Plastic composite pipe end sealing machine structure

Abstract

The utility model discloses a plastic composite pipe end sealing machine structure which comprises a clamp module and a moving module which are arranged above a machine frame, a forming module and a heating module are arranged on one side of the machine frame, the heating module is arranged at one end of the machine frame, a heater and a buffering device are arranged on the heating module, and a limiting module is arranged on the machine frame. The limiting module comprises an inner sheath and an outer sheath, and the inner sheath and the outer sheath are matched to form a positioning ring groove. The sealing machine structure can utilize the material of the pipe for sealing, enables the inner wall and the outer wall of the pipe to be consistent in size after the end face of the pipe is sealed and the inner wall and the outer wall before sealing, is light in whole, can flexibly adjust the use field, and is also suitable for being used in a construction site.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of packaging technology, especially a plastic composite pipe end sealing machine structure. BACKGROUND

[0002] The sealing machine is a complex and important field, and the composite pipe is widely used in multiple fields due to its excellent characteristics, but the pipe end face is prone to exposure during production and use, resulting in performance degradation. Common composite pipes on the market include steel-plastic composite pressure pipes, mesh steel belt metal composite pipes, steel skeleton metal composite pipes, aluminum-plastic composite pipes, flexible reinforced composite pipes, and steel wire mesh composite pipes.

[0003] In the prior art, a pipe sealing machine disclosed in patent No. CN117245903A has a conveying device arranged on the upper side of a supporting device, a lower pressing device connected to the conveying device, an injection molding machine arranged on one side of the output end of the supporting device, a mold assembly arranged between the injection molding machine and the supporting device, and an injection molding head of the injection molding machine extending into the mold assembly. A heating assembly is arranged on the mold assembly or between the mold assembly and the supporting device. The supporting device of the utility model can support the pipe, the lower pressing device drives the conveying device to lift, thereby pressing the pipe tightly on the supporting device, and the conveying of the pipe is completed, the end of the pipe to be sealed is moved into the mold assembly, and the heating assembly can heat the end of the pipe to be sealed. The injection molding machine directly injection molds the end of the heated pipe. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a plastic composite pipe end sealing machine structure which can seal by itself and make the inner and outer walls of the pipe consistent in size after sealing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a plastic composite pipe end sealing machine structure is provided, which comprises a frame, a clamp module and a moving module arranged above the frame, a forming module and a heating module arranged on one side of the frame, a heating module arranged at one end of the frame, a heater and a buffer device arranged on the heating module.

[0006] As a preferred embodiment, a fixing seat is arranged on the buffer device, a guide rod is arranged in the fixing seat, one end of the guide rod is connected to the heater, and a compression spring is arranged between the heater and the fixing seat.

[0007] As a preferred embodiment, a forming die is arranged on the forming module, a plurality of forming annular grooves are arranged on the end face of one side of the forming die, and the forming annular grooves are arranged in concentric arrangement.

[0008] As preferred, the rack is provided with a switching module, the switching module is provided with a switching device, the forming die is provided with a forming die plate, the forming die plate is connected with the output end of the switching device, and the switching device drives the forming die plate to approach the forming die.

[0009] As preferred, the moving module comprises a cylinder rod and a cylinder body, and the clamp module is arranged on the cylinder body.

[0010] As preferred, the clamp module comprises a lower seat and an upper seat, the lower seat is arranged on the cylinder body, and the upper seat is matched with the lower seat; an upper ring groove is arranged on the inner side of the upper seat, an upper clamp shoe is arranged in the upper ring groove; a lower ring groove is arranged on the inner side of the lower seat, a lower clamp shoe is arranged in the lower ring groove, and the upper clamp shoe and the lower clamp shoe fix the pipe.

[0011] As preferred, the rack is provided with a sizing module, the sizing module comprises an inner sheath and an outer sheath, and the inner sheath and the outer sheath cooperatively form a positioning ring groove.

[0012] As preferred, the rack is provided with a limiting module, the limiting module comprises an inner sheath and an outer sheath, and the inner sheath and the outer sheath cooperatively form a positioning ring groove.

[0013] As preferred, the rack is provided with a positioning module, the positioning module comprises a lifting device and a positioning plate, and the lifting device drives the positioning plate to move in a straight line direction.

