Tire mold capable of avoiding glue overflow

Abstract

The invention discloses a tire mold capable of avoiding glue overflow, and relates to the technical field of tire molds, the tire mold comprises a lower mold and an upper mold clamped on the lower mold, a sealing ring is arranged between the upper mold and the lower mold, and guide rods are uniformly and annularly arranged on the outer side of the lower mold; guide sleeves which are slidably connected to the guide rods in a sleeving mode are evenly and annularly arranged on the outer side of the upper die, a base is arranged at the bottom of the lower die, and an electric telescopic rod is annularly arranged at the top of the base. An electric telescopic rod drives a fixing ring to ascend and descend so as to drive a rotating pressing assembly to ascend and descend, the pressing assembly makes contact with the top of a guide sleeve, an upper mold and a lower mold can be fully fixed together, rapid mold closing is achieved, the situation of leakage during glue injection is avoided, when mold splitting is needed, the pressing assembly is made to leave the guide sleeve and then rotate, and the mold splitting efficiency is improved. Therefore, the upper part of the guide sleeve of the upper die is not hindered, and the effect of quickly taking out the upper die is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tire moulds, in particular to a tire mould for preventing glue overflow. Background Art

[0002] Tires are circular elastic rubber products that roll on the ground and are assembled on various vehicles or machinery. Tire molds are key tools used to manufacture tires. They determine the shape, pattern, size and other important features of the tires. These molds are usually made of high-strength alloy steel or other special materials to withstand high pressure and high temperature working environments. Tire molds are usually divided into two parts: upper mold and lower mold, which work together during the production process.

[0003] During the process of molding the tire by the tire mold, the pressure in the mold will cause the rubber to enter the gap between the contact surfaces of the upper mold plate and the lower mold plate, thereby forming overflowing glue, affecting the processing technology of the tire and making it inconvenient to perform convenient sealing protection. For this reason, the authorization publication number CN222061057U discloses a tire mold for avoiding overflowing glue, which includes a lower mold, a first connecting plate fixedly connected to the lower mold, an upper mold arranged on the lower mold, a second connecting plate fixedly connected to the upper mold, a first sealing gasket fixedly connected to the lower mold and the upper mold, a bolt arranged on the second connecting plate, and a nut threadedly connected to the bolt; the technical solution engages the convex part of the upper mold in the groove part on the inner side of the lower mold, and the lower mold and the upper mold are spliced ​​and engaged, and at the same time, the first sealing gasket can be used to achieve a full sealing effect, and when fixing and limiting, the bolt can be inserted into the second connecting plate and the first connecting plate, and then the nut is rotated on the bolt, and the lower mold on the first connecting plate and the upper mold on the second connecting plate are fully installed and fixed to avoid leakage during glue injection.

[0004] However, the applicant found that this technical solution requires the evenly distributed bolts and nuts to be disassembled and assembled in sequence during mold closing and mold separation, which makes mold closing and mold separation too troublesome and reduces the production efficiency of the tire mold. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a tire mold that avoids glue overflow, thereby solving the problems existing in the prior art.

[0006] To achieve the above purpose, the present invention is implemented by the following technical scheme: a tire mold for avoiding glue overflow, comprising a lower mold and an upper mold clamped on the lower mold, and a sealing ring is arranged between the upper mold and the lower mold, the outer side of the lower mold is uniformly circumferentially provided with guide rods, and the outer side of the upper mold is uniformly circumferentially provided with guide sleeves respectively slidably sleeved on the guide rods, the bottom of the lower mold is provided with a base, and the top of the base is circumferentially provided with an electric telescopic rod;

[0007] The top of the output end of the electric telescopic rod is connected to a fixing ring, and a clamping assembly in contact with the top of the guide sleeve is rotatably connected to the fixing ring.

[0008] Preferably, the clamping assembly comprises a rotating ring, and a pressing block is arranged on the inner wall of the rotating ring, and the bottom of each pressing block is in contact with the top of each guide sleeve respectively.

[0009] Preferably, arc-shaped grooves are evenly formed on the top of the fixed ring, and sliding blocks are slidably connected in the arc-shaped grooves, and the tops of the sliding blocks are connected to the rotating ring.

[0010] Preferably, a stopper is provided on the inner wall of the fixing ring, the front side of the left end pressure block is in contact with the stopper, and an adsorption component is provided on the stopper.

