Telescopic die changing trolley

Abstract

The utility model relates to a telescopic mould changing trolley which comprises a trolley body, a plurality of mould changing stations are arranged on the trolley body, lifting guide rails, a push-pull mechanism used for pushing and pulling moulds and a telescopic mould changing platform used for stretching into an injection molding machine are arranged on the mould changing stations, and the mould changing platform comprises a linear module and a base. A roller assembly, a positioning assembly and a first guide rail are arranged on the base, the base is in sliding fit with the trolley through a sliding assembly, the linear module is installed on the trolley, the driving end of the linear module is connected with the base, the linear module is used for driving the base to horizontally move along the trolley, and the roller assembly and the positioning assembly are installed at the two ends of the base respectively. The first guide rail is installed on the base and located between the roller assembly and the positioning assembly. The mold changing trolley can directly extend into an injection molding machine to be in butt joint with a mold, so that the cost is saved, and the mold changing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold changing vehicles, in particular to a telescopic mold changing vehicle. Background Art

[0002] The mold changing trolley in the prior art includes a mold changing platform and a push-pull mechanism. The mold changing trolley moves one side of the machine tool, and then the push-pull mechanism hooks the mold and pulls it to the mold changing platform through the transition cantilever by installing a transition cantilever on one side of the machine tool. Since it is inconvenient or impossible to install a transition cantilever on small-tonnage machine tools such as injection molding machines, the existing mold changing trolley cannot be directly docked for mold changing operations, and another docking device is required for transition, which not only increases the time cost and configuration cost, but also greatly reduces the efficiency of mold changing. Utility Model Content

[0003] Based on this, a retractable mold changing trolley is provided, which can be directly extended into the injection molding machine to dock with the mold, which not only saves costs but also greatly improves the mold changing efficiency.

[0004] A telescopic mold changing trolley comprises a trolley, a plurality of mold changing stations are arranged on the trolley, and the mold changing stations are provided with lifting guide rails, a push-pull mechanism for pushing and pulling the molds, and a telescopic mold changing platform for extending into an injection molding machine.

[0005] The mold changing platform includes a linear module and a base, on which a roller assembly, a positioning assembly and a No. 1 guide rail are provided, the base and the trolley are slidably matched through a sliding assembly, the linear module is installed on the trolley, the driving end of the linear module is connected to the base, the linear module is used to drive the base to move horizontally along the trolley, the roller assembly and the positioning assembly are respectively installed at both ends of the base, and the No. 1 guide rail is installed on the base and is located between the roller assembly and the positioning assembly.

[0006] The mold changing station of the above-mentioned retractable mold changing trolley is composed of a lifting guide rail, a push-pull mechanism and a retractable mold changing platform. The linear module driving base drives the roller assembly, the positioning assembly and the No. 1 guide rail to move into the injection molding machine and dock with the mold placement platform. While moving, the lifting guide rail extends out to respectively abut against the push-pull mechanism and the No. 1 guide rail, and then the hook assembly of the push-pull mechanism moves along the No. 2 guide rail, the lifting guide rail and the No. 1 guide rail into the injection molding machine, and the mold is pulled onto the roller assembly and the positioning assembly. Then the linear module driving base drives the mold to move back to the trolley, and at the same time, the lifting guide rail is lowered to the bottom of the No. 1 guide rail, so that the No. 1 guide rail abuts against the No. 2 guide rail. The retractable mold changing trolley has a simple structure and is easy to use, which greatly improves the efficiency of mold changing.

[0007] In one of the embodiments, the roller assembly of the retractable mold changing trolley includes a fixed frame and a plurality of number one rollers, and the number one rollers are rotatably connected to the fixed frame.

[0008] In one of the embodiments, the positioning assembly of the retractable mold changing trolley includes a fixed frame and a plurality of No. 2 rollers, and the No. 2 rollers are rotatably connected to the fixed frame.

