Bottle cap production process

Abstract

The invention relates to the technical field of injection molding, and discloses a bottle cap production process which is characterized by comprising the following steps: S1, injection molding production: adding raw materials for producing oil bottle caps into a hopper of an injection molding machine, and then carrying out injection molding operation; s2, an injection molding mechanical arm is used for transferring oil bottle caps, specifically, the injection molding mechanical arm installed at the injection molding end of an injection molding machine is used for taking and placing the injection-molded caps on a cap closing machine; s3, leak detection of a cover closing machine: performing air leakage detection on the injection-molded cover by using the cover closing machine; s4, turning the cover by using a cover closing machine: turning the cover subjected to air leakage detection by using the cover closing machine; s5, oil bottle cap branch conveying is conducted, specifically, the caps which are detected to be qualified are conveyed into a finished product box through a conveying belt, and waste products which are detected to be unqualified are blown into a waste product box through air blowing; s6, detecting and changing the box; when plastic bottle caps are produced, the production automation degree is high, automatic leakage detection can be achieved, the production process is simple, and the produced bottle caps have good antifouling performance.

Description

Technical Field

[0001] The invention relates to the field of plastic bottle cap production, in particular to a bottle cap production process. Background Art

[0002] Plastic bottle caps play an indispensable role in many key industries. First, in the food and beverage industry, it is an important barrier to maintain product freshness and quality, and is widely used in the sealed packaging of various beverages, seasonings and canned foods. Secondly, the cosmetics industry is also inseparable from plastic bottle caps, which ensure the stability and safety of products such as lotions and creams. Furthermore, the pharmaceutical industry also relies on plastic bottle caps to ensure the sterility and effectiveness of oral liquids, injections and other drugs.

[0003] The existing Chinese patent with publication number CN106496795A discloses a production process of a plastic bottle cap, which comprises the following steps: the first step is to prepare mixed plastic particles, comprising the following steps: step 1, fully and uniformly mixing a formula amount of tetrabutyl stannate and a silane coupling agent to obtain a mixture; step 2, heating the mixture obtained in step 1 to a certain temperature, then adding a formula amount of water and a catalyst to the mixture while stirring, and reacting for a certain time to obtain a reaction product; step 3, after melting a formula amount of plastic, adding a formula amount of dispersant and the reaction product obtained in step 2 to the molten plastic, then fusing them at a certain temperature, and then performing the processes of drawing, cooling and cutting to obtain mixed plastic particles; step 2, injection molding the mixed plastic particles obtained in the first step at a certain temperature by an injection molding machine to obtain the plastic bottle cap.

[0004] Another example is the Chinese patent with the existing publication number CN107472923B, which discloses an automated production line for PE plastic bottle caps and its production process, including a vacuum suction machine, an injection molding / compression molding machine, a blank imaging detection device, a ring cutting machine, a first cap sorting machine, a first imaging detection device, etc., and a rejection mechanism is provided between the plane imaging device and the ring cutting machine, and between the first imaging detection device and the printer / film laminating machine, including the following steps: S1, vacuum suction; S2, bottle cap molding; S3, blank detection, including front and back side detection of the bottle cap blank; S4, ring cutting; S5, cap sorting; S6, ring cutting imaging detection; S7, printing / film laminating; S9, disinfection.

[0005] The above patents have some advantages, but also some disadvantages, such as: the plastic bottle caps lack certain anti-fouling ability, and the production process of the plastic bottle caps is complicated, and it is impossible to leak the plastic bottle caps. Summary of the invention

[0006] The present invention provides a bottle cap production process to solve the problems raised in the background technology.

[0007] The present invention provides the following technical solution: a bottle cap production process, comprising the following steps:

[0008] S1. Injection molding production: Add the raw materials for producing oil bottle caps into the hopper of the injection molding machine and then perform the injection molding operation;

[0009] S2. Transferring the oil bottle cap by the injection molding robot: Using the injection molding robot installed at the injection molding end of the injection molding machine, the molded cap is taken and placed on the capping machine;

[0010] S3, Leakage detection of capping machine: Use the capping machine to detect air leakage of the injection molded cap;

[0011] S4, capping machine flipping: using the capping machine to flip the caps that have passed the air leakage test;

[0012] S5, oil bottle caps are transported in separate routes: qualified caps are transported to the finished product box through the conveyor belt, and unqualified waste caps are blown into the waste box by air blowing;

[0013] S6. Detection and box change: Install a photoelectric counter on the conveyor belt, use the photoelectric counter to detect the number of oil bottle caps, and perform box change operation when the set number is reached.

[0014] Preferably, the injection molding raw material used in S1 includes the following components by mass: 70-80 parts of polytetrafluoroethylene, 40-50 parts of polyethylene, 20-30 parts of epoxy resin, 5-8 parts of plasticizer, 2-3 parts of curing agent, and 2-4 parts of stabilizer.

