A production equipment and production process for automobile headrest

Abstract

The invention relates to the technical field of automobile headrest frame injection molds, specifically to a production device and a production process for automobile headrests, wherein the production device for automobile headrests comprises a base and an upper mold, the top of the base is fixedly connected to a lower mold, the four corners of the lower mold are fixedly connected to a connecting rod one, the bottom end of the connecting rod one is fixedly connected to the top of the base, and the inside of the connecting rod one is slidably connected to an inner rod; the beneficial effect is: by designing the guide column with inner and outer rods, when closing the mold, lubricating oil can be automatically and evenly injected into the gap thereof, thereby greatly reducing the friction at the connection of the guide column, thereby not only prolonging the service life of the mold, but also making the guiding accuracy higher, thereby making the processed product quality higher, and when the two molds are separated, the excess lubricating oil can be recovered, making the use economy higher.

Description

Technical Field

[0001] The invention relates to the technical field of injection moulds for automobile headrest frames, in particular to production equipment and a production process for automobile headrests. Background Art

[0002] A car headrest is generally composed of a frame, an outer skin, a filler, etc. It can be used as an important component of the car interior to protect the driver's head. Traditional car headrest frames are generally made using an injection molding process, that is, an injection mold is used to use plastic as a raw material to form the car headrest frame.

[0003] The injection mold in the prior art generally consists of an upper mold, a lower mold, a base, a guide column and other structures. When in use, the upper mold and the lower mold are closed, and then plastic is injected into the mold, thereby cooling and forming.

[0004] However, after a long period of mold closing, the guide pins will wear due to friction, which will not only reduce the service life of the mold, but also reduce the guiding accuracy, thereby reducing the quality of the processed products. Therefore, technical personnel in this field now propose a production equipment and production process for automobile headrests to solve the above-mentioned problems of reducing the service life of the mold due to guide pin wear, affecting the guiding accuracy and reducing product quality. Summary of the invention

[0005] The purpose of the present invention is to provide a production device and a production process for an automobile headrest to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a production equipment for automobile headrests, comprising a base and an upper mold, the top of the base is fixedly connected to the lower mold, the four corners of the lower mold are fixedly connected to a connecting rod 1, the bottom end of the connecting rod 1 is fixedly connected to the top of the base, the interior of the connecting rod 1 is slidably connected to an inner rod, the outer lower side of the inner rod is fixedly connected to a blocking block, the top of the inner rod is fixedly connected to a connecting rod 2, the top of the connecting rod 2 is fixedly connected to the bottom end of the upper mold, the front and rear sides of the base are provided with oil storage tanks, the upper side of the oil storage tank is fixedly connected to an oil pump, the output end of the oil pump is fixedly connected to a connecting pipe, the top of the connecting pipe is fixedly connected to a plug, the plug passes through the connecting rod 1 and is inserted into the interior of the inner rod, the upper side of the outer side of the plug is sleeved with a sealing ring, the top of the connecting rod 1 is provided with a mounting groove, the outer side of the plug is provided with a plurality of sealing grooves, the side of the sealing ring close to the plug is fixedly connected to a plurality of convex rings, the inside of the sealing ring is provided with a plurality of A placement groove, a push piece is slidably connected inside the placement groove, and a sloped block is fixedly connected to the side of the push piece away from the convex ring. A plurality of slide grooves are opened on the inner upper side of the inner rod, and a plurality of oil leakage grooves are opened on the lower side of the inner wall of the installation groove. A sponge block is placed on the lower side of the inner part of the installation groove, and a filter screen is arranged on the upper side of the sponge block. The filter screen is slidably connected to the inside of the installation groove, and a pick-up groove is opened on the inner side of the filter screen. A plurality of limiting grooves are opened on the inner lower side of the inner rod, and the limiting grooves are connected to the slide grooves. An inclined block 2 is slidably connected inside, and the bottom end of the inclined block 2 is fixedly connected to a placement rod. A rubber block is sleeved on the outside of the placement rod, and the bottom end of the placement rod is fixedly connected to a push rod. A plurality of oil inlet grooves are provided inside the inner rod, and the outside of the blocking block fits the inner wall of the connecting rod 1. The outer side of the bottom end of the connecting rod 2 is a protrusion design, and the inner side height of the mounting groove is lower than the outer side height. One end of the rubber block is fixedly connected to the top end of the push rod, and the other end of the rubber block is fixedly connected to the upper side of the inner wall of the limiting groove.

