Rubber ring point glue forming device based on double cam driving

Abstract

The application discloses a rubber ring point glue forming device based on double cam driving, which comprises: a discharging mechanism, which regularly discharges equal-length rubber strips; a cutting mechanism, which is located below the discharging mechanism, and is provided with a positioning hole for the rubber strip to pass through; after the discharging mechanism completes the feeding of a rubber strip, the cutting mechanism cuts the rubber strip; a forming mechanism, which comprises a plurality of forming dies and a compression mold composed of a semicircular upper die and a semicircular lower die, the compression mold composed of the semicircular upper die and the semicircular lower die is located on the side of the rubber strip of the discharging mechanism, and the semicircular upper die and the semicircular lower die are driven to move upward and downward to the side of the forming die respectively, so that the rubber strip is pressed on the forming die to complete the forming of the rubber strip; and a point glue mechanism, which performs point glue at the interface of the rubber strip. The application can realize the automatic point glue forming of the rubber ring, has high production efficiency, and improves the product quality and consistency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rubber automation machinery, in particular to a rubber ring dispensing and forming device based on double cam driving. BACKGROUND

[0002] In the prior art, the rubber ring industry has low mechanization and automation level, and is basically made by hand, and lacks relatively unified production standards, so that the product quality is difficult to guarantee. For example, the rubber rings used in applications such as hairpins and sealing rings have a production process that can be divided into three steps: cutting, forming, and bonding, which are basically manually operated. Since the rubber strip is elastic and flexible, the position of the rubber strip after cutting is difficult to determine under natural conditions, so it is difficult to mechanically position and form. In addition, during bonding, the rubber strip needs to be manually placed on the bonding equipment (usually a dispensing machine). In this way, cutting, forming positioning, bonding, and material dropping all require manual operation. Although there are currently bonding machines for rubber strip production, the production cycle of the commonly used bonding machine is about 1.6 seconds per piece. This fast-paced feeding method makes the labor intensity of workers very high, and this semi-manual and semi-mechanical bonding method still has the disadvantages of low production efficiency, unstable quality, and poor product consistency. SUMMARY

[0003] Therefore, the present application provides a double cam driving based rubber ring dispensing and forming device for automatic production to improve production efficiency, product quality, and consistency in order to solve the technical problems of low production efficiency, unstable product quality, and poor consistency in the prior art.

[0004] The technical solution of the present application is to provide a double cam driving based rubber ring dispensing and forming device, which comprises:

[0005] an output mechanism for periodically outputting equal-length rubber strips,

[0006] a cutting mechanism located below the output mechanism, the cutting mechanism being provided with a positioning hole for the rubber strip to pass through, and after the output mechanism completes the feeding of a rubber strip, the cutting mechanism cuts the rubber strip located in the positioning hole;

[0007] a forming mechanism comprising a plurality of forming dies and a compression mold composed of a semicircular upper die and a semicircular lower die, the compression mold composed of the semicircular upper die and the semicircular lower die being located on the side of the rubber strip of the output mechanism, and after completing the feeding of a rubber strip, the forming die is conveyed to the other side of the rubber strip, and the semicircular upper die and the semicircular lower die are driven to move upward and downward to the side of the forming die, respectively, so as to press the rubber strip on the forming die to complete the forming of the rubber strip;

[0008] The dispensing mechanism dispenses glue at the joint of the rubber strip.

[0009] Optionally, the device further comprises a blowing device, which is located at the side of the molding die after the molding is completed and is in the same horizontal position as the molding die. The rubber ring on the molding die is blown off by the blowing force of the blowing device to achieve discharging.

[0010] Optionally, after the feeding of the rubber strip is completed once, the molding die and the pressing die on both sides of the rubber strip generate a pre-tightening force on the rubber strip, and then the cutting mechanism cuts the rubber strip.

