Edge band extrusion metering control equipment

Abstract

The invention discloses edge sealing strip extrusion metering control equipment which comprises an extruder, meter weight equipment, a width metering device and a thickness metering device, the extruder comprises an extrusion opening, the width metering device and the thickness metering device are installed at the extrusion opening, and the width metering device comprises a first metering assembly and a second metering assembly. The first metering assembly and the second metering assembly are provided with connecting frames and meter counting wheels, the meter counting wheels are rotationally installed on the connecting frames and abut against the two narrow side faces of the edge sealing strip, the first metering assembly is provided with a first distance sensor, the second metering assembly is provided with a second distance sensor, and the width of the edge sealing strip is correspondingly measured. The thickness metering assembly comprises a rolling piece and a third distance sensor, the rolling piece abuts against the wide side face of the edge sealing strip and can be close to or away from the third distance sensor, and the third distance sensor measures the telescopic change of the rolling piece. Through the width metering device and the thickness metering device, the width and the thickness of the extruded edge band can be measured in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of lath extrusion metering, and more specifically to an edge banding strip extrusion metering control device. Background Art

[0002] In the prior art, edge banding is a material used to protect, decorate and beautify the cross-section of furniture panels, and is usually produced by extruding a single thermoplastic strip. Existing extrusion equipment is equipped with a meter weight control device that can calculate the weight of raw materials required per meter according to the set width and thickness of the edge banding, to ensure that the thickness and width of the extruded edge banding meet the standards. However, during the extrusion process of the edge banding, the width and thickness of the edge banding may fluctuate due to environmental factors, and the information feedback on the extruded width and thickness of the edge banding is not timely, and the extruded edge banding is not measured in real time. The accumulation of various situations may lead to abnormal feeding of the meter weight equipment. Therefore, a technical solution is needed to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, to be able to measure the width and thickness of an extruded edge banding strip in real time, and to provide an edge banding strip extrusion metering control device.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] The present invention discloses an edge banding strip extrusion metering control device, comprising an extruder, a meter weight device, a width metering device, and a thickness metering device. The meter weight device feeds the extruder. The extruder comprises an extrusion port, and the extrusion port extrude the edge banding strip. The width metering device and the thickness metering device are installed on the extruder. The extruder is provided with one end of the extrusion port. The width metering device comprises a first metering component and a second metering component. Both the first metering component and the second metering component are provided with a connecting frame and a metering wheel. The metering wheel is rotatably installed on the connecting frame. The two metering wheels respectively abut against two narrow side surfaces of the edge banding strip. The connecting frame of the first metering component is installed with a first distance sensor, and the connecting frame of the second metering component is installed with a second distance sensor. The first distance sensor and the second distance sensor measure the width of the edge banding strip accordingly. The thickness metering device includes two thickness metering components, and the two thickness metering components are respectively located on both sides of the edge banding strip. Each of the thickness metering components includes at least one rolling element and at least one third distance sensor. The rolling element is against the wide side of the edge banding strip. The rolling element can approach or move away from the third distance sensor, and the third distance sensor measures the expansion and contraction changes of the rolling element.

[0006] Furthermore, the first metering component and the second metering component both include a mounting bracket and a movable frame, the mounting bracket is fixedly mounted on the extruder, the movable frame is mounted on the mounting bracket, one end of the connecting frame is rotatably mounted on the movable frame, a first spring is installed between the movable frame and the connecting frame, the first spring can support the connecting frame, the other end of the connecting frame is bent toward the direction of the edge banding strip, and the meter wheel is installed on one end of the connecting frame close to the edge banding strip.

[0007] Furthermore, a first baffle is provided at the upper and lower ends of the movable frame, an installation space is formed between the two first baffles, the connecting frame is partially located in the installation space, one end of the connecting frame is rotatably installed in the installation space, a second baffle is provided on the side of the connecting frame facing the two first baffles, and a first spring is installed between the first baffle and the second baffle opposite to each other.