[0007] Preferably, the outside of the inclined block 1 is slidably connected to the inside of the slide groove, the side of the inclined block 1 away from the push piece is an inclined surface, the sealing groove matches the convex ring, and the sealing groove fits the convex ring.

[0008] Preferably, a side of the inclined block 2 close to the inclined block 1 is an inclined surface, and the inclined surface of the inclined block 2 is opposite to that of the inclined block 1.

[0009] Preferably, the outer upper side of the placement rod is slidably connected to the inside of the slide groove, the outer lower side of the placement rod is slidably connected to the inside of the limiting groove, the outer side of the push rod is slidably connected to the inside of the limiting groove, and the bottom end of the push rod is fitted with the lower side of the inner wall of the connecting rod.

[0010] A production process for a production device for an automobile headrest, the process comprising the following steps:

[0011] After the lower mold and the upper mold are closed, the oil pump is started to inject lubricating oil into the inner rod, and the lubricating oil flows through the oil inlet groove to the gap between the inner rod and the connecting rod 1 to lubricate the sliding of the inner rod;

[0012] When the inner rod slides into the interior of the connecting rod 1, the push rod can push the inclined block 2 to move, so that the inclined block 2 can push the push piece through the inclined block 1 to squeeze the placement groove to produce deformation, so that the placement groove can fit tightly with the plug, so that the connection between the connecting rod 1 and the plug will not leak oil, and the service life of the placement groove is increased;

[0013] When the inner rod slides out from the inside of the connecting rod 1, the blocking block can scrape out the excess lubricating oil between the connecting rod 1 and the inner rod, and when the water level of the lubricating oil is higher than the height of the inner side of the installation groove, the lubricating oil can be filtered through the filter and collected by the sponge block for secondary use;

[0014] When the inner rod slides into the connecting rod one again, and the outer side of the bottom end of the connecting rod two fits with the top end of the inner rod, the outer protrusion of the connecting rod two can squeeze the filter to move downward, so that the filter can squeeze the sponge block, and then the lubricating oil inside the sponge block can flow into the gap between the connecting rod one and the inner rod again through the oil leakage groove, thereby realizing the secondary utilization of the lubricating oil.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention proposes a production device and a production process for automobile headrests. By designing the guide pillars with inner and outer rods, lubricating oil can be automatically and evenly injected into the gaps thereof when the molds are closed, thereby greatly reducing the friction at the connection of the guide pillars, and prolonging the service life of the guide pillars. This not only prolongs the service life of the molds, but also increases the guiding accuracy, thereby increasing the quality of the processed products. When the two molds are separated, the excess lubricating oil can be recovered, thereby increasing the economic efficiency of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the present invention;

[0018] Figure 2 A top view of the present invention;

[0019] Figure 3 For the present invention Figure 2 Structural cross-section at AA in the middle;

[0020] Figure 4 This is a structural schematic diagram of a connecting rod of the present invention;

[0021] Figure 5 A top view of the base of the present invention;

[0022] Figure 6 For the present invention Figure 5 Structural cross-section at the middle BB;

[0023] Figure 7 For the present invention Figure 6 A magnified view of the structure at center;

[0024] Figure 8 For the present invention Figure 6 A magnified view of the structure at B in the middle;

[0025] Fig. 9 For the present invention Figure 6 A magnified view of the structure at C in the middle;

[0026] Fig.10 A top view of the connecting rod of the present invention;

[0027] Fig.11 For the present invention Fig.10 Structural cross-section at CC.

