Mould driving device of multi-station plastic thermal forming machine

Abstract

The utility model provides a mould driving device of a multi-station plastic thermal forming machine, which comprises a rack, a support table and a support rod, two ends of the support rod are respectively fixedly connected with the rack and the support table, the rack is fixedly connected with a power motor, the support rod is slidably connected with an upper support plate for mounting an upper mould, and the upper support plate is fixedly connected with a lower support plate for mounting a lower mould. The supporting rod or the supporting table is connected with a lower supporting plate used for installing a lower die, a power shaft of the power motor is fixedly connected with a first connecting plate, the first connecting plate is connected with a supporting shaft parallel to the power shaft, and the supporting shaft is rotationally connected with a pull rod. The end, away from the supporting shaft, of the pull rod is connected with the upper supporting plate through a connecting rod structure, and the purposes of improving production efficiency and reducing production cost are achieved.

Description

Technical Field

[0001] The utility model relates to a thermoforming machine, in particular to a mold driving device of a multi-station plastic thermoforming machine. Background Art

[0002] At present, a Chinese patent with authorization announcement number CN214814088U discloses a hot pressing forming device, including a hot pressing forming bracket, a hot pressing forming motor, a hot pressing forming transmission screw, a hot pressing forming upper mold positioning plate, a heating tube, a hot pressing forming upper mold, a hot pressing forming lower mold and a hot pressing forming lower mold translation mechanism, and the hot pressing forming motor is installed on the hot pressing forming bracket.

[0003] However, this hot pressing molding device uses a screw to transmit the upper mold, which will cause the upper mold to move slowly, resulting in low production efficiency and difficulty in adapting to the needs of rapid production. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a mold driving device for a multi-station plastic thermoforming machine to achieve the purpose of improving production efficiency.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a mold driving device of a multi-station plastic thermoforming machine, comprising a frame, a support platform and a support rod, the two ends of the support rod are respectively fixedly connected to the frame and the support platform, the frame is fixedly connected with a power motor, the support rod is slidably connected with an upper support plate, the power shaft of the power motor is fixedly connected with a first connecting plate, the first connecting plate is connected with a support shaft arranged parallel to the power shaft, the support shaft is rotatably connected with a pull rod, the end of the pull rod away from the support shaft is connected to the upper support plate through a connecting rod structure, the support rod is slidably connected with a lower support plate, a cylinder assembly for driving the lower support plate to move is arranged on the support platform, and a mold is provided between the upper support plate and the lower support plate.

[0006] To implement the above technical solution, the power motor is started, the power shaft drives the first connecting plate to rotate, the first connecting plate drives the support shaft to rotate, the support shaft drives the pull rod to move, and the pull rod enables the upper support plate to move along the length direction of the support rod through the connecting rod structure. The upper support plate moves quickly, thereby achieving the purpose of improving production efficiency. The setting of the cylinder assembly can meet the purpose of rapid production and can reduce the mold production cost and the machinery production cost; the upper mold is connected to the upper support plate, and the lower mold is connected to the lower support plate, or the upper and lower positions of the upper support plate and the lower support plate are inverted, the lower mold is connected to the upper support plate, and the upper mold is connected to the lower support plate.

[0007] As a preferred solution of the utility model, the connecting rod structure includes a movable plate, a first connecting rod, a second connecting rod, and a rotating part. The movable plate is fixedly connected to a fixed part, the end of the pull rod away from the support shaft is hinged to the fixed part, the rotating part is hinged to the frame, one end of the first connecting rod is hinged to the rotating part, the other end of the first connecting rod is hinged to the movable plate, one end of the second connecting rod is hinged to the rotating part, and the other end of the second connecting rod is hinged to the upper support plate.

[0008] To implement the above technical solution, the power motor is started, the power shaft rotates forward, the first connecting plate drives the support shaft to move upward, the pull rod drives the movable plate to move upward through the fixed part, the first connecting rod moves upward, the rotating part flips toward the direction close to the movable plate, and the second connecting rod moves and drives the upper support plate to move upward along the support rod; similarly, when the power shaft rotates in the opposite direction, the upper support plate can be moved downward along the support rod. The upper support plate moves at a fast speed and with high pressure, and can meet a variety of production needs.

