Supporting and discharging equipment and method for PVC pipe production line

Abstract

The invention discloses a supporting and discharging device of a PVC pipe production line, comprising: a supporting frame unit, which comprises a pipe production line and a PVC pipe located at an extrusion port of the pipe production line; the bearing discharging unit comprises a rotating rod rotationally installed on the lower portion of one side of the pipe production line and a second circular gear fixedly arranged at one end of the rotating rod in a sleeving mode and used for driving the rotating rod to rotate, N bearing sleeves are fixedly connected to the periphery of the rotating rod, and a negative pressure box is fixedly arranged on the back side of each bearing sleeve; a plurality of uniformly distributed negative pressure suction nozzles are embedded in the inner wall of the bearing sleeve; a supporting and discharging method for a PVC pipe production line comprises the following steps that S1, after the length of a PVC pipe pulled out by the pipe production line in cooperation with a traction clamp reaches the cutting requirement, an equipment switch is started, and a cutting knife automatically resets after the PVC pipe is cut off by the cutting knife; according to the invention, when the quality of a certain PVC pipe goes wrong, the PVC pipes of the previous batch and the next batch of the PVC pipe can be quickly inspected.

Description

Technical Field

[0001] The invention relates to the technical field of PVC pipe production, and in particular to a supporting and unloading device and method for a PVC pipe production line. Background Art

[0002] PVC pipe is a common plastic PVC pipe, which is widely used in water supply and drainage, wire and cable protection, agricultural irrigation, chemical pipelines and other fields. As the name suggests, the PVC pipe production line is a production line used to produce PVC pipes. It generally includes a twin-screw extruder, a spray cooling box, traction equipment and expansion equipment. After the PVC pipe production line is extruded, the extruded PVC pipe needs to be cut. The cut PVC pipe needs to be completed with the help of corresponding supporting and unloading equipment.

[0003] At present, in the production process of PVC pipes, when the cut PVC pipes are collected, they are supported and unloaded on the ground with the help of a supporting unloading rack. These pipes are stacked on the ground in a disorderly manner and cannot be sorted synchronously during the supporting and unloading process. If a PVC pipe has quality problems, it is difficult to quickly check the PVC pipes of the adjacent batches before and after it, which affects the production quality of the PVC pipes. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing supporting and unloading equipment and method of a PVC pipe production line, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a supporting and unloading device and method for a PVC pipe production line, which is suitable for solving the problem that when a certain PVC pipe has quality problems, it is difficult to quickly inspect the adjacent batches of PVC pipes before and after it, thus affecting the production quality of the PVC pipes.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a supporting and unloading device for a PVC pipe production line, comprising:

[0008] A supporting frame unit, comprising a pipe production line and PVC pipes at an extrusion port of the pipe production line, wherein a supporting seat is provided at a lower portion of one side of the pipe production line, and a plurality of groups of protective bars are fixedly provided on the supporting seat to divide the space above the supporting seat into N compartments for accommodating PVC pipes;

[0009] A supporting unloading unit, which includes a rotating rod rotatably installed at the lower part of one side of the pipe production line and a second circular gear fixedly sleeved at one end of the rotating rod for driving the rotating rod to rotate, wherein N supporting sleeves are fixedly connected around the rotating rod, a negative pressure box is fixedly arranged on the back side of each supporting sleeve, and a plurality of evenly distributed negative pressure suction nozzles are inlaid and installed on the inner wall of the supporting sleeve, each group of the negative pressure suction nozzles is connected to the corresponding negative pressure box, and a negative pressure pump is fixedly connected to the negative pressure box;

[0010] Uniform paving unit, which is used to control the movement of the support seat to evenly place the PVC pipes in the corresponding compartments;

[0011] The step control unit includes a plurality of elastic trigger switches arranged on the second circular gear and used to control the supporting sleeve to drive each PVC pipe to be placed in the corresponding compartment. The first extrusion block and the second extrusion block matching the elastic trigger switch are fixedly installed on the pipe production line.

