Assembly equipment for label scale production

Abstract

The invention discloses assembly equipment for label scale production, and relates to the technical field of label scale production, the assembly equipment comprises a back plate and a lifting rotation assembly, and a guide rail is fixed on one side of the back plate. In the using process, the vacuum suction pipes are arranged at equal intervals in the axial direction of the rotating shaft, synchronous taking of multiple resistance strain gauge materials can be achieved at the same time, after the vacuum suction pipes complete taking, the lifting plate is pulled by the air cylinder to descend, and the rotating shaft intermittently rotates according to the specified angle in the lifting process; in the first stage, adsorption and material taking of a resistance strain gauge material by a vacuum suction pipe are completed, in the second stage, an adhesive is attached to the lower surface of the resistance strain gauge material, and in the third stage, the glued face of the resistance strain gauge is placed above a sensor elastomer tool and tightly combined with the sensor elastomer tool through pressing. The three stages are controlled by an air cylinder and are sequentially completed step by step, high integration of the three working procedures of material taking, gluing and pressing is achieved, the working procedure design is reasonable, and the structure is compact and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of label scale production, in particular to an assembly device for label scale production. Background Art

[0002] The label scale is an ordinary electronic scale with a built-in portable barcode reader. The product's measurement information printing format is set in advance, and the barcode paper can be clearly printed when in use. When an object is placed on the scale pan, pressure is applied to the sensor, which deforms, thereby changing the impedance. At the same time, the excitation voltage changes, and a changing analog signal is output. The signal is amplified by the amplifier circuit and output to the analog-to-digital converter, which is converted into a digital signal for easy processing and output to the CPU for operation control. The CPU outputs this result to the display according to the keyboard command and the program, and also outputs it to the portable printer to print the barcode label. Electronic barcode scales are mainly used in supermarkets for weighing and printing barcodes.

[0003] A weighing sensor usually includes several groups of strain gauges and a sensor elastic body. When the weighing sensor is subjected to external force, the elastic body will produce corresponding deformation, causing the strain gauge attached to its surface to also deform, thereby changing its resistance value. This change in resistance value is then converted into an electrical signal, thereby realizing the measurement of the weight of the object. In the prior art, a patch assembly device is usually used to attach the strain gauge to the sensor elastic body. First, the strain gauge is positioned by an adsorption mechanism, and then an adhesive is attached to the lower surface of the strain gauge. Finally, the strain gauge is transferred and attached to the sensor elastic body. However, in actual application, there is a common problem of low installation efficiency.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an assembly equipment for label scale production is proposed. Summary of the invention

[0005] The object of the present invention is to provide an assembly device for producing a label scale to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an assembly device for producing label scales, comprising a back plate and a lifting and rotating assembly, a guide rail is fixed on one side of the back plate, and a limiting groove is provided on the other side of the back plate, and several tooth columns are radially arranged in the middle of the limiting groove and the opposite surface of the guide rail, the lifting and rotating assembly comprises a cylinder, a lifting plate, a slider, an axial hole, a rotating shaft, a guard plate and a gear, the cylinder is fixed to the mounting plate at the bottom edge of the back plate, and the lifting plate is fixedly connected to the output end of the cylinder, a slider is fixed to the middle of the back side of the lifting plate, and the slider is slidably matched with the guide rail, an axial hole is penetrated through the end of the lifting plate, and a rotating shaft is rotatably installed in the hole in the axial hole through a bearing, the tail of the rotating shaft is limitedly matched with the limiting groove, and a guard plate is fixed to the outer edge of the rotating shaft, a gear is coaxially connected to the back side of the rotating shaft, and the circumferential tooth shape of the gear is meshed with the tooth column.

[0007] Furthermore, the rotating shaft is externally connected to several air suction and pressure components, and the air suction and pressure components include a vacuum pipe, an air nozzle and a key convex. The side of the vacuum pipe is threadedly connected to the negative pressure interface of the vacuum generator through the air nozzle, and two key convexes are fixed on the outer edge of the vacuum pipe.

