Die changing device for blow molding machine
By designing the reinforced connection structure and automatic reinforcement system in the mold change device of the blow molding machine, the problem of mold instability caused by rope shaking in traditional devices is solved, and a more efficient and faster mold change process is achieved, and the equipment is extended Service life.
Patent Information
- Application Number
- CN202421294629.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-07
AI Technical Summary
During the transport process of the mold change device of the traditional blow molding machine, the rope is prone to shake left and right, causing the mold to be unable to maintain balance, which may cause the rope to fall off or age and break, and thus damage the mold.
A mold change device with a reinforced connection structure is designed. The threaded rod is snapped into the threaded hole by rotating the mounting rod, fixing the mold, and automatically reinforcing and rapid adjustment through the motor drive gear system to ensure that the mold remains balanced during the transfer process. .
It effectively avoids the problems of rope falling off and aging and breaking, ensures that the mold remains balanced during the transfer process, improves the efficiency and speed of mold replacement, and extends the service life of the equipment.
Smart Images
Figure CN222473335U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic production and processing, and discloses a mold changing device for a blow molding machine. Background Art
[0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. The tubular plastic preform obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while hot (or heated to a softened state). After the mold is closed, compressed air is immediately introduced into the preform to inflate the plastic preform and make it adhere tightly to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.
[0003] In the traditional mold changing process, most of the time, the rope is directly hung on the mold, and the mold is lifted by pulling the rope and then transferred to the blow molding machine. However, during the transfer process, the rope will swing left and right, and the mold cannot be balanced, which can easily cause the rope to fall off and cause the mold to fall and be damaged. In addition, the rope is prone to aging and breaking after long-term use.
[0004] Therefore, a mold changing device for a blow molding machine having a reinforced connection structure is needed. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art that the rope will swing left and right during transportation, making it impossible to keep the mold balanced, which can easily cause the rope to fall off and cause the mold to fall and be damaged, and the rope is prone to aging and breaking after long-term use, the utility model provides a mold changing device for a blow molding machine with a reinforced connection structure.
[0006] In order to achieve the purpose of having a reinforced connection structure, the utility model provides the following technical solutions: a mold changing device for a blow molding machine, comprising a cart, a casing, a mounting shell, a first motor, a rotating rod, a wire rope, a winding wheel, a mounting plate and a mold, the cart is fixedly connected to the casing, a mounting shell is slidably arranged on the casing, a first motor is installed inside the mounting shell, a rotating rod is rotatably arranged inside the mounting shell, an output shaft of the first motor is connected to the rotating rod, two wire ropes are wound around the rotating rod, two winding wheels are arranged on the mounting plate, one end of the wire rope is wound around the winding wheel, a mold is placed on the cart, and also includes a threaded rod and a mounting rod, a plurality of mounting rods are rotatably arranged on the mounting plate, a threaded rod is fixedly connected to the bottom of the mounting rod, and a plurality of threaded holes are opened on the mold.
[0007] In a preferred embodiment of the utility model, it also includes a second motor, a first gear and a second gear. The second motor is installed on the mounting plate, the output shaft of the second motor is connected to the first gear, the mounting rod is provided with a second gear, and the second gear is meshed with the first gear.
[0008] In a preferred embodiment of the utility model, a third motor, a transmission wheel and a transmission belt are also included. The third motor is installed inside the casing. The casing is rotatably provided with two transmission wheels. The output shaft of the third motor is connected to the rear transmission wheel. The two transmission wheels are jointly wrapped with a transmission belt, and the transmission belt crosses the installation shell.
[0009] In a preferred embodiment of the utility model, it also includes a clamping plate, a sliding shell and an elastic member. The sliding shell is arranged at the bottom of the mounting plate, and clamping plates are slidably arranged at both the front and rear ends of the sliding shell. Two elastic members are connected between the sliding shell and the clamping plate.
[0010] In a preferred embodiment of the utility model, a buffer pad is also included, and the buffer pad is embedded in the cart.
[0011] In a preferred embodiment of the utility model, guide rods are also included. Two guide rods are fixedly connected to the mounting shell, and the mounting plate slides on the guide rods.
[0012] Compared with the prior art, the utility model provides a mold changing device for a blow molding machine, which has the following beneficial effects: 1. The threaded rod is inserted into the threaded hole by rotating the mounting rod, thereby fixing the mold under the mounting plate, thereby strengthening the connection between the mounting plate and the mold, and keeping the mold balanced during the rising process, thereby avoiding damage to the mold caused by the rope falling off or aging and breaking during transportation.
[0013] 2. The output shaft of the second motor rotates to drive the first gear to rotate. Under the meshing action of the first gear and the second gear, the mounting rod is driven to rotate so that the threaded rod is stuck in the threaded hole, thereby achieving the purpose of automatic reinforcement and improving the efficiency of mold change.
