Co-extrusion film sealing and welding jig

Abstract

The utility model relates to a sealing and welding device, in particular to a co-extrusion film sealing and welding jig. The injection mold comprises a bottom plate, a lower mold is arranged on the bottom plate, the lower mold comprises a fixed block and a sliding block which are arranged in parallel side by side, a pushing structure used for driving the sliding block to slide horizontally is arranged on the bottom plate, recesses are formed in the corresponding side faces of the fixed block and the sliding block, and the two recesses are in butt joint to form a cavity matched with a bottle opening injection molding part body in shape. The fixing block is connected with a first positioning frame, the sliding block is connected with a second positioning frame, receding holes are formed in the corresponding side faces of the first positioning frame and the second positioning frame, and the height of the receding holes from the upper surface of the bottom plate to the bottle opening injection molding part is larger than that of the bottle opening injection molding part. And the lower surface of the upper mold is provided with a recess matched with the upper part of the bottleneck injection molding part. The device solves the problems that sealing is not firm, and clamping is not convenient.

Description

Technical Field

[0001] The utility model relates to a sealing and welding device, in particular to a co-extrusion film sealing and welding jig. Background Art

[0002] With the development of society, the demand for parts sealing is getting bigger and bigger, the quality and precision requirements are getting higher and higher, the size is relatively more precise, and the appearance requirements are more stringent. The existing technology generally adopts the heat sealing method, which heats the plastic film to a certain temperature to soften it, and then bonds it to the bottle mouth to achieve the bottle mouth sealing. However, the structure of the bottle mouth injection molding is complicated, the use of plastic sealing is not firm, and the clamping is inconvenient. Utility Model Content

[0003] In order to solve the problems in the related art, the utility model provides a co-extrusion film sealing welding fixture, which solves the problems of loose sealing and inconvenient clamping.

[0004] In order to solve the above problems, the following technical solutions are provided:

[0005] The utility model discloses a co-extruded film sealing and welding jig, comprising a bottom plate, a lower mold being arranged on the bottom plate, the lower mold comprising a fixed block and a sliding block arranged in parallel, the fixed block being fixedly connected to the bottom plate, the bottom plate being provided with a pushing structure for driving the sliding block to slide horizontally, the fixed block and the sliding block being provided with depressions on corresponding side surfaces, the two depressions being butted together to form a cavity matching the main shape of a bottle mouth injection molded part, the fixed block being connected with a first positioning frame, the sliding block being connected with a second positioning frame, the first positioning frame and the second positioning frame being provided with clearance holes on corresponding side surfaces, the clearance holes being higher than the height of the bottle mouth injection molded part on the upper surface of the bottom plate, the second positioning frame being provided with a groove matching the handle of the bottle mouth injection molded part, an upper mold being provided above the first positioning frame and the second positioning frame, the lower surface of the upper mold being provided with a depression matching the upper part of the bottle mouth injection molded part.

[0006] In the above scheme, the bottle mouth injection molded part is placed on the fixed block by setting the pushing structure, the mold clamping cylinder is started, and the sliding block is pushed to clamp the bottle mouth injection molded part, thereby solving the problem of inconvenient clamping. When the start button is started, the upper mold is pressed down with the equipment head until the bottle mouth sealing film is fused to the bottle mouth injection molded part, thereby solving the problem of loose sealing.

[0007] The pushing structure comprises a cylinder connecting plate and a mold clamping cylinder, wherein the cylinder connecting plate is fixedly connected to a sliding block, the mold clamping cylinder is located on a bottom plate, a piston rod of the mold clamping cylinder is fixedly connected to the cylinder connecting plate, and sliding of the sliding block is controlled by the mold clamping cylinder.

[0008] In the above scheme, the mold clamping cylinder is arranged, and the mold clamping cylinder pushes the sliding block, thereby clamping the bottle mouth injection molded part, which is not easy to fall off.