[0012] As a preferred solution of the supporting and unloading equipment of a PVC pipe production line described in the present invention, wherein: the uniform paving unit includes two symmetrical support plates, the two support plates are fixedly connected by symmetrical guide rods, one of the support plates is fixedly installed with a second stepper motor, each of the elastic trigger switches is electrically connected to the second stepper motor, the output shaft of the second stepper motor passes through one of the support plates and is fixedly connected with a threaded rod, the threaded rod is threaded with a threaded sleeve, the sliding sleeve on the guide rod is provided with a guide sleeve, the threaded sleeve and the top ends of the two guide sleeves are jointly fixedly connected with a pad, the supporting seat is fixedly set on the pad, one of the support plates is fixedly installed with an elastic extrusion switch, and each of the guide sleeves and the threaded sleeves are fixedly connected with a connecting arm corresponding to the elastic extrusion switch.

[0013] As a preferred solution of the supporting and unloading equipment of the PVC pipe production line described in the present invention, wherein: a plurality of groups of evenly distributed positioning protrusions are fixedly provided on the pad, and the supporting seat is inserted on the plurality of positioning protrusions.

[0014] As a preferred solution of the supporting and unloading equipment of the PVC pipe production line described in the present invention, a cutting knife for cutting PVC pipes is installed at one end of the pipe production line, and a symmetrical support frame is fixedly installed on one side of the pipe production line, and each free end of the support frame is fixedly connected with a traction clamp corresponding to the PVC pipe.

[0015] As a preferred solution of the supporting and unloading equipment of the PVC pipe production line described in the present invention, the supporting frame unit also includes a blocking and anti-collision component, which includes a storage groove opened on the upper part of each protective rod close to the pipe groove, and a corresponding blocking plate is arranged in the storage groove, and the blocking plate is connected to the inner wall of the storage groove through symmetrical torsion springs, and a soft silicone pad is provided on the lower part of the upper wall of the blocking plate.

[0016] As a preferred solution of the supporting and unloading equipment of the PVC pipe production line described in the present invention, a plurality of evenly distributed electric telescopic rods are fixedly connected to the lower edge of the supporting seat, and a corresponding pressure dividing wheel is arranged at the lower end of each electric telescopic rod.

[0017] As a preferred solution of the supporting and unloading equipment of the PVC pipe production line described in the present invention, the pipe production line is also fixedly installed with a first stepper motor, and the output shaft of the first stepper motor is fixedly sleeved with a second circular gear meshing with the first circular gear, and the first circular gear and the second circular gear have the same diameter.

[0018] As a preferred solution of the supporting and unloading equipment of the PVC pipe production line described in the present invention, the number of the elastic trigger switches is the same as the number of the negative pressure pumps, the elastic trigger switches are used to control the cutting knife to cut the PVC pipe, and the elastic trigger switches are electrically connected to the first stepper motor and the corresponding negative pressure pump.

[0019] As a preferred solution of the supporting and unloading equipment of the PVC pipe production line described in the present invention, one end of each negative pressure box away from the supporting sleeve is fixedly connected to an exhaust pipe, and the negative pressure pump is fixedly connected to the exhaust pipe.

[0020] A supporting unloading method for a PVC pipe production line, the unloading method is applicable to any of the above unloading equipment, and the unloading method comprises the following steps:

[0021] S1: After the length of the PVC pipe pulled out by the pipe production line with the pulling clamp reaches the cutting requirement, the equipment switch is turned on. After the cutting knife cuts the PVC pipe, the cutting knife automatically resets, and the elastic trigger switch squeezes with the first extrusion block to control the negative pressure pump on the support sleeve located directly below the PVC pipe to start. The PVC pipe is firmly adsorbed by the support sleeve, and the first stepper motor controls the support sleeve to drive the PVC pipe to rotate a certain angle;

[0022] S2: When the next support sleeve rotates to the uppermost end, the elastic trigger switch corresponding to the support sleeve controls the cutting knife to cut the PVC pipe, and starts the negative pressure pump corresponding to the support sleeve, thus completing the support and transportation of the PVC pipe;

[0023] S3: When the first supporting sleeve carrying the PVC pipe moves to the bottom, the elastic trigger switch corresponding to the supporting sleeve is squeezed by the second squeezing block, that is, when the elastic trigger switch is squeezed an even number of times, it will turn off the corresponding negative pressure pump, and the negative pressure suction nozzle will no longer absorb the PVC pipe, and the PVC pipe will fall into the corresponding compartment. After the supporting sleeve completes one rotation, the corresponding compartment on the supporting seat also completes the collection of a layer of PVC pipe, and the elastic squeezing switch is squeezed, which will control the supporting seat to reset to the initial state through the second stepper motor.