[0009] As a preferred solution of the utility model, a second connecting plate is connected to the support shaft, and the second connecting plate is rotatably connected to the frame via a pin shaft, and the axis of the pin shaft is colinearly arranged with the axis of the power shaft.

[0010] By implementing the above technical solution, the first connecting plate and the second connecting plate provide a better support to the support shaft, so that the movement of the support shaft is more stable.

[0011] As a preferred solution of the utility model, the cylinder assembly includes a vertical cylinder, a transverse cylinder, an upper support block, and a lower support block. The upper support block is fixed to the side of the lower support plate facing away from the upper support plate, and the vertical cylinder and the transverse cylinder are fixed to the support platform. The axis of the vertical axis of the vertical cylinder is parallel to the axis of the support rod and is fixedly connected to the lower support plate, the transverse axis of the transverse cylinder is fixedly connected to the lower support block, and the lower support block moves with the transverse axis and is located between the upper support block and the support platform.

[0012] To implement the above technical solution, the vertical cylinder is turned on, and the vertical shaft drives the lower support plate to move up. Subsequently, the transverse cylinder is turned on, and the transverse shaft extends, so that the lower support block is located below the upper support block, and the upper support plate moves downward, the upper mold and the lower mold are pressed tightly, and the upper support block and the lower support block are in contact with each other. At this time, the upper support block is supported by the lower support block, and the position of the lower support plate remains stable after being subjected to the pressure of the upper support plate. After the plastic product is formed, the transverse cylinder is started first, and the transverse shaft retracts. At this time, the upper support plate and the lower support plate are in a misaligned state, and the vertical cylinder is started again, and the vertical shaft retracts, so that the lower support plate and the lower mold move downward along the support rod. The lower support plate moves quickly, which can greatly improve the production efficiency. At the same time, due to the use of cylinders, the production cost is low.

[0013] As a preferred solution of the utility model, an auxiliary cylinder is fixedly connected to the support platform, an auxiliary shaft of the auxiliary cylinder is connected to the lower support plate, the auxiliary cylinder is close to the support rod, and the axis of the auxiliary shaft is parallel to the axis of the support rod.

[0014] To implement the above technical solution, the auxiliary cylinder is opened while the vertical cylinder is opened, and the auxiliary shaft and the vertical shaft are extended and retracted at the same time, so that the lower support plate moves more smoothly.

[0015] As a preferred solution of the utility model, the lower support block is connected to the lower auxiliary block via a transverse plate, the lower support plate is fixedly connected to the upper auxiliary block, and the upper auxiliary block is used to abut against the lower auxiliary block.

[0016] To implement the above technical solution, when the transverse cylinder is turned on, the lower support block drives the lower auxiliary block to move synchronously through the transverse plate, so that the lower support block corresponds to the upper support block, and at the same time, the lower auxiliary block corresponds to the upper auxiliary block. After the upper mold and the lower mold are pressed tightly, the lower support block contacts the upper support block and the lower auxiliary block contacts the upper auxiliary block through the downward pressure of the upper support plate, thereby having a better supporting effect on the lower support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure in the embodiment;

[0018] Figure 2 To reflect the structural diagram of the power motor;

[0019] Figure 3 This is a schematic diagram of the connection structure between the support shaft and the pull rod.

[0020] : Illustration symbols: 1. frame; 2. support platform; 3. support rod; 4. power motor; 41. power shaft; 42. first connecting plate; 43. support shaft; 44. second connecting plate; 45. pin shaft; 46. pull rod; 5. connecting rod structure; 51. movable plate; 52. first connecting rod; 53. second connecting rod; 54. rotating part; 6. cylinder assembly; 61. vertical cylinder; 611. vertical axis; 62. horizontal cylinder; 621. horizontal axis; 63. upper support block; 64. lower support block; 7. horizontal plate; 71. lower auxiliary block; 72. upper auxiliary block; 8. auxiliary cylinder; 81. auxiliary axis; 91. upper support plate; 92. lower support plate. DETAILED DESCRIPTION

[0021] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0022] A mold driving device for a multi-station plastic thermoforming machine comprises a frame 1, a support platform 2 and support rods 3. There are four support rods 3 and all are placed vertically, and the two ends of the support rods 3 are respectively fixedly connected to the frame 1 and the support platform 2. The support platform 2 is arranged horizontally. The four support rods 3 are respectively located at the four corners of the frame 1.

