Casting mold of sewing machine head

Abstract

The utility model discloses a sewing machine head casting mold which comprises an oscillation box, two sets of sliding grooves are formed in the bottom end of the oscillation box, the outer side wall of a sliding rod is connected with a sliding block in a sliding mode, one end of the sliding block is fixedly connected with a buffering spring, and the buffering spring is arranged on the outer side wall of the sliding rod in a sleeved mode. The buffer springs and one ends of the sliding blocks are fixedly connected with fixing blocks, the fixing blocks are fixedly connected to the outer side walls of the sliding rods, two sets of supporting telescopic rods are arranged above the sliding rods, the outer side walls of the supporting telescopic rods are sleeved with supporting springs, the bottom ends of the supporting springs are fixedly connected with the top ends of the sliding blocks, and an outer mold is arranged above the supporting springs. The bottom end of the outer mold is rotationally connected with the top end of the supporting telescopic rod. When the device is used, a space for vertical vibration of the outer mold is provided through cooperation of the supporting telescopic rods and the supporting springs, a space for left-right vibration of the outer mold is provided through cooperation of the fixing blocks, the buffer springs and the sliding blocks, and therefore vibration of the outer mold is achieved, and molten metal in the outer mold is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine casting, in particular to a casting mould for a sewing machine head. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. It can sew cotton, linen, silk, wool, artificial fiber and other fabrics and leather, plastic, paper and other products. The stitches are neat, beautiful, flat and firm, with fast sewing speed and easy use. It has also derived art forms such as hand-push embroidery and computer embroidery.

[0003] The appearance of the sewing machine is relatively irregular, so it is mostly manufactured by casting. In the process of casting the sewing machine, a mold is needed to shape the sewing machine. During the use of the sewing machine mold, due to the complex internal structure of the sewing machine, when the mold is used to cast some castings with more complex structures, the shape inside the casting mold is uneven and uneven, which will cause defects in the cooled shape. Utility Model Content

[0004] The purpose of the utility model is to provide a casting mold for a sewing machine head, so as to solve the problem raised in the above background technology that due to the complex internal structure of the sewing machine, when the mold is used to cast some castings with complex structures, the shape inside the casting mold is uneven and uneven, which will cause defects in the cooled shape.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a casting mold for a sewing machine head, comprising an oscillation box, wherein two groups of sliding grooves are opened at the bottom end of the oscillation box, a sliding rod is slidingly arranged inside the sliding groove, an outer wall of the sliding rod is slidably connected with a sliding block, one end of the sliding block is fixedly connected with a buffer spring, the buffer spring is sleeved on the outer wall of the sliding rod, the buffer spring and one end of the sliding block are fixedly connected with a fixed block, the fixed block is fixedly connected to the outer wall of the sliding rod, two groups of supporting telescopic rods are arranged above the sliding rod, the outer wall of the supporting telescopic rod is sleeved with a supporting spring, the bottom end of the supporting spring is fixedly connected to the top end of the sliding block, an outer mold is arranged above the supporting spring, and the bottom end of the outer mold is rotatably connected to the top end of the supporting telescopic rod.

[0006] Through the above technical solution, the outer mold can be vibrated so that the cooled shape meets the requirements.

[0007] Preferably, one end of the oscillation box is fixedly connected to a motor frame, and the top end of the motor frame is fixedly connected to a rotating motor.

[0008] The above technical solution can realize the fixing of the rotating motor.

[0009] Preferably, an outer side wall of the outer mold is fixedly connected with a connecting block, and one end of the connecting block is threadedly connected with a fixing bolt.

[0010] Through the above technical solution, the outer molds can be merged and separated to take out subsequent parts.

[0011] Preferably, an inner mold is installed inside the outer mold, and a feed port is fixedly connected to the top of the outer mold.

[0012] The above technical solution can realize the injection of molten metal and the removal of the inner mold.

[0013] Preferably, a driving block is rotatably connected to one side of the outer mold, and a groove is provided at a corner of the driving block.

[0014] Through the above technical solution, the force direction of the outer mold is adjusted.

[0015] Preferably, an output end of the rotating motor is fixedly connected to an oscillating wheel, and an outer side wall of the oscillating wheel is fixedly connected to a plurality of groups of protrusions.

[0016] Through the above technical solution, the vibration of the outer mold is driven by the vibration wheel.

[0017] Preferably, the bottom end of the driving block is rotatably connected to a reset telescopic rod, the bottom end of the reset telescopic rod is rotatably connected to one end of the outer mold, and the outer side wall of the reset telescopic rod is sleeved with a reset spring.