[0008] Furthermore, the first metering assembly and the second metering assembly both include a driving device, which is installed on the mounting bracket. The driving device drives the movable frame to move up and down along the mounting bracket, and the two meter wheels can move closer to or farther away from each other.

[0009] Further, one of the first distance sensor and the second distance sensor is provided with a transmitting point, and one of the first distance sensor and the second distance sensor is provided with a receiving surface, and the transmitting point always falls within the horizontal projection range of the receiving surface.

[0010] Furthermore, the width measuring device includes a connecting plate, the first distance sensor is rotatably mounted on the connecting frame of the first measuring component through a connecting rod, the second distance sensor is rotatably mounted on the connecting frame of the second measuring component through a connecting rod, one end of the connecting rod passes through the connecting frame, the connecting plate is provided with a limiting groove, the other end of the connecting rod is slidably mounted on the limiting groove, and the limiting groove extends in a straight line direction.

[0011] Furthermore, the emitting point is located at the first distance sensor, the receiving surface is located at the second distance sensor, the emitting point is flush with the lower end of the first metering component, and the receiving surface is flush with the upper end of the second metering component.

[0012] Furthermore, the thickness measuring assembly includes a shell and a guide member, the shell is provided with a guide cavity, the guide member is slidably installed in the guide cavity, the third distance sensor is installed in the shell, at least a portion of the guide member is located outside the shell, the rolling member is installed at one end of the guide member located outside the shell, the third distance sensor faces the guide member, and a second spring is installed between the guide member and the third distance sensor.

[0013] Furthermore, the number of the rolling members is three, and the three rolling members respectively abut the upper, middle and lower parts of the edge banding strip. The number of the guide members and the third distance sensors is correspondingly three. The guide members are provided with guide blocks and guide grooves. The guide blocks and guide grooves of two adjacent guide members are slidably connected, and the inner wall of the shell is provided with corresponding guide blocks and guide grooves.

[0014] Furthermore, the side surface of the guide block is a curved surface, and the curved surface of the guide block forms two first contact points and one second contact point, the first contact points abut against the inner end surface of the guide groove, and the two second contact points abut against two inner side surfaces of the guide groove.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention can measure the width and thickness of the extruded edge banding strip in real time through a width metering device and a thickness metering device. The average volume of the edge banding strip per meter can be calculated by recording the width and thickness of the edge banding strip per meter. The weight of the edge banding strip per meter can be calculated in combination with the density of the edge banding strip. The weight can be compared with the meter weight set by the meter weight device, the weight of the feed can be adjusted, and the meter weight error and abnormal situation can be eliminated.

[0017] 2. In the present invention, two meter wheels are used to resist the fluctuation of the narrow side of the edge banding, and the first distance sensor and the second distance sensor respectively measure the width of the edge banding, providing feedback information of the width of the edge banding for the meter weight equipment, and being able to calculate the average width and fluctuation of the edge banding per meter, and being able to feedback abnormalities and handle them in time.

[0018] 3. The thickness measuring device of the present invention respectively contacts multiple parts of the edge banding strip through multiple rolling elements, and can perform fluctuating measurements on multiple points of the edge banding strip, so that the thickness measurement of the edge banding strip is more accurate and the feedback information is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of this embodiment.

[0020] Figure 2 It is a partial side view of this embodiment.

[0021] Figure 3 Schematic diagram of the width measuring device in this embodiment.

[0022] Figure 4 Schematic diagram of a thickness measuring device in this embodiment.

[0023] Figure 5 It is a cross-sectional view of the thickness measuring component in this embodiment.

[0024] Figure 6 It is a connection cross-sectional view of two guide members in this embodiment.

[0025] Figure 7 for Figure 3 An enlarged view of point A in the middle.