[0014] As preferred, the inner shaft adjusting device drives an inner shaft, a sliding block is arranged on the inner shaft, and an inner clamp shoe is connected with the sliding block to press the pipe.

[0015] Compared with the prior art, the utility model has the advantages that: the utility model adopts a sheath structure, can effectively correct the out-of-roundness of the pipe, adopts a heating and then cooling forming mode, can effectively save the sealing time, adopts a special forming die, can make the pipe end face sealing, and the inner and outer walls of the pipe are consistent with the size of the inner and outer walls before sealing, the equipment is light and flexible to adjust the use site, and is also suitable for use on the construction site. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a main body schematic view of the utility model.

[0017] Figure 2 It is a main body structure schematic view of the utility model without a pipe.

[0018] Figure 3 It is a main body structure schematic view of the utility model. Figure 1 It is a sectional view of A-A of the utility model.

[0019] Figure 4For the utility model Figure 3 The local structure of C is enlarged.

[0020] Figure 5 For the utility model embodiment 4 structure diagram.

[0021] Figure 6 For the utility model embodiment 5 inside bracing device schematic view.

[0022] In the figure: 1, rack;11, first fixed plate;12, second fixed plate;121, fixed hole;13, third fixed plate;131, support;132, seat hole;14, support rod;15, baffle;2, heating module;21, heater;22, fixed seat;23, guide rod;3, forming module;31, lower die plate;311, forming seat;312, semicircular plate;313, semicircular ring groove;314, semicircular groove;32, upper die plate;33, forming ring groove;34, reset piece;35, air cylinder;351, piston rod;36, sealing strip;4, clamp module;41, lower seat;411, lower clamp tile;42, upper seat;421, upper clamp tile;5, moving module;51, cylinder rod;52, cylinder body;6, switching module;61, lower cylinder;62, upper cylinder;63, lower fixed plate;64, upper fixed plate;7, sizing module;71, inner sheath;72, outer sheath;73, positioning ring groove;8, positioning module;81, lifting device;82, positioning plate;9, pipe;10, inside bracing device;101, inner shaft;102, inside bracing tile;103, sliding block;104, outer shaft sleeve;105, positioning nut;106, inner shaft adjusting device;107, outer sizing device. Specific embodiments

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] The main structure of the utility model will be described below. The plastic composite pipe end sealing machine structure comprises the following main parts.

[0025] Rack 1: as the basic structure of the whole sealing machine, other modules are fixed or connected on rack 1.

[0026] Clamp module 4 and moving module 5: the two modules are installed above rack 1. Clamp module 4 is used to fix the pipe, and moving module 5 is responsible for the movement of the pipe.

[0027] Molding module 3 and heating module 2: The two modules are installed on one side of the rack 1. The molding module 3 is responsible for the molding work of the pipe, while the heating module 2 is responsible for the heating treatment of the pipe. The heating module 2 is located at one end of the rack 1, and a heater 21 and a buffer device are provided thereon.

[0028] Buffer device: On the heating module 2, the buffer device includes a fixed seat 22, a guide rod 23 and a compression spring. The fixed seat 22 is provided with the guide rod 23, one end of the guide rod 23 is connected with the heater 21, and the compression spring is provided between the heater 21 and the fixed seat 22, for absorbing impact force and supporting the heater 21.

[0029] Molding die and molding ring groove 33: The molding module 3 is provided with a molding die, and the end face of the molding die is provided with a plurality of molding ring grooves 33, which are arranged in concentric arrangement, for the molding process of the pipe.

[0030] Switching module 6: installed on the rack 1, the switching module 6 is provided with a switching device. The molding die is provided with a molding template, and the molding template is connected with the output end of the switching device. The switching device is responsible for driving the molding template, thereby driving the opening and closing of the molding die. When the pipe passes through the inner and outer sheaths into the heating area, the molding die is in the state of upper and lower mold separation. After heating, the pipe retreats a certain distance. At this time, the switching device drives the molding template, thereby driving the molding die, so that the upper and lower molds are closed, so as to realize the molding of the pipe.

[0031] Cylinder rod 51 and cylinder body 52: The moving module 5 includes a cylinder rod 51 and a cylinder body 52, and the clamp module 4 is arranged on the cylinder body 52. The cylinder rod 51 is responsible for moving in the cylinder body 52, thereby driving the clamp module 4 and the pipe to move.

