Air suction device of plastic vacuum forming machine

Abstract

The utility model relates to the technical field of plastic vacuum forming machines, in particular to an air suction device of a plastic vacuum forming machine, which comprises a base and a placing box, a flow dividing pipe is arranged in the base, a second through groove is arranged at the bottom end of the inner wall of the placing box, a connecting block is fixedly connected to the bottom end of the placing box, and a connecting groove is arranged at the top end of the base. The connecting blocks are slidably connected with the connecting grooves, an upper limiting shell is arranged on the outer wall of the containing box, a sliding groove is formed in the upper limiting shell, a limiting rack is slidably connected into the sliding groove, the limiting rack is slidably connected with a lower limiting shell, and a limiting groove connected with the limiting rack is formed in the lower limiting shell. According to the utility model, the connection between the base and the placing box is firmer, and the gap between the placing box and the base is greatly reduced through the connecting block and the connecting groove, so that the connection mode is easier, the connection is tighter, the gap is greatly reduced, and the air suction effect is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to blister machine technical field especially, relates to a kind of suction device of blister machine. BACKGROUND

[0002] Blister machine is a kind of equipment mainly used for plastic processing, it is softened by heating plastic sheet, then the softened plastic sheet is adsorbed on the mold surface using the vacuum suction force generated by vacuum pump, so as to form various shapes of plastic products, and is widely used in food, electronics, toys, stationery and many other industries, such as packaging and some product shell forming fields.

[0003] The suction device of the blister machine with the application number CN202223447066.4 includes a base, a vacuum pump is fixedly connected inside the base, an air suction pipe is fixedly connected to the input end of the vacuum pump, a shunt pipe is fixedly connected to the outer wall of the air suction pipe, the outer wall of the shunt pipe is fixedly connected to the inner wall of a first through groove, and the first through groove is formed in the upper surface of the base.

[0004] The above patent document has the beneficial effect of solving the problem that sucking air from one position can cause the plastic material at that position to break, and if the speed of air suction is too fast, it can cause uneven heating of the plastic. However, in the above device, when the placement box and the base are installed, the connection is achieved only through the sliding connection of the fixed rod and the guide groove, which is a relatively simple connection method, and no limiting structure is provided, making it easy for the placement box to be blown up. The gap between the placement box and the base is large, which can easily reduce the effectiveness of air suction. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem that in the above-mentioned device, the placement box and the base are installed only through the sliding connection of the fixed rod and the guide groove, which is a relatively simple connection method, and no limiting structure is provided, making it easy for the placement box to be blown up. The gap between the placement box and the base is large, which can easily reduce the effectiveness of air suction. To solve this problem, a suction device for a blister machine is proposed.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A suction device for a blister machine includes a base and a placement box. The inside of the base is provided with a shunt pipe. The inner wall of the placement box is provided with a second through groove at the bottom end. The bottom end of the placement box is fixedly connected with a connecting block. The top end of the base is provided with a connecting groove. The connecting block and the connecting groove are in sliding connection. The outer wall of the placement box is provided with an upper limiting shell. The inside of the upper limiting shell is provided with a sliding groove. The sliding groove is in sliding connection with a limiting rack. The limiting rack is in sliding connection with a lower limiting shell. The inside of the lower limiting shell is provided with a limiting groove connected with the limiting rack.

[0008] Preferably, an extension pipe is arranged on the top end of the shunt pipe, and an adapting groove is arranged at the bottom end of the inner wall of the second through groove, and the extension pipe is in sliding connection with the adapting groove.

[0009] Preferably, a rubber pad for enhancing sealing is arranged on the inner wall of the connecting groove.

[0010] Preferably, a rectangular groove is arranged on the inner wall of the sliding groove, a gear is rotatably connected to the inner wall of the rectangular groove, and the gear is in meshing connection with the limiting rack.

[0011] Preferably, a knob is rotatably connected to the outer wall of the upper limiting shell, and the knob penetrates through the outer wall of the upper limiting shell and is fixedly connected with the gear.