[0026] Reference numerals: 1, extruder; 11, extrusion port; 12, edge banding strip; 2, meter weight device; 3, width metering device; 31, first metering component; 311, first distance sensor; 3111, launching point; 32, second metering component; 321, second distance sensor; 3211, receiving surface; 33, meter wheel; 34, mounting bracket; 35, driving device; 36, movable frame; 361, first baffle; 37, connecting frame; 371, second baffle; 372, connecting rod ; 38. first spring; 39. connecting plate; 391. limit groove; 4. thickness measuring device; 41. thickness measuring assembly; 411. rolling element; 412. guide element; 4121. guide block; 4122. guide groove; 4123. first contact point; 4124. second contact point; 4125. third contact point; 4126. fourth contact point; 413. shell; 4131. guide cavity; 414. third distance sensor; 415. second spring; 42. mounting rail. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in this embodiment to clearly and completely describe the technical solution in this embodiment. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] like Figure 1 , Figure 2The present embodiment discloses an edge banding extrusion metering control device, comprising an extruder 1, a meter weight device 2, a width metering device 3, and a thickness metering device 4. The meter weight device 2 feeds the extruder 1, and the extruder 1, the meter weight device 2, the width metering device 3, and the thickness metering device 4 are controlled by a controller. The extruder 1 comprises an extrusion port 11, and the extrusion port 11 extrude an edge banding 12. After the edge banding 12 is extruded, it is pulled and transmitted by a traction roller at the rear end, and can be continuously extruded outward. The edge banding 12 comprises two narrow sides and two wide sides. The distance between the two narrow sides is the width of the edge banding 12, and the distance between the two wide sides is the thickness of the edge banding 12.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown, the width metering device 3 and the thickness metering device 4 are installed on the extruder 1. The extruder 1 is provided with one end of the extrusion port 11. The width metering device 3 includes a first metering component 31 and a second metering component 32. The first metering component 31 and the second metering component 32 are symmetrically distributed with the edge banding strip 12 as the central axis. The first metering component 31 and the second metering component 32 both include a meter wheel 33, a mounting bracket 34, a driving device 35, a movable frame 36, and a connecting frame 37. The mounting bracket 34 is fixedly installed on the extruder 1, the movable frame 36 is installed on the mounting bracket 34, and the driving device 35 is installed on the mounting bracket 34. The driving device 35 drives the movable frame 36 to move up and down along the mounting bracket 34. A vertical guide is provided between the movable frame 36 and the mounting bracket 34. The driving device 35 is a linear driving mechanism driven by a motor. The two meter wheels 33 can approach or move away from each other, and can adjust a suitable distance according to the width of the edge banding strip 12 to prevent the meter wheel 33 from exerting too much pressure on the edge banding strip 12.

[0030] One end of the connecting frame 37 is rotatably mounted on the movable frame 36, and a first spring 38 is installed between the movable frame 36 and the connecting frame 37. The first spring 38 can support the connecting frame 37. The upper and lower ends of the movable frame 36 are both provided with first baffles 361, and an installation space is formed between the two first baffles 361. The connecting frame 37 is partially located in the installation space. One end of the connecting frame 37 is rotatably mounted in the installation space, that is, one end of the connecting frame 37 is hingedly connected to the movable frame 36, and the side of the connecting frame 37 facing the two first baffles 361 is provided with a second baffle 371, and the first spring 38 is installed between the first baffles 361 and the second baffle 371 opposite to each other. The two first springs 38 The connecting frame 37 can be supported so that the connecting frame 37 is maintained in the middle position of the installation space, and the connecting frame 37 will not contact the two first baffles 361, so that the meter wheel 33 installed on the connecting frame 37 can move up and down with the fluctuation of the narrow side of the edge banding strip 12. For the first metering component 31, the supporting capacity of the first spring 38 below the connecting frame 37 of the first metering component 31 is greater than the supporting capacity of the first spring 38 above the connecting frame 37, so that the connecting frame 37 of the first metering component 31 remains balanced and will not sag excessively to compress the edge banding strip 12. Similarly, the two first springs 38 of the second metering component 32 are also the same.

[0031] The other end of the connecting frame 37 is bent toward the edge banding strip 12, and the meter wheel 33 is rotatably installed on one end of the connecting frame 37 close to the edge banding strip 12. The two meter wheels 33 can respectively press against the two narrow sides of the edge banding strip 12 from the upper and lower directions. The meter wheel 33 can rotate with the extrusion and traction of the edge banding strip 12, and can record the extruded length of the edge banding strip 12, and provide feedback information of the number of meters for the meter weight device 2.

