Automatic Pressing Line for Hardware Pipe Fittings

Abstract

The automatic pressing line for hardware pipe fittings of the present invention realizes the automatic feeding and discharging of pipe fittings on the feeding and discharging rack on one side of the pressing machine through the setting of a material transfer mechanism. Cooperating with the material pushing mechanism, the pipe fittings can be automatically fed into the pressing machine. On the other side of the pressing machine, a sleeve feeding mechanism for automatically feeding sleeves into the pressing machine is provided, realizing the automatic assembly of pressing and assembling hardware pipe fittings and sleeves by the pressing machine, saving labor costs and improving production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of hardware pipe fitting processing, and particularly relates to an automatic pressing line for hardware pipe fittings. Background Art

[0002] In some industrial fields, it is necessary to connect a pipe fitting joint made of hardware to one end of a pipe. For example, for a sonic logging pipe, it is necessary to connect a sleeve with a sealing ring to one end of the main pipe. Pressing connection is a commonly used connection method. After the sleeve is sleeved on one end of the main pipe, a pressing machine is used to connect the two together. The current production method is to manually sleeve the sleeve onto the main pipe and then press it with a pressing machine. Both loading and unloading require manual operation, resulting in high labor intensity, high labor cost, and low production efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the problems of manual loading and unloading when connecting a sleeve made of hardware to a pipe fitting, which results in high labor intensity, high labor cost, and low production efficiency. The present invention provides an automatic pressing line that realizes automatic loading, assembly, and unloading of the sleeve and the pipe fitting, saving labor costs and improving production efficiency.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An automatic pressing line for hardware pipe fittings includes a pressing machine, a feeding and discharging rack, a pipe fitting conveying mechanism, a material transferring mechanism, a pushing mechanism, a sleeve feeding mechanism, a sleeve conveying mechanism, and a guiding fixture; the pressing machine has a pressing channel running through both ends thereof, which is used to press the sleeve onto the end of the pipe fitting; the feeding and discharging rack is arranged at the rear side of the pressing channel and is used to support the feeding and discharging of the pipe fitting; the pipe fitting conveying mechanism is used to move the pipe fitting towards the feeding and discharging rack; the material transferring mechanism is used to transfer the pipe fitting at the end of the pipe fitting conveying mechanism to the feeding and discharging rack; the pushing mechanism is used to push the front end of the pipe fitting to be processed on the feeding and discharging rack forward into the pressing channel, and to pull the processed pipe fitting backward from the pressing channel; the sleeve feeding mechanism is used to convey the sleeve; the sleeve conveying mechanism is used to transfer and sleeve the sleeve conveyed by the sleeve feeding mechanism onto the end of the pipe fitting of the pressing machine; the guiding fixture includes a guiding and positioning member configured with an axially extending first guiding channel and a second guiding channel. The first guiding channel is used for guiding and positioning the sleeve pushed by the sleeve conveying mechanism to the pre-sleeving position, and the second guiding channel is used for guiding and positioning the pipe fitting pushed by the pushing mechanism to be pre-sleeved with the sleeve. Then, the sleeve conveying mechanism further sleeves the pre-sleeved sleeve onto the pipe fitting and extends it into the pressing channel.

[0006] Compared with the prior art, in the automatic pressing line of the hardware pipe fittings of the present invention, one side of the press is provided with a material transfer mechanism to realize the automatic feeding and discharging of the pipe fittings on the feeding and discharging rack. Cooperating with the material pushing mechanism, the pipe fittings can be automatically fed into the press. On the other side of the press, a sleeve feeding mechanism for automatically feeding the sleeve into the press is provided, realizing the automatic assembly of pressing and assembling the hardware pipe fittings and the sleeve by the press, saving labor costs and improving production efficiency.

[0007] Further, the guiding fixture includes a guiding and positioning member formed by enclosing several pieces, and a guiding driver for driving the guiding and positioning member to open and close. Along the axial direction, a first guiding and positioning surface and a second guiding and positioning surface are arranged on the inner side of each guiding and positioning member; in the enclosed state of each module, each first guiding and positioning surface encloses to form a first guiding channel, and each second guiding and positioning surface encloses to form a second guiding channel. When each guiding and positioning member is in the open state, the sleeve feeding mechanism further sleeves the sleeve onto the pipe fitting and extends into the pressing channel; through such a setting, the sleeve conveyed by the sleeve feeding mechanism is pre-positioned and then further sleeved with the pipe fitting, preferably enabling the successful docking of the sleeve and the pipe fitting, and the assembly reliability is high.

[0008] Further, the sleeve feeding mechanism includes a sleeving fixture, a flipping device, a pneumatic driving device and a translation device. The sleeving fixture is connected to the rotating end of the flipping device through the pneumatic driving device. The flipping device is installed on the translation device. The translation device drives the sleeving fixture to move along the direction relative to the press. The flipping device drives the sleeving fixture to flip between the vertical position of receiving the sleeve and the horizontal position of pushing the sleeve; the pneumatic driving device is used to push the sleeving fixture to the first position where the sleeve enters the first guiding channel, the translation device is used to further push the sleeving fixture into the press to make the sleeve and the end of the pipe fitting sleeved in place at the second position, and move the sleeving fixture to the third position of receiving the sleeve conveyed by the sleeve feeding mechanism; through such a setting, the sleeve conveyed by the sleeve feeding mechanism is pre-positioned and then further sleeved with the pipe fitting, preferably enabling the successful docking of the sleeve and the pipe fitting, and the assembly reliability is high.

