Aluminum film welding equipment for powder-liquid double-chamber bag
By punching positioning holes in the aluminum foil and using positioning pins for support, the problems of incomplete aluminum foil welding and gas loss were solved, achieving higher quality and more efficient welding results.
Patent Information
- Application Number
- CN202423186723.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing powder-liquid dual-chamber bag aluminum film welding equipment is prone to aluminum film misalignment and poor welding when there is no positioning device, resulting in problems such as poor aluminum film welding, poor aluminum film welding, and loss of filling gas inside the aluminum mold.
Positioning holes are punched in the aluminum film, and positioning is achieved by using positioning pins on the fixture to cooperate with the positioning holes on the aluminum film. The positioning punching cylinder punches positioning holes in the aluminum film, and the positioning pins on the fixture cooperate with the positioning holes on the aluminum film to avoid aluminum film misalignment and ensure the accuracy of subsequent welding processes.
This effectively avoids incomplete welding of the aluminum mold, prevents the loss of filling gas inside the aluminum mold, and improves welding quality and efficiency.
Smart Images
Figure CN223720333U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to welding equipment technical field, concretely relates to a kind of powder liquid double-chamber bag aluminum film welding equipment. BACKGROUND
[0002] The original powder liquid double-chamber bag aluminum film machine welding method is that product bag wrapped by aluminum film is sent to welding station by annular track clamp, sequentially through upper weak welding mold to weld aluminum film, lower weak welding mold welds aluminum film, tail welding mold welds tail of aluminum film product, and then through transfer inflation station to complete gas filling in aluminum film chamber, periphery welding mold welds periphery of film product, and then cooling and punching are sequentially completed to complete all actions of aluminum film welding machine, and the cycle period is long, and there are many problems of welding wrinkle defective products;At the same time, aluminum film is prone to deviation without positioning device during welding, which leads to loose aluminum film welding and gas loss in aluminum mold. SUMMARY
[0003] In view of the problems in the prior art, the utility model aims at providing a kind of powder liquid double-chamber bag aluminum film welding equipment to solve the problems of loose aluminum film welding and gas loss in aluminum mold due to the deviation of aluminum film without positioning device during welding in the prior art.
[0004] A kind of powder liquid double-chamber bag aluminum film welding equipment, including mainframe, conveying mechanism, transfer gripper and membrane pulling mechanism;Mainframe is transversely arranged, and conveying mechanism is arranged on mainframe, and membrane pulling mechanism is arranged on the side of mainframe;
[0005] Conveying mechanism includes annular conveyor belt and clamp, and annular conveyor belt is longitudinally and intervally arranged on the both sides of mainframe, and the both ends of clamp are connected with annular conveyor belt arranged on the both sides of mainframe, and a plurality of positioning columns are arranged on the top of clamp;
[0006] Membrane pulling mechanism includes membrane pulling rack connected with the side of mainframe, and aluminum film cutting plate, positioning punching cylinder and membrane pulling cylinder are installed on membrane pulling rack;Membrane pulling cylinder is used to pull aluminum film, positioning punching cylinder is used to punch positioning hole adapted to positioning column on aluminum film, and aluminum film cutting plate is used to cut aluminum film after punching.
[0007] Further, the membrane pulling mechanism includes a cursor sensor installed on the mainframe, and the cursor sensor is used to sense the cursor arranged on the aluminum film.
[0008] Further, it includes lower weak welding mechanism arranged on mainframe, and the lower weak welding mechanism includes lower weak welding rack, first lower weak welding servo cylinder, second lower weak welding servo cylinder, lower weak welding leveling plate, lower weak welding mold and lower weak welding fixed plate;Lower weak welding mold includes first mold and second mold.
[0009] The lower weak-welding frame is installed on the main frame, and a first lower weak-welding servo cylinder is installed on the top of the lower weak-welding frame; a second lower weak-welding servo cylinder is installed on the main frame at a corresponding position; a lower weak-welding fixing plate is connected to the bottom of the first lower weak-welding servo cylinder, and a second mold is connected to the bottom surface of the lower weak-welding fixing plate connected to the bottom of the first lower weak-welding servo cylinder; a lower weak-welding fixing plate is connected to the top of the second lower weak-welding servo cylinder, and a first mold is connected to the top surface of the lower weak-welding fixing plate connected to the top of the second lower weak-welding servo cylinder; a lower weak-welding leveling plate is arranged on the first mold.
