Double-locking-point linkage mold locking mechanism and narrow mold frame
The mold-locking mechanism with dual locking points solves the problem of mold fixation in narrow mold frames, achieving stable mold fixation without occupying extra space and improving the convenience of installation and disassembly.
Patent Information
- Application Number
- CN202520066337.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Traditional mold fixing methods are not suitable for narrow mold frames, resulting in wasted space in molding machines and factories.
The mold-locking mechanism, which uses a dual-locking point linkage, includes a cylinder, a first locking gripper, and a second locking gripper. Through the linkage of the translation frame and the swing gripper, the mold is stably fixed, but it does not occupy additional space.
The narrow mold frame provides a stable fixation of the mold without taking up extra space, thus improving the ease of mold installation and disassembly.
Smart Images
Figure CN223686068U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the fixed and assembly technology of the upper die of the forming machine. BACKGROUND
[0002] In the forming machine, the upper die is usually fixed on a liftable die frame, and the die closing and die opening operations between the upper die and the lower die are realized by lifting the upper die. The die is usually fixed on the die frame by a die locking mechanism arranged on the die frame, which can facilitate the maintenance operations such as installation and disassembly of the die, and can also facilitate the replacement of different types of dies. There are many ways of the die locking mechanism on the die frame, which is related to the structure design of the mutual matching of the die structure and the die frame structure. In addition to considering the stability after the die is assembled and the convenience of disassembly, the die locking mechanism arranged on the die frame is also related to the space properties of the die frame and the die itself. For example, a certain die is a long strip structure with a width not more than 20 cm and a length not less than 100 cm, and correspondingly, the die frame is also a narrow die frame with a width not more than 20 cm and a length not less than 100 cm. In this case, the traditional four-edge fixed mode of the die cannot be applied in this narrow die frame. Because the width of 20 cm is even not enough for the length of the air cylinder, it is necessary to increase the width of the die frame by installing the die locking mechanism on the long side, which also leads to the waste of the space of the forming machine and even the factory building. SUMMARY
[0003] The utility model solves the problems of die fixing in the narrow die frame of the forming machine.
[0004] To solve the above problems, the utility model adopts the following solutions:
[0005] According to the double-locking-point linkage die locking mechanism of the utility model, the first locking claw includes a translation frame and a swing claw arranged on the translation frame; the translation frame is connected with the piston rod of the air cylinder and can be translated under the driving of the air cylinder; the swing claw has a driving part at one end and a claw head at the other end; the driving part and the claw head are arranged below the translation frame through a swing shaft and a torsional spring and can swing around the swing shaft; the top surface of the driving part is a slope, and a clamping slide block fixed on the die frame is arranged above the slope; the elastic force of the torsional spring makes the claw head move away from the translation frame; when the translation frame is translated by the air cylinder, the interaction between the slope of the top surface of the driving part and the clamping slide block makes the claw head move towards the translation frame.
[0006] Further, according to the die locking mechanism of the utility model, the second locking claw is a plate body with a horizontal plate surface, which is connected with the piston rod of the air cylinder, so that the second locking claw can be translated synchronously with the translation frame.
[0007] Further, according to the mold locking mechanism of the utility model, two swing grabs are arranged on the translation frame, and the two swing grabs are arranged on the two sides of the piston rod of the cylinder respectively.
[0008] According to the narrow mold frame of the utility model, the mold frame is provided with two mold locking mechanisms, and the two mold locking mechanisms are arranged on the two ends of the long strip-shaped mold frame.
[0009] The utility model discloses the technical effect as follows: the utility model discloses two double locking points linkage's mold locking mechanism sets up four locking points fixed molds in the length direction of narrow mold frame, guarantees the fixed mold while still not occupying extra space. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the whole structure schematic diagram of the mold locking mechanism of the utility model embodiment.
[0011] Figure 2 It is the working principle diagram of swing grab of the utility model embodiment.
[0012] Figure 3 It is the whole structure schematic diagram of the utility model embodiment.
[0013] Figure 4 It is the internal structure dissection diagram of mold frame of the utility model embodiment.
[0014] In the above-mentioned various figures,
[0015] 1 is mold frame, 11 is first lock mouth, 12 is second lock mouth, 13 is mold frame inner chamber, 14 is translation clamping block, 15 is T-shaped clamping groove;
[0016] 2 is mold locking mechanism, 21 is first lock, 211 is translation frame, 2111 is clamping position guide portion, 2112 is bearing block, 2113 is through -hole, 212 is swing grab, 2121 is drive portion, 2122 is grab head, 213 is swing axle, 214 is torsion spring, 22 is second lock, 23 is clamping position sliding block, 231 is arc bottom surface, 24 is mounting column, 29 is cylinder, 291 is piston rod;
[0017] 8 is mold, 81 is first clamping hook, 82 is second clamping hook;
[0018] 91 is guide column guide sleeve mechanism, 92 is lifting cylinder. DETAILED DESCRIPTION
[0019] The utility model will be made further detailed description in combination with the drawings.