[0009] Further, the sleeve feeding mechanism is a vibrating disk feeding mechanism, and further includes a sleeve transfer device for transferring the sleeve conveyed to the front end of the sleeve feeding mechanism to the sleeve feeding mechanism. The sleeve feeding mechanism makes the joint end direction of the sleeve face upward. The sleeve transfer device includes a first clamp, a translation driving component for driving the first clamp to move horizontally, and a first vertical driver for driving the first clamp to move vertically; through such a setting, the sleeve is sleeved with the end of the pipe fitting by segmented propulsion at the first position and the second position, preferably realizing the successful docking of the sleeve and the pipe fitting.

[0010] Further, the feeding and discharging rack is provided with a plurality of centering and guiding devices arranged at intervals for supporting and guiding pipe fittings, and further includes a pressing mechanism. The pressing mechanism includes a front-end pressing rack and a rear-end pressing rack arranged above the front end and the rear end of the feeding and discharging rack respectively. The front-end pressing rack and the rear-end pressing rack respectively include centering and guiding wheels and second vertical drivers for driving the centering and guiding wheels to move vertically. The pressing mechanism is used to cooperate with the centering and guiding devices to guide and position the pipe fittings. By such an arrangement, the pressing mechanism preferably limits the pipe fittings on the feeding and discharging rack in a downward pressing manner to prevent the pipe fittings from detaching from the feeding and discharging rack during the working process.

[0011] Further, the material transfer mechanism includes a material transfer member arranged below the centering and guiding device and a material transfer driver for driving the material transfer member to move vertically. The upper side of the material transfer member is successively provided with a first guiding inclined surface and a second guiding inclined surface that slope downward from the feeding direction to the discharging direction. The front end of the first guiding inclined surface extends to the end of the pipe fitting conveying mechanism. A first positioning portion is formed between the end of the first guiding inclined surface and the front end of the second guiding inclined surface. The first positioning portion is offset from the center of the centering and guiding device towards the side close to the pipe fitting conveying mechanism. The end of the second guiding inclined surface extends to the other side of the centering and guiding device. The material transfer driver drives the material transfer member to rise. The pipe fitting at the end of the pipe fitting conveying mechanism is transferred onto the first guiding inclined surface through the first guiding inclined surface and the first positioning portion. At the same time, the pipe fitting located on the centering and guiding device is taken out to the other side through the second guiding inclined surface. The material transfer driver drives the material transfer member to descend and places the pipe fitting on the first guiding inclined surface onto the centering and guiding device. By such an arrangement, the material transfer mechanism can transfer the pipe fitting at the forefront of the pipe fitting conveying mechanism to the centering and guiding device, and take out and discharge the processed pipe fitting on the centering and guiding device, realizing the transfer of the positions of two pipe fittings at the same time, with high working efficiency.

[0012] Further, it further includes a pipe fitting feeding mechanism connected to the pipe fitting conveying mechanism. The pipe fitting feeding mechanism includes a plurality of feeding conveyor components and a feeding driver for driving each feeding conveyor component to operate. The feeding conveyor component includes a winding wheel, a feeding belt and a first support. The two ends of the feeding belt are respectively connected to the first support and the winding wheel and are wound around a guiding wheel arranged at the front end of the pipe fitting conveying mechanism. The winding wheel is arranged below the pipe fitting conveying mechanism. The feeding belt forms a pipe fitting feeding and placing area for loading pipe fittings between the guiding wheel and the first support. The feeding driver realizes lifting the pipe fittings in the pipe fitting feeding and placing area upward and transferring them to the front end of the pipe fitting conveying mechanism by driving the winding wheel to wind the feeding belt. By such an arrangement, the pipe fitting feeding mechanism has a simple structure, can realize the feeding of pipe fittings one by one, and has a lower manufacturing cost compared with the feeding method by a manipulator.

[0013] Further, the pipe fitting conveying mechanism includes a plurality of supporting members for supporting pipe fittings arranged at intervals and a pipe fitting conveying assembly. The upper side of the supporting member has a supporting portion extending along the pipe fitting conveying direction. A feeding guiding inclined surface is arranged on one side of the supporting portion close to the feeding and discharging rack, and a feeding positioning portion is arranged at the end of the feeding guiding inclined surface. The pipe fitting conveying assembly includes a conveyor for driving the pipe fitting to move along the supporting portion. With such a setting, the pipe fitting conveying mechanism has a simple structure and good positioning effect after the pipe fitting is loaded on the supporting member.

[0014] Further, it further includes a first sensor and a second sensor arranged at intervals above the supporting member. The first sensor is used to detect the pipe fitting at the end of the feeding guiding inclined surface, and the second sensor is used to detect the pipe fitting at a preset distance from the end of the feeding guiding inclined surface. The pipe fitting conveying assembly conveys the pipe fitting towards the end of the feeding guiding inclined surface according to the detection signals of the first sensor and the second sensor. With such a setting, by setting the first sensor and the second sensor, the pipe fitting conveying assembly can be better controlled to continuously supply pipe fittings.

