Welding machine for inner packaging bag of ton bag

Abstract

The utility model discloses a ton bag inner packaging bag welding machine which comprises a supporting frame, a fixed limiting frame and a hot-pressing assembly, and a first installation position, a hot-pressing welding position and a second installation position are sequentially and linearly arranged on the supporting frame. The number of the fixed limiting frames is two, one fixed limiting frame slides between the first installation position and the hot-pressing welding position, and the other fixed limiting frame slides between the second installation position and the hot-pressing welding position. Each fixed limiting frame is used for placing an inner packaging bag and an outer bag body and limiting after a bag opening of the inner packaging bag and a bag opening of the outer bag body are aligned; the hot-pressing assembly is connected with the supporting frame and slides on the hot-pressing welding position in the vertical direction. Compared with the prior art, the ton bags can be connected more efficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of ton bag processing equipment, in particular to a ton bag inner packaging bag welding machine. Background Art

[0002] A ton bag is a flexible transport packaging container. It is mainly composed of an outer bag body and an inner packaging bag arranged inside it. When connecting the outer bag body and the inner packaging bag, the inner packaging bag is first placed in the outer bag body, and then the bag opening of the inner packaging bag is attached and aligned with the bag opening of the outer bag body, and then a hot press is used to hot-press the bag opening of the inner packaging bag and the bag opening of the outer bag body to complete the connection.

[0003] However, no ton bag inner packaging bag welding machine has been found to more efficiently connect the outer bag body and the inner packaging bag. Utility Model Content

[0004] In view of the shortcomings in the existing technology, the purpose of the present invention is to provide a ton bag inner packaging bag welding machine to solve the problem that there is no ton bag inner packaging bag welding machine in the existing technology to more efficiently perform the connection work between the outer bag body and the inner packaging bag.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: a ton bag inner packaging bag welding machine, comprising:

[0006] A support frame, wherein a first mounting position, a hot pressing welding position, and a second mounting position are linearly arranged in sequence on the support frame;

[0007] There are two fixed limiting frames, one of which slides between the first installation position and the hot pressing welding position, and the other slides between the second installation position and the hot pressing welding position. Each fixed limiting frame is used to place the inner packaging bag and the outer bag body and align the bag opening of the inner packaging bag with the bag opening of the outer bag body before limiting the position;

[0008] A hot pressing assembly is connected to the support frame and slides in a vertical direction on the hot pressing welding position.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] This ton bag inner packaging bag welding machine is equipped with two fixed limit frames to place the inner packaging bag and the outer bag body on the first installation position and the second installation position respectively, and to limit the position after the bag opening of the inner packaging bag is aligned with the bag opening of the outer bag body, and then the two fixed limit frames are alternately slid into the hot pressing welding position, and the hot pressing component is slid in the vertical direction to perform hot pressing between the bag opening of the inner packaging bag and the bag opening of the outer bag body to complete the connection, and then the fixed limit frame is slid back to the first installation position or the second installation position to remove the ton bag formed after the connection, and then a new inner packaging bag and outer bag body are arranged to wait for sliding into the hot pressing welding position for connection; the two fixed limit frames are alternately operated in this way to improve the connection efficiency of the ton bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of a state in which two fixed limiting frames are located at a first installation position and a second installation position respectively in an embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of a state in which one of the fixed limiting frames slides into the hot pressing welding position in one embodiment of the present utility model;

[0013] Figure 3 This is a schematic diagram of another fixed limiting frame in an embodiment of the present invention when it slides into the hot pressing welding position;

[0014] Figure 4 for Figure 1 Schematic diagram of the partial arrangement of the frame placed on the support frame;

[0015] Figure 5 for Figure 1 Schematic diagram of the arrangement of the middle limit structure on the placement frame;

[0016] Figure 6 for Figure 1 Partial cross-sectional view of the middle section A;

[0017] Figure 7 for Figure 2 Partial cross-sectional view of section B in the middle.

