Toothpaste skin blow molding device

Abstract

The invention discloses a toothpaste skin blow molding device, relates to the technical field of blow molding, and aims to solve the technical problem of low functionality of the toothpaste skin blow molding device. The device comprises a blow molding machine body, on which a mold structure is arranged. The invention designs the mold structure for blow molding so that when an arc plate is movably connected to a movable groove, a threaded half cavity, a plurality of arc plates, a truncated cone half cavity, a lower mold and an active end of a lifting ring mechanism form a truncated cone-shaped toothpaste skin blow molding half cavity, which is used for the blow molding machine body to blow-mold the truncated cone-shaped toothpaste skin on the truncated cone-shaped toothpaste skin blow molding half cavity. When the arc plate is movably connected to the active end of the lifting ring mechanism, the threaded half cavity, a plurality of arc plates and the lifting ring mechanism form a cylindrical toothpaste skin blow molding half cavity, which is used for the blow molding machine body to blow-mold the cylindrical toothpaste skin on the truncated cone-shaped toothpaste skin blow molding half cavity, so that the mold structure for blow molding of the invention can be used for blow molding of truncated cone-shaped toothpaste skin and cylindrical toothpaste skin at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of blow molding, and more specifically to a toothpaste skin blow molding device. Background Art

[0002] Blow molding is a method used to process hollow containers such as bottles. It is a processing method in which thermoplastic resin is extruded or injected to preform into a tubular parison, which is then placed in a metal mold cavity and blown to make it adhere closely to the inner wall of the cavity, and then cooled and solidified.

[0003] Toothpaste is a kind of daily necessities, and there are many kinds of it. Among them, squeezed toothpaste and press-type toothpaste are two common packaging forms. Squeeze-type toothpaste is usually packaged in a plastic hose. When using it, you need to squeeze the hose to squeeze the toothpaste out of the tube. Press-type toothpaste is designed with a pump head. When using it, you only need to press it lightly, and the toothpaste can be sprayed out from the pump head. This kind of toothpaste packaging is more modern and convenient, especially suitable for home use. The existing press-type toothpaste toothpaste skin is mostly Figure 1 The columnar shape and the truncated cone shape with a small top and a large bottom are usually manufactured by blow molding.

[0004] Most of the existing blow molding molds for toothpaste skins have only one cavity and can only produce toothpaste skins of one shape, with low functionality, and the blow molding molds are expensive. In view of this, we propose a toothpaste skin blow molding device. Summary of the invention

[0005] The object of the present invention is to provide a toothpaste tube blow molding device to solve the technical problem of low functionality of the toothpaste tube blow molding device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a toothpaste skin blow molding device, comprising a blow molding machine body, on which a mold structure is arranged, characterized in that the mold structure comprises an upper mold and a lower mold;

[0007] The upper mold comprises two half molds arranged in a symmetrical structure, the top of the half mold is provided with a threaded half cavity, the bottom of the half mold is provided with a truncated cone half cavity, the top of the truncated cone half cavity is provided with a mounting groove, a rotating mechanism is arranged in the mounting groove, the rotating mechanism has a plurality of rotating ends, the bottom of the mounting groove is annular and equidistantly spaced structure and is connected with a plurality of movable grooves, arc plates are movably matched in the plurality of movable grooves, and the tops of the plurality of arc plates are respectively fixedly connected with the plurality of rotating ends;

[0008] The lower mold is provided with a moving mechanism, the two half molds are respectively connected to the two ends of the moving mechanism, a lifting ring mechanism is arranged at the center of the lower mold, and the arc plates are movably matched with the movable ends of the lifting ring mechanism;

[0009] When the arc plate is movably connected to the movable groove, the threaded half cavity, the plurality of arc plates, the conical half cavity, the lower mold and the movable end of the lifting ring mechanism form a conical toothpaste skin blowing half cavity; when the arc plate is movably connected to the movable end of the lifting ring mechanism, the threaded half cavity, the plurality of arc plates and the lifting ring mechanism form a cylindrical toothpaste skin blowing half cavity. The present invention designs a mold structure for blow molding so that when the arc plate is movably connected to the movable groove, the threaded half cavity, a plurality of arc plates, a truncated cone half cavity, a lower mold and the movable end of a lifting ring mechanism form a truncated cone-shaped toothpaste skin blow molding half cavity, which is used for the blow molding machine body to blow mold the truncated cone-shaped toothpaste skin on the truncated cone-shaped toothpaste skin blow molding half cavity; when the arc plate is movably connected to the movable end of the lifting ring mechanism, the threaded half cavity, a plurality of arc plates and the lifting ring mechanism form a cylindrical toothpaste skin blow molding half cavity, which is used for the blow molding machine body to blow mold the cylindrical toothpaste skin on the truncated cone-shaped toothpaste skin blow molding half cavity, so that the mold structure for blow molding of the present invention can be used for blow molding of truncated cone-shaped toothpaste skin and cylindrical toothpaste skin at the same time.