[0028] In the figure: 1. base; 2. oil storage tank; 3. oil pump; 4. connecting pipe; 5. plug; 6. connecting rod 1; 7. inner rod; 8. connecting rod 2; 9. upper mold; 10. sealing groove; 11. sealing ring; 12. convex ring; 13. placement groove; 14. push piece; 15. inclined block 1; 16. slide groove; 17. inclined block 2; 18. placement rod; 19. rubber block; 20. push rod; 21. limit groove; 22. installation groove; 23. oil leakage groove; 24. sponge block; 25. filter screen; 26. pick-up groove; 27. oil inlet groove; 28. lower mold; 29. ​​blocking block. DETAILED DESCRIPTION

[0029] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0030] Example 1: Please refer to Figure 1-Figure 11The present invention provides a technical solution: a production device for automobile headrests, comprising a base 1 and an upper mold 9, the top of the base 1 is fixedly connected with a lower mold 28, the base 1, the upper mold 9 and the lower mold 28 together constitute the main part of the injection mold, the four corners of the lower mold 28 are fixedly connected with connecting rods 6, the bottom end of the connecting rod 6 is fixedly connected to the top of the base 1, so that the lower mold 28 and the base 1 and the connecting rod 6 are installed more stably, the inner part of the connecting rod 6 is slidably connected with an inner rod 7, the connecting rod 6 plays a limiting role on the inner rod 7, and cooperates with the lower mold 2 8 is used with the upper mold 9 so that it will not deviate when the mold is closed. A plurality of oil inlet grooves 27 are opened inside the inner rod 7. The oil inlet grooves 27 are used to inject lubricating oil between the connecting rod 6 and the inner rod 7, and the lubricating oil is evenly distributed. A blocking block 29 is fixedly connected to the lower side of the outer side of the inner rod 7. The outer side of the blocking block 29 is in contact with the inner wall of the connecting rod 6. The blocking block 29 is used to block the lower side of the inner rod 7 so that the lubricating oil will not leak from the lower side of the inner rod 7. When the inner rod 7 moves upward, the blocking block 29 can scrape out the excess lubricating oil between the connecting rod 6 and the inner rod 7. The top of the inner rod 7 is fixedly connected with a connecting rod 2 8, and the outer side of the bottom end of the connecting rod 2 8 is designed as a protrusion, so that the outer side of the bottom end of the connecting rod 2 8 can enter the upper side of the connecting rod 1 6. The top of the connecting rod 2 8 is fixedly connected to the bottom end of the upper mold 9. The front and rear sides of the base 1 are provided with oil storage tanks 2. The oil storage tank 2 is used to store lubricating oil. A refueling port is provided on the outside, so that it is more convenient to add lubricating oil. The upper side of the oil storage tank 2 is fixedly connected with an oil pump 3. The oil pump 3 is installed inside the base 1, and its input end is inserted into the lower side of the oil storage tank 2 to fill the oil inside the oil storage tank 2. The lubricating oil is extracted, and the output end of the oil pump 3 is fixedly connected with a connecting pipe 4, and the top of the connecting pipe 4 is fixedly connected with a plug 5. The connecting pipe 4 is used to connect the oil storage tank 2 and the plug 5. The plug 5 passes through the connecting rod 6 and is inserted into the inside of the inner rod 7, so that the lubricating oil can be injected into the inside of the inner rod 7. A sealing ring 11 is sleeved on the upper side of the outside of the plug 5. The sealing ring 11 is used to maintain the plug-in stability of the plug 5. A mounting groove 22 is opened on the top of the connecting rod 6. The inner side height of the mounting groove 22 is lower than the outer side height. The mounting groove 22 is used to collect excess lubricating oil between the connecting rod 6 and the inner rod 7.