[0018] Through the above technical solution, the force direction of the outer mold is changed, so that the outer mold vibrates in all directions.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The outer mold, supporting telescopic rod, sliding groove, supporting spring, fixed block, buffer spring, sliding block and sliding rod are provided. The cooperation of supporting telescopic rod and supporting spring provides space for the outer mold to vibrate up and down. The cooperation of fixed block, buffer spring and sliding block provides space for the outer mold to vibrate left and right. The outer mold drives the vibration of the feed port to make the metal liquid inside the feed port more uniform.

[0021] 2. A motor frame, an oscillating wheel and a rotating motor are provided, the motor frame provides support for the reset spring, and the reset spring drives the oscillating wheel to rotate, thereby actively vibrating the outer mold;

[0022] 3. By providing a groove, a reset spring, a reset telescopic rod and a driving block, the compression and reset of the driving block are achieved through the cooperation of the reset spring and the reset telescopic rod, and the force direction of the outer mold is changed through the cooperation of the groove and the driving block, thereby improving the diversity of the force direction of the outer mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the device of the utility model;

[0024] Figure 2 This is a schematic diagram of the overall front view structure of the utility model;

[0025] Figure 3 This is an enlarged structural diagram of the bottom of the outer mold of the utility model;

[0026] Figure 4 This is a side view of the structure of the utility model;

[0027] Figure 5 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1. Oscillating box; 2. Connecting block; 3. Fixing bolt; 4. Feeding port; 5. Outer mold; 6. Motor frame; 7. Inner mold; 8. Oscillating wheel; 9. Support telescopic rod; 10. Sliding groove; 11. Support spring; 12. Fixing block; 13. Buffer spring; 14. Sliding block; 15. Sliding rod; 16. Rotating motor; 17. Groove; 18. Reset spring; 19. Reset telescopic rod; 20. Driving block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-5 The utility model provides a technical solution: a casting mold for a sewing machine head, including an oscillation box 1, see Figure 1 , Figure 2 and Figure 3Two groups of sliding grooves 10 are provided at the bottom end of the oscillation box 1. A sliding rod 15 is slidably arranged inside the sliding groove 10. A sliding block 14 is slidably connected to the outer wall of the sliding rod 15. One end of the sliding block 14 is fixedly connected to a buffer spring 13. The buffer spring 13 is sleeved on the outer wall of the sliding rod 15. A fixed block 12 is fixedly connected to one end of the buffer spring 13 and the sliding block 14, thereby realizing the horizontal vibration of the structure. The fixed block 12 is fixedly connected to the outer wall of the sliding rod 15. Two groups of supporting telescopic rods 9 are arranged above the sliding rod 15. A supporting spring 11 is sleeved on the outer wall of the supporting telescopic rod 9. The bottom end of the supporting spring 11 is fixedly connected to the top end of the sliding block 14, thereby realizing the vertical vibration of the structure. There is an outer mold 5, the bottom end of the outer mold 5 is rotatably connected to the top of the supporting telescopic rod 9, the outer side wall of the outer mold 5 is fixedly connected with a connecting block 2, one end of the connecting block 2 is threadedly connected with a fixing bolt 3, so that the outer mold 5 can be merged and separated to take out subsequent parts, the inner mold 7 is installed inside the outer mold 5, and the top of the outer mold 5 is fixedly connected with a feed port 4 to realize the injection of molten metal and the removal of the inner mold 7. The cooperation of the supporting telescopic rod 9 and the supporting spring 11 provides space for the outer mold 5 to vibrate up and down, and the cooperation of the fixed block 12, the buffer spring 13 and the sliding block 14 provides space for the outer mold 5 to vibrate left and right, so that the outer mold 5 drives the vibration of the feed port 4 to make the molten metal inside the feed port 4 more uniform.

[0031] See also Figure 1 , Figure 2 and Figure 4 One end of the oscillation box 1 is fixedly connected to a motor frame 6, and the top of the motor frame 6 is fixedly connected to a rotating motor 16 to fix the rotating motor 16. One end of the oscillation box 1 is fixedly connected to the motor frame 6, and the outer side wall of the oscillation wheel 8 is fixedly connected to a plurality of groups of protrusions. The vibration of the outer mold 5 is driven by the oscillation wheel 8, and the motor frame 6 provides support for the reset spring 18. The oscillation wheel 8 is driven to rotate by the reset spring 18, thereby actively vibrating the outer mold 5.

