Automatic mixing and feeding device for PE square raw materials

Abstract

The utility model relates to the technical field of square carpet production line corollary equipment, in particular to an automatic PE square raw material mixing and feeding device which comprises a conveying pipeline, the discharging end of the conveying pipeline is connected with a material supplementing bin, the discharging end of the material supplementing bin is provided with a material supplementing and feeding valve, and the material supplementing and feeding valve is used for controlling opening and closing of the material supplementing bin; the weighing stock bin is connected with the material supplementing and feeding valve, a weighing sensor is installed in the weighing stock bin, and the weighing sensor is used for weighing raw materials in the weighing stock bin; the servo discharger is connected with the discharging end of the weighing bin, the servo discharger is connected with a pipeline, the discharging end of the pipeline is connected with a collection hopper, and a stirrer is installed on the collection hopper; the screw extruder is connected with the discharging end of the collecting hopper; and the PLC control circuit is connected with the whole device. According to the automatic mixing and feeding device for the PE square raw materials, manual work is replaced by equipment, labor is reduced, errors are avoided, mixing uniformity is improved, residual materials caused by batch replacement are avoided, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting equipment for a carpet tile production line, in particular to an automatic mixing and feeding device for PE tile raw materials. Background Art

[0002] A PE carpet tile production line transforms tufted carpet into environmentally friendly, odorless PE carpet tiles. The production process is divided into five steps: pre-coating, gluing, cutting, packaging, and warehousing. The gluing process involves using a screw extruder to deliver a mixture of hot-melt materials to the gluing machine. In actual production, the materials must be manually mixed according to the process recipe and then added to the hopper. Due to the varying product types, the proportions of the hot-melt materials vary. With the increasing number of custom orders and small batches, the proportions of the various pellets must be adjusted daily. Manual mixing is inconvenient and prone to errors, resulting in uneven mixing when changing batches. This can affect the quality of the finished carpet and may even result in defective products. Therefore, an automatic mixing and loading device for PE carpet tiles is needed to address these issues. Utility Model Content

[0003] The purpose of the embodiment of the present utility model is to provide an automatic mixing and feeding device for PE block raw materials to solve the problems mentioned in the background technology.

[0004] The embodiment of the present utility model is implemented as follows: an automatic mixing and feeding device for PE block raw materials, comprising: a transmission pipeline, the discharge end of the transmission pipeline is connected to a feeding bin, the discharge end of the feeding bin is equipped with a feeding valve, the feeding valve is used to control the opening and closing of the feeding bin; a weighing bin, which is connected to the feeding valve, the weighing bin is equipped with a weighing sensor, the weighing sensor is used to weigh the raw materials in the weighing bin; a servo discharger, which is connected to the discharge end of the weighing bin, the servo discharger is connected to a pipeline, the discharge end of the pipeline is connected to a collecting hopper, the collecting hopper is equipped with a stirrer for stirring the raw materials; a screw extruder, which is connected to the discharge end of the collecting hopper, and is used to export the mixed raw materials; a PLC control circuit, which is connected to the entire device and is used to control the entire device.

[0005] Preferably, the transmission pipeline, the feeding bin, the feeding valve, the weighing bin, the weighing sensor and the servo discharger are each provided in four groups.

[0006] Preferably, the feed valve is a proportional valve.

[0007] Preferably, it also includes: a servo controller connected to the servo discharger and used for controlling the servo discharger.

[0008] Preferably, the weighing sensor is a loss-in-weight scale.

[0009] The PE block raw material automatic mixing and feeding device provided by the utility model replaces manual labor with equipment, reduces the use of manpower, avoids errors, improves mixing uniformity, puts an end to the occurrence of leftover materials when changing batches, ensures the quality of finished carpets, is simple to operate, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the automatic mixing and feeding device for PE block raw materials.

[0011] In the attached figure: 1-transmission pipeline, 2-feeding bin, 3-feeding feed valve, 4-weighing bin, 5-weighing sensor, 6-servo discharger, 7-pipeline, 8-collecting hopper, 9-agitator, 10-screw extruder, 11-PLC control circuit, 12-servo controller. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the present invention.