[0032] Lower seat 41 and upper seat 42: The clamp module 4 includes a lower seat 41 and an upper seat 42, and the lower seat 41 is arranged on the cylinder body 52, and the upper seat 42 cooperates with the lower seat 41. The inner side of the upper seat 41 is provided with an upper ring groove, and the upper ring groove is provided with an upper clamp shoe 421; the inner side of the lower seat 41 is provided with a lower ring groove, and the lower ring groove is provided with a lower clamp shoe 411. The upper clamp shoe 421 and the lower clamp shoe 411 select corresponding specifications according to the specifications of the pipe, and jointly fix the pipe 9.

[0033] Sizing module 7: installed on the rack 1, the sizing module 7 includes an inner sheath 71 and an outer sheath 72, and the inner sheath 71 and the outer sheath 72 cooperate to form a positioning ring groove 73, for correcting the inner and outer diameter sizes of the pipe.

[0034] Positioning module 8: also installed on the rack 1, the positioning module 8 includes a lifting device 81 and a positioning plate 82. The lifting device 81 drives the positioning plate 82 to move in a straight line direction, for determining the initial position of the pipe.

[0035] Example 1: see Figures 1 to 5The utility model relates to a plastic composite pipe end sealing machine structure which is composed of a frame 1, a heating module 2, a forming module 3, a clamp module 4, a moving module 5 and a switching module 6.

[0036] The frame 1 is provided with a first fixed plate 11 and a second fixed plate 12 at both ends along the length direction, wherein the first fixed plate 11 is designed in an arc shape to facilitate the placement of the pipe without interference during the sealing operation.

[0037] It is to be noted that the moving module 5 is composed of two cylinder rods 51 installed in parallel on the frame 1 and a cylinder body 52 sliding on the cylinder rods, and the clamp module 4 is installed on the cylinder body 52. The cylinder rods 51 are fixed on the first fixed plate 11 and the second fixed plate 12. By adjusting the flow of hydraulic oil in the cylinder rods 51, the cylinder body 52 can slide on the cylinder rods, thereby pushing the clamp module 4 to move along the length direction of the cylinder rods.

[0038] It is to be noted that the clamp assembly 4 is composed of a lower seat 41 and an upper seat 42. The lower seat 41 is fastened on the cylinder rod 51, and the upper seat 42 is connected with the lower seat 41. The inner wall of the upper seat 42 is designed with an upper ring groove for installing an upper clamp shoe 421, and correspondingly, the inner wall of the lower seat 41 has a lower ring groove for installing a lower clamp shoe 411. The specifications of the upper clamp shoe 421 and the lower clamp shoe 411 are selected according to the specifications of the pipe, and the upper clamp shoe 421 and the lower clamp shoe 411 work together to ensure that the pipe is stably clamped.

[0039] The upper clamp shoe 421 and the lower clamp shoe 411 are designed to be detachable and are installed in the corresponding ring grooves. Such design can select corresponding upper and lower clamp shoes according to the size of the pipe to adapt to the fixation of pipes of different diameters. Both ends of the lower seat 41 are provided with bolts, one end of which is fixed with the lower seat 41, and the other end is matched with a nut; the upper seat 42 is connected with the lower seat 41 through the bolts and nuts. In this design, two sets of such clamp assemblies are installed on the cylinder rod 51 to enhance the stability and concentricity of pipe clamping.

[0040] As for the heating assembly 2 and the forming assembly 3, they are installed on the frame 1 through the second fixed plate 12. Although they can also be installed using other fixed plates, this design selects to install them on the same fixed plate, which reduces the number of parts, lightens the overall weight, makes the structure more compact, and is convenient for moving.

