Hasp structure for mold

Abstract

The invention discloses a hasp structure for a mold. The hasp structure comprises a hasp hook, a hasp ring and an adjusting mechanism. The agraffe comprises a mounting part, a handle, a hook body and a pin shaft. And after the buckling section and the buckling notch are completely buckled, the interval between the buckling section and the pin shaft is finely adjusted and reduced by using a threaded adjusting mechanism. On one hand, the extending section of the hook body is vertical, the force of the buckling section acting on the buckling notch is vertically downward, and on the other hand, the force of the buckling section acting on the buckling notch is increased through screwing of the threads. Therefore, the attaching tightness degree between the attaching faces of the upper die body and the lower die body is improved.

Description

Technical Field

[0001] The invention relates to a buckle, and in particular to a buckle structure for a mold. Background Art

[0002] The mold is generally composed of an upper mold body and a lower mold body to form a mold cavity of the corresponding workpiece. During the casting process, the fitting surfaces of the upper mold body and the lower mold body need to fit tightly to ensure the quality of the workpiece at the mold closing point. At present, the upper mold body and the lower mold body can generally be set to a hydraulic mechanism, and the pressure provided by the hydraulic pressure is used to make the upper mold body and the lower mold body fit tightly. In the process of mold testing, the upper mold body and the lower mold body are generally not directly set to the hydraulic mechanism. The reason is that the upper mold body / lower mold body needs to be disassembled and assembled in order to trim the mold according to the test results. Correspondingly, in the process of mold testing, a buckle structure is generally used to make the upper mold body and the lower mold body fit tightly, which is convenient for directly trimming the mold according to the test results.

[0003] The existing buckle structure generally includes: a buckle ring and a hook. The buckle ring is provided with a buckle notch. The hook includes: a mounting portion, a handle, a hook body and a pin. However, the pressure provided by the buckle structure is general. In order to ensure that the upper mold body and the lower mold body fit tightly, only a considerable number of buckle structures can be set on the upper mold body and the lower mold body to meet the requirements. However, the number of buckle structures is limited by the size of the upper mold body and the lower mold body, and it is easy for the buckle structure to fail to meet the situation that the upper mold body and the lower mold body fit tightly. Summary of the invention

[0004] The present application provides a buckle structure for a mold, which increases the force of the buckle section acting on the buckle notch, and is more suitable for the specific use scenarios of the buckle structure on the upper mold body and the lower mold.

[0005] In the present application, a buckle structure for a mold is provided, comprising: The hook comprises: a mounting portion, a handle, a hook body and a pin; the first end of the handle is hinged to the mounting portion around a first axis; the hook body comprises: a buckle section parallel to the first axis and two extension sections extending from two ends of the buckle section and perpendicular to the buckle section; the pin is rotatably connected to the middle position of the handle, the axis of the pin is parallel to the first axis, and both ends of the pin extend beyond the handle and are provided with through holes for the extension sections to pass through; The loop has a first side surface as a mounting surface; a buckling notch is also provided, and the inner wall of the buckling notch includes: an inclined portion close to the first side surface, a vertical portion away from the first side surface, and a horizontal portion connecting the two; the length of the horizontal portion is greater than the diameter of the buckling section; The threaded adjustment mechanism is arranged between the hook body and the pin shaft and is used for adjusting the interval between the buckling section and the pin shaft.

[0006] In some embodiments, the adjustment mechanism includes: two adjustment nuts and two blocks; the adjustment nuts are threadedly connected to the portion of the extension section that passes through the pin shaft; the block is fixed to the portion of the extension section between the snap-fit ​​section and the pin shaft, and is close to the pin shaft.

[0007] In some embodiments, the adjustment mechanism further includes: two compression springs; the compression spring is sleeved on the extension section, and the two ends of the compression spring are respectively kept against the pin shaft and the stopper.

[0008] In some embodiments, the hook body further includes: a connecting section connecting the two extension sections extending out of the pin shaft; the adjusting mechanism is an adjusting bolt, the end of the adjusting bolt is rotatably connected to the pin shaft, and the threaded rod is threadedly connected to the connecting section.

[0009] In some embodiments, the distance between the snap-fit ​​section and the pin is smaller than the distance between the second end of the handle and the pin.

[0010] In some embodiments, the length of the horizontal portion is 3-4 times the diameter of the engagement segment.