[0012] Preferably, a sliding opening is arranged on the outer wall of the end of the limiting rack away from the tooth, one end of a spring is fixedly connected to the inner wall of the sliding opening, a limiting block in trapezoidal shape is in sliding connection with the inner wall of the sliding opening, and the other end of the spring is fixedly connected with the outer wall of the limiting block.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] In use, the upper limiting shell, the lower limiting shell, the limiting rack, the limiting groove and the limiting block are matched, so that the connection between the base and the placing box is more firm, the gap between the placing box and the base is greatly reduced through the connecting block and the connecting groove, the connection is easier and more compact, the gap is greatly reduced, and the air suction effect is greatly increased. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the air suction device of the plastic suction machine;

[0016] Figure 2 It is a half-cut three-dimensional structure schematic diagram of the air suction device of the plastic suction machine;

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the inside of the upper limiting shell of the air suction device of the plastic suction machine;

[0018] Figure 4 It is a three-dimensional structure schematic diagram of the inside of the lower limiting shell of the air suction device of the plastic suction machine.

[0019] In the figure: 1, base; 2, placing box; 3, shunt pipe; 4, second through slot; 5, connecting block; 6, connecting groove; 7, upper limit shell; 8, sliding groove; 9, limit rack; 10, lower limit shell; 11, limit slot; 12, extension pipe; 13, adaptive groove; 14, rubber pad; 15, rectangular groove; 16, gear; 17, knob; 18, sliding port; 19, spring; 20, limit block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Referring to Figures 1-4 A suction device of a plastic suction machine, comprising a base 1 and a placing box 2, the inside of the base 1 is provided with a shunt pipe 3, the inner wall bottom end of the placing box 2 is provided with a second through slot 4, the bottom end of the placing box 2 is fixedly connected with a connecting block 5, the top end of the base 1 is provided with a connecting groove 6, the connecting block 5 and the connecting groove 6 are slidingly connected, the outer wall of the placing box 2 is provided with an upper limit shell 7, the inside of the upper limit shell 7 is provided with a sliding groove 8, the sliding groove 8 is slidingly connected with a limit rack 9, the limit rack 9 is slidingly connected with a lower limit shell 10, the inside of the lower limit shell 10 is provided with a limit slot 11 connected with the limit rack 9.

[0022] It should be noted that the limit rack 9 and the gear 16 are prior art, and the specific type and size need to be selected and determined according to the actual size of the device, and the specific selection calculation method adopts the prior art in the art, so it is not described in detail.

[0023] Further, the top end of the shunt pipe 3 is provided with an extension pipe 12, the inner wall bottom end of the second through slot 4 is provided with an adaptive groove 13, and the extension pipe 12 and the adaptive groove 13 are slidingly connected.

[0024] The connection between the shunt pipe 3 and the second through slot 4 is more closely connected through the connection of the extension pipe 12 and the adaptive groove 13, and when the suction and exhaust treatment is performed, the probability of gas leakage between the base 1 and the placing box 2 is greatly reduced.

[0025] Further, the inner wall of the connecting groove 6 is provided with a rubber pad 14 for enhancing the sealing performance.

[0026] The rubber pad 14 is arranged in a U-shaped manner, the connecting block 5 and the connecting groove 6 are both arranged in a mouth-shaped manner, and the shape and size are mutually adapted, and the connection between the connecting block 5 and the connecting groove 6 is more closely connected through the rubber pad 14.

[0027] Further, a rectangular slot 15 is formed on the inner wall of the chute 8, and a gear 16 is rotatably connected to the inner wall of the rectangular slot 15, and the gear 16 is meshed with the limiting rack 9.

[0028] The limiting slot 11 is in the shape of a Chinese character "N", and the shape and size of the limiting rack 9 are matched with the shape and size of the inner wall of the limiting slot 11.

[0029] Further, a knob 17 is rotatably connected to the outer wall of the upper limiting shell 7, and the knob 17 penetrates through the outer wall of the upper limiting shell 7 and is fixedly connected with the gear 16.

