Spline manufacturing mold for detecting performance of pipe master batch

Abstract

The utility model provides a pipe master batch performance detection spline manufacturing die which comprises a die holder, an installation cavity is installed in the die holder, a plurality of spline forming grooves communicated with the interior of the installation cavity are formed in the top of the die holder, and connecting shells with rectangular cross sections are fixedly installed on the inner top wall of the installation cavity and located outside the spline forming grooves. An electric heating plate which is arranged outside the connecting shell in a sleeving manner and is attached to the outer side wall of the connecting shell is fixedly mounted in the mounting cavity; and lifting units are mounted on the inner bottom wall of the mounting cavity and located below the multiple sample strip forming grooves. When the sample strip for detecting the performance of the master batch of the pipe is manufactured, the master batch is quantitatively fed into the plurality of connecting shells respectively, and the plurality of electric heating plates are controlled to work, so that the master batch in the plurality of sample strip forming grooves is melted into liquid, and the sample strip for detecting the performance of the master batch can be formed after the master batch melted into the liquid is cooled; and the whole operation is simple, so that the manufacturing efficiency of the sample strips for detecting the performance of the master batch of the pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe processing equipment, in particular to a sample strip manufacturing mould for pipe masterbatch performance detection. Background Art

[0002] Pipes are materials used to make pipe fittings. Different pipe fittings require different pipes. The quality of pipes directly determines the quality of pipe fittings. Plastic pipe processing is a process of converting plastic raw materials into tubular products through various pipe processing equipment. Before processing plastic pipes, it is necessary to use a spline making mold to process the masterbatch for pipe processing into splines, and perform tensile performance tests on the masterbatch splines to ensure the quality of the masterbatch and improve the quality of the processed pipes.

[0003] For example, Figure 6 A mold for making a pipe masterbatch performance test strip in the prior art is shown, which includes a mold base and a mold cover. A molding groove is provided on the top of the mold base. The mold cover can be placed on the top of the mold base and seal the molding groove. When making a pipe masterbatch performance test strip, the masterbatch is quantitatively fed into the molding groove, and then the mold is placed in a heating device. The mold is heated by the heating device to increase the temperature of the mold, so that the masterbatch in the molding groove is melted. After the melted masterbatch in the molding groove is cooled, the masterbatch liquid in the molding groove can be formed into a masterbatch sample block. After the masterbatch sample block is formed, the masterbatch sample block is taken out and then cut to form a plurality of pipe masterbatch strips for tensile performance testing. Although this method can make pipe masterbatch strips;

[0004] However, in actual use, there are still the following defects:

[0005] When making a sample strip for testing the performance of a masterbatch for pipes, the masterbatch is first quantitatively fed into a molding tank, and then the mold is heated by a heating device to melt the masterbatch in the molding tank. After the masterbatch melted in the molding tank is cooled to form a sample block, it is cut to obtain a sample strip of the masterbatch for pipes. The overall operation is relatively cumbersome, which reduces the efficiency of making the sample strip for testing the performance of the masterbatch for pipes.

[0006] Therefore, the present application proposes a mold for making a sample strip for testing the performance of a pipe masterbatch. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a mold for making a sample strip for testing the performance of a pipe masterbatch, which solves the problems mentioned in the background technology.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A spline production mold for pipe masterbatch performance testing comprises a mold base, a mounting cavity is installed in the mold base, a plurality of spline forming grooves are opened on the top of the mold base and are all connected to the inside of the mounting cavity, a connecting shell with a rectangular cross section is fixedly installed on the top wall of the mounting cavity and outside the spline forming grooves, and an electric heating plate is fixedly installed in the mounting cavity and is sleeved on the outside of the connecting shell and fits with the outer wall of the connecting shell;

[0010] A lifting unit is installed on the bottom wall of the installation cavity and below the multiple spline forming grooves. The lifting unit includes a lifting mechanism symmetrically installed on the bottom wall of the installation cavity. An inner support plate is installed on the top of the two lifting mechanisms and located in the connecting shell. The outer wall of the inner support plate fits the inner wall of the connecting shell. The inner support plate is displaced upward in the connecting shell through the two lifting mechanisms so that the inner support plate extends above the mold base.

[0011] The mold base is provided with a limiting mechanism connected to multiple groups of lifting units, the limiting mechanism is used to limit the movement of the multiple lifting mechanisms to fix the positions of the multiple inner support plates, the mold base is hinged with a mold cover for sealing multiple spline forming grooves through a hinge shaft, and the mold base is provided with an adjusting mechanism acting on the hinge shaft, which is used to make the hinge shaft rotate or stop rotating on the mold base.