[0010] Preferably, the mounting groove includes a semi-annular groove A, which is opened in the half mold relative to the top end of the truncated cone half cavity, and a semi-annular groove B is opened at the top end of the semi-annular groove A. Several rotation grooves are opened on the semi-annular groove A relative to the positions of several arc plates, and a circular groove A is opened at the gap position between two of the rotation grooves on one of the mounting grooves, and the circular groove A is connected with the semi-annular groove A, and a circular groove B is provided above the circular groove A, and the circular groove B is opened at the top end of the half mold, and several snap-in ball grooves are opened in an arc-shaped equidistant structure on the semi-annular groove A, and the snap-in ball grooves are located below the circular groove A.

[0011] Preferably, the rotating mechanism comprises an arc block A, an arc block B and a plurality of rotating blocks, and the plurality of rotating blocks are rotatably arranged on the plurality of rotating grooves respectively, and the radius of the rotating block gradually increases from the middle to both sides, and the rotating groove is adapted to the shape of the rotating block, and the rotating block is fixedly connected to the arc plate, and a through hole is provided on the rotating block, and a rotating ring is fixedly provided on the through hole, and a rotating guide groove is provided on the inner edge surface of the rotating ring, and the arc block A is in contact with and cooperates with the arc block B, and the arc block A and the arc block B are connected to form a semicircular ring, and the semicircular ring is rotatably arranged on the semi-ring groove A, and a guide block is fixedly provided on the top of the semicircular ring in an arc-shaped equidistant structure, and the guide block is movably cooperated with the semi-ring groove B, and the guide block is movably cooperated with the rotating guide groove.

[0012] Preferably, at least one cylindrical groove is provided at the bottom end of the outer edge surface of the arc block A and the arc block B, and a movable column is movably connected to the cylindrical groove, and the movable column is elastically connected to the cylindrical groove through a spring, and a snap-in ball block is fixed on the movable column, and the snap-in ball block is snap-fitted with the snap-in ball groove.

[0013] Preferably, a tooth groove is provided on the outer edge surface of the semicircular ring, a gear is provided on the circular groove A, the gear is meshed with the tooth groove, a rotating shaft is fixed to the top of the gear, the top of the rotating shaft penetrates into the circular groove B and is fixed with an adjusting block, the adjusting block is rotatably connected to the circular groove B, and an adjusting screw groove is provided on the top of the adjusting block.

[0014] Preferably, the rotation guide groove comprises an arc-shaped groove, and both ends of the arc-shaped groove are provided with partial thread guide grooves;

[0015] Among them, the gap distance between two adjacent guide blocks is smaller than the vertical distance between the two partially threaded guide grooves relatively away from one end, and the gap distance between two adjacent guide blocks is larger than the vertical distance between the arc groove and the partially threaded guide groove relatively away from one end.

[0016] Preferably, movable empty grooves are provided at both ends of the lower mold, a sliding groove is provided at the bottom of the movable empty groove, a circular cavity is provided at the center position of the top end of the lower mold, a rotating column groove is provided at the bottom of the circular cavity, a plurality of vertical grooves are provided in a circular equidistant structure on the surface of the circular cavity, and an installation cavity is provided at the bottom of the rotating column groove.

[0017] Preferably, the opposing moving mechanism includes opposing screw rods, a motor A and two groups of sliders, the two groups of sliders are slidably arranged on the two slide grooves respectively, each group of sliders includes two sliders arranged in a symmetrical structure, a connecting column is fixedly provided on the top of the slider, the top of the connecting column passes through the movable empty groove and is fixedly connected to the bottom end of the half mold, the opposing screw rod is rotatably arranged on one of the slide grooves, the corresponding two sliders are threadedly connected to the opposing screw rod, the motor A is fixedly arranged on one side of the lower mold relative to the opposing screw rod, and the opposing screw rod passes through the lower mold at one end close to the motor A and is fixedly connected to the output shaft of the motor A.

[0018] Preferably, the lifting ring mechanism includes a motor B and a guide column, the motor B is fixed on the installation cavity, the guide column is rotatably arranged on the rotating column groove, a connecting shaft is fixedly arranged at the bottom end of the guide column, the bottom end of the connecting shaft penetrates into the installation cavity and is fixedly connected to the output shaft of the motor B, the surface of the guide column is an annular equidistant structure with a plurality of lifting guide grooves, the lifting guide grooves are movably connected with a guide ball block, a functional ring is sleeved on the rotating column groove, the functional ring is movably connected to the circular cavity, the guide ball block is fixedly connected to the bottom end of the inner edge surface of the functional ring, the outer edge surface of the functional ring is an annular equidistant structure with a plurality of limit blocks fixedly arranged, the limit blocks are slidably connected to the vertical groove.