[0011] Optionally, the discharging mechanism comprises a first pulley set and a second pulley set. The first pulley set is driven by the first motor to rotate the dial, which rotates continuously and intermittently drives the notch wheel, which in turn drives the second shaft to rotate intermittently. The second shaft is provided with a large friction wheel, and the third shaft is provided with a small friction wheel. The second pulley set drives the second shaft and the third shaft to rotate. The diameters of the large friction wheel and the small friction wheel are configured to have the same linear speed. The rubber strip is coiled on the storage disc, and the discharging end of the rubber strip is attached between the large friction wheel and the small friction wheel.

[0012] Optionally, the cutting mechanism comprises a second motor, an eccentric wheel, a blade, and a cutting sleeve. The output shaft of the second motor is in transmission connection with the eccentric wheel to drive the rotation of the eccentric wheel. The eccentric wheel drives the movement of the connecting rod, which is hingedly connected with the blade. The blade is sleeved in the cutting sleeve, and the last segment of the cutting sleeve is provided with a positioning hole. When the eccentric wheel rotates and drives the connecting rod, the blade moves forward and backward in the cutting sleeve to cut the rubber strip inserted in the positioning hole.

[0013] Optionally, the outer edges of the plurality of molding dies are provided with annular grooves, and the outer half edges of the upper half-round die and the lower half-round die are provided with half-round annular grooves.

[0014] Optionally, the plurality of molding dies are located on a transmission system, and the upper half-round die and the lower half-round die are respectively connected with an upper die cam push rod and a lower die cam push rod. When the transmission system drives the molding dies to move forward and touch the rubber strip, the lower die cam and the upper die cam rotate, respectively driving the upper half-round die and the lower half-round die to move through the lower die cam push rod and the upper die cam push rod.

[0015] Optionally, the dispensing mechanism comprises a dispensing head and a dispensing cylinder. The piston end of the dispensing cylinder is connected with the dispensing head. After the molding is completed, the dispensing cylinder drives the dispensing head to move to the joint to realize the dispensing operation.

[0016] With the above structure, compared with the prior art, the present application has the following advantages: the present application realizes intermittent and equal-length discharging through the discharging mechanism, and the cut rubber strip is arranged in a ring shape on the outer edge of the forming die under the action of the pressing die, the length of the rubber strip is consistent with the circumference of the forming die, and after the molding is completed, the dispensing is implemented by the dispensing mechanism, and after the dispensing is completed, the blowing is implemented by the blowing device to realize the discharging. The present application can realize the automatic dispensing and molding of the rubber ring, improve the production efficiency, and improve the product quality and consistency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic diagram of a rubber ring dispensing and molding device based on double-cam driving according to the present application;

[0018] Figure 2 FIG. 4 is a structural schematic diagram of the discharging mechanism;

[0019] Figure 3 FIG. 5 is a structural schematic diagram of the discharging mechanism and the cutting mechanism;

[0020] Figure 4 FIG. 6 is a structural schematic diagram of the cutting mechanism;

[0021] Figure 5 FIG. 7 is a structural schematic diagram of the forming mechanism (first state);

[0022] Figure 6 FIG. 8 is a structural schematic diagram of the forming mechanism (second state);

[0023] Figure 7 FIG. 9 is a structural schematic diagram of the forming mechanism (third state);

[0024] Figure 8 FIG. 10 is a structural schematic diagram of the dispensing mechanism;

[0025] Figure 9 FIG. 11 is a structural schematic diagram of the blowing device;

[0026] Figure 10 FIG. 12 is a structural schematic diagram of the discharging state.

[0027] In the diagram: 1-1: Rubber strip; 1-2: Large friction wheel; 1-3: Small friction wheel; 1-4: Storage tray; 1-5: Dial; 1-6: First motor; 1-7: First pulley group; 1-8: Second pulley group; 1-9: Grooved wheel; 2-1: Second motor; 2-2: Eccentric wheel; 2-3: Connecting rod; 2-4: Blade; 2-5: Cutting sleeve; 2-6: Positioning hole; 3-1: Semi-circular upper mold; 3-2: Semi-circular lower mold; 3-3: Forming mold; 3-4: Lower mold cam; 3-5: Upper mold cam; 3-7: Air blowing device; 3-8: Transmission system; 4-1: Upper mold cam push rod; 4-2: Lower mold cam push rod; 4-3: Rubber ring; 4-4: Dispensing head; 4-5: Dispensing cylinder; 4-6: First hinge; 4-7: Second hinge. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, the accompanying drawings are not drawn to scale precisely for illustrative purposes and are intentionally left blank.