[0010] Further, the upper weak-welding mechanism is arranged on the main frame, and the upper weak-welding mechanism comprises an upper weak-welding frame, a first upper weak-welding servo cylinder, a second upper weak-welding servo cylinder, an upper weak-welding leveling plate, an upper weak-welding mold and an upper weak-welding fixing plate; the upper weak-welding mold is the same in structure as the lower weak-welding mold, and comprises a first mold and a second mold;
[0011] The upper weak-welding frame is installed on the main frame, and a first upper weak-welding servo cylinder is installed on the top of the upper weak-welding frame; a second upper weak-welding servo cylinder is installed on the main frame at a corresponding position; an upper weak-welding fixing plate is connected to the bottom of the first upper weak-welding servo cylinder, and a first mold is connected to the bottom surface of the upper weak-welding fixing plate connected to the bottom of the first upper weak-welding servo cylinder; an upper weak-welding fixing plate is connected to the top of the second upper weak-welding servo cylinder, and a second mold is connected to the top surface of the upper weak-welding fixing plate connected to the top of the second upper weak-welding servo cylinder; an upper weak-welding leveling plate is arranged on the second mold.
[0012] Further, the tail welding mechanism is arranged on the main frame, and the tail welding mechanism comprises a tail welding frame, a first tail opening and closing power cylinder, a second tail opening and closing power cylinder and a tail welding mold; the tail welding mold comprises two symmetrically arranged third molds;
[0013] The tail welding frame is installed on the main frame, and a first tail opening and closing power cylinder is installed on the top of the tail welding frame; a second tail opening and closing power cylinder is installed on the main frame at a corresponding position; a downward arranged third mold is connected to the bottom of the first tail opening and closing power cylinder; an upward arranged third mold is connected to the top of the second tail opening and closing power cylinder.
[0014] Further, the peripheral welding mechanism is arranged on the main frame, and the peripheral welding mechanism comprises a peripheral welding frame, a first peripheral welding opening and closing power cylinder, a second peripheral welding opening and closing power cylinder and a peripheral welding mold; the peripheral welding mold comprises two symmetrically arranged fourth molds;
[0015] The peripheral frame is installed on the main frame, and a first peripheral welding opening and closing power cylinder is installed on the top of the peripheral frame; a second peripheral welding opening and closing power cylinder is installed on the main frame at a corresponding position; a downward arranged fourth mold is connected to the bottom of the first peripheral welding opening and closing power cylinder; an upward arranged fourth mold is connected to the top of the second peripheral welding opening and closing power cylinder.
[0016] Further, the corner welding mechanism includes a corner welding mechanism frame, a first corner welding opening and closing power cylinder, a second corner welding opening and closing power cylinder, and a corner welding die.
[0017] The corner welding mechanism frame is installed on the main frame, and the first corner welding opening and closing power cylinder is installed on the top of the corner welding mechanism frame.
[0018] Beneficial effects: The positioning punching cylinder is arranged to punch a positioning hole on the aluminum film, the positioning column on the clamp cooperates with the positioning hole on the aluminum film to position the aluminum film, the subsequent welding process of the aluminum film is facilitated, and the problem of gas loss caused by loose welding of the aluminum film is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the specification will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art according to these drawings.
[0020] Figure 1 It is the overall structure schematic diagram of the embodiment of the present application.
[0021] Figure 2 It is the structure schematic diagram of the film pulling mechanism of the embodiment of the present application.
[0022] Figure 3 It is the structure schematic diagram of the weak welding die of the embodiment of the present application.
[0023] Figure 4 It is the structure schematic diagram of the tail welding die of the embodiment of the present application.
[0024] Figure 5 It is the structure schematic diagram of the peripheral welding die of the embodiment of the present application.
[0025] Figure 6 It is the structure schematic diagram of the corner welding die of the embodiment of the present application.
[0026] Figure 7 It is the structure schematic diagram of the clamp of the embodiment of the present application.