[0024] The beneficial effects of the present invention are as follows: after the length of the PVC pipe pulled out by the pipe production line in cooperation with the pulling clamp reaches the cutting requirement, the cutting knife automatically resets after cutting the PVC pipe, the elastic trigger switch controls the negative pressure pump on the supporting sleeve located directly below the PVC pipe to start, the PVC pipe is firmly adsorbed by the supporting sleeve, and the first stepper motor controls the supporting sleeve to drive the PVC pipe to rotate a certain angle;

[0025] When the first supporting sleeve carrying the PVC pipe moves to the bottom, when the elastic trigger switch is squeezed an even number of times, it will close the corresponding negative pressure pump, and the PVC pipe will fall into the corresponding compartment. After the supporting sleeve completes one rotation, the corresponding compartment on the supporting seat also completes the collection of a layer of PVC pipe. The elastic squeezing switch is squeezed, and it will control the supporting seat to reset to the initial state through the second stepper motor. The cut PVC pipes can be collected and sorted. When there is a problem with the quality of a certain PVC pipe, the PVC pipes of the previous and next batches can be quickly checked to ensure the production quality of the PVC pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0027] Figure 1 This is a schematic diagram of the overall structure of a supporting and unloading device for a PVC pipe production line proposed by the present invention;

[0028] Figure 2 This is a schematic structural diagram of a supporting and unloading unit of a supporting and unloading device for a PVC pipe production line proposed by the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of a step control unit of a supporting and unloading device of a PVC pipe production line proposed by the present invention;

[0030] Figure 4This is a schematic diagram of the matching structure of a supporting seat, a protective rod and a support plate of a supporting and unloading device of a PVC pipe production line proposed by the present invention;

[0031] Figure 5 This is a schematic diagram of the uniform spreading unit structure of a supporting and unloading device of a PVC pipe production line proposed by the present invention;

[0032] Figure 6 This is a schematic diagram of the coordination structure of an elastic extrusion switch, a support plate and a connecting arm of a supporting and unloading device of a PVC pipe production line proposed by the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of a blocking and anti-collision component of a supporting and unloading device of a PVC pipe production line proposed by the present invention;

[0034] Figure 8 The present invention provides a schematic diagram of the steps of a supporting and unloading method for a PVC pipe production line.

[0035] Description of the drawings: 100 supporting frame unit, 101 pipe production line, 102 PVC pipe, 103 cutting knife, 104 support frame, 105 traction clamp, 106 supporting seat, 107 protection rod, 108 electric telescopic rod, 109 pressure wheel, 110 blocking anti-collision component, 110a blocking plate, 110b torsion spring, 110c soft silicone pad, 200 supporting unloading unit, 201 rotating rod, 202 first stepper motor, 203 first circular gear, 204 second circular gear Wheel, 205 supporting sleeve, 206 negative pressure box, 207 negative pressure nozzle, 208 exhaust pipe, 209 negative pressure pump, 300 uniform paving unit, 301 support plate, 302 second stepping motor, 303 threaded rod, 304 threaded sleeve, 305 guide rod, 306 guide sleeve, 307 pad, 308 positioning protrusion, 309 elastic extrusion switch, 310 connecting arm, 400 stepping control unit, 401 elastic trigger switch, 402 first extrusion block, 403 second extrusion block. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0040] Embodiment 1

[0041] Reference Figure 1-Figure 6 and Figure 8 , which is an embodiment of the present invention, provides a supporting and unloading device for a PVC pipe production line, including: a supporting frame unit 100, a supporting and unloading unit 200, a uniform spreading unit 300 and a step control unit 400.

[0042] The supporting frame unit 100 includes a pipe production line 101 and a PVC pipe 102 located at the extrusion port of the pipe production line 101. In the present invention, the pipe production line 101 generally includes a twin-screw extruder, a spray cooling water tank, a tractor and other equipment. The above equipment is indispensable and very mature equipment in the production of PVC pipes 102. Therefore, the models and specific principles of these equipment are not introduced in detail in the present invention. A supporting seat 106 is provided at the lower part of one side of the pipe production line 101. A plurality of groups of symmetrical protective rods 107 are fixedly provided on the supporting seat 106. The plurality of groups of protective rods 107 divide the space above the supporting seat 106 into N compartments for accommodating the PVC pipes 102.