[0019] Preferably, the lifting guide groove comprises a partial thread groove, and both ends of the partial thread groove are connected to each other and are provided with limiting arc grooves.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention designs a mold structure for blow molding so that when the arc plate is movably connected to the movable groove, the threaded half cavity, a plurality of arc plates, a truncated cone half cavity, a lower mold and a movable end of a lifting ring mechanism form a truncated cone-shaped toothpaste skin blow molding half cavity, which is used for the blow molding machine body to blow-mold the truncated cone-shaped toothpaste skin on the truncated cone-shaped toothpaste skin blow molding half cavity; when the arc plate is movably connected to the movable end of the lifting ring mechanism, the threaded half cavity, a plurality of arc plates and a lifting ring mechanism form a cylindrical toothpaste skin blow molding half cavity, which is used for the blow molding machine body to blow-mold the cylindrical toothpaste skin on the truncated cone-shaped toothpaste skin blow molding half cavity, so that the mold structure for blow molding of the present invention can be used for blow molding of truncated cone-shaped toothpaste skin and cylindrical toothpaste skin at the same time.

[0022] 2. The present invention arranges the rotating mechanism so that when the two half molds are put together, one of the arc blocks A or arc block B is rotated, and the ring block composed of two semi-circular rings rotates on the rotating ring groove A composed of two semi-ring grooves A on the two half molds, and all the guide blocks rotate on the rotating ring groove B composed of the two semi-ring grooves B. When the guide block passes through the rotating guide groove, the rotating ring drives the rotating block to rotate along the rotating groove, thereby causing a plurality of arc plates to rotate simultaneously. It is worth mentioning that during the rotation of the ring block, the arc block A is driven by the semi-ring groove A where it is located. Move toward the other semi-annular groove A. When the positions of several arc blocks A are replaced from the truncated cone-shaped toothpaste skin blow-molded form to the cylindrical toothpaste skin blow-molded form or from the cylindrical toothpaste skin blow-molded form to the truncated cone-shaped toothpaste skin blow-molded form, the arc blocks A are separated from the semi-annular groove A where they were originally located and just completely enter the other semi-annular groove A, so that the arc block A and the other arc block B form a new semicircular ring, so that the opposite moving mechanism 7 can still drive the two half molds to move toward each other for blow molding and blow molding removal.

[0023] 3. The present invention further arranges arc blocks A and arc blocks B, so that when the truncated cone-shaped toothpaste skin is blow-molded and the cylindrical toothpaste skin is blow-molded, the snap-in ball blocks are snap-fitted with the snap-in ball grooves, and arc blocks A and arc blocks B have a certain rotational resistance, and the position of arc block A is preliminarily positioned, so that when the opposite moving mechanism can still drive the two half molds to move oppositely, the semi-circular ring is not easy to rotate on the semi-ring groove A.

[0024] 4. The present invention further designs the rotating guide groove so that when the guide block moves in the partial thread guide groove, the rotating ring can rotate, and when it moves on the arc groove, the rotating ring does not rotate, and the guide block provides a rotation limit for the rotating ring, so that the rotating ring cannot rotate, thereby ensuring the stability of the truncated cone-shaped toothpaste skin blow-molded form and the cylindrical toothpaste skin blow-molded form, and setting the gap distance between two adjacent guide blocks to be smaller than the vertical distance between the two partial thread guide grooves relatively far away from one end, so that at least one guide block is located in the rotating guide groove, and setting the gap distance between two adjacent guide blocks to be larger than the vertical distance between the arc groove and the partial thread guide groove relatively far away from one end, so that when the guide block is in the arc groove, no other guide blocks are located in the rotating guide groove where the arc groove is located, and no interference in the movement of the guide blocks will occur.

[0025] 5. The present invention adopts the structural design of the lifting guide groove, so that when the guide ball block is located on the limiting arc groove, the position of the guide ball block remains unchanged, and the limiting arc groove provides a limiting force in the vertical direction for the guide ball block, thereby ensuring the stability of the truncated cone-shaped toothpaste skin blow-molded shape and the cylindrical toothpaste skin blow-molded shape in the blow-molded state. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of truncated cone-shaped and cylindrical push-type toothpaste;

[0027] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the mold structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the structural disassembly of the mold structure of the present invention;

[0030] Figure 5 It is a partial structural schematic diagram of a half mold of the present invention;

[0031] Figure 6 It is a schematic diagram of the partial structural disassembly of the half mold of the present invention;

[0032] Figure 7 for Figure 6 A schematic diagram of the enlarged structure of part A;

[0033] Figure 8 It is a schematic diagram of the rotating mechanism and arc plate structure of the present invention;

[0034] Fig. 9 It is a partial structural schematic diagram of the present invention;

[0035] Fig.10 It is a schematic diagram of the split structure of the arc block A, arc block B, tooth groove and guide block of the present invention;

[0036] Fig.11 for Fig.10 A schematic diagram of the enlarged structure of part B;

[0037] Fig.12 It is a schematic diagram of the split structure of the rotating ring of the present invention;

[0038] Fig.13 It is a schematic diagram of the disassembled structure of the lower grinding tool, the opposing moving mechanism and the lifting ring mechanism of the present invention;

[0039] Fig.14 It is a schematic diagram of the partial structural disassembly of the lifting ring mechanism of the present invention;

[0040] Fig.15 It is a schematic cross-sectional view of a part of the mold structure of the truncated cone-shaped toothpaste skin blow molding of the present invention;

[0041] Fig.16 It is a partial structural cross-sectional schematic diagram of the mold structure of the cylindrical toothpaste tube blow molding of the present invention.

