Filling machine bag clamping and conveying mechanism capable of rapidly adjusting distance between clamping arms

Abstract

The utility model relates to the field of filling, in particular to a bag clamping and conveying mechanism of a filling machine, which can quickly adjust the distance between clamping arms. The bag clamping and conveying mechanism is used for conveying packaging bags to all working procedures of the filling machine and comprises two pairs of supporting plates arranged in an upper layer and a lower layer, the two supporting plates on the same layer can do reciprocating motion in the transverse direction of the feeding direction so as to complete the bag clamping action, and the two supporting plates on at least one layer can do reciprocating motion in the feeding direction so as to complete the bag conveying action. A plurality of sets of clamping arms are arranged on the two supporting plates on the same layer in a one-to-one correspondence mode, each set of clamping arms comprises a first clamping arm and a second clamping arm, the supporting plates are further provided with clamping arm driving devices, and the clamping arm driving devices are in driving connection with the first clamping arms and the second clamping arms. The first clamping arm and the second clamping arm can get close to each other or get away from each other so that the work of adjusting the distance between the two clamping arms in the same group can be completed. The utility model has the technical effects that the distance between the clamping arms can be quickly adjusted, the automation degree is high, the labor cost is saved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of filling, in particular to a bag clamping and conveying mechanism of a filling machine capable of quickly adjusting the distance between clamp arms. Background Art

[0002] With the improvement of living standards, product packaging is becoming more and more diversified. Packaging bags are also a common way of packaging. With the advancement of technology, the work of filling products into packaging bags has gradually progressed from manual filling to intelligent equipment filling. Generally, there are multiple steps in the filling process, such as opening the seal of the packaging bag, blowing air into the packaging bag to open it, filling the product into the packaging bag, sealing the packaging bag, etc. From one process to the next, the packaging bag is mostly clamped and delivered by the upper and lower layers of clamping arms in the reverse opening and closing reciprocating delivery method. Generally, two clamping arms clamp the two ends of the opening of the packaging bag, and the filling mechanism fills through the middle opening of the packaging bag. However, the clamping arms in the clamping bag device of the existing filling machine are mostly fixed. It is mounted on the support plate or detachably mounted on the support plate with bolts. When replacing packaging bags of different widths, if the width of the packaging bag is too small, the two clamp arms fixedly mounted on the support plate as a group cannot clamp the packaging bag and cannot meet the working requirements. If the width of the packaging bag is too large, the two clamp arms fixedly mounted on the support plate as a group are clamped in the middle position of the packaging bag, affecting the subsequent filling. In order to solve the above problems, the prior art has adopted bolts to detachably mount the clamp arms on the support plate. However, this method requires manual disassembly of each clamp arm and then reinstalling it as required, which is time-consuming and labor-intensive. Therefore, inventing a bag feeding device that can quickly adjust the spacing between the clamp arms of the filling machine is a technical problem that we need to solve. Utility Model Content

[0003] Based on this, it is necessary to provide a filling machine bag clamping and conveying mechanism that can quickly adjust the clamp arm spacing to address the problem that if the packaging bags are manually transferred from one process to the next process in the prior art, the work efficiency will be extremely slow.

[0004] Therefore, the present application provides a filling machine bag clamping and conveying mechanism that can quickly adjust the distance between clamp arms, which is used to transfer the packaging bags to the working positions of each process of the filling machine. The bag clamping and conveying mechanism includes two pairs of support plates 100, and the two pairs of support plates 100 are arranged in an upper and lower layer. The two support plates 100 on the same layer can reciprocate transversely to the feeding direction of the packaging bag to complete the bag clamping action. At least one layer of two support plates 100 can reciprocate in the feeding direction of the packaging bag to complete the bag feeding action. A plurality of groups of clamp arms 200 are arranged on the two support plates 100 on the same layer in a one-to-one correspondence, and each group of clamp arms 200 includes a No. 1 clamp arm 210 and a No. 2 clamp arm 220. The support plate 100 is also provided with a clamp arm driving device, and the clamp arm driving device is driven and connected to the No. 1 clamp arm 210 and the No. 2 clamp arm 220, so that the No. 1 clamp arm 210 and the No. 2 clamp arm 220 can approach each other or move away from each other to complete the work of adjusting the distance between the two clamp arms in the same group.