[0015] Preferably, the plasticizer is a mixture of one or more of dibutyl phthalate, dioctyl phthalate, tricresyl phosphate and benzophenone.

[0016] Preferably, the curing agent is one of hexamethylenetetramine and ethylenediamine, and the stabilizer is one of stearylbenzoylmethane and dibenzoylmethane.

[0017] Preferably, the injection molding robot in S2 is equipped with a smart camera, the injection molding robot and the smart camera are respectively connected to a remote controller via a wireless communication module, the remote controller is electrically connected to a display terminal, and the display terminal is used to display the screen of the smart camera.

[0018] Preferably, when the S3 is used for leak detection in the capping machine, the detection method adopted is: put the product to be tested into the mold in the capping machine, select the set program, press the start button, control the air intake pressure to 45Kpa, the air intake time to 8s, the voltage stabilization to 8s, the test time to 5s, the air release time to 3s, if the leakage value does not exceed 15pa, it means that the bottle cap has passed the leakage test.

[0019] Preferably, when the capping machine flips the cap, the S4 uses a negative pressure adsorption plate to adsorb the cap that has passed the inspection, controls the negative pressure adsorption plate to flip by controlling the motor, turns the cap over, releases the negative pressure after the flipping, and uses a push plate driven by a cylinder to push the cap onto the conveyor belt.

[0020] Preferably, when the S5 is transmitting the oil bottle caps in a branch path, an automatic moving robot is arranged at the bottom of the finished product box and the bottom of the waste box, a pressure sensor is installed on the top of the automatic moving robot, and the automatic moving robot is connected to a remote controller. When the pressure sensor senses that the weight exceeds a preset value, the automatic moving robot drives the finished product box and the waste box to be replaced.

[0021] The present invention has the following beneficial effects:

[0022] When producing plastic bottle caps, the present invention has a high degree of production automation, can realize automatic leakage detection, has a relatively simple production process, and the produced bottle caps have good anti-fouling performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Flow chart of bottle cap production process. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] For example, see Figure 1 , a bottle cap production process, comprising the following steps:

[0026] S1. Injection molding production: Add the raw materials for producing oil bottle caps into the hopper of the injection molding machine and perform the injection molding operation. The injection molding temperature is controlled at 200℃-210℃, and then the injection-molded plastic caps are cooled at room temperature;

[0027] S2. Transferring the oil bottle cap by the injection molding robot: Using the injection molding robot installed at the injection molding end of the injection molding machine, the molded cap is taken and placed on the capping machine;

[0028] S3, Leakage detection of capping machine: Use the capping machine to detect air leakage of the injection molded cap;

[0029] S4, capping machine flipping: using the capping machine to flip the caps that have passed the air leakage test;

[0030] S5, oil bottle caps are transported in separate routes: qualified caps are transported to the finished product box through the conveyor belt, and unqualified waste caps are blown into the waste box by air blowing;

[0031] S6. Detection and box change: Install a photoelectric counter on the conveyor belt, use the photoelectric counter to detect the number of oil bottle caps, and perform box change operation when the set number is reached.

[0032] The injection molding raw materials used in S1 include the following components by mass: 70 parts of polytetrafluoroethylene, 50 parts of polyethylene, 20 parts of epoxy resin, 8 parts of plasticizer, 2 parts of curing agent, and 2 parts of stabilizer.

[0033] Wherein, the plasticizer is dibutyl phthalate.

[0034] Wherein, the curing agent is hexamethylenetetramine.

[0035] Among them, the injection molding robot in S2 is equipped with a smart camera, the injection molding robot and the smart camera are respectively connected to a remote controller through a wireless communication module, and the remote controller is electrically connected to a display terminal, which is used to display the screen of the smart camera.

[0036] Among them, when S3 is leak testing in the capping machine, the detection method adopted is: put the product to be tested into the mold in the capping machine, select the set program, press the start button, control the air intake pressure to 45Kpa, the air intake time is 8s, the pressure stabilization is 8s, the test time is 5s, and the air release time is 3s. If the leakage value does not exceed 15pa, it means that the bottle cap has passed the leakage test.

[0037] Among them, when the S4 capping machine flips the lid, it uses a negative pressure adsorption plate to adsorb the lid that has passed the inspection, and controls the negative pressure adsorption plate to flip by controlling the motor to turn the lid over. After the flipping is completed, the negative pressure is released, and the lid is pushed onto the conveyor belt using a push plate driven by a cylinder.

[0038] Among them, when S5 is transmitting the oil bottle caps in a branch route, an automatic moving robot is set at the bottom of the finished product box and the bottom of the waste box, and a pressure sensor is installed on the top of the automatic moving robot. The automatic moving robot is connected to the remote controller. When the pressure sensor senses that the weight exceeds the preset value, the automatic moving robot drives the finished product box and the waste box to be replaced.