[0030] like Figure 1 The diagram illustrates the specific structure of the rubber ring dispensing and molding device based on dual-cam drive of the present invention, including:

[0031] The discharge mechanism periodically conveys rubber strips 1-1 of equal length.

[0032] A cutting mechanism is located below the discharge mechanism. The cutting mechanism is provided with a positioning hole for the rubber strip to pass through. After the discharge mechanism completes one feeding of the rubber strip 1-1, the cutting mechanism cuts the rubber strip 1-1 located in the positioning hole 2-6.

[0033] The molding mechanism includes multiple molding dies 3-3 and a pressing die composed of a semi-circular upper die 3-1 and a semi-circular lower die 3-2. The pressing die composed of the semi-circular upper die 3-1 and the semi-circular lower die 3-2 is located on the side of the rubber strip 1-1 in the discharge mechanism. After the rubber strip 1-1 is fed once, the molding die is conveyed to the other side of the rubber strip 1-1, driving the semi-circular upper die 3-1 and the semi-circular lower die 3-2 to move up and down towards the molding die 3-3 respectively, thereby pressing the rubber strip 1-1 onto the molding die 3-2 to complete the rubber strip molding.

[0034] The dispensing mechanism applies adhesive to the joints of the rubber strips.

[0035] As shown in Figure 2 , the structure of the discharge mechanism of the present application is illustrated. The discharge mechanism comprises a first pulley set 1-7 and a second pulley set 1-8, the first pulley set 1-7 drives the dial 1-5 to rotate through the first rotating shaft under the drive of the first motor 1-6, the dial 1-5 rotates continuously and intermittently drives the notch wheel 1-9, the notch wheel 1-9 drives the second rotating shaft where it is located to rotate intermittently, the notch wheel 1-9 is installed on the second rotating shaft, the large friction wheel 1-2 is installed on the third rotating shaft, the second pulley set 1-8 drives the second rotating shaft and the third rotating shaft to rotate, the diameters of the large friction wheel 1-2 and the small friction wheel 1-3 are configured to make their linear velocities the same, the rubber strip 1-1 is coiled on the storage disc 1-4, and the rubber strip 1-1 is attached between the large friction wheel 1-2 and the small friction wheel 1-3. The storage disc 1-4 is located above the discharge mechanism, the rubber belt 1-1 is suspended and clamped between the large friction wheel 1-2 and the small friction wheel 1-3, and the first pulley set 1-7 works to realize that the rubber belt 1-1 is periodically fed in equal length. The first rotating shaft, the second rotating shaft and the third rotating shaft are arranged in parallel and placed in a horizontal direction, and are positioned by corresponding shaft sleeves, bearing seats and the like.

[0036] The dial 1-5 comprises a dial rod and a sector plate, the dial rod is connected to the inner concave side of the sector plate, the notch wheel 1-9 is provided with a plurality of inner concave arc-shaped pieces, a dial slot is provided between two adjacent inner concave arc-shaped pieces, the outer edge of the concave arc-shaped piece matches the outer edge of the sector plate, that is, when the dial 1-5 rotates, it can just slide through without touching the outer edge of the concave arc-shaped piece, and the dial rod can just dial to the dial slot when rotating, thereby driving the second rotating shaft to rotate.