[0027] In the diagram: 101, Circular conveyor belt; 102, Fixture; 1021, Positioning post; 201, Film stretching electric cylinder; 202, Cursor sensor; 203, Positioning punching cylinder; 204, Aluminum film cutting plate; 205, Film stretching machine frame; 3, Transfer gripper; 401, Lower weak-welding frame; 402, Lower weak-welding servo electric cylinder; 403, Lower weak-welding mold; 4031, First mold; 4032, Second mold; 404, Lower weak-welding flat plate; 501. Upper weak-welding frame; 502, Upper weak-welding servo electric cylinder; 601, Tail welding frame; 602, Tail opening and closing power cylinder; 603, Tail welding mold; 6031, Third mold; 701, Peripheral welding frame; 702, Peripheral welding opening and closing power cylinder; 703, Peripheral welding mold; 7031, Fourth mold; 801, Fillet welding frame; 802, Fillet welding opening and closing power cylinder; 803, Fillet welding mold; 8031, Fifth mold; 9, Main frame. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0029] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0030] like Figures 1-7 The powder-liquid dual-chamber bag aluminum film welding equipment shown includes a main frame 9, a conveying mechanism, a transfer gripper 3, and a film pulling mechanism; the main frame 9 is arranged horizontally, the conveying mechanism is provided on the main frame 9, and the film pulling mechanism is provided on one side of the main frame 9;
[0031] The conveying mechanism includes an annular conveyor belt 101 and a clamp 102. The annular conveyor belts 101 are arranged parallel to each other on both sides of the main frame 9 with longitudinal spacing. The clamps 102 arranged longitudinally are connected to the annular conveyor belts 101 arranged on both sides of the main frame 9 at both ends. Several positioning posts 1021 are provided on the top of the clamps 102.
[0032] The film pulling mechanism comprises a film pulling frame 205 connected with one side of the main frame 9, and the film pulling frame 205 is provided with an aluminum film cutting plate 204, a positioning punching cylinder, a cursor sensor 202 and a film pulling cylinder 201; the film pulling cylinder 201 is used for pulling the aluminum film, the cursor sensor 202 is used for sensing the cursor arranged at the end of the aluminum film and controlling the film pulling cylinder 201, the positioning punching cylinder is used for punching a positioning hole adapted to the positioning column 1021 on the aluminum film, and the aluminum film cutting plate 204 is used for cutting the aluminum film after punching.
[0033] The transfer gripper 3 is used for moving the cut aluminum film to the clamp 102. The transfer gripper 3 is a prior art and will not be described in detail here.
[0034] In the embodiment, the positioning punching cylinder is arranged to punch a positioning hole on the aluminum film, and the positioning column 1021 on the clamp 102 cooperates with the positioning hole on the aluminum film to position the aluminum film, so that the subsequent welding process of the aluminum film is facilitated, and the problem of gas loss caused by poor welding of the aluminum film is avoided.
[0035] Further comprising a lower weak welding mechanism, an upper weak welding mechanism, a tail welding mechanism, a peripheral welding mechanism and an angle welding mechanism arranged in sequence for welding the aluminum film;
[0036] The lower weak welding mechanism comprises a lower weak welding frame 401, a lower weak welding servo cylinder 402, a lower weak welding leveling plate, a lower weak welding die 403 and a lower weak welding fixed plate; the number of the lower weak welding servo cylinder 402 is two, which are referred to as a first lower weak welding servo cylinder 402 and a second lower weak welding servo cylinder 402; the lower weak welding die 403 comprises a first die 4031 and a second die 4032;
[0037] The lower weak welding frame 401 is installed on the main frame 9, the first lower weak welding servo cylinder 402 is installed on the top of the lower weak welding frame 401, and the second lower weak welding servo cylinder 402 is installed on the corresponding position of the main frame 9; the bottom of the first lower weak welding servo cylinder 402 is connected with the lower weak welding fixed plate, the bottom surface of the lower weak welding fixed plate connected with the bottom of the first lower weak welding servo cylinder 402 is connected with the second die 4032; the top of the second lower weak welding servo cylinder 402 is connected with the lower weak welding fixed plate, and the top surface of the lower weak welding fixed plate connected with the top of the second lower weak welding servo cylinder 402 is connected with the first die 4031; the first die 4031 is provided with a lower weak welding leveling plate, which also serves as a cooling plate, and cooling water is introduced into the cooling plate.