[0009] The fixed block is provided with a first guide hole, and the first positioning frame and the fixed block are provided with a first mounting hole at corresponding positions. The guide column passes through the first guide hole into the first mounting hole, and the guide column and the first positioning frame are matched in an up and down sliding state. The guide column and the fixed block are matched in a fixed state, and a spring is provided on the section of the guide column located between the fixed block and the first positioning frame.

[0010] The sliding block is provided with a second guide hole, and the second positioning frame and the sliding block are provided with a second mounting hole at corresponding positions. The guide column passes through the second guide hole to the second mounting hole. The guide column and the second positioning frame are matched in an up and down sliding state. The guide column and the sliding block are fixedly matched. A spring is provided on the section of the guide column located between the sliding block and the second positioning frame.

[0011] In the above scheme, by setting the spring, after the upper mold is pressed down, the spring provides a rebound force to pop out the bottle mouth injection molded part, making it easier to demould.

[0012] The guide column is a screw, and the first mounting hole and the second mounting hole are both threaded holes.

[0013] In the above scheme, the screws are provided as standard parts and can be purchased directly without customization, thereby greatly reducing the production cost.

[0014] The fixed block is provided with a protrusion, and the sliding block is provided with a notch corresponding to the protrusion.

[0015] In the above scheme, the protrusion and the notch are adapted to facilitate the mold closing of the sliding block and the fixed block, so as to press the bottle mouth injection molded part.

[0016] The above solution has the following advantages:

[0017] 1. A co-extrusion film sealing and welding jig of the utility model includes a bottom plate, a lower mold is arranged on the bottom plate, the lower mold includes a fixed block and a sliding block arranged in parallel, the fixed block is fixedly connected to the bottom plate, a pushing structure for driving the sliding block to slide horizontally is arranged on the bottom plate, recesses are arranged on the corresponding sides of the fixed block and the sliding block, the two recesses are connected to form a cavity that matches the main shape of the bottle mouth injection molded part, a first positioning frame is connected to the fixed block, and a second positioning frame is connected to the sliding block, and clearance holes are arranged on the corresponding sides of the first positioning frame and the second positioning frame, the height of the clearance hole to the upper surface of the bottom plate is higher than the height of the bottle mouth injection molded part, the second positioning frame is provided with a groove that matches the handle of the bottle mouth injection molded part, an upper mold is arranged above the first positioning frame and the second positioning frame, and a recess that matches the upper part of the bottle mouth injection molded part is arranged on the lower surface of the upper mold.

[0018] In the above scheme, the bottle mouth injection molded part is placed on the fixed block through the setting of the pushing structure, the mold clamping cylinder is started, the sliding block is pushed to clamp the bottle mouth injection molded part for easy clamping, and the start button is started. The upper mold is pressed down with the equipment head until the bottle mouth sealing film is fused to the bottle mouth injection molded part, and the seal is firm.

[0019] 2. The pushing structure includes a cylinder connecting plate and a mold-closing cylinder. Through the setting of the mold-closing cylinder, the mold-closing cylinder pushes the sliding block, thereby clamping the bottle mouth injection molded part, which is not easy to fall off. The sliding of the sliding block is controlled by the mold-closing cylinder. The fixed block is provided with a first guide hole, and the first positioning frame is provided with a first mounting hole. The guide column passes through the first guide hole to the first mounting hole. The section of the guide column between the fixed block and the first positioning frame is provided with a spring. Through the setting of the spring, after the upper mold is pressed down, the spring provides a rebound force to eject the bottle mouth injection molded part for easy demoulding. The guide column is a screw. Through the setting of the screw, the screw is a standard part and can be purchased directly without customization, which greatly reduces the production cost. The fixed block is provided with a protrusion, and the sliding block is provided with a notch that matches the protrusion, which is convenient for the sliding block and the fixed block to close the mold and is used to press the bottle mouth injection molded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a co-extrusion film sealing welding fixture;