[0011] Preferably, a positioning rod is integrally formed at the bottom of the pressing block, a wrapping assembly in contact with the positioning rod is provided on the guide sleeve, a telescopic assembly is provided at the bottom of the positioning rod, and a slot assembly cooperating with the telescopic assembly is evenly provided on the top of the base.

[0012] Preferably, the wrapping assembly includes a through slot opened on the guide sleeve, the bottom of the positioning rod passes through the through slot, both ends of the guide sleeve are threadedly connected with a screw extending into the through slot, and a swivel is provided at one end of the screw located on the outside of the through slot, and the end of the screw located on the inside of the through slot is connected to a slide plate slidably connected to the through slot through a bearing, a wrapping pad in contact with the positioning rod is provided on the slide plate, and an arc-shaped transition portion is provided on the top of the wrapping pad.

[0013] Preferably, the telescopic assembly includes a slider slidably connected to the bottom of the positioning rod, a spring connected to the positioning rod is arranged on the top of the slider, a ball is movably connected to the bottom of the slider, and the diameters of the slider and the ball are both smaller than the diameter of the positioning rod.

[0014] Preferably, the trough body assembly includes a support rod arranged on a base, an arc-shaped trough body is arranged on the top of the support rod, a groove portion is arranged in the middle of the trough body, arc surface portions are arranged at both ends of the trough body, and an inclined surface portion is connected between the arc surface portion and the groove portion.

[0015] Preferably, the adsorption assembly includes a mounting rod arranged on the base, a fixing cylinder is arranged on the mounting rod, a hose is connected to the top of the fixing cylinder, a hole is opened on the block opposite to the left end pressure block, and the hose is connected to the hole, the inner wall of the fixing cylinder is fitted and connected to one end of the piston rod, and the other end of the piston rod passes through the bottom of the fixing cylinder and is connected to the block.

[0016] Beneficial Effects

[0017] The present invention provides a tire mold that avoids glue overflow. Compared with the prior art, it has the following beneficial effects:

[0018] 1. The tire mold for avoiding glue overflow drives the fixing ring to rise and fall through the electric telescopic rod, so as to drive the rotating clamping assembly to rise and fall. The clamping assembly contacts the top of the guide sleeve, so that the upper mold and the lower mold can be fully fixed together, and rapid mold closing is achieved to avoid leakage during glue injection. When mold separation is required, the clamping assembly is rotated after leaving the guide sleeve, so that there is no obstruction above the guide sleeve of the upper mold, thereby having the effect of quickly removing the upper mold. Compared with the existing technology that requires the evenly distributed bolts and nuts to be disassembled and assembled in sequence during mold closing and mold separation, mold closing and mold separation are more convenient, thereby improving the production efficiency of the tire mold.

[0019] 2. The tire mold for avoiding glue overflow can position the positioning rod by setting a positioning rod and a wrapping assembly, so that the pressure block cannot rotate, thereby ensuring the pressing effect of the pressure block on the guide sleeve, thereby improving the stability during mold closing; when the wrapping pad on the wrapping assembly gradually wears out, the wrapping ability of the positioning rod can also be ensured by screw extrusion, so that the pressure block cannot rotate on the guide sleeve, thereby avoiding wear between the pressure block and the guide sleeve; by setting a telescopic assembly and a slot assembly, it is convenient to position the removed block to avoid accidentally blocking the guide sleeve from moving downward during mold closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the fixing ring, arc groove and stopper of the present invention;

[0023] Figure 4 is a schematic diagram of a wrapping assembly of the present invention;

[0024] Figure 5 is a schematic diagram of a telescopic assembly of the present invention;

[0025] Figure 6 is a schematic diagram of a tank assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of the adsorption component of the present invention.