[0038] In the embodiment, the lower weak welding mechanism is a prior art, and the lower weak welding die 403 is used for weak welding of the aluminum film arranged on the lower side of the powder-liquid double-chamber bag; the lower weak welding leveling plate is used for leveling the powder-liquid double-chamber bag and cooling the die, and the temperature of the first die 4031 is adjusted.
[0039] The upper weak welding mechanism comprises an upper weak welding frame 501, upper weak welding servo cylinders 502, an upper weak welding leveling plate, an upper weak welding die and an upper weak welding fixing plate. The number of the upper weak welding servo cylinders 502 is two, which are referred to as a first upper weak welding servo cylinder 502 and a second upper weak welding servo cylinder 502. The upper weak welding die is the same in structure as the lower weak welding die and comprises a first die 4031 and a second die 4032.
[0040] The upper weak welding frame 501 is installed on the main frame 9. The first upper weak welding servo cylinder 502 is installed on the top of the upper weak welding frame 501. The second upper weak welding servo cylinder 502 is installed on the corresponding position of the main frame 9. The first upper weak welding servo cylinder 502 is connected with the upper weak welding fixing plate at the bottom. The first die 4031 is connected with the bottom surface of the upper weak welding fixing plate connected with the bottom of the first upper weak welding servo cylinder 502. The second upper weak welding servo cylinder 502 is connected with the upper weak welding fixing plate at the top. The second die 4032 is connected with the top surface of the upper weak welding fixing plate connected with the top of the second upper weak welding servo cylinder 502. The second die 4032 is provided with the upper weak welding leveling plate. The upper weak welding leveling plate serves as a cooling plate. Cooling water is introduced into the cooling plate.
[0041] In the embodiment, the upper weak welding mechanism and the lower weak welding mechanism are the same in structure and are prior art. The upper weak welding die is used for weak welding of the aluminum film arranged on the upper side of the powder-liquid double-chamber bag. The upper weak welding leveling plate is used for leveling the powder-liquid double-chamber bag and cooling the first die 4031 to adjust the temperature of the first die 4031.
[0042] The tail welding mechanism comprises a tail welding frame 601, tail opening and closing power cylinders 602 and a tail welding die 603. The number of the tail opening and closing power cylinders 602 is two, which are referred to as a first tail opening and closing power cylinder 602 and a second tail opening and closing power cylinder 602. The tail welding die 603 comprises two symmetrical third dies.
[0043] The tail welding frame 601 is installed on the main frame 9. The first tail opening and closing power cylinder 602 is installed on the top of the tail welding frame 601. The second tail opening and closing power cylinder 602 is installed on the corresponding position of the main frame 9. The bottom of the first tail opening and closing power cylinder 602 is connected with the downward third die. The top of the second tail opening and closing power cylinder 602 is connected with the upward third die.
[0044] In the embodiment, the two tail opening and closing power cylinders 602 are used for controlling the tail welding die 603 to perform die closing and tail welding of the aluminum film. The tail welding mechanism is prior art.
[0045] The peripheral welding mechanism comprises a peripheral welding frame 701, peripheral welding opening and closing power cylinders 702, and peripheral welding dies 703. The peripheral welding opening and closing power cylinders 702 are two in number and are respectively referred to as a first peripheral welding opening and closing power cylinder 702 and a second peripheral welding opening and closing power cylinder 702. The peripheral welding dies 703 comprise two fourth dies symmetrically arranged.
[0046] The peripheral frame is mounted on the main frame 9, the first peripheral welding opening and closing power cylinder 702 is mounted on the top of the peripheral frame, and the second peripheral welding opening and closing power cylinder 702 is mounted on the corresponding position of the main frame 9. The fourth die is arranged downward at the bottom of the first peripheral welding opening and closing power cylinder 702, and the fourth die is arranged upward at the top of the second peripheral welding opening and closing power cylinder 702.