[0043] Specifically, refer to Figure 2The supporting and unloading unit 200 includes a rotating rod 201 rotatably mounted at the lower part of one side of the pipe production line 101 and a second circular gear 204 fixedly sleeved at one end of the rotating rod 201 for driving the rotating rod 201 to rotate. A first stepper motor 202 is also fixedly mounted on the pipe production line 101. In the present invention, the first stepper motor 202 and the second stepper motor 302 are both a type of stepper motor. A stepper motor is an electric motor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. Each time a pulse signal is input, the rotor rotates an angle or moves forward one step. It belongs to a very mature prior art, and its working principle is not described in detail here. A second circular gear 204 meshing with the first circular gear 203 is fixedly sleeved on the output shaft of the first stepper motor 202, and the first circular gear 203 and the second circular gear 204 have the same diameter. N supporting sleeves 205 are fixedly connected around the rotating rod 201, and each supporting sleeve 205 is fixedly connected to the rotating rod 201 through a symmetrically positioned connecting rod.

[0044] A negative pressure box 206 is fixedly arranged on the back side of each supporting sleeve 205, and a plurality of evenly distributed negative pressure suction nozzles 207 are inlaid and installed on the inner wall of the supporting sleeve 205, and each group of negative pressure suction nozzles 207 is connected to the corresponding negative pressure box 206, and an exhaust pipe 208 is fixedly connected to the negative pressure box 206, and a negative pressure pump 209 connected to the exhaust pipe 208 is fixedly installed on the negative pressure box 206. The negative pressure pump 209 is a device that can generate a pressure lower than the atmospheric pressure in a closed system, and is widely used in vacuum adsorption, air extraction, transportation, filtration, vacuum packaging, medical equipment and other fields. Its working principle is usually based on mechanical compression, air flow power or molecular motion to reduce the internal pressure of the system to form a negative pressure environment. The negative pressure pump 209 in the present invention can adopt a side flow vacuum pump, which belongs to a very mature prior art, and its working principle is not described in detail here;

[0045] Furthermore, the uniform spreading unit 300 is used to control the movement of the supporting seat 106 to evenly place the PVC pipe 102 in the corresponding compartment;

[0046] Further, refer to Figure 5 and Figure 6The uniform paving unit 300 includes two symmetrical support plates 301, and the two support plates 301 are fixedly connected by symmetrical guide rods 305. A second stepper motor 302 is fixedly installed on one of the support plates 301. The output shaft of the second stepper motor 302 passes through one of the support plates 301 and is fixedly connected with a threaded rod 303. A threaded sleeve 304 is threadedly connected to the threaded rod 303. A guide sleeve 306 is slidably sleeved on the guide rod 305. The threaded sleeve 304 and the top of the two guide sleeves 306 are fixedly connected with a pad 306. 07, the supporting seat 106 is fixedly set on the pad 307, and a plurality of groups of evenly distributed positioning protrusions 308 are fixedly set on the pad 307. The supporting seat 106 is inserted on the plurality of positioning protrusions 308. Through the setting of the positioning protrusions 308, it is convenient to separate the supporting seat 106 from the supporting plate 301 and the second stepping motor 302 and other components. An elastic squeezing switch 309 is fixedly installed on one of the supporting plates 301, and each guide sleeve 306 and the threaded sleeve 304 are fixedly connected with a connecting arm 310 corresponding to the elastic squeezing switch 309.

[0047] A plurality of evenly distributed electric telescopic rods 108 are fixedly connected to the edge of the lower end of the supporting seat 106, and a corresponding pressure dividing wheel 109 is arranged at the lower end of each electric telescopic rod 108. Through the arrangement of the electric telescopic rod 108, when the pipe is released from the upper part of the supporting seat 106, the electric telescopic rod 108 can be controlled to extend and then the pressure dividing wheel 109 can be controlled to press against the ground. The pressure dividing wheel 109 can share the pressure on the pad 307, and effectively solves the defect that the guide rod 305 and the threaded rod 303 are deformed due to excessive pressure on the threaded sleeve 304 and the guide sleeve 306. After the supporting and unloading is completed, the electric telescopic rod 108 is controlled to continue to extend, so that the supporting seat 106 is separated from the pad 307, so as to facilitate the subsequent transfer of the supporting seat 106 loaded with PVC pipes 102, thereby facilitating a new round of supporting and unloading of the PVC pipes 102 produced by the pipe production line 101.

