A quick-release hand mold base

Abstract

This invention discloses a compact and easy-to-install quick-release hand mold holder, comprising: a bracket and a mandrel with its upper end set in the bracket. The mandrel is sequentially equipped with a spring cover, an inner pressure spring, a positioning locking disc, a hand mold mounting base, a positioning block, and a pressure plate. An outer pressure spring is sleeved on the outside of the inner pressure spring on the mandrel. The positioning block includes: a base plate with a pair of symmetrically arranged positioning ramps on both sides of its width, forming positioning bosses. The positioning locking disc has locking inserts that movably pass through the hand mold mounting base. The bottom surface of the hand mold mounting base has a positioning mounting cavity and an anti-rotation mounting hole sequentially formed inwards. The positioning mounting cavity has a pair of limiting ramps that cooperate with the positioning bosses. Positioning resting grooves are provided on the bottom surface of the hand mold mounting base at the outer edges of the corresponding limiting ramps. The quick-release hand mold holder of this invention is mainly used for installation on glove production lines with hand mold holders.

Description

Technical Field

[0001] This invention relates to a glove production line, and more specifically to a quick-release hand mold holder for mounting hand molds on a glove production line. Background Technology

[0002] like Figure 1 and Figure 2As shown, a traditional quick-release hand mold holder includes a bracket 9 and a spindle 8. The upper end of the spindle 8 is movably mounted in the bracket 9. An upper compression spring 7, a positioning locking disc 6, a hand mold mounting base 5, a positioning block 4, a pressure plate 3, and a lower compression spring 2 are sequentially mounted on the spindle 8. The spindle 8 has a pair of anti-rotation surfaces 81 at the mounting positions of the hand mold mounting base 5 and the pressure plate 3. Corresponding anti-rotation mounting holes 500 and 31 are respectively provided in the hand mold mounting base 5 and the pressure plate 3. The hand mold mounting base 5 and the pressure plate 3 are movably mounted on the spindle 8 through their respective anti-rotation mounting holes 500 and 31, so that the hand mold mounting base 5 and the pressure plate 3 can only... The mandrel 8 moves up and down along its axial direction. A nut 1 for blocking the lower compression spring 2 is provided at the lower end of the mandrel 8, causing the upper end of the lower compression spring 2 to press against the pressure plate 3 and the lower end of the lower compression spring 2 to press against the blocking nut 1. The positioning block 4 is movably mounted on the mandrel 8 through a central mounting through-hole opened along the axial direction, allowing the positioning block 4 to both rotate and slide on the mandrel 8. The specific structure of the positioning block 4 includes: a base plate 40 corresponding to the pressure plate 3, positioning locking grooves 401 on both sides of the base plate 40, and a cylindrical... The upper part of the cylindrical part 41 has a pair of symmetrically arranged ramps on both sides to form positioning bosses 411. The bottom plate part 40 has a drag-reducing boss 42 on its back to separate the bottom plate part 40 from the pressure plate 3 below it. The mounting through hole 400 passes through the drag-reducing boss 42, the bottom plate part 40, the cylindrical part 41 and the positioning bosses 411. The positioning locking plate 6 is provided with positioning locking pins 61 that correspond one-to-one with the positioning locking grooves 401. The hand mold mounting base 5 has locking placement holes 503 that correspond one-to-one with the positioning locking pins 61. The positioning locking pins 61 on the positioning locking plate 6 correspond one-to-one with the movable pins 61. The hand mold mounting base 5 is movably installed in the locking mounting hole 503. The bottom surface of the hand mold mounting base 5 has, inwardly, a cylindrical mounting hole 501 that mates with the cylindrical part 41, and a locking positioning cavity 502 that mates with the positioning boss 411. The anti-rotation mounting hole of the hand mold mounting base 5 is located at the bottom of the locking positioning cavity 502 and extends outward through the hand mold mounting base 5. A support platform 504 is provided at the connection between the cylindrical mounting hole 501 and the two sides of the locking positioning cavity 502. An arc-shaped positioning support groove 505 that mates with the top of the positioning boss 411 is provided on the support platform 504. Because the spindle of the aforementioned quick-release hand mold base is relatively long, it not only increases the processing difficulty but also increases the manufacturing cost. Furthermore, since the hand mold mounting bases in traditional quick-release hand mold bases are all plastic parts, they suffer severe wear during actual use, typically having a service life of only about three years, significantly increasing the cost of use. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a quick-release hand mold base with a compact structure and convenient installation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a quick-release hand mold holder, the structure of which includes: a bracket, a spring cover, an inner clamping spring, an outer clamping spring, a positioning locking disc and a positioning block with mounting holes, a hand mold mounting seat with anti-rotation mounting holes, and a mandrel with its upper end disposed in the bracket and a pressure plate disposed at the lower end of the mandrel; the spring cover, the inner clamping spring, the positioning locking disc, the hand mold mounting seat, and the positioning block are sequentially sleeved on the mandrel from top to bottom, and the outer clamping spring is sleeved on the outside of the inner clamping spring; the spring cover is provided with a corresponding... The system includes an outer compression spring chamber that cooperates with the outer compression spring, and an inner compression spring chamber that protrudes outward from the bottom wall of the outer compression spring chamber and cooperates with the inner compression spring. The upper ends of the inner and outer compression springs abut against the spring cover. The positioning locking plate has a limiting protrusion or limiting recess that cooperates with the outer compression spring around its mounting hole. The hand mold mounting base has a limiting protrusion or limiting recess that cooperates with the inner compression spring around its anti-rotation mounting hole. The lower end of the outer compression spring presses against the positioning locking plate, and the lower end of the inner compression spring passes through the positioning lock. A locking disc rests against a hand mold mounting base; the locking disc has a locking insert on at least one side facing the hand mold mounting base; the positioning block can both rotate and slide on the mandrel, and its specific structure includes: a base plate near the pressure plate, the base plate having a pair of symmetrically arranged positioning ramps on both sides in its width direction to form positioning bosses, the mounting hole of the positioning block penetrating the top of the positioning bosses and the base plate; the mandrel has an anti-rotation surface corresponding to the anti-rotation mounting hole on the hand mold mounting base, and the hand mold mounting base passes through the anti-rotation mounting hole. The rotating mounting hole is movably inserted into the mandrel, allowing the hand mold mounting base to move only up and down along the axial direction of the mandrel. The hand mold mounting base has insert through holes that correspond one-to-one with the locking inserts. The hand mold mounting base has a positioning mounting cavity on its bottom surface, which faces the positioning block. The anti-rotation mounting hole is located at the center of the bottom of the positioning mounting cavity. The positioning mounting cavity has a pair of limiting ramps that cooperate with the positioning boss. On the bottom surface of the hand mold mounting base, at the outer edge of the corresponding limiting ramp, there is a positioning resting groove that cooperates with the top of the positioning boss of the positioning block.

[0005] As a preferred embodiment, in the aforementioned quick-release hand mold holder, the positioning locking disc has a pair of locking inserts symmetrically arranged on both sides of its side facing the hand mold mounting base.

[0006] As a preferred embodiment, in the quick-release hand mold base, the bottom plate of the positioning block is provided with a drag-reducing boss around the mounting through hole on its back side.

[0007] As a preferred embodiment, in the aforementioned quick-release hand mold holder, a hand mold mounting chamber is further provided on the bottom surface of the hand mold mounting base, and at least one auxiliary positioning protrusion is provided on the bottom wall of the hand mold mounting chamber, which is circumferentially arranged with the anti-rotation mounting hole of the hand mold mounting base as the center.

[0008] As a preferred embodiment, in the aforementioned quick-release hand mold base, the top of the positioning boss is provided with an arc-shaped smooth transition surface, and the positioning support groove is arc-shaped.