[0042] Description of the numbers in the figure:

[0043] 1. Blow molding machine body; 2. Mold structure; 3. Upper mold; 4. Lower mold; 5. Half mold; 6. Rotation mechanism; 7. Opposite movement mechanism; 8. Lifting ring mechanism;

[0044] 41. movable empty slot; 42. slide slot; 43. round cavity; 44. rotating column slot; 45. vertical slot; 46. installation cavity;

[0045] 51. Threaded half cavity; 52. Cone half cavity; 53. Mounting groove; 54. Movable groove; 55. Arc plate;

[0046] 531, semi-ring groove A; 532, semi-ring groove B; 533, rotating groove; 534, circular groove A; 535, circular groove B; 536, ball-catching groove;

[0047] 61. Rotating block; 62. Through hole; 63. Rotating ring; 64. Rotating guide groove; 65. Arc block A; 66. Arc block B; 67. Tooth groove; 68. Guide block;

[0048] 601, cylindrical groove; 602, movable column; 603, spring; 604, clamping ball block;

[0049] 641, arc groove; 642, partial thread guide groove;

[0050] 670, rotating shaft; 671, gear; 672, adjusting block; 673, adjusting screw groove;

[0051] 71. Slider; 72. Connecting column; 73. Opposite screw rod; 74. Motor A;

[0052] 80, coupling shaft; 81, motor B; 82, guide column; 83, lifting guide groove; 84, guide ball block; 85, functional ring; 86, limit block;

[0053] 831, partial thread groove; 832, limit arc groove. DETAILED DESCRIPTION

[0054] like Figures 1 to 16 As shown, the present invention relates to a toothpaste skin blow molding device, comprising a blow molding machine body 1, on which a mold structure 2 is arranged, characterized in that the mold structure 2 comprises an upper mold 3 and a lower mold 4; the upper mold 3 comprises two half molds 5 arranged in a symmetrical structure, the top of the half mold 5 is provided with a threaded half cavity 51, the bottom of the half mold 5 is provided with a truncated cone half cavity 52, the top of the truncated cone half cavity 52 is provided with a mounting groove 53, a rotating mechanism 6 is arranged in the mounting groove 53, the rotating mechanism 6 has a plurality of rotating ends, the bottom of the mounting groove 53 is annular and equidistantly arranged with a plurality of movable grooves 54, the plurality of movable grooves 54 are movably matched with arc plates 55, and the plurality of movable grooves 54 are movably matched with arc plates 55. The top of the arc plate 55 is fixedly connected to several rotating ends respectively; the lower mold 4 is provided with an opposing moving mechanism 7, and the two half molds 5 are respectively connected to the two ends of the opposing moving mechanism 7, and the center of the lower mold 4 is provided with a lifting ring mechanism 8, and several arc plates 55 are movably matched with the movable end of the lifting ring mechanism 8; when the arc plate 55 is movably connected to the movable groove 54, the threaded half cavity 51, several arc plates 55, the truncated cone half cavity 52, the lower mold 4 and the movable end of the lifting ring mechanism 8 form a truncated cone-shaped toothpaste skin blowing half cavity, and when the arc plate 55 is movably connected to the movable end of the lifting ring mechanism 8, the threaded half cavity 51, several arc plates 55 and the lifting ring mechanism 8 form a cylindrical toothpaste skin blowing half cavity. The blow molding machine body 1 of the present invention is a prior art and will not be described in detail here.

[0055] In an embodiment of the present invention, the mounting groove 53 includes a semi-annular groove A531, which is opened in the half mold 5 relative to the top of the truncated cone half cavity 52. ​​A semi-annular groove B532 is opened at the top of the semi-annular groove A531. A plurality of rotating grooves 533 are opened on the semi-annular groove A531 relative to the positions of the plurality of arc plates 55. A circular groove A534 is opened at the gap position between two rotating grooves 533 on one of the mounting grooves 53. The circular groove A534 is connected to the semi-annular groove A531. A circular groove B535 is opened above the circular groove A534. The circular groove B535 is opened at the top of the half mold 5. A plurality of snap-in ball grooves 536 are opened in an arc-shaped equidistant structure on the semi-annular groove A531. The snap-in ball grooves 536 are located below the circular groove A534.

