Packaging machine clamping assembly and packaging machine

Abstract

The utility model relates to the technical field of packaging machines, in particular to a packaging machine clamping assembly which comprises an assembly body, the assembly body is provided with at least two bag clamping mechanisms arranged side by side, and each bag clamping mechanism comprises a first clamping piece and a second clamping piece which are used for clamping the two sides of a packaging bag; the driving part comprises a first driving piece and a second driving piece which are concentrically arranged; the bag opening mechanism is arranged on the assembly main body, and the first driving part is connected with the bag opening mechanism and drives all the bag clamping mechanisms to be synchronously switched between a bag unfolding state and a bag shrinking state; the clamp opening mechanism is arranged on the assembly main body, and the second driving piece is connected with the clamp opening mechanism and drives the first clamping pieces and the second clamping pieces of all the bag clamping mechanisms to be synchronously switched between the clamp opening state and the clamp closing state. The first driving part and the second driving part are concentrically arranged, and the structural design can effectively save space and facilitate transmission and distribution of power.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing machine technical field, especially a packing machine clamping subassembly and packing machine. BACKGROUND

[0002] The packing machine clamping subassembly is used for realizing the bag clamping and bag unfolding and shrinking actions of the packing bag, in order to realize the basic bag clamping and bag unfolding and shrinking functions of the existing clamping subassembly, a plurality of gear levels, connecting rods and complicated cam structure cooperation are adopted, which not only increases the manufacturing and assembly difficulty, but also increases the fault points of the equipment in the running process, seriously affects the overall operation stability and production continuity of the packing machine. SUMMARY

[0003] The utility model aims at the problem of the complex structure and large space occupation of the existing packing machine clamping body, and provides a packing machine clamping subassembly.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A packing machine clamping subassembly, comprising:

[0006] The component main body is provided with at least two bag clamping mechanisms arranged side by side, the bag clamping mechanism comprises a first clamping piece and a second clamping piece, and is used for clamping two side edges of the packing bag;

[0007] The driving part comprises a first driving piece and a second driving piece arranged concentrically;

[0008] The bag opening mechanism is arranged on the component main body, the first driving piece is connected with the bag opening mechanism and drives all the bag clamping mechanisms to synchronously switch between the bag unfolding state and the bag shrinking state;

[0009] The clamping opening mechanism is arranged on the component main body, the second driving piece is connected with the clamping opening mechanism and drives the first clamping piece and the second clamping piece of all the bag clamping mechanisms to synchronously switch between the clamping opening state and the clamping closing state.

[0010] Preferably, the bag opening mechanism comprises a bag opening driving rod, the bag opening driving rod extends along the arrangement direction of the bag clamping mechanism, and the first driving piece is in transmission connection with the bag opening driving rod;

[0011] The clamping opening mechanism comprises a clamping opening driving rod, the clamping opening driving rod extends along the arrangement direction of the bag clamping mechanism, and the second driving piece is in transmission connection with the clamping opening driving rod.

[0012] Preferably, the first driving member and the second driving member are rotatably arranged at the end of the clamping assembly.

[0013] Preferably, the first driving member is arranged inside the second driving member, and the bag opening driving rod is arranged below the bag clamping mechanism.

[0014] Preferably, the first driving member is coaxially arranged with the bag opening driving rod, the second driving member is connected with a first gear, and the bag opening driving rod is connected with a second gear at the end thereof, the first gear and the second gear are engaged with each other.

[0015] Preferably, a pushing part is arranged on the bag opening driving rod, and the second driving member drives the bag opening driving rod to rotate or move along the axial direction thereof to drive the first clamping member and the second clamping member of each bag clamping mechanism to synchronously switch between the open state and the closed state through the pushing part.

[0016] The bag opening driving rod cooperates with the first clamping member and / or the second clamping member, and the first driving member drives the bag opening driving rod to rotate or move along the axial direction thereof to adjust the distance between the first clamping member and the second clamping member of each bag clamping mechanism.

[0017] Preferably, the pushing part comprises a cam arranged on the bag opening driving rod and a swing arm cooperating with the cam, and the bag opening driving rod drives the cam to rotate to drive the swing arm to drive the first clamping member and the second clamping member of each bag clamping mechanism to synchronously switch between the open state and the closed state.

[0018] Preferably, the bag opening driving rod is provided with a first thread and a second thread cooperating with the first clamping member and the second clamping member, and the first thread and the second thread are opposite in direction.

[0019] A packaging machine comprising a circulating conveying mechanism and a packaging machine clamping assembly as described above, the packaging machine clamping assembly is arranged on the circulating conveying mechanism, and a bag opening driving mechanism and a bag clamping driving mechanism are arranged beside the circulating conveying mechanism.