[0048] Specifically, refer to Figure 3 The step control unit 400 includes a plurality of elastic trigger switches 401 fixedly mounted on the second circular gear 204. The number of the elastic trigger switches 401 is the same as the number of the negative pressure pumps 209. The elastic trigger switches 401 are used to control the cutting knife 103 to cut the PVC pipe 102. The elastic trigger switches 401 are electrically connected to the first stepper motor 202, the second stepper motor 302 and the corresponding negative pressure pump 209. The first extrusion block 402 and the second extrusion block 403 matching the elastic trigger switch 401 are fixedly mounted on the pipe production line 101.

[0049] A supporting unloading method for a PVC pipe production line, the unloading method is applicable to any of the above unloading equipment, and the unloading method comprises the following steps:

[0050] S1: After the length of the PVC pipe 102 pulled out by the pipe production line 101 in cooperation with the pulling clamp 105 reaches the cutting requirement, the equipment switch is started, and the cutting knife 103 automatically resets after cutting the PVC pipe 102. The first stepper motor 202 drives the second circular gear 204 to rotate through the first circular gear 203, and the elastic trigger switch 401 closest to the first extrusion block 402 on the second circular gear 204 is squeezed by the first extrusion block 402. The elastic trigger switch 401 controls the negative pressure pump 209 on the supporting sleeve 205 located directly below the PVC pipe 102 to start, and the PVC pipe 102 is firmly adsorbed by the supporting sleeve 205. At the same time, the elastic trigger switch 401 controls the supporting sleeve 205 through the first stepper motor 203 to drive the PVC pipe 102 to rotate a certain angle;

[0051] S2: When the next support sleeve 205 rotates to the uppermost end, the elastic trigger switch 401 corresponding to the support sleeve 205 controls the cutting knife 103 to cut the PVC pipe 102, and starts the negative pressure pump 209 corresponding to the support sleeve 205, and synchronously controls the rotating rod 201 and the support sleeve 205 to rotate a certain angle;

[0052] S3: When the first supporting sleeve 205 carrying the PVC pipe 102 moves to the bottom, the elastic trigger switch 401 corresponding to the supporting sleeve 205 is squeezed by the second squeezing block 403, that is, when the elastic trigger switch 401 is squeezed an even number of times (in the present invention, some elastic trigger switches 401 will start counting only when they are squeezed for the first time with the first squeezing block 402), it will turn off the corresponding negative pressure pump 209, and the negative pressure suction nozzle 207 will no longer absorb the PVC pipe 102. The PVC pipe 102 falls into the corresponding compartment due to its own gravity. After that, when each elastic trigger switch 401 is squeezed an even number of times, it will drive the threaded sleeve 304 and the supporting seat 106 to move a certain distance through the second stepping motor 302, so that the compartment corresponding to each P At the position where the VC pipe 102 falls, after some supporting sleeves 205 complete one circle of unloading rotation, the corresponding compartment on the supporting seat 106 also completes the collection of a layer of PVC pipe 102. At this time, the threaded sleeve 304 drives the connecting arm 310 to move to the top of the threaded rod 303, and the connecting arm 310 squeezes the elastic squeezing switch 309, which will control the supporting seat 106 to reset to the initial state through the second stepper motor 302. There is no need for staff to keep a close eye on the PVC pipe 102 collection container all the time, and the cut PVC pipes 102 can be collected and sorted. When there is a problem with the quality of a certain PVC pipe 102, the PVC pipes 102 before and after the PVC pipe 102 can be quickly checked, thereby ensuring the production quality of the PVC pipe 102.

[0053] Embodiment 2

[0054] Reference Figure 7 , which is different from the first embodiment in that: the supporting frame unit 100 also includes a blocking and anti-collision component 110, which includes a storage groove opened at the upper part of each protective rod 107 close to the pipe groove, and a corresponding blocking plate 110a is arranged in the storage groove, and the blocking plate 110a is connected to the inner wall of the storage groove through a symmetrical torsion spring 110b, and a soft silicone pad 110c is provided on the lower part of the upper side wall of the blocking plate 110a; when the PVC pipe on the supporting sleeve 205 falls freely under its own gravity, it is blocked by the blocking plate 110a and the soft silicone pad 110c and will not collide with the PVC pipe 102 collected below at the first time, thereby reducing the damage caused by mutual collision of the PVC pipe 102 and reducing the scrap rate of the production of the PVC pipe 102.