[0005] In some embodiments, the clamp arm driving device includes two racks 310 arranged in parallel and with teeth facing each other, a gear 320 arranged between the two racks 310, and a clamp arm rotating cylinder 330 driving the gear 320 to rotate, and the two racks 310 are both connected to the gear 320 in a transmission manner.

[0006] In some embodiments, at least two rack mounting seats 101 are disposed on the support plate 100 , and the rack mounting seats 101 are provided with through holes for the rack 310 to pass through, and the rack 310 can be slidably mounted on the rack mounting seats 101 .

[0007] In some embodiments, the rack 310 includes a first rack 311 and a second rack 312, the first clamp arm 210 is fixedly connected to the first rack 311 and slidably connected to the second rack 312, and the second clamp arm 220 is fixedly connected to the second rack 312 and slidably connected to the first rack 311.

[0008] In some embodiments, the support plate 100 includes an upper support plate 110 and a lower support plate 120, and the bag clamping and feeding mechanism also includes an upper bag clamping drive device, a lower bag clamping drive device and a bag feeding drive device, the upper bag clamping drive device is drivingly connected to the upper support plate 110, the lower bag clamping drive device is drivingly connected to the lower support plate 120, and the bag feeding drive device is drivingly connected to the lower support plate 120.

[0009] In some embodiments, the upper bag clamping driving device includes a bidirectional forward and reverse threaded screw 410 arranged above the upper support plate 110 and an upper bag clamping rotating cylinder 420 for driving the screw 410 to rotate, and the two upper support plates 110 are respectively installed on the forward threaded end and the reverse threaded end of the screw 410 through connecting parts with threaded holes.

[0010] In some embodiments, the lower bag clamping driving device includes a lower supporting plate 510 fixed on the filling machine, two support frames 520 slidably mounted on the supporting plate 510, and a lower bag clamping power assembly for driving the two support frames 510 to move closer to or away from each other on the supporting plate, the support frame 520 and the supporting plate 510 are slidably connected to the slide rail via a slider, the lower bag clamping power assembly includes a lower bag clamping rotating cylinder 530 fixedly mounted on the filling machine, and the lower bag clamping rotating cylinder 530 is transmission-connected to the support frame 510 via a gear transmission mechanism 540 and a crank slider mechanism 550.

[0011] In some embodiments, the bag delivery drive device includes a slider 610 installed on the lower support plate 120, a slide rail 620 installed on the support frame 520, and a bag delivery power assembly for driving the slider 610 to slide back and forth in the slide rail 620. The bag delivery power assembly includes a push rod 630 and a bag delivery rotating cylinder 640. The push rod 630 is drivingly connected to the slider 610, and the push rod 630 is transmission-connected to the bag delivery rotating cylinder 640 via a crankshaft 650.

[0012] The utility model provides a filling machine bag clamping and conveying mechanism capable of quickly adjusting the distance between clamp arms, which has the following technical effects: the distance between clamp arms can be quickly adjusted, the degree of automation is high, labor costs are saved, and work efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the overall structure installation of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation of the upper support plate of the utility model;

[0016] Figure 3 It is a schematic diagram of the installation of the clamp arm driving device of the utility model on the upper support plate;

[0017] Figure 4 This is a schematic diagram of the structure of the upper bag clamping driving device of the utility model;

[0018] Figure 5 This is a schematic diagram of the installation of the lower support plate of the utility model;

[0019] Figure 6It is a schematic diagram of the installation of the clamp arm driving device of the utility model on the lower support plate;

[0020] Figure 7 yes Figure 6 Enlarged view of the middle R part;

[0021] Figure 8 This is a schematic diagram of the structure of the lower bag clamping power assembly of the utility model;

[0022] Fig. 9 It is a structural schematic diagram of a bag-feeding power assembly of the utility model.