[0018] The figure marks in the drawings of the specification include: support frame 1, slide rail 11, fixed limit frame 2, placement frame 21, limit structure 22, limit block 221, limit rod 222, movable hole 223, locking nut 224, pressing head 225, hot pressing assembly 3, end positioning block 4, one-way positioning structure 5, installation groove 51, one-way positioning block 52. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below through specific implementation methods:

[0020] like Figure 1 、 Figure 2 as well as Figure 3 As shown, an embodiment of the utility model proposes a ton bag inner packaging bag welding machine, including a support frame 1, a fixed limiting frame 2 and a hot pressing assembly 3, and the support frame 1 is linearly arranged with a first mounting position, a hot pressing welding position and a second mounting position; there are two fixed limiting frames 2, one of which slides between the first mounting position and the hot pressing welding position and the other fixed limiting frame 2 slides between the second mounting position and the hot pressing welding position, and each fixed limiting frame 2 is used to place the inner packaging bag and the outer bag body and to limit the position after the bag opening of the inner packaging bag is aligned with the bag opening of the outer bag body; the hot pressing assembly 3 is connected to the support frame 1 and slides in a vertical direction on the hot pressing welding position.

[0021] This ton bag inner packaging bag welding machine is equipped with two fixed limit frames 2 to place the inner packaging bag and the outer bag body on the first installation position and the second installation position respectively, and to limit the position after the bag opening of the inner packaging bag and the bag opening of the outer bag body are aligned, and then the two fixed limit frames 2 are alternately slid into the hot pressing welding position, and the hot pressing component 3 sliding in the vertical direction is used to perform hot pressing between the bag opening of the inner packaging bag and the bag opening of the outer bag body to complete the connection, and then the fixed limit frame 2 is slid back to the first installation position or the second installation position to remove the ton bag formed after the connection, and then a new inner packaging bag and outer bag body are arranged to wait for sliding into the hot pressing welding position for connection; the two fixed limit frames 2 are alternately performed in this way to improve the connection efficiency of the ton bag.

[0022] In this embodiment, the support frame 1 is located outside the hot pressing welding position and is vertically connected to multiple support bars, and the tops of the multiple support bars are connected to a mounting plate; the hot pressing assembly 3 includes a cylinder fixedly set on the mounting plate and a hot press connected to the cylinder, and the hot press is an existing equipment; the cylinder drives the hot press to move in the vertical direction to perform hot pressing welding between the inner packaging bag and the outer bag body on the fixed limiting frame 2 moved into the hot pressing welding position.

[0023] In order to better understand this solution, the structure of the fixed limit frame 2 and the like will be optimized below.

[0024] like Figure 1-Figure 5 As shown, according to another embodiment of the present invention, a ton bag inner packaging bag welding machine, wherein the fixed limiting frame 2 includes a placement frame 21 and a limiting structure 22, the placement frame 21 is slidably set on the support frame 1, and the limiting structure 22 is multiple and distributed on the outer wall of the placement frame 21, which is used to align the bag opening of the inner packaging bag with the bag opening of the outer bag body and then limit it.

[0025] In this embodiment, because the ton bag is square, the placement frame 21 is configured as a square frame. The outer bag body is placed in the placement frame 21 and extended downward, with the bag opening of the outer bag body folded outward to the outer wall of the placement frame 21; then the inner packaging bag is placed in the outer bag body, and the bag opening of the inner packaging bag is folded outward to align with the bag opening of the outer bag body; finally, the multiple limiting structures 22 are adjusted to press the bag opening of the inner packaging bag and the bag opening of the outer bag body, ensuring that the bag opening of the inner packaging bag and the bag opening of the outer bag body are aligned and stably limited on the placement frame 21, so that the placement frame 21 can slide into the hot pressing welding position to complete the hot pressing welding by the hot pressing device.

[0026] Based on the above scheme:

[0027] Each of the limiting structures 22 includes a limiting block 221 and a limiting rod 222. The bottom end of the limiting block 221 is rotatably connected to the outer wall of the placement frame 21 through a support portion, and a movable hole 223 is opened on the limiting block 221 along its length direction; one end of the limiting rod 222 is connected to the outer wall of the placement frame 21 and the other end thereof is freely passed through the movable hole 223 and is threadedly connected to a locking nut 224 for driving the top end of the limiting block 221 to rotate toward the outer wall of the placement frame 21.