[0012] Further: the lifting mechanism includes a base plate fixedly installed on the bottom wall of the installation cavity, a guide shell fixedly installed on the base plate, a guide rod movably passing through the top of the guide shell, a sleeve shell that can be sleeved on the outside of the base plate is fixed on the top of the guide rod, a spring sleeved on the outside of the guide shell is installed in the sleeve shell, and both ends of the spring are respectively connected to the base plate and the top wall inside the sleeve shell.

[0013] Furthermore: the adjustment mechanism includes a worm wheel coaxially fixed to the hinge shaft, and a worm meshing with the worm wheel is rotatably mounted on the mold base.

[0014] Further: the limiting mechanism includes:

[0015] A connecting frame, the connecting frame is fixedly connected to the bottom positions of the outer side walls of the plurality of casings;

[0016] The rack is vertically oriented and fixedly mounted on the connecting frame;

[0017] Gear, a horizontal rotating rod is rotatably mounted on the mold base, one end of the rotating rod extends into the mounting cavity and is coaxially fixed with a gear meshing with the rack;

[0018] The limiting member is installed on the die base and connected with the rotating rod. The limiting member is used to limit or cancel the restriction on the rotating rod rotating on the die base.

[0019] Further: the limiting member includes a ratchet coaxially fixed to the rotating rod, a positioning shaft is fixedly mounted on the mold base, a pawl meshing with the ratchet is rotatably connected to the positioning shaft, and a reset member acting on the pawl is installed on the positioning shaft, which is used to rotate the pawl on the positioning shaft so that the pawl meshes with the ratchet.

[0020] Further: the reset member is a coil spring.

[0021] Furthermore: a sealing groove is provided on the outer side wall of the inner support plate, and a sealing gasket is inserted into the sealing groove and fits with the inner side wall of the connecting shell.

[0022] The utility model provides a mold for making a sample strip for testing the performance of a pipe masterbatch. Compared with the prior art, it has the following beneficial effects:

[0023] 1. When making the spline for testing the performance of the masterbatch of the pipe, the masterbatch is quantitatively added into the multiple connecting shells respectively, and the multiple electric heating plates are controlled to work, so that the masterbatch in the multiple spline forming grooves is melted into liquid. After the masterbatch melted into liquid is cooled, the spline for testing the performance of the masterbatch can be formed, and multiple splines for testing the performance of the masterbatch can be obtained. The overall operation is simple, thereby improving the production efficiency of the spline for testing the performance of the masterbatch of the pipe;

[0024] 2. After the spline for testing the performance of the masterbatch is manufactured, the mold cover is removed from blocking the multiple spline forming grooves, and the restriction mechanism is used to remove the restriction on the movement of the multiple lifting mechanisms, so that the multiple inner support plates can be extended to the top of the mold base through the multiple lifting mechanisms, and the spline for testing the performance of the masterbatch can be unloaded;

[0025] 3. Through the design of the sealing gasket, the fit between the inner support plate and the inner wall of the connecting shell is increased, thereby increasing the sealing between the inner support plate and the connecting shell, and improving the sealing effect between the inner support plate and the connecting shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A three-dimensional structural schematic diagram of the utility model is shown;

[0028] Figure 2 A schematic diagram of the installation structure of the limiting member of the utility model is shown;

[0029] Figure 3 A schematic diagram of the installation structure of the limiting mechanism of the utility model is shown;

[0030] Figure 4 The schematic diagram of the installation structure of the lifting mechanism of the utility model is shown;

[0031] Figure 5 The utility model is shown Figure 4 The enlarged view of point A in the middle;

[0032] Figure 6 A mold for making a sample strip for testing the performance of a pipe masterbatch in the prior art is shown;

[0033] As shown in the figure: 1. mold base; 11. mounting cavity; 12. spline forming groove; 13. connecting shell; 14. electric heating plate; 15. hinge shaft; 16. mold cover; 2. lifting mechanism; 21. bottom plate; 22. guide shell; 23. guide rod; 24. sleeve shell; 25. spring; 3. inner support plate; 31. sealing groove; 32. sealing gasket; 4. limiting mechanism; 41. connecting frame; 42. rack; 43. gear; 44. rotating rod; 45. limiting member; 451. ratchet; 452. positioning shaft; 453. pawl; 454. reset member; 5. adjusting mechanism; 51. worm wheel; 52. worm. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Embodiment 1