[0041] It is necessary to explain that the heating module 2 is composed of a heater 21 and a buffer device, the heater 21 is located at one end of the frame 1. The function of the buffer device is to absorb the impact force when the pipe end contacts the heater 21. The heater 21 is designed in the form of a heating disc, and the top is equipped with a baffle 15, which is to prevent dust or rain from affecting its performance. (Prevent heat loss of the heater, contact the heater due to human factors, cause burns and other injuries), one end of the cylinder rod 51 away from the first fixed plate 11, through the second fixed plate 12, the fixing seat 22 is installed at this end of the cylinder rod 51. In this way, the fixing seat 22 and the first fixed plate 11 are located on both sides of the second fixed plate 12 respectively. The buffer device is composed of a fixing seat 22, a guide rod 23 and a compression spring, the fixing seat 22 is fixed at both ends along the length of the two cylinder rods 51. The guide rod 23 can slide freely in the fixing seat 22, one end is connected to the heater 21, and the compression spring is sleeved on the guide rod 23, and the two ends are respectively connected with the fixing seat 22 and the heater 21. In order to enhance the stability of the heater 21 when moving along the guide rod 23, two guide rods 23 are designed in the design, that is, two sets of buffer devices are arranged along the length of the fixing seat 22. When the pipe end contacts the heater 21, the pushing force provided by the spring ensures that the heater 21 is in close contact with the pipe end to achieve heating.

[0042] It is necessary to explain that in the forming module 3, a forming die is installed therein, and a plurality of forming ring grooves 33 are designed on the one end port of the die, which are arranged concentrically. In this case, the forming ring grooves 33 are multiple, and can be single. The concentric arrangement design makes the forming ring grooves 33 can adapt to different diameter pipes, so that the end sealing treatment of pipe with different diameters can be carried out without replacing the forming die. The forming ring grooves 33 are located on the side of the forming die facing the first fixed plate 11, when the pipe end is heated, the moving module will move the pipe, the pipe end will be pushed into these forming ring grooves 33, and the end sealing forming will be completed through the subsequent cooling process.

[0043] The switching module 6 can move the forming module 3 out of the axis of the pipe movement. This is because the sealing process needs to be heated first and then formed, so when heating, the axis of the forming module 3 and the axis of the heating module 2 cannot be located on the axis of the pipe at the same time. The forming die is placed on the side of the second fixed plate 12 close to the first fixed plate 11.

[0044] In the present case, the forming die is designed as a half circle, comprising an upper die 32 and a lower die 31. The lower die 31 is connected to the output end of the lower cylinder 61, while the upper die 32 is connected to the output end of the upper cylinder 62. The two oil cylinders, i.e. the upper cylinder 62 and the lower cylinder 61, are arranged vertically and can drive the forming die to separate or approach each other, so as to ensure the smooth passing of the pipe through the forming module and reach the heating area for heating. The switching module 6 is equipped with two symmetrically arranged switching devices, and each forming die is connected to the output end of one switching device. These switching devices adopt oil cylinders, but are not limited to oil cylinders as the driving mode.

[0045] The upper fixed plate 64 is located above the second fixed plate 12 and is connected to the top of the second fixed plate 12 through a support column, and the upper cylinder 62 is installed on the upper fixed plate 64. Correspondingly, the lower fixed plate 63 is located below the second fixed plate 12 and is connected to the bottom of the second fixed plate 12 through a support column, and the lower cylinder 61 is installed on the lower fixed plate 63.

[0046] During the heating of the pipe, the output end of the upper cylinder 62 pushes the upper die 32 to move upward, and the output end of the lower cylinder 61 pushes the lower die 31 to move downward, so that the forming die separates to provide space for the pipe to pass through the gap between the upper die 32 and the lower die 31, so that the pipe can contact the heater 21.

[0047] In order to ensure the stable movement of the upper die 32 and the lower die 31 in the vertical direction, the third fixed plate 13 is installed on the side of the second fixed plate 12 close to the first fixed plate 11. The third fixed plate 13 is provided with protruding supports 131 at both ends in the horizontal direction, which are fixedly connected with the second fixed plate 12 through bolts, forming seat holes 132 with square cross sections. The upper die 32 and the lower die 31 slide in the seat holes 132 to realize more stable vertical movement.

[0048] The specific working steps of the utility model are as follows: first, fix the pipe on the clamp module 4, and form a ring groove by grooving the port. Then start the sealing machine, and the moving module 5 pushes the pipe to the heating module 2, and the heater 21 heats the end of the pipe. After heating, the moving module 5 moves the pipe to the forming die, and the lower cylinder 61 and the upper cylinder 62 drive the die to close, and the moving module 5 pushes the pipe to make the end contact with the forming ring groove 33, and the plastic layer covers the metal or perishable layer. After cooling and forming, the moving module 5 moves away the pipe, each module resets, and the pipe is taken out to complete the sealing.