[0020] Figure 3 An example of a narrow mold frame is composed of a mold frame 1 and two locking mechanisms 2 arranged on the mold frame 1, used for fixing the mold 8. The narrow mold frame is usually arranged above the forming machine frame, arranged on the top table of the forming machine frame through the guide column guide sleeve mechanism 1, and connected with the lifting cylinder 92, so that the whole narrow mold frame can carry the mold 8 to lift. The lifting cylinder 92 can be a gas cylinder or a hydraulic cylinder.
[0021] The locking mechanism 2, referring to Figure 1 , includes a first lock 21, a second lock 22 and a cylinder 29. Among them, the first lock 21 and the second lock 22 are sequentially connected to the piston rod 291 of the cylinder 29 to connect the cylinder 29, so that the whole locking mechanism 2 presents a long strip structure. Referring to Figure 4 , the mold frame 1 is a long strip box structure, which is internally provided with a mold frame inner cavity 13, and the bottom is provided with two first lock openings 11, and the vertical end faces of both ends are respectively provided with second lock openings 12. Two locking mechanisms 2 are arranged in the mold frame inner cavity 13 in opposite directions, and are arranged according to the long strip direction of the mold frame 1 and the locking mechanism 2. Two first locks 21 of the two locking mechanisms 2 are respectively located at two first lock openings 11, and two second locks 22 are respectively located at two second lock openings 12.
[0022] The first lock 21 includes a translation frame 211 and a swing grab 212 arranged on the translation frame 211. The translation frame 211 is connected to the piston rod 291 of the cylinder 29, so that the translation frame 211 can be translated under the drive of the cylinder 29. More specifically, the translation frame 211 includes a translation guide part 2111 and a bearing block 2112 connected to each other, and the mold frame inner cavity 13 of the mold frame 1 is constructed with a T-shaped clamping groove 15 through a translation clamping block 14. The translation guide part 2111 is clamped in the T-shaped clamping groove 15 through the T-shaped structure, so that the translation frame 211 can be horizontally translated along the T-shaped clamping groove 15. The translation frame 211 is provided with a swing shaft 213 through the two bearing blocks 2112 connected at the bottom of the translation guide part 2111, and the swing grab 212 is arranged through the swing shaft 213. Referring to Figure 2, one end of the swing grab 212 is a driving part 2121 and the other end is a grab head 2122. The driving part 2121 and the grab head 2122 are arranged below the translation frame 211 through a swing shaft 213 and a torsion spring 214 arranged on the swing shaft 213. The top surface of the driving part 2121 is a slope surface, and a clamping slide 23 fixed on the mold frame 1 is arranged above the slope surface. The clamping slide 23 is connected to the mold frame 1 through a mounting column 24 penetrating a through hole 2113 on the translation frame 211, and is fixed with the mold frame 1. The through hole 2113 on the translation frame 211 is large enough to allow the translation frame 211 to have a large stroke relative to the mounting column 24 without being blocked by the mounting column 24. The bottom of the clamping slide 23 is provided with an arc-shaped bottom surface 231 matched with the slope surface of the top surface of the driving part 2121. When the translation frame 211 is translated under the drive of the air cylinder 29, the swing grab 212 is driven to translate, and under the cooperation of the torsion spring 214, the grab head 2122 can be swung upward through the interaction between the slope surface of the top surface of the driving part 2121 and the clamping slide 23, so as to move towards the translation frame 211. More specifically, referring to Figure 2 the schematic diagram, when the swing grab 212 translates towards the M direction, the clamping slide 23 is pressed downward on the slope surface of the top surface of the driving part 2121 to form a pressing force, so that the swing grab 212 swings around the swing shaft 213, and the grab head 2122 swings upward in the direction indicated by the arrow G; when the swing grab 212 translates in the direction opposite to the M direction, the torsion spring 214 drives the swing grab 212 to swing around the swing shaft 213, so that the grab head 2122 falls. Thus, the first lock grab 21 forms two states: the first state is shown by the dashed line in the SU, in which the first lock grab 21 is in an unlocked state or a non-locking state, the grab head 2122 falls away from the translation frame 211; the second state is shown by the solid line in the SL, in which the first lock grab 21 is in a locking state, the grab head 2122 is lifted and close to the translation frame 211. In the two states, the horizontal position of the grab head 2122 also translates a distance along with the translation of the translation frame 211. Figure 2 Figure 2 the schematic diagram, when the swing grab 212 translates towards the M direction, the clamping slide 23 is pressed downward on the slope surface of the top surface of the driving part 2121 to form a pressing force, so that the swing grab 212 swings around the swing shaft 213, and the grab head 2122 swings upward in the direction indicated by the arrow G; when the swing grab 212 translates in the direction opposite to the M direction, the torsion spring 214 drives the swing grab 212 to swing around the swing shaft 213, so that the grab head 2122 falls. Thus, the first lock grab 21 forms two states: the first state is shown by the dashed line in the SU, in which the first lock grab 21 is in an unlocked state or a non-locking state, the grab head 2122 falls away from the translation frame 211; the second state is shown by the solid line in the SL, in which the first lock grab 21 is in a locking state, the grab head 2122 is lifted and close to the translation frame 211. In the two states, the horizontal position of the grab head 2122 also translates a distance along with the translation of the translation frame 211.
