Automatic packaging system for injection and blowing bottles

Abstract

The utility model discloses an automatic packaging system for injection blowing bottles, which comprises blow molding equipment, a conveying line, a metal detector, a weighing detector and a plastic bottle packer, one end of the conveying line is connected with the blow molding equipment, and the plastic bottle packer is positioned at the other end of the conveying line. The metal detection machine and the weighing detection machine are located between the blow molding equipment and the plastic bottle packing machine and are penetrated by the conveying line, the weighing detection machine comprises a weighing table, a weight scale is embedded in the center of the upper surface of the weighing table, a rotating rod is further rotationally installed on the upper surface of the weighing table, and the rotating rod is connected with the conveying line. The bottom end of the rotating rod is connected with the weighing platform through a torsion spring; according to the plastic bottle weighing device, impurities on the surface of the weighing scale are cleaned before and after the plastic bottles are weighed, the influence of external dust or impurities on the weighing result of the plastic bottles is eliminated, the accuracy of the detection result is ensured, the situation that qualified products are determined as unqualified products due to detection errors is avoided, and the qualified rate of the products is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding bottle production, in particular to an automatic packaging system for injection-blow molding bottles. Background Art

[0002] Injection blow bottles are also called blow-molded bottles. Blow-molded bottles are a kind of plastic processed by blow molding. Blow molding is to place the tubular plastic preform obtained by extrusion or injection molding of thermoplastic resin in a split mold while it is hot (or heated to a softened state). After closing the mold, compressed air is immediately introduced into the preform to inflate the plastic preform and make it stick to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] Blow molding generally includes melting the raw materials, blow molding the raw materials through the blow molding mold, cooling the products after blow molding, collecting, testing and weighing the cooled products, removing plastic bottles that do not meet production requirements during the testing process, and centrally packaging and packaging qualified products.

[0004] However, during the weighing process of plastic bottles, indoor dust falls on the surface of the weighing instrument and accumulates, resulting in a certain error in the weight of the plastic bottles. As a result, some products are mistakenly identified as defective due to weighing errors, resulting in a decrease in product qualification rate. Therefore, it does not meet the existing needs. In response to this, we proposed an automatic packaging system for injection-blow bottles. Utility Model Content

[0005] The purpose of the present utility model is to provide an automatic packaging system for injection-blow bottles to solve the problem raised in the above-mentioned background technology that during the weighing process of plastic bottles, indoor dust falls on the surface of the weighing instrument and accumulates, resulting in a certain error in the weight of the plastic bottles, causing some products to be mistakenly identified as defective products due to weighing errors, resulting in a decrease in the product qualification rate and other problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic packaging system for injection-blow bottles, comprising a blow molding device, a conveyor line, a metal detector, a weighing detection machine and a plastic bottle baler, wherein one end of the conveyor line is connected to the blow molding device, and the plastic bottle baler is located at the other end of the conveyor line, the metal detector and the weighing detection machine are located between the blow molding device and the plastic bottle baler and are passed through the middle by the conveyor line, the weighing detection machine comprises a weighing platform, a weight scale is embedded in the center of the upper surface of the weighing platform, a rotating rod is also rotatably mounted on the upper surface of the weighing platform, the bottom end of the rotating rod is connected to the weighing platform by a torsion spring, a rotating plate is fixed to the outer side of the bottom end of the rotating rod, a cleaning strip is bonded to the bottom surface of the rotating plate, a fixed plate is fixed to the top of the rotating rod, a contact plate is fixed to one end of the fixed plate, a rotating support plate is provided above the contact plate, a lifting electric telescopic rod is fixed below one end of the rotating support plate, the bottom end of the lifting electric telescopic rod is fixed to the weighing platform, and a plastic bottle clamping assembly is fixed to the bottom of the other end of the rotating support plate.

[0007] Preferably, a micro motor is fixed inside the top end of the lifting electric telescopic rod, and the model of the micro motor is TBM2G.