[0015] Further, the pushing mechanism includes a rear-end pushing assembly and a front-end feeding mechanism. The rear-end pushing assembly is used to push the front end of the pipe fitting to be processed on the centering guide towards the front-end feeding mechanism and reach the first preset position, and pull the processed pipe fitting at the first preset position backward out of the front-end feeding mechanism. The rear-end pushing assembly includes a rear-end clamping device and a rear-end driver for driving the rear-end clamping device to reciprocate along the direction of the press. The front-end feeding mechanism is used to feed the pipe fitting to be processed at the first preset position forward into the pressing channel, and pull the processed pipe fitting in the pressing channel backward to the first preset position. The front-end feeding mechanism includes a front-end clamping device and a front-end driver for driving the front-end clamping device to reciprocate along the direction of the press. A third sensor is used to detect whether the pipe fitting reaches the first preset position and provide feedback to the rear-end driver. With such a setting, the rear-end pushing assembly and the front-end feeding mechanism transfer the pipe fitting in a segmented manner, and can better realize feeding, processing and discharging of the pipe fitting. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of an automatic pressing line for hardware pipe fittings

[0017] Figure 2 It is a schematic diagram of the automatic pressing line for hardware pipe fittings with the press and the guiding fixture removed

[0018] Figure 3 It is a partial schematic diagram of the rear side of the automatic pressing line for hardware pipe fittings

[0019] Figure 4 It is Figure 3 A partial enlarged view of area A in

[0020] Figure 5 It is a partial schematic diagram of the front side of the automatic pressing line for hardware pipe fittings

[0021] Figure 6 is Figure 5 Partial enlarged view of area B

[0022] Figure 7 is a schematic diagram of a press and a material guiding fixture

[0023] Figure 8 is a schematic diagram of a sleeve feeding mechanism, a sleeve loading mechanism and a sleeve transfer device

[0024] Figure 9 is a schematic diagram of a sleeve feeding mechanism

[0025] Figure 10 is a schematic diagram of a front-end feeding mechanism

[0026] Figure 11 is a schematic diagram of a material guiding fixture

[0027] Figure 12 is a schematic diagram of a material guiding and positioning part Specific embodiments

[0028] The technical solution of the present invention will be described below with reference to the accompanying drawings:

[0029] Referring to Figures 1 to 12 , the automatic press-fitting line for metal pipe fittings of the present invention includes a press 2, a feeding and discharging rack, a pipe fitting conveying mechanism 6, a material transferring mechanism 8, a pushing mechanism, a sleeve loading mechanism 3, a sleeve feeding mechanism 4, and a material guiding fixture 1; the press 2 has a press-fitting channel 21 penetrating through both ends thereof for press-fitting a sleeve 103 onto the end of a pipe fitting 104; the feeding and discharging rack is arranged at the rear side of the press-fitting channel 21 for supporting the feeding and discharging of the pipe fitting 104; the pipe fitting conveying mechanism 6 is used for moving the pipe fitting 104 towards the feeding and discharging rack; the material transferring mechanism 8 is used for transferring the pipe fitting 104 at the end of the pipe fitting conveying mechanism 6 to the feeding and discharging rack; the pushing mechanism is used for pushing the front end of the pipe fitting 104 to be processed on the feeding and discharging rack forward into the press-fitting channel 21 and pulling the processed pipe fitting 104 backward from the press-fitting channel 21; the sleeve loading mechanism 3 is used for conveying the sleeve 103; the sleeve feeding mechanism 4 is used for transferring and sleeving the sleeve 103 conveyed by the sleeve loading mechanism 3 onto the end of the pipe fitting 104 of the press 2; the material guiding fixture 1 includes a material guiding and positioning part 11 provided with an axially extending first guiding channel 13 and a second guiding channel 14. The first guiding channel 13 is used for guiding and positioning the sleeve 103 pushed by the sleeve feeding mechanism 4 to the pre-sleeving position, and the second guiding channel 14 is used for guiding and positioning the pipe fitting 104 pushed by the pushing mechanism to be pre-sleeved with the sleeve 103. Then, the sleeve feeding mechanism 4 further sleeved the pre-sleeved sleeve 103 onto the pipe fitting 104 and extends it into the press-fitting channel 21.

[0030] The first guide channel 13 and the second guide channel 14 are provided to guide and position the two ends of the sleeve 103 and the pipe 104 so as to be sleeved together, so as to facilitate further sleeve-fitting of the two ends and ensure that the sleeve 103 and the pipe 104 are pressed together.

[0031] Compared with the prior art, in the automatic pressing line for hardware pipe fittings of the present invention, a material shifting mechanism 8 is provided on one side of the pressing machine 2 to realize automatic loading and unloading of pipe fittings 104 on a feeding and unloading rack, and the pushing mechanism can automatically feed the pipe fittings 104 into the pressing machine 2, and a sleeve feeding mechanism 4 is provided on the other side of the pressing machine 2 for automatically feeding the sleeve 103 into the pressing machine 2, so as to realize the automatic assembly of the pressing and assembling of the hardware pipe fittings 104 and the sleeve 103 by the pressing machine 2, thereby saving labor costs and improving production efficiency.

[0032] See also Figures 1 to 4 In one embodiment, it also includes a first frame 101 and a second frame 102 arranged adjacent to each other, the pushing mechanism includes a rear end pushing assembly 72 and a front end feeding mechanism 73, the pressing machine 2, the sleeve loading mechanism 3, the sleeve feeding mechanism 4 and the front end feeding mechanism 73 are arranged on the first frame 101, the pipe conveying mechanism 6, the feeding and unloading rack, the material moving mechanism 8 and the rear end pushing assembly 72 are arranged on the second frame 102, and the sleeve feeding mechanism 4 and the front end feeding mechanism 73 are respectively located on both sides of the pressing machine 2.

[0033] See also Figures 1 to 4 , Figure 11 and Figure 12 In one embodiment, the material guide jig 1 is arranged adjacent to the pressing machine 2, and the material guide jig 1 is arranged on a side close to the sleeve feeding mechanism 4. The material guide jig 1 includes a material guide positioning member 11 formed by a plurality of enclosed blocks, and a material guide driver 12 for driving the material guide positioning member 11 to open and close. A first guide positioning surface and a second guide positioning surface are axially arranged on the inner side of each material guide positioning member 11; when each material guide positioning member 11 is in the enclosed state, each first guide positioning surface encloses a first guide channel 13, and each second guide positioning surface encloses a second guide channel 14. When each material guide positioning member 11 is in the open state, the sleeve feeding mechanism 4 further inserts the sleeve 103 into the pipe 104 and extends it into the pressing channel 21. With such an arrangement, the material guide positioning member 11 avoids the movement of the sleeve feeding mechanism 4 when it is opened, ensuring that the sleeve 103 and the pipe 104 are further inserted into the pipe 104 in place.