[0013] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0014] See also Figure 1 The embodiment of the present invention provides an automatic mixing and feeding device for PE block raw materials, and the automatic mixing and feeding device for PE block raw materials comprises:

[0015] A transmission pipeline 1, wherein the discharge end of the transmission pipeline 1 is connected to a feeding bin 2, and a feeding valve 3 is installed at the discharge end of the feeding bin 2, and the feeding valve 3 is used to control the opening and closing of the feeding bin 2; a weighing bin 4, which is connected to the feeding valve 3, and a weighing sensor 5 is installed in the weighing bin 4, and the weighing sensor 5 is used to weigh the raw materials in the weighing bin 4; a servo discharger 6, which is connected to the discharge end of the weighing bin 4, and the servo discharger 6 is connected to a pipeline 7, and the discharge end of the pipeline 7 is connected to a collecting hopper 8, and a stirrer 9 for stirring the raw materials is installed on the collecting hopper 8; a screw extruder 10, which is connected to the discharge end of the collecting hopper 8, and is used to export the mixed raw materials; a PLC control circuit 11, which is connected to the entire device and is used to control the entire device.

[0016] First, set the total feed rate (kg / h), then the total output (kg / h) corresponding to the screw extruder 10 frequency, then the percentage (%) of each pellet, then the flow rate (kg / h) of each pellet, and finally the refill threshold percentage (%). Then, set the speed ratio (%) between the agitator 9 and the screw extruder 10. After these settings, N process recipes are generated. The system has a feed inlet and a discharge inlet. According to the process recipe settings, pellets at the feed inlet are first transferred through a transmission pipe 1 to a refill hopper 2. Then, they pass through a refill valve 3 to a weighing hopper 4. Then, they pass through a servo discharger 6 to a collection hopper 8. After being stirred by a stirrer 9, they enter the screw extruder 10. The discharge rate of the servo discharger 6 varies with the production speed frequency (Hz) of the screw extruder 10 and is fed back to the PLC control circuit 11. If the pellets in the weighing hopper 4 fall below the preset feed threshold percentage (%), the refill valve 3 opens to refill. The opening size is adjusted based on the feedback from the weighing hopper 4.

[0017] like Figure 1 As shown, as a preferred embodiment of the present invention, the transmission pipeline 1, the feeding bin 2, the feeding valve 3, the weighing bin 4, the weighing sensor 5 and the servo discharger 6 are all provided in four groups.

[0018] like Figure 1 As shown in FIG. 1 , as a preferred embodiment of the present invention, the feed valve 3 is a proportional valve.

[0019] The feed valve 3 is a proportional valve, the opening size of which is controlled by a pre-set PLC, and a feedback signal is sent to the PLC control circuit 11 to form PID control.

[0020] like Figure 1 As shown, as a preferred embodiment of the present invention, it also includes: a servo controller 12, which is connected to the servo discharger 6 and is used to control the servo discharger 6.

[0021] The servo discharger 6 is controlled by a servo controller 12, and the speed needs to be calibrated in advance. The speed corresponds to the signal measured by the weighing sensor 5. And there is a feedback signal to the PLC control circuit 11 to form PID control.

[0022] like Figure 1 As shown, as a preferred embodiment of the present invention, the weighing sensor 5 is a loss-in-weight scale.

[0023] The weighing silo 4 uses a loss-in-weight scale as a weighing sensor 5. The sensor is directly installed at the bottom of the weighing silo 4 and is pre-calibrated. The measured signal is processed by PLC and superimposed on the operating frequency of the screw extruder 10 to control the opening size of the feeding valve 3 and the speed of the servo discharger 6, forming two PID controls.

[0024] The stirrer 9 is controlled by a frequency converter, and the speed corresponds to the frequency of the screw extruder 10 and is calibrated in advance.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PE block raw material automatic mixing and feeding device, including a transmission pipeline, characterized in that: The discharge end of the transmission pipeline is connected to a feeding bin, and a feeding valve is installed at the discharge end of the feeding bin, and the feeding valve is used to control the opening and closing of the feeding bin; A weighing silo is connected to the feeding valve, and a weighing sensor is installed in the weighing silo for weighing the raw materials in the weighing silo; A servo discharger is connected to the discharge end of the weighing silo, the servo discharger is connected to a pipeline, the discharge end of the pipeline is connected to a collecting hopper, and the collecting hopper is equipped with a stirrer for stirring the raw materials; A screw extruder connected to the discharge end of the collecting hopper is used to discharge the mixed raw materials; The PLC control circuit is connected to the entire device and is used to control the entire device.

2. The PE block raw material automatic mixing and feeding device according to claim 1, characterized in that: The transmission pipeline, the feeding bin, the feeding valve, the weighing bin, the weighing sensor and the servo discharger are all provided in four groups.

3. The automatic mixing and feeding device for PE block raw materials according to claim 1, characterized in that: The feed valve is a proportional valve.

4. The PE block raw material automatic mixing and feeding device according to claim 1, characterized in that: Also includes: The servo controller is connected to the servo discharger and is used to control the servo discharger.

5. The automatic mixing and feeding device for PE block raw materials according to claim 1, characterized in that: The weighing sensor is a loss-in-weight scale.

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