Automatic bag holding machine for packaging materials

Abstract

The invention discloses a packaging material automatic bag holding machine which comprises a walking frame, guide rods, a driving air cylinder, a connecting rod mechanism, swing arms, clamping plates and a holding seat, the two guide rods are arranged in parallel, the two ends of the walking frame are connected to the guide rods in a sliding mode, the two swing arms are arranged on the two guide rods in a sleeving mode respectively, and the driving air cylinder is in linkage with the two swing arms through the connecting rod mechanism. The two swing arms are driven to rotate in the same direction or in the opposite directions, and each swing arm is provided with a clamping plate and a holding seat. Automation of the carrying process of a packaging rear assembly line can be achieved, the production efficiency is improved, the whole device achieves simultaneous opposite or back-to-back rotation of the first swing arms in a mechanical linkage mode, then bag holding clamping or loosening action is achieved, movement of the first swing arms is achieved through a connecting rod mechanism and a driving air cylinder, a linkage mechanism is greatly simplified, and the production cost is reduced. And moreover, space occupation is reduced, maintenance and overhaul are convenient, the structure is simple, the clamping plates and the holding seats are adjustable structures, the applicability is wide, structural adjustment is convenient, and the using effect is good.

Description

Technical Field

[0001] The invention relates to an automatic bag holding machine for packaging materials. Background Art

[0002] After the packaging bag is filled with materials, it needs to be transported by a bag holding machine. The existing bag holding machine has a complex mechanism design to realize the bag holding action, and the linkage structure occupies a large space, which is troublesome to repair and has high maintenance costs. Therefore, it is necessary to improve the existing technology to solve the shortcomings of the existing technology. Summary of the invention

[0003] The present invention provides an automatic bag holding machine for packaging materials in order to solve the problems existing in the above-mentioned prior art.

[0004] The technical solutions adopted in the present invention are: An automatic bag holding machine for packaging materials comprises a traveling frame, a guide rod, a driving cylinder, a connecting rod mechanism, a swing arm, a clamp and a holding seat. Two guide rods are arranged in parallel, and both ends of the traveling frame are slidably connected to the guide rods. Two swing arms are respectively sleeved on the two guide rods. The driving cylinder links the two swing arms through the connecting rod mechanism to drive the two swing arms to rotate towards or away from each other at the same time. A clamp and a holding seat are provided on each swing arm.

[0005] Furthermore, the connecting rod mechanism includes a swivel arm and a connecting arm, the swivel arm is rotatably connected to the walking frame, one end of the two connecting arms is respectively hinged to the two ends of the swivel arm, and the other end is respectively hinged to the two swing arms, the cylinder seat of the driving cylinder is hinged to the walking frame, and the cylinder shaft is hinged to one of the connecting arms.

[0006] Furthermore, a guide wheel unit is provided on the guide rod, and the guide wheel unit includes a wheel seat, an upper guide wheel and a lower guide wheel. The upper guide wheel and the lower guide wheel are both rotatably connected to the wheel seat, and the guide rod is placed between the upper guide wheel and the lower guide wheel. A connecting rod is fixed between the wheel seat and the walking frame.

[0007] Furthermore, the upper guide wheel is a conical wheel, and the lower guide wheel is a cylindrical wheel.

[0008] Furthermore, a mounting frame is hinged at the bottom end of the swing arm, and the clamping plate and the holder are mounted on the mounting frame.

[0009] Furthermore, the clamp is an adjustable structure, including a first clamp, a second clamp and an adjuster. The first clamp and the second clamp are arranged in parallel up and down. The first clamp is fixedly connected to the mounting frame, and the second clamp is connected to the first clamp through the adjuster. The gap between the first clamp and the second clamp is adjustable through the adjuster.

[0010] Furthermore, the adjuster includes a connecting plate, a spring and a locking pin, the upper and lower ends of the connecting plate are hinged on the first clamping plate and the second clamping plate respectively, the locking pin passes through the connecting plate and is elastically supported on the first clamping plate by the spring, a spline portion is provided on the locking pin, and a spline groove matched with the spline portion is provided on the connecting plate, under the elastic force of the spring, the spline portion cooperates with the spline groove and limits the rotation between the connecting plate and the first clamping plate.