[0056] In an embodiment of the present invention, the rotating mechanism 6 includes an arc block A65, an arc block B66 and a plurality of rotating blocks 61, and the plurality of rotating blocks 61 are rotatably arranged on a plurality of rotating grooves 533 respectively. The radius of the rotating block 61 gradually increases from the middle to both sides. The rotating grooves 533 are adapted to the shape of the rotating block 61. The rotating block 61 is fixedly connected to the arc plate 55. A through hole 62 is provided on the rotating block 61, and a rotating ring 63 is fixedly provided on the through hole 62. A rotating guide groove 64 is provided on the inner edge surface of the rotating ring 63. The arc block A65 is in contact with the arc block B66. The arc block A65 and the arc block B66 are connected to form a semicircular ring. The semicircular ring is rotatably arranged on the semicircular groove A531. The top of the semicircular ring is an arc-shaped equidistant structure and a guide block 68 is fixedly provided. The guide block 68 is movably matched with the semicircular groove B532, and the guide block 68 is movably matched with the rotating guide groove 64. The present invention arranges the rotating mechanism 6 so that when the two half molds 5 are put together, one of the arc blocks A65 or arc block B66 is rotated, and the ring block composed of two semi-circular rings rotates on the rotating ring groove A composed of two semi-ring grooves A531 on the two half molds 5, and all the guide blocks 68 rotate on the rotating ring groove B composed of two semi-ring grooves B532. When the guide block 68 passes through the rotating guide groove 64, the rotating ring 63 drives the rotating block 61 to rotate along the rotating groove 533, so that a plurality of arc plates 55 rotate simultaneously. It is worth mentioning that during the rotation of the ring block, the arc block A65 is rotated by the arc block A531 on the two half molds 5. The semi-annular groove A531 moves toward another semi-annular groove A531. When the positions of several arc blocks A65 are replaced from the truncated cone-shaped toothpaste skin blow-molded form to the cylindrical toothpaste skin blow-molded form, or the cylindrical toothpaste skin blow-molded form is replaced from the truncated cone-shaped toothpaste skin blow-molded form, the arc blocks A65 are separated from the semi-annular groove A531 where they were originally located and just completely enter into another semi-annular groove A531, so that the arc block A65 and another arc block B66 form a new semicircular ring, so that the opposite moving mechanism 7 can still drive the two half molds 5 to move toward each other for blow molding and blow molding removal.

[0057] In the embodiment of the present invention, at least one cylindrical groove 601 is provided at the bottom of the outer edge surface of arc block A65 and arc block B66, and a movable column 602 is movably connected to the cylindrical groove 601, and the movable column 602 is elastically connected to the cylindrical groove 601 through a spring 603, and a clamping ball block 604 is fixed on the movable column 602, and the clamping ball block 604 is clamped with the clamping ball groove 536. Through the above arrangement, the present invention makes the clamping ball block 604 clamped with the clamping ball groove 536 when the truncated cone toothpaste skin is blow-molded and the cylindrical toothpaste skin is blow-molded, and the arc block A65 and arc block B66 have a certain rotation resistance, and the position of the arc block A65 is preliminarily positioned, so that when the opposite moving mechanism 7 can still drive the two half molds 5 to move oppositely, the semicircular ring is not easy to rotate on the semi-ring groove A531.

[0058] In the embodiment of the present invention, a tooth groove 67 is provided on the outer edge surface of the semicircular ring, a gear 671 is provided on the circular groove A534, the gear 671 meshes with the tooth groove 67, a rotating shaft 670 is fixed on the top of the gear 671, the top of the rotating shaft 670 penetrates into the circular groove B535 and is fixed with an adjustment block 672, the adjustment block 672 is rotatably connected to the circular groove B535, and an adjustment screw groove 673 is provided on the top of the adjustment block 672. Through the above arrangement, the present invention allows the hexagonal wrench to be inserted into the adjustment screw groove 673 and then rotated, and the adjustment block 672 drives the gear 671 to rotate through the rotating shaft 670, thereby causing the semicircular ring to rotate.

[0059] In the embodiment of the present invention, the rotation guide groove 64 includes an arc-shaped groove 641, and both ends of the arc-shaped groove 641 are provided with partial thread guide grooves 642;

[0060] The gap between two adjacent guide blocks 68 is smaller than the vertical distance between two partially threaded guide grooves 642 relatively far from one end, and the gap between two adjacent guide blocks 68 is larger than the vertical distance between the arc groove 641 and the partially threaded guide groove 642 relatively far from one end. The present invention further designs the rotating guide groove 64 so that when the guide block 68 moves in the partial threaded guide groove 642, the rotating ring 63 can be rotated. When it moves on the arc groove 641, the rotating ring 63 does not rotate, and the guide block 68 provides a rotation limit for the rotating ring 63, so that the rotating ring 63 cannot rotate, thereby ensuring the stability of the truncated cone-shaped toothpaste skin blow-molded form and the cylindrical toothpaste skin blow-molded form. The gap distance between two adjacent guide blocks 68 is set to be smaller than the vertical distance between the two partial threaded guide grooves 642 relatively far from one end, so that at least one guide block 68 is located in the rotating guide groove 64, and the gap distance between two adjacent guide blocks 68 is set to be larger than the vertical distance between the arc groove 641 and the partial threaded guide groove 642 relatively far from one end, so that when the guide block 68 is in the arc groove 641, no other guide block 68 is located in the rotating guide groove 64 where the arc groove 641 is located, and no interference in the movement of the guide block 68 will occur.

[0061] In an embodiment of the present invention, movable grooves 41 are provided at both ends of the lower mold 4, a slide groove 42 is provided at the bottom of the movable groove 41, a circular cavity 43 is provided at the center of the top end of the lower mold 4, a rotating column groove 44 is provided at the bottom of the circular cavity 43, and a plurality of vertical grooves 45 are provided in a circular equidistant structure on the surface of the circular cavity 43, and an installation cavity 46 is provided at the bottom of the rotating column groove 44.