[0036] In order to solve the technical problems in the background technology, the following sample strip making mold for pipe masterbatch performance testing is provided:

[0037] Combination Figure 1-Figure 5As shown, the spline production mold for pipe masterbatch performance testing provided by the utility model includes a mold base 1, a mounting cavity 11 is installed in the mold base 1, a plurality of spline forming grooves 12 are opened on the top of the mold base 1 and are connected to the inside of the mounting cavity 11, a connecting shell 13 with a rectangular cross-section is fixedly installed on the top wall of the mounting cavity 11 and located outside the spline forming grooves 12, and an electric heating plate 14 is fixedly installed in the mounting cavity 11, which is sleeved on the outside of the connecting shell 13 and fits with the outer side wall of the connecting shell 13. Specifically, an electric heating wire is provided in the electric heating plate 14, and the electric heating wire is powered by an external power supply. When in use, the electric heating wire is energized, and the electric heating wire converts electrical energy into thermal energy, thereby increasing the temperature of the electric heating plate 14, thereby achieving a heating effect on the connecting shell 13; a lifting unit is installed on the bottom wall of the mounting cavity 11 and located below the plurality of spline forming grooves 12, and the lifting unit includes a lifting unit symmetrically installed on the mounting The lifting mechanism 2 is on the inner bottom wall of the cavity 11, and an inner support plate 3 is installed at the top of the two lifting mechanisms 2 and located in the connecting shell 13. The outer wall of the inner support plate 3 is in contact with the inner wall of the connecting shell 13. The inner support plate 3 is displaced upward in the connecting shell 13 through the two lifting mechanisms 2, so that the inner support plate 3 extends to the top of the mold base 1. Specifically, when the inner support plate 3 is located at the bottom position of the inner wall of the connecting shell 13, the state of the two lifting mechanisms 2 changes; a limiting mechanism 4 connected to multiple groups of lifting units is installed on the mold base 1, and the limiting mechanism 4 is used to limit the action of multiple lifting mechanisms 2 to fix the positions of multiple inner support plates 3. A mold cover 16 for sealing multiple spline forming grooves 12 is hinged on the mold base 1 through a hinge shaft 15, and an adjusting mechanism 5 acting on the hinge shaft 15 is installed on the mold base 1, which is used to rotate or stop the hinge shaft 15 on the mold base 1.

[0038] When the spline for testing the performance of the masterbatch of the pipe is made, the multiple inner support plates 3 are respectively located at the bottom of the inner side walls of the multiple connecting shells 13, the states of the multiple lifting mechanisms 2 are changed, the limiting mechanism 4 limits the movement of the multiple lifting mechanisms 2, and the masterbatch is quantitatively fed into the multiple connecting shells 13 respectively, and then the hinge shaft 15 is rotated on the mold base 1 by the adjusting mechanism 5, so that the mold cover 16 blocks the multiple spline molding grooves 12, and the multiple electric heating plates 14 are controlled to work, and the multiple connecting shells 13 are heated respectively, so that the masterbatch in the multiple spline molding grooves 12 is melted into liquid, and the masterbatch is melted into liquid. After the masterbatch of the body is cooled, a spline for testing the performance of the masterbatch can be formed, and a plurality of splines for testing the performance of the masterbatch can be obtained; after the spline for testing the performance of the masterbatch is produced, the hinge shaft 15 is rotated on the die base 1 through the adjusting mechanism 5, and the blocking of the plurality of spline forming grooves 12 by the die cover 16 is cancelled, and then the restriction on the movement of the plurality of lifting mechanisms 2 is cancelled through the limiting mechanism 4, and the plurality of inner support plates 3 can be respectively extended to the top of the die base 1 through the plurality of lifting mechanisms 2, so that the splines for testing the performance of the masterbatch can be unloaded, and the overall operation is simple, thereby improving the production efficiency of the splines for testing the performance of the pipe masterbatch.

[0039] Embodiment 2

[0040] like Figure 1-Figure 5 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0041] In this embodiment, the lifting mechanism 2 includes a bottom plate 21 fixedly mounted on the inner bottom wall of the mounting cavity 11, a guide shell 22 fixedly mounted on the bottom plate 21, a guide rod 23 movably penetrates the top of the guide shell 22, a sleeve shell 24 that can be sleeved on the outside of the bottom plate 21 is fixed on the top of the guide rod 23, a spring 25 sleeved on the outside of the guide shell 22 is installed in the sleeve shell 24, and the two ends of the spring 25 are respectively connected to the bottom plate 21 and the inner top wall of the sleeve shell 24. When in use, when the inner support plate 3 is located at the bottom position of the inner side wall of the connecting shell 13, the sleeve shell 24 is sleeved on the outside of the guide shell 22, the guide rod 23 is hidden in the guide shell 22, and the spring 25 is deformed by force. When the movement restriction of the multiple lifting mechanisms 2 is cancelled by the limiting mechanism 4, the spring 25 returns to its natural state, pushing the sleeve shell 24 to slide along the guide rod 23 to the outside of the guide shell 22, thereby pushing the inner support plate 3 to move upward in the connecting shell 13.