[0023] The second lock grab 22 is a plate body with a horizontal plate surface. More specifically, the second lock grab 22 is a square plate body connected to the end of the piston rod 291. Under the drive of the air cylinder 29, the second lock grab 22 can be extended or retracted into the second lock grab opening 12. When the second lock grab 22 is extended out of the second lock grab opening 12, it is in a locking state; when the second lock grab 22 is retracted into the second lock grab opening 12, it is in an unlocked state. In this embodiment, in order to enable the second lock grab 22 to bear a larger weight, the mold frame 1 is provided with smooth clamping plates above and below the second lock grab 22, so that the second lock grab 22 can be clamped between the smooth clamping plates and translated when the second lock grab 22 is translated, and the smooth clamping plates provide sufficient support.
[0024] The second lock catch 22 and the first lock catch 21 are two synchronous mechanisms, that is, under the driving of the cylinder 29, the mold locking state and the mold unlocking state of the second lock catch 22 and the first lock catch 21 are the same: when the second lock catch 22 extends out of the second lock catch opening 12, the catch head 2122 of the first lock catch 21 is lifted and close to the translation frame 211; when the second lock catch 22 is retracted into the second lock catch opening 12, the catch head 2122 of the first lock catch 21 is lowered and away from the translation frame 211. When the second lock catch 22 extends out of or retracts into the second lock catch opening 12, the horizontal translation distance of the translation frame 211 and the catch head 2122 is the same as the horizontal translation distance of the second lock catch 22.
[0025] The working principle of the embodiment is as follows: the top of the mold 8 matched with the narrow mold frame of the embodiment is provided with two first clamping hooks 81 and two second clamping hooks 82. The interval of the two second clamping hooks 82 is the same as the length of the mold frame 1. The first clamping hook 81 and the second clamping hook 82 are L-shaped plates which are inverted and centrally buckled. When the mold 8 needs to be fixed, the mold 8 is moved from bottom to top, the two second clamping hooks 82 are respectively aligned with the two end faces of the mold frame 1, when the horizontal part plate body of the L-shaped plate of the second clamping hook 82 passes the height of the second lock catch opening 12, the two first clamping hooks 81 also pass the first lock catch opening 11 at this time and enter the inner cavity 13 of the mold frame, and are opposite to the catch head 2122, then under the driving of the cylinder 29, the second lock catch 22 extends out of the second lock catch opening 12 and is clamped below the horizontal part plate body of the L-shaped plate of the second clamping hook 82, at the same time, the catch head 2122 is also clamped below the horizontal part plate body of the L-shaped plate of the first clamping hook 81, so as to hold the mold 8.
[0026] In addition, in the narrow mold frame, the two mold locking mechanisms 2 are linearly arranged on the central axis of the piston rod 291 of the cylinder 29, in order to enable the mold 8 to have sufficient holding force in the direction perpendicular to the central axis of the piston rod 291 of the cylinder 29, in addition to the second lock catch 22 configured as a square plate body, the embodiment is provided with two swing catches 212 below the translation frame 211 of the first lock catch 21, and the two swing catches 212 are symmetrical about the central axis of the piston rod 291 of the cylinder 29 and are respectively on the two sides of the piston rod 291 of the cylinder 29.
Claims
1. A dual lock site linked mold locking mechanism characterized by, The first lock grab includes a translation frame and a swing grab arranged on the translation frame; the translation frame is connected with the piston rod of the cylinder and can be translated under the drive of the cylinder; one end of the swing grab is a driving part and the other end is a grab head; the driving part and the grab head are arranged below the translation frame through a swing shaft and a torsion spring and can swing around the swing shaft; the top surface of the driving part is an inclined surface and a clamping slide block fixed on the mold frame is arranged above the inclined surface; the elastic force of the torsion spring makes the grab head move away from the translation frame; when the translation frame is translated under the drive of the cylinder, the interaction between the inclined surface of the top surface of the driving part and the clamping slide block makes the grab head move towards the translation frame.
2. The lockout mechanism of claim 1, wherein, The second lock grab is a plate body with a horizontal plate surface and is connected with the piston rod of the cylinder so that the second lock grab can be translated synchronously with the translation frame.
3. The lockout mechanism of claim 1, wherein, Two swing grabs are arranged on the translation frame and are arranged on the two sides of the piston rod of the cylinder respectively.
4. A narrow form factor frame, characterized by, The mold frame includes a long strip-shaped mold frame and two The mold clamping mechanism according to claim 1 or 2 or 3; two mold clamping mechanisms are arranged back to back and in the long strip direction of the mold frame; the first lock grab is located between the cylinder and the second lock grab; the bottom of the mold frame is provided with a first lock grab opening matched with the swing grab, and the two ends in the long strip direction are respectively provided with a second lock grab opening matched with the second lock grab; under the drive of the cylinder, the second lock grab can be extended out of or retracted into the second lock grab opening.