Material turning frame for PVC (polyvinyl chloride) hose production

Abstract

The utility model discloses a material turning frame for PVC (polyvinyl chloride) hose production, which relates to the technical field of pipe production equipment, and comprises a fixed frame, a hose turning assembly and a hose feeding and taking mechanism are arranged on the fixed frame, the hose feeding and taking mechanism is arranged at the lower part of the hose turning assembly, the hose turning assembly comprises a plurality of movable racks, and the movable racks are arranged on the fixed frame. A driving shaft is fixedly connected to the end, close to the fixing frame, of each driving gear and penetrates through the right side of the fixing frame, a second gear is fixedly connected to the left end of each driving shaft, a second rotating shaft is fixedly connected to the left end of each second gear, and a second rotating roller is fixedly connected to the middle of the outer end of each second rotating shaft; a first rotating shaft is fixedly connected to the left end of the first gear, and a first rotating roller is fixedly connected to the middle of the outer end of the first rotating shaft. According to the PVC hose overturning device, the action of automatically overturning a plurality of PVC hoses conveniently and rapidly is achieved, and the overturning efficiency of the PVC hoses is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe production equipment, specifically a turning rack for PVC hose production. Background Technology

[0002] Polyvinyl chloride (PVC) is a polymer material in which one hydrogen atom in polyethylene is replaced by one chlorine atom. PVC is an amorphous white powder with low branching. Industrially produced PVC typically has a molecular weight ranging from 50,000 to 120,000, exhibiting significant polydispersity, with the molecular weight increasing as the polymerization temperature decreases. It has no fixed melting point; it begins to soften at 80–85°C, becomes viscoelastic at 130°C, and transitions to a viscous flow state at 160–180°C. Its tensile strength is approximately 60 MPa, and its impact strength is 5–10 kJ / m². It possesses excellent dielectric properties. However, it exhibits poor stability to light and heat. At temperatures above 100°C or after prolonged exposure to sunlight, it decomposes to produce hydrogen chloride, which then autocatalytically decomposes and causes discoloration. In practical applications, stabilizers must be added to improve its stability to heat and light.

[0003] For example, utility model patent CN207973184U discloses a material turning rack for PVC pipe production, including a supporting side plate, a turning rack body, a lower stabilizing frame, a first stop door, a second stop door, and traveling wheels. A support plate is installed on the lower side of the supporting side plate, and the turning rack body is mounted on one upper side of the supporting side plate via a rotating shaft. The turning rack body has a metal mesh structure, and insertion interfaces are provided on both sides of the turning rack body. The first stop door and the second stop door are respectively inserted into the insertion interfaces. A motor is driven to one end of the rotating shaft. A lower stabilizing frame is inserted into one side of the middle of the side plate. Two lower stabilizing frames are provided. One side of the flipping frame body is provided with an opening. This utility model is a flipping frame for PVC pipe production. The flipping frame body is rotated by a motor-driven rotating shaft, which facilitates the flipping of PVC pipes in production. The flipping is quick and convenient. However, there is a problem that it is not convenient to flip multiple PVC hoses at the same time, which will cause a decrease in the flipping efficiency of the device for PVC hoses. In the end, the flipping efficiency of the device is low. To this end, we propose a flipping frame for PVC hose production. Utility Model Content

[0004] The purpose of this utility model is to provide a turning rack for PVC hose production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PVC hose turning frame, comprising a fixed frame, on which a hose turning assembly and a hose feeding and picking mechanism are provided. The hose feeding and picking mechanism is located below the hose turning assembly. The hose turning assembly includes a movable rack, and multiple movable racks are provided. Each movable rack has a drive gear meshing at its upper end. A drive shaft is fixedly connected to one end of the drive gear near the fixed frame, and the drive shaft passes through the right side of the fixed frame. A second gear is fixedly connected to the left end of the drive shaft. A second rotating shaft is fixedly connected to the left end of the second gear. A second rotating roller is fixedly connected to the middle of the outer end of the second rotating shaft. A first gear is meshed with the rear side of the second gear. A first rotating shaft is fixedly connected to the left end of the first gear. A first rotating roller is fixedly connected to the middle of the outer end of the first rotating shaft. Matching frames are rotatably connected to the outer ends of the first and second rotating shafts via bearings. A fixed plate is fixedly connected to the lower right side of the matching frame. The right end of the fixed plate is fixedly connected to the inner end of the fixed frame. The left end of the matching frame is fixedly connected to the inner end of the fixed frame.