[0008] Furthermore, the air suction downward pressure assembly also includes a fixed end ring and a spring. A fixed end ring is fixed in the middle of the vacuum pipe, and two springs are connected to the bottom of the fixed end ring.

[0009] Furthermore, the air suction downward pressure assembly also includes a movable pressure ring and a key slot, the end of the spring away from the fixed end ring is elastically connected to the movable pressure ring, and the inner wall of the movable pressure ring is provided with a key slot that slidably cooperates with the key protrusion.

[0010] Furthermore, a resistance strain gauge storage box is fixed on the top of the back plate, and the resistance strain gauge storage box is provided with a storage groove corresponding to the vacuum suction pipe.

[0011] Furthermore, spring plate bottom supports are symmetrically arranged on both sides of the bottom opening of the storage tank, and a spreading brush is arranged adjacent to the bottom of the spring plate bottom support.

[0012] Furthermore, several roller glue delivery assemblies corresponding to the vacuum suction pipes are fixed on one side of the back plate, and the roller glue delivery assembly includes an insulation shell, a heating sleeve and a glue inlet pipe. The inner wall of the insulation shell cavity is provided with a heating sleeve, and the top of the insulation shell is connected to the glue inlet pipe.

[0013] Furthermore, the roller glue discharging assembly also includes a glue discharging pipe and a wing plate. The bottom of the heat-insulating shell is connected to the glue discharging pipe, and wing plates are fixed on both sides of the opening at the end of the glue discharging pipe.

[0014] Furthermore, the roller glue discharging assembly also includes a slide groove and a rubber roller, the wing plates on both sides are symmetrically provided with slide grooves, and the rubber rollers are rotatably installed on the opposite surfaces of the wing plates on both sides.

[0015] Furthermore, a column is fixed on the other side of the back plate, and the root of the column is fixed to the side of the base plate, a conveyor belt is fixed on the top of the base plate, and the conveyor belt is directly below the axis of the rotating shaft, and a sensor elastomer tooling is supported on the top of the conveyor belt, and the sensor elastomer tooling is loaded with a sensor elastomer body bonded and fixed to the resistance strain gauge.

[0016] The present invention provides an assembly device for label scale production, which has the following beneficial effects:

[0017] 1. During the use of the present invention, when the lifting plate is at the top in the first stage, the vacuum pipettes in the present application are arranged at equal intervals along the axial direction of the rotating shaft, and the synchronous material collection of multiple resistance strain gauges can be realized at the same time. After the vacuum pipette completes the material collection, the lifting plate is pulled down by the cylinder, and the rotating shaft rotates intermittently at a specified angle during the lifting process, and the vacuum pipette completes the adsorption and material collection of the resistance strain gauge material in the first stage, and the adhesive is attached to the lower surface of the resistance strain gauge material in the second stage. In the third stage, the glue-coated surface of the resistance strain gauge is placed above the sensor elastic body tooling and the two are tightly combined by pressing. The above three stages are all controlled by a cylinder and completed in steps, realizing the high integration of the three processes of material collection, glue coating and pressing. The process design is reasonable, the structure is compact and efficient, and the production efficiency is effectively improved through the multi-station structural design;

[0018] 2. During the use of the present invention, when the lifting plate is in the second stage in the middle, the gear drives the vacuum pipette array to flip clockwise by 90 degrees through the rotating shaft. During the flipping process, the resistance strain gauge material adsorbed by the end of the vacuum pipette contacts the outer edge of the rubber roller, and the inner side of the rubber roller corresponds to the arc-shaped glue outlet channel of the rubber outlet pipe at the bottom of the insulation shell. During the rotation of the rubber roller, the glue is evenly applied to the surface of the rubber roller and transferred to the lower surface of the resistance strain gauge material. The glue coating equipment of the present application is adapted to the three-stage rotation process of the rotating shaft and is designed as a roller glue coating method. During the rotation of the rotating shaft, adhesive can be attached to the lower surface of the resistance strain gauge material to improve the glue coating efficiency;