[0031] When the upper mold 9 is molded with the lower mold 28, the top end of the connecting rod 1 6 is fitted with the bottom end of the connecting rod 2 8, so that the inner rod 7 can enter the interior of the connecting rod 1 6, so that the plug 5 can be inserted into the bottom end of the inner rod 7, and then by starting the oil pump 3, the oil pump 3 can guide the lubricating oil in the oil storage tank 2 to the inside of the plug 5 through the connecting pipe 4, so that the lubricating oil can enter the inside of the oil inlet groove 27, so that the lubricating oil can flow into the inner rod 7 and the connecting rod 1 6 through the through hole of the oil inlet groove 27, so that the external lubricating oil of the inner rod 7 is coated more evenly, which can greatly reduce the guide column connection. The friction at the joint makes the service life of the guide column longer, which not only makes the service life of the mold longer, but also makes the guiding accuracy higher, so that the quality of the processed product is higher. At this time, the blocking block 29 is tightly fitted with the lower side of the inner wall of the connecting rod 6, so that the lubricating oil will not leak from the connection between the plug 5 and the connecting rod 6, and when the upper mold 9 is separated from the lower mold 28, the inner rod 7 can drive the blocking block 29 to move upward, and then can scrape the excess lubricating oil on the inner wall of the connecting rod 6 upward, so that the lubricating oil can enter the interior of the mounting groove 22, so that the excess lubricating oil can be recovered, making it more economical to use.

[0032] Embodiment 2: On the basis of embodiment 1, in order to achieve a more stable fit between the sealing ring 11 and the plug 5, a plurality of sealing grooves 10 are provided on the outside of the plug 5, and a plurality of convex rings 12 are fixedly connected to one side of the sealing ring 11 close to the plug 5. The sealing grooves 10 match the convex rings 12, and the sealing grooves 10 fit the convex rings 12, thereby increasing the friction between the sealing ring 11 and the plug 5, thereby preventing the plug 5 from shaking easily. A plurality of placement grooves 13 are provided inside the sealing ring 11 for placement. A push piece 14 is slidably connected inside the groove 13, and the placement groove 13 limits the push piece 14 so that the push piece 14 can slide smoothly. A side of the push piece 14 away from the convex ring 12 is fixedly connected to an inclined block 15, and the side of the inclined block 15 away from the push piece 14 is an inclined surface. A plurality of sliding grooves 16 are provided on the upper inner side of the inner rod 7, and the outer portion of the inclined block 15 is slidably connected to the inner portion of the sliding groove 16. The sliding groove 16 limits the inclined block 15 so that the inclined block 15 does not shake when moving.

[0033] When the friction between the sealing ring 11 and the plug 5 needs to be increased, the inclined block 15 is moved inside so that the inclined block 15 can push the push piece 14 to move inward, thereby making the push piece 14 squeeze the sealing ring 11 to deform, so that the convex ring 12 on the inside of the sealing ring 11 can fit tightly with the inside of the sealing groove 10, thereby making the plug 5 installed more stably.

[0034] Embodiment 3: On the basis of embodiment 2, in order to realize the close fit between the automatic control sealing ring 11 and the plug 5, a plurality of limit grooves 21 are provided on the inner lower side of the inner rod 7, and the limit grooves 21 are connected with the slide groove 16. The inside of the slide groove 16 is slidably connected with an inclined block 2 17, and the slide groove 16 limits the inclined block 2 17, so that the inclined block 2 17 will not deviate when moving. The side of the inclined block 2 17 close to the inclined block 1 15 is an inclined surface, and the inclined block 2 17 is opposite to the inclined surface of the inclined block 1 15, so that when the inclined block 2 17 moves upward, the inclined surfaces of the inclined block 2 17 and the inclined block 1 15 can slide against each other, thereby pushing the inclined block 15 to move inward, and the bottom end of the inclined block 2 17 is fixedly connected with a placement rod 18, and the outer upper side of the placement rod 18 is slidably connected to the sliding Inside the groove 16, the outer lower side of the placement rod 18 is slidably connected to the inside of the limiting groove 21. The slide groove 16 and the limiting groove 21 both limit the placement rod 18, so that the placement rod 18 will not deviate when moving. A rubber block 19 is sleeved on the outside of the placement rod 18, and the bottom end of the placement rod 18 is fixedly connected with a push rod 20. The outside of the push rod 20 is slidably connected to the inside of the limiting groove 21. The limiting groove 21 limits the push rod 20, so that the push rod 20 is more stable when moving. The bottom end of the push rod 20 fits with the lower side of the inner wall of the connecting rod 6, so that the push rod 20 can be pushed upward in the reverse direction. One end of the rubber block 19 is fixedly connected to the top of the push rod 20, and the other end of the rubber block 19 is fixedly connected to the upper side of the inner wall of the limiting groove 21.