[0011] Furthermore, a mounting hole is provided on the first clamping plate, a locking pin is inserted into the mounting hole, rubber pads are fixed on the inner end surfaces of the first clamping plate and the second clamping plate, a spring sleeve is provided on the locking pin, and the inner end surface of the locking pin is pressed against the rubber pad, and the spline portion is provided on the outer side of the locking pin.

[0012] Furthermore, each holder includes an arc piece and a mounting plate, waist-shaped holes are provided on both sides of the mounting plate, and the two arc pieces are fixed to the waist-shaped holes on both sides of the mounting plate by bolts.

[0013] Furthermore, a vertical rod is provided on the mounting frame, and the mounting height of the mounting plate on the vertical rod is adjustable.

[0014] The present invention has the following beneficial effects: The present invention can realize the automation of the handling process of the post-packaging assembly line and improve production efficiency. The whole device realizes the simultaneous rotation of the first swing arms toward or away from each other through mechanical linkage, thereby realizing the bag clamping or releasing action. The movement of the first swing arm is realized by a connecting rod mechanism and a driving cylinder, which greatly simplifies the linkage mechanism, reduces space occupation, facilitates maintenance and repair, has a simple structure, and the splint and the holder are adjustable structures. It has wide applicability, convenient structural adjustment, and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the present invention.

[0016] Figure 2 This is a structural diagram of the present invention.

[0017] Figure 3 It is a partial structural diagram of the present invention.

[0018] Figure 4 This is the structural diagram of the regulator. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 4 The present invention discloses an automatic bag holding machine for packaging materials, comprising a walking frame 1, a guide rod 2, a driving cylinder 3, a connecting rod mechanism 4, a first swing arm, a clamping plate 6 and a holding seat 7.

[0021] Two guide rods 2 are arranged in parallel, and both ends of the walking frame 1 are slidably connected to the guide rods 2. Two first swing arms are respectively mounted on the two guide rods 2 and can rotate relative to the corresponding guide rods 2. The driving cylinder 3 is hinged on the walking frame 1. The driving cylinder 3 links the two first swing arms through the connecting rod mechanism 4, driving the two first swing arms to rotate towards or away from each other at the same time. A splint 6 and a seat 7 are provided on each first swing arm.

[0022] The connecting rod mechanism 4 includes a rotating arm 41 and a connecting arm 42. The middle part of the rotating arm 41 is rotatably connected to the traveling frame 1. One end of the two connecting arms 42 is respectively hinged to the two ends of the rotating arm 41, and the other end is respectively hinged to the two first swing arms. The cylinder seat of the driving cylinder 3 is hinged to the traveling frame 1, and the cylinder shaft is hinged to one of the connecting arms 42. The cylinder shaft of the driving cylinder 3 is extended, so that the top ends of the two first swing arms are away from each other and the bottom ends are close to each other.

[0023] The sliding of the walking frame 1 on the guide rod 2 is to directly plug the guide rod 2 onto the walking frame 1. To further ensure the sliding stability of the walking frame 1 on the guide rod 2, a guide wheel unit 8 is fixed onto the walking frame 1. The guide wheel unit 8 includes a wheel seat 81, an upper guide wheel 82 and a lower guide wheel 83. The upper guide wheel 82 and the lower guide wheel 83 are both rotatably connected to the wheel seat 81. The guide rod 2 is inserted between the upper guide wheel 82 and the lower guide wheel 83. After the walking frame 1 is inserted onto the guide rod 2, the upper guide wheel 82 is supported on the guide rod 2. A connecting rod 84 is fixed between the wheel seat 81 and the walking frame 1 to fix the guide wheel unit 8 and the walking frame 1 together. A sleeve 50 is provided at the middle of the first swing arm. The guide rod 2 is inserted into the sleeve 50. After the first swing arm is assembled, the sleeve 50 is placed between the guide wheel unit 8 and the walking frame 1.

[0024] The upper guide wheel 82 is a conical wheel, and the conical wheel of the upper guide wheel 82 cooperates with the guide rod 2 to ensure the walking stability of the guide wheel unit 8, and the lower guide wheel 83 is a cylindrical wheel.