[0019] 3. During the use of the present invention, when the lifting plate is at the third stage at the bottom, the gear drives the vacuum tube array to flip ninety degrees clockwise through the rotating shaft again, so that the resistance strain gauge material adsorbed by the vacuum tube is above the sensor elastomer tooling on the conveyor belt. At this time, the gear is out of contact with the tooth column, and in the subsequent descent process, the rotating shaft no longer flips, but directly covers the resistance strain gauge material on top of the sensor elastomer material. In actual use, although the movable pressure ring has been in contact with the upper surface of the material, in the continuous descent process of the lifting plate, the movable pressure ring overcomes the spring force and shrinks at the tail end of the vacuum tube. The elastic force of the spring makes the glue on the lower surface of the resistance strain gauge material closely contact with the sensor elastomer material, thereby activating the glue to enhance the bonding effect, shorten the bonding time and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the overall perspective of the device of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the device of the present invention from a second perspective;

[0022] Figure 3 This is a schematic diagram of the structure of the lifting and rotating assembly of the present invention;

[0023] Figure 4 This is a schematic diagram of the explosion structure of the air suction and pressure assembly of the present invention;

[0024] Figure 5 It is a schematic cross-sectional view of the structure of the air suction and pressure down assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the resistance strain gauge storage box of the present invention;

[0026] Figure 7 It is a schematic cross-sectional structure diagram of the roller glue discharging assembly of the present invention.

[0027] In the figure: 1, back plate; 2, guide rail; 3, limit groove; 4, tooth column; 5, lifting and rotating assembly; 501, cylinder; 502, lifting plate; 503, slider; 504, shaft hole; 505, rotating shaft; 506, guard plate; 507, gear; 6, suction and pressing assembly; 601, vacuum suction tube; 602, air nozzle; 603, key convex; 604, fixed end ring; 605, spring; 606, movable pressure ring ; 607, keyway; 7, resistance strain gauge storage box; 8, storage tank; 9, spring base; 10, sheeting brush; 11, roller glue discharging assembly; 1101, insulation shell; 1102, heating sleeve; 1103, glue inlet pipe; 1104, glue outlet pipe; 1105, wing plate; 1106, slide; 1107, rubber roller; 12, column; 13, bottom plate; 14, conveyor belt; 15, sensor elastomer tooling. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0029] See also Figures 1 to 3The present invention provides a technical solution: an assembly device for label scale production, comprising a back plate 1 and a lifting and rotating assembly 5, a guide rail 2 is fixed on one side of the back plate 1, and a limiting groove 3 is provided on the other side of the back plate 1, and a plurality of tooth columns 4 are radially arranged in the middle of the surface opposite to the limiting groove 3 and the guide rail 2, the lifting and rotating assembly 5 comprises a cylinder 501, a lifting plate 502, a slider 503, an axis hole 504, a rotating shaft 505, a guard plate 506 and a gear 507, the cylinder 501 is fixed to the mounting plate at the bottom edge of the back plate 1, and The output end of the cylinder 501 is fixedly connected with a lifting plate 502, a slider 503 is fixed to the middle of the back of the lifting plate 502, and the slider 503 is slidably matched with the guide rail 2, and an axial hole 504 is penetrated through the end of the lifting plate 502, and a rotating shaft 505 is rotatably installed inside the hole in the axial hole 504 through a bearing, the tail of the rotating shaft 505 is limitedly matched with the limiting groove 3, and a guard plate 506 is fixed to the outer edge of the rotating shaft 505, and a gear 507 is coaxially connected to the back of the rotating shaft 505, and the circumferential tooth shape of the gear 507 is meshed with the gear column 4;