[0008] Preferably, the output shaft end of the micro motor is flush with the upper end surface of the lifting electric telescopic rod, and the output shaft of the micro motor is fixed to the bottom surface of one end of the rotating support plate.

[0009] Preferably, the plastic bottle clamping assembly includes a clamping electric telescopic rod, the top of the clamping electric telescopic rod is fixed to the bottom surface of one end of the rotating support plate, the bottom end of the clamping electric telescopic rod is fixed with a lifting plate, and electromagnetic retraction rods are slidably inserted around the lifting plate.

[0010] Preferably, a square electromagnet is provided at the inner center of the lifting plate, a reset spring is provided between the square electromagnet and the electromagnetic contraction rod, the square electromagnet and the electromagnetic contraction rod are electromagnetically connected, and the magnetic adsorption force of the square electromagnet on the electromagnetic contraction rod is greater than the elastic force of the reset spring.

[0011] Preferably, a connecting plate is fixed to the outer end of the electromagnetic retraction rod, a clamping block is fixed to the inner side of the bottom end of the connecting plate, and one end surface of the clamping block is provided with an inwardly concave arc surface.

[0012] The utility model cleans impurities on the surface of the weight scale before and after weighing the plastic bottles, eliminates the influence of external dust or impurities on the weighing results of the plastic bottles, ensures the accuracy of the detection results, avoids qualified products from being determined as unqualified products due to detection errors, and ensures the qualified rate of products; the utility model installs a rear supporting block at the bottom end of the connecting plate, and the end face of the supporting block is an inwardly concave arc surface, thereby ensuring that the clamped plastic bottle will not fall midway, and at the same time ensuring that the axis of the plastic bottle coincides with the axis of the clamping electric telescopic rod, ensuring that the plastic bottle is placed in the middle of the weight scale after being weighed, thereby ensuring the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a structural diagram of the weighing detection machine of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the contact plate of the utility model;

[0016] Figure 4 This is a structural diagram of the plastic bottle clamping assembly of the utility model. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] like Figure 1 As shown, the utility model provides an automatic packaging system for injection blow bottles, which includes a blow molding device 1, a conveyor line 2, a metal detector 3, a weighing detector 4 and a plastic bottle baler 5. One end of the conveyor line 2 is connected to the blow molding device 1, and the plastic bottle baler 5 is located at the other end of the conveyor line 2. The metal detector 3 and the weighing detector 4 are located between the blow molding device 1 and the plastic bottle baler 5 and are passed through the middle by the conveyor line 2.

[0019] like Figure 2 and Figure 3As shown, the weighing detection machine 4 includes a weighing platform 41, a weight scale 42 is embedded in the center of the upper surface of the weighing platform 41, and a rotating rod 45 is rotatably installed on the upper surface of the weighing platform 41. The bottom end of the rotating rod 45 is connected to the weighing platform 41 by a torsion spring. A rotating plate 43 is fixed to the outer side of the bottom end of the rotating rod 45, and a cleaning strip 44 is adhered to the bottom surface of the rotating plate 43. A fixing plate 46 is fixed to the top of the rotating rod 45, and a contact plate 47 is fixed to one end of the fixing plate 46. The contact plate 47 is arc-shaped and has an inclined surface on the upper end surface. The inclined surface has an inclination angle of forty-five degrees. A rotating support plate 49 is provided above the contact plate 47, and a lifting electric telescopic rod 48 is fixed below one end of the rotating support plate 49. The bottom end of the lifting electric telescopic rod 48 is fixed to the weighing platform 41, and a plastic bottle clamping assembly 410 is fixed to the bottom of the other end of the rotating support plate 49. The plastic bottles to be weighed and weighed are transferred by the rotating support plate 49 and the plastic bottle clamping assembly 410, and the lifting and placement of the plastic bottles are controlled by the lifting electric telescopic rod 48. At the same time, the surface of the weight weighing scale 42 is cleaned by the cleaning strip 44 on the bottom of the rotating plate 43.

