Air suction device of plastic vacuum forming machine

Abstract

The utility model belongs to the technical field of plastic vacuum forming machines, and particularly relates to an air suction device of a plastic vacuum forming machine, which comprises a conveying device, an annularly distributed base is fixedly connected onto a conveying belt of the conveying device, a separation layer is fixedly connected inside the base, a workpiece disc is mounted above the base, and a suction nozzle is mounted on the workpiece disc. A cavity is formed in the workpiece disc, and a forming cavity corresponding to a product in shape is formed in the top of the cavity. The workpiece disc is driven by the conveying device to carry out reciprocating conveying, the workpiece disc is placed in the base, the air suction pump is operated, air suction is carried out through the air suction hole, the upper connecting opening, the lower connecting opening, the air suction pipe and the rotating connector in sequence, plastic uptake is carried out on workpieces in the workpiece disc, and the corresponding workpiece disc is replaced according to different shapes of products. And the plastic uptake requirements of various workpieces can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum forming machines, in particular to an air suction device of a vacuum forming machine. Background Art

[0002] The blister machine, also known as the thermoplastic forming machine, is a machine that blister-forms heated and plasticized thermoplastic plastic coils such as PVC, PE, PP, PET, HIPS, etc. into packaging and decoration boxes, frames and other products in various shapes. It uses the vacuum suction force generated by a vacuum pump to blister-form the heated and softened thermoplastic plastic sheets into vacuum covers, blister trays, bubble shells, etc. in various shapes through molds. Therefore, the blister machine at least includes a mold and a suction device that can suck air into the inner cavity of the mold.

[0003] The existing Chinese patent with announcement number CN219055299U discloses an air suction device for a blister machine, wherein a transmission component is installed on the upper part of the conveyor, and an air suction component is installed at the position of the upper part of the conveyor corresponding to the transmission component. The transmission component includes a transmission sprocket rotatably installed at the front and rear ends of the conveyor, and a matching transmission motor is installed at the position of the transmission sprocket corresponding to the inner side of the conveyor. A transmission chain is connected between the outsides of the two transmission sprockets, and connecting frames are equidistantly installed on the outer walls of the two transmission chains. A fixed seat is fixedly installed between every two of the connecting frames, and a workpiece disk is installed on the upper part of the fixed seat, and the workpiece disk is provided with an air suction mechanism.

[0004] In view of the above and existing related technologies, the inventors believe that the following defects often exist: the device is used for workpiece trays of a single shape, and the workpiece trays cannot be replaced according to different products. It has a limited applicability and needs to be improved. Therefore, a suction device for a vacuum forming machine is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model provides an air suction device for a vacuum forming machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the suction device of the vacuum forming machine described in the utility model comprises a conveying device, a base distributed in an annular shape is fixedly connected to the conveying belt of the conveying device, a partition layer is fixedly connected to the inside of the base, a workpiece disc is installed above the base, a cavity is opened inside the workpiece disc, a molding cavity corresponding to the shape of the product is opened on the top of the cavity, a suction hole is opened at the bottom of the molding cavity, a suction component is installed on the base, the suction component comprises a suction pipe, a rotating joint, an upper connecting port and a lower connecting port, the suction pipe One end of the suction pipe is fixedly connected to the base, and the other end of the suction pipe is fixedly connected to the rotary joint, the bottom end of the rotary joint is connected to the suction pump through a pipeline, the upper connecting port is arranged at the bottom of the workpiece tray, and the lower connecting port is arranged at the surface of the partition layer. When in use, the workpiece tray is driven to be reciprocated by the conveying device, the workpiece tray is placed in the base, and the suction pump is operated to suck air through the suction hole, the upper connecting port, the lower connecting port, the suction pipe and the rotary joint in turn, and the workpiece in the workpiece tray is vacuum-formed. According to the different shapes of the products, the corresponding workpiece tray can be replaced to meet the vacuum-formed needs of various workpieces.

[0007] Preferably, a plug connector is fixedly connected to the top of the lower connecting port. When the workpiece disk is placed in the base, the upper connecting port is aligned with the lower connecting port, and the plug connector is inserted into the upper connecting port. The sealing ring is used to improve the sealing performance to prevent air leakage at the connection.

[0008] Preferably, a sealing ring is fixedly connected to the surface of the plug connector.

[0009] Preferably, the workpiece discs are provided in multiple types according to different shapes of the molding cavity.

[0010] Preferably, the upper connecting port is configured to be convex.