[0011] In summary, in the present application, a snap-on structure for a mold includes a snap hook, a snap ring, and an adjustment mechanism. The snap hook includes a mounting portion, a handle, a hook body, and a pin. After the snap-on section and the snap-on notch are fully snapped, a threaded adjustment mechanism is used to fine-tune and reduce the interval between the snap-on section and the pin. On the one hand, the extension section of the hook body is made vertical, and the force of the snap-on section acting on the snap-on notch is also vertically downward. On the other hand, by tightening the thread, the force of the snap-on section acting on the snap-on notch is increased. Thereby, the tightness of the fit between the fitting surfaces of the upper mold body and the lower mold body is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0013] Figure 1 A schematic diagram of the present application using an adjusting nut and a stopper as an adjusting mechanism; Figure 2 A schematic diagram of the ring is shown; Figure 3 is a schematic diagram of the fastening section and the fastening notch one step before being fully fastened; Figure 4 is a schematic diagram showing that the fastening section and the fastening notch are fully fastened together; Figure 5 It is a schematic diagram of adjusting the extension section to be vertical after the fastening section and the fastening notch are fully fastened together; Figure 6 A schematic diagram of the arrangement of the adjustment mechanism also including a compression spring; Figure 7A schematic diagram showing that the buckle section abuts against the handle so that the hook body is tilted downward; Figure 8 A schematic diagram of the present application using an adjusting bolt as an adjusting mechanism; Fig. 9 The schematic diagram is that the adjusting bolt is pressed against the lower mold body so that the hook body is tilted upward.

[0014] In the figure, 1. Hook; 1a. Mounting portion; 1a1. Protrusion; 1b. Handle; 1b1. Connecting piece; 1b2. Grip; 1c. Hook body; 1c1. Fastening section; 1c2. Extending section; 1c3. Connecting section; 1d. Pin shaft; 2. Loop; 2a. First side surface; 2b. Engagement notch; 2b1. Inclined portion; 2b2. Horizontal portion; 2b3. Vertical portion; 3. Adjusting mechanism; 3a. Adjusting nut; 3b. Stopper; 3c. Compression spring; 3d. Adjusting bolt. DETAILED DESCRIPTION

[0015] The following is further described in conjunction with the accompanying drawings, which are only used as examples and are not strictly drawn to scale. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "including" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. In the absence of conflict, the embodiments in the present application can be combined with each other.

[0016] See also Figure 1 and Figure 8 A buckle structure for a mold includes a hook 1, a ring 2 and an adjustment mechanism 3.

[0017] See also Figure 1 The hook 1 includes a mounting portion 1a, a handle 1b, a hook body 1c and a pin 1d.

[0018] The mounting portion 1a is used to mount the hook 1 on the lower mold body. More specifically, the mounting portion 1a can be in the form of a sheet, with a protrusion 1a1 integrally provided in the middle, through holes provided on both sides of the protrusion 1a1, and screws can be used to fix the mounting portion 1a to the lower mold body.

[0019] The first end of the handle 1b is hinged to the mounting portion 1a. More specifically, the handle 1b may include two connecting pieces 1b1 and a grip 1b2; the middle position of the connecting piece 1b1 is bent so as to bulge out; a gap is left between the first ends of the two connecting pieces 1b1, the gap is suitable for the thickness of the protrusion 1a1 of the mounting portion 1a, and the protrusion 1a1 is inserted and hinged; a setting space is formed in the middle position of the two connecting pieces 1b1; the second ends of the two connecting pieces 1b1 are both welded and fixed to the grip 1b2.

[0020] The handle 1b can swing relative to the mounting portion 1a. For the convenience of subsequent description, the axis around which the handle 1b swings is set as the first axis.

[0021] The hook body 1c includes a buckling section 1c1 and two extension sections 1c2 extending from both ends of the buckling section 1c1 and perpendicular to the buckling section 1c1. More specifically, the buckling section 1c1 and the extension section 1c2 can be integrated, and the extension section 1c2 can be formed by bending.

[0022] The pin 1d is rotatably connected to the middle position of the handle 1b, and the axis of the pin 1d is parallel to the first axis. More specifically, the connection position of the pin 1d to the handle 1b is in the area where the two connecting pieces 1b1 are bent and thus protruded, that is, the pin 1d passes through the setting space.

[0023] Both ends of the pin 1d extend beyond the handle 1b, and both ends are provided with through holes for the extension sections 1c2 to pass through on the portions extending beyond the handle 1b. After the two extension sections 1c2 pass through the two through holes, the axes of the fastening section 1c1 and the pin 1d are parallel, that is, the fastening section 1c1 is also parallel to the first axis.

[0024] See also Figure 1 and Figure 2 , the loop 2 is mounted to the upper mold body. More specifically, the loop 2 can be concave, and the back side opposite to the notch is used as the mounting surface for fitting to the mold body; accordingly, the inner wall of the notch is also provided with a through hole penetrating to the back side, and the loop 2 can be fixedly connected to the upper mold body using screws. For the convenience of subsequent description, the back side is set as the first side surface 2a.