[0021] Figure 2 A top view of a co-extrusion film sealing welding fixture;

[0022] Figure 3 It is a cross-sectional view of a co-extrusion film sealing welding fixture;

[0023] Figure 4 It is a structural schematic diagram of an upper mold of a co-extrusion film sealing welding jig;

[0024] Figure 5 It is a structural schematic diagram of a co-extrusion film sealing welding jig bottle mouth injection molding part;

[0025] Explanation of the accompanying drawings: 1. Base plate; 2. Fixed block; 3. Sliding block; 4. First positioning frame; 5. Second positioning frame; 6. Handle; 7. Groove; 8. Upper mold; 9. Cylinder connecting plate; 10. Clamping cylinder; 11. Piston rod; 12. First guide hole; 13. First mounting hole; 14. Spring; 15. Second guide hole; 16. Second mounting hole; 17. Screw; 18. Boss; 19. Notch. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 5 As shown, a co-extruded film sealing welding fixture of the utility model comprises a bottom plate 1, a lower die is arranged on the bottom plate 1, the lower die comprises a fixed block 2 and a sliding block 3 arranged in parallel, a protrusion 18 is arranged on the fixed block 2, and a notch 19 corresponding to the protrusion 18 is arranged on the sliding block 3, the fixed block 2 is fixedly connected to the bottom plate 1, a pushing structure for driving the sliding block 3 to slide horizontally is arranged on the bottom plate 1, and depressions are arranged on the corresponding sides of the fixed block 2 and the sliding block 3, and the two depressions are connected to form a bottle mouth injection A cavity adapted to the shape of the main body of the plastic part, a first positioning frame 4 is connected to the fixed block 2, and a second positioning frame 5 is connected to the sliding block 3. The first positioning frame 4 and the second positioning frame 5 are provided with clearance holes on the corresponding sides, and the height of the clearance holes to the upper surface of the bottom plate 1 is higher than the height of the bottle mouth injection molded part. The second positioning frame 5 is provided with a groove 7 adapted to the handle 6 of the bottle mouth injection molded part, and an upper mold 8 is arranged above the first positioning frame 4 and the second positioning frame 5, and the lower surface of the upper mold 8 is provided with a depression adapted to the upper part of the bottle mouth injection molded part.

[0028] The pushing structure includes a cylinder connecting plate 9 and a mold clamping cylinder 10. The cylinder connecting plate 9 is fixedly connected to the sliding block 3. The mold clamping cylinder 10 is located on the base plate 1. The piston rod 11 of the mold clamping cylinder 10 is fixedly connected to the cylinder connecting plate 9. The sliding of the sliding block 3 is controlled by the mold clamping cylinder 10.

[0029] A first guide hole 12 is provided on the fixed block 2, and a first mounting hole 13 is provided at the corresponding position of the first positioning frame 4 and the fixed block 2. The guide column passes through the first guide hole 12 to the first mounting hole 13. The guide column and the first positioning frame 4 are matched in an up and down sliding state. The guide column and the fixed block 2 are fixedly matched. A spring 14 is provided on the section of the guide column located between the fixed block 2 and the first positioning frame 4.

[0030] A second guide hole 15 is provided on the sliding block 3, and a second mounting hole 16 is provided at the corresponding position of the second positioning frame 5 and the sliding block 3. The guide column passes through the second guide hole 15 to the second mounting hole 16. The guide column and the second positioning frame 5 are matched in an up and down sliding state, and the guide column and the sliding block 3 are fixedly matched. A spring 14 is provided on the section of the guide column located between the sliding block 3 and the second positioning frame 5.

[0031] The guide column is a screw 17, and the first mounting hole 13 and the second mounting hole 16 are both threaded holes. The screw 17 is a standard part and can be purchased directly without customization, which greatly reduces the production cost.