[0020] Furthermore, a micro motor is fixed inside the top of the lifting electric telescopic rod 48. The model of the micro motor is TBM2G. The output shaft end of the micro motor is flush with the upper end face of the lifting electric telescopic rod 48. The output shaft of the micro motor is fixed to the bottom face of one end of the rotating support plate 49. The rotating support plate 49 is controlled by the micro motor to rotate around the axis of the lifting electric telescopic rod 48, thereby realizing the transfer of the plastic bottle by the rotating support plate 49 and the plastic bottle clamping assembly 410.

[0021] like Figure 4 As shown, the plastic bottle clamping assembly 410 includes a clamping electric telescopic rod 4101, the top of the clamping electric telescopic rod 4101 is fixed to the bottom surface of one end of the rotating support plate 49, and the bottom end of the clamping electric telescopic rod 4101 is fixed with a lifting plate 4102, and electromagnetic retraction rods 4103 are slidably inserted around the lifting plate 4102. A square electromagnet is provided at the inner center of the lifting plate 4102, and a reset spring is provided between the square electromagnet and the electromagnetic retraction rod 4103. The square electromagnet and the electromagnetic retraction rod 4103 are electromagnetically connected, and the magnetic adsorption force of the square electromagnet on the electromagnetic retraction rod 4103 is greater than the elastic force of the reset spring. The position of the electromagnetic retraction rod 4103 is controlled by the square electromagnet to realize the extension or retraction of the electromagnetic retraction rod 4103 from the side of the lifting plate 4102.

[0022] A connecting plate 4104 is fixed to the outer end of the electromagnetic retracting rod 4103, and a clamping block 4105 is fixed to the inner side of the bottom end of the connecting plate 4104. One end face of the clamping block 4105 is provided with an inwardly concave arc surface. The bottle mouth of the plastic bottle is clamped by four clamping blocks 4105 with inwardly concave arc surfaces to ensure that the plastic bottle will not fall during the transfer process, and at the same time ensure that the axis of the plastic bottle coincides with the axis of the clamping electric telescopic rod 4101.

[0023] In summary, the working principle of the automatic packaging system for injection-blow bottles provided by the present invention is as follows: first, the raw materials are blow-molded and cooled and shaped by the blow molding equipment 1. After the products are cooled and shaped, they are transported through the conveyor line 2 and pass through the metal detector 3 and the weighing detector 4, so that the products finally reach the plastic bottle packaging machine 5. After the products enter the inner side of the metal detector 3, the metal detector 3 performs metal composition detection on the products. If the metal content of the products exceeds the standard, the products are removed from the conveyor line 2. If the metal detection of the products meets the standard, the products are further transported through the conveyor line 2 to the weighing detector 4. When the product reaches the weighing platform 41 through the conveyor line 2, the micro motor inside the top of the lifting electric telescopic rod 48 is powered on and started, and rotates counterclockwise through the rotating support plate 49, so that the rotating support plate 49 moves the plastic bottle clamping assembly 410 to above the product. At this time, the clamping electric telescopic rod 4101 is energized and drives the lifting plate 4102 to move downward, so that the lifting plate 4102 drives the four clamping blocks 4105 to descend to the vicinity of the product bottle mouth, and then the square electromagnet inside the lifting plate 4102 is energized to magnetically adsorb the electromagnetic retraction rod 4103, so that the four clamping blocks 4105 approach each other and clamp the product bottle mouth.

[0024] After the product is clamped by the four clamping blocks 4105, the lifting plate 4102, the clamping block 4105 and the clamped product move up, and then the micro motor is energized and drives the rotating support plate 49 to rotate clockwise, moving the product to the top of the weight scale 42. At this time, the lifting electric telescopic rod 48 drives the rotating support plate 49 and the clamped product to move downward. During this process, the rotating support plate 49 contacts and squeezes the contact plate 47, so that the contact plate 47 drives the fixed plate 46 to rotate clockwise around the axis of the rotating rod 45. When the rotating rod 45 rotates, the torsion spring is twisted and compressed. At the same time, the rotating plate 43 drives the cleaning strip 44 to slide against the surface of the weighing platform 41 and the weight scale 42, cleaning the impurities and dust on the surface of the weight scale 42 until the bottom of the product contacts the surface of the weight scale 42.