[0034] See also Figure 12In one embodiment, the inner diameter of the sleeve 103 is larger than that of the pipe 104, and the first guiding and positioning surface includes a tapered portion 111 and a circular portion 112 from the outside to the inside, and each first guiding and positioning surface encloses a connected tapered hole and a circular hole. By configuring the tapered portion 111 in this way, the insertion of the sleeve 103 is convenient, and the circular portion 112 realizes the radial positioning of the sleeve 103; the second guiding and positioning surface also includes a tapered portion 111 and a circular portion 112 from the outside to the inside, and each second guiding and positioning surface encloses a connected tapered hole and a circular hole. By configuring the tapered portion 111 in this way, the insertion of the kit 104 is convenient, and the circular portion 112 realizes the radial positioning of the kit 104.

[0035] See also Figure 8 and Figure 9 In one embodiment, the sleeve feeding mechanism 4 includes a sleeve fixture 41, a flipping device 42, a pneumatic driving device 43 and a translation device. The flipping device 42 is preferably a motor. The pneumatic driving device 43 is a pneumatic push rod. The sleeve fixture 41 is connected to the rotating end of the flipping device 42 through the pneumatic driving device 43. The sleeve fixture 41 is arranged at the output end of the pneumatic driving device 43. The pneumatic driving device 43 is connected to the output end of the flipping device 42 through a rotating connecting frame 44. The flipping device 42 is installed on the translation device. The translation device drives the sleeve fixture 41 to move relative to the pressing machine 2. The turning device 42 drives the fitting jig 41 to turn between the vertical position of receiving the sleeve 103 and the horizontal position of pushing the sleeve 103; the pneumatic driving device 43 is used to push the fitting jig 41 to the first position so that the sleeve 103 enters the first guide channel 13, and the translation device is used to continue to push the fitting jig 41 into the pressing machine 2 so that the sleeve 103 and the end of the pipe are fitted into place at the second position, and to move the fitting jig 41 to the third position of receiving the sleeve 103 delivered by the sleeve feeding mechanism 3; through such an arrangement, the sleeve feeding mechanism 4 receives and pushes the sleeve 103 in a simple manner and has high working efficiency.

[0036] In one embodiment, the translation device is driven by a servo drive device, and the servo drive device receives feedback of the reaction force of the sleeve fixture 41. When the reaction force exceeds a preset threshold, the servo drive device stops working. By setting it in this way, the translation device is driven by a servo drive device, and when the reaction force exceeds a preset threshold, the servo drive device stops working, which can effectively avoid the deformation and other unqualified sleeves 103 from being unable to be sleeved with the pipe fitting 104 and continuing to push, resulting in hard loss of the pipe fitting 104, thereby ensuring the reliability of the sleeve connection between the sleeve 103 and the pipe fitting 104.

[0037] See also Figures 7 to 9, in a further embodiment, the translation device includes a translation driver 45, a slide 46, and a guide rail mechanism 47. The translation driver 45 is preferably a servo electric cylinder. The flipping device 42, the rotary connecting frame 44, the pneumatic driving device 43, and the nesting jig 41 are arranged on the slide 46. The slide 46 is slidably arranged on the first frame 101 through the guide rail mechanism 47. The translation driver 45 is in transmission connection with the slide 46.

[0038] See Figure 11 and Figure 12 , in a further embodiment, there are two material guiding and positioning members 11. Each material guiding and positioning member 11 is configured with a material guiding driver 12. The material guiding driver 12 is preferably a push rod. Each of the material guiding drivers 12 realizes the opening and closing of the material guiding and positioning member 11 by driving the corresponding material guiding and positioning member 11.

[0039] See Figure 8 , in one embodiment, the sleeve feeding mechanism 3 is a vibrating disk feeding mechanism, and further includes a sleeve transfer device 5 for transferring the sleeve 103 conveyed to the front end of the sleeve feeding mechanism 3 to the sleeve feeding mechanism 4. The sleeve feeding mechanism 3 makes the joint end direction of the sleeve 103 face upward. The sleeve transfer device 5 includes a first clamp 51, a translation driving assembly for driving the first clamp 51 to move horizontally, and a first vertical driver 52 for driving the first clamp 51 to move vertically. The first vertical driver 52 is a push rod. The first clamp 51 is arranged at the output end of the first vertical driver 52. The translation driving assembly includes a translation push rod 53, and a first slide 54 and a first slide rail device 55 that are slidably connected to each other. The first vertical driver 52 is horizontally slidably arranged on the first frame 101 through the first slide 54 and the first slide rail device 55. The translation push rod 53 can transfer the material of the sleeve 103 of the sleeve feeding mechanism 3 between the sleeve feeding mechanism 3 and the sleeve feeding mechanism 4 by driving the first slide 54. With such a setting, the setting method of the sleeve transfer device 5 is simple, and the sleeve 103 of the sleeve feeding mechanism 3 can be transferred to the sleeve feeding mechanism 4 in the horizontal and vertical directions.