[0006] Preferably, a contact plate is fixedly connected between each of the two adjacent movable racks, the rear end of the rear movable rack is fixedly connected to the output end of the first electric push rod, the rear end of the first electric push rod is fixedly connected to a support frame, and the left end of the support frame is fixedly connected to a fixing frame.

[0007] Preferably, the hose feeding and picking mechanism includes a fixed ring fixedly connected to the middle of the lower end of the fixed frame, a bidirectional stepper motor fixedly connected to the middle of the inner end of the fixed ring, a rotating rod fixedly connected to the output end of the bidirectional stepper motor, and a threaded groove opened at the outer end of the rotating rod. A movable sleeve is threadedly connected to the outer end of the rotating rod, a hose clamping assembly is provided at the upper end of the movable sleeve, and a guide post is slidably connected to the surface of the movable sleeve.

[0008] Preferably, the hose clamping assembly includes a mounting sleeve fixedly connected to the upper end of the movable sleeve, and a plurality of second electric push rods distributed in a circular pattern are fixedly connected to the inner end of the mounting sleeve, and a clamping arc plate is fixedly connected to the output end of the second electric push rods.

[0009] Preferably, a rotation limiting plate is fixedly connected to the end of the rotating rod away from the bidirectional stepper motor, and the outer diameter of the rotation limiting plate is larger than the outer diameter of the rotating rod.

[0010] Preferably, the guide post passes through the movable sleeve, and the end of the guide post near the fixed frame is fixedly connected to the fixed frame.

[0011] Preferably, each corner of the lower end of the fixed frame is fixedly connected to a bracket, and each bracket is fixedly connected to an anti-slip pad at its lower end.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Equipped with a fixed frame, a hose flipping assembly, a bracket, and an anti-slip pad, this device can be powered by an external power source via a first electric push rod. The output end of the first electric push rod drives a moving rack and a contact plate to move forward. The moving rack then drives a drive gear to rotate, which in turn drives a second gear. The second gear then drives a second rotating shaft and a second rotating roller to rotate, and subsequently, the second gear drives a first gear to reverse direction. This reverse motion of the first and second rotating rollers enables automatic flipping of the PVC hoses located above them. This invention allows for convenient automatic flipping of multiple PVC hoses, improving the flipping efficiency.

[0014] 2. Equipped with a hose feeding and unloading mechanism, the hose clamping assembly can center and clamp PVC hoses of different outer diameters. Then, an external power source powers a bidirectional stepper motor, which in turn drives a rotating rod to rotate, causing the moving sleeves to move closer together. The moving sleeves then move the hose clamping assembly, moving the PVC hoses to the upper part of the fixed frame. During this process, the moving sleeves and guide posts slide relative to each other, enabling convenient feeding and unloading of PVC hoses of different outer diameters, thus improving ease of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the flexible hose flipping assembly of this utility model;

[0017] Figure 3 This is a schematic diagram of the flexible hose feeding and picking mechanism of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged view of the structure of part A in the middle.

[0019] In the diagram: 1. Fixed frame; 2. Hose flipping assembly; 21. Fixed plate; 22. Matching frame; 23. First rotating roller; 24. First rotating shaft; 25. First gear; 26. Second gear; 27. Drive shaft; 28. Drive gear; 29. ​​Moving rack; 210. Contact plate; 211. First electric push rod; 212. Support frame; 213. Second rotating shaft; 214. Second rotating roller; 3. Hose feeding and picking mechanism; 31. Fixed ring; 32. Bidirectional stepper motor; 33. Rotating rod; 34. Rotation limit plate; 35. Moving sleeve; 36. Guide post; 37. Hose clamping assembly; 371. Mounting sleeve; 372. Second electric push rod; 373. Clamping arc plate; 4. Bracket; 5. Anti-slip pad. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a PVC hose turning frame, including a fixed frame 1, on which a hose turning assembly 2 and a hose feeding and picking mechanism 3 are arranged. The hose feeding and picking mechanism 3 is located below the hose turning assembly 2. The hose turning assembly 2 includes multiple movable racks 29, each of which is meshed with a drive gear 28 at its upper end. A drive shaft 27 is fixedly connected to one end of the drive gear 28 near the fixed frame 1, and the drive shaft 27 passes through the right side of the fixed frame 1. A second gear 26 is fixedly connected to the left end of the drive shaft 27. A second rotating shaft 213 is fixedly connected to the left end of gear 26. A second rotating roller 214 is fixedly connected to the middle of the outer end of the second rotating shaft 213. A first gear 25 is meshed with the rear side of the second gear 26. A first rotating shaft 24 is fixedly connected to the left end of the first gear 25. A first rotating roller 23 is fixedly connected to the middle of the outer end of the first rotating shaft 24. The outer ends of the first rotating shaft 24 and the second rotating shaft 213 are rotatably connected to a matching frame 22 through bearings. A fixing plate 21 is fixedly connected to the lower right side of the matching frame 22. The right end of the fixing plate 21 is fixedly connected to the inner end of the fixing frame 1. The left end of the matching frame 22 is fixedly connected to the inner end of the fixing frame 1.