[0037] As shown in Figure 3 and Figure 4 , the specific structure of the cutting mechanism of the present application is illustrated. The cutting mechanism is located below the discharge mechanism, and the cutting mechanism comprises a second motor 2-1, an eccentric wheel 2-2, a blade 2-4 and a cutting sleeve 2-5, the output shaft of the second motor 2-1 is in transmission connection with the second motor 2-1 to drive the eccentric wheel 2-2 to rotate, the eccentric wheel 2-2 drives the connecting rod 2-3 to move, the connecting rod 2-3 is hinged with the blade 2-4, the blade 2-4 is sleeved in the cutting sleeve 2-5, and the last segment of the cutting sleeve 2-5 is provided with a positioning hole 2-6; when the eccentric wheel 2-2 rotates and drives the connecting rod 2-3, the blade 2-4 moves forward and backward in the cutting sleeve 2-5 to realize cutting off the rubber strip 1-1 passing through the positioning hole 2-6. After completing the feeding of the rubber strip 1-1 once, the forming die 3-3 and the pressing die located on both sides of the rubber strip 1-1 generate a pre-tightening force on the rubber strip 1-1, and then the cutting mechanism cuts off the rubber strip.

[0038] As shown in Figure 5 ,Figure 6 and Figure 7 As shown in Fig. 3, it illustrates different states of the molding mechanism of the present application. Further, the outer edges of the plurality of molding dies 3-3 are provided with annular grooves, and the outer edges of the upper half-mold 3-1 and the lower half-mold 3-2 are provided with half-annular grooves. The plurality of molding dies 3-3 are located on a transmission system 3-8, and the upper half-mold 3-1 and the lower half-mold 3-2 are respectively connected with an upper die cam push rod 4-1 and a lower die cam push rod 4-2. When the transmission system 3-8 drives the molding dies 3-3 to move forward to touch the rubber strip 1-1, the lower die cam 3-4 and the upper die cam 3-5 rotate, and drive the upper half-mold 3-1 and the lower half-mold 3-2 to move through the lower die cam push rod 4-2 and the upper die cam push rod 4-1 respectively. As shown in Fig. 4, it illustrates the process of the molding mechanism. Figure 5 As can be seen, the mold is located in front of the current molding die, and the current molding die is conveyed to the rubber strip, so that the rubber strip is clamped between the mold and the molding die. The dividing line of the upper half-mold 3-1 and the lower half-mold 3-2 is just for the midpoint of the rubber strip. The lower die cam 3-4 and the upper die cam 3-5 rotate, and the upper half-mold 3-1 and the lower half-mold 3-2 press the rubber strip in two directions along the outer edges of the molding die. The process is shown in Fig. 5. Figure 6 As shown in Fig. 6, it illustrates the molding die after the pressing is completed. At this time, the molding die exchanges the position with the mold, and the molding die with the rubber ring is located in front of the mold. The lower half-mold 3-2 and the lower die cam push rod 4-2 are hinged through a first hinge 4-6, i.e. the lower half-mold 3-2 can rotate 360° during the molding process. The upper half-mold 3-1 and the upper die cam push rod 4-1 are hinged through a second hinge 4-7, i.e. the upper half-mold 3-1 can rotate 360° during the molding process. Figure 7 As shown in Fig. 7, it illustrates the structure of the dispensing mechanism. The dispensing mechanism includes a dispensing head 4-4 and a dispensing cylinder 4-5. The piston end of the dispensing cylinder 4-5 is connected with the dispensing head 4-4. After the molding is completed, the dispensing cylinder 4-5 drives the dispensing head 4-4 to move to the joint to realize the dispensing operation. As shown in Fig. 8, it illustrates the structure of the blowing device. The blowing device 3-7 is located at the side of the molding die after the molding is completed and is in the same horizontal position. Under the blowing force of the blowing device 3-7, the rubber ring on the molding die is blown down to realize the discharging. After the molding of the rubber ring is completed, the molding die continues to convey to the working position of the blowing device, and the rubber ring is blown down by the blowing device to realize the discharging.