[0009] In one embodiment, the push-pull mechanism of the retractable mold-changing trolley includes a fixed part, a driving assembly, a hook assembly and a No. 2 guide rail. The fixed part is installed at one end of the trolley, one end of the No. 2 guide rail is installed on the fixed part, and the other end of the No. 2 guide rail abuts against the No. 1 guide rail. The driving assembly is installed on the fixed part, and the driving end of the driving assembly is connected to the hook assembly. The driving assembly is used to drive the hook assembly to move horizontally along the No. 2 guide rail and the No. 1 guide rail.

[0010] In one of the embodiments, the hook assembly of the retractable mold changing trolley includes a hook, a fixed seat and a No. 1 cylinder. The tail end of the hook is hinged to the fixed seat, and the No. 1 cylinder is installed on the top of the hook. The driving end of the No. 1 cylinder passes through the hook and abuts against the fixed seat. The No. 1 cylinder is used to drive the hook to move up and down around the fixed seat.

[0011] In one embodiment, the driving assembly of the retractable mold changing trolley includes a sprocket chain mechanism and a motor, the driving end of the motor is connected to the sprocket chain mechanism, the sprocket chain mechanism is connected to the hook assembly, and the motor is used to drive the sprocket chain mechanism to drive the hook assembly to move along the second guide rail, the lifting guide rail and the first guide rail.

[0012] In one of the embodiments, the lifting guide rails of the retractable mold changing trolley include a No. 2 cylinder and a No. 3 guide rail. The No. 2 cylinder is installed on the trolley, and the driving end of the No. 2 cylinder is connected to the No. 3 guide rail. The No. 3 guide rail is located below the No. 1 guide rail. A through hole for the No. 3 guide rail to pass through is provided on the base. The No. 2 cylinder is used to drive the No. 3 guide rail to move upward, so that the two ends of the No. 3 guide rail are respectively abutted against the No. 1 guide rail and the No. 2 guide rail.

[0013] In one of the embodiments, a limiting component for limiting the position of the mold is provided at one end of the positioning component of the retractable mold-changing trolley away from the push-pull mechanism.

[0014] In one embodiment, the limiting assembly of the retractable mold-changing trolley includes a No. 3 cylinder and a stopper, wherein the No. 3 cylinder is installed on the base, and the driving end of the No. 3 cylinder is connected to the stopper, and the No. 3 cylinder is used to drive the stopper to limit the mold.

[0015] The beneficial effects of this application are:

[0016] The present application provides a retractable mold-changing trolley, the mold-changing station of which is composed of a lifting guide rail, a push-pull mechanism and a retractable mold-changing platform. The linear module driving base drives the roller assembly, the positioning assembly and the No. 1 guide rail to move into the injection molding machine and dock with the mold placement platform. While moving, the lifting guide rail extends out to abut against the push-pull mechanism and the No. 1 guide rail respectively, and then the hook assembly of the push-pull mechanism moves into the injection molding machine along the No. 2 guide rail, the lifting guide rail and the No. 1 guide rail, and the mold is pulled onto the roller assembly and the positioning assembly. Then the linear module driving base drives the mold to move back to the trolley, and at the same time, the lifting guide rail is lowered to the bottom of the No. 1 guide rail, so that the No. 1 guide rail abuts against the No. 2 guide rail. The retractable mold-changing trolley has a simple structure and is easy to use, which greatly improves the efficiency of mold change.

[0017] By using several mold changing stations, the finished mold in the injection molding machine can be pulled out, and the trolley can be moved so that another mold changing station corresponds to the injection molding machine and the new mold can be pushed into the injection molding machine. This setting not only greatly improves the mold changing efficiency, but also saves time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a retractable mold changing trolley according to an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a mold changing station of a retractable mold changing trolley according to an embodiment of the present application from one perspective;

[0020] Figure 3 A schematic diagram of a mold changing station of a retractable mold changing trolley according to an embodiment of the present application from another perspective;

[0021] Figure 4 A schematic diagram of a mold changing platform of a retractable mold changing trolley according to an embodiment of the present application;

