An injection molding mechanism for a printer cover that is easy to disassemble and assemble

Abstract

The present invention proposes an injection molding mechanism for a printer cover that is easy to disassemble and assemble, comprising a base, a first support seat mounted on one end of the top of the base, a second support seat mounted on the other end, support frames mounted vertically on both sides of the tops of the second support seat and the first support seat, a bearing plate mounted above the top of the first support seat, the bearing plate being arranged perpendicular to the base and fixedly connected to the support frames on both sides, an extrusion hydraulic cylinder mounted vertically in the middle of the bearing plate, a first mounting plate mounted vertically on one end of the extrusion hydraulic cylinder close to the second support seat, a forming punch mounted in the middle of the other side of the first mounting plate, and connecting rings mounted on both sides of the first mounting plate; a support frame and the first mounting plate are arranged correspondingly, and the support frame is mounted on the side of the support frame close to the first support seat. During demolding, the pull rope drives the ejection mold forward to eject the molded part, which is simple to operate and easy to use.

Description

Technical Field

[0001] The invention belongs to the technical field of forming molds, and in particular relates to an injection molding mechanism for a printer cover plate which is easy to assemble and disassemble. Background Art

[0002] Injection molding is a widely used process due to its low cost, short cycle time, simple molding process, and ease of forming complex shapes. However, manual removal is often used during injection molding, which is inefficient, labor-intensive, and slows production. To address this issue, we propose an injection molding mechanism for printer covers that allows for easy assembly and disassembly. Summary of the Invention

[0003] In order to solve the above deficiencies in the prior art, the present invention provides an injection molding mechanism for a printer cover that is easy to assemble and disassemble.

[0004] The technical solution of the present invention is achieved as follows: an injection molding mechanism for a printer cover that is easy to disassemble and assemble comprises a base, a first support base being mounted on one end of the top of the base, a second support base being mounted on the other end, support frames being vertically mounted on both sides of the tops of the second support base and the first support base, a carrying plate being provided above the top of the first support base, the carrying plate being arranged perpendicular to the base and fixedly connected to the support frames on both sides, an extrusion hydraulic cylinder being vertically mounted in the middle of the carrying plate, a first mounting plate being vertically mounted on one end of the extrusion hydraulic cylinder close to the second support base, a forming punch being mounted in the middle of the other side of the first mounting plate, and connecting rings being mounted on both sides of the first mounting plate;

[0005] A support frame is provided above the second support seat, the support frame and the first mounting plate are correspondingly arranged, and the support frame is installed on a side of the support frame close to the first support seat, the support frame and the first mounting plate are parallel, and a forming die is fixedly installed in the support frame. When the extrusion hydraulic cylinder is extended, the forming punch is placed in the forming die;

[0006] The side of the forming die is provided with two symmetrically arranged large ejection outlets, each of which accommodates an ejection mold. A second guide shaft is vertically connected to the side of the ejection mold away from the first mounting plate. The second guide shaft is arranged to pass through the first U-shaped frame, and the two ends of the first U-shaped frame are respectively connected and fixed between the support frame; wherein, the second guide shaft extends to the outside of the first U-shaped frame, and a return spring is sleeved on the end of the second guide shaft; the end of the second guide shaft is connected and fixed by a strip seat, and the two ends of the return spring are respectively in elastic contact with the strip seat and the first U-shaped frame;

[0007] Connecting holes are respectively provided at both ends of the strip seat, a draw rope is connected in the connecting holes, and the other ends of the draw rope are respectively installed in the connecting rings.

[0008] Preferably, first guide shafts are vertically mounted on the four corners of the first mounting plate, first guide tubes are sleeved on the first guide shafts, and the first guide tubes are respectively passed through and fixed on the bearing plate.

[0009] Preferably, a second guide tube is sleeved on the second guide shaft, and the second guide tube is fixed on the first U-shaped frame. A limiting ring is coaxially fixed on one end of the second guide shaft close to the ejection mold. When the ejection mold is located in the forming die, the limiting ring and the second guide tube are offset against each other.