[0025] The walking frame 1 on the guide rod 2 can be driven by the cylinder 11 (such as Figure 1 ), or it can be driven by the motor 12 (such as Figure 2 ), when walking with a small stroke, the cylinder 11 is used, and the cylinder shaft of the cylinder 11 is fixed to the walking frame 1. When walking with a large stroke, the motor drive is adopted. When the motor drive is adopted, the motor 12 is fixed on the walking frame 1 and drives one of the upper guide wheels 82 to rotate. In order to ensure the matching effect between the upper guide wheel 82 and the guide rod 2, friction patterns are provided on the guide rod 2 and the upper guide wheel 82 to increase the friction wheel and ensure the walking effect.

[0026] To facilitate the installation of the clamping plate 6 and the holder 7, a mounting frame 9 is hinged at the bottom end of each first swing arm, and the clamping plate 6 and the holder 7 are installed on the mounting frame 9. Since the mounting frame 9 and the first swing arm 5 are in an articulated relationship, it is necessary to keep the mounting frame 9 in a horizontal rotation state during assembly, so a second swing arm 52 is also hinged on the mounting frame 9, and the top end of the second swing arm 52 is hinged to the connecting rod 84. The first swing arm 5, the second swing arm 52, the mounting frame 9, the guide rod 2 and the connecting rod 84 together form a four-bar structure.

[0027] In actual use, the bag opening position of each bag is different. In order to be suitable for clamping bags of different models, the splint 6 in the present invention is an adjustable structure, including a first splint 61, a second splint 62 and an adjuster 63. The first splint 61 and the second splint 62 are arranged parallel to each other up and down, the first splint 61 is fixedly connected to the mounting frame 9, and the second splint 62 is connected to the first splint 61 through the adjuster 63. The adjuster 63 is a manual adjustment structure, and the gap between the first splint 61 and the second splint 62 can be adjusted through the adjuster 63.

[0028] The regulator 63 in the present invention includes a connecting plate 631, a spring 632 and a locking pin 633. The upper and lower ends of the connecting plate 631 are respectively arranged on the outer sides of the first clamping plate 61 and the second clamping plate 62. The locking pin 633 passes through the connecting plate 631 and is elastically supported on the first clamping plate 61 by the spring 632. The connecting plate 631 can rotate relative to the locking pin 633. The bottom end of the connecting plate 631 is hinged to the second clamping plate 62 through a pin shaft.

[0029] The locking pin 633 is provided with a spline portion 634, and the connecting plate 631 is provided with a spline groove matched with the spline portion 634. Under the elastic force of the spring 632, the spline portion 634 cooperates with the spline groove and limits the rotation between the connecting plate 631 and the first clamping plate 61. When the connecting plate 631 needs to rotate relative to the locking pin 633, the locking pin 633 is pulled outward to disengage the spline portion 634 from the spline groove. When the locking pin 633 is pulled outward, the spring 632 is compressed.

[0030] In order to facilitate the installation of the spring, a mounting hole is provided on the first clamping plate 61, and the locking pin 633 is inserted into the mounting hole. A spline groove is provided on the outer hole wall of the mounting hole.

[0031] A rubber pad 635 is fixed on the inner end surface of the first clamping plate 61 and the second clamping plate 62. The rubber pad 635 is used to seal the inner end of the mounting hole and protect the bag. The spring 632 is sleeved on the locking pin 633. A step surface is provided on the inner side of the locking pin 633. The inner side of the spring 632 abuts against the step surface and the inner end surface of the locking pin 633 abuts against the rubber pad 635. The spline portion 634 is provided on the outer side of the locking pin 633.

[0032] The present invention changes the contact surface between the clamping plate 6 and the bag by adjusting the gap between the first clamping plate 61 and the second clamping plate 62, so that the clamping plate 6 can be applied to packaging bags of different sizes.

[0033] Each holder 7 in the present invention includes an arc piece 71 and a mounting plate 72. Waist-shaped holes are provided on both sides of the mounting plate 72. The two arc pieces 71 are fixed to the waist-shaped holes on both sides of the mounting plate 72 by bolts. The relative distance between the two arc pieces 71 is adjustable, which can be applied to packaging bags of different sizes. A vertical rod 91 is provided on the mounting frame 9, and the mounting height of the mounting plate 72 on the vertical rod 91 is adjustable, which can be applied to packaging bags of different sizes.