[0025] The buckle is also provided with a fastening notch 2b. Since the buckle ring 2 can be concave, the fastening notch 2b is the part on both sides of the notch. The inner wall of the fastening notch 2b includes an inclined part 2b1 close to the first side surface 2a, a vertical part 2b3 away from the first side surface 2a, and a horizontal part 2b2 connecting the two. The length of the horizontal part 2b2 is greater than the diameter of the fastening section 1c1.

[0026] In some embodiments, the length of the horizontal portion 2b2 is 3-4 times the diameter of the locking section 1c1.

[0027] See also Figure 4 When the fastening section 1c1 and the fastening notch 2b are fully fastened, the fastening section 1c1 presses downward against the horizontal portion 2b2 of the fastening notch 2b.

[0028] The adjusting mechanism 3 is arranged between the hook body 1c and the pin 1d, and is used to adjust the interval between the buckling section 1c1 and the pin 1d. The adjusting mechanism 3 is a threaded type, and the adjustment accuracy of the thread is high, and the stability of the threaded connection is good.

[0029] The buckle structure is in the process of buckling: S1. Please refer to Figure 3 The handle 1b swings around the first axis toward the direction away from the mounting portion 1a, so that the pin 1d and the loop 2 are spaced apart in the horizontal direction. Accordingly, the hook body 1c and the pin 1d swing around the axis of the pin 1d toward the direction close to the loop 2 until the snap-fit ​​section 1c1 abuts against the inclined portion 2b1 of the snap-fit ​​notch 2b.

[0030] S2. Please refer to Figure 4 The handle 1b swings around the first axis toward the mounting portion 1a, and accordingly, the hook body 1c and the pin 1d swing relative to the handle 1b, and the snap-fit ​​section 1c1 enters and presses downward against the horizontal portion 2b2 of the snap-fit ​​notch 2b, and finally the snap-fit ​​section 1c1 and the snap-fit ​​notch 2b are fully snap-fitted.

[0031] S3. Please refer to Figure 5 , the interval between the snap-fitting section 1c1 and the pin 1d is fine-tuned by the adjustment mechanism 3 to reduce the interval; as the interval is reduced, the hook body 1c and the pin 1d swing relative to the handle 1b, and during the swinging process, the snap-fitting section 1c1 keeps pressing downward against the horizontal part 2b2 of the snap-fitting notch 2b, and at the same time, the snap-fitting section 1c1 translates in the horizontal part 2b2 until the extension section 1c2 of the hook body 1c is vertical.

[0032] After the fastening section 1c1 and the fastening notch 2b are fully fastened, the threaded adjustment mechanism 3 is used to fine-tune and reduce the interval between the fastening section 1c1 and the pin 1d. On the one hand, the extension section 1c2 of the hook body 1c is made vertical, and the force of the fastening section 1c1 acting on the fastening notch 2b is also vertically downward. On the other hand, by tightening the thread, the force of the fastening section 1c1 acting on the fastening notch 2b is increased. Thereby, the tightness of the fit between the fitting surfaces of the upper mold body and the lower mold body is improved.

[0033] See also Figure 1 In some embodiments, the adjustment mechanism 3 includes two adjustment nuts 3a and two stoppers 3b. The adjustment nuts 3a are threadedly connected to the portion of the extension section 1c2 that passes through the pin 1d. The stoppers 3b are fixed to the portion of the extension section 1c2 between the buckling section 1c1 and the pin 1d, and are close to the pin 1d. More specifically, the stoppers 3b can use self-locking nuts with nylon inserts.

[0034] In the above S1, the stopper 3b abuts against the pin 1d, and the position of the stopper 3b needs to be designed so that the spacing between the snap-fit ​​section 1c1 and the pin 1d is appropriate. In the above S2, the extension portion moves relative to the pin 1d until the adjustment nut 3a abuts against the pin 1d. In the above S3, the two adjustment nuts 3a are rotated simultaneously.

[0035] See also Figure 6 In some embodiments, based on the above embodiment of "the adjustment mechanism 3 includes two adjustment nuts 3a and two stoppers 3b", the adjustment mechanism 3 also includes two compression springs 3c. The compression spring 3c is sleeved on the extension section 1c2, and the two ends are respectively kept against the pin 1d and the stopper 3b.

[0036] In the above S1 and S2, under the action of the compression spring 3c, the adjusting nut 3a abuts against the pin 1d, making the operation quicker and more convenient.