[0010] Preferably, sealing covers are provided on the upper and lower sides of the first U-shaped frame, the edges of the sealing covers are fixedly connected to the supporting frames respectively, exhaust ports are opened on the tops of the sealing covers, and an exhaust fan is installed in each exhaust port.

[0011] Preferably, a second U-shaped frame is provided above the molding die, the top side of the second U-shaped frame is connected to a mounting seat, an injection hydraulic cylinder is installed vertically downward in the mounting seat, the bottom of the injection hydraulic cylinder is connected to the mounting frame, the mounting frame is vertically installed with an injection head, and the top of the injection head is connected to the material guide pipe.

[0012] Preferably, a blanking plate is provided below the support frame, an edge of the blanking plate is fixed to the support frame, and the first mounting plate is located above the blanking plate.

[0013] Compared with the prior art, when the present invention is in use, after the forming punch and the forming die are fitted together, the plastic is formed between the two. When demolding, the pull rope is stretched as the forming punch is pulled out, so that the pull rope drives the ejection mold to move forward to eject the molded part. The operation is simple and easy to use, and no manual intervention is required during injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a complete structural diagram of an injection molding mechanism for a printer cover that is easy to assemble and disassemble, as proposed by the present invention.

[0016] Figure 2 This is a rear view of the second support seat of the injection molding mechanism of the printer cover that is easy to disassemble and assemble proposed by the present invention.

[0017] Figure 3 This is a front view of the second support seat of the injection molding mechanism of the printer cover that is easy to disassemble and assemble proposed by the present invention.

[0018] In the figure: 1. base; 2. first support seat; 3. support frame; 4. first guide tube; 5. first guide shaft; 6. extrusion hydraulic cylinder; 7. first mounting plate; 8. forming punch; 9. connecting ring; 10. pull rope; 11. blanking plate; 12. second support seat; 13. return spring; 14. second guide shaft; 15. strip seat; 16. connecting hole; 17. first U-shaped frame; 18. sealing cover; 19. exhaust vent; 20. second U-shaped frame; 21. material guide tube; 22. injection hydraulic cylinder; 23. mounting seat; 24. mounting frame; 25. forming die; 26. support frame; 27. ejector mold; 28. limiting ring; 29. ​​injection head; 30. second guide tube; 31. bearing plate; 32. ejector outlet. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] See also Figure 1-3 The present invention provides a technical solution: an injection molding mechanism for a printer cover that is easy to disassemble and assemble, comprising a base 1, a first support base 2 being mounted on one end of the top of the base 1, a second support base 12 being mounted on the other end, and support frames 3 being vertically mounted on both sides of the top of the second support base 12 and the first support base 2;

[0021] A carrying plate 31 is provided above the top of the first support seat 2. The carrying plate 31 is arranged perpendicular to the base 1 and is fixedly connected to the support frame 3 on both sides. An extrusion hydraulic cylinder 6 is vertically installed in the middle position of the carrying plate 31. A first mounting plate 7 is vertically installed on one end of the extrusion hydraulic cylinder 6 close to the second support seat 12. A forming punch 8 is installed in the middle of the other side of the first mounting plate 7. Connecting rings 9 are respectively installed on both sides of the first mounting plate 7;

[0022] like Figure 3 As shown, a support frame 26 is provided above the second support seat 12. The support frame 26 and the first mounting plate 7 are provided correspondingly, and the support frame 26 is installed on the side of the support frame 3 close to the first support seat 2. The support frame 26 and the first mounting plate 7 are parallel. A forming die 25 is fixedly installed in the support frame 26. When the extrusion hydraulic cylinder 6 is extended, the forming punch 8 is placed in the forming die 25, and the molten plastic cup is injected into the forming punch 8 and the forming die 25 to be formed between the two.