[0034] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. An automatic bag holding machine for packaging materials, characterized by: The utility model comprises a traveling frame (1), a guide rod (2), a driving cylinder (3), a connecting rod mechanism (4), a swing arm (5), a clamping plate (6) and a holder (7), wherein two guide rods (2) are arranged in parallel, two ends of the traveling frame (1) are slidably connected to the guide rods (2), two swing arms (5) are respectively sleeved on the two guide rods (2), the driving cylinder (3) links the two swing arms (5) through the connecting rod mechanism (4), and drives the two swing arms (5) to rotate towards or away from each other at the same time, and each swing arm (5) is provided with a clamping plate (6) and a holder (7).

2. The automatic bag holding machine for packaging materials as claimed in claim 1, characterized in that: The connecting rod mechanism (4) comprises a rotating arm (41) and a connecting arm (42); the rotating arm (41) is rotatably connected to the traveling frame (1); one end of two connecting arms (42) are respectively hinged to two ends of the rotating arm (41); and the other ends are respectively hinged to two swing arms (5); a cylinder seat of the driving cylinder (3) is hinged to the traveling frame (1); and a cylinder shaft is hinged to one of the connecting arms (42).

3. The automatic bag holding machine for packaging materials as claimed in claim 1, characterized in that: A guide wheel unit (8) is provided on the guide rod (2), and the guide wheel unit (8) comprises a wheel seat (81), an upper guide wheel (82) and a lower guide wheel (83), the upper guide wheel (82) and the lower guide wheel (83) are both rotatably connected to the wheel seat (81), and the guide rod (2) is disposed between the upper guide wheel (82) and the lower guide wheel (83), and a connecting rod (84) is fixed between the wheel seat (81) and the walking frame (1).

4. The automatic bag holding machine for packaging materials as claimed in claim 3, characterized in that: The upper guide wheel (82) is a conical wheel, and the lower guide wheel (83) is a cylindrical wheel.

5. The automatic bag holding machine for packaging materials as claimed in claim 1, characterized in that: The bottom end of the swing arm (5) is hingedly connected to a mounting frame (9), and the clamping plate (6) and the holder (7) are mounted on the mounting frame (9).

6. The automatic bag holding machine for packaging materials as claimed in claim 5, characterized in that: The clamping plate (6) is an adjustable structure, comprising a first clamping plate (61), a second clamping plate (62) and an adjuster (63); the first clamping plate (61) and the second clamping plate (62) are arranged in parallel up and down; the first clamping plate (61) is fixedly connected to the mounting frame (9); the second clamping plate (62) is connected to the first clamping plate (61) via the adjuster (63); and the gap between the first clamping plate (61) and the second clamping plate (62) is adjustable via the adjuster (63).

7. The automatic bag holding machine for packaging materials as claimed in claim 6, characterized in that: The regulator (63) comprises a connecting plate (631), a spring (632) and a locking pin (633). The upper and lower ends of the connecting plate (631) are hinged to the first clamping plate (61) and the second clamping plate (62), respectively. The locking pin (633) passes through the connecting plate (631) and is elastically supported on the first clamping plate (61) by the spring (632). A spline portion (634) is provided on the locking pin (633). A spline groove matched with the spline portion (634) is provided on the connecting plate (631). Under the elastic force of the spring (632), the spline portion (634) matches with the spline groove and limits the rotation between the connecting plate (631) and the first clamping plate (61).

8. The automatic bag holding machine for packaging materials as claimed in claim 7, characterized in that: The first clamping plate (61) is provided with a mounting hole, and the locking pin (633) is inserted into the mounting hole. Rubber pads (635) are fixed to the inner end surfaces of the first clamping plate (61) and the second clamping plate (62). The spring (632) is sleeved on the locking pin (633) and the inner end surface of the locking pin (633) is pressed against the rubber pad (635). The spline portion (634) is arranged on the outer side of the locking pin (633).

9. The automatic bag holding machine for packaging materials as claimed in claim 5, characterized in that: Each holder (7) comprises an arc piece (71) and a mounting plate (72). Waist-shaped holes are provided on both sides of the mounting plate (72). The two arc pieces (71) are fixed to the waist-shaped holes on both sides of the mounting plate (72) by bolts.

10. The automatic bag holding machine for packaging materials as claimed in claim 9, characterized in that: The mounting frame (9) is provided with a vertical rod (91), and the mounting height of the mounting plate (72) on the vertical rod (91) is adjustable.

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