Swing arm assembly for packaging bag conveying

Abstract

The utility model relates to a packaging bag conveying swing arm assembly which comprises a side plate and a plurality of swing arm units, each swing arm unit comprises a swing arm driving shaft and at least one swing arm driven shaft which are rotationally arranged on the side plate, and swing arm rods are fixedly arranged at the two ends of each swing arm driving shaft and the two ends of each swing arm driven shaft. A swing arm connecting plate is hinged between every two adjacent swing arm rods at the same end, clamping jaw units are arranged at the two ends of each swing arm connecting plate, and the swing arm driving shaft is driven to rotate in a reciprocating mode so as to drive the clamping jaw units to convey packaging bags in a progressive mode. The swing arm driving shaft and the swing arm driven shaft are arranged, the swing arm driving shaft and the swing arm driven shaft are restrained through the connecting plate to form a parallelogram, so that the clamping jaw units on the swing arm driving shaft and the swing arm driven shaft on the same swing arm unit move at the same time, control over the swing path of the swing arm unit is simpler, and the swing arm unit is more stable. In addition, only the swing arm driving shaft needs to be driven, the needed driving structures are fewer, and space optimization is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of packing machine, concretely relates to a swing arm subassembly for packing bag conveying. BACKGROUND

[0002] The FFS packing machine is a kind of integrated packing device for forming (FORM), filling (FILL) and sealing (SEAL), and the bag opening needs to be upwardly conveyed before and after filling materials to facilitate positioning and filling, and the existing conveying device generally uses swing arms to drive clamping jaws to convey.

[0003] In the prior art, a set of swing arms drives a pair of clamping jaws to convey, and many steps such as bag taking, material loading, sealing and cooling are required in the conveying process, so a plurality of independent swing arms need to be provided, the driving structure occupies a large space, the design complexity is high, and the design requirements of the swing arms driven independently in swing range, swing space and driving program are more stringent, thereby causing high equipment manufacturing and design cost. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the above problems and provides a swing arm subassembly for packing bag conveying, which is simple in structure and reasonable in design.

[0005] The utility model achieves the above-mentioned purposes by the following technical solutions:

[0006] A swing arm subassembly for packing bag conveying includes side plates and a plurality of swing arm units, each swing arm unit includes a swing arm driving shaft and at least one swing arm driven shaft rotatably arranged on the side plate, both ends of the swing arm driving shaft and the swing arm driven shaft are fixedly provided with swing arm rods, and swing arm connecting plates are hingedly arranged between adjacent swing arm rods at the same end, both ends of the swing arm connecting plate are provided with clamping jaw units, and the swing arm driving shaft is driven to rotate back and forth to drive the clamping jaw units to convey the packing bag.

[0007] As a further optimization scheme of the utility model, each swing arm unit has two swing arm driven shafts, each swing arm unit has two pairs of clamping jaw units, two clamping jaw units can be simultaneously driven to operate without interference, a complex control program is not required, a loading structure can be arranged between the two swing arm units, the loading structure has four pairs of clamping jaws, and the loading structure can cooperate with the fixed structure in other structures to assist other devices to complete the steps of filling, sealing and cooling in the conveying of the packing bag.

[0008] As a further optimization scheme of the utility model, the driving element is set on the side plate, the output end of the driving element is provided with a swing arm crankshaft, the swing arm crankshaft is hinged with a swing arm connecting rod, and the swing arm driving shaft is fixedly provided with a driving arm hinged with the swing arm connecting rod, the scheme realizes the reciprocating rotation of the swing arm driving shaft through the swing arm crankshaft, the swing arm connecting rod and the driving arm, and the structure occupies a small space.

[0009] As a further optimization scheme of the utility model, the driving element is set on the side plate, the output end of the driving element is provided with a swing arm crankshaft, the swing arm crankshaft is hinged with a swing arm connecting rod, and the swing arm driving shaft is fixedly provided with a driving arm hinged with the swing arm connecting rod, the scheme realizes the reciprocating rotation of the swing arm driving shaft through the swing arm crankshaft, the swing arm connecting rod and the driving arm, and the structure occupies a small space.

[0010] As a further optimization scheme of the utility model, the driving element is set on the side plate, the output end of the driving element is provided with a swing arm crankshaft, the swing arm crankshaft is hinged with a swing arm connecting rod, and the swing arm driving shaft is fixedly provided with a driving arm hinged with the swing arm connecting rod, the scheme realizes the reciprocating rotation of the swing arm driving shaft through the swing arm crankshaft, the swing arm connecting rod and the driving arm, and the structure occupies a small space.