[0014] 3. The output shaft of the third motor is used to drive the rear transmission wheel to rotate, and then the two transmission wheels are rotated together through the conveyor belt, so that the conveyor belt moves the mounting shell backwards, adjusts the position of the mounting plate, and aligns the threaded rod with the threaded hole on the mold, thereby increasing the speed of mold change.
[0015] 4. When the mold is not squeezing the clamping plate, the elastic member returns to its original state to move the clamping plates closer to each other, so that the clamping plates clamp the mold, thereby reinforcing the mold under the mounting plate to prevent the mold from falling off. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0017] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the housing, the mounting shell and the transmission wheel of the utility model.
[0018] Figure 3It is a three-dimensional cross-sectional schematic diagram of the installation shell, the first motor and the threaded rod of the utility model.
[0019] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the mold and the threaded hole of the utility model.
[0020] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the mounting plate, the second motor and the first gear of the utility model.
[0021] Figure 6 It is a three-dimensional structural schematic diagram of the housing, the mounting plate and the second motor of the utility model.
[0022] Figure 7 It is a three-dimensional structural schematic diagram of the mounting plate, the clamping plate and the second motor of the utility model.
[0023] Figure 8 It is a three-dimensional cross-sectional schematic diagram of the clamping plate, the sliding housing and the elastic member of the utility model.
[0024] Among them, the above-mentioned drawings include the following figure marks: 1. cart, 2. housing, 3. mounting shell, 4. first motor, 5. rotating rod, 6. wire rope, 601, winding wheel, 7. mounting plate, 8. mold, 9. threaded rod, 901, threaded hole, 902, mounting rod, 10. second motor, 11. first gear, 12. second gear, 13. third motor, 14. transmission wheel, 15. conveyor belt, 16. splint, 17. sliding shell, 18. elastic member, 19. buffer pad, 20. guide rod. DETAILED DESCRIPTION
[0025] 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.
[0026] Example 1: A mold changing device for a blow molding machine, see Figure 1-Figure 7, including a cart 1, a housing 2, a mounting housing 3, a first motor 4, a rotating rod 5, a steel wire rope 6, a winding wheel 601, a mounting plate 7 and a mold 8. The housing 2 is fixedly connected to the cart 1, the mounting housing 3 is slidably arranged on the housing 2, the first motor 4 is arranged inside the mounting housing 3 by bolt connection, the rotating rod 5 is rotatably arranged inside the mounting housing 3, the output shaft of the first motor 4 is connected to the rotating rod 5, two steel wire ropes 6 are wound around the rotating rod 5, two winding wheels 601 are arranged on the mounting plate 7, one end of the steel wire rope 6 is wound around the winding wheel 601, and a mold is placed on the cart 1. 8, also includes a threaded rod 9 and a mounting rod 902, four mounting rods 902 are rotatably arranged on the mounting plate 7, the four mounting rods 902 are rectangularly distributed on the mounting plate 7, the threaded rod 9 is fixedly connected to the bottom of the mounting rod 902, a plurality of threaded holes 901 are provided on the mold 8, a buffer pad 19 is embedded on the trolley 1, the buffer pad 19 reduces the pressure between the trolley 1 and the mold 8 to avoid indentations on the surface of the trolley 1, two guide rods 20 are fixedly connected to the mounting shell 3, the mounting plate 7 slides on the guide rods 20, so that the mounting plate 7 keeps balance during the rising process.
[0027] When the device is needed, the first motor 4 is turned on, and the output shaft of the first motor 4 rotates to drive the rotating rod 5 to rotate and unwind the wire rope 6, and then the mounting rod 902 rotates to make the threaded rod 9 fit into the threaded hole 901, thereby fixing the mold 8 under the mounting plate 7, thereby strengthening the connection between the mounting plate 7 and the mold 8, so that the mold 8 can maintain balance during the rising process, thereby preventing the rope from falling off or aging and breaking during the transportation process, causing damage to the mold 8, and then controlling the output shaft of the first motor 4 to reverse and make the rotating rod 5 reverse to rewind the wire rope 6, thereby driving the mold 8 to move upward, and then transporting the mold 8 to the blow molding machine for mold replacement.
[0028] Example 2: Based on Example 1, please refer to Figure 5 and Figure 7 A second motor 10 is provided on the mounting plate 7 by bolt connection, a first gear 11 is connected to the output shaft of the second motor 10 , a second gear 12 is provided on the mounting rod 902 , and the second gear 12 is meshed with the first gear 11 .