[0023] Explanation of the reference numerals in the accompanying drawings: support plate 100, clamping arm 200, clamping arm No. 1 210, clamping arm No. 2 220, rack 310, gear 320, clamping arm rotating cylinder 330, rack mounting base 101, rack No. 1 311, rack No. 2 312, upper support plate 110, lower support plate 120, screw rod 410, upper bag clamping rotating cylinder 420, lower bearing plate 510, support frame 520, lower bag clamping rotating cylinder 530, gear transmission mechanism 540, crank slider mechanism 550, slider 610, slide rail 620, push rod 630, bag feeding rotating cylinder 640, crankshaft 650. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "liquid level", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "number one" and "number two" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "number one" and "number two" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, feature No. 1 being "above" or "below" feature No. 2 may mean that feature No. 1 and feature No. 2 are in direct contact, or feature No. 1 and feature No. 2 are in indirect contact through an intermediate medium. Moreover, feature No. 1 being "above", "above" and "above" feature No. 2 may mean that feature No. 1 is directly above or obliquely above feature No. 2, or simply means that the liquid level of feature No. 1 is higher than feature No. 2. Feature No. 1 being "below", "below" and "below" feature No. 2 may mean that the first feature is directly below or obliquely below feature No. 2, or simply means that the liquid level of feature No. 1 is lower than feature No. 2.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "liquid horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] An embodiment of the utility model provides a filling machine bag clamping and feeding mechanism capable of quickly adjusting the distance between clamp arms. The filling machine bag clamping and feeding mechanism is used to feed packaging bags to various processes of the filling machine, such as the opening process, the filling process and the sealing process, so as to make the entire filling process more automated.

[0031] The following uses the example of a bag clamping and feeding mechanism feeding the packaging bag to each process of the filling machine during the product packaging process to explain the structure of the bag clamping and feeding mechanism of the filling machine in the present application. It can be understood that in other embodiments, the filling machine of the present application is not limited to being used on the filling machine, but can also be used in other equipment or scenarios that require feeding packaging bags, which is not limited here.

[0032] See also Figure 1 , Figure 1 The present invention shows an overall structural installation diagram of a filling machine bag clamping and feeding mechanism capable of quickly adjusting the distance between clamping arms, wherein the bag clamping and feeding mechanism comprises two pairs of support plates 100, the two pairs of support plates 100 are arranged in two layers, the two support plates 100 on the same layer can reciprocate transversely to the feeding direction of the packaging bag to complete the bag clamping action, at least one layer of two support plates 100 can reciprocate in the feeding direction of the packaging bag to complete the bag feeding action, a plurality of groups of clamping arms 200 are arranged on the two support plates 100 on the same layer in a one-to-one correspondence, each group of clamping arms 200 comprises a first clamping arm 210 and a second clamping arm 220, the support plates 100 are further provided with a clamping arm driving device, the clamping arm driving device is drivingly connected to the first clamping arm 210 and the second clamping arm 220, so that the first clamping arm 210 and the second clamping arm 220 can approach or move away from each other to complete the work of adjusting the distance between the two clamping arms in the same group.

[0033] The clamp arm driving device includes two racks 310 arranged in parallel and with teeth facing each other, a gear 320 arranged between the two racks 310, and a clamp arm rotating cylinder 330 driving the gear 320 to rotate. Figures 2 to 4 The two racks 310 are both connected to the gear 320, and the gear 320 is directly connected to the clamp arm rotating cylinder 330. The specific structure is as follows: Figure 3 As shown, it can also be connected through a gear transmission mechanism, and its specific structure is as follows Figure 6-7 In this embodiment, the clamp arm rotating cylinder 330 can be a reversible rotating cylinder or a rotating motor, and when the gear 320 rotates under the drive of the clamp arm rotating cylinder 330, the two racks 310 move in opposite directions respectively under the drive of the gear 320.

[0034] Specifically, at least two rack mounting seats 101 are disposed on the support plate 100 . The rack mounting seats 101 are provided with through holes for the rack 310 to pass through. The rack 310 can be slidably mounted on the rack mounting seats 101 .

[0035] For the convenience of description, we define the two racks 310 as rack No. 1 311 and rack No. 2 312 respectively. The No. 1 clamp arm 210 is fixedly connected to the No. 1 rack 311 and slidably connected to the No. 2 rack 312. The No. 2 clamp arm 220 is fixedly connected to the No. 2 rack 312 and slidably connected to the No. 1 rack 311.

[0036] When working, Figure 3 As shown, when the clamp arm rotating cylinder 330 drives the gear 320 to rotate clockwise around the Y axis, the No. 1 rack 311 drives the No. 1 clamp arm 210 to move forward in the negative direction of the Z axis, and the No. 2 rack 312 drives the No. 2 clamp arm 220 to move forward in the positive direction of the Z axis, then the No. 1 clamp arm 210 and the No. 2 clamp arm 220 approach each other, so as to achieve the purpose of reducing the distance between the No. 1 clamp arm 210 and the No. 2 clamp arm 220; when the clamp arm rotating cylinder 330 drives the gear 320 to rotate counterclockwise around the Y axis, the No. 1 rack 311 drives the No. 1 clamp arm 210 to move forward in the positive direction of the Z axis, and the No. 2 rack 312 drives the No. 2 clamp arm 220 to move forward in the negative direction of the Z axis, then the No. 1 clamp arm 210 and the No. 2 clamp arm 220 move away from each other, so as to achieve the purpose of expanding the distance between the No. 1 clamp arm 210 and the No. 2 clamp arm 220.