[0049] The utility model adopts a unique sealing process, first, the plastic layer of the pipe end is heated and melted, and then the sealing is completed through the shaping step. This method uses the material of the pipe itself without additional sealing material, which ensures better fusion of the inner and outer layers of the pipe and prevents cracking. At the same time, the inner and outer wall thickness of the pipe end after sealing remains the same as the original state. This design not only simplifies the sealing process, but also effectively avoids the exposure of the easily oxidized and corroded layer at the pipe end due to the mismatch of the sealing material and the pipe material, which leads to incomplete fusion and loss of sealing significance.

[0050] In addition, since the inner and outer wall thickness of the pipe end does not change during the sealing process, it helps to maintain the overall structural integrity and mechanical properties of the pipe. More importantly, this sealing method can form a good sealing effect, effectively isolating air and other external factors that may affect the quality of the pipe, thereby preventing the degradation of the performance of the pipe. This is particularly important for pipes that need to be stored for a long time or used in specific environments, as they may be affected by environmental factors, leading to gradual degradation of performance. The utility model realizes efficient sealing of the pipe end, maintains the structural integrity of the pipe, and improves the storage time of the pipe, avoiding the performance degradation caused by easy oxidation and corrosion in the middle of the pipe during long-term storage, which leads to the separation of the inner and outer layers of plastic and metal, affecting the performance and service life of the pipe. The use of sealing process has high practical value for the intermediate reinforced layer of the pipe which is easy to oxidize and corrode.

[0051] The utility model adopts the groove digging process, which effectively solves the problem of uneven port for the production of metal composite pipe or flexible reinforced composite pipe. Through the process of groove digging and port flattening at the same time, the precision and quality of pipe port processing are significantly improved. In addition, the utility model also adopts the inner support tile structure, which increases the contact area with the inner wall of the pipe and effectively avoids the generation of indentation. At the same time, the inner support tile structure also has the ability to correct the ovality of the pipe, which is very convenient for subsequent groove digging processing. Through these innovative designs, the utility model not only improves the quality of the pipe, but also provides better conditions for further processing of the pipe.

[0052] The formed pipe 9 is cooled in the mold for a period of time to ensure the stability of the forming effect. The control of cooling time is also important, which needs to be adjusted according to the material of the pipe and the thickness after forming.

[0053] Example 2: see Figures 1 to 5In this embodiment, compared with the embodiment 1, the sizing module 7 is added on the side of the heating module 2 close to the first fixed plate 11, which effectively prevents the deformation of the pipe during the heating and sizing process, because the sizing module 7 can clamp the inner and outer sides of the pipe. The sizing module 7 is composed of an inner sleeve 71 and an outer sleeve 72, which together form a sizing ring groove 73. After the pipe end passes through the sizing ring groove 73, it will be in contact with the forming module 3 or the heating module 2.

[0054] The outer sleeve 72 is fixed on the third fixed plate 13, and the middle position of the fixed seat 22 is provided with a support rod 14 aligned with the pipe axis. The support rod 14 is connected to the inner sleeve 71 after passing through the heating disc and the sizing die, and the inner sleeve 71 is fixed on the support rod 14. Such a structure design not only ensures the stability of the pipe during processing, but also improves the accuracy of the entire forming process. Through this design, the sizing module 7 provides firm support for the pipe, thereby maintaining the consistency of the shape and size of the pipe during heating and sizing.

[0055] Embodiment 3: see Figures 1 to 5 This embodiment is similar to the embodiment 1 or the embodiment 2, the difference is that the positioning module 8 is added on the rack 1, which is located between the sizing module 7 and the first fixed plate 11.

[0056] The positioning module 8 includes a lifting device and a positioning plate 82, and the lifting device moves the positioning plate 82 in a straight line direction. Before the pipe is clamped to the clamp module 4, the pipe end is in contact with the positioning module 8. When the pipe end is sealed, the lifting device drives the positioning plate 82 to move away from the pipe end. The lifting device 81 in this application is a lifting oil cylinder (or air cylinder), which is fixed on the lower fixed plate 63.