[0020] The circulating conveying mechanism comprises two rotating disc assemblies arranged at intervals, and a plurality of packaging machine clamping assemblies are arranged between the rotating disc assemblies.

[0021] The bag opening driving mechanism drives the first driving member to drive all the bag clamping mechanisms to synchronously switch between the bag opening state and the bag closing state.

[0022] The bag clamping driving mechanism drives the second driving member to drive the first clamping member and the second clamping member of all the bag clamping mechanisms to synchronously switch between the open state and the closed state.

[0023] Preferably, the bag opening driving mechanism and the clip opening driving mechanism comprise one or a combination of a pusher or a guide.

[0024] In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

[0025] 1. The first driving member and the second driving member of the clamping assembly driving part are concentrically arranged, which can effectively save space, facilitate power transmission and distribution, the first driving member is arranged inside the second driving member, which is conducive to compact structure layout, and the clip opening driving rod is arranged below the bag clamping mechanism, further reducing the width size of the bag clamping mechanism.

[0026] 2. The bag opening driving mechanism and the clip opening driving mechanism arranged beside the circulating conveying mechanism of the packaging machine adopt the form of a pusher or a guide, which can accurately realize the synchronous switching of the bag clamping mechanism between the bag opening state and the bag closing state and the first clamping member and the second clamping member between the clip opening state and the clip closing state. The dependence on a complex control system is reduced, and the stability and reliability of the entire packaging machine are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a packaging machine clamping assembly of the embodiment;

[0028] Figure 2 It is Figure 1 An enlarged view of part A;

[0029] Figure 3 It is Figure 2 A sectional view;

[0030] Figure 4 It is a side view of the packaging machine clamping assembly of the embodiment;

[0031] Figure 5 It is a schematic view of the packaging machine of the embodiment.

[0032] Marked in the figure: 1-bag clamping mechanism, 101-first clamping member, 102-second clamping member, 2-driving part, 201-first driving member, 202-second driving member, 2021-first gear, 3-bag opening mechanism, 301-bag opening driving rod, 4-clip opening mechanism, 401-clip opening driving rod, 4011-second gear, 402-pushing part, 4021-cam, 4022-swinging arm, 5-rotating disc assembly. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0034] As Figures 1-4 The embodiment of a packaging machine clamping assembly, including the assembly main body, drive part 2, bag opening mechanism 3 and open clamp mechanism 4. The main body of the assembly as the basic structure of the whole clamping assembly, it has enough strength and stability to ensure the reliable operation of each mechanism. The main material can be selected from high strength aluminum alloy, which has good rigidity and light weight characteristics, and is easy to install in the corresponding position of the packaging machine.

[0035] The number of bag clamping mechanism 1 arranged side by side on the main body of the assembly can be set according to the actual packaging requirements. The clamping surface of the first clamping part 101 and the second clamping part 102 in the bag clamping mechanism 1 can be selected from rubber material with certain friction coefficient to increase the friction force on the side of the packaging bag to prevent the packaging bag from falling during clamping.

[0036] The first driving part 201 and the second driving part 202 of the driving part 2 are concentrically arranged, that is, the first driving part 201 and the second driving part 202 are mutually sleeved. This structure design can effectively save space and facilitate power transmission and distribution. The axial movement or rotation of the first driving part 201 drives all the bag clamping mechanisms 1 to switch between the bag opening state and the bag closing state through the bag opening mechanism 3, and the axial movement or rotation of the second driving part 202 drives the first clamping part 101 and the second clamping part 102 of all the bag clamping mechanisms 1 to switch between the open clamp state and the closed clamp state through the open clamp mechanism 4.

[0037] Further, the first driving part 201 and the second driving part 202 are rotatably arranged at the end of the clamping assembly, that is, the rotational movement of the first driving part 201 drives all the bag clamping mechanisms 1 to switch between the bag opening state and the bag closing state through the bag opening mechanism 3, and the rotational movement of the second driving part 202 drives the first clamping part 101 and the second clamping part 102 of all the bag clamping mechanisms 1 to switch between the open clamp state and the closed clamp state through the open clamp mechanism 4.

[0038] Further, the first driving part 201 is arranged inside the second driving part 202, which is beneficial to compact structure layout, and the open clamp driving rod 401 is arranged below the bag clamping mechanism 1, further reducing the width dimension x of the bag clamping mechanism.

[0039] The bag opening driving rod 301 of the bag opening mechanism 3 extends along the arrangement direction of the bag clamping mechanism 1, and the material thereof can be selected from high strength alloy steel. The bag opening driving rod 301 is coaxially arranged with the first driving part 201, which can be connected through a coupling. The coupling is selected from an elastic coupling, which can effectively buffer the impact when the motor starts and stops, while ensuring reliable transmission of power.