[0027] In the figure: 1. lower mold; 2. upper mold; 3. sealing ring; 4. base; 5. guide rod; 6. guide sleeve; 7. electric telescopic rod; 8. fixing ring; 9. swivel; 10. pressure block; 11. arc groove; 12. stopper; 13. positioning rod; 14. through groove; 15. screw rod; 16. slide plate; 17. wrapping pad; 18. arc transition part; 19. spring; 20. slider; 21. ball bearing; 22. support rod; 23. trough body; 24. groove part; 25. inclined part; 26. arc part; 27. mounting rod; 28. fixing cylinder; 29. ​​hose; 30. piston rod; 31. channel. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 7 , the present invention provides the following three technical solutions:

[0030] The first embodiment: a tire mold for avoiding glue overflow, comprising a lower mold 1 and an upper mold 2 clamped on the lower mold 1, and a sealing ring 3 is arranged between the upper mold 2 and the lower mold 1, so as to achieve a fully sealed effect when clamped, the outer side of the lower mold 1 is uniformly circumferentially provided with guide rods 5, and the outer side of the upper mold 2 is uniformly circumferentially provided with guide sleeves 6 respectively slidably sleeved on each guide rod 5, which can guide the closing and parting of the upper mold 2, and the upper mold 2 is provided with a feeding channel, the bottom of the lower mold 1 is provided with a base 4, the base 4 is provided with screw holes, and the base 4 can be installed at a required position, and the top of the base 4 is circumferentially provided with an electric telescopic rod 7, and the electric telescopic rod 7 is powered and controlled by the existing technology;

[0031] The top of the output end of the electric telescopic rod 7 is connected to the fixed ring 8, and the fixed ring 8 is rotatably connected with a clamping component in contact with the top of the guide sleeve 6. When closing the mold, the clamping component is rotated so that when the upper mold 2 moves downward, the guide sleeve 6 is not hindered by the clamping component. After the upper mold is engaged, the clamping component can be aligned with the guide sleeve 6, and then the fixed ring 8 is driven downward by the electric telescopic rod 7. The clamping component contacts the top of the guide sleeve 6, so that the upper mold 2 and the lower mold 1 can be fully fixed together, and rapid mold closing is achieved to avoid leakage during glue injection. When parting the mold, the clamping component is moved upward away from the guide sleeve 6 and then rotated, so that there is no obstruction above the guide sleeve 6 of the upper mold 2, thereby achieving the effect of quickly removing the upper mold.

[0032] The clamping assembly includes a rotating ring 9, on the inner wall of which are provided with a pressure block 10, the bottom of each pressure block 10 contacts the top of each guide sleeve 6 respectively, and the rotating ring 9 drives each pressure block 10 to rotate synchronously, and the guide sleeve 6 is clamped by the pressure block 10.

[0033] The swivel 9 does not need to rotate over a long distance, so arc grooves 11 are evenly opened on the top of the fixed ring 8. Slide blocks are slidably connected in the arc grooves 11, and the tops of the slide blocks are connected to the swivel 9. The slide blocks are driven to rotate on the arc grooves 11 by the swivel 9 to complete the rotation action and save costs.

[0034] In order to position the rotation amplitude of the swivel ring 9, a stopper 12 is provided on the inner wall of the fixed ring 8, and the front side of the left end pressure block 10 contacts the stopper 12. At this time, the pressure block 10 is just located at the top of the guide sleeve 6, and an adsorption component is provided on the stopper 12.

[0035] When the pressing block 10 presses the guide sleeve 6, it is still possible to rotate on the guide sleeve 6. In order to ensure that the pressing block 10 presses the guide sleeve 6, a positioning rod 13 is integrally formed at the bottom of the pressing block 10, and a wrapping component in contact with the positioning rod 13 is provided on the guide sleeve 6. When the positioning rod 13 cannot rotate, the pressing block 10 can be prevented from rotating away from the top of the guide sleeve 6. A telescopic component is provided at the bottom of the positioning rod 13, and a groove body component matching the telescopic component is evenly provided on the top of the base 4.

[0036] The second embodiment is mainly different from the first embodiment in that: the wrapping component includes a through slot 14 opened on the guide sleeve 6, the bottom of the positioning rod 13 passes through the through slot 14, both ends of the guide sleeve 6 are threadedly connected with a screw 15 extending into the through slot 14, and the end of the screw 15 located on the outside of the through slot 14 is provided with a swivel, and the end of the screw 15 located on the inside of the through slot 14 is connected to a slide plate 16 slidably connected to the through slot 14 through a bearing, and a wrapping pad 17 in contact with the positioning rod 13 is provided on the slide plate 16, and an arc-shaped transition portion 18 is provided on the top of the wrapping pad 17.

[0037] In this embodiment, the wrapping pads 17 on both sides only wrap the positioning rod 13, and do not clamp the positioning rod 13, so the lifting and lowering of the positioning rod 13 is not affected. By wrapping the positioning rod 13, the positioning rod 13 and the pressure block 10 can be prevented from rotating. In order to facilitate the positioning rod 13 to enter between the wrapping pads 17 on both sides, an arc-shaped transition portion 18 is provided on the top of the wrapping pad 17.