[0030] The knob 17 can drive the gear 16 to rotate, and in turn, the limiting rack 9 can move up and down by manually rotating the knob 17.

[0031] Further, a slide opening 18 is formed on the outer wall of the end of the limiting rack 9 away from the gear, one end of a spring 19 is fixedly connected to the inner wall of the slide opening 18, a limiting block 20 in the shape of a trapezoid is slidably connected to the inner wall of the slide opening 18, and the other end of the spring 19 is fixedly connected to the outer wall of the limiting block 20.

[0032] The outer wall of the limiting block 20 is provided with an inclined angle on the upper half, and the limiting block 20, the slide opening 18 and the limiting slot 11 are matched in size, so that when the limiting rack 9 enters the lowest end of the limiting slot 11, the limiting block 20 can be pushed out of the slide opening 18 by the spring 19, thereby connecting the base 1 and the placing box 2.

[0033] Working principle: when installing the device, first, align the extension pipe 12 with the adaptive slot 13, and insert the connecting block 5 into the connecting slot 6, then manually rotate the knob 17, the knob 17 can drive the gear 16 to rotate, and in turn, the limiting rack 9 can move up and down, the limiting rack 9 enters the limiting slot 11, when the limiting rack 9 enters the lowest end of the limiting slot 11, the limiting block 20 can be pushed out of the slide opening 18 by the spring 19, thereby connecting the base 1 and the placing box 2, when separating, rotate the knob 17 in the opposite direction, the knob 17 drives the limiting rack 9 to move upwards, under the extrusion of the limiting slot 11, the limiting block 20 enters the slide opening 18, thereby making the connection easier and more tightly, greatly reducing the gap and greatly increasing the suction effect.

[0034] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A suction device of a blister machine, comprising a base (1) and a placing box (2), characterized in that, The inside of the base (1) is provided with a shunt pipe (3), the inner wall bottom end of the placing box (2) is provided with a second through slot (4), the bottom end of the placing box (2) is fixedly connected with a connecting block (5), the top end of the base (1) is provided with a connecting slot (6), the connecting block (5) and the connecting slot (6) are slidably connected, the outer wall of the placing box (2) is provided with an upper limiting shell (7), the inside of the upper limiting shell (7) is provided with a sliding groove (8), the sliding groove (8) is slidably connected with a limiting rack (9), the limiting rack (9) is slidably connected with a lower limiting shell (10), the inside of the lower limiting shell (10) is provided with a limiting groove (11) connected with the limiting rack (9).

2. The suction device of a blister machine according to claim 1, wherein The top end of the shunt pipe (3) is provided with an extension pipe (12), the inner wall bottom end of the second through slot (4) is provided with an adaptive slot (13), and the extension pipe (12) and the adaptive slot (13) are slidably connected.

3. The suction device of the blister machine according to claim 1, wherein, The inner wall of the connecting slot (6) is provided with a rubber pad (14) for enhancing the sealing performance.

4. The suction device of the blister machine according to claim 1, wherein, The inner wall of the sliding groove (8) is provided with a rectangular groove (15), the inner wall of the rectangular groove (15) is rotatably connected with a gear (16), and the gear (16) and the limiting rack (9) are meshed with each other.

5. The suction device of a blister machine according to claim 4, wherein The outer wall of the upper limiting shell (7) is rotatably connected with a knob (17), the knob (17) penetrates through the outer wall of the upper limiting shell (7) and is fixedly connected with the gear (16).

6. The suction device of a blister machine according to claim 1, wherein The outer wall of the end of the limiting rack (9) away from the tooth is provided with a sliding opening (18), one end of a spring (19) is fixedly connected with the inner wall of the sliding opening (18), a limiting block (20) in trapezoidal shape is slidably connected with the inner wall of the sliding opening (18), and the other end of the spring (19) is fixedly connected with the outer wall of the limiting block (20).

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