[0040] See Figures 1 to 5, in one embodiment, the feeding and discharging rack is provided with a plurality of centering and guiding devices 71 arranged at intervals for supporting and guiding pipe fittings. The centering and guiding device 71 is a centering and guiding roller. The feeding and discharging rack further includes a pressing mechanism. The pressing mechanism includes a front pressing rack 74 and a rear pressing rack 75 arranged above the front end and the rear end of the feeding and discharging rack respectively. The front pressing rack 74 and the rear pressing rack 75 each include a centering and guiding wheel 741 and a second vertical driver 742 for driving the vertical movement of the centering and guiding wheel 741. The second vertical driver 742 is preferably a push rod. The pressing mechanism is used to cooperate with the centering and guiding device 71 to horizontally guide and vertically position the pipe fittings. By such an arrangement, the pressing mechanism preferably limits the pipe fittings on the feeding and discharging rack in a pressing manner to prevent the pipe fittings from disengaging from the feeding and discharging rack during the working process.

[0041] See Figures 3 to 6 , in one embodiment, a plurality of the material transfer mechanisms 8 are arranged along the lengthwise conveying direction of the pipe fittings. The material transfer mechanism 8 includes a blanking guide frame 81 arranged below the centering and guiding device 71, a material transfer member 82, and a material transfer driver 83 for driving the vertical movement of the material transfer member 82. The blanking guide frame 81 is located on one side of the material transfer member 82 along the blanking direction. The blanking guide frame 81 is provided with a blanking guide slope 811 arranged obliquely downward along the blanking direction. The upper side of the material transfer member 82 is sequentially provided with a first guide slope 821 and a second guide slope 822 that are inclined downward from the feeding direction to the blanking direction. The front end of the first guide slope 821 extends to the end of the pipe fitting conveying mechanism 6. A first positioning portion 823 is formed between the end of the first guide slope 821 and the front end of the second guide slope 822. The first positioning portion 823 is offset from the center of the centering and guiding device 71 toward the side close to the pipe fitting conveying mechanism 6. The end of the second guide slope 822 extends to the other side of the centering and guiding device 71. A second positioning portion 824 is provided at the end of the second guide slope 822. The second positioning portion 824 corresponds to the blanking guide slope 811. When the material transfer driver 83 drives the material transfer member 82 to rise, the pipe fitting at the end of the pipe fitting conveying mechanism 6 is transferred onto the first guide slope 821 through the first guide slope 821 and the first positioning portion 823. At the same time, the pipe fitting located on the centering and guiding device 71 is taken out and slides to the second positioning portion 824 on the other side through the second guide slope 822. When the material transfer driver 83 drives the material transfer member 82 to descend, the pipe fitting on the first guide slope 821 is placed on the centering and guiding device 71, and the processed pipe fitting on the second guide slope 822 is placed on the blanking guide slope 811 for blanking. By such an arrangement, the material transfer mechanism 8 can transfer the pipe fitting at the forefront of the sub-pipe conveying mechanism to the centering and guiding device 71, and take out and blank the processed pipe fitting on the centering and guiding device 71, realizing the position transfer of two pipe fittings at the same time, with high working efficiency.

[0042] See Figure 2 andFigure 3 In one embodiment, it further includes a pipe fitting loading mechanism 91 connected to the pipe fitting conveying mechanism 6. The pipe fitting loading mechanism 91 includes multiple groups of loading conveyor components 912 and a loading driver 911 for driving each loading conveyor component 912 to operate. The loading conveyor component 912 includes a guide wheel 913, a winding wheel 914, a loading belt 915, and a first bracket 916. Both ends of the loading belt 915 are respectively connected to the first bracket 916 and the winding wheel 914, and the middle part is wound around the guide wheel 913 provided at the head end of the pipe fitting conveying mechanism 6. The winding wheel 914 is arranged below the pipe fitting conveying mechanism 6. One end of the loading belt 915 connected to the first bracket 916 is located above the guide wheel 913. A pipe fitting loading and placing area 917 for loading pipe fittings is formed between the guide wheel 913 and the first bracket 916 of the loading belt 915. The loading driver 911 realizes lifting the pipe fittings in the pipe fitting loading and placing area 917 upward and transferring them to the head end of the pipe fitting conveying mechanism 6 by driving the winding wheel 914 to wind the loading belt 915. With such an arrangement, the structure of the pipe fitting loading mechanism 91 is simple, it can realize the feeding of pipe fittings one by one, and compared with the feeding method by a manipulator, the manufacturing cost is low.

[0043] In a further embodiment, a travel switch (not shown in the figure) is provided on the upper side of one end of the first bracket 916 where the loading belt 915 is connected. The travel switch is used to be triggered when the loading belt 915 is wound to the limit, thereby controlling the loading driver 911 to pause operation and avoiding damage caused by excessive winding of the loading belt 915 to pull the first bracket 916.

[0044] See Figure 3 and Figure 5 In one embodiment, it further includes a pipe fitting guide frame 66 provided above the pipe fitting conveying mechanism 6. A pipe fitting conveying channel 67 is formed between the pipe fitting guide frame 66 and the pipe fitting conveying mechanism 6. The distance between the pipe fitting conveying channels 67 is less than the width of two pipe fittings. A pipe fitting introducing portion 661 is provided at the outer end of the pipe fitting guide frame 66. With such an arrangement, the situation of overlapping materials in the pipe fitting conveying channel 67 is preferably avoided, ensuring the feeding of pipe fittings one by one.