[0009] As a preferred embodiment, in the aforementioned quick-release hand mold base, the specific installation method of the pressure plate is as follows: the lower end of the mandrel is stepped, including: a pressure plate mounting boss for mounting the pressure plate and a threaded section for mounting a blocking nut. A pin hole is provided on the threaded section of the mandrel, and at least one anti-rotation surface is provided on the pressure plate mounting boss. An anti-rotation mounting hole that mates with the pressure plate mounting boss is provided on the pressure plate. The pressure plate is sleeved on the pressure plate mounting boss, and a blocking nut is selected and fastened to the threaded section of the mandrel. A cotter pin is inserted into the pin hole on the threaded section of the mandrel.

[0010] As a preferred embodiment, in the aforementioned quick-release hand mold holder, the specific structure of the hand mold mounting base includes: a positioning plate, a hand mold plate, and an insert guide sleeve. The positioning plate, hand mold plate, and insert guide sleeve are all metal stamping parts. The positioning plate and hand mold plate are provided with vertically penetrating insert mounting holes. An insert guide sleeve is provided in the insert mounting holes. An mounting edge is provided on the insert guide sleeve near its upper end. The mounting edge of the insert guide sleeve is provided on the positioning plate. The inner hole of the insert guide sleeve serves as an insert through hole for inserting a locking insert. The locking insert is a metal sheet, and the positioning locking plate is an injection molded part with a pre-installed locking insert.

[0011] As a preferred embodiment, in the aforementioned quick-release hand mold holder, the bracket includes: an L-shaped hanging arm, one end of which is provided with a connecting sleeve, a wear-resistant bushing is fitted inside the connecting sleeve, and the other end of the L-shaped hanging arm is provided with a support seat connected to the corresponding end of the mandrel.

[0012] As a preferred embodiment, in the aforementioned quick-release hand mold holder, the mandrel is movably mounted in the support seat via at least one bearing. Specifically, the support seat has an inwardly opening mounting hole on its bottom surface. The upper end of the mandrel has an annular groove on the upper and lower sides of all bearings, and a retaining spring is provided in the annular groove. The mounting hole of the support seat has an annular groove on the hole near its lower end, and a retaining spring is provided in the annular groove. The outer ring of the lowest bearing abuts against the retaining spring.

[0013] As a preferred embodiment, in the quick-release hand mold base, the mandrel is provided with at least one pair of bearings; a longitudinal oil passage hole is provided axially on the top end face of the mandrel, and at least one radial oil outlet hole communicating with the longitudinal oil passage hole is provided on the bearing mounting section of the mandrel for mounting the pair of bearings; an oil injection hole corresponding to the longitudinal oil passage hole on the top wall of the support base is provided.

[0014] The beneficial effects of this invention are as follows: The quick-release hand mold holder described in this invention has a compact structure and is very convenient to install. Furthermore, the shorter spindle significantly reduces processing difficulty, saving material and processing costs. In addition, by directly setting a locking insert on the positioning locking plate that matches the opening of the hand mold to lock the hand mold, it is not necessary to cooperate with the positioning block, making the positioning block structure simpler. Because a drag-reducing boss is set on the bottom plate of the positioning block, the contact area between the pressure plate and the positioning block is greatly reduced, significantly reducing the resistance when the pressure plate rotates, and greatly reducing labor intensity. Using metal materials to make the hand mold mounting base makes it more wear-resistant, thus greatly extending its service life and reducing usage costs. Because a hand mold mounting chamber is set on the bottom surface of the hand mold mounting base, and at least one auxiliary positioning protrusion arranged circumferentially around the anti-rotation mounting hole of the hand mold mounting base is set on the bottom wall of the hand mold mounting chamber, the installation of the hand mold is more convenient. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the quick-release hand mold base described in the background art from one perspective.

[0016] Figure 2 This is an exploded structural diagram of the quick-release hand mold base described in the background art from another perspective.