[0022] Figure 5 A schematic diagram of a push-pull mechanism of a retractable mold-changing trolley according to an embodiment of the present application;

[0023] in:

[0024] 1. Trolley; 2. Mold changing station; 3. Lifting guide rail; 4. Push-pull mechanism; 5. Mold changing platform; 51. Linear module; 52. Base; 53. Roller assembly; 54. Positioning assembly; 55. Guide rail No. 1; 56. Limit assembly; 561. Cylinder No. 3; 562. Stopper; 531. Fixed frame; 532. Roller No. 1; 541. Fixed frame; 542. Roller No. 2; 41. Fixed part; 42. Drive assembly; 43. Hook assembly; 44. Guide rail No. 2; 431. Hook; 432. Fixed seat; 433. Cylinder No. 1; 422. Motor; 31. Cylinder No. 2; 32. Guide rail No. 3. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 and Figure 3 As shown, an embodiment of the present application provides a retractable mold changing trolley, including a trolley 1, on which a plurality of mold changing stations 2 are arranged, and the mold changing stations 2 are provided with a lifting guide rail 3, a push-pull mechanism 4 for pushing and pulling the mold, and a retractable mold changing platform 5 for extending into the injection molding machine.

[0027] like Figure 2 As shown, the mold changing platform 5 includes a linear module 51 and a base 52, on which a roller assembly 53, a positioning assembly 54 and a No. 1 guide rail 55 are provided, the base 52 and the trolley 1 are slidably matched through a sliding assembly, the linear module 51 is installed on the trolley 1, the driving end of the linear module 51 is connected to the base 52, the linear module 51 is used to drive the base 52 to move horizontally along the trolley 1, the roller assembly 53 and the positioning assembly 54 are respectively installed at both ends of the base 52, and the No. 1 guide rail 55 is installed on the base 52 and is located between the roller assembly 53 and the positioning assembly 54.

[0028] Specifically, two mold changing stations 2 may be arranged on the trolley 1, a new mold is placed on one of the mold changing stations 2, and the other mold changing station 2 is used to pull out the completed mold in the injection molding machine.

[0029] The retractable mold changing station 2 is composed of a lifting guide rail 3, a push-pull mechanism 4 and a retractable mold changing platform 5. The linear module 51 drives the base 52 to drive the roller assembly 53, the positioning assembly 54 and the No. 1 guide rail 55 to move horizontally into the injection molding machine, so that the base 52 is docked with the mold placement platform. When the base 52 moves, the lifting guide rail 3 moves upward and respectively abuts against the push-pull mechanism 4 and the No. 1 guide rail 55. Then the hook assembly 43 of the push-pull mechanism 4 moves along the No. 2 guide rail 44, the lifting guide rail 3 and the No. 1 guide rail 55 into the injection molding machine, and the completed mold is pulled onto the roller assembly 53 and the positioning assembly 54. The positioning assembly 54 guides one end of the mold. Then the linear module 51 drives the base 52 to drive the mold to move back to the trolley 1. At the same time, the lifting guide rail 3 moves downward to the bottom of the No. 1 guide rail 55, so that the No. 1 guide rail 55 abuts against the No. 2 guide rail 44.

[0030] Then the trolley 1 moves to match another mold changing station 2 where a new mold is placed with the injection molding machine. The linear module 51 drives the base 52 to move the new mold horizontally into the injection molding machine, and the push-pull mechanism 4 pushes the mold into the platform of the injection molding machine.

[0031] Finally, the trolley 1 transfers the completed mold to the next station.

[0032] In the above structure, by setting a retractable mold changing station 2 to directly correspond to the platform for placing the mold in the injection molding machine, the mold can be pulled onto the mold changing station 2 without a transition cantilever, which not only saves costs but also improves the efficiency of mold changing.

[0033] like Figure 4 As shown, in one embodiment, the roller assembly 53 of the retractable mold changing trolley includes a fixed frame 531 and a plurality of number one rollers 532 , and the number one rollers 532 are rotatably connected to the fixed frame 531 .