[0038] With the long-term use of the positioning rod 13, the opposite sides of the wrapping pads 17 on both sides will be worn. Therefore, by rotating the rotating head, the screw 15 can drive the slide plate 16 to move on the through groove 14, thereby driving the wrapping pad 17 to move and maintain contact with the positioning rod 13, thereby maintaining the positioning of the positioning rod 13, thereby avoiding wear between the pressure block 10 and the guide sleeve 6.

[0039] Among them, the telescopic component includes a slider 20 slidably connected to the bottom of the positioning rod 13, a spring 19 connected to the positioning rod 13 is arranged on the top of the slider 20, and a ball 21 is movably connected to the bottom of the slider 20. The diameters of the slider 20 and the ball 21 are both smaller than the diameter of the positioning rod 13, so that the slider 20 and the ball 21 are not hindered by the wrapping pads 17 on both sides when moving downward.

[0040] The trough assembly includes a support rod 22 arranged on the base 4, an arc-shaped trough body 23 is arranged on the top of the support rod 22, a groove portion 24 is arranged in the middle of the trough body 23, arc surface portions 26 are arranged at both ends of the trough body 23, and an inclined surface portion 25 is connected between the arc surface portion 26 and the groove portion 24 to facilitate the passage of the ball 21.

[0041] The third embodiment is mainly different from the second embodiment in that: the adsorption component includes a mounting rod 27 arranged on the base 4, a fixing cylinder 28 is arranged on the mounting rod 27, a hose 29 is connected to the top of the fixing cylinder 28, a channel 31 opposite to the left end pressure block 10 is opened on the block 12, and the hose 29 is connected to the channel 31, the inner wall of the fixing cylinder 28 is fitted and connected to one end of the piston rod 30, and the other end of the piston rod 30 passes through the bottom of the fixing cylinder 28 and is connected to the block 12.

[0042] When the fixed ring 8 drives the block 12 to move upward, the piston rod 30 moves upward to squeeze the air inside the fixed cylinder 28, and then the hose 29 is exhausted into the channel 31, which can apply thrust to the left end pressure block 10. After the mold is closed, the swivel 9 first drives the left end pressure block 10 to fit on the block 12 to cover the channel 31, and then the fixed ring 8 is moved downward. At this time, the piston rod 30 follows the block 12 to suck the air in the fixed cylinder 28 downward, and the left end pressure block 10 can be adsorbed and fixed on the block 12 through the hose 29 and the channel 31. Therefore, when the fixed ring 8 is moved downward, there is no need to hold the swivel 9 with hands all the time, and the positioning rod 13 can be inserted between the wrapping pads 17 on both sides.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0044] During use, when the mold is closed, the swivel 9 is rotated so that when the upper mold 2 moves downward, the guide sleeve 6 is not hindered by the pressure block 10. By rotating the swivel 9, the pressure block 10 drives the ball 21 on the positioning rod 13 to roll along the arc surface 26 and the inclined surface 25 into the groove portion 24. The ball 21 is pressed into the groove portion 24 by the spring 19, so that the ball 21 can be limited to a certain range by the inclined surface 25, so that the swivel 9 can be difficult to rotate easily, so that there is no need to hold the swivel 9 with hands all the time when the mold is closed. After the upper mold 2 is engaged with the lower mold 1, the ball 21 can be made to leave the groove body assembly, so that the pressure block 10 is aligned with the guide sleeve 6. At this time, the left end pressure block 10 is pressed against the stopper 12, and then the electric telescopic rod 7 drives the fixed The fixed ring 8 moves downward, and the upper mold 2 and the lower mold 1 can be fully fixed together by the pressure block 10 contacting the top of the guide sleeve 6. When the fixed ring 8 moves downward, the piston rod 30 sucks the air in the fixed cylinder 28, so that the left end pressure block 10 can be adsorbed and fixed on the stop block 12, so that when the fixed ring 8 is moved downward, there is no need to hold the swivel 9 with hands all the time. When the mold is separated, the pressure block 10 is allowed to leave the guide sleeve 6 upward and then rotated through the swivel 9, so that there is no obstacle above the guide sleeve 6 of the upper mold 2, thereby having the effect of quickly removing the upper mold. When pressing, the positioning rod 13 is positioned by the wrapping assembly on the guide sleeve 6, so that the pressure block 10 can be positioned, so that the pressure block 10 cannot rotate away from the top of the guide sleeve 6 to maintain stability during mold closing.