[0045] See Figure 2 and Figure 3In one embodiment, it also includes a pipe unloading mechanism 92 connected to the side of the unloading guide frame 81, the pipe unloading mechanism 92 includes a plurality of groups of spaced-apart unloading storage components 921, the unloading storage components 921 include a storage belt 922 and a second bracket 923, the second bracket 923 is provided with a V-shaped connecting frame on the upper part, the two ends of the storage belt 922 are respectively connected to the upper two ends of the V-shaped connecting frame and remain in a relaxed state, so that the storage belt 922 as a whole also remains in a V-shape, so that the storage belt 922 is located between the two ends to form a pipe unloading placement area 924, further, the lower end of the unloading guide slope 811 of the unloading guide frame 81 is located in the unloading placement area 924, which can better ensure that the pipes unloaded by the unloading guide frame 81 can directly fall into the unloading placement area 924.

[0046] See also Figures 2 to 6 In one embodiment, the pipe conveying mechanism 6 includes a plurality of support members 68 arranged at intervals to support the pipes, a pipe conveying assembly 62, and a pipe conveying driving mechanism 61 for driving each pipe conveying assembly 62 to operate. The upper side of the support member 68 has a support portion extending along the pipe conveying direction. The support portion is provided with a loading guide slope 681 on one side close to the feeding and unloading rack. A loading positioning portion 682 is provided at the end of the loading guide slope 681. The pipe conveying assembly 62 includes a conveyor that drives the pipe to move along the support portion. The pipe conveying driving mechanism 61 is preferably The motor, the conveyor includes a conveying chain 65 and a first sprocket 63 and a second sprocket 64 arranged at intervals, the conveying chain 65 is respectively wound around the first sprocket 63 and the second sprocket 64, the pipe conveying drive mechanism 61 is connected to each first sprocket 63 through a transmission shaft 611, so that the pipe conveying drive mechanism 61 drives the first sprocket 63 and the second sprocket 64 to operate, thereby driving the pipes on the conveying chain 65 to be conveyed to one side of the feeding and unloading rack; through such an arrangement, the pipe conveying mechanism 6 has a simple structure and a good positioning effect after the pipes are loaded on the supporting member 68.

[0047] See also Figures 2 to 6, in one embodiment, it further includes a first sensor (not shown in the figure) and a second sensor (not shown in the figure) which are spaced apart and disposed above the supporting member 68. The first sensor and the second sensor are, for example, photoelectric opposed sensors. The first sensor is used to detect the pipe fitting at the end of the feeding guiding inclined plane 681, and the second sensor is used to detect the pipe fitting at a preset distance from the end of the feeding guiding inclined plane 681. The pipe fitting conveying assembly 62 conveys the pipe fitting towards the end of the feeding guiding inclined plane 681 according to the detection signals of the first sensor and the second sensor. For example, when the first sensor and the second sensor detect that there is no pipe fitting at the corresponding position, the pipe fitting conveying assembly 62 conveys the pipe fitting towards the end of the feeding guiding inclined plane 681. By such a setting, by arranging the first sensor and the second sensor, the pipe fitting conveying assembly 62 is better controlled to continuously supply pipe fittings.

[0048] See Figure 1 , Figure 2 and Figure 10 , in one embodiment, the pushing mechanism includes a rear-end pushing assembly 72, a front-end feeding mechanism 73 and a third sensor (not shown in the figure); the rear-end pushing assembly 72 is used to push the front end of the pipe fitting to be processed on the centering guiding device 71 forward to the front-end feeding mechanism 73 and reach a first preset position, and pull the processed pipe fitting at the first preset position backward out of the front-end feeding mechanism 73; the front-end feeding mechanism 73 is used to feed the pipe fitting to be processed at the first preset position forward into the pressing channel 21, and pull the processed pipe fitting in the pressing channel 21 backward to the first preset position. The front-end feeding mechanism 73 includes a front-end clamping device 731 and a front-end driver 732 that drives the front-end clamping device 731 to reciprocate along the direction of the pressing machine 2; the third sensor is disposed on the side of the end of the pressing machine 2 through a sensor bracket 105 and is used to detect whether the front end of the pipe fitting reaches the first preset position and provide feedback to the rear-end driver 74. By such a setting, the rear-end pushing assembly 72 and the front-end feeding mechanism 73 transfer the pipe fitting in a segmented manner, and the feeding, processing, discharging and unloading of the pipe fitting are better realized.

[0049] See Figure 7 and Figure 10, in one embodiment, the front-end driver 732 is preferably a push rod. The front-end gripper 731 includes two clamping members 733, a clamping push rod 734, and a bidirectional gear transmission structure. The bidirectional gear transmission structure includes a driving gear 735 and two oppositely arranged rack transmission members 736. Each clamping member 733 is configured with a rack transmission member 736, and the bottoms of the two clamping members 733 slide relative to or in opposite directions in the lateral direction through a second slide rail device 737. The two rack transmission members 736 are respectively arranged on both sides of the driving gear 735 and mesh with the outside of the driving gear 735. The clamping push rod 734 is in transmission connection with one of the rack transmission members 736. By driving the clamping push rod 734 forward and backward, the two clamping members 733 can clamp or release the pipe fitting 104 relatively. The front-end gripper 731 is arranged on the second slide rail device 737 through a second carriage. The front-end driver 732 is in transmission connection with the second carriage so that the front-end gripper 731 can slide relatively in the longitudinal direction, realizing feeding the pipe fitting 104 to be processed forward into the press, and pulling out the processed pipe fitting 104 in the press. By such an arrangement, the setting method of the front-end feeding mechanism 73 is simple, and the effect of clamping and moving the pipe fitting 104 is good.

[0050] See Figure 3 , in one embodiment, the rear-end pushing assembly 72 includes a rear-end gripper (not shown in the figure) and a rear-end driver 74 that drives the rear-end gripper to reciprocate in the direction of the press. The rear-end driver 74 is preferably a lead screw driving mechanism. By such an arrangement, the setting methods of the front-end feeding mechanism 73 and the rear-end pushing assembly 72 are simple, and the effect of clamping and moving the pipe fitting 104 is good.