[0030] The specific operation is as follows: the air nozzle 602 on the side of the vacuum suction pipe 601 is threadedly connected to the negative pressure interface of the vacuum generator through a pipeline, and the lifting plate 502 is lifted by the guide rail 2 on the side of the back plate 1 through the back slider 503 under the push of the cylinder 501. When the lifting plate 502 is at the first stage at the top, after rising to the top, suction is generated inside the vacuum suction pipe 601 and the resistance strain gauge material at the bottom of the storage tank 8 is sucked. In the present application, the vacuum suction pipe 601 is arranged at equal intervals along the axial direction of the rotating shaft 505, and the synchronous material extraction of multiple resistance strain gauge materials can be realized at the same time. After the vacuum suction pipe 601 completes the material extraction, the lifting plate 502 is pulled down by the cylinder 501, and the rotating shaft 505 is rotatably installed in the shaft hole 504 at the end of the lifting plate 502 through the bearing. The coaxial gear 507 on the back of the rotating shaft 505 engages with the tooth column 4 in the middle of the back plate 1 during the descent process, so that the rotating shaft 505 rotates intermittently at a specified angle during the lifting process;

[0031] See also Figures 4 to 5 , the rotating shaft 505 is externally connected with several air suction and pressure components 6, the air suction and pressure component 6 includes a vacuum pipe 601, an air nozzle 602 and a key convex 603, the side of the vacuum pipe 601 is threadedly connected to the negative pressure interface of the vacuum generator through the air nozzle 602, and two key convex 603 are fixed on the outer edge of the vacuum pipe 601, the air suction and pressure component 6 also includes a fixed end ring 604 and a spring 605, a fixed end ring 604 is fixed in the middle of the vacuum pipe 601, and two springs 605 are connected to the bottom of the fixed end ring 604, the air suction and pressure component 6 also includes a movable pressure ring 606 and a key groove 607, the end of the spring 605 away from the fixed end ring 604 is elastically connected to the movable pressure ring 606, and the inner wall of the movable pressure ring 606 is provided with a key groove 607 that slides with the key convex 603;

[0032] The specific operation is as follows. When the lifting plate 502 is at the third stage at the bottom, the gear 507 drives the vacuum suction tube 601 array to turn ninety degrees clockwise again through the rotating shaft 505, so that the resistance strain gauge material adsorbed by the vacuum suction tube 601 is above the sensor elastic body tooling 15 on the conveyor belt 14. At this time, the gear 507 is out of contact with the tooth column 4. In the subsequent descent process, the rotating shaft 505 is no longer turned, but the resistance strain gauge material is directly covered on the top of the sensor elastic body material. In actual use, although the movable pressure ring 606 has been in contact with the upper surface of the material, in the continuous descent process of the lifting plate 502, the movable pressure ring 606 overcomes the elastic force of the spring 605 and contracts at the tail end of the vacuum suction tube 601. The elastic force of the spring 605 makes the glue on the lower surface of the resistance strain gauge material closely contact with the sensor elastic body material, thereby activating the glue to enhance the bonding effect, shorten the bonding time and improve work efficiency.