[0011] As a further optimization scheme of the utility model, the driving element is set on the side plate, the output end of the driving element is provided with a swing arm crankshaft, the swing arm crankshaft is hinged with a swing arm connecting rod, and the swing arm driving shaft is fixedly provided with a driving arm hinged with the swing arm connecting rod, the scheme realizes the reciprocating rotation of the swing arm driving shaft through the swing arm crankshaft, the swing arm connecting rod and the driving arm, and the structure occupies a small space.

[0012] As a further optimization scheme of the utility model, the driving element is set on the side plate, the output end of the driving element is provided with a swing arm crankshaft, the swing arm crankshaft is hinged with a swing arm connecting rod, and the swing arm driving shaft is fixedly provided with a driving arm hinged with the swing arm connecting rod, the scheme realizes the reciprocating rotation of the swing arm driving shaft through the swing arm crankshaft, the swing arm connecting rod and the driving arm, and the structure occupies a small space.

[0013] The utility model discloses the beneficial effect lies in:

[0014] The utility model discloses through setting up swing arm driving shaft and swing arm driven shaft, with the constraint of connecting plate, swing arm driving shaft and swing arm driven shaft are mutually parallelogram, to make swing arm driving shaft and swing arm driven shaft on the same swing arm unit move simultaneously, and the control of its swing path is simpler, and only swing arm driving shaft needs to be driven, and the required driving structure is less, and it is favorable to space optimization. ACCURACY OF DRAWINGS

[0015] Figure 1 It is the right view axis side view of the utility model.

[0016] Figure 2 It is the left view axis side view of the utility model.

[0017] Figure 3 It is the front view of the utility model.

[0018] Figure 4 is a side view of the utility model.

[0019] Figure 5 is a plan view of the utility model.

[0020] In the figure: 1, side plate; 2, swing arm unit; 21, swing arm driving shaft; 22, swing arm driven shaft; 23, swing arm crank; 24, swing arm connecting rod; 25, driving arm; 26, driving part; 27, swing arm rod; 28, swing arm connecting plate; 3, clamping jaw unit; 31, clamping jaw mechanism; 32, translation mechanism; 33, adjusting plate; 4, photoelectric assembly. DETAILED DESCRIPTION

[0021] It is necessary to point out here that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application, and those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0022] Example 1

[0023] As Figures 1-5 shown, a swing arm assembly for packaging bag conveying includes a side plate 1 and a plurality of swing arm units 2, the swing arm unit 2 includes a swing arm driving shaft 21 and at least one swing arm driven shaft 22 rotatably arranged on the side plate 1, both ends of the swing arm driving shaft 21 and the swing arm driven shaft 22 are fixedly provided with a swing arm rod 27, adjacent swing arm rods 27 at the same end are hingedly connected with a swing arm connecting plate 28, both ends of the swing arm connecting plate 28 are provided with a clamping jaw unit 3, and the swing arm driving shaft 21 is driven to rotate reciprocatingly to drive the clamping jaw unit 3 to convey the packaging bag.

[0024] The scheme is characterized in that the swing arm driving shaft 21 and the swing arm driven shaft 22 are arranged, and the swing arm driving shaft 21 and the swing arm driven shaft 22 are constrained by the connecting plate 28 to form a parallelogram, so that the clamping jaw units 3 on the swing arm driving shaft 21 and the swing arm driven shaft 22 of the same swing arm unit 2 move simultaneously, the control of the swing path is simpler, and only the swing arm driving shaft 21 needs to be driven, so that the required driving structure is less, and the space is optimized.

[0025] In the embodiment, the swing arm unit 2 has two, the swing arm driven shaft 22 of each swing arm unit 2 has one, each swing arm unit 2 has two pairs of clamping jaw units 3, two clamping jaw units 3 can be driven to operate simultaneously, and the two clamping jaw units 3 do not interfere with each other, a complex control program is not required to be designed, and a loading structure can be arranged in the gap between the two swing arm units 2, the loading structure has four pairs of clamping jaw units 3, and cooperates with the fixed structure in other structures to assist other devices to complete the steps of filling, sealing, cooling and the like in the conveying of the packaging bag.