[0057] By setting the positioning plate 82, when clamping the pipe, the lifting oil cylinder (or air cylinder) drives the positioning plate 82 to move upwards, and the positioning plate 82 is located at the pipe axis position, and then the pipe slot end is abutted on the positioning plate 82, and then the pipe is fixed by the clamp module 4. When sealing, the lifting oil cylinder (or air cylinder) drives the positioning plate 82 to move downwards, so that the pipe can smoothly contact the heater 21. The positioning plate 82 helps to more accurately install the pipe position, ensures the smooth progress of the subsequent heating and sizing steps, and guarantees the pipe sealing quality.

[0058] Embodiment 4: see Figures 1 to 5 This embodiment is similar to the previous embodiments in structure, the difference is that the forming template is composed of a forming seat 311 and a semicircular plate 312, and the semicircular plate 312 is provided with a plurality of concentric semicircular ring grooves 313. When the two forming templates cooperate, the semicircular ring grooves 313 on the two semicircular plates 312 together form the forming ring groove 33.

[0059] On the forming seat 311, a semicircular groove 314 is provided, which cooperates with the semicircular plate 312. The semicircular plate 312 is installed in the semicircular groove 314. Between the forming seat 311 and the semicircular groove 314, a reset member 34 is arranged to ensure the stability of the forming seat. In addition, the semicircular groove 314 and the forming die plate are equipped with an air cylinder 35, which is fixed in the semicircular ring, and the piston rod 351 of the air cylinder 35 abuts against the forming die plate to drive the forming die plate to perform the forming action.

[0060] The two side walls of the semicircular ring groove 313 are provided with side wall ring grooves, and a hollow sealing strip 36 is installed in the side wall ring grooves. The rubber sealing strip 36 is connected with the air outlet hole of the air cylinder 35, which ensures the air tightness of the air cylinder 35, and can also be used to provide additional forming pressure or maintain stability during the forming process. Through such configuration, the forming seat 311 and the related components can work cooperatively to achieve precise forming.

[0061] In this embodiment, only one semicircular groove 314 is provided in the semicircular plate 312.

[0062] In the initial state, the semicircular plate 312 and the semicircular groove 314 are kept apart by the reset member 34, and the air cylinder 35 is also in the initial state. The sealing strip 36 just fills the side wall ring groove, so that the two side walls of the semicircular ring groove 313 remain flat. When the pipe end abuts against the forming ring groove 33 for sizing, the pipe acts on the semicircular plate 312, causing it to move towards the semicircular groove 314 against the force of the reset member 34. The piston rod 351 moves in the air cylinder 35, and the gas in the air cylinder 35 enters the sealing strip 36, causing it to expand and tightly adhere to the inner and outer side walls of the pipe. By installing a hollow sealing strip 36 in the side wall ring groove of the semicircular ring groove 313, the problem of melted plastic seeping between the pipe and the side wall of the semicircular ring groove 313 during pipe sizing is solved.

[0063] This sealing measure ensures the quality and integrity of the pipe end sealing, preventing any possible leakage or uneven forming. The pipe end is subjected to greater pressure in the sizing ring groove, and under the action of high pressure, the melted plastic can be more effectively re-melted in the ring groove, forming a firm and uniform sealing layer. This not only enhances the strength of the pipe end, but also improves the overall durability and reliability of the pipe. The sealing strip 36 is connected to the air outlet hole of the air cylinder 35 through the air pipe, which means that the air cylinder 35 can exert additional pressure on the sealing strip 36, further enhancing the sealing effect. This pneumatically controlled sealing system provides pressure control for the pipe forming process, ensuring consistency and repeatability during the forming process. This design, by combining the sealing strip and pneumatic control, not only improves the consistency of pipe quality, but also enhances production efficiency and the reliability of the final product.

[0064] Embodiment 5: see Figures 1 to 6The embodiment aims to form certain clamping force on the inner and outer walls of the heated pipe during the sealing and forming of the steel wire mesh framework composite pipe, so that the inner and outer plastic layers are pulled back to the pipe end by a certain amount when the pipe is pulled back, and finally the pipe end is pushed into the forming die, and after cooling and forming, the end sealing can be completed.