[0023] A horizontally placed power motor 4 is fixedly connected to the upper end of the frame 1, and the power motor 4 is a servo motor. An upper support plate 91 for mounting an upper die and a lower support plate 92 for mounting a lower die are slidably connected to the support rod 3. The upper support plate 91 is located above the lower support plate 92.

[0024] A first connecting plate 42 is fixedly connected to the power shaft 41 of the power motor 4, and a support shaft 43 arranged parallel to the axis of the power shaft 41 is fixedly connected to the first connecting plate 42. The support shaft 43 is arranged horizontally. A second connecting plate 44 is fixedly connected to the end of the support shaft 43 away from the support shaft 43, and the second connecting plate 44 is rotatably connected to the frame 1 through a pin shaft 45. The axis of the pin shaft 45 is arranged colinearly with the axis of the power shaft 41.

[0025] When the power motor 4 is started, the support shaft 43 can be moved along the axis of the power shaft 41. A pull rod 46 is rotatably connected to the support shaft 43, and one end of the pull rod 46 away from the support shaft 43 is connected to the upper support plate 91 through the connecting rod structure 5.

[0026] The connecting rod structure 5 includes a movable plate 51, a first connecting rod 52, a second connecting rod 53, and a rotating member 54. The movable plate 51 is located between the power motor 4 and the upper support plate 91. A fixing member is fixedly connected to the upper surface of the movable plate 51, and one end of the pull rod 46 away from the support shaft 43 is hinged to the fixing member. The upper end of the rotating member 54 is hinged to the frame 1. One end of the first connecting rod 52 is hinged to the side wall of the rotating member 54, and the other end of the first connecting rod 52 is hinged to the movable plate 51. The upper end of the second connecting rod 53 is hinged to the lower end of the rotating member 54, and the lower end of the second connecting rod 53 is hinged to the upper support plate 91.

[0027] The power motor 4 is started, the power shaft 41 rotates forward, the first connecting plate 42 drives the support shaft 43 to move upward, the pull rod 46 drives the movable plate 51 to move upward through the fixing member, and the first connecting rod 52 moves upward through the pulling force of the movable plate 51, the rotating member 54 flips toward the direction close to the movable plate 51, and the second connecting rod 53 moves and drives the upper support plate 91 to move upward along the support rod 3. The upper mold moves upward. Similarly, when the power shaft 41 rotates in the opposite direction, the upper support plate 91 can be moved downward along the support rod 3, and the upper mold moves downward. The upper support plate 91 moves fast and with high pressure.

[0028] A cylinder assembly 6 for driving the lower support plate 92 to move along the support rod 3 is arranged on the support platform 2. The cylinder assembly 6 includes a vertical cylinder 61, a horizontal cylinder 62, an upper support block 63, and a lower support block 64. The upper support block 63 is fixed to the side of the lower support plate 92 facing away from the upper support plate 91. The vertical cylinder 61 and the horizontal cylinder 62 are fixed on the support platform 2, the vertical cylinder 61 is arranged vertically, and the horizontal cylinder 62 is arranged horizontally.

[0029] The axis of the vertical axis 611 of the vertical cylinder 61 is parallel to the axis of the support rod 3 and is fixedly connected to the lower support plate 92. The vertical cylinder 61 is located at the center of the lower support plate 92. The horizontal axis 621 of the horizontal cylinder 62 is fixedly connected to the side wall of the lower support block 64. The lower support block 64 is fixedly connected to the lower auxiliary block 71 through the horizontally arranged horizontal plate 7, and the lower support plate 92 is fixedly connected to the upper auxiliary block 72.

[0030] The vertical cylinder 61 is turned on, the vertical shaft 611 extends and drives the lower support plate 92 to move upward until the lower support plate 92 moves to the stroke limit of the vertical cylinder 61. Then the horizontal cylinder 62 is turned on, the horizontal shaft 621 extends, so that the lower support block 64 is located directly below the upper support block 63, and the upper auxiliary block 72 is located directly above the lower auxiliary block 71. At this time, there is a distance of 50 degrees between the upper support block 63 and the lower support block 64, and there is a distance of 50 degrees between the upper auxiliary block 72 and the lower auxiliary block 71.