[0062] In an embodiment of the present invention, the opposing moving mechanism 7 includes an opposing screw rod 73, a motor A74 and two groups of sliders 71. The two groups of sliders 71 are respectively slidably arranged on two slide grooves 42. Each group of sliders 71 includes two sliders arranged in a symmetrical structure. A connecting column 72 is fixedly arranged at the top of the slider 71. The top of the connecting column 72 passes through the movable empty groove 41 and is fixedly connected to the bottom of the half mold 5. The opposing screw rod 73 is rotatably arranged on one of the slide grooves 42. The corresponding two sliders 71 are both threadedly connected with the opposing screw rod 73. The motor A74 is fixedly arranged on one side of the lower mold 4 relative to the opposing screw rod 73. The opposing screw rod 73 passes through the lower mold 4 near one end of the motor A74 and is fixedly connected to the output shaft of the motor A74. The present invention uses the structural design of the opposing moving mechanism 7 to control the rotation of the output shaft of the motor A74 through an external control mechanism. The rotation of the opposing screw rod 73 causes the corresponding two sliders 71 to slide in opposite directions, so that the two lower molds 4 move in opposite directions, and the other two sliders 71 slide in opposite directions.

[0063] In an embodiment of the present invention, the lifting ring mechanism 8 includes a motor B81 and a guide column 82. The motor B81 is fixed on the installation cavity 46, and the guide column 82 is rotatably arranged on the rotating column groove 44. A connecting shaft 80 is fixedly arranged at the bottom end of the guide column 82. The bottom end of the connecting shaft 80 penetrates into the installation cavity 46 and is fixedly connected to the output shaft of the motor B81. The surface of the guide column 82 is an annular equidistant structure with a plurality of lifting guide grooves 83. The lifting guide grooves 83 are movably connected with guide ball blocks 84. A functional ring 85 is sleeved on the rotating column groove 44. The functional ring 85 is movably connected to the circular cavity 43. The guide ball block 84 is fixedly connected to the bottom end of the inner edge surface of the functional ring 85. The outer edge surface of the functional ring 85 is an annular equidistant structure with a plurality of limit blocks 86. The limit blocks 86 are slidably connected to the vertical groove 45. The present invention adopts the structural design of the lifting ring mechanism 8 so that the motor B81 can be controlled to rotate by an external control mechanism, and the connecting shaft 80 drives the guide column 82 and the lifting guide groove 83 to rotate. The rotation of the lifting guide groove 83 allows the guide ball block 84 to move on the lifting guide groove 83, so that the functional ring 85 can be lifted or lowered.

[0064] In the embodiment of the present invention, the lifting guide groove 83 includes a partial thread groove 831, and both ends of the partial thread groove 831 are connected to a limiting arc groove 832. The present invention uses the structural design of the lifting guide groove 83 to ensure that when the guide ball block 84 is located on the limiting arc groove 832, the position of the guide ball block 84 remains unchanged, and the limiting arc groove 832 provides a limiting force in the vertical direction to the guide ball block 84, thereby ensuring the stability of the truncated cone toothpaste skin blow molding form and the cylindrical toothpaste skin blow molding form in the blow molding state.

[0065] A method for using a toothpaste tube blow molding device comprises the following steps:

[0066] S1: Adjustment of the blow molding shape of the truncated cone-shaped toothpaste skin:

[0067] The output shaft of the motor A74 is controlled to rotate by an external control mechanism, so that the two lower molds 4 move toward each other until they contact each other. At this time, the two semicircular rings constitute a ring block, and the two semi-ring grooves A531 constitute a rotating ring groove A. The motor B81 is controlled to rotate by an external control mechanism, so that the functional ring 85 drops to an appropriate position, so that the hexagonal wrench is inserted into the adjusting screw groove 673 and then rotated, thereby rotating the semicircular ring. The ring block composed of the two semicircular rings rotates on the rotating ring groove A composed of the two semi-ring grooves A531 on the two half molds 5, and all the guide blocks 68 rotate on the rotating ring groove B composed of the two semi-ring grooves B532. When the guide block 68 passes through the rotating guide groove 64, the rotating ring 63 drives the rotating block 61 along the rotating groove 53 3 rotates, thereby making several arc plates 55 rotate at the same time. It is worth mentioning that during the rotation of the ring block, the arc block A65 moves from the semi-annular groove A531 where it is located to another semi-annular groove A531. When the replacement of the cylindrical toothpaste skin blow-molded form to the truncated cone toothpaste skin blow-molded form of several arc blocks A65 is completed, the arc block A65 is located in the movable groove 54, and the arc blocks A65 are all separated from the semi-annular groove A531 where they were originally located and just completely enter another semi-annular groove A531, so that the arc block A65 and another arc block B66 form a new semicircular ring, and the guide block 68 is on the arc groove 641, the rotating ring 63 does not rotate, and the guide block 68 provides a rotation limit for the rotating ring 63, so that the rotating ring 63 cannot rotate.