[0028] The support portion includes a rotating shaft that freely passes through the bottom end of the limiting block 221. Both ends of the rotating shaft are rotatably connected to support blocks fixed to the outer wall of the placement frame 21, thereby stably rotatably connecting the limiting block 221. By rotating the locking nut 224, the limiting block 221 rotates about the support portion toward the outer wall of the placement frame 21 until the free end of the limiting block 221 presses against the opening of the inner packaging bag, thereby stably securing the openings of the inner packaging bag and the outer bag body to the placement frame 21. When the ton bag is welded, the locking nut 224 is rotated in the opposite direction, and the locking nut 224 moves on the limiting rod 222 in the direction away from the limiting block 221. After the locking nut 224 moves a certain distance away from the limiting block 221, the free end of the limiting block 221 can be rotated around the support portion in the direction away from the outer wall of the placement frame 21. The free end of the limiting block 221 releases the pressure on the bag opening of the inner packaging bag. At this time, the ton bag after welding can be removed from the placement frame 21.

[0029] In this embodiment, a pressing head 225 is formed on the top of the limit block 221, facing the outer wall of the placement frame 21. The design of the pressing head 225 can reduce the rotation angle of the limit block 221 when pressing the inner bag opening, making the inner bag opening pressing more quickly. It also reduces the contact area when pressing the inner bag opening, increasing the pressure per unit area. The limit rod 222 guides the rotation of the limit block 221, and the provision of the movable hole 223 prevents the limit rod 222 from restricting the rotation of the limit block 221.

[0030] In order to make the fixed limit frame 2 slide accurately into the installation position and the hot pressing welding position, as shown in the following figure: Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7 As shown, according to another embodiment of the present invention, a ton bag inner packaging bag welding machine, wherein the support frame 1 is fixedly provided with end positioning blocks 4 on the separated sides of the first installation position and the second installation position, and the support frame 1 is provided with one-way positioning structures 5 on both sides of the hot pressing welding position; the fixed limit frame 2 slides over one of the one-way positioning structures 5 and then counteracts with the other one-way positioning structure 5 to place the fixed limit frame 2 forwardly under the hot pressing component 3 and the fixed limit frame 2 presses the one-way positioning structure 5 that has passed over so that the fixed limit frame 2 is not restricted in sliding in the opposite direction.

[0031] When the ton bag after hot pressing welding is completed in the hot pressing welding position needs to be slid into the first installation position or the second installation position to remove the ton bag and replace it with a new inner packaging bag and outer bag body, the fixed limit frame 2 is slid to abut against the corresponding end positioning block 4. At this time, the fixed limit frame 2 accurately slides into the first installation position or the second installation position. When the inner packaging bag and outer bag body installed in the first installation position or the second installation position need to be slid into the hot pressing welding position for hot pressing welding, the fixed limit frame 2 is slid. The fixed limit frame 2 first passes over one of the one-way positioning structures 5 and then abuts against the other one-way positioning structure 5. At this time, the placement frame 21 is just adapted to the bottom of the hot press to accurately position; at the same time, the tail end of the fixed limit frame 2 presses the one-way positioning structure 5 that has passed over, so that the one-way positioning structure 5 will not reset to hinder the reverse sliding of the fixed limit frame 2, so that the two fixed limit frames 2 can slide stably and accurately between the hot pressing welding position and the corresponding installation position.

[0032] Based on the above scheme:

[0033] The two one-way positioning structures 5 have the same structure and are arranged symmetrically. Each one-way positioning structure 5 includes a mounting groove 51 and a one-way positioning block 52. The mounting groove 51 is opened on the support frame 1. One end of the one-way positioning block 52 is rotatably connected to one end of the mounting groove 51 through a rotation reset portion. The one-way positioning block 52 has a limited state (such as a state in which the one-way positioning block 52 abuts against the inner wall of the mounting groove 51 and the other end is placed outside the mounting groove 51) Figure 6 ) and the release state (such as Figure 7 ).

[0034] In this embodiment, the rotation reset portion is an existing structure, consisting of a rotating shaft and a torsion spring; when the one-way positioning block 52 is in the released state, when the sliding fixed limit frame 2 is disengaged from the pressure on the one-way positioning block 52, the rotation reset portion provides a reset ability to make the free end of the one-way positioning block 52 rotate out of the mounting groove 51 and be placed outside the mounting groove 51. At this time, the one-way positioning block 52 can offset the sliding of the corresponding fixed limit frame 2.