[0034] Specifically, five first rollers 532 can be arranged to rotate around the fixed frame 531 respectively, and the push-pull mechanism 4 pulls one end of the mold onto the first roller 532, and the roller and the mold rotate in cooperation. This arrangement is conducive to the push-pull mechanism 4 smoothly pulling the mold to the mold changing station 2.

[0035] like Figure 4 As shown, in one embodiment, the positioning assembly 54 of the telescopic mold changing trolley includes a fixed frame 541 and a plurality of second rollers 542 , and the second rollers 542 are rotatably connected to the fixed frame 541 .

[0036] Specifically, five No. 2 rollers 542 can be arranged to rotate around the fixed frame 541 respectively, and the push-pull mechanism 4 pulls one end of the mold onto the No. 2 roller 542, and the No. 2 roller 542 rotates with the mold. Among them, the fixed frame 541 positions and guides one end of the mold. The arrangement of the No. 2 roller 542 facilitates the push-pull mechanism 4 to smoothly pull the mold to the mold changing station 2.

[0037] like Figure 5 As shown, in one embodiment, the push-pull mechanism 4 of the retractable mold changing trolley includes a fixed portion 41, a driving component 42, a hook component 43 and a second guide rail 44, the fixed portion 41 is mounted at one end of the trolley 1, one end of the second guide rail 44 is mounted on the fixed portion 41, the other end of the second guide rail 44 abuts against the first guide rail 55, the driving component 42 is mounted on the fixed portion 41, the driving end of the driving component 42 is connected to the hook component 43, and the driving component 42 is used to drive the hook component 43 to move horizontally along the second guide rail 44 and the first guide rail 55.

[0038] Specifically, the driving component 42 drives the hook component 43 to move horizontally along the No. 2 guide rail 44, the lifting guide rail 3 and the No. 1 guide rail 55, and the hook component 43 hooks the mold to pull the mold onto the roller assembly 53 and the positioning assembly 54, or the driving component 42 drives the hook component 43 to push the mold from the roller assembly 53 and the positioning assembly 54 to the platform of the injection molding machine.

[0039] This arrangement facilitates pulling the mold onto the mold changing station 2 , and also facilitates pushing the mold from the mold changing station 2 into the injection molding machine.

[0040] like Figure 5 As shown, in one embodiment, the hook assembly 43 of the retractable mold changing trolley includes a hook 431, a fixed seat 432 and a No. 1 cylinder 433. The tail end of the hook 431 is hinged to the fixed seat 432. The No. 1 cylinder 433 is installed on the top of the hook 431. The driving end of the No. 1 cylinder 433 passes through the hook 431 and abuts against the fixed seat 432. The No. 1 cylinder 433 is used to drive the hook 431 to move up and down around the fixed seat 432.

[0041] Specifically, when the driving component 42 drives the fixed seat 432 to drive the hook 431 and the No. 1 cylinder 433 to move to one side of the mold, the driving end of the No. 1 cylinder 433 presses against the fixed seat 432 to drive the hook 431 to move around the fixed seat 432 to fix the fixing hole of the mold, and then the driving component 42 drives the fixed seat 432 to drive the hook 431 to pull the mold to the mold changing station 2, and finally the No. 1 cylinder 433 drives the hook 431 to release the fixing hole of the mold, and the driving component 42 drives the fixed seat 432 to drive the hook 431 back to the initial position.

[0042] This arrangement facilitates the hook 431 to loosen and fix the fixing hole of the mold.

[0043] like Figure 5 As shown, in one embodiment, the driving assembly 42 of the retractable mold changing trolley includes a sprocket chain mechanism and a motor 422, the driving end of the motor 422 is connected to the sprocket chain mechanism, the sprocket chain mechanism is connected to the hook assembly 43, and the motor 422 is used to drive the sprocket chain mechanism to drive the hook assembly 43 to move along the second guide rail 44, the lifting guide rail 3 and the first guide rail 55.