[0033] See also Figure 6 to Figure 7 A resistance strain gauge storage box 7 is fixed to the top of the back plate 1, and the resistance strain gauge storage box 7 is provided with a storage tank 8 corresponding to the vacuum suction pipe 601, and spring plate bottom brackets 9 are symmetrically arranged on both sides of the bottom opening of the storage tank 8, and a spreading brush 10 is arranged adjacent to the bottom of the spring plate bottom bracket 9, and several roller glue discharging assemblies 11 corresponding to the vacuum suction pipe 601 are fixed to one side of the back plate 1, and the roller glue discharging assembly 11 includes a heat-insulating shell 1101, a heating sleeve 1102 and a glue inlet pipe 1103, the inner wall of the heat-insulating shell 1101 cavity is provided with a heating sleeve 1102, and the top of the heat-insulating shell 1101 is connected with a glue inlet pipe 1103, the roller glue discharging assembly 11 also includes a glue outlet pipe 1104 and a wing plate 1105, the heat-insulating shell 110 The bottom of the back plate 1 is connected with a glue outlet pipe 1104, and wing plates 1105 are fixed on both sides of the opening of the end of the glue outlet pipe 1104. The roller glue outlet assembly 11 also includes a slide groove 1106 and a rubber roller 1107. The wing plates 1105 on both sides are symmetrically provided with slide grooves 1106, and the rubber rollers 1107 are rotatably installed on the opposite surfaces of the wing plates 1105 on both sides. A column 12 is fixed on the other side of the back plate 1, and the root of the column 12 is fixed to the side of the bottom plate 13. A conveyor belt 14 is fixed on the top of the bottom plate 13, and the conveyor belt 14 is directly below the axis of the rotating shaft 505. The top of the conveyor belt 14 is supported by a sensor elastic body tooling 15, and the sensor elastic body tooling 15 is loaded with a sensor elastic body body bonded and fixed to the resistance strain gauge;

[0034] The specific operation is as follows: when the lifting plate 502 is in the second stage in the middle, the gear 507 drives the vacuum pipette 601 array to flip ninety degrees clockwise through the rotating shaft 505. During the flipping process, the resistance strain gauge material adsorbed by the end of the vacuum pipette 601 contacts the outer edge of the rubber roller 1107. The inner side of the rubber roller 1107 corresponds to the arc-shaped glue outlet channel of the glue outlet pipe 1104 at the bottom of the insulation shell 1101. During the rotation of the rubber roller 1107, the glue is evenly spread on the surface of the rubber roller 1107 and transferred to the lower surface of the resistance strain gauge material. On the one hand, the present application arranges a heating sleeve 1102 on the inner wall of the insulation shell 1101 to keep the glue flowing to prevent condensation. On the other hand, the rubber roller The shafts on both sides of 1107 are movably arranged in the slide groove 1106 opened in the wing plate 1105. During the upward resetting process of the vacuum tube 601, the protective plate 506 can squeeze the rubber roller 1107 to prevent the rubber roller 1107 from contacting the unloaded vacuum tube 601 and causing contamination. During the downward working process of the vacuum tube 601, the resistance strain gauge material adsorbed at the end of the vacuum tube 601 contacts the rubber roller 1107 before the protective plate 506 to complete the gluing process. The gluing equipment of the present application is adapted to the three-stage rotation process of the rotating shaft 505 and is designed as a roller gluing method. During the rotation of the rotating shaft 505, adhesive can be attached to the lower surface of the resistance strain gauge material to improve the gluing efficiency.