[0029] After the steel wire rope 6 is unwound, the second motor 10 is turned on. The output shaft of the second motor 10 rotates to drive the first gear 11 to rotate. Under the meshing action of the first gear 11 and the second gear 12, the mounting rod 902 is driven to rotate so that the threaded rod 9 is inserted into the threaded hole 901, thereby achieving the purpose of automatic reinforcement and improving the efficiency of mold changing. After the threaded rod 9 is completely inserted into the threaded hole 901, the second motor 10 is turned off.
[0030] See also Figure 2A third motor 13 is provided inside the casing 2 by bolt connection. The casing 2 is rotatably provided with two transmission wheels 14. The output shaft of the third motor 13 is connected to the rear transmission wheel 14. A conveyor belt 15 is wound around the two transmission wheels 14. The conveyor belt 15 crosses the mounting shell 3. The rotation of the conveyor belt 15 drives the mounting shell 3 to move.
[0031] When using the device, the third motor 13 is turned on, and the output shaft of the third motor 13 rotates to drive the rear transmission wheel 14 to rotate, and then the two transmission wheels 14 are rotated together through the conveyor belt 15, so that the conveyor belt 15 moves the mounting shell 3 backward, and then adjusts the position of the mounting plate 7, so that the threaded rod 9 is aligned with the threaded hole 901 on the mold 8, thereby increasing the speed of mold changing.
[0032] See also Figure 7 and Figure 8 A sliding housing 17 is provided at the bottom of the mounting plate 7 , and clamping plates 16 are slidably provided at both the front and rear ends of the sliding housing 17 , and two elastic members 18 are connected between the sliding housing 17 and the clamping plates 16 .
[0033] When the mold 8 is fixed under the mounting plate 7, the mold 8 will squeeze the clamping plate 16 to move away from each other, and the elastic member 18 will stretch accordingly. When the mold 8 is no longer squeezing the clamping plate 16, the elastic member 18 returns to its original state to move the clamping plate 16 to move closer to each other, thereby causing the clamping plate 16 to clamp the mold 8, thereby reinforcing the mold 8 under the mounting plate 7 to prevent the mold 8 from falling off.
[0034] Although 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 mold changing device for a blow molding machine, characterized in that: The invention comprises a trolley (1), a housing (2), a mounting housing (3), a first motor (4), a rotating rod (5), a wire rope (6), a winding wheel (601), a mounting plate (7) and a mold (8); the housing (2) is fixedly connected to the trolley (1); the housing (2) is slidably provided with the mounting housing (3); the first motor (4) is installed inside the mounting housing (3); the rotating rod (5) is rotatably provided inside the mounting housing (3); the output shaft of the first motor (4) is connected to the rotating rod (5) Two steel wire ropes (6) are wound around the rotating rod (5), two winding wheels (601) are arranged on the mounting plate (7), one end of the steel wire rope (6) is wound around the winding wheel (601), a mold (8) is placed on the cart (1), and also includes a threaded rod (9) and a mounting rod (902), a plurality of mounting rods (902) are rotatably arranged on the mounting plate (7), the bottom of the mounting rod (902) is fixedly connected to the threaded rod (9), and a plurality of threaded holes (901) are opened on the mold (8).
2. A mold changing device for a blow molding machine according to claim 1, characterized in that: It also includes a second motor (10), a first gear (11) and a second gear (12); the second motor (10) is mounted on the mounting plate (7); the output shaft of the second motor (10) is connected to the first gear (11); the mounting rod (902) is provided with the second gear (12); and the second gear (12) is meshed with the first gear (11).
3. A mold changing device for a blow molding machine according to claim 1, characterized in that: The invention also comprises a third motor (13), a transmission wheel (14) and a transmission belt (15). The third motor (13) is installed inside the housing (2). The housing (2) is rotatably provided with two transmission wheels (14). The output shaft of the third motor (13) is connected to the transmission wheel (14) at the rear. The two transmission wheels (14) are wound with a transmission belt (15) together. The transmission belt (15) crosses the installation housing (3).
4. A mold changing device for a blow molding machine according to claim 1, characterized in that: The mounting plate (7) further comprises a clamping plate (16), a sliding housing (17) and an elastic member (18). The sliding housing (17) is arranged at the bottom of the mounting plate (7). Clamping plates (16) are slidably arranged at both the front and rear ends of the sliding housing (17). Two elastic members (18) are connected between the sliding housing (17) and the clamping plate (16).
5. A mold changing device for a blow molding machine according to claim 1, characterized in that: It also includes a buffer pad (19), and the buffer pad (19) is embedded in the cart (1).
6. A mold changing device for a blow molding machine according to claim 1, characterized in that: It also includes guide rods (20). Two guide rods (20) are fixedly connected to the mounting shell (3), and the mounting plate (7) slides on the guide rods (20).