[0044] Specifically, the motor 422 drives the sprocket chain to rotate, and the sprocket chain drives the hook assembly 43 to move along the second guide rail 44, the lifting guide rail 3 and the first guide rail 55 to push and pull the mold.

[0045] This arrangement facilitates driving the hook assembly 43 to move horizontally along the No. 2 guide rail 44 , the lifting guide rail 3 and the No. 1 guide rail 55 .

[0046] like Figure 3 As shown, in one of the embodiments, the lifting guide rail 3 of the retractable mold changing trolley includes a No. 2 cylinder 31 and a No. 3 guide rail 32, the No. 2 cylinder 31 is installed on the trolley 1, the driving end of the No. 2 cylinder 31 is connected to the No. 3 guide rail 32, the No. 3 guide rail 32 is located below the No. 1 guide rail 55, and the base 52 is provided with a through hole for the No. 3 guide rail 32 to pass through, the No. 2 cylinder 31 is used to drive the No. 3 guide rail 32 to move upward, so that the two ends of the No. 3 guide rail 32 are respectively abutted against the No. 1 guide rail 55 and the No. 2 guide rail 44.

[0047] Specifically, when the linear module 51 drives the base 52 to move horizontally toward the injection molding machine, the No. 1 guide rail 55 and the No. 2 guide rail 44 are separated by the distance of the No. 3 guide rail 32, and the No. 2 cylinder 31 drives the No. 3 guide rail 32 to move upward, so that the two ends of the No. 3 guide rail 32 are respectively abutted against the No. 1 cylinder 433 and the No. 2 cylinder 31, and then the hook assembly 43 of the push-pull mechanism 4 can pull the mold with the No. 2 guide rail 44, the No. 3 guide rail 32 and the No. 1 guide rail 55. When the mold is pulled onto the base 52, the hook assembly 43 moves back to the initial position, and then the No. 2 cylinder 31 drives the No. 3 guide rail 32 to move upward. When the linear module 51 drives the base 52 to move back, the No. 1 guide rail 55 abuts against the No. 2 guide rail 44.

[0048] This arrangement facilitates the connection between the No. 2 guide rail 44 and the movable No. 1 guide rail 55 .

[0049] like Figure 2 As shown, in one of the embodiments, a limiting component 56 for limiting the position of the mold is provided at one end of the positioning component 54 of the telescopic mold-changing trolley away from the push-pull mechanism 4 .

[0050] Specifically, after the mold is moved onto the roller assembly 53 and the positioning assembly 54, the limiting assembly 56 limits the mold so that the mold is fixed on the trolley 1. When the trolley 1 moves, the mold is prevented from falling off the trolley 1. This arrangement facilitates the fixing of the mold and effectively prevents the mold from falling.

[0051] like Figure 4 As shown, in one embodiment, the limiting assembly 56 of the retractable mold changing trolley includes a No. 3 cylinder 561 and a stopper 562, the No. 3 cylinder 561 is installed on the base 52, the driving end of the No. 3 cylinder 561 is connected to the stopper 562, and the No. 3 cylinder 561 is used to drive the stopper 562 to limit the mold.

[0052] Specifically, the No. 3 cylinder 561 and the stopper 562 are both located at one end of the fixed frame 541 . When the mold is pulled onto the positioning assembly 54 , the No. 3 cylinder 561 drives the stopper 562 to block the mold, so that the mold is fixed on the mold changing station 2 .

[0053] This arrangement facilitates blocking of the mold and effectively prevents the mold from falling during the movement of the trolley 1.