[0039] As shown in Fig. 9, it illustrates the structure of the blowing device. The blowing device 3-7 is located at the side of the molding die after the molding is completed and is in the same horizontal position. Under the blowing force of the blowing device 3-7, the rubber ring on the molding die is blown down to realize the discharging. After the molding of the rubber ring is completed, the molding die continues to convey to the working position of the blowing device, and the rubber ring is blown down by the blowing device to realize the discharging. Figure 8 As shown in Fig. 10, it illustrates the structure of the dispensing mechanism. The dispensing mechanism includes a dispensing head 4-4 and a dispensing cylinder 4-5. The piston end of the dispensing cylinder 4-5 is connected with the dispensing head 4-4. After the molding is completed, the dispensing cylinder 4-5 drives the dispensing head 4-4 to move to the joint to realize the dispensing operation. As shown in Fig. 11, it illustrates the structure of the blowing device. The blowing device 3-7 is located at the side of the molding die after the molding is completed and is in the same horizontal position. Under the blowing force of the blowing device 3-7, the rubber ring on the molding die is blown down to realize the discharging. After the molding of the rubber ring is completed, the molding die continues to convey to the working position of the blowing device, and the rubber ring is blown down by the blowing device to realize the discharging.

[0040] As shown in Fig. 12, it illustrates the structure of the blowing device. The blowing device 3-7 is located at the side of the molding die after the molding is completed and is in the same horizontal position. Under the blowing force of the blowing device 3-7, the rubber ring on the molding die is blown down to realize the discharging. After the molding of the rubber ring is completed, the molding die continues to convey to the working position of the blowing device, and the rubber ring is blown down by the blowing device to realize the discharging. Figure 9 As shown in Fig. 13, it illustrates the structure of the blowing device. The blowing device 3-7 is located at the side of the molding die after the molding is completed and is in the same horizontal position. Under the blowing force of the blowing device 3-7, the rubber ring on the molding die is blown down to realize the discharging. After the molding of the rubber ring is completed, the molding die continues to convey to the working position of the blowing device, and the rubber ring is blown down by the blowing device to realize the discharging. As shown in Fig. 14, it illustrates the structure of the blowing device. The blowing device 3-7 is located at the side of the molding die after the molding is completed and is in the same horizontal position. Under the blowing force of the blowing device 3-7, the rubber ring on the molding die is blown down to realize the discharging. After the molding of the rubber ring is completed, the molding die continues to convey to the working position of the blowing device, and the rubber ring is blown down by the blowing device to realize the discharging.

[0041] As shown in Fig. 15, it illustrates the structure of the blowing device. The blowing device 3-7 is located at the side of the molding die after the molding is completed and is in the same horizontal position. Under the blowing force of the blowing device 3-7, the rubber ring on the molding die is blown down to realize the discharging. After the molding of the rubber ring is completed, the molding die continues to convey to the working position of the blowing device, and the rubber ring is blown down by the blowing device to realize the discharging. Figure 10As shown, the state of the present application is shown. Finished rubber ring is blown down from the molding die by blowing device, can set recycling mechanism or receiving mechanism, such mechanism is conventional setting, can be selected from the prior art, and is implemented by the skill and experience of those skilled in the art, so it is not described here. In order to simplify the schematic, Figure 9 and Figure 10 Only one molding die is shown, but as Figure 1 shown, a plurality of molding dies are arranged on the transmission system. When one rubber ring 4-3 is formed, the unloaded molding die after discharging continues to transmit forward to wait for the next cycle of molding, and the next molding die is transmitted to the pressing die. Therefore, in the molding process, there is no interference problem with multiple molding dies.

[0042] Although the above embodiments are described and explained separately, the common technology involved can be replaced and integrated between the embodiments in the view of those skilled in the art. If the content not explicitly recorded in one embodiment is referred to, it can be referred to another embodiment recorded.

[0043] The above only describes the preferred embodiments of the present application, but cannot be understood as a limitation on the claims. The present application is not limited to the above embodiments, and the specific structure allows changes. In general, any changes made within the scope of the independent claims of the present application are within the scope of the present application.