[0031] When the vertical cylinder 61 is turned on, the lower support plate 92 moves upward. When the horizontal cylinder 62 is turned on, the lower support block 64 is located directly below the upper support block 63, and the upper auxiliary block 72 is located directly above the lower auxiliary block 71. When the power motor 4 is turned on, the upper support plate 91 moves downward, the upper die and the lower die are pressed tightly, the lower support plate 92 is subjected to downward pressure, the lower support block 64 contacts the upper support block 63, and the upper auxiliary block 72 contacts the lower auxiliary block 71.

[0032] A vertically arranged auxiliary cylinder 8 is fixedly connected to the support platform 2 , an auxiliary shaft 81 of the auxiliary cylinder 8 is connected to the lower support plate 92 , the auxiliary cylinder 8 is close to the support rod 3 , and the axis of the auxiliary shaft 81 is parallel to the axis of the support rod 3 .

[0033] The upper support plate 91 and the lower support plate 92 move at a fast speed, and the production efficiency is high. In addition, since the lower support plate 92 is driven to move by a cylinder, the production cost is low.

[0034] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A mold driving device for a multi-station plastic thermoforming machine, comprising a frame (1), a support platform (2) and a support rod (3), wherein both ends of the support rod (3) are fixedly connected to the frame (1) and the support platform (2), respectively, and wherein: The frame (1) is fixedly connected to a power motor (4), the support rod (3) is slidably connected to an upper support plate (91), the power shaft (41) of the power motor (4) is fixedly connected to a first connecting plate (42), the first connecting plate (42) is connected to a support shaft (43) arranged parallel to the power shaft (41), the support shaft (43) is rotatably connected to a pull rod (46), the end of the pull rod (46) away from the support shaft (43) is connected to the upper support plate (91) through a connecting rod structure (5), the support rod (3) is slidably connected to a lower support plate (92), a cylinder assembly (6) for driving the lower support plate (92) to move is arranged on the support platform (2), and a mold is provided between the upper support plate (91) and the lower support plate (92).

2. The mold driving device of a multi-station plastic thermoforming machine according to claim 1 is characterized in that: The connecting rod structure (5) includes a movable plate (51), a first connecting rod (52), a second connecting rod (53), and a rotating member (54); the movable plate (51) is fixedly connected with a fixing member; one end of the pull rod (46) away from the support shaft (43) is hinged to the fixing member; the rotating member (54) is hinged to the frame (1); one end of the first connecting rod (52) is hinged to the rotating member (54); the other end of the first connecting rod (52) is hinged to the movable plate (51); one end of the second connecting rod (53) is hinged to the rotating member (54); and the other end of the second connecting rod (53) is hinged to the upper support plate (91).

3. The mold driving device of a multi-station plastic thermoforming machine according to claim 1 is characterized in that: The support shaft (43) is connected to a second connecting plate (44), and the second connecting plate (44) is rotatably connected to the frame (1) via a pin shaft (45), and the axis of the pin shaft (45) is colinearly arranged with the axis of the power shaft (41).

4. A mold driving device for a multi-station plastic thermoforming machine according to claim 1 or 3, characterized in that: The cylinder assembly (6) comprises a vertical cylinder (61), a transverse cylinder (62), an upper support block (63), and a lower support block (64); the upper support block (63) is fixed to the side of the lower support plate (92) facing away from the upper support plate (91); the vertical cylinder (61) and the transverse cylinder (62) are fixed to the support platform (2); the axis of the vertical axis (611) of the vertical cylinder (61) is parallel to the axis of the support rod (3) and is fixedly connected to the lower support plate (92); the transverse axis (621) of the transverse cylinder (62) is fixedly connected to the lower support block (64); the lower support block (64) moves with the transverse axis (621) and is located between the upper support block (63) and the support platform (2).

5. The mold driving device of a multi-station plastic thermoforming machine according to claim 4 is characterized in that: An auxiliary cylinder (8) is fixedly connected to the support platform (2); an auxiliary shaft (81) of the auxiliary cylinder (8) is connected to the lower support plate (92); the auxiliary cylinder (8) is close to the support rod (3); and the axis of the auxiliary shaft (81) is parallel to the axis of the support rod (3).

6. The mold driving device of a multi-station plastic thermoforming machine according to claim 4 is characterized in that: The lower support block (64) is connected to a lower auxiliary block (71) via a transverse plate (7), and the lower support plate (92) is fixedly connected to an upper auxiliary block (72), and the upper auxiliary block (72) is used to abut against the lower auxiliary block (71).

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