[0037] See also Figure 7 In some embodiments, based on the above-mentioned embodiment of "the adjustment mechanism 3 includes two adjustment nuts 3a and two stops 3b", the distance between the snap-fit ​​section 1c1 and the pin shaft 1d is smaller than the distance between the second end of the handle 1b and the pin shaft 1d.

[0038] Before the upper mold body and the lower mold body are matched, the hook body 1c and the pin 1d are swung so that the buckle section 1c1 of the hook body 1c abuts against the grip 1b2 of the handle 1b. At this time, the hook body 1c is tilted downward, which is convenient for the upper mold body and the lower mold body to match, and also convenient for the buckle structure to buckle after the upper mold body and the lower mold body are matched.

[0039] See also Figure 8In some embodiments, the hook body 1c also includes a connecting section 1c3, which connects the two extension sections 1c2 that pass through the pin 1d. More specifically, the end of the pin 1d may have a thread, and two nuts may be used to fix the connecting section 1c3 from both sides. The adjustment mechanism 3 is an adjusting bolt 3d. The end of the adjusting bolt 3d is rotatably connected to the pin 1d. More specifically, two opposite notches may be provided in the middle of the pin 1d to form two parallel planes, and the portion of the adjusting bolt 3d close to the pin 1d is smooth, and two shaft-type retaining rings are used to respectively resist and fit the two planes, and are rotatably connected to the pin 1d. The threaded rod portion is threadedly connected to the connecting section 1c3. More specifically, a matching threaded through hole is provided on the connecting section 1c3.

[0040] See also Fig. 9 Before the upper mold body and the lower mold body are matched, the hook body 1c and the pin shaft 1d are swung to make the adjustment bolt 3d abut against the lower mold body. At this time, the hook body 1c is tilted upward. This facilitates the matching of the upper mold body and the lower mold body, and also facilitates the buckle structure to perform the buckle operation after the upper mold body and the lower mold body are matched.

Claims

1. A buckle structure for a mold, characterized in that: include: A hook (1) comprises: a mounting portion (1a), a handle (1b), a hook body (1c) and a pin (1d); the first end of the handle (1b) is hinged to the mounting portion (1a) around a first axis; the hook body (1c) comprises: a buckling section (1c1) parallel to the first axis and two extension sections (1c2) extending from both ends of the buckling section (1c1) and perpendicular to the buckling section (1c1); the pin (1d) is rotatably connected to the middle position of the handle (1b), the axis of the pin (1d) is parallel to the first axis, and both ends of the pin (1d) extend beyond the handle (1b) and are provided with through holes for the extension sections (1c2) to pass through; The loop (2) has a first side surface (2a) as a mounting surface; a buckling notch (2b) is also provided; the inner wall of the buckling notch (2b) comprises: an inclined portion (2b1) close to the first side surface (2a), a vertical portion (2b3) away from the first side surface (2a), and a horizontal portion (2b2) ​​connecting the two; the length of the horizontal portion (2b2) ​​is greater than the diameter of the buckling section (1c1); The threaded adjustment mechanism (3) is arranged between the hook body (1c) and the pin shaft (1d) and is used to adjust the interval between the buckling section (1c1) and the pin shaft (1d).

2. A buckle structure for a mold according to claim 1, characterized in that: The adjustment mechanism (3) comprises: two adjustment nuts (3a) and two stoppers (3b); the adjustment nuts (3a) are threadedly connected to the portion of the extension section (1c2) that passes through the pin shaft (1d); and the stoppers (3b) are fixedly arranged at the portion of the extension section (1c2) between the buckling section (1c1) and the pin shaft (1d), and are close to the pin shaft (1d).

3. A buckle structure for a mold according to claim 2, characterized in that: The adjustment mechanism (3) further comprises: two compression springs (3c); the compression spring (3c) is sleeved on the extension section (1c2), and its two ends are respectively held against the pin shaft (1d) and the stopper (3b).

4. A buckle structure for a mold according to claim 1, characterized in that: The hook body (1c) further comprises: a connecting section (1c3) connecting the two extension sections (1c2) and the parts passing through the pin shaft (1d); the adjusting mechanism (3) is an adjusting bolt (3d), the end of the adjusting bolt (3d) is rotatably connected to the pin shaft (1d), and the threaded rod is threadedly connected to the connecting section (1c3).

5. A buckle structure for a mold according to claim 2, characterized in that: The distance between the buckling section (1c1) and the pin shaft (1d) is smaller than the distance between the second end of the handle (1b) and the pin shaft (1d).

6. A buckle structure for a mold according to claim 1, characterized in that: The length of the horizontal portion (2b2) ​​is 3-4 times the diameter of the locking section (1c1).

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