[0042] In this embodiment, the adjusting mechanism 5 includes a worm wheel 51 coaxially fixed to the articulated shaft 15, and a worm 52 meshing with the worm wheel 51 is rotatably mounted on the mold base 1. When in use, the articulated shaft 15 can be driven to rotate on the mold base 1 through the worm wheel 51 by rotating the worm 52. The operation is simple. Since the meshing of the worm wheel 51 and the worm 52 is self-locking, the worm wheel 51 will not rotate when the worm 52 is not rotated, thereby fixing the position of the articulated shaft 15 for easy use.

[0043] In this embodiment, the limiting mechanism 4 includes: a connecting frame 41, which is fixedly connected to the bottom positions of the outer side walls of the plurality of sleeves 24; a rack 42, which is vertically oriented and fixedly mounted on the connecting frame 41; a gear 43, on which a horizontal rotating rod 44 is rotatably mounted, one end of which extends into the mounting cavity 11 and is coaxially fixedly connected to a gear 43 meshing with the rack 42; a limiting member 45, which is mounted on the mold base 1 and connected to the rotating rod 44, and the limiting member 45 is used to limit or cancel the restriction on the rotating rod 44 from rotating on the mold base 1. When in use, the rotating rod 44 is limited on the mold base by the limiting member 45. 1, the gear 43 will not rotate, the gear 43 is meshed with the rack 42, so that the position of the rack 42 is fixed, and the position of the connecting frame 41 is fixed, so that the positions of multiple sleeves 24 can be fixed, and the positions of multiple inner support plates 3 can be fixed. When the rotation restriction of the rotating rod 44 on the mold base 1 is cancelled by the limiting member 45, the spring 25 returns to the natural state, and pushes the sleeve 24 to slide along the guide rod 23 to the outside of the guide shell 22, drives the connecting frame 41 to move upward, drives the rack 42 to move upward, and drives the rotating rod 44 to rotate through the gear 43, so as not to affect the pushing of the inner support plate 3 to move upward in the connecting shell 13.

[0044] Embodiment 3

[0045] like Figure 1-Figure 5 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0046] In this embodiment, the limiting member 45 includes a ratchet 451 coaxially fixed to the rotating rod 44, a positioning shaft 452 is fixedly installed on the mold base 1, a pawl 453 meshing with the ratchet 451 is rotatably connected to the positioning shaft 452, and a reset member 454 acting on the pawl 453 is installed on the positioning shaft 452, which is used to rotate the pawl 453 on the positioning shaft 452 so that the pawl 453 meshes with the ratchet 451. Specifically, it is to be explained that the pawl 453 is meshed with the ratchet 451, and when the ratchet 451 rotates unidirectionally around the rotating rod 44 to rotate the gear 43, the connecting frame 41 is displaced downward by the rack 42, which does not affect the downward displacement of the inner support plate 3, and a force is applied to the pawl 453 so that it is moved on the positioning shaft 452 When the pawl 453 is rotated upward so that the pawl 453 is not engaged with the ratchet 451, the lock of the ratchet 451 is cancelled, thereby not restricting the rotation of the rotating rod 44. At this time, the sleeve shell 24 can be pushed to slide along the guide rod 23 to the outside of the guide shell 22 under the action of the spring 25; through the design of the reset member 454, a force is applied to the pawl 453, so that when it rotates on the positioning shaft 452, the force state of the reset member 454 changes. When the force on the pawl 453 is cancelled, the reset member 454 returns to its original state, and the pawl 453 can be rotated on the positioning shaft 452, so that the pawl 453 is engaged with the ratchet 451. Now the rotating rod 44 rotates unidirectionally, and with the cooperation of the spring 25, the position of the multiple inner support plates 3 is fixed.