[0055] Embodiment 3

[0056] Reference Figure 1 , is an embodiment of the present invention, which is different from the previous embodiment in that:

[0057] A cutting knife 103 for cutting the PVC pipe 102 is installed at one end of the pipe production line 101. The cutting knife 103 is an inherent component of the pipe production line 101 and is electrically connected to the elastic trigger switch 401. Each elastic trigger switch 401 can control the cutting knife 103 to complete a "cutting-resetting" process.

[0058] A symmetrical support frame 104 is fixedly installed on one side of the pipe production line 101, and a traction clamp 105 corresponding to the PVC pipe 102 is fixedly connected to the free end of each support frame 104. Through the coordinated use of the support frame 104 and the traction clamp 105, the PVC pipe 102 produced by the pipe production line 101 can be guided and pulled to ensure that the PVC pipe 102 can smoothly fall into the corresponding supporting sleeve 205, which is convenient for the subsequent transportation of the PVC pipe 102. Each traction clamp 105 is arranged in an arc shape, and the inner wall pad of the traction clamp 105 is provided with a wear-resistant pad of uniform thickness. The provision of the wear-resistant pad effectively solves the defect that the inner wall of the traction clamp 105 is severely worn after long-term use, thereby affecting the subsequent traction and guiding effect of the PVC pipe 102.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A supporting and unloading device for a PVC pipe production line, characterized in that: include: A supporting frame unit (100) comprises a pipe production line (101) and a PVC pipe (102) located at an extrusion outlet of the pipe production line (101); a supporting seat (106) is provided at a lower portion of one side of the pipe production line (101); and a plurality of groups of protective rods (107) are fixedly provided on the supporting seat (106) for dividing the space above the supporting seat (106) into N compartments for accommodating the PVC pipe (102); A supporting unloading unit (200) comprises a rotating rod (201) rotatably mounted at the lower part of one side of a pipe production line (101) and a second circular gear (204) fixedly sleeved at one end of the rotating rod (201) for driving the rotating rod (201) to rotate, wherein N supporting sleeves (205) are fixedly connected around the rotating rod (201), a negative pressure box (206) is fixedly arranged on the back side of each supporting sleeve (205), and a plurality of negative pressure suction nozzles (207) connected to the negative pressure box (206) are embedded and mounted on the inner wall of the supporting sleeve (205), and a negative pressure pump (209) is fixedly connected to the negative pressure box (206); A uniform spreading unit (300) is used to control the movement of the supporting seat (106) to evenly place the PVC pipe (102) in the corresponding compartment; A step control unit (400) includes a plurality of elastic trigger switches (401) arranged on a second circular gear (204) and used to control a supporting sleeve (205) to drive each PVC pipe (102) to be placed in a corresponding compartment. A first extrusion block (402) and a second extrusion block (403) matching the elastic trigger switches (401) are fixedly installed on the pipe production line (101).

2. The supporting and unloading equipment for a PVC pipe production line according to claim 1 is characterized in that: The uniform paving unit (300) comprises two symmetrical support plates (301), the two support plates (301) are fixedly connected via symmetrical guide rods (305), one of the support plates (301) is fixedly mounted with a second stepping motor (302), each of the elastic trigger switches (401) is electrically connected to the second stepping motor (302), the output shaft of the second stepping motor (302) passes through one of the support plates (301) and is fixedly connected with a threaded rod (303), the threaded rod (303) is A threaded sleeve (304) is threadedly connected, a guide sleeve (306) is slidably sleeved on the guide rod (305), a pad (307) is fixedly connected to the top of the threaded sleeve (304) and the two guide sleeves (306), the support seat (106) is fixedly arranged on the pad (307), an elastic extrusion switch (309) is fixedly installed on one of the support plates (301), and each of the guide sleeves (306) and the threaded sleeve (304) is fixedly connected to a connecting arm (310) corresponding to the elastic extrusion switch (309).