[0045] 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.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tire mold for preventing glue overflow, characterized in that: The invention comprises a lower die (1) and an upper die (2) engaged with the lower die (1), a sealing ring (3) being arranged between the upper die (2) and the lower die (1), guide rods (5) being uniformly arranged in an annular direction on the outer side of the lower die (1), and guide sleeves (6) being uniformly arranged in an annular direction on the outer side of the upper die (2) and being respectively slidably sleeved on the guide rods (5), a base (4) being arranged at the bottom of the lower die (1), and an electric telescopic rod (7) being arranged in an annular direction on the top of the base (4); The top of the output end of the electric telescopic rod (7) is connected to a fixing ring (8), and a clamping component in contact with the top of the guide sleeve (6) is rotatably connected to the fixing ring (8).

2. A tire mold for preventing glue overflow according to claim 1, characterized in that: The clamping assembly comprises a rotating ring (9), and a pressing block (10) is arranged on the inner wall of the rotating ring (9), and the bottom of each pressing block (10) is in contact with the top of each guide sleeve (6).

3. A tire mold for preventing glue overflow according to claim 2, characterized in that: The top of the fixed ring (8) is evenly provided with arc grooves (11), and sliding blocks are slidably connected in the arc grooves (11), and the tops of the sliding blocks are connected to the rotating ring (9).

4. A tire mold for preventing glue overflow according to claim 2, characterized in that: A stopper (12) is provided on the inner wall of the fixing ring (8), the front side of the left end pressing block (10) is in contact with the stopper (12), and an adsorption component is provided on the stopper (12).

5. A tire mold for preventing glue overflow according to claim 2, characterized in that: A positioning rod (13) is integrally formed at the bottom of the pressing block (10), a wrapping component in contact with the positioning rod (13) is arranged on the guide sleeve (6), a telescopic component is arranged at the bottom of the positioning rod (13), and a slot body component cooperating with the telescopic component is evenly arranged on the top of the base (4).

6. A tire mold for preventing glue overflow according to claim 5, characterized in that: The wrapping assembly includes a through slot (14) formed on the guide sleeve (6), the bottom of the positioning rod (13) passes through the through slot (14), both ends of the guide sleeve (6) are threadedly connected with a screw (15) extending into the through slot (14), and a swivel is provided at one end of the screw (15) located outside the through slot (14), and the end of the screw (15) located inside the through slot (14) is connected to a slide plate (16) slidably connected to the through slot (14) through a bearing, and a wrapping pad (17) in contact with the positioning rod (13) is provided on the slide plate (16), and an arc-shaped transition portion (18) is provided on the top of the wrapping pad (17).

7. A tire mold for preventing glue overflow according to claim 5, characterized in that: The telescopic assembly comprises a slider (20) slidably connected to the bottom of the positioning rod (13); a spring (19) connected to the positioning rod (13) is arranged on the top of the slider (20); a ball (21) is movably connected to the bottom of the slider (20); and the diameters of the slider (20) and the ball (21) are both smaller than the diameter of the positioning rod (13).

8. The tire mold for preventing glue overflow according to claim 5, characterized in that: The trough body assembly comprises a support rod (22) arranged on a base (4); an arc-shaped trough body (23) is arranged at the top of the support rod (22); a groove portion (24) is arranged in the middle of the trough body (23); arc surface portions (26) are arranged at both ends of the trough body (23); and an inclined surface portion (25) is connected between the arc surface portion (26) and the groove portion (24).

9. A tire mold for preventing glue overflow according to claim 4, characterized in that: The adsorption assembly comprises a mounting rod (27) arranged on a base (4), a fixing cylinder (28) being arranged on the mounting rod (27), a hose (29) being connected to the top of the fixing cylinder (28), a hole (31) being provided on the stopper (12) and being opposite to the left end pressure block (10), and the hose (29) being connected to the hole (31), an inner wall of the fixing cylinder (28) being fittedly connected to one end of a piston rod (30), and the other end of the piston rod (30) passing through the bottom of the fixing cylinder (28) and being connected to the stopper (12).

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