[0047] In this embodiment, the reset member 454 is a coil spring. Specifically, the coil spring is sleeved on the outside of the positioning shaft 452, and the two ends of the coil spring are respectively fixed to the positioning shaft 452 and the pawl 453. When in use, a force is applied to the pawl 453 to rotate around the positioning shaft 452, and the coil spring is deformed by the force. When the force on the pawl 453 is cancelled, the coil spring returns to its natural state, so that the pawl 453 can be rotated and reset around the positioning shaft 452, so that the pawl 453 is engaged with the ratchet 451.

[0048] In this embodiment, a sealing groove 31 is formed on the outer wall of the inner support plate 3, and a sealing gasket 32 ​​is inserted into the sealing groove 31 and fits with the inner wall of the connecting shell 13. The design of the sealing gasket 32 ​​increases the fit between the inner support plate 3 and the inner wall of the connecting shell 13, thereby increasing the sealing between the inner support plate 3 and the connecting shell 13 and improving the sealing effect between the inner support plate 3 and the connecting shell 13.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0050] 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 aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The mold for making the sample strip for pipe masterbatch performance testing is characterized by: The mold base comprises a mounting cavity installed in the mold base, a plurality of spline forming grooves which are all connected to the inside of the mounting cavity are opened on the top of the mold base, a connecting shell with a rectangular cross section is fixedly installed on the top wall of the mounting cavity and outside the spline forming grooves, and an electric heating plate which is sleeved on the outside of the connecting shell and fits with the outer wall of the connecting shell is fixedly installed in the mounting cavity; A lifting unit is installed on the bottom wall of the installation cavity and below the multiple spline forming grooves. The lifting unit includes a lifting mechanism symmetrically installed on the bottom wall of the installation cavity. An inner support plate is installed on the top of the two lifting mechanisms and located in the connecting shell. The outer wall of the inner support plate fits the inner wall of the connecting shell. The inner support plate is displaced upward in the connecting shell through the two lifting mechanisms so that the inner support plate extends above the mold base. The mold base is provided with a limiting mechanism connected to multiple groups of lifting units, the limiting mechanism is used to limit the movement of the multiple lifting mechanisms to fix the positions of the multiple inner support plates, the mold base is hinged with a mold cover for sealing multiple spline forming grooves through a hinge shaft, and the mold base is provided with an adjusting mechanism acting on the hinge shaft, which is used to make the hinge shaft rotate or stop rotating on the mold base.

2. The mold for making a spline for testing the performance of a pipe masterbatch according to claim 1, characterized in that: The lifting mechanism includes a bottom plate fixedly mounted on the bottom wall of the mounting cavity, a guide shell fixedly mounted on the bottom plate, a guide rod movably passing through the top of the guide shell, a sleeve shell fixed on the top of the guide rod and capable of being sleeved on the outside of the bottom plate, a spring sleeved on the outside of the guide shell installed in the sleeve shell, and two ends of the spring are respectively connected to the bottom plate and the top wall of the sleeve shell.

3. The mold for making a spline for testing the performance of a pipe masterbatch according to claim 1, characterized in that: The adjusting mechanism comprises a worm wheel which is coaxially fixed to the hinge shaft, and a worm which meshes with the worm wheel is rotatably mounted on the mold base.

4. The mold for making a spline for testing the performance of a pipe masterbatch according to claim 2, characterized in that: The limiting mechanisms include: A connecting frame, the connecting frame is fixedly connected to the bottom positions of the outer side walls of the plurality of casings; The rack is vertically oriented and fixedly mounted on the connecting frame; Gear, a horizontal rotating rod is rotatably mounted on the mold base, one end of the rotating rod extends into the mounting cavity and is coaxially fixed with a gear meshing with the rack; The limiting member is installed on the die base and connected with the rotating rod. The limiting member is used to limit or cancel the restriction on the rotating rod rotating on the die base.

5. The mold for making a spline for testing the performance of a pipe masterbatch according to claim 4, characterized in that: The limiting member includes a ratchet coaxially fixed to the rotating rod, a positioning shaft is fixedly installed on the mold base, a pawl meshing with the ratchet is rotatably connected to the positioning shaft, and a reset member acting on the pawl is installed on the positioning shaft, which is used to make the pawl rotate on the positioning shaft so that the pawl meshes with the ratchet.

6. The mold for making a spline for testing the performance of a pipe masterbatch according to claim 5, characterized in that: The reset element is a coil spring.

7. The mold for making a spline for testing the performance of a pipe masterbatch according to claim 1, characterized in that: The outer side wall of the inner supporting plate is provided with a sealing groove, and a sealing gasket which fits the inner side wall of the connecting shell is inserted in the sealing groove.

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