[0065] The main structure of the embodiment is similar to that of embodiments 1 to 4, and on the basis of the structure described in embodiments 1 to 4, the embodiment adds an inner clamping device 10 and an outer sizing device 107. The outer sizing device 107 is fixed on the third fixed plate 13, and the inner clamping device 10 includes an outer shaft sleeve 104, an inner shaft 101, a sliding block 103, an inner clamping tile 102, and an inner shaft adjusting device 106. The outer shaft sleeve 104 is positioned by a positioning nut 105, and the device is fixed at a corresponding position in the center of the equipment and is used in cooperation with the outer sizing device 107. The inner shaft adjusting device 106 drives the inner shaft 101 to move back and forth, thereby pushing the sliding block 103 to move radially relative to the shaft center. The inner clamping tile 102 is installed on the sliding block 103, and the inner clamping tile 102 tightens or loosens the inner wall of the pipe 9 along with the radial movement of the sliding block 103.

[0066] The embodiment makes up for the fact that the inner and outer sleeves do not change in diameter, resulting in the same diameter of the pipe 9 entering and pulling back until forming. For pipe materials with size deviation, the plastic layers on the inner and outer walls of the pipe are pulled back, and because the pipe is not extruded, the sealing effect is poor.

[0067] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A plastic composite pipe end sealer structure, characterized by comprising: The rack (1) is provided with a clamp module (4) and a moving module (5); one side of the rack (1) is provided with a forming module (3) and a heating module (2); the heating module (2) is arranged at one end of the rack (1); the heating module (2) is provided with a heater (21) and a buffer device.

2. A plastic composite pipe end sealing machine structure according to claim 1, characterized in that, The buffer device is provided with a fixing seat (22); the fixing seat (22) is provided with a guide rod (23), one end of the guide rod (23) is connected with the heater (21), and the heater (21) is provided with a compression spring between the heater (21) and the fixing seat (22).

3. A structure of a plastic composite pipe end sealing machine according to claim 1 or 2, characterized in that, The forming module (3) is provided with a forming die, and the end face of one side of the forming die is provided with a plurality of forming ring grooves (33) arranged in concentric.

4. A plastic composite pipe end sealing machine structure according to claim 3, wherein The rack (1) is provided with a switching module (6), the switching module (6) is provided with a switching device, the forming die is provided with a forming template, the forming template is connected with the output end of the switching device, and the switching device drives the forming template to be close to the forming die.

5. A structure of a plastic composite pipe end sealing machine according to claim 1 or 4, characterized in that, The moving module (5) comprises a cylinder rod (51) and a cylinder body (52), and the clamp module (4) is arranged on the cylinder body (52).

6. A plastic composite pipe end sealer structure according to claim 5, wherein The clamp module (4) comprises a lower seat (41) and an upper seat (42), the lower seat (41) is arranged on the cylinder body (52), and the upper seat (42) is matched with the lower seat (41); the inner side of the upper seat (42) is provided with an upper ring groove, and the upper ring groove is provided with an upper clamp shoe (421); the inner side of the lower seat (41) is provided with a lower ring groove, and the lower ring groove is provided with a lower clamp shoe (411), and the upper clamp shoe (421) and the lower clamp shoe (411) fix the pipe (9).

7. The structure of a plastic composite pipe end sealing machine according to claim 1, wherein The rack (1) is provided with a limiting module (7), the limiting module (7) comprises an inner sheath (71) and an outer sheath (72), and the inner sheath (71) and the outer sheath (72) cooperate to form a positioning ring groove (73).

8. The structure of a plastic composite pipe end sealing machine according to claim 1, wherein, The rack is provided with a positioning module (8), the positioning module (8) comprises a lifting device (81) and a positioning plate (82), and the lifting device (81) drives the positioning plate (82) to move in a straight line direction.

9. The structure of a plastic composite pipe end sealing machine according to claim 1, wherein, The rack (1) is provided with an inner straining device (10) and an outer sizing device (107), and the inner straining device (10) is provided with an inner shaft adjusting device (106).

10. A plastic composite pipe end sealer structure according to claim 9, wherein The inner shaft adjusting device (106) drives an inner shaft (101), the inner shaft (101) is provided with a sliding block (103), and the sliding block (103) is connected with an inner straining shoe (102) to press the pipe (9).

Images