[0022] In this embodiment, a contact plate 210 is fixedly connected between each of two adjacent moving racks 29. The rear end of the rear moving rack 29 is fixedly connected to the output end of the first electric push rod 211. The rear end of the first electric push rod 211 is fixedly connected to a support frame 212. The left end of the support frame 212 is fixedly connected to a fixing frame 1.

[0023] Specifically, the first electric push rod 211 drives the moving rack 29 and the contact plate 210 to move in position.

[0024] In this embodiment, the hose feeding and picking mechanism 3 includes a fixed ring 31 fixedly connected to the middle of the lower end of the fixed frame 1. A bidirectional stepper motor 32 is fixedly connected to the middle of the inner end of the fixed ring 31. A rotating rod 33 is fixedly connected to the output end of the bidirectional stepper motor 32, and a threaded groove is opened at the outer end of the rotating rod 33. A movable sleeve 35 is threadedly connected to the outer end of the rotating rod 33. A hose clamping assembly 37 is provided at the upper end of the movable sleeve 35, and a guide post 36 is slidably connected to the surface of the movable sleeve 35.

[0025] Specifically, the hose feeding and picking mechanism 3 can perform a centering clamping action on PVC hoses of different outer diameters via the hose clamping assembly 37. Next, the bidirectional stepper motor 32 can be powered by an external power source. At this time, the output end of the bidirectional stepper motor 32 drives the rotating rod 33 to rotate, which in turn drives the moving sleeve 35 to move closer together. The moving sleeve 35 drives the hose clamping assembly 37 to move. The PVC hose is then moved to the upper part of the fixed frame 1. During this process, the moving sleeve 35 and the guide post 36 slide relative to each other, realizing convenient feeding and picking of PVC hoses of different outer diameters, thus improving convenience.

[0026] In this embodiment, the hose clamping assembly 37 includes a mounting sleeve 371 fixedly connected to the upper end of the movable sleeve 35. Multiple second electric push rods 372 distributed in a circular pattern are fixedly connected to the inner end of the mounting sleeve 371. A clamping arc plate 373 is fixedly connected to the output end of the second electric push rods 372.

[0027] Specifically, the second electric push rod 372 is powered by an external power source. At this time, the output end of the second electric push rod 372 drives the clamping arc plate 373 to perform a centering clamping action on PVC hoses of different outer diameters.

[0028] In this embodiment, a rotation limiting plate 34 is fixedly connected to the end of the rotating rod 33 away from the bidirectional stepper motor 32, and the outer diameter of the rotation limiting plate 34 is larger than the outer diameter of the rotating rod 33.

[0029] Specifically, the rotating limit plate 34 is provided to limit the maximum displacement of the movable sleeve 35.

[0030] In this embodiment, the guide post 36 passes through the movable sleeve 35, and the end of the guide post 36 near the fixed frame 1 is fixedly connected to the fixed frame 1.

[0031] Specifically, ensure that the guide post 36 does not interfere with the movable sleeve 35.

[0032] In this embodiment, each corner of the lower end of the fixed frame 1 is fixedly connected to a bracket 4, and each bracket 4 is fixedly connected to an anti-slip pad 5 at its lower end.

[0033] Specifically, the bracket 4 and anti-slip pad 5 are provided to provide stable support for the fixed frame 1.