[0035] In summary, when the assembly equipment for the production of the label scale is used, the air nozzle 602 on the side of the vacuum pipette 601 is threadedly connected to the negative pressure interface of the vacuum generator through a pipeline, and the lifting plate 502 is lifted by the guide rail 2 located on the side of the back plate 1 through the back slider 503 under the push of the cylinder 501. When the lifting plate 502 is at the first stage at the top, after rising to the top, suction is generated inside the vacuum pipette 601 and the resistance strain gauge material at the bottom of the storage tank 8 is sucked. In the present application, the vacuum pipette 601 is arranged at equal intervals along the axial direction of the rotating shaft 505, and the synchronous material extraction of multiple resistance strain gauge materials can be realized at the same time. After the vacuum pipette 601 completes the material extraction, the lifting plate 502 is pulled down by the cylinder 501, and the shaft hole 504 at the end of the lifting plate 502 rotates through the bearing A rotating shaft 505 is installed, and a coaxial gear 507 on the back of the rotating shaft 505 meshes with the tooth column 4 in the middle of the back plate 1 during the descent process, so that the rotating shaft 505 rotates intermittently at a specified angle during the lifting process. When the lifting plate 502 is in the second stage in the middle, the gear 507 drives the vacuum suction tube 601 array to flip clockwise by 90 degrees through the rotating shaft 505. During the flipping process, the resistance strain gauge material adsorbed at the end of the vacuum suction tube 601 contacts the outer edge of the rubber roller 1107, and the inner side of the rubber roller 1107 corresponds to the arc-shaped glue outlet channel of the glue outlet pipe 1104 at the bottom of the insulation shell 1101. During the rotation of the rubber roller 1107, the glue is evenly spread on the surface of the rubber roller 1107 and transferred to the lower surface of the resistance strain gauge material. On the one hand, the present application is achieved by A heating sleeve 1102 is arranged on the inner wall of the heat-insulating shell 1101 to keep the glue flowing and prevent condensation. On the other hand, the shafts on both sides of the rubber roller 1107 are movably arranged in the slide groove 1106 opened in the wing plate 1105. During the upward resetting process of the vacuum pipette 601, the rubber roller 1107 can be squeezed by the guard plate 506 to prevent the rubber roller 1107 from contacting with the unloaded vacuum pipette 601 and causing contamination. During the downward working process of the vacuum pipette 601, the resistance strain gauge material adsorbed at the end of the vacuum pipette 601 contacts the rubber roller 1107 before the guard plate 506 to complete the gluing process. The gluing equipment of the present application is adapted to the three-stage rotation process of the rotating shaft 505 and is designed as a roller gluing method. During the rotation of the rotating shaft 505, the resistance strain gauge material Adhesive is attached to the lower surface to improve the gluing efficiency. When the lifting plate 502 is at the third stage at the bottom, the gear 507 drives the vacuum pipette 601 array to turn ninety degrees clockwise through the rotating shaft 505 again, so that the resistance strain gauge material adsorbed by the vacuum pipette 601 is above the sensor elastic body tooling 15 on the conveyor belt 14. At this time, the gear 507 is out of contact with the tooth column 4. In the subsequent descent process, the rotating shaft 505 is no longer turned, but the resistance strain gauge material is directly covered on the top of the sensor elastic body material. In actual use, although the movable pressure ring 606 has been in contact with the upper surface of the material, in the continuous descent process of the lifting plate 502, the movable pressure ring 606 overcomes the elastic force of the spring 605 and contracts at the tail end of the vacuum pipette 601.The elastic force of the spring 605 makes the glue on the lower surface of the resistance strain gauge material closely contact with the sensor elastic material, thereby activating the glue to enhance the bonding effect, shortening the bonding time and improving the work efficiency. In the first stage, the vacuum pipette 601 completes the adsorption and material collection of the resistance strain gauge material, and in the second stage, the adhesive is attached to the lower surface of the resistance strain gauge material. In the third stage, the glue-coated surface of the resistance strain gauge is placed on the sensor elastic tooling 15 and pressed to make the two tightly combined. The above three stages are all controlled by a cylinder 501 and completed in steps, realizing the high integration of the three processes of material collection, glue coating and pressing. The process design is reasonable, the structure is compact and efficient, and the production efficiency is effectively improved through the multi-station structural design. ,

[0036] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. An assembly device for label scale production, characterized in that: The invention comprises a back plate (1) and a lifting and rotating assembly (5), wherein a guide rail (2) is fixed on one side of the back plate (1), and a limiting groove (3) is provided on the other side of the back plate (1), and a plurality of tooth columns (4) are arranged radially in the middle of the surface of the limiting groove (3) opposite to the guide rail (2), and the lifting and rotating assembly (5) comprises a cylinder (501), a lifting plate (502), a slider (503), an axial hole (504), a rotating shaft (505), a guard plate (506) and a gear (507), and the cylinder (501) is fixed to a mounting plate at the bottom edge of the back plate (1), and an output end of the cylinder (501) is fixedly connected to a mounting plate. A lifting plate (502) is connected, a slider (503) is fixed at the middle of the back of the lifting plate (502), and the slider (503) is slidably matched with the guide rail (2), an axial hole (504) is penetrated through the end of the lifting plate (502), and a rotating shaft (505) is rotatably installed inside the hole of the axial hole (504) through a bearing, the tail of the rotating shaft (505) is limitedly matched with the limiting groove (3), and a guard plate (506) is fixed to the outer edge of the rotating shaft (505), and a gear (507) is coaxially connected to the back of the rotating shaft (505), and the circumferential tooth shape of the gear (507) is meshed with the tooth column (4).