[0051] See Figures 3 to 5 , in one embodiment, the bottom of the centering and guiding device 71 is configured with an elevation adjustment driver 711. The centering and guiding device 71 is installed on the second frame 102 through the elevation adjustment driver 711. The elevation adjustment driver 711 is preferably a hand-operated lead screw driving mechanism. The elevation adjustment driver 711 is used to adjust the distance between the centering and guiding device 71 and the pipe fitting guiding frame 66, so that the pipe fitting conveying channel 67 can be adapted to pipe fittings 104 with different outer diameters.

[0052] For the automatic press-fitting line of metal pipe fittings of the present invention, when the sleeve 103 and the pipe fitting are press-fitted and assembled, the following working process is included:

[0053] The sleeve transfer device 5 takes out the sleeve 103 from the sleeve feeding mechanism 3 and vertically places it downward onto the sleeving fixture 41 placed vertically by the sleeve feeding mechanism 4. Then, the flipping device 42 drives the sleeving fixture 41 to flip to the horizontal direction, and the pneumatic driving device 43 drives the sleeving fixture 41 to extend into contact with the first guiding channel 13 of the guiding and positioning member 11 in the closed state, realizing the horizontal guiding and positioning of the sleeve 103 on the sleeving fixture 41.

[0054] While the casing transfer device 5 feeds the casing feeding mechanism 4, the pipe fitting feeding mechanism 91 conveys the pipe fitting 103 in the feeding and placing area 917 to the pipe fitting conveying mechanism 6. The pipe fitting conveying mechanism 6 conveys it to one side of the centering and guiding device 71. Then, the transfer mechanism 8 transfers the pipe fitting 104 at the forefront of the sub-pipe conveying mechanism to the centering and guiding device 71. After the pipe fitting 104 is transferred to the centering and guiding device 71, the rear end pushing component 72 conveys the pipe fitting 104 along its length direction to the front end feeding mechanism 73, and under the action of the front end feeding mechanism 73, drives the pipe fitting 104 to pass through the pressing and processing channel 21 of the pressing machine 2 and contact the second guiding channel 14 of the guiding and positioning part 11 in the closed state, realizing the guiding and positioning of the pipe fitting 104 in the horizontal direction.

[0055] After the casing 103 and the pipe fitting 104 are respectively completed with the guiding and positioning in the horizontal direction, the guiding driver 12 drives the guiding and positioning part 11 to open, forming an avoidance space for the further insertion of the casing 103 into the pressing machine. Then, the translation driver 45 drives the casing 103 on the sleeving fixture 41 to pass through the avoidance space and enter the pressing and processing channel 21, and sleeve it on the end of the pipe fitting 104. Finally, the pressing machine 2 performs the pressing and assembling connection on the casing 103 and the pipe fitting 104.

[0056] After the pressing and assembling connection is completed, the front end feeding mechanism 73 pulls the pipe fitting 104 assembled with the casing 103 out of the pressing and processing channel 2 backward, and the rear end pushing component 72 pulls the processed pipe fitting 104 backward until it disengages from the front end feeding mechanism 73. Finally, the transfer mechanism 8 transfers the processed pipe fitting 104 on the centering and guiding device 71 to the blanking guiding frame 81, and slides it into the pipe fitting blanking and placing area 924 through the blanking guiding slope 811 of the blanking guiding frame 81 to complete the blanking.