[0025] Next, the power supply of the square electromagnet inside the lifting plate 4102 is disconnected, and the electromagnetic retraction rod 4103, the connecting plate 4104 and the clamping block 4105 of the reset spring are reset, so that the product falls on the surface of the weight scale 42 and is weighed. After weighing, the weight of the product meets the requirements. If it does not meet the requirements, the product will be directly removed from the surface of the weight scale 42. If the product meets the requirements, the plastic bottle clamping assembly 410 will clamp the product again, and the lifting electric telescopic rod 48 and the rotating support plate 49 will drive the product to move up. After moving up, the micro motor will continue to be energized and drive the rotating support plate 49 to rotate clockwise, transferring the product from the weighing platform 41 to the conveyor line 2, and the product will be transported to the plastic bottle baler 5 through the conveyor line 2. The plastic bottle baler 5 will collect the product and pack and package it. Before and after weighing the plastic bottles, the impurities on the surface of the weight scale are cleaned to eliminate the influence of external dust or impurities on the weighing results of the plastic bottles, thereby ensuring the accuracy of the test results.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. An automatic packaging system for injection blow molding bottles, comprising a blow molding machine, a conveyor line, a metal detector, a weighing detector, and a plastic bottle baler. One end of the conveyor line is connected to the blow molding machine, and the plastic bottle baler is located at the other end of the conveyor line. The metal detector and weighing detector are located between the blow molding machine and the plastic bottle baler and are passed through the middle by the conveyor line. The system is characterized in that: The weighing detection machine includes a weighing platform, a weight scale is inlaid at the center of the upper surface of the weighing platform, and a rotating rod is also rotatably installed on the upper surface of the weighing platform. The bottom end of the rotating rod is connected to the weighing platform by a torsion spring, a rotating plate is fixed to the outside of the bottom end of the rotating rod, a cleaning strip is bonded to the bottom surface of the rotating plate, a fixed plate is fixed to the top of the rotating rod, a contact plate is fixed to one end of the fixed plate, a rotating support plate is provided above the contact plate, a lifting electric telescopic rod is fixed below one end of the rotating support plate, the bottom end of the lifting electric telescopic rod is fixed to the weighing platform, and a plastic bottle clamping assembly is fixed to the bottom of the other end of the rotating support plate.

2. The automatic packaging system for injection-blow bottles according to claim 1, characterized in that: A micro motor is fixed inside the top end of the lifting electric telescopic rod.

3. The automatic packaging system for injection-blow bottles according to claim 2, characterized in that: The output shaft end of the micro motor is flush with the upper end surface of the lifting electric telescopic rod, and the output shaft of the micro motor is fixed to the bottom surface of one end of the rotating support plate.

4. The automatic packaging system for injection-blow bottles according to claim 1, characterized in that: The plastic bottle clamping assembly includes a clamping electric telescopic rod, the top of which is fixed to the bottom surface of one end of the rotating support plate, the bottom of which is fixed with a lifting plate, and electromagnetic retraction rods are slidably inserted around the lifting plate.

5. The automatic packaging system for injection-blow bottles according to claim 4, characterized in that: A square electromagnet is provided at the inner center of the lifting plate, a return spring is provided between the square electromagnet and the electromagnetic contraction rod, and the square electromagnet and the electromagnetic contraction rod are electromagnetically connected.

6. The automatic packaging system for injection-blow bottles according to claim 5, characterized in that: A connecting plate is fixed to the outer end of the electromagnetic contraction rod, a clamping block is fixed to the inner side of the bottom end of the connecting plate, and one end surface of the clamping block is provided with an inwardly concave arc surface.

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