[0023] like Figure 2 and Figure 3As shown, the side of the forming die 25 is provided with two symmetrically arranged large ejection outlets 32, each of which houses an ejection mold 27. The ejection mold 27 and the inner cavity of the forming die 25 have the same shape, so that the plastic molded part will not be affected by the ejection mold;

[0024] A second guide shaft 14 is perpendicularly connected to the side of the ejector mold 27 away from the first mounting plate 7. The second guide shaft 14 is disposed through the first U-shaped frame 17. Both ends of the first U-shaped frame 17 are respectively connected and fixed between the support frame 3. The second guide shaft 14 extends outside the first U-shaped frame 17. A return spring 13 is sleeved on the end of the second guide shaft 14. The end of the second guide shaft 14 is connected and fixed via a strip seat 15. The two ends of the return spring 13 are respectively in elastic contact with the strip seat 15 and the first U-shaped frame 17.

[0025] Connecting holes 16 are respectively provided at both ends of the strip seat 15 . A pull rope 10 is connected to the connecting holes 16 , and the other ends of the pull rope 10 are respectively installed in the connecting rings 9 .

[0026] Specifically, when the extrusion hydraulic cylinder 6 drives the forming punch 8 and the forming die 25 to fit together, the molten plastic is injected between the two. When the plastic part is formed, the forming punch 8 is pulled back by the extrusion hydraulic cylinder 6, allowing the connecting rings 9 on both sides of the first mounting plate 7 to drive the pull rope 10 to tighten, so that the other end of the pull rope 10 pulls the second guide shaft 14 toward the forming punch 8, thereby driving the ejection mold 27 to extend from the ejection outlet 32, ejecting the plastic molded part.

[0027] like Figure 1 As shown, first guide shafts 5 are vertically installed at the four corners of the first mounting plate 7, and first guide tubes 4 are sleeved on the first guide shafts 5. The first guide tubes 4 are respectively passed through and fixed on the supporting plate 31. The first guide shafts 5 can support the first mounting plate 7 and the forming punch 8, increase their strength, and ensure stable back and forth movement.

[0028] like Figure 2 As shown, each second guide shaft 14 is sleeved with a second guide tube 30, which extends through and is fixed to the first U-shaped frame 17. A limit ring 28 is coaxially fixed to the end of the second guide shaft 14 near the ejection mold 27. When the ejection mold 27 is located in the forming die 25, the limit ring 28 abuts against the second guide tube 30. The limit ring 28 prevents further movement of the second guide shaft 14, ensuring that the ejection mold 27 fits neatly into the ejection outlet 32. When the pull cord 10 is released, the return spring 13 quickly returns the ejection mold 27 to its original position for the next forming operation.

[0029] like Figure 1As shown, sealing covers 18 are provided on the upper and lower sides of the first U-shaped frame 17. The edges of the sealing covers 18 are fixedly connected to the support frame 26. Exhaust ports 19 are provided at the tops of the sealing covers 18, and exhaust fans are installed in each exhaust port 19. In actual use, the fans on the two sealing covers 18 have the same exhaust direction, which allows external air to quickly enter the sealing covers and remove the air around the forming die 25, thereby reducing the heat of the forming die 25 and facilitating heat forming.

[0030] like Figure 1 As shown, a second U-shaped frame 20 is provided above the molding die 25, and a mounting seat 23 is connected to the top side of the second U-shaped frame 20. An injection hydraulic cylinder 22 is installed vertically downward in the mounting seat 23, and a mounting frame 24 is connected to the bottom of the injection hydraulic cylinder 22. An injection head 29 is vertically installed on the mounting frame 24. The top of the injection head 29 is connected to a guide pipe 21, and the guide pipe 21 is connected to a feeder, allowing the material to enter the injection head 29 through the guide pipe 21. The guide pipe 21 is connected to the injection molding machine, and the injection head 29 is aligned with the injection hole on the molding die 25 or the molding punch 8, and is driven to rise and fall by the injection hydraulic cylinder 22.

[0031] like Figure 1 and Figure 3 As shown, a blanking plate 11 is provided below the support frame 26 , the edge of the blanking plate 11 is fixed to the support frame 3 , and the first mounting plate 7 is located above the blanking plate 11 , and the ejected molded parts fall directly onto the blanking plate 11 and fall down along the blanking plate 11 .