[0057] According to the disclosure and teaching of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. Automatic pressing line for hardware pipe fittings, characterized in that Including: A press-fitting machine having a press-fitting channel passing through both ends thereof for press-fitting a sleeve onto the end of a pipe fitting; A feeding and discharging rack disposed at the rear side of the press-fitting channel for supporting the feeding and discharging of the pipe fitting; A pipe fitting conveying mechanism for moving the pipe fitting in the direction of the feeding and discharging rack; A material transferring mechanism for transferring the pipe fitting at the end of the pipe fitting conveying mechanism to the feeding and discharging rack; A pushing mechanism for pushing the front end of the pipe fitting to be processed on the feeding and discharging rack forward into the press-fitting channel and pulling the processed pipe fitting backward from the press-fitting channel; A sleeve feeding mechanism for conveying the sleeve; A sleeve delivering mechanism for transferring and sleeving the sleeve conveyed by the sleeve feeding mechanism onto the end of the pipe fitting of the press-fitting machine; A guiding fixture including a guiding and positioning member configured with an axially extending first guiding channel and a second guiding channel. The first guiding channel is used for guiding and positioning the sleeve pushed by the sleeve delivering mechanism to the pre-sleeving position. The second guiding channel is used for guiding and positioning the pipe fitting pushed by the front-end feeding mechanism to be pre-sleeved with the sleeve. Then, the sleeve in the pre-sleeved state is further sleeved onto the pipe fitting by the sleeve delivering mechanism and extends into the press-fitting channel; The sleeve delivering mechanism includes a sleeving fixture, a flipping device, a pneumatic driving device, and a translation device. The sleeving fixture is connected to the rotating end of the flipping device through the pneumatic driving device. The flipping device is installed on the translation device. The translation device drives the sleeving fixture to move in the direction relative to the press-fitting machine. The flipping device drives the sleeving fixture to flip between the vertical position for receiving the sleeve and the horizontal position for pushing the sleeve. The pneumatic driving device is used to push the sleeving fixture to the first position where the sleeve enters the first guiding channel. The translation device is used to further push the sleeving fixture into the press-fitting machine to sleeving the sleeve with the end of the pipe fitting in place at the second position, and move the sleeving fixture to the third position for receiving the sleeve conveyed by the sleeve feeding mechanism; The feeding and discharging rack is provided with a plurality of centering guides arranged at intervals for supporting and guiding the pipe fitting; The material transferring mechanism includes a material transferring member disposed under the centering guide and a material transferring driver for driving the vertical movement of the material transferring member. Along the feeding direction to the discharging direction on the upper side of the material transferring member, there are successively arranged a first guiding inclined surface and a second guiding inclined surface that slope downward; The leading end of the first guiding inclined surface extends to the end of the pipe fitting conveying mechanism. A first positioning portion is formed between the trailing end of the first guiding inclined surface and the leading end of the second guiding inclined surface. The first positioning portion is offset from the center of the centering guide towards the side of the pipe fitting conveying mechanism. The trailing end of the second guiding inclined surface extends to the other side of the centering guide; The material transferring driver drives the material transferring member to rise, and transfers the pipe fitting at the end of the pipe fitting conveying mechanism onto the first guiding inclined surface through the first guiding inclined surface and the first positioning portion. At the same time, the pipe fitting located on the centering guide is taken out to the other side through the second guiding inclined surface. The material transferring driver drives the material transferring member to descend, and places the pipe fitting on the first guiding inclined surface onto the centering guide; It further includes a pipe fitting feeding mechanism connected to the pipe fitting conveying mechanism. The pipe fitting feeding mechanism includes multiple groups of feeding conveyor components and a feeding driver for driving each feeding conveyor component to operate. The feeding conveyor component includes a winding wheel, a feeding belt, and a first bracket. Two ends of the feeding belt are respectively connected to the first bracket and the winding wheel, and are wound around a guiding wheel of the winding wheel at the head end of the pipe fitting conveying mechanism. The winding wheel is arranged below the pipe fitting conveying mechanism. The feeding belt forms a pipe fitting feeding and placing area for loading pipe fittings between the guiding wheel and the first bracket. The feeding driver realizes lifting the pipe fittings in the pipe fitting feeding and placing area upward and conveying them to the head end of the pipe fitting conveying mechanism by driving the winding wheel to wind the feeding belt. The pipe fitting conveying mechanism includes several supporting components for supporting pipe fittings arranged at intervals and a pipe fitting conveying component. The upper side of the supporting component has a supporting portion extending along the pipe fitting conveying direction. A feeding guiding inclined surface is arranged on one side of the supporting portion close to the feeding and discharging rack, and a feeding positioning portion is arranged at the end of the feeding guiding inclined surface. The pipe fitting conveying component includes a conveyor for driving the pipe fitting to move along the supporting portion.

2. The automatic pressing line for hardware pipe fittings according to claim 1, wherein The guiding jig includes a guiding positioning member formed by enclosing several blocks, and a guiding driver for driving the guiding positioning member to open and close. A first guiding positioning surface and a second guiding positioning surface are axially arranged inside each guiding positioning member; in the enclosed state of each module, each first guiding positioning surface encloses to form a first guiding channel, and each second guiding positioning surface encloses to form a second guiding channel. When each guiding positioning member is in the open state, the sleeve feeding mechanism further sleeves the sleeve onto the pipe fitting and extends it into the pressing channel.

3. The automatic pressing line for hardware pipe fittings according to claim 1, wherein The sleeve feeding mechanism is a vibrating disk feeding mechanism, and further includes a sleeve transfer device for transferring the sleeve conveyed to the front end of the sleeve feeding mechanism to the sleeve feeding mechanism. The sleeve feeding mechanism makes the direction of the joint end of the sleeve face upward. The sleeve transfer device includes a first clamp, a translation driving component for driving the first clamp to move horizontally, and a first vertical driver for driving the first clamp to move vertically.

4. The automatic pressing line for hardware pipe fittings according to claim 1, wherein It further includes a pressing mechanism. The pressing mechanism includes a front-end pressing rack and a rear-end pressing rack arranged at intervals above the front end and the rear end of the feeding and discharging rack. The front-end pressing rack and the rear-end pressing rack respectively include centering guiding wheels and second vertical drivers for driving the centering guiding wheels to move vertically. The pressing mechanism is used to cooperate with the centering guiding device to guide and position the pipe fitting.

5. The automatic pressing line for hardware pipe fittings according to claim 1, characterized in that, It further includes a first sensor and a second sensor arranged at intervals above the supporting component. The first sensor is used to detect the pipe fitting at the end of the feeding guiding inclined surface, and the second sensor is used to detect the pipe fitting at a preset distance from the end of the feeding guiding inclined surface. The pipe fitting conveying component conveys the pipe fitting in the direction of the end of the feeding guiding inclined surface according to the detection signals of the first sensor and the second sensor.

6. The automatic pressing line for hardware pipe fittings according to claim 1, wherein The pushing mechanism includes: A rear-end pushing component for pushing the front end of the pipe fitting to be processed on the centering guiding device forward to the front-end feeding mechanism and reaching a first preset position, and pulling the processed pipe fitting at the first preset position backward out of the front-end feeding mechanism. The rear-end pushing component includes a rear-end clamp and a rear-end driver for driving the rear-end clamp to reciprocate along the direction of the pressing machine. The front-end feeding mechanism is used to feed the pipe fittings to be processed at a first preset position forward into the pressing channel, and to pull the processed pipe fittings in the pressing channel backward to the first preset position. The front-end feeding mechanism includes a front-end clamping device and a front-end driver for driving the front-end clamping device to reciprocate along the direction of the press; The third inductor is used to detect whether the pipe fitting reaches the first preset position and provide feedback to the rear-end driver.

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