (11). The pusher (12) drives the push rods (11) and ejector pin (13) to move in the storage table (14). An upper die-casting template (6) is provided above the lower die-casting template (7). The upper die-casting template (6) has a semi-circular bead groove at its center that corresponds to the bead groove (10) at the center of the lower die-casting template (7). The upper die-casting template (6) is fixed below the connecting block (5). The connecting block (5) is fixed at the lower end of the pressure rod (16). The pressure rod (16) is inserted into the pressure rod guide seat (15). The lower end of the connecting rod (17) is connected to the slot at the upper end of the pressure rod (16) by the connecting rod shaft (4). The upper end of the connecting rod (17) is connected to the boss end of the cam (19) by the connecting shaft (18). The cam (19) and the connecting shaft (2) are coaxially mounted in two parallel connecting shaft and connecting rod seats (20). The connecting shaft and connecting rod seats (20) are fixed at the upper front end of the column (3). A wrench (1) is installed on the right end of the connecting shaft (2) by a positioning pin. The pressure rod guide seat (15) and the column (3) are integrally set above the rear end of the platform (9).

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