[0068] S2. Blow molding of truncated cone-shaped toothpaste skin:

[0069] like Fig.15 As shown, at this time, the threaded half cavity 51, the truncated cone half cavity 52, the arc plate 55, the circular cavity 43, the top of the lower mold 4, the guide column 82 and the functional ring 85 form a truncated cone-shaped toothpaste skin blowing cavity. After the truncated cone-shaped toothpaste skin is blown by the blow molding machine body 1, the output shaft of the motor A74 is controlled by the external control mechanism to rotate so that the two lower molds 4 are relatively separated. After the blow-molded truncated cone-shaped toothpaste skin is taken out, the output shaft of the motor A74 is controlled by the external control mechanism to rotate so that the two lower molds 4 move toward each other until they contact each other, and the above steps are repeated to blow the truncated cone-shaped toothpaste skin.

[0070] S3. Adjustment of the blow molding shape of cylindrical toothpaste skin:

[0071] The output shaft of the motor A74 is controlled to rotate by an external control mechanism, so that the two lower molds 4 move toward each other until they contact each other. At this time, the two semicircular rings constitute a ring block, and the two semi-ring grooves A531 constitute a rotating ring groove A. The motor B81 is controlled to rotate by an external control mechanism, so that the functional ring 85 is lowered to a proper position, so that the hexagonal wrench is inserted into the adjusting screw groove 673 and then rotated, so that the arc block B66 is rotated to a vertical state, and the motor B81 is controlled to rotate by an external control mechanism, so that the functional ring 85 rises to a proper position;

[0072] S4. Blow molding of cylindrical toothpaste tube:

[0073] like Fig.16 As shown, at this time, the threaded half cavity 51, the arc plate 55, the guide column 82 and the functional ring 85 form a cylindrical toothpaste skin blowing cavity. After the truncated cone-shaped toothpaste skin is blown by the blow molding machine body 1, the motor B81 is controlled to rotate by the external control mechanism so that the functional ring 85 drops to an appropriate position. The output shaft of the motor A74 is controlled to rotate by the external control mechanism so that the two lower molds 4 are relatively separated. After the blow-molded cylindrical toothpaste skin is taken out, the output shaft of the motor A74 is controlled to rotate by the external control mechanism so that the two lower molds 4 move toward each other until they contact each other. The motor B81 is controlled to rotate by the external control mechanism so that the functional ring 85 rises to an appropriate position. The above steps are repeated to blow the cylindrical toothpaste skin.

[0074] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A toothpaste tube blow molding device, comprising a blow molding machine body (1), wherein a mold structure (2) is arranged on the blow molding machine body (1), characterized in that: The mold structure (2) comprises an upper mold (3) and a lower mold (4); The upper mold (3) comprises two half molds (5) arranged in a symmetrical structure, the top of the half mold (5) is provided with a threaded half cavity (51), the bottom of the half mold (5) is provided with a truncated cone half cavity (52), the top of the truncated cone half cavity (52) is provided with a mounting groove (53), a rotating mechanism (6) is arranged in the mounting groove (53), the rotating mechanism (6) has a plurality of rotating ends, the bottom of the mounting groove (53) is in an annular structure with equal spacing and is connected to a plurality of movable grooves (54), the plurality of movable grooves (54) are movably matched with arc plates (55), and the tops of the plurality of arc plates (55) are respectively fixedly connected to the plurality of rotating ends; The lower mold (4) is provided with a moving mechanism (7), the two half molds (5) are respectively connected to the two ends of the moving mechanism (7), a lifting ring mechanism (8) is arranged at the center of the lower mold (4), and the plurality of arc plates (55) are movably matched with the movable ends of the lifting ring mechanism (8); When the arc plate (55) is movably connected to the movable groove (54), the threaded half cavity (51), the plurality of arc plates (55), the truncated cone half cavity (52), the lower mold (4) and the movable end of the lifting ring mechanism (8) form a truncated cone-shaped toothpaste skin blowing half cavity; when the arc plate (55) is movably connected to the movable end of the lifting ring mechanism (8), the threaded half cavity (51), the plurality of arc plates (55) and the lifting ring mechanism (8) form a cylindrical toothpaste skin blowing half cavity; The installation groove (53) comprises a semi-annular groove A (531), the semi-annular groove A (531) is provided in the half mold (5) at a position relative to the top of the truncated cone half cavity (52), a semi-annular groove B (532) is provided at the top of the semi-annular groove A (531), a plurality of rotation grooves (533) are provided on the semi-annular groove A (531) at positions relative to the plurality of arc plates (55), a circular groove A (534) is provided at a gap position between two of the rotation grooves (533) on one of the installation grooves (53), the circular groove A (534) is connected to the semi-annular groove A (531), a circular groove B (535) is provided above the circular groove A (534), and the circular groove B (535) is provided at the top of the half mold (5); The rotating mechanism (6) comprises an arc block A (65), an arc block B (66) and a plurality of rotating blocks (61), the plurality of rotating blocks (61) being rotatably disposed on the plurality of rotating grooves (533), the radius of the rotating block (61) gradually increasing from the middle to both sides, the rotating grooves (533) being adapted in shape to the rotating block (61), the rotating block (61) being fixedly connected to the arc plate (55), the rotating block (61) being provided with a through hole (62), the through hole (62) being fixedly provided with a rotating ring (61) 3), a rotating guide groove (64) is provided on the inner edge surface of the rotating ring (63), the arc block A (65) and the arc block B (66) are in contact and matched, the arc block A (65) and the arc block B (66) are connected to form a semicircular ring, the semicircular ring is rotatably arranged on the semicircular groove A (531), the top of the semicircular ring is in an arc-shaped structure with equal spacing and fixed with a guide block (68), the guide block (68) is movably matched with the semicircular groove B (532), and the guide block (68) is movably matched with the rotating guide groove (64); A tooth groove (67) is provided on the outer edge surface of the semicircular ring, a gear (671) is provided on the circular groove A (534), the gear (671) is meshed with the tooth groove (67), a rotating shaft (670) is fixedly provided at the top end of the gear (671), the top end of the rotating shaft (670) penetrates into the circular groove B (535) and is fixedly provided with an adjusting block (672), the adjusting block (672) is rotatably connected to the circular groove B (535), and an adjusting screw groove (673) is provided at the top end of the adjusting block (672); The rotating guide groove (64) comprises an arc-shaped groove (641), and both ends of the arc-shaped groove (641) are provided with partial thread guide grooves (642); The gap distance between two adjacent guide blocks (68) is smaller than the vertical distance between the two partially threaded guide grooves (642) and one end thereof, and the gap distance between two adjacent guide blocks (68) is larger than the vertical distance between the arc groove (641) and the partially threaded guide groove (642) and one end thereof.