[0035] When the upper mold 9 is molded with the lower mold 28, the inner rod 7 is able to slide into the interior of the connecting rod 1 6, and then when the push rod 20 is able to fit with the lower side of the inner wall of the connecting rod 1 6, the inner rod 7 continues to move downward. Under the interaction of forces, the push rod 20 can reversely squeeze the rubber block 19 to produce deformation, and push the placement rod 18 to move upward, so that the placement rod 18 can push the inclined block 2 17 to move upward, so that the inclined block 2 17 can push the sealing ring 11 to fit closely with the plug 5 through the inclined block 15 and the push piece 14, so that the plug 5 can be installed more stably. When the inner rod 7 is detached from the inside of the connecting rod 1 6, the rubber block 19 is no longer subjected to the upward force, so that the rubber block 19 can perform a reset movement, so that the rubber block 19 can push the push rod 20 to move downward, and the push rod 20 can drive the placement rod 18 to move downward, so that the placement rod 18 can drive the inclined block 2 17 to move downward, and then the inclined block 2 17 no longer squeezes the inclined block 1 15, so that the sealing ring 11 can be reset, so that the sealing ring 11 no longer applies an extrusion force to the plug 5, so that the plug 5 can be easily detached from the inside of the inner rod 7.

[0036] Embodiment 4: On the basis of embodiment 3, in order to realize the subsequent utilization of the recovered lubricating oil, a plurality of oil leakage grooves 23 are opened on the lower side of the inner wall of the mounting groove 22, and the oil leakage grooves 23 are connected to the interior of the connecting rod 6, so that the lubricating oil inside the mounting groove 22 can flow back into the interior of the connecting rod 6, and a sponge block 24 is placed on the lower side of the interior of the mounting groove 22, and the sponge block 24 is used to absorb the recovered lubricating oil, and a filter screen 25 is arranged on the upper side of the sponge block 24, and the filter screen 25 is used to filter the lubricating oil that is scratched out, so that the reused lubricating oil will not affect the normal sliding of the inner rod 7 and the connecting rod 6, so that the mold clamping accuracy is higher, and the filter screen 25 is slidably connected to the interior of the mounting groove 22, so that the filter screen 25 can be replaced, and a pick-up groove 26 is opened on the inner side of the filter screen 25, and the pick-up groove 26 is used to provide a disassembly space for the filter screen 25, so that the filter screen 25 can be conveniently taken out from the interior of the mounting groove 22.

[0037] When the inner rod 7 moves upward, the inner rod 7 is able to drive the blocking block 29 to move upward, so that the blocking block 29 can scrape the inner wall of the connecting rod 6, so that the excess lubricating oil and impurities between the connecting rod 6 and the inner rod 7 can be scraped off from the inside of the connecting rod 6. When the water level of the lubricating oil is higher than the inner side of the mounting groove 22, it can enter the inside of the filter screen 25, and then after being filtered by the filter screen 25, it can enter the inside of the picking groove 26, and then be stored in the picking groove 26. On the contrary, when the inner rod 7 slides into the inside of the connecting rod 6, and the connecting rod 6 is The bottom end of the connecting rod 2 8 fits with the top end of the connecting rod 1 6. At this time, the protrusion at the bottom end of the connecting rod 2 8 can push the filter screen 25 to move downward, so that the filter screen 25 can squeeze the pick-up groove 26 to deform, so that the pick-up groove 26 can drip the lubricating oil inside it into the oil leakage groove 23, so that the lubricating oil can enter the interior of the connecting rod 1 6 again through the oil leakage groove 23, thereby further improving the uniformity of the lubricating oil coating between the connecting rod 1 6 and the inner rod 7, thereby making the mold closing more precise and the quality of the produced products better.