[0011] Preferably, a fixing component is installed on the base and the workpiece disk, and the fixing component includes a plurality of slide grooves, and the slide grooves are opened on both sides of the workpiece disk. The busy interior of the slide groove is slidably connected with an L-shaped clamping plate. When the workpiece disk is placed on the base, the clamping plate is inserted into the interior of the clamping groove by the elastic force of the spring, thereby fixing the workpiece disk in the base to prevent the workpiece disk from falling off, and the clamping plate is pressed inward to exit the clamping groove, so that the workpiece disk can be quickly taken out, which is convenient for loading and unloading.

[0012] Preferably, a spring is fixedly connected to the opposite side of the clamping plate and the sliding slot.

[0013] Preferably, the fixing assembly further comprises a plurality of slots, and the slots are provided on both sides of the base.

[0014] The utility model is beneficial in that:

[0015] 1. The utility model drives the workpiece tray to carry out reciprocating conveying through the conveying device, places the workpiece tray in the base, operates the suction pump, and sucks air through the suction hole, the upper connecting port, the lower connecting port, the suction pipe and the rotary joint in sequence to carry out vacuum forming on the workpieces in the workpiece tray. According to the different shapes of the products, the corresponding workpiece tray can be replaced to meet the vacuum forming needs of various workpieces.

[0016] 2. The utility model places the workpiece disc on the base, and the clamping plate is inserted into the inside of the clamping slot by the elastic force of the spring, thereby fixing the workpiece disc in the base to prevent the workpiece disc from falling off. When the clamping plate is pressed inwards to exit the clamping slot, the workpiece disc can be quickly taken out, which is convenient for loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Bottom view of

[0020] Figure 3 This is a schematic diagram of the structure of the air intake assembly of the utility model;

[0021] Figure 4 This is an exploded view of the base and workpiece tray of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the fixing component of the utility model.

[0023] In the figure: 1. conveying device; 2. base; 3. partition layer; 4. suction component; 41. suction pipe; 42. rotary joint; 43. upper connection port; 44. lower connection port; 45. plug connector; 46. sealing ring; 5. suction pump; 6. workpiece plate; 7. cavity; 8. molding cavity; 9. fixing component; 91. slide groove; 92. clamping plate; 93. spring; 94. clamping groove; 10. suction hole. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1

[0026] See also Figure 1-4 As shown, an air suction device of a blister forming machine comprises a conveying device 1, a base 2 distributed in an annular shape is fixedly connected to the conveying belt of the conveying device 1, a partition layer 3 is fixedly connected inside the base 2, a workpiece tray 6 is installed above the base 2, a cavity 7 is opened inside the workpiece tray 6, a molding cavity 8 corresponding to the shape of the product is opened on the top of the cavity 7, an air suction hole 10 is opened at the bottom of the molding cavity 8, an air suction component 4 is installed on the base 2, the air suction component 4 comprises an air suction pipe 41, a rotary joint 42, an upper connecting port 43 and a lower connecting port 44, one end of the air suction pipe 41 is fixedly connected to the base 2, and the other end of the air suction pipe 41 is fixedly connected to the base 2. It is fixedly connected to the rotary joint 42, and the bottom end of the rotary joint 42 is connected to the suction pump 5 through a pipeline. The upper connecting port 43 is opened at the bottom of the workpiece tray 6, and the lower connecting port 44 is opened on the surface of the partition layer 3. When in use, the workpiece tray 6 is driven by the conveying device 1 to carry out reciprocating conveying, and the workpiece tray 6 is placed in the base 2. The suction pump 5 is operated to suck air through the suction hole 10, the upper connecting port 43, the lower connecting port 44, the suction pipe 41 and the rotary joint 42 in turn to perform vacuum forming on the workpiece in the workpiece tray 6, and according to the different shapes of the products, the corresponding workpiece tray 6 is replaced to meet the vacuum forming needs of various workpieces.

[0027] A plug connector 45 is fixedly connected to the top of the lower connection port 44. When the workpiece disk 6 is placed in the base 2, the upper connection port 43 is aligned with the lower connection port 44, and the plug connector 45 is inserted into the upper connection port 43. The sealing ring 46 is used to improve the sealing performance to prevent air leakage at the connection.

[0028] A sealing ring 46 is fixedly connected to the surface of the plug connector 45 .

[0029] There are various types of workpiece discs 6 according to the different shapes of the molding cavity 8 .

[0030] The upper connection port 43 is designed to be convex.