[0054] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A retractable mold changing trolley, characterized in that: The invention comprises a trolley (1), on which a plurality of mold changing stations (2) are arranged, and the mold changing stations (2) are provided with a lifting guide rail (3), a push-pull mechanism (4) for pushing and pulling the mold, and a retractable mold changing platform (5) for extending into the injection molding machine. The mold changing platform (5) comprises a linear module (51) and a base (52); a roller assembly (53), a positioning assembly (54) and a first guide rail (55) are arranged on the base (52); the base (52) and the trolley (1) are slidably matched through a sliding assembly; the linear module (51) is mounted on the trolley (1); a driving end of the linear module (51) is connected to the base (52); the linear module (51) is used to drive the base (52) to move horizontally along the trolley (1); the roller assembly (53) and the positioning assembly (54) are respectively mounted at two ends of the base (52); and the first guide rail (55) is mounted on the base (52) and is located between the roller assembly (53) and the positioning assembly (54).

2. The retractable mold changing trolley according to claim 1, characterized in that: The roller assembly (53) comprises a fixed frame (531) and a plurality of first rollers (532), wherein the first rollers (532) are rotatably connected to the fixed frame (531).

3. The retractable mold changing trolley according to claim 1, characterized in that: The positioning assembly (54) comprises a fixed frame (541) and a plurality of second rollers (542), wherein the second rollers (542) are rotatably connected to the fixed frame (541).

4. The retractable mold changing trolley according to claim 1, characterized in that: The push-pull mechanism (4) comprises a fixed part (41), a driving assembly (42), a hook assembly (43) and a No. 2 guide rail (44); the fixed part (41) is mounted on one end of the trolley (1); one end of the No. 2 guide rail (44) is mounted on the fixed part (41); the other end of the No. 2 guide rail (44) abuts against the No. 1 guide rail (55); the driving assembly (42) is mounted on the fixed part (41); the driving end of the driving assembly (42) is connected to the hook assembly (43); the driving assembly (42) is used to drive the hook assembly (43) to move horizontally along the No. 2 guide rail (44) and the No. 1 guide rail (55).

5. The retractable mold changing trolley according to claim 4, characterized in that: The hook assembly (43) comprises a hook (431), a fixing seat (432) and a first cylinder (433); the tail end of the hook (431) is hinged to the fixing seat (432); the first cylinder (433) is installed on the top of the hook (431); the driving end of the first cylinder (433) passes through the hook (431) and abuts against the fixing seat (432); the first cylinder (433) is used to drive the hook (431) to move up and down around the fixing seat (432).

6. The retractable mold changing trolley according to claim 4, characterized in that: The driving assembly (42) comprises a sprocket chain mechanism and a motor (422), wherein a driving end of the motor (422) is connected to the sprocket chain mechanism, and the sprocket chain mechanism is connected to the hook assembly (43), and the motor (422) is used to drive the sprocket chain mechanism to drive the hook assembly (43) to move along the second guide rail (44), the lifting guide rail (3) and the first guide rail (55).

7. The retractable mold changing trolley according to claim 1, characterized in that: The lifting guide rail (3) comprises a No. 2 cylinder (31) and a No. 3 guide rail (32). The No. 2 cylinder (31) is mounted on the trolley (1). The driving end of the No. 2 cylinder (31) is connected to the No. 3 guide rail (32). The No. 3 guide rail (32) is located below the No. 1 guide rail (55). The base (52) is provided with a through hole for the No. 3 guide rail (32) to pass through. The No. 2 cylinder (31) is used to drive the No. 3 guide rail (32) to move upward, so that the two ends of the No. 3 guide rail (32) are respectively in contact with the No. 1 guide rail (55) and the No. 2 guide rail (44).

8. The retractable mold changing trolley according to claim 1, characterized in that: A limiting component (56) for limiting the position of the mold is provided at one end of the positioning component (54) away from the push-pull mechanism (4).

9. The retractable mold changing trolley according to claim 8, characterized in that: The limiting assembly (56) comprises a No. 3 cylinder (561) and a stopper (562); the No. 3 cylinder (561) is installed on the base (52); the driving end of the No. 3 cylinder (561) is connected to the stopper (562); the No. 3 cylinder (561) is used to drive the stopper (562) to limit the mold.

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