[0038] Embodiment 5: Based on Embodiment 4, a production process for a production equipment for automobile headrests is proposed, comprising the following steps:

[0039] After the lower mold 28 and the upper mold 9 are molded together, the oil pump 3 is started to inject lubricating oil into the inner rod 7, and the lubricating oil flows through the oil inlet groove 27 to the gap between the inner rod 7 and the connecting rod 6 to lubricate the sliding of the inner rod 7;

[0040] When the inner rod 7 slides into the interior of the connecting rod 1 6, the push rod 20 can push the inclined block 2 17 to move, so that the inclined block 2 17 can push the push sheet 14 through the inclined block 15 to squeeze the placement groove 13 to produce deformation, so that the placement groove 13 can fit tightly with the plug 5, so that the connection between the connecting rod 1 6 and the plug 5 will not leak oil, and the service life of the placement groove 13 is increased;

[0041] When the inner rod 7 slides out from the inside of the connecting rod 6, the blocking block 29 can scrape out the excess lubricating oil between the connecting rod 6 and the inner rod 7, and when the water level of the lubricating oil is higher than the inner height of the mounting groove 22, the lubricating oil can be filtered through the filter screen 25 and collected by the sponge block 24 for secondary use.

[0042] When the inner rod 7 slides into the connecting rod 1 6 again, and the outer side of the bottom end of the connecting rod 2 8 fits with the top end of the inner rod 7, the outer protrusion of the connecting rod 2 8 can squeeze the filter screen 25 to move downward, so that the filter screen 25 can squeeze the sponge block 24, and then the lubricating oil inside the sponge block 24 can flow into the gap between the connecting rod 1 6 and the inner rod 7 again through the oil leakage groove 23, thereby realizing the secondary utilization of the lubricating oil.

[0043] The specific operation steps of adding lubricating oil between the connecting rod 1 6 and the inner rod 7 include:

[0044] Step 1: When the upper mold 9 is molded with the lower mold 28, the top end of the connecting rod 1 6 is fitted with the bottom end of the connecting rod 2 8, so that the inner rod 7 can enter the interior of the connecting rod 1 6, so that the plug 5 can be inserted into the bottom end of the inner rod 7, and then by starting the oil pump 3, the oil pump 3 can guide the lubricating oil in the oil storage tank 2 to the inside of the plug 5 through the connecting pipe 4, so that the lubricating oil can enter the inside of the oil inlet groove 27, so that the lubricating oil can flow into the inner rod 7 and the connecting rod 1 6 through the through hole of the oil inlet groove 27, so that the external lubricating oil of the inner rod 7 is coated more evenly, which can greatly reduce the guide The friction at the column connection makes the service life of the guide column longer, which not only makes the service life of the mold longer, but also makes the guiding accuracy higher, so that the quality of the processed product is higher. At this time, the blocking block 29 is tightly fitted with the lower side of the inner wall of the connecting rod 6, so that the lubricating oil will not leak from the connection between the plug 5 and the connecting rod 6, and when the upper mold 9 is separated from the lower mold 28, the inner rod 7 can drive the blocking block 29 to move upward, and then the excess lubricating oil on the inner wall of the connecting rod 6 can be scraped upward, so that the lubricating oil can enter the interior of the installation groove 22, so that the excess lubricating oil can be recovered, so that the use economy is higher;

[0045] Step 2, when the inner rod 7 slides into the interior of the connecting rod 1 6, after the push rod 20 is fitted with the lower side of the inner wall of the connecting rod 1 6, the inner rod 7 continues to move downward. Under the interaction of forces, the push rod 20 can reversely extrude the rubber block 19 to produce deformation, and push the placement rod 18 to move upward, so that the placement rod 18 can push the inclined block 2 17 to move upward, so that the inclined block 2 17 and the inclined surface of the inclined block 1 15 can fit together and slide with each other, so that the inclined block 2 17 can push the inclined block 1 15 to move inward, and the inclined block 1 15 and the push piece 14 push the sealing ring 11 to fit closely with the plug 5, so that the push piece 14 can squeeze the sealing ring 11 to produce deformation, so that the convex ring 12 on the inner side of the sealing ring 11 can fit closely with the inside of the sealing groove 10, so that the plug 5 is installed more stably;