[0032] The first distance sensor 311 is installed on the connecting frame 37 of the first metering component 31, and the second distance sensor 321 is installed on the connecting frame 37 of the second metering component 32. When the two meter wheels 33 of the first metering component 31 and the second metering component 32 fluctuate on the narrow side of the edge banding 12, the connecting frame 37 will rotate, and a lateral position deviation will appear in the horizontal direction between the first distance sensor 311 and the second distance sensor 321. The first distance sensor 311 is provided with a transmitting point 3111, and the second distance sensor 321 is provided with a receiving surface 3211. The transmitting point 3111 and the receiving surface 3211 are arranged in opposite directions. The first distance sensor 311 and the second distance sensor 321 measure the width of the edge banding 12 correspondingly, provide feedback information of the width of the edge banding 12 for the meter weight device 2, can calculate the average value and fluctuation of the width of the edge banding 12 per meter, and can timely feedback abnormalities and handle them.

[0033] The width metering device 3 includes a connecting plate 39, a first distance sensor 311 is rotatably mounted on the connecting frame 37 of the first metering component 31 through a connecting rod 372, and a second distance sensor 321 is rotatably mounted on the connecting frame 37 of the second metering component 32 through a connecting rod 372. One end of the connecting rod 372 passes through the connecting frame 37, and the connecting rod 372 passes through the connecting frame 37 and is connected by a bearing. The connecting plate 39 is provided with a limiting groove 391, and the other end of the connecting rod 372 is slidably mounted in the limiting groove 391. One end of the two connecting rods 372 slidably mounted in the limiting groove 391 can be close to or away from each other, and the limiting groove 391 extends in a straight line so that the limiting groove 391 can be moved closer to or away from each other. The extension direction of the groove 391 is consistent with the direction of the first distance sensor 311 toward the second distance sensor 321. In this way, even if the two meter wheels 33 fluctuate on the narrow side of the edge banding 12, the emitting point 3111 always falls within the horizontal projection range of the receiving surface 3211, and the width measurement of the edge banding 12 is more accurate. More preferably, the emitting point 3111 is flush with the lower end of the first metering component 31, and the receiving surface 321 is flush with the upper end of the second metering component 32. The second distance sensor 321 between the first distance sensor 311 can be set to measure the real-time width of the edge banding 12, and can also record the fluctuation difference of the narrow side of the edge banding 12.

[0034] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, since there is cooling water on the surface of the edge banding strip 12 when it is just stretched out, directly using a distance measuring device for measurement is likely to cause measurement failure and errors. The thickness measuring device 4 includes two thickness measuring components 41 and a mounting guide rail 42. The two thickness measuring components 41 are installed on the mounting guide rail 42. The distance between the two thickness measuring components 41 can be adjusted according to the thickness of the edge banding strip 12 to provide a suitable pressure for the rolling element 411. The two thickness measuring components 41 are respectively located on both sides of the edge banding strip 12. Each thickness measuring component 41 includes a shell 413, three rolling elements 411, and three guide elements 413. 2. Three third distance sensors 414. The rolling element 411 can be a roller, a ball, etc. The rolling element 411 abuts against the wide side of the edge banding 12. The rolling element 411 can contact the edge banding 12 and can roll to reduce the friction on the edge banding 12. The three rolling elements 411 respectively abut the upper, middle and lower parts of the edge banding 12, and can perform fluctuation measurement on three points of the edge banding 12, so that the measurement of the edge banding 12 is more accurate and the feedback information is more comprehensive. Of course, the more the number of rolling elements 411, the more accurate the data obtained. The accuracy requirement of the edge banding 12 is not very high, and the side measurement of three points is sufficient.