[0037] For the convenience of description, we define the upper and lower support plates 100 as an upper support plate 110 and a lower support plate 120. Figure 1 As shown, the bag clamping and feeding mechanism also includes an upper bag clamping drive device, a lower bag clamping drive device and a bag feeding drive device.

[0038] The upper bag clamping driving device is connected to the upper support plate 110 by driving. Figure 4 As shown, the upper support plate 110 can reciprocate transversely to the feeding direction of the packaging bag, thereby completing the bag clamping action; the lower bag clamping drive device is drivingly connected to the lower support plate 120, as shown in FIG. Figure 5 As shown, the lower support plate 120 can reciprocate transversely to the feeding direction of the packaging bag, thereby completing the bag clamping action. The bag feeding drive device is drivingly connected to the lower support plate 120, so that the lower support plate can reciprocate in the feeding direction, thereby completing the bag feeding action.

[0039] See also Figure 2 and Figure 3The upper bag clamping driving device includes a bidirectional forward and reverse threaded screw 410 arranged above the upper support plate 110 and an upper bag clamping rotating cylinder 420 for driving the screw 410 to rotate. The two upper support plates 110 are respectively installed on the forward threaded end and the reverse threaded end of the screw 410 through a connecting piece with a threaded hole. The upper bag clamping rotating cylinder 420 can adopt a rotating cylinder or a rotating motor that can rotate forward and reverse. By controlling the forward and reverse rotation of the upper bag clamping rotating cylinder 420, the two upper support plates 110 are driven to move closer to or away from each other, thereby completing the action of clamping and releasing the packaging bag.

[0040] See also Figure 5 and Figure 8 The lower bag clamping driving device includes a lower carrying plate 510 fixed on the filling machine, two support frames 520 slidably mounted on the carrying plate 510, and a lower bag clamping power assembly for driving the two support frames 510 to move closer to or away from each other on the carrying plate. The support frames 520 and the carrying plate 510 are slidably connected to the slide rail through a slider. The lower bag clamping power assembly includes a lower bag clamping rotating cylinder 530 fixedly mounted on the filling machine. The lower bag clamping rotating cylinder 530 is transmission-connected to the support frame 510 through a gear transmission mechanism 540 and a crank slider mechanism 550. Figure 8 As shown, no further description is given here.

[0041] The bag delivery driving device includes a slider 610 installed on the lower support plate 120, a slide rail 620 installed on the support frame 520, and a bag delivery power assembly for driving the slider 610 to slide back and forth in the slide rail 620. The bag delivery power assembly includes a push rod 630 and a bag delivery rotating cylinder 640. The push rod 630 is drivingly connected to the slider 610, and the push rod 630 is drivingly connected to the bag delivery rotating cylinder 640 via a crankshaft 650. Fig. 9 As shown, no further description is given here.

[0042] The present application provides a filling machine bag clamping and feeding mechanism capable of quickly adjusting the distance between clamping arms, which also includes a control unit. A control strategy is provided in the control unit. The control unit sends control instructions to the upper bag clamping rotary cylinder 420, the lower bag clamping rotary cylinder 530, and the bag feeding rotary cylinder 640 according to the control strategy to control the operation of the upper bag clamping rotary cylinder 420, the lower bag clamping rotary cylinder 530, and the bag feeding rotary cylinder 640.

[0043] The utility model provides a filling machine bag clamping and conveying mechanism capable of quickly adjusting the distance between clamp arms, which has the following technical effects: the distance between clamp arms can be quickly adjusted, the degree of automation is high, labor costs are saved, and work efficiency is greatly improved.