[0046] Step three, at this time, the bottom end of the second connecting rod 8 fits with the top end of the first connecting rod 6, so that the protrusion at the bottom end of the second connecting rod 8 can push the filter screen 25 to move downward, so that the filter screen 25 can squeeze the pick-up groove 26 to produce deformation, so that the pick-up groove 26 can drip the lubricating oil inside it into the oil leakage groove 23, so that the lubricating oil can enter the interior of the first connecting rod 6 again through the oil leakage groove 23, thereby further improving the uniformity of the lubricating oil coating between the first connecting rod 6 and the inner rod 7, thereby making the mold clamping more accurate and the quality of the produced products better;

[0047] Step 4: When the inner rod 7 is separated from the inside of the connecting rod 1 6, the rubber block 19 is no longer subjected to the upward force, so that the rubber block 19 can perform a reset movement, so that the rubber block 19 can push the push rod 20 to move downward, and the push rod 20 can drive the placement rod 18 to move downward, so that the placement rod 18 can drive the inclined block 2 17 to move downward, so that the inclined block 2 17 no longer squeezes the inclined block 1 15, so that the sealing ring 11 can be reset, so that the sealing ring 11 no longer applies a squeezing force to the plug 5, so that the plug 5 can be conveniently separated from the inside of the inner rod 7;

[0048] Step five, the inner rod 7 is able to drive the blocking block 29 to move upward, so that the blocking block 29 can scratch the inner wall of the connecting rod 6, so that the excess lubricating oil and impurities between the connecting rod 6 and the inner rod 7 can be scraped off from the inside of the connecting rod 6. When the water level of the lubricating oil is higher than the inner side of the mounting groove 22, it is able to enter the interior of the filter screen 25, and then after being filtered by the filter screen 25, it is able to enter the interior of the scraping groove 26, and is thereby stored in the scraping groove 26.

[0049] 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 production device for automobile headrests, comprising a base (1) and an upper mold (9), wherein the top of the base (1) is fixedly connected to a lower mold (28), and the four corners of the lower mold (28) are fixedly connected to connecting rods (6), and the bottom end of the connecting rod (6) is fixedly connected to the top of the base (1), characterized in that: The interior of the connecting rod 1 (6) is slidably connected to an inner rod (7), the outer lower side of the inner rod (7) is fixedly connected to a blocking block (29), the top end of the inner rod (7) is fixedly connected to a connecting rod 2 (8), the top end of the connecting rod 2 (8) is fixedly connected to the bottom end of the upper mold (9), the interior front and rear sides of the base (1) are provided with oil storage tanks (2), the upper side of the oil storage tank (2) is fixedly connected to an oil pump (3), the output end of the oil pump (3) is fixedly connected to a connecting pipe (4), the top end of the connecting pipe (4) is fixedly connected to a plug (5), the plug (5) passes through the connecting rod 1 (6) and is plugged into The inner rod (7) is provided with a sealing ring (11) on the upper outer side of the plug (5), the top of the connecting rod (6) is provided with a mounting groove (22), the outer side of the plug (5) is provided with a plurality of sealing grooves (10), the side of the sealing ring (11) close to the plug (5) is fixedly connected with a plurality of convex rings (12), the inner side of the sealing ring (11) is provided with a plurality of placement grooves (13), the inner side of the placement groove (13) is slidably connected with a push piece (14), the side of the push piece (14) away from the convex ring (12) is fixedly connected with an inclined block (15), the inner upper side of the inner rod (7) is provided with a plurality of The slide groove (16) is provided with a plurality of oil leakage grooves (23) on the lower side of the inner wall of the installation groove (22), a sponge block (24) is placed on the lower side of the interior of the installation groove (22), a filter screen (25) is arranged on the upper side of the sponge block (24), the filter screen (25) is slidably connected to the interior of the installation groove (22), a pick-up groove (26) is provided on the inner side of the filter screen (25), a plurality of limit grooves (21) are provided on the lower side of the interior of the inner rod (7), the limit grooves (21) are connected to the slide groove (16), the interior of the slide groove (16) is slidably connected to a second inclined block (17), the bottom end of the second inclined block (17) is fixed A placement rod (18) is fixedly connected, the placement rod (18) is sleeved with a rubber block (19) on the outside, the bottom end of the placement rod (18) is fixedly connected with a push rod (20), a plurality of oil inlet grooves (27) are provided inside the inner rod (7), the outside of the blocking block (29) fits with the inner wall of the connecting rod one (6), the outside of the bottom end of the connecting rod two (8) is designed as a protrusion, the inner side height of the installation groove (22) is lower than the outer side height, one end of the rubber block (19) is fixedly connected to the top end of the push rod (20), and the other end of the rubber block (19) is fixedly connected to the upper side of the inner wall of the limiting groove (21).