[0035] The housing 413 is provided with a guide cavity 4131, the guide member 412 is slidably mounted in the guide cavity 4131, the third distance sensor 414 is mounted on the housing 413, at least a portion of the guide member 412 is located outside the housing 413, the rolling member 411 is mounted on one end of the guide member 412 located outside the housing 413, the third distance sensor 414 faces the guide member 412, the rolling member 411 can approach or move away from the third distance sensor 414, and the third distance sensor 414 measures the expansion and contraction change of the rolling member 411, that is, the third distance sensor 414 can sense the expansion and contraction change of the rolling member 411 with respect to the guide member 412. 2, and then calculate the fluctuation and thickness change of the wide side of the edge banding strip 12. A second spring 415 is installed between the guide member 412 and the third distance sensor 414. The second spring 415 can provide pressure for the rolling member 411 to press against the edge banding strip 12. By recording the width and thickness of the edge banding strip 12 per meter, the average volume of the edge banding strip 12 per meter can be calculated. Combined with the density of the edge banding strip 12, the weight of the edge banding strip 12 per meter can be calculated, which can be compared with the meter weight set by the meter weight device 2, so as to adjust the weight of the feed and eliminate meter weight errors and abnormal situations.

[0036] The two adjacent guide members 412 are also slidably connected. The guide members 412 are provided with guide blocks 4121 and guide grooves 4122. The guide blocks 4121 and guide grooves 4122 of the two adjacent guide members 412 are slidably connected. The inner wall of the shell 413 is provided with corresponding guide blocks 4121 and guide grooves 4122. The two guide members 412 at both ends are also slidably connected with the inner wall of the shell 413. The side surface of the guide block 4121 is a curved surface. The curved surface of the guide block 4121 forms two first contact points 4123 and one second contact point 4124. The first contact point 4123 abuts against the inner end surface of the guide groove 4122, and the two second contact points 4124 are formed. The contact point 4124 abuts against the two inner side surfaces of the guide groove 4122, and the two side walls of the guide member 412 are also arc-shaped, forming a third contact point 4125 in contact with the shell 413. The two end surfaces on the outer side of the guide groove 4122 are arc-shaped, and form two fourth contact points 4126. The contact of each contact point formed by each arc surface makes the contact between the two surfaces become a line, which can reduce the sliding friction between the guide block 4121 and the guide groove 4122 without reducing the sliding stability. The guide groove 4122 and the guide cavity 4131 are filled with grease to minimize the sliding friction and minimize the error of thickness measurement.

[0037] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An edge banding extrusion metering control device, characterized in that: The invention comprises an extruder (1), a meter weight device (2), a width metering device (3), and a thickness metering device (4), wherein the meter weight device (2) supplies material to the extruder (1), the extruder (1) comprises an extrusion port (11), the extrusion port (11) extrude an edge banding strip (12), the width metering device (3) and the thickness metering device (4) are installed on the extruder (1), the extruder (1) is provided with one end of the extrusion port (11), the width metering device (3) comprises a first metering component (31) and a second metering component (32), the first metering component (31) and the second metering component (32) are both provided with a connecting frame (37) and a metering wheel (33), the metering wheel (33) is rotatably installed on the connecting frame (37), the two metering wheels (33) respectively abut against two narrow sides of the edge banding strip (12), the first metering component (31) The connecting frame (37) is provided with a first distance sensor (311); the connecting frame (37) of the second metering component (32) is provided with a second distance sensor (321); the first distance sensor (311) and the second distance sensor (321) respectively measure the width of the edge banding strip (12); the thickness metering device (4) comprises two thickness metering components (41); the two thickness metering components (41) are respectively located on two sides of the edge banding strip (12); each thickness metering component (41) comprises at least one rolling element (411) and at least one third distance sensor (414); the rolling element (411) abuts against the wide side surface of the edge banding strip (12); the rolling element (411) can approach or move away from the third distance sensor (414); the third distance sensor (414) measures the expansion and contraction change of the rolling element (411).