[0035] Specifically, when one of the fixed limit frames 2 needs to slide from the first installation position into the hot pressing welding position, the fixed limit frame 2 contacts the one-way positioning block 52 during the sliding process, so that the one-way positioning block 52 rotates around the rotation reset portion to rotate into the installation groove 51 to contact the bottom of the fixed limit frame 2; until the front end of the fixed limit frame 2 is against the other one-way positioning block 52, this one-way positioning block 52 is limited by the inner wall of the installation groove 51, and this one-way positioning block 52 cannot rotate. At this time, the fixed limit frame 2 cannot continue to move, and the placement frame 21 in this fixed limit frame 2 is just adapted to the bottom of the hot press for precise positioning; and the tail end of the fixed limit frame 2 also presses the one-way positioning block 52 that has passed over, so that when the ton bag completes hot pressing welding, it will not be hindered when it slides back to the first installation position in the opposite direction.

[0036] When another fixed limiting frame 2 needs to be slid from the second installation position into the hot pressing welding position, the above method is used in the same way.

[0037] It should be noted that: the top of the support frame 1 is composed of two support columns arranged in parallel, and the tops of the two support columns are provided with slide rails 11 along their length directions. The two end positioning blocks 4 are fixedly arranged at the two ends of the top of one of the slide rails 11 to limit the sliding of the fixed limit frame 2 and prevent the fixed limit frame 2 from sliding out of the slide rail 11; the mounting grooves 51 in the two one-way positioning structures 5 are both opened at the top of a track.

[0038] A sliding groove is formed between the bottom of the placement frame 21 and each slide rail 11 to ensure stable installation of the placement frame 21 and the two slide rails 11.

[0039] The sliding of the placement frame 21 can be performed manually, or can be driven to slide by an existing driving device such as a cylinder.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A ton bag inner packaging bag welding machine, characterized in that, include: A support frame, wherein a first mounting position, a hot pressing welding position, and a second mounting position are linearly arranged in sequence on the support frame; There are two fixed limiting frames, one of which slides between the first installation position and the hot pressing welding position, and the other slides between the second installation position and the hot pressing welding position. Each fixed limiting frame is used to place the inner packaging bag and the outer bag body and align the bag opening of the inner packaging bag with the bag opening of the outer bag body before limiting the position; A hot pressing assembly is connected to the support frame and slides in a vertical direction on the hot pressing welding position.

2. A ton bag inner packaging bag welding machine according to claim 1, characterized in that: The fixed limiting frame includes: A placement frame, wherein the placement frame is slidably arranged on the support frame; The limiting structure has multiple limiting structures and is distributed on the outer wall of the placement frame, and is used to limit the position of the bag opening of the inner packaging bag after it is aligned with the bag opening of the outer bag body.

3. A ton bag inner packaging bag welding machine according to claim 2, characterized in that: Each of the limiting structures comprises: A limit block, the bottom end of which is rotatably connected to the outer wall of the placement frame through a support portion, and a movable hole is opened on the limit block along its length direction; A limiting rod, one end of which is connected to the outer side wall of the placement frame and the other end of which is freely passed through the movable hole and is threadedly connected to a locking nut for driving the top end of the limiting block to rotate toward the outer side wall of the placement frame.

4. A ton bag inner packaging bag welding machine according to claim 3, characterized in that: A pressing head is formed on the top of the limiting block toward the outer side wall of the placement frame.

5. The ton bag inner packaging bag welding machine according to claim 1, characterized in that: The support frame is provided with end positioning blocks on the separated sides of the first installation position and the second installation position, and the support frame is provided with one-way positioning structures on both sides of the hot pressing welding position; When the fixed limit frame slides over one of the one-way positioning structures, it will be offset against the other one-way positioning structure so that the fixed limit frame is placed forwardly under the hot pressing component and the fixed limit frame presses the one-way positioning structure it has passed over so that the fixed limit frame can slide in the opposite direction without restriction.

6. The ton bag inner packaging bag welding machine according to claim 5, characterized in that: The two one-way positioning structures have the same structure and are symmetrically arranged. Each one-way positioning structure includes: A mounting slot, the mounting slot being provided on the support frame; A one-way positioning block, one end of which is rotatably connected to one end of the mounting groove through a rotating reset portion. The one-way positioning block has a limiting state in which it is against the inner wall of the mounting groove and the other end is placed outside the mounting groove, and a releasing state in which it is pressed by a corresponding fixed limiting frame to be transferred into the mounting groove for storage.

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