[0034] Working principle: When the PVC hose is being turned over, the hose clamping assembly 37 first clamps PVC hoses of different outer diameters in a centered manner. Next, the bidirectional stepper motor 32 is powered by an external power source. The output of the bidirectional stepper motor 32 drives the rotating rod 33 to rotate, which in turn drives the moving sleeve 35 to move closer together. The moving sleeve 35 then moves the hose clamping assembly 37, moving the PVC hose to the upper part of the fixed frame 1. During this process, the moving sleeve 35 and the guide post 36 slide relative to each other. Next, the first electric push rod 211 is powered by an external power source. The output of the first electric push rod 211 drives the moving rack 29 and the contact plate 210 to move... During the forward movement, the moving rack 29 drives the drive gear 28 to rotate, which in turn drives the second gear 26 to rotate. The second gear 26 then drives the second rotating shaft 213 and the second rotating roller 214 to rotate. The second gear 26 then drives the first gear 25 to reverse, which in turn drives the first rotating shaft 24 and the first rotating roller 23 to reverse. Through the reverse movement of the first rotating roller 23 and the second rotating roller 214, the PVC hoses located on top of the first rotating roller 23 and the second rotating roller 214 can be automatically flipped. This utility model realizes the convenient automatic flipping of multiple PVC hoses, improving the flipping efficiency of PVC hoses.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A turning rack for producing PVC hoses, comprising a fixing frame (1), characterized in that: The fixed frame (1) is provided with a hose flipping assembly (2) and a hose feeding and picking mechanism (3). The hose feeding and picking mechanism (3) is located at the lower part of the hose flipping assembly (2). The hose flipping assembly (2) includes a moving rack (29). Multiple moving racks (29) are provided. Each moving rack (29) is meshed with a drive gear (28) at its upper end. The drive gear (28) is fixedly connected to a drive shaft (27) at one end near the fixed frame (1), and the drive shaft (27) passes through the right side of the fixed frame (1). A second gear (26) is fixedly connected to the left end of the drive shaft (27), and a second rotating shaft (21) is fixedly connected to the left end of the second gear (26). 3) A second rotating roller (214) is fixedly connected to the middle of the outer end of the second rotating shaft (213). A first gear (25) is meshed with the rear side of the second gear (26). A first rotating shaft (24) is fixedly connected to the left end of the first gear (25). A first rotating roller (23) is fixedly connected to the middle of the outer end of the first rotating shaft (24). A matching frame (22) is rotatably connected to the outer ends of the first rotating shaft (24) and the second rotating shaft (213) through bearings. A fixing plate (21) is fixedly connected to the lower right side of the matching frame (22). The right end of the fixing plate (21) is fixedly connected to the inner end of the fixing frame (1). The left end of the matching frame (22) is fixedly connected to the inner end of the fixing frame (1).

2. The PVC hose turning rack according to claim 1, characterized in that: A contact plate (210) is fixedly connected between each of the two adjacent moving racks (29). The rear end of the rear moving rack (29) is fixedly connected to the output end of the first electric push rod (211). The rear end of the first electric push rod (211) is fixedly connected to a support frame (212). The left end of the support frame (212) is fixedly connected to a fixing frame (1).

3. The PVC hose turning rack according to claim 1, characterized in that: The hose feeding and receiving mechanism (3) includes a fixed ring (31) fixedly connected to the middle of the lower end of the fixed frame (1). A bidirectional stepper motor (32) is fixedly connected to the middle of the inner end of the fixed ring (31). A rotating rod (33) is fixedly connected to the output end of the bidirectional stepper motor (32), and a threaded groove is opened at the outer end of the rotating rod (33). A movable sleeve (35) is threadedly connected to the outer end of the rotating rod (33). A hose clamping assembly (37) is provided at the upper end of the movable sleeve (35). A guide post (36) is slidably connected to the surface of the movable sleeve (35).

4. A PVC hose turning rack according to claim 3, characterized in that: The hose clamping assembly (37) includes a mounting sleeve (371) fixedly connected to the upper end of the movable sleeve (35). The inner end of the mounting sleeve (371) is fixedly connected to a plurality of second electric push rods (372) arranged in a circle. The output end of the second electric push rods (372) is fixedly connected to a clamping arc plate (373).

5. A PVC hose turning rack according to claim 3, characterized in that: The rotating rod (33) is fixedly connected to a rotating limiting plate (34) at the end away from the bidirectional stepper motor (32), and the outer diameter of the rotating limiting plate (34) is larger than the outer diameter of the rotating rod (33).

6. A PVC hose turning rack according to claim 3, characterized in that: The guide post (36) passes through the movable sleeve (35), and the guide post (36) is fixedly connected to the fixed frame (1) at one end near the fixed frame (1).

7. A PVC hose turning rack according to claim 1, characterized in that: Each corner of the lower end of the fixed frame (1) is fixedly connected with a bracket (4), and each bracket (4) is fixedly connected with an anti-slip pad (5) at the lower end.

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