[0047] In this embodiment, the two peripheral welding opening and closing power cylinders 702 are used to control the peripheral welding dies 703 to close the dies and perform tail welding on the aluminum film. The peripheral welding mechanism is a prior art.
[0048] The corner welding mechanism comprises a corner welding frame 801, corner welding opening and closing power cylinders 802, and corner welding dies 803. The corner welding opening and closing power cylinders 802 are two in number and are respectively referred to as a first corner welding opening and closing power cylinder 802 and a second corner welding opening and closing power cylinder 802. The corner welding dies 803 comprise two fifth dies symmetrically arranged.
[0049] The corner welding frame 801 is mounted on the main frame 9, the first corner welding opening and closing power cylinder 802 is mounted on the top of the corner welding frame 801, and the second corner welding opening and closing power cylinder 802 is mounted on the corresponding position of the main frame 9. The fifth die is arranged downward at the bottom of the first corner welding opening and closing power cylinder 802, and the fifth die is arranged upward at the top of the second corner welding opening and closing power cylinder 802.
[0050] In this embodiment, the two corner welding opening and closing power cylinders 802 are used to control the peripheral welding dies 703 to close the dies and perform tail welding on the aluminum film. The corner welding mechanism is a prior art.
[0051] Working principle: the film pulling cylinder 201 pulls and flattens the aluminum film roll placed on the film pulling frame 205, and moves the aluminum film to the direction of the aluminum film cutting plate 204, when the cursor sensor 202 senses the cursor set on the aluminum film, the film pulling cylinder 201 stops moving, after the positioning and punching cylinder punches a positioning hole on the aluminum film, the film pulling cylinder moves the aluminum film to the specified position and cuts it through the aluminum film cutting plate 204, the cut aluminum film is moved to the conveying mechanism through the transfer gripper 3, the positioning column 1021 on the clamp 102 is aligned with the positioning hole on the aluminum film, then the powder-liquid double-chamber bag is placed on the clamp 102 through the transfer gripper 3, then another aluminum film is placed on the clamp 102 so that the powder-liquid double-chamber bag is provided with aluminum films on the upper and lower sides, then the lower aluminum film of the powder-liquid double-chamber bag is welded to the powder-liquid double-chamber bag through the lower weak welding mechanism, the upper aluminum film of the powder-liquid double-chamber bag is welded to the powder-liquid double-chamber bag through the upper weak welding mechanism, the aluminum film and the tail part of the powder-liquid double-chamber bag are welded through the tail welding mechanism, the aluminum film and the periphery of the powder-liquid double-chamber bag are welded through the peripheral welding mechanism, and the aluminum film and the corner part of the powder-liquid double-chamber bag are welded through the corner welding mechanism.
[0052] Although the preferred embodiments of the present application have been described, those skilled in the art who understand the basic inventive concept can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and changes of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these changes and modifications.
Claims
1. A powder-liquid dual chamber bag aluminum film welding apparatus, characterized by, The application relates to a main frame, a conveying mechanism, a transfer gripper and a film pulling mechanism; the main frame is arranged transversely, the conveying mechanism is arranged on the main frame, and the film pulling mechanism is arranged on one side of the main frame; The conveying mechanism comprises annular conveying belts and clamps, the annular conveying belts are arranged on the two sides of the main frame in a longitudinal direction, the clamps are connected with the annular conveying belts arranged on the two sides of the main frame at two ends, and a plurality of positioning columns are arranged on the top of the clamps; The film pulling mechanism comprises a film pulling frame connected with one side of the main frame, an aluminum film cutting plate, a positioning punching cylinder and a film pulling cylinder are arranged on the film pulling frame; the film pulling cylinder is used for pulling the aluminum film, the positioning punching cylinder is used for punching positioning holes matched with the positioning columns on the aluminum film, and the aluminum film cutting plate is used for cutting the aluminum film after punching.
2. A powder and liquid dual chamber bag aluminum film welding apparatus according to claim 1, characterized in that, The film pulling mechanism comprises a cursor sensor arranged on the main frame, and the cursor sensor is used for sensing a cursor arranged on the aluminum film.