2. The production equipment for automobile headrests according to claim 1, characterized in that: The outside of the inclined block 1 (15) is slidably connected to the inside of the slide groove (16); the side of the inclined block 1 (15) away from the push piece (14) is an inclined surface; the sealing groove (10) matches the convex ring (12); and the sealing groove (10) fits the convex ring (12).

3. The production equipment for automobile headrests according to claim 1, characterized in that: The side of the second inclined block (17) close to the first inclined block (15) is an inclined surface, and the inclined surface of the second inclined block (17) is opposite to the inclined surface of the first inclined block (15).

4. The production equipment for automobile headrests according to claim 1, characterized in that: The outer upper side of the placement rod (18) is slidably connected to the inside of the slide groove (16), the outer lower side of the placement rod (18) is slidably connected to the inside of the limit groove (21), the outer side of the push rod (20) is slidably connected to the inside of the limit groove (21), and the bottom end of the push rod (20) is in contact with the lower side of the inner wall of the connecting rod (6).

5. A production process for a production equipment for automobile headrests, characterized in that: The production equipment for automobile headrests comprising any one of claims 1 to 4, wherein the process comprises the following steps: After the lower mold (28) and the upper mold (9) are molded together, the oil pump (3) is started to inject lubricating oil into the inner rod (7), and the lubricating oil flows through the oil inlet groove (27) to the gap between the inner rod (7) and the connecting rod (6) to lubricate the sliding of the inner rod (7); When the inner rod (7) slides into the interior of the first connecting rod (6), the push rod (20) is able to push the second inclined block (17) to move, so that the second inclined block (17) can push the push piece (14) through the first inclined block (15) to squeeze the placement groove (13) to produce deformation, so that the placement groove (13) can be closely fitted with the plug (5), so that the connection between the first connecting rod (6) and the plug (5) will not leak oil, and the service life of the placement groove (13) is increased; When the inner rod (7) slides out from the inside of the connecting rod (6), the blocking block (29) can scrape out the excess lubricating oil between the connecting rod (6) and the inner rod (7), and when the water level of the lubricating oil is higher than the height of the inner side of the mounting groove (22), the lubricating oil can be filtered through the filter (25) and collected by the sponge block (24) to wait for secondary use; When the inner rod (7) slides into the interior of the first connecting rod (6) again, and the outer side of the bottom end of the second connecting rod (8) fits with the top end of the inner rod (7), the outer protrusion of the second connecting rod (8) can squeeze the filter screen (25) to move downward, so that the filter screen (25) can squeeze the sponge block (24), and the lubricating oil inside the sponge block (24) can flow into the gap between the first connecting rod (6) and the inner rod (7) again through the oil leakage groove (23), thereby realizing the secondary utilization of the lubricating oil.

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