[0032] Place the bottle mouth injection molded part on the fixed block 2 so that it is placed stably and will not fall. Start the mold clamping cylinder 10 to push the sliding block 3 to clamp the bottle mouth injection molded part. The upper surface of the bottle mouth injection molded part is lower than the upper surface of the second positioning frame 5. The handle 6 of the bottle mouth injection molded part is placed in the groove 7 to form a positioning. The machine first presses down the first positioning frame 4 and the second positioning frame 5 so that the lower surface of the first positioning frame 4 is against the fixed upper surface, and the second positioning frame 5 is against the upper surface of the sliding block 3. Then place the bottle mouth sealing film on the upper part of the bottle mouth injection molded part, start the start button, and the upper mold 8 is pressed down with the machine until the bottle mouth sealing film is fused to the bottle mouth injection molded part.

[0033] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" 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 utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A co-extruded film sealing welding fixture, characterized in that: The invention comprises a bottom plate (1), a lower mold is arranged on the bottom plate (1), the lower mold comprises a fixed block (2) and a sliding block (3) arranged in parallel, the fixed block (2) is fixedly connected to the bottom plate (1), a driving structure for driving the sliding block (3) to slide horizontally is arranged on the bottom plate (1), recesses are arranged on the corresponding sides of the fixed block (2) and the sliding block (3), the two recesses are connected to form a cavity that matches the shape of the main body of the bottle mouth injection molded part, the fixed block (2) is connected to a first positioning frame (4), The sliding block (3) is connected to a second positioning frame (5); corresponding sides of the first positioning frame (4) and the second positioning frame (5) are provided with clearance holes; the height of the clearance holes to the upper surface of the bottom plate (1) is higher than the height of the bottle mouth injection molded part; the second positioning frame (5) is provided with a groove (7) matched with the handle (6) of the bottle mouth injection molded part; an upper mold (8) is provided above the first positioning frame (4) and the second positioning frame (5); the lower surface of the upper mold (8) is provided with a depression matched with the upper part of the bottle mouth injection molded part.

2. A co-extruded film sealing welding jig as claimed in claim 1, characterized in that: The pushing structure comprises a cylinder connecting plate (9) and a mold clamping cylinder (10); the cylinder connecting plate (9) is fixedly connected to a sliding block (3); the mold clamping cylinder (10) is located on a base plate (1); a piston rod (11) of the mold clamping cylinder (10) is fixedly connected to the cylinder connecting plate (9); and the sliding of the sliding block (3) is controlled by the mold clamping cylinder (10).

3. A co-extruded film sealing welding jig as claimed in claim 1, characterized in that: The fixing block (2) is provided with a first guide hole (12), the first positioning frame (4) and the fixing block (2) are provided with a first mounting hole (13) at corresponding positions, the guide column passes through the first guide hole (12) and into the first mounting hole (13), the guide column and the first positioning frame (4) are matched in an up-and-down sliding manner, the guide column and the fixing block (2) are matched in a fixed manner, and a spring (14) is provided on the section of the guide column located between the fixing block (2) and the first positioning frame (4).

4. A co-extruded film sealing welding jig as claimed in claim 1, characterized in that: The sliding block (3) is provided with a second guide hole (15), the second positioning frame (5) and the sliding block (3) are provided with a second mounting hole (16) at corresponding positions, the guide column passes through the second guide hole (15) and the second mounting hole (16), the guide column and the second positioning frame (5) are matched in an up-and-down sliding manner, the guide column and the sliding block (3) are matched in a fixed manner, and a spring (14) is provided on the section of the guide column located between the sliding block (3) and the second positioning frame (5).

5. A co-extruded film sealing welding jig as claimed in claim 3, characterized in that: The guide column is a screw (17), and the first mounting hole (13) and the second mounting hole (16) are both threaded holes.

6. A co-extruded film sealing welding jig as claimed in claim 1, characterized in that: The fixed block (2) is provided with a protrusion (18), and the sliding block (3) is provided with a notch (19) corresponding to the protrusion (18).

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