[0032] See also Figure 1 , Figure 2 and Figure 5 One side of the outer mold 5 is rotatably connected with a driving block 20, and a groove 17 is provided at one corner of the driving block 20 to adjust the force direction of the outer mold 5. The bottom end of the driving block 20 is rotatably connected with a reset telescopic rod 19, and the bottom end of the reset telescopic rod 19 is rotatably connected to one end of the outer mold 5. The outer wall of the reset telescopic rod 19 is provided with a reset spring 18 to change the force direction of the outer mold 5, so that the outer mold 5 vibrates in all directions. The compression and reset of the driving block 20 are realized by the cooperation of the reset spring 18 and the reset telescopic rod 19. The force direction of the outer mold 5 is changed by the cooperation of the groove 17 and the driving block 20, thereby improving the diversity of the force direction of the outer mold 5.

[0033] Working principle: First, before casting the sewing machine head, place the inner mold 7 into the outer mold 5, slide the outer mold 5 and tighten the fixing bolt 3 to merge the outer mold 5, and then pour the molten metal through the feed port 4. During the cooling process, the elastic potential energy of the supporting telescopic rod 9 and the supporting spring 11 is used to provide space for the outer mold 5 to vibrate up and down, and the elastic potential energy of the fixed block 12, the buffer spring 13 and the sliding block 14 is used to provide space for the outer mold 5 to vibrate left and right, so that the outer mold 5 drives the vibration of the feed port 4, thereby making the molten metal inside the feed port 4 more uniform.

[0034] Secondly, when the inner mold 7 is cooling, the convex block thereof is driven by the oscillation wheel 8 to touch the outer mold 5, and the elastic potential energy of the support spring 11 and the buffer spring 13 is triggered, so that the vibration amplitude is larger.

[0035] Finally, when the oscillation wheel 8 touches the driving block 20, the compression of the driving block 20 pushes the outer mold 5 and resets it with the help of the reset spring 18 and the reset telescopic rod 19. At the same time, the force direction of the outer mold 5 is changed through the cooperation of the groove 17 and the driving block 20, thereby improving the diversity of the force direction of the outer mold 5.

[0036] Although the 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A casting mold for a sewing machine head, comprising an oscillation box (1), characterized in that: The bottom end of the oscillation box (1) is provided with two groups of sliding grooves (10), a sliding rod (15) is slidably arranged inside the sliding groove (10), an outer wall of the sliding rod (15) is slidably connected with a sliding block (14), one end of the sliding block (14) is fixedly connected with a buffer spring (13), the buffer spring (13) is sleeved on the outer wall of the sliding rod (15), one end of the buffer spring (13) and the sliding block (14) are fixedly connected with a fixed block (12), the fixed block (12) is fixedly connected to the outer wall of the sliding rod (15), two groups of supporting telescopic rods (9) are arranged above the sliding rod (15), the outer wall of the supporting telescopic rod (9) is sleeved with a supporting spring (11), the bottom end of the supporting spring (11) is fixedly connected with the top end of the sliding block (14), an outer mold (5) is arranged above the supporting spring (11), and the bottom end of the outer mold (5) is rotatably connected with the top end of the supporting telescopic rod (9).

2. The casting mold for a sewing machine head according to claim 1, characterized in that: One end of the oscillation box (1) is fixedly connected to a motor frame (6), and the top end of the motor frame (6) is fixedly connected to a rotating motor (16).

3. The casting mold for a sewing machine head according to claim 1, characterized in that: The outer side wall of the outer mold (5) is fixedly connected to a connection block (2), and one end of the connection block (2) is threadedly connected to a fixing bolt (3).

4. The casting mold for a sewing machine head according to claim 1, characterized in that: An inner mold (7) is installed inside the outer mold (5), and a feed port (4) is fixedly connected to the top of the outer mold (5).

5. The casting mold for a sewing machine head according to claim 1, characterized in that: A driving block (20) is rotatably connected to one side of the outer mold (5), and a groove (17) is formed at one corner of the driving block (20).

6. The casting mold for a sewing machine head according to claim 2, characterized in that: The output end of the rotating motor (16) is fixedly connected to an oscillating wheel (8), and the outer side wall of the oscillating wheel (8) is fixedly connected to a plurality of groups of protrusions.

7. The casting mold for a sewing machine head according to claim 5, characterized in that: The bottom end of the driving block (20) is rotatably connected to a resetting telescopic rod (19), the bottom end of the resetting telescopic rod (19) is rotatably connected to one end of the outer mold (5), and the outer side wall of the resetting telescopic rod (19) is sleeved with a resetting spring (18).

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