2. The toothpaste tube blow molding device according to claim 1, characterized in that: The semi-annular groove A (531) is provided with a plurality of ball-engaging grooves (536) in an arc-shaped structure with equal spacing, and the ball-engaging grooves (536) are located below the circular groove A (534).

3. The toothpaste skin blow molding device according to claim 2, characterized in that: At least one columnar groove (601) is provided at the bottom end of the outer edge surface of the arc block A (65) and the arc block B (66); a movable column (602) is movably connected to the columnar groove (601); the movable column (602) is elastically connected to the columnar groove (601) via a spring (603); a snap-fit ​​ball block (604) is fixedly provided on the movable column (602); the snap-fit ​​ball block (604) is snap-fitted with the snap-fit ​​ball groove (536).

4. The toothpaste skin blow molding device according to claim 3, characterized in that: Both ends of the lower mold (4) are provided with movable slots (41), the bottom of the movable slot (41) is provided with a slide slot (42), a circular cavity (43) is provided at the center of the top end of the lower mold (4), a rotating column slot (44) is provided at the bottom end of the circular cavity (43), a plurality of vertical slots (45) are provided on the surface of the circular cavity (43) in an annular structure with equal spacing, and a mounting cavity (46) is provided at the bottom end of the rotating column slot (44).

5. The toothpaste skin blow molding device according to claim 4, characterized in that: The opposing moving mechanism (7) comprises an opposing screw rod (73), a motor A (74) and two groups of sliders (71). The two groups of sliders (71) are respectively slidably arranged on the two slide grooves (42). Each group of sliders (71) comprises two sliders arranged in a symmetrical structure. A connecting column (72) is fixedly arranged at the top end of the slider (71). The top end of the connecting column (72) passes through the movable empty groove (41) and is fixedly connected to the bottom end of the half mold (5). The opposing screw rod (73) is rotatably arranged on one of the slide grooves (42). The corresponding two sliders (71) are both threadedly connected to the opposing screw rod (73). The motor A (74) is fixedly arranged on one side of the lower mold (4) relative to the opposing screw rod (73). The opposing screw rod (73) passes through the lower mold (4) at one end close to the motor A (74) and is fixedly connected to the output shaft of the motor A (74).

6. The toothpaste tube blow molding device according to claim 5, characterized in that: The lifting ring mechanism (8) comprises a motor B (81) and a guide column (82), wherein the motor B (81) is fixedly mounted on the mounting cavity (46), and the guide column (82) is rotatably mounted on the rotating column groove (44). A connecting shaft (80) is fixedly mounted on the bottom end of the guide column (82), and the bottom end of the connecting shaft (80) penetrates into the mounting cavity (46) and is fixedly connected to the output shaft of the motor B (81). The surface of the guide column (82) is an annular structure with equal spacing and is provided with a plurality of lifting and lowering grooves. A guide groove (83), a guide ball block (84) is movably connected to the lifting guide groove (83), a functional ring (85) is sleeved on the rotating column groove (44), the functional ring (85) is movably connected to the circular cavity (43), the guide ball block (84) is fixedly connected to the bottom end of the inner edge surface of the functional ring (85), and the outer edge surface of the functional ring (85) is annularly and evenly spaced and fixedly provided with a plurality of limit blocks (86), and the limit blocks (86) are slidably connected to the vertical groove (45).

7. The toothpaste tube blow molding device according to claim 6, characterized in that: The lifting guide groove (83) comprises a partial thread groove (831), and both ends of the partial thread groove (831) are connected to each other and provided with a limiting arc groove (832).

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