3. The powder-liquid dual chamber bag aluminum film welding apparatus according to claim 2, characterized by The application further relates to a lower weak welding mechanism arranged on the main frame, the lower weak welding mechanism comprising a lower weak welding frame, a first lower weak welding servo cylinder, a second lower weak welding servo cylinder, a lower weak welding leveling plate, a lower weak welding die and a lower weak welding fixing plate; the lower weak welding die comprises a first die and a second die; The lower weak welding frame is arranged on the main frame, the first lower weak welding servo cylinder is arranged on the top of the lower weak welding frame, and the second lower weak welding servo cylinder is arranged on the corresponding position of the main frame; the first lower weak welding servo cylinder is connected with the lower weak welding fixing plate at the bottom, the second lower weak welding servo cylinder is connected with the lower weak welding fixing plate at the top, the lower weak welding fixing plate is connected with the second die at the bottom of the first lower weak welding servo cylinder, and the lower weak welding fixing plate is connected with the first die at the top of the second lower weak welding servo cylinder; the first die is provided with the lower weak welding leveling plate.
4. The powder-liquid dual chamber bag aluminum film welding apparatus according to claim 3, characterized by The application further relates to an upper weak welding mechanism arranged on the main frame, the upper weak welding mechanism comprising an upper weak welding frame, a first upper weak welding servo cylinder, a second upper weak welding servo cylinder, an upper weak welding leveling plate, an upper weak welding die and an upper weak welding fixing plate; the upper weak welding die is the same in structure as the lower weak welding die and comprises a first die and a second die; The upper weak welding frame is arranged on the main frame, the first upper weak welding servo cylinder is arranged on the top of the upper weak welding frame, and the second upper weak welding servo cylinder is arranged on the corresponding position of the main frame; the first upper weak welding servo cylinder is connected with the upper weak welding fixing plate at the bottom, the second upper weak welding servo cylinder is connected with the upper weak welding fixing plate at the top, the upper weak welding fixing plate is connected with the first die at the bottom of the first upper weak welding servo cylinder, and the upper weak welding fixing plate is connected with the second die at the top of the second upper weak welding servo cylinder; the second die is provided with the upper weak welding leveling plate.
5. A powder and liquid dual chamber bag aluminum film welding apparatus according to claim 4, characterized in that, The application further relates to a tail welding mechanism arranged on the main frame, the tail welding mechanism comprising a tail welding frame, a first tail opening and closing power cylinder, a second tail opening and closing power cylinder and a tail welding die; the tail welding die comprises two symmetrical third dies; The tail welding frame is arranged on the main frame, the first tail opening and closing power cylinder is arranged on the top of the tail welding frame, and the second tail opening and closing power cylinder is arranged on the corresponding position of the main frame; the first tail opening and closing power cylinder is connected with the downward arranged third die at the bottom, and the second tail opening and closing power cylinder is connected with the upward arranged third die at the top.
6. A powder and liquid dual chamber bag aluminum film welding apparatus according to claim 5, characterized in that, The peripheral welding mechanism includes a peripheral welding frame, a first peripheral welding opening and closing power cylinder, a second peripheral welding opening and closing power cylinder, and a peripheral welding die. The peripheral frame is installed on the main frame, the first peripheral welding opening and closing power cylinder is installed on the top of the peripheral frame, and the second peripheral welding opening and closing power cylinder is installed on the corresponding position of the main frame; the fourth die is connected to the bottom of the first peripheral welding opening and closing power cylinder and is arranged downward; and the fourth die is connected to the top of the second peripheral welding opening and closing power cylinder and is arranged upward.
7. The powder and liquid dual chamber bag aluminum film welding apparatus according to claim 6, characterized by, The corner welding mechanism includes a corner welding frame, a first corner welding opening and closing power cylinder, a second corner welding opening and closing power cylinder, and a corner welding die. The corner welding frame is installed on the main frame, the first corner welding opening and closing power cylinder is installed on the top of the corner welding frame, and the second corner welding opening and closing power cylinder is installed on the corresponding position of the main frame; the fifth die is connected to the bottom of the first corner welding opening and closing power cylinder and is arranged downward; and the fifth die is connected to the top of the second corner welding opening and closing power cylinder and is arranged upward.