3. The supporting and unloading equipment for a PVC pipe production line according to claim 2 is characterized in that: The pad (307) is fixedly provided with a plurality of evenly distributed positioning protrusions (308), and the supporting seat (106) is inserted on the plurality of positioning protrusions (308).

4. The supporting and unloading equipment for a PVC pipe production line according to claim 1 is characterized in that: A cutting knife (103) for cutting PVC pipes (102) is installed on one end of the pipe production line (101), and symmetrical support frames (104) are fixedly installed on one side of the pipe production line (101), and a traction clamp (105) corresponding to the PVC pipe (102) is fixedly connected to the free end of each support frame (104).

5. The supporting and unloading equipment for a PVC pipe production line according to claim 1 is characterized in that: The supporting frame unit (100) further comprises a blocking and anti-collision assembly (110), which comprises a storage groove provided at the upper part of one side of each protection rod (107) close to the pipe groove, wherein a corresponding blocking plate (110a) is arranged in the storage groove, wherein the blocking plate (110a) is connected to the inner wall of the storage groove via symmetrically positioned torsion springs (110b), and a soft silicone pad (110c) is provided at the lower part of the upper side wall of the blocking plate (110a).

6. The supporting and unloading equipment for a PVC pipe production line according to claim 1 is characterized in that: A plurality of evenly distributed electric telescopic rods (108) are fixedly connected to the lower edge of the supporting seat (106), and a corresponding pressure dividing wheel (109) is arranged at the lower end of each electric telescopic rod (108).

7. The supporting and unloading equipment for a PVC pipe production line according to claim 1 is characterized in that: The pipe production line (101) is also fixedly mounted with a first stepper motor (202), and a second circular gear (204) meshing with the first circular gear (203) is fixedly sleeved on the output shaft of the first stepper motor (202), and the first circular gear (203) and the second circular gear (204) have the same diameter.

8. The supporting and unloading equipment for a PVC pipe production line according to claim 4 is characterized in that: The number of the elastic trigger switches (401) is the same as the number of the negative pressure pumps (209). The elastic trigger switches (401) are used to control the cutting knife (103) to cut the PVC pipe (102), and the elastic trigger switches (401) are electrically connected to the first stepper motor (202) and the corresponding negative pressure pump (209).

9. The supporting and unloading equipment for a PVC pipe production line according to claim 1, characterized in that: One end of each negative pressure box (206) away from the supporting sleeve (205) is fixedly connected to an exhaust pipe (208), and the negative pressure pump (209) is fixedly connected to the exhaust pipe (208).

10. A supporting unloading method for a PVC pipe production line, the unloading method is applicable to any unloading device in claims 1-9 above, characterized in that: The unloading method comprises the following steps: S1: After the length of the PVC pipe (102) pulled out by the pipe production line (101) in cooperation with the pulling clamp (105) reaches the cutting requirement, the equipment switch is started, and after the cutting knife (103) cuts the PVC pipe (102), the cutting knife (103) automatically resets, and the elastic trigger switch (401) is squeezed with the first squeezing block (402), and the negative pressure pump (209) on the supporting sleeve (205) located directly below the PVC pipe (102) is controlled to start, and the PVC pipe (102) is firmly adsorbed by the supporting sleeve (205), and the first stepper motor (203) controls the supporting sleeve (205) to drive the PVC pipe (102) to rotate a certain angle; S2: When the next supporting sleeve (205) rotates to the uppermost end, the elastic trigger switch (401) corresponding to the supporting sleeve (205) controls the cutting knife (103) to cut the PVC pipe (102), and starts the negative pressure pump (209) corresponding to the supporting sleeve (205), thereby completing the supporting and transporting of the PVC pipe (102); S3: When the first supporting sleeve (205) carrying the PVC pipe (102) moves to the lowermost end, the elastic trigger switch (401) corresponding to the supporting sleeve (205) is squeezed by the second squeezing block (403), that is, when the elastic trigger switch (401) is squeezed an even number of times, it will turn off the corresponding negative pressure pump (209), and the negative pressure suction nozzle (207) will no longer absorb the PVC pipe (102), and the PVC pipe (102) will fall into the corresponding compartment. After the supporting sleeve (205) completes one rotation, the corresponding compartment on the supporting seat (106) also completes the collection of a layer of PVC pipe (102), and the elastic squeezing switch (309) is squeezed, which will control the supporting seat (106) to reset to the initial state through the second stepping motor (302).

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