[0039] Among them, when producing plastic bottle caps, the present invention has a high degree of production automation, can realize automatic leakage detection, and has a relatively simple production process. The produced bottle caps have good anti-fouling performance.

[0040] For example 2, please refer to Figure 1 , a bottle cap production process, comprising the following steps:

[0041] S1. Injection molding production: Add the raw materials for producing oil bottle caps into the hopper of the injection molding machine and perform the injection molding operation, control the injection molding temperature to 230℃-240℃, and then cool the injection molded plastic caps at room temperature;

[0042] S2. Transferring the oil bottle cap by the injection molding robot: Using the injection molding robot installed at the injection molding end of the injection molding machine, the molded cap is taken and placed on the capping machine;

[0043] S3, Leakage detection of capping machine: Use the capping machine to detect air leakage of the injection molded cap;

[0044] S4, capping machine flipping: using the capping machine to flip the caps that have passed the air leakage test;

[0045] S5, oil bottle caps are transported in separate routes: qualified caps are transported to the finished product box through the conveyor belt, and unqualified waste caps are blown into the waste box by air blowing;

[0046] S6. Detection and box change: Install a photoelectric counter on the conveyor belt, use the photoelectric counter to detect the number of oil bottle caps, and perform box change operation when the set number is reached.

[0047] The injection molding raw materials used in S1 include the following components by mass: 80 parts of polytetrafluoroethylene, 45 parts of polyethylene, 25 parts of epoxy resin, 8 parts of plasticizer, 3 parts of curing agent, and 4 parts of stabilizer.

[0048] Wherein, the plasticizer is dioctyl phthalate.

[0049] Among them, the curing agent is ethylenediamine and the stabilizer is stearyl benzoyl methane.

[0050] Among them, the injection molding robot in S2 is equipped with a smart camera, the injection molding robot and the smart camera are respectively connected to a remote controller through a wireless communication module, and the remote controller is electrically connected to a display terminal, which is used to display the screen of the smart camera.

[0051] Among them, when S3 is leak testing in the capping machine, the detection method adopted is: put the product to be tested into the mold in the capping machine, select the set program, press the start button, control the air intake pressure to 45Kpa, the air intake time is 8s, the pressure stabilization is 8s, the test time is 5s, and the air release time is 3s. If the leakage value does not exceed 15pa, it means that the bottle cap has passed the leakage test.

[0052] Among them, when the S4 capping machine flips the lid, it uses a negative pressure adsorption plate to adsorb the lid that has passed the inspection, and controls the negative pressure adsorption plate to flip by controlling the motor to turn the lid over. After the flipping is completed, the negative pressure is released, and the lid is pushed onto the conveyor belt using a push plate driven by a cylinder.

[0053] Among them, when S5 is transmitting the oil bottle caps in a branch route, an automatic moving robot is set at the bottom of the finished product box and the bottom of the waste box, and a pressure sensor is installed on the top of the automatic moving robot. The automatic moving robot is connected to the remote controller. When the pressure sensor senses that the weight exceeds the preset value, the automatic moving robot drives the finished product box and the waste box to be replaced.

[0054] Among them, when producing plastic bottle caps, the present invention has a high degree of production automation, can realize automatic leakage detection, and has a relatively simple production process. The produced bottle caps have good anti-fouling performance.

[0055] For example 3, please refer to Figure 1 , a bottle cap production process, comprising the following steps:

[0056] S1. Injection molding production: Add the raw materials for producing oil bottle caps into the hopper of the injection molding machine and perform the injection molding operation, control the injection molding temperature to 220℃-230℃, and then cool the injection molded plastic caps at room temperature;

[0057] S2. Transferring the oil bottle cap by the injection molding robot: Using the injection molding robot installed at the injection molding end of the injection molding machine, the molded cap is taken and placed on the capping machine;

[0058] S3, Leakage detection of capping machine: Use the capping machine to detect air leakage of the injection molded cap;

[0059] S4, capping machine flipping: using the capping machine to flip the caps that have passed the air leakage test;

[0060] S5, oil bottle caps are transported in separate routes: qualified caps are transported to the finished product box through the conveyor belt, and unqualified waste caps are blown into the waste box by air blowing;

[0061] S6. Detection and box change: Install a photoelectric counter on the conveyor belt, use the photoelectric counter to detect the number of oil bottle caps, and perform box change operation when the set number is reached.

[0062] The injection molding raw materials used in S1 include the following components by mass: 70 parts of polytetrafluoroethylene, 40 parts of polyethylene, 20 parts of epoxy resin, 5 parts of plasticizer, 2 parts of curing agent, and 2 parts of stabilizer.

[0063] Wherein, the plasticizer is tricresyl phosphate.