[0044] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A bag-feeding mechanism for a filling machine capable of quickly adjusting the distance between clamp arms, used to deliver packaging bags to various working positions of the filling machine, characterized in that: The bag clamping and feeding mechanism comprises two pairs of support plates (100), the two pairs of support plates (100) are arranged in two layers, the two support plates (100) on the same layer can reciprocate in a direction transverse to the feeding direction of the packaging bag to complete the bag clamping action, and the two support plates (100) on at least one layer can reciprocate in the feeding direction of the packaging bag to complete the bag feeding action. A plurality of groups of clamping arms (200) are arranged on the two support plates (100) on the same layer in a one-to-one correspondence, and each group of clamping arms (200) comprises a first clamping arm (210) and a second clamping arm (220). The support plates (100) are also provided with a clamping arm driving device, and the clamping arm driving device is drivingly connected to the first clamping arm (210) and the second clamping arm (220), so that the first clamping arm (210) and the second clamping arm (220) can move closer to each other or farther away from each other to complete the work of adjusting the distance between the two clamping arms in the same group.

2. A bag clamping and conveying mechanism for a filling machine capable of quickly adjusting the distance between clamp arms according to claim 1, characterized in that: The clamp arm driving device comprises two racks (310) arranged in parallel and with teeth facing each other, a gear (320) arranged between the two racks (310), and a clamp arm rotating cylinder (330) driving the gear (320) to rotate, and the two racks (310) are both in transmission connection with the gear (320).

3. The bag clamping and conveying mechanism for a filling machine capable of quickly adjusting the distance between clamp arms according to claim 1, characterized in that: At least two rack mounting seats (101) are arranged on the support plate (100), and through holes for the racks (310) to pass through are arranged on the rack mounting seats (101), and the racks (310) can be slidably mounted on the rack mounting seats (101).

4. The bag clamping and conveying mechanism of a filling machine capable of quickly adjusting the distance between clamp arms according to claim 2, characterized in that: The rack (310) comprises a first rack (311) and a second rack (312); the first clamp arm (210) is fixedly connected to the first rack (311) and is slidably connected to the second rack (312); the second clamp arm (220) is fixedly connected to the second rack (312) and is slidably connected to the first rack (311).

5. The bag clamping and conveying mechanism of a filling machine capable of quickly adjusting the distance between clamp arms according to claim 1, characterized in that: The support plate (100) comprises an upper support plate (110) and a lower support plate (120); the bag clamping and feeding mechanism further comprises an upper bag clamping drive device, a lower bag clamping drive device and a bag feeding drive device; the upper bag clamping drive device is drivingly connected to the upper support plate (110), the lower bag clamping drive device is drivingly connected to the lower support plate (120), and the bag feeding drive device is drivingly connected to the lower support plate (120).

6. A bag clamping and conveying mechanism for a filling machine capable of quickly adjusting the distance between clamp arms according to claim 5, characterized in that: The upper bag clamping driving device comprises a bidirectional forward and reverse threaded screw (410) arranged above an upper support plate (110) and an upper bag clamping rotating cylinder (420) for driving the screw (410) to rotate, and the two upper support plates (110) are respectively mounted on the forward threaded end and the reverse threaded end of the screw (410) through connecting pieces with threaded holes.

7. A bag-feeding mechanism for a filling machine capable of quickly adjusting the distance between clamp arms according to claim 5, characterized in that: The lower bag clamping driving device comprises a lower supporting plate (510) fixed on the filling machine, two supporting frames (520) slidably mounted on the supporting plate (510), and a lower bag clamping power assembly for driving the two supporting frames (520) to move closer to or farther from each other on the supporting plate, wherein the supporting frame (520) and the supporting plate (510) are slidably connected to a slide rail via a slider, and the lower bag clamping power assembly comprises a lower bag clamping rotating cylinder (530) fixedly mounted on the filling machine, and the lower bag clamping rotating cylinder (530) is transmission-connected to the supporting frame (520) via a gear transmission mechanism (540) and a crank slider mechanism (550).

8. The bag clamping and conveying mechanism of a filling machine capable of quickly adjusting the distance between clamp arms according to claim 5, characterized in that: The bag delivery drive device comprises a slider (610) mounted on a lower support plate (120), a slide rail (620) mounted on a support frame (520), and a bag delivery power assembly for driving the slider (610) to slide back and forth in the slide rail (620), the bag delivery power assembly comprising a push rod (630) and a bag delivery rotating cylinder (640), the push rod (630) being drivingly connected to the slider (610), and the push rod (630) being drivingly connected to the bag delivery rotating cylinder (640) via a crankshaft (650).

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