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding mechanism for a printer cover that is easy to disassemble and assemble, comprising a base (1), a first support seat (2) being mounted on one end of the top of the base (1), a second support seat (12) being mounted on the other end, support frames (3) being mounted vertically on both sides of the top of the second support seat (12) and the first support seat (2), and characterized in that: A bearing plate (31) is provided above the top of the first support seat (2), the bearing plate (31) is arranged vertically on the base (1) and fixedly connected to the support frame (3) on both sides, an extrusion hydraulic cylinder (6) is vertically installed in the middle position of the bearing plate (31), a first mounting plate (7) is vertically installed at one end of the extrusion hydraulic cylinder (6) close to the second support seat (12), a forming punch (8) is installed in the middle of the other side of the first mounting plate (7), and connecting rings (9) are respectively installed on both sides of the first mounting plate (7); A support frame (26) is provided above the second support seat (12), the support frame (26) and the first mounting plate (7) are provided correspondingly, and the support frame (26) is installed on a side of the support frame (3) close to the first support seat (2), the support frame (26) and the first mounting plate (7) are parallel, and a forming die (25) is fixedly installed in the support frame (26), and when the extrusion hydraulic cylinder (6) is extended, the forming convex die (8) is placed in the forming die (25); The side of the forming die (25) is provided with two symmetrically arranged large ejection outlets (32), each of which contains an ejection mold (27), and the ejection mold (27) is vertically connected to a second guide shaft (14) on the side away from the first mounting plate (7), and the second guide shaft (14) is arranged on the first U-shaped frame (17), and the two ends of the first U-shaped frame (17) are respectively connected and fixed between the support frame (3); wherein, the second guide shaft (14) extends to the outside of the first U-shaped frame (17), and a return spring (13) is sleeved on the end of the second guide shaft (14); the end of the second guide shaft (14) is connected and fixed through the strip seat (15), and the two ends of the return spring (13) are respectively in elastic contact with the strip seat (15) and the first U-shaped frame (17); Connecting holes (16) are respectively provided at both ends of the strip seat (15), and a pull rope (10) is connected in the connecting hole (16), and the other end of the pull rope (10) is respectively installed in the connecting ring (9); the four corners of the first mounting plate (7) are vertically installed with a first guide shaft (5), and the first guide shaft (5) is sleeved with a first guide tube (4), and the first guide tube (4) is respectively passed through and fixed on the bearing plate (31); a blanking plate (11) is provided below the support frame (26), and the edge of the blanking plate (11) is fixed between the support frame (3), and the first mounting plate (7) is located above the blanking plate (11).

2. The injection molding mechanism for a printer cover that is easy to assemble and disassemble according to claim 1, characterized in that: A second guide tube (30) is sleeved on each of the second guide shafts (14). The second guide tube (30) is fixed on the first U-shaped frame (17). A limiting ring (28) is coaxially fixed on one end of the second guide shaft (14) close to the ejection mold (27). When the ejection mold (27) is located in the forming die (25), the limiting ring (28) and the second guide tube (30) are abutted against each other.

3. The injection molding mechanism for a printer cover that is easy to assemble and disassemble according to claim 1, characterized in that: A sealing cover (18) is provided on both the upper and lower sides of the first U-shaped frame (17), the edges of the sealing cover (18) are fixedly connected to the support frame (26), and an exhaust port (19) is provided on the top of the sealing cover (18), and an exhaust fan is installed in each exhaust port (19).

4. The injection molding mechanism for a printer cover that is easy to assemble and disassemble according to claim 1, characterized in that: A second U-shaped frame (20) is provided above the forming die (25), a mounting seat (23) is connected to the top side of the second U-shaped frame (20), an injection hydraulic cylinder (22) is vertically installed downward in the mounting seat (23), the bottom of the injection hydraulic cylinder (22) is connected to the mounting frame (24), an injection head (29) is vertically installed on the mounting frame (24), and the top of the injection head (29) is connected to the material guide pipe (21).

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