2. The assembly equipment for label scale production according to claim 1, characterized in that: The rotating shaft (505) is externally connected to several air suction and pressure components (6), and the air suction and pressure components (6) include a vacuum suction pipe (601), an air nozzle (602) and a key protrusion (603). The side of the vacuum suction pipe (601) is threadedly connected to the negative pressure interface of the vacuum generator through the air nozzle (602), and two key protrusions (603) are fixed on the outer edge of the vacuum suction pipe (601).

3. The assembly equipment for label scale production according to claim 2, characterized in that: The air suction downward pressure assembly (6) further comprises a fixed end ring (604) and a spring (605); a fixed end ring (604) is fixed at the middle of the vacuum suction pipe (601), and two springs (605) are connected to the bottom of the fixed end ring (604).

4. The assembly equipment for label scale production according to claim 3, characterized in that: The air suction downward pressure assembly (6) further comprises a movable pressure ring (606) and a key groove (607); one end of the spring (605) facing away from the fixed end ring (604) is elastically connected to the movable pressure ring (606); and the inner wall of the movable pressure ring (606) is provided with a key groove (607) which is slidably matched with the key protrusion (603).

5. The assembly equipment for label scale production according to claim 1, characterized in that: A resistance strain gauge storage box (7) is fixed to the top of the back plate (1), and the resistance strain gauge storage box (7) is provided with a storage tank (8) corresponding to the vacuum suction pipe (601).

6. The assembly equipment for label scale production according to claim 5, characterized in that: The bottom opening of the storage tank (8) is symmetrically provided with spring plate bottom brackets (9), and a separating brush (10) is adjacently provided at the bottom of the spring plate bottom bracket (9).

7. The assembly equipment for label scale production according to claim 1, characterized in that: Several roller glue discharging assemblies (11) corresponding to the vacuum suction pipe (601) are fixed on one side of the back plate (1), and the roller glue discharging assembly (11) comprises a heat-insulating shell (1101), a heating sleeve (1102) and a glue inlet pipe (1103). The inner wall of the cavity of the heat-insulating shell (1101) is provided with a heating sleeve (1102), and the top of the heat-insulating shell (1101) is connected to the glue inlet pipe (1103).

8. The assembly equipment for label scale production according to claim 7, characterized in that: The roller glue discharging assembly (11) further comprises a glue discharging pipe (1104) and a wing plate (1105); the bottom of the heat-insulating shell (1101) is connected to the glue discharging pipe (1104), and the wing plates (1105) are fixed on both sides of the opening at the end of the glue discharging pipe (1104).

9. The assembly equipment for label scale production according to claim 8, characterized in that: The roller glue discharging assembly (11) further comprises a slide groove (1106) and a rubber roller (1107), the wing plates (1105) on both sides are symmetrically provided with the slide grooves (1106), and the rubber rollers (1107) are rotatably mounted on the opposite surfaces of the wing plates (1105) on both sides.

10. The assembly equipment for label scale production according to claim 1, characterized in that: A column (12) is fixed on the other side of the back plate (1), and the root of the column (12) is fixed to the side of the bottom plate (13). A conveyor belt (14) is fixed on the top of the bottom plate (13), and the conveyor belt (14) is directly below the axis of the rotating shaft (505). A sensor elastomer tooling (15) is supported on the top of the conveyor belt (14), and the sensor elastomer tooling (15) is loaded with a sensor elastomer body bonded and fixed to the resistance strain gauge.

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