[0064] Among them, the curing agent is hexamethylenetetramine and the stabilizer is stearylbenzoylmethane.

[0065] Among them, the injection molding robot in S2 is equipped with a smart camera, the injection molding robot and the smart camera are respectively connected to a remote controller through a wireless communication module, and the remote controller is electrically connected to a display terminal, which is used to display the screen of the smart camera.

[0066] Among them, when S3 is leak testing in the capping machine, the detection method adopted is: put the product to be tested into the mold in the capping machine, select the set program, press the start button, control the air intake pressure to 45Kpa, the air intake time is 8s, the pressure stabilization is 8s, the test time is 5s, and the air release time is 3s. If the leakage value does not exceed 15pa, it means that the bottle cap has passed the leakage test.

[0067] Among them, when the S4 capping machine flips the lid, it uses a negative pressure adsorption plate to adsorb the lid that has passed the inspection, and controls the negative pressure adsorption plate to flip by controlling the motor to turn the lid over. After the flipping is completed, the negative pressure is released, and the lid is pushed onto the conveyor belt using a push plate driven by a cylinder.

[0068] Among them, when S5 is transmitting the oil bottle caps in a branch route, an automatic moving robot is set at the bottom of the finished product box and the bottom of the waste box, and a pressure sensor is installed on the top of the automatic moving robot. The automatic moving robot is connected to the remote controller. When the pressure sensor senses that the weight exceeds the preset value, the automatic moving robot drives the finished product box and the waste box to be replaced.

[0069] Among them, when producing plastic bottle caps, the present invention has a high degree of production automation, can realize automatic leakage detection, and has a relatively simple production process. The produced bottle caps have good anti-fouling performance.

[0070] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A bottle cap production process, characterized in that: The following steps are involved: S1. Injection molding production: Add the raw materials for producing oil bottle caps into the hopper of the injection molding machine and then perform the injection molding operation; S2. Transferring the oil bottle cap by the injection molding robot: Using the injection molding robot installed at the injection molding end of the injection molding machine, the molded cap is taken and placed on the capping machine; S3, Leakage detection of capping machine: Use the capping machine to detect air leakage of the injection molded cap; S4, capping machine flipping: using the capping machine to flip the caps that have passed the air leakage test; S5, oil bottle caps are transported in separate routes: qualified caps are transported to the finished product box through the conveyor belt, and unqualified waste caps are blown into the waste box by air blowing; S6. Detection and box change: Install a photoelectric counter on the conveyor belt, use the photoelectric counter to detect the number of oil bottle caps, and perform box change operation when the set number is reached.

2. The bottle cap production process according to claim 1, characterized in that: The injection molding raw material used in S1 includes the following components by weight: 70-80 parts of polytetrafluoroethylene, 40-50 parts of polyethylene, 20-30 parts of epoxy resin, 5-8 parts of plasticizer, 2-3 parts of curing agent, and 2-4 parts of stabilizer.

3. The bottle cap production process according to claim 2, characterized in that: The plasticizer is a mixture of one or more of dibutyl phthalate, dioctyl phthalate, tricresyl phosphate and benzophenone.

4. The bottle cap production process according to claim 2, characterized in that: The curing agent is one of hexamethylenetetramine and ethylenediamine, and the stabilizer is one of stearylbenzoylmethane and dibenzoylmethane.

5. The bottle cap production process according to claim 1, characterized in that: The injection molding robot in S2 is equipped with a smart camera. The injection molding robot and the smart camera are respectively connected to a remote controller via a wireless communication module. The remote controller is electrically connected to a display terminal, and the display terminal is used to display the screen of the smart camera.

6. The bottle cap production process according to claim 1, characterized in that: When the S3 is used for leak detection in the capping machine, the detection method adopted is: put the product to be tested into the mold in the capping machine, select the set program, press the start button, control the air intake pressure to 45Kpa, the air intake time to 8s, the pressure stabilization to 8s, the test time to 5s, and the air release time to 3s. If the leakage value does not exceed 15pa, it means that the bottle cap has passed the leakage test.

7. The bottle cap production process according to claim 1, characterized in that: When the capping machine flips the cap, S4 uses a negative pressure adsorption plate to adsorb the caps that have passed the inspection, and controls the negative pressure adsorption plate to flip by controlling the motor to turn the caps over. After the flipping is completed, the negative pressure is released, and the push plate driven by the cylinder is used to push the caps onto the conveyor belt.

8. The bottle cap production process according to claim 5, characterized in that: When the S5 is transmitting the oil bottle caps in a branching manner, an automatic moving robot is arranged at the bottom of the finished product box and the bottom of the waste box, a pressure sensor is installed on the top of the automatic moving robot, and the automatic moving robot is connected to a remote controller. When the pressure sensor senses that the weight exceeds a preset value, the automatic moving robot drives the finished product box and the waste box to be replaced.

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