Claims

1. A rubber ring dispensing and molding device based on double cam drive, comprising: an output mechanism for periodically outputting equal-length rubber strips (1-1); a cutting mechanism located below the output mechanism, the cutting mechanism being provided with a positioning hole for the rubber strip to pass through, and the cutting mechanism cutting the rubber strip (1-1) located in the positioning hole (2-6) after the output mechanism completes the feeding of a rubber strip (1-1) once; a molding mechanism including a plurality of molding dies (3-3) and a pressing die composed of a semicircular upper die (3-1) and a semicircular lower die (3-2), the pressing die being located at the side of the rubber strip (1-1) of the output mechanism, and the molding die being transmitted to the other side of the rubber strip (1-1) after completing the feeding of a rubber strip (1-1) once, and the semicircular upper die (3-1) and the semicircular lower die (3-2) being driven to move upward and downward, respectively, to the side of the molding die (3-3), so as to press the rubber strip (1-1) on the molding die (3-2) to complete the molding of the rubber strip; a dispensing mechanism for dispensing glue at the interface of the rubber strip; after completing the feeding of a rubber strip (1-1) once, the molding die (3-3) and the pressing die located at both sides of the rubber strip (1-1) generate a pre-tightening force on the rubber strip (1-1), and then the cutting mechanism cuts the rubber strip; the output mechanism includes a first pulley set (1-7) and a second pulley set (1-8), the first pulley set (1-7) being driven by a first motor (1-6) to rotate a dial (1-5) through a first rotating shaft, the dial (1-5) continuously rotating and intermittently driving a grooved wheel (1-9), the grooved wheel (1-9) intermittently rotating a second rotating shaft on which the grooved wheel (1-9) is installed, a large friction wheel (1-2) being installed on the second rotating shaft, and a small friction wheel (1-3) being installed on a third rotating shaft, the second pulley set (1-8) driving the second rotating shaft and the third rotating shaft to rotate, the diameters of the large friction wheel (1-2) and the small friction wheel (1-3) being configured to have the same linear speed, and the rubber strip (1-1) being coiled on a storage disc (1-4), the rubber strip (1-1) being attached between the large friction wheel (1-2) and the small friction wheel (1-3) at the output end; the molding die (3-3) is located on a transmission system (3-8), the semicircular upper die (3-1) and the semicircular lower die (3-2) being connected with an upper die cam push rod (4-1) and a lower die cam push rod (4-2), respectively, when the transmission system (3-8) drives the molding die (3-3) to move forward and touch the rubber strip (1-1), a lower die cam (3-4) and an upper die cam (3-5) rotate, respectively driving the semicircular upper die (3-1) and the semicircular lower die (3-2) to move through the lower die cam push rod (4-2) and the upper die cam push rod (4-1).

2. The double cam driving based rubber ring point glue forming device according to claim 1, wherein: Also include blowing device (3-7), the blowing device (3-7) is located in the side of the molding mold that has finished molding, and with it in the same horizontal position, under the blowing force of the blowing device (3-7), the rubber ring on the molding mold is blown down to realize the blanking.

3. The double cam driving based rubber ring point glue forming device according to claim 1, wherein: The cutting mechanism includes a second motor (2-1), an eccentric wheel (2-2), a blade (2-4) and a cutting sleeve (2-5), the output shaft of the second motor (2-1) is in transmission connection with the second motor (2-1) to drive the eccentric wheel (2-2) to rotate, the eccentric wheel (2-2) drives the connecting rod (2-3) to move, the connecting rod (2-3) is hinged with the blade (2-4), the blade (2-4) is sleeved in the cutting sleeve (2-5), and the last section of the cutting sleeve (2-5) is provided with a positioning hole (2-6); when the eccentric wheel (2-2) rotates and drives the connecting rod (2-3), the blade (2-4) moves forward and backward in the cutting sleeve (2-5) to realize cutting off the rubber strip (1-1) passing through the positioning hole (2-6).

4. The double cam driving based rubber ring point glue forming device according to claim 1, characterized in that: The outer edges of the plurality of molding molds (3-3) are provided with annular grooves, and the outer half edges of the semicircular upper mold (3-1) and the semicircular lower mold (3-2) are provided with semicircular annular grooves.

5. The double cam driving based rubber ring point glue forming device according to claim 1, characterized in that: The glue dispensing mechanism includes a glue dispensing head (4-4) and a glue dispensing cylinder (4-5), the piston end of the glue dispensing cylinder (4-5) is connected with the glue dispensing head (4-4), after completing molding, the glue dispensing cylinder (4-5) drives the glue dispensing head (4-4) to move to the joint to realize glue dispensing operation.

Images