[0040] When the first driving member 201 rotates, the bag opening driving rod 301 is driven to rotate or move along its axial direction. In the embodiment, the bag opening driving rod 301 cooperates with the first clamping member 101 and / or the second clamping member 102 in the following manner: first and second threads that cooperate with the first and second clamping members 101 and 102 are arranged on the bag opening driving rod 301, and the first and second threads are opposite in direction. Through the thread cooperation structure, when the bag opening driving rod 301 rotates, the first and second clamping members 101 and 102 can be relatively close or far away, so as to adjust the distance between the first and second clamping members 101 and 102 of each bag clamping mechanism 1, and realize the unfolding and shrinking actions of the packaging bag. For example, in the bag unfolding state, the positive rotation of the first driving member 201 drives the bag opening driving rod 301 to drive the first and second clamping members 101 and 102 to move away from each other, and the packaging bag is stretched; in the bag shrinking state, the reverse rotation of the first driving member 201 drives the first and second clamping members 101 and 102 to move close to each other, and the packaging bag is tightened, so as to facilitate the subsequent packaging operation.

[0041] The opening and closing driving rod 401 of the opening and closing mechanism 4 extends along the arrangement direction of the bag clamping mechanism 1, and the material thereof can be the same as that of the bag opening driving rod 301, so as to ensure the strength and reliability thereof. The second driving member 202 drives the opening and closing driving rod 401 to rotate or move along its axial direction. In the embodiment, the second driving member 202 is connected with the opening and closing driving rod 401 through gear transmission, specifically, the second driving member 202 is connected with a first gear 2021, the opening and closing driving rod 401 is connected with a second gear 4011, the first gear 2021 and the second gear 4011 are engaged with each other, and the modulus and the number of teeth of the gears are designed according to the required transmission ratio and torque, so as to ensure that the second driving member 202 can accurately drive the opening and closing driving rod 401 to rotate.

[0042] Further, the opening and closing driving rod 401 is provided with a pushing part 402, which includes a cam 4021 arranged on the opening and closing driving rod 401 and a swing arm 4022 cooperating with the cam 4021. When the second driving member 202 drives the opening and closing driving rod 401 to rotate, the cam 4021 rotates, and through the cooperation between the contour curve of the cam 4021 and the swing arm 4022, the swing arm 4022 swings, so as to drive the first and second clamping members 101 and 102 of each bag clamping mechanism 1 to synchronously switch between the opening and closing states.

[0043] As Figure 5As shown, the embodiment also provides a packaging machine, which comprises a circulating conveying mechanism and the above packaging machine clamping assembly, and the packaging machine clamping assembly is installed on the circulating conveying mechanism and is circulated and reciprocated. The circulating conveying mechanism comprises two rotating disc assemblies 5 arranged at intervals, and a plurality of packaging machine clamping assemblies are arranged between the rotating disc assemblies 5. The rotating disc assemblies 5 drive the packaging machine clamping assemblies to circulate and reciprocate under the rotation of the rotating disc assemblies 5. The posture of the packaging bag clamped by the bag clamping mechanism 1 needs to be kept vertical during the conveying process. If the first driving member 201 and the second driving member 202 are arranged concentrically, the motion trajectories of the first driving member 201 and the second driving member 202 will cross, which may cause unstable driving of the mechanism. In the embodiment, the first driving member 201 and the second driving member 202 are arranged concentrically, which is not only compact in structure layout, but also facilitates the arrangement of components and the stable operation of the mechanism.

[0044] The bag opening driving mechanism and the clamping opening driving mechanism are arranged beside the circulating conveying mechanism, and the bag opening driving mechanism and the clamping opening driving mechanism comprise one or a combination of a poking member or a guide member. For example, the bag opening driving mechanism can adopt a poking rod type poking member. When the packaging bag is conveyed to the corresponding position, the poking rod acts with the specific groove or clamping groove or protrusion of the first driving member 201 under the driving of the power device, drives the first driving member 201 to rotate through the rotation of the poking rod, so as to realize the synchronous switching of all the bag clamping mechanisms 1 between the bag opening state and the bag closing state. The clamping opening driving mechanism can adopt a guide rail type guide member. The end of the second driving member 202 is provided with a sliding block, and the shape and size of the guide rail are matched with the sliding block. When the sliding block slides on the guide rail, the second driving member 202 is driven to rotate or move along the axial direction, and drives the clamping opening mechanism 4 to act, so as to realize the synchronous switching of the first clamping member 101 and the second clamping member 102 of all the bag clamping mechanisms 1 between the clamping opening state and the clamping closing state.

