TH36381A - Method of checking transverse sealing in packaging units for sealed containers. Which is continuously formed with the poured out food products - Google Patents

Abstract

DC60 (26/10/41) A method aimed at determining the indirectly absorbed energy by an electrically conductive layer (5) that makes up the material strip part of the material to be packaged (1) to be sealed accordingly. Diagonal The method is based on measurements. Variables related to the energy supplied by the current source (45) to the material to be packed (1) during sealing. And with the temperature of the conductive layer (5), this temperature measurement enters the calculation of the product temperature. To be packed Characteristics of the material to be packed And the feature of the mechanical sealing section, correction of the cutting of the material to be packaged after sealing, is also determined. And various variables will be monitored by the quantities associated with the measurements. And by comparing it with acceptable terms A method aimed at determining the indirect absorbed energy by an electrically conductive layer (5) that makes up the material strip part of the packaged material (1) to be sealed transversely. The method is based on a variable measure related to the energy supplied by the current source (45) to the material to be packed (1) during sealing and with the conductive temperature (5). To calculate the temperature of the product to be packaged, the characteristics of the material to be packed. And features of the mechanical sealing part Correction of cuts of packaged material after sealing is also determined. And various variables Will be monitored by the quantity combined with the measurement And by comparing it with acceptable terms

Claims (3)