[0031] Embodiment 2

[0032] For comparison with Example 1, please refer to Figure 5As shown, the utility model provides another embodiment, a fixing component 9 is installed on the base 2 and the workpiece disk 6, and the fixing component 9 includes a plurality of slide grooves 91, and the slide grooves 91 are opened on both sides of the workpiece disk 6. The busy interior of the slide groove 91 is slidably connected with an L-shaped clamping plate 92. When the workpiece disk 6 is placed on the base 2, the clamping plate 92 is inserted into the interior of the clamping groove 94 through the elastic force of the spring 93, and then the workpiece disk 6 is fixed in the base 2 to prevent the workpiece disk 6 from falling off, and when the clamping plate 92 is pressed inward to exit the clamping groove 94, the workpiece disk 6 can be quickly taken out, which is convenient for loading and unloading.

[0033] A spring 93 is fixedly connected to one side of the clamping plate 92 opposite to the sliding slot 91 .

[0034] The fixing assembly 9 further includes a plurality of slots 94 , which are disposed on both sides of the base 2 .

[0035] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and according to the actual situation, a suitable controller should be selected to be electrically connected to the conveying device 1 and the suction pump 5 to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0036] Working principle: when in use, the workpiece tray 6 is driven by the conveying device 1 to carry out reciprocating conveying, the workpiece tray 6 is placed in the base 2, and the suction pump 5 is operated to suction air through the suction hole 10, the upper connecting port 43, the lower connecting port 44, the suction pipe 41 and the rotary joint 42 in turn to perform vacuum forming on the workpiece in the workpiece tray 6, and according to the different shapes of the products, the corresponding workpiece tray 6 is replaced to meet the vacuum forming needs of various workpieces.

[0037] When the workpiece disk 6 is placed in the base 2, the upper connection port 43 is aligned with the lower connection port 44, and the plug connector 45 is inserted into the upper connection port 43, and the sealing ring 46 is used to improve the sealing performance to prevent air leakage at the connection.

[0038] When the workpiece disk 6 is placed on the base 2, the clamping plate 92 is inserted into the inside of the clamping slot 94 through the elastic force of the spring 93, thereby fixing the workpiece disk 6 in the base 2 to prevent the workpiece disk 6 from falling off, and the clamping plate 92 is pressed inward to exit the clamping slot 94, so that the workpiece disk 6 can be quickly taken out, which is convenient for loading and unloading.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A vacuum device for a vacuum forming machine, comprising a conveying device (1), characterized in that: The conveyor belt of the conveying device (1) is fixedly connected to a base (2) distributed in an annular shape, the interior of the base (2) is fixedly connected to a partition layer (3), a workpiece tray (6) is installed above the base (2), a cavity (7) is provided inside the workpiece tray (6), a molding cavity (8) corresponding to the shape of the product is provided at the top of the cavity (7), an air suction hole (10) is provided at the bottom of the molding cavity (8), an air suction component (4) is installed on the base (2), and the air suction hole (10) is provided at the bottom of the molding cavity (8). The air assembly (4) comprises an air suction pipe (41), a rotary joint (42), an upper connection port (43) and a lower connection port (44); one end of the air suction pipe (41) is fixedly connected to the base (2), and the other end of the air suction pipe (41) is fixedly connected to the rotary joint (42); the bottom end of the rotary joint (42) is connected to an air suction pump (5) via a pipeline; the upper connection port (43) is opened at the bottom of the workpiece disk (6), and the lower connection port (44) is opened on the surface of the partition layer (3).

2. The suction device of the blister machine according to claim 1, characterized in that: A plug connector (45) is fixedly connected to the top of the lower connection port (44).

3. The suction device of the blister machine according to claim 2, characterized in that: A sealing ring (46) is fixedly connected to the surface of the plug connector (45).

4. The suction device of the blister machine according to claim 1, characterized in that: The workpiece disc (6) is provided in various forms according to the different shapes of the molding cavity (8).

5. The suction device of the blister machine according to claim 1, characterized in that: The upper connection port (43) is configured to be convex.

6. The suction device of the blister machine according to claim 1, characterized in that: A fixing assembly (9) is installed on the base (2) and the workpiece disk (6), and the fixing assembly (9) includes a plurality of slide grooves (91). The slide grooves (91) are arranged on both sides of the workpiece disk (6), and an L-shaped clamping plate (92) is slidably connected inside the slide grooves (91).

7. The suction device of the blister machine according to claim 6, characterized in that: A spring (93) is fixedly connected to the opposite side of the clamping plate (92) and the sliding groove (91).

8. The suction device of the blister machine according to claim 6, characterized in that: The fixing assembly (9) further comprises a plurality of card slots (94), wherein the card slots (94) are arranged on both sides of the base (2).

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