[0045] The above only describes the preferred embodiment of the utility model, and does not limit the utility model. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A clamping assembly for a packaging machine, characterized in that, include, The main body of the component is provided with at least two bag clamping mechanisms (1) arranged side by side. The bag clamping mechanism (1) includes a first clamping member (101) and a second clamping member (102) for clamping two sides of the packaging bag. The drive unit (2) includes a first drive member (201) and a second drive member (202) arranged concentrically; The bag opening mechanism (3) is disposed on the main body of the component. The first driving member (201) is connected to the bag opening mechanism (3) and drives all the bag clamping mechanisms (1) to switch synchronously between the bag unfolding state and the bag shrinking state. The clamping mechanism (4) is disposed on the main body of the component. The second driving member (202) is connected to the clamping mechanism (4) and drives the first clamping member (101) and the second clamping member (102) of all the bag clamping mechanisms (1) to switch synchronously between the clamping state and the clamping state.

2. The packaging machine clamping assembly according to claim 1, characterized in that, The bag opening mechanism (3) includes a bag opening drive rod (301), which extends along the arrangement direction of the bag clamping mechanism (1), and the first drive member (201) is connected to the bag opening drive rod (301) in a transmission connection. The clamping mechanism (4) includes a clamping drive rod (401), which extends along the arrangement direction of the bag clamping mechanism (1), and the second drive member (202) is connected to the clamping drive rod (401) in a transmission connection.

3. A packaging machine clamping assembly according to claim 2, characterized in that, The first drive member (201) and the second drive member (202) are rotatably disposed at the end of the clamping assembly.

4. A packaging machine clamping assembly according to claim 3, characterized in that, The first driving member (201) is located inside the second driving member (202), and the opening clamping driving rod (401) is located below the bag clamping mechanism (1).

5. A packaging machine clamping assembly according to claim 4, characterized in that, The first driving member (201) is coaxially arranged with the bag opening driving rod (301), the second driving member (202) is connected to the first gear (2021), and the end of the clamp opening driving rod (401) is connected to the second gear (4011). The first gear (2021) and the second gear (4011) mesh with each other.

6. A packaging machine clamping assembly according to claim 2, characterized in that, The opening clamping drive rod (401) is provided with a pushing part (402), and the second driving member (202) drives the opening clamping drive rod (401) to rotate or move along its axial direction so as to drive the first clamping member (101) and the second clamping member (102) of each of the bag clamping mechanisms (1) to switch synchronously between the opening clamping state and the closing clamping state through the pushing part (402); The bag opening drive rod (301) cooperates with the first clamping member (101) and / or the second clamping member (102). The first drive member (201) drives the bag opening drive rod (301) to rotate or move along its axial direction to adjust the distance between the first clamping member (101) and the second clamping member (102) of each of the bag clamping mechanisms (1).

7. A packaging machine clamping assembly according to claim 6, characterized in that, The pushing part (402) includes a cam (4021) disposed on the clamping drive rod (401) and a swing arm (4022) cooperating with the cam (4021). The clamping drive rod (401) drives the cam (4021) to rotate so that the swing arm (4022) drives the first clamping member (101) and the second clamping member (102) of each of the bag clamping mechanisms (1) to switch synchronously between the clamping state and the clamping state.

8. A packaging machine clamping assembly according to claim 6, characterized in that, The bag opening drive rod (301) is provided with a first thread and a second thread that cooperate with the first clamping member (101) and the second clamping member (102), and the first thread and the second thread are in opposite directions.

9. A packaging machine, characterized in that, The packaging machine includes a circulating conveying mechanism and a packaging machine clamping assembly as described in any one of claims 1-8, wherein the packaging machine clamping assembly is disposed on the circulating conveying mechanism, and a bag opening drive mechanism and a clamp opening drive mechanism are disposed beside the circulating conveying mechanism. The circulating conveying mechanism includes two turntable assemblies (5) spaced apart, and a plurality of the packaging machine clamping assemblies are disposed between the turntable assemblies (5); The bag opening drive mechanism drives the first drive member (201) to drive all the bag clamping mechanisms (1) to switch synchronously between the bag unfolding state and the bag shrinking state; The clamping drive mechanism drives the second drive member (202) to drive the first clamping member (101) and the second clamping member (102) of all the bag clamping mechanisms (1) to switch synchronously between the clamping state and the clamping state.

10. A packaging machine according to claim 9, characterized in that, The bag opening drive mechanism and the clamp opening drive mechanism include one or a combination of a toggle element or a guide element.

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