1. The method of monitoring the transverse sealing on the packaging unit (10) consists of a sealing current source (21) and at least a pair of tweezers (15,16), at least one (15, 16) jaws. 16); At least one (15) tweezers of such paired jaws supporting the inductor (25); As mentioned, this method consists of a process of compressing the tube (12) of the material to be packed (1) containing at least one conductive layer (5), a heat sealant layer (4,6). And a layer of fibrous material (2) and which is then filled with spilled food products. The inductance (25) is supplied during the pressing process. With electric current to generate the sealing current in the aforementioned conductive layer (5) and to measure the amount of output relative to that current. The measurement of the amount associated with the force absorbed by the aforementioned packaged material (1) during the process of supplying such sealing current. It is characterized by the process of measuring such quantities by the acquisition of the difference in the distances between the tweezers before and after the sealing. 2. The method as requested by the claim. Clause 1, which has specific characteristics that the quantification process associated with such absorbed force, consists of a variable monitoring procedure in relation to the energy supplied by the body. The said lead (25) goes to the material to be packaged (1) and the variables relative to the temperature of the conductive layer (5) thereof. Section 1 or 2 has specific characteristics that such output power shall consist of current, voltage and phase angle generated by the said source (45). Any one of the above claims Which is characterized by the acquisition of a loading error signal from the aforementioned source (45) 5. The method of which one of the rights in any of the above claims is exercised. Which are characterized by the following chapter of quantity calculation The load impedance found by the aforementioned source (45) and the power of the current generated by that source. 6. The method referred to in Clause 5, characterized by the procedure of The acquisition of at least one of the following quantities The thickness of the conductive layer (5), the temperature of the cooling fluid of the ductile (25), the pressure exerted by the tweezer. 7. The method for which any of the claims 2-6 is characterized is that the monitoring process of the variables associated with the affected energy is specified for the temperature of the food that can be poured out. The payment shall consist of procedures for inspecting the force originated by the said source (45). 8. The method referred to in Article 7 is characterized by at least one monitoring process. In the following variables: 1) a change in the supply voltage of the aforementioned source (45); 2) the absence of such current; And 3) sealing time 9. The method as claimed in Clause 8, which has a unique feature that the procedure for monitoring such variable 1) consists of a procedure for obtaining a false signal. Missed the load from the aforementioned (45) source; The procedure for monitoring such variables 2) consists of the process of obtaining the said current; And such a procedure for monitoring such variable 3) consists of the procedure for measuring the length of the sealing control signal (s) supplied by the said source (45) and the calculation of the energy supplied to the body. Induced (25) as mentioned 1 0. The method for which any of the claims 2-9 is characterized is that the process of monitoring variables related to the power being supplied will be It consists of a procedure for monitoring the power transmitted by such inductors (25) 1. 1. The method, as described in Clause 10, has a unique feature that the procedure for monitoring the transmitted force consists of at least one of the following variables: This 4) the power loss of an inductor (25) thereof; 5) inertial current; 6 the resistance of the part for the transmission of the aforementioned sealing current to the said inductor; And 7) cooling of the inductor 1 2. The method as claimed in Clause 10, which has specific characteristics that such step of monitoring variable 4) contains the procedure of The acquisition of such pipe compression (12) during sealing The cooling fluid temperature value of the said inductor (25) and the source load impedance (45) thereof; The aforementioned stages of monitoring variables 5) and 6) contain the procedure for obtaining the phase angle of the said power output; And the aforementioned steps of monitoring the variable 7) consisted of the procedure for obtaining the aforementioned temperature values before and after sealing. 1. 3. The method requested to claim any one of the claims. Article 2-12, which has specific characteristics at this stage of monitoring variables relative to the temperature of the conductive layer (5), consists of the procedure for monitoring the parameters as follows: 8) The temperature of the fed product. (12) 1 4. The method referred to in any of Clause 2-13, which has specific characteristics that such procedure of monitoring variables related to temperature of The conductive layer (5) consists of the procedure for determining the characteristics of the material to be packaged (1) as such 1 5. The method of claiming Clause 13, which has specific characteristics at the procedure The last specification of the material to be packaged (1) shall consist of at least one of the following monitoring procedures: 9) the thickness of the conductive layer (5) thereof; 10) Thickness of the aforementioned layer of fibrous material (2); 11 change in the thickness of the aforementioned heat-sealing layer (4,6); 12X the thickness of the heat-sealing layer. ; 13 The quality of the heat sealing layer; And 14) type of material to be packaged (1) 1 6. The method for which the claim is made in Clause 15 has specific characteristics that such procedure of monitoring variable 9) contains the procedure of Measurement of such thickness directly And the acquisition of the load impedance of the aforementioned source (45) and the phase angle value of the said power output. Of such pipe compression value (12) during sealing And the distance between the jaws (15,16) in the aforementioned pair of tweezers before sealing; The aforementioned procedures of monitoring such variables 11), 12) and 13) consist of the procedure for obtaining the aforementioned compression values of the aforementioned pipes (12); And the aforementioned procedure of monitoring variable 14) consists of the procedure for obtaining the aforementioned compression values of the said pipes. 1 7. The method referred to in any of Clause 2-12, which is characterized by such procedures of monitoring variables relative to the temperature of the floor Conductive (5) consists of a procedure for determining the characteristics of the pressure exerted by a pair of (15,16) tweezers on the aforementioned pipe (12). Clause 17, which is unique at such stage of pressure characterization, consists of at least one of the monitoring steps of the following parameters: 15) longitudinal changes in the pressure of the pair of tweezers. (15 m 16) as above; (16) the pressure of such tweezers; 17) the stability of such tweezers; 18) defect in the second (16) tweezers of such tweezers; And 19) the parallelism between the aforementioned (15) tweezers and the aforementioned second (16) tweezers. 1. 9. Method as requested in Clause 18, which has specific characteristics at the procedure The aforementioned monitoring variable 15) consists of a procedure for obtaining the aforementioned pipe compression (12) during sealing. The procedure for monitoring such variable 16) consists of the procedure for obtaining a signal of hydraulic pressure applied at least one of the jaws (16) of the jaws during the procedure. During the compression of the said And the acquisition of such compression values; And the aforementioned procedures of monitoring variables 17), 18) and 19) consist of the procedures for obtaining the aforementioned compression values. 2 0. What is the method for which the rights are claimed? One of the above claims Its characteristics, including the procedure for determining variables, are as follows: 20) Movement of the cutting blades for cutting (15) such tubes after sealing. Clause 20, which is characterized by the aforementioned procedure of determining the variable 20), consists of the procedure for obtaining the aforementioned source load impedance (45) and the phase angle value of the electric quantity. Issued 2 2. Packaging unit (10) for performing the method as requested by any of the above claims. And consists of a sealing device (21,15,16) for a pipe seal (12) made up of a material to be packed (1) consisting of at least a conductive layer (5) a heat sealing layer (4). , 6) and fibrous material layers (2) and are filled with spilled food products.Such sealing devices (21,15,16) consist of: At least a pair of tweezers (15,16), at least one tweezer (15), will support the inductor (25); Route (41) for mutual compression of such tweezers; A sealing current source (21) is connected to such inductor (25) and generates the sealing current; And the first measurement method (47) for the measurement of the output power relative to that current; A second method of measurement (22,30; 40a; 42; 43, 44, 47) for quantitative measurements related to the force absorbed by the aforementioned material (1) during sealing. Which has a unique feature that the second measurement path 22,30; 40a; 42; 43,44,47). This consists of a method for obtaining a divergence between tweezers (15,16) in such tweezers before and after sealing 2. 3. The packaging unit, as requested in Clause 22, is characterized by the processor (22), which includes the central network (48), receives such power. And that quantity has to do with the absorbed power. And generate fault signals