[0026] The swing arm driving shaft 21 is driven by the driving element 26 arranged on the side plate 1, wherein the output end of the driving element 26 is provided with a swing arm crankshaft 23, the swing arm crankshaft 23 is hinged with a swing arm connecting rod 24, and the swing arm driving shaft 21 is fixedly provided with a driving arm 25 hinged with the swing arm connecting rod 24. The present scheme realizes the reciprocating rotation of the swing arm driving shaft 21 through the swing arm crankshaft 23, and further through the swing arm connecting rod 24 and the driving arm 25. It can be realized by continuous rotation of the driving element 26. The swing arm connecting rod 24 and the driving arm 25 can be arranged at the end of the swing arm driving shaft 21, which occupies small space and only needs to control the rotation period of the driving element 26. When the swing arm crankshaft 23 of the driving element 26 rotates one circle, the swing arm unit 2 swings one period.

[0027] The driving element 26 is a servo motor fixed on the connecting rib extended from the side plate 1, and the connecting rib is further provided with an optical component 4 for monitoring the swing arm crankshaft 23. By arranging the servo motor and the optical component 4, the mutual cooperation between different swing arm units 2 can be conveniently controlled.

[0028] The clamping jaw unit 3 comprises a clamping jaw mechanism 31, which is an open-close type clamping jaw driven by a driving part to open and close. The open-close type clamping jaw is a prior art, which drives the clamping jaw to open and close for clamping.

[0029] An adjusting plate 33 is further arranged between the clamping jaw mechanism 31 and the swing arm connecting plate 28, so as to adjust the distance between each pair of clamping jaw mechanisms 31. The adjusting plate 33 needs to be provided with a fixing structure to fix the clamping jaw mechanism 31 after adjustment.

[0030] At least one pair of clamping jaw units 3 has a translation mechanism 32 for automatically driving the adjusting plate 33. The translation mechanism 32 automatically controls the adjusting plate 33, which helps to automatically adjust the distance between the two clamping jaw mechanisms 31 during clamping according to the needs.

[0031] The embodiment is specifically: in the FFS packaging machine, as shown in Figure 1 The first clamping jaw, the second clamping jaw, the third clamping jaw, and the fourth clamping jaw are sequentially numbered from right to left. The packaging bag is taken down by the first clamping jaw, then temporarily stored by the external transfer structure, taken down by the second clamping jaw, then temporarily stored by the third clamping jaw, and finally put into the conveying belt by the fourth clamping jaw. The above-mentioned transfer structure includes but is not limited to a filling assembly, a sealing assembly, and a sealing cooling assembly, which all have the function of clamping the packaging bag in the prior art.

[0032] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A swing arm assembly for conveying packaging bags, comprising a side plate (1) and a plurality of swing arm units (2), characterized in that: The swing arm unit (2) comprises a swing arm driving shaft (21) and at least one swing arm driven shaft (22) which are rotatably arranged on the side plate (1), both ends of the swing arm driving shaft (21) and the swing arm driven shaft (22) are fixedly provided with swing arm rods (27), adjacent swing arm rods (27) at the same end are hingedly connected with a swing arm connecting plate (28), both ends of the swing arm connecting plate (28) are provided with a jaw unit (3), the swing arm driving shaft (21) is driven to reciprocate and rotate, so as to drive the jaw unit (3) to advance and transport the packaging bag.

2. A swing arm assembly for conveying packaging bags as defined in claim 1, characterized in that: The swing arm unit (2) has two, and the swing arm driven shaft (22) of each swing arm unit (2) has one.

3. The swing arm assembly of claim 1, wherein: The swing arm driving shaft (21) is driven by a driving member (26) arranged on the side plate (1), wherein the output end of the driving member (26) is provided with a swing arm crankshaft (23), the swing arm crankshaft (23) is hingedly connected with a swing arm connecting rod (24), and the swing arm driving shaft (21) is fixedly provided with a driving arm (25) hingedly connected with the swing arm connecting rod (24).

4. The swing arm assembly of claim 3, wherein: The driving member (26) is a servo motor which is fixed on a connecting rib extended from the side plate (1), and an optical component (4) for monitoring the swing arm crankshaft (23) is also arranged on the connecting rib.

5. The swing arm assembly of claim 1, wherein: The jaw unit (3) comprises a jaw mechanism (31), and the jaw mechanism (31) is an open-close type jaw which is driven to open and close by a driving part.

6. A swing arm assembly for conveying packaging bags as defined in claim 5, characterized in that: An adjusting plate (33) is further arranged between the jaw mechanism (31) and the swing arm connecting plate (28) for adjusting the distance between each pair of jaw mechanisms (31).

7. A swing arm assembly for conveying packaging bags as defined in claim 6, characterized in that: At least one pair of jaw units (3) has a translation mechanism (32) for automatically driving the adjusting plate (33).

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