2. The edge banding extrusion metering control device according to claim 1, characterized in that: The first metering component (31) and the second metering component (32) both comprise a mounting bracket (34) and a movable bracket (36); the mounting bracket (34) is fixedly mounted on the extruder (1); the movable bracket (36) is mounted on the mounting bracket (34); one end of the connecting bracket (37) is rotatably mounted on the movable bracket (36); a first spring (38) is installed between the movable bracket (36) and the connecting bracket (37); the first spring (38) is capable of supporting the connecting bracket (37); the other end of the connecting bracket (37) is bent toward the edge banding strip (12); and the meter wheel (33) is mounted on one end of the connecting bracket (37) close to the edge banding strip (12).

3. The edge banding extrusion metering control device according to claim 2, characterized in that: The upper and lower ends of the movable frame (36) are both provided with a first baffle (361), an installation space is formed between the two first baffles (361), the connecting frame (37) is partially located in the installation space, one end of the connecting frame (37) is rotatably installed in the installation space, and the side of the connecting frame (37) facing the two first baffles (361) is provided with a second baffle (371), and a first spring (38) is installed between the first baffle (361) and the second baffle (371) opposite to each other.

4. The edge banding extrusion metering control device according to claim 2, characterized in that: The first metering assembly (31) and the second metering assembly (32) both comprise a driving device (35), wherein the driving device (35) is mounted on the mounting bracket (34), and the driving device (35) drives the movable frame (36) to move up and down along the mounting bracket (34), so that the two meter wheels (33) can move closer to or farther from each other.

5. The edge banding extrusion metering control device according to claim 1, characterized in that: One of the first distance sensor (311) and the second distance sensor (321) is provided with a transmitting point (3111), and one of the first distance sensor (311) and the second distance sensor (321) is provided with a receiving surface (3211), and the transmitting point (3111) always falls within the horizontal projection range of the receiving surface (3211).

6. The edge banding extrusion metering control device according to claim 5, characterized in that: The width measuring device (3) comprises a connecting plate (39), the first distance sensor (311) is rotatably mounted on the connecting frame (37) of the first measuring component (31) via a connecting rod (372), the second distance sensor (321) is rotatably mounted on the connecting frame (37) of the second measuring component (32) via a connecting rod (372), one end of the connecting rod (372) passes through the connecting frame (37), the connecting plate (39) is provided with a limiting groove (391), the other end of the connecting rod (372) is slidably mounted on the limiting groove (391), and the limiting groove (391) extends in a straight line direction.

7. The edge banding extrusion metering control device according to claim 5, characterized in that: The emitting point (3111) is located at the first distance sensor (311), the receiving surface (3211) is located at the second distance sensor (321), the emitting point (3111) is flush with the lower end of the first metering component (31), and the receiving surface (3211) is flush with the upper end of the second metering component (32).

8. The edge banding extrusion metering control device according to claim 1, characterized in that: The thickness measuring assembly (41) comprises a shell (413) and a guide member (412); the shell (413) is provided with a guide cavity (4131); the guide member (412) is slidably mounted in the guide cavity (4131); the third distance sensor (414) is mounted on the shell (413); at least a portion of the guide member (412) is located outside the shell (413); the rolling member (411) is mounted on one end of the guide member (412) located outside the shell (413); the third distance sensor (414) faces the guide member (412); and a second spring (415) is mounted between the guide member (412) and the third distance sensor (414).

9. The edge banding extrusion metering control device according to claim 8, characterized in that: The number of the rolling members (411) is three, and the three rolling members (411) respectively abut against the upper, middle and lower parts of the edge banding strip (12). The number of the guide members (412) and the third distance sensor (414) is correspondingly three. The guide member (412) is provided with a guide block (4121) and a guide groove (4122). The guide blocks (4121) and the guide grooves (4122) of two adjacent guide members (412) are slidably connected, and the inner wall of the shell (413) is provided with corresponding guide blocks (4121) and guide grooves (4122).

10. The edge banding extrusion metering control device according to claim 9, characterized in that: The side surface of the guide block (4121) is a curved surface, and the curved surface of the guide block (4121) forms two first contact points (4123) and one second contact point (4124), the first contact point (4123) abuts against the inner end surface of the guide groove (4122), and the two second contact points (4124) abut against the two inner side surfaces of the guide groove (4122).

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