[0017] Figures 1 to 2 The reference numerals in the attached drawings are as follows: 1. Nut for blocking, 2. Lower clamping spring, 3. Pressure plate, 31. Anti-rotation mounting hole, 4. Positioning block, 40. Base plate, 400. Mounting through hole, 401. Positioning locking groove, 41. Columnar part, 411. Positioning boss, 42. Drag-reducing boss, 5. Hand mold mounting base, 500. Anti-rotation mounting hole, 501. Columnar placement hole, 502. Locking positioning cavity, 503. Locking placement hole, 504. Supporting platform, 505. Arc-shaped positioning support groove, 6. Positioning locking disc, 61. Positioning locking column, 7. Upper clamping spring, 8. Mandrel, 81. Anti-rotation surface, 9. Bracket.

[0018] Figure 3 This is a schematic diagram of the structure of the first embodiment of the quick-release hand mold base described in this invention.

[0019] Figure 4 yes Figure 3A schematic diagram of the AA cross-sectional structure.

[0020] Figure 5 yes Figure 3 The diagram shows an exploded view of the quick-release hand mold base.

[0021] Figure 6 yes Figure 3 The diagram shows an exploded view of the quick-release hand mold base from another perspective.

[0022] Figure 7 This is a three-dimensional structural diagram of the insert guide sleeve.

[0023] Figure 8 This is a three-dimensional structural diagram of the spring seat.

[0024] Figure 9 This is a schematic diagram of the three-dimensional structure of the positioning block from one perspective.

[0025] Figure 10 This is a three-dimensional structural diagram of the positioning block from another perspective.

[0026] Figure 11 This is a schematic diagram of the second embodiment of the quick-release hand mold base described in this invention.

[0027] Figure 12 yes Figure 11 Schematic diagram of the BB cross-section structure.

[0028] Figure 13 yes Figure 11 The diagram shows an exploded view of the quick-release hand mold base.

[0029] Figure 14 yes Figure 11 The diagram shows an exploded view of the quick-release hand mold base from another perspective.

[0030] Figure 15 This is an exploded structural diagram of the third embodiment of the quick-release hand mold base described in this invention.

[0031] Figure 16 This is an exploded structural diagram of the fourth embodiment of the quick-release hand mold base described in this invention.

[0032] Figure 17 This is an exploded structural diagram of the fifth embodiment of the quick-release hand mold base described in this invention.

[0033] Figure 18 This is an exploded structural diagram of the sixth embodiment of the quick-release hand mold base described in this invention.

[0034] Figure 19 This is a schematic diagram of the three-dimensional structure of a hand mold.

[0035] Figures 3 to 19 The reference numerals in the attached drawings are as follows: 1. Cotter pin; 2. Nut for stopping; 3. Pressure plate; 31. Anti-rotation mounting hole; 311. Limiting surface; 4. Positioning block; 40. Base plate; 400. Mounting through hole; 401. Corner; 41. Positioning boss; 411. Positioning ramp; 412. Arc-shaped smooth transition surface; 42. Annular drag-reducing boss; 5. Hand mold mounting base; 501. Anti-rotation mounting hole; 5011. Anti-rotation surface; 503. Insert through hole; 51. Positioning plate; 512. Positioning guide hole; 513. Insert sleeve mounting hole. 514. Limiting recess; 515. Positioning surface; 52. Hand mold plate; 520. Bottom surface; 5201. Annular edge; 5202. Auxiliary positioning protrusion; 5203. Mounting through hole; 521. Limiting ramp; 522. Arc-shaped positioning support groove; 523. Insert mounting hole; 53. Insert guide sleeve; 531. Guide base plate; 5311. Mounting connecting piece; 532. Guide side plate; 5321. Mounting connecting piece; 533. Guide baffle; 6. Positioning locking plate; 600. Mounting through hole; 61. Locking insert. 62. Positioning guide post; 63. Positioning locking surface; 64. Limiting protrusion; 70. Spring cover; 700. Mounting through hole; 701. Inner compression spring chamber; 702. Outer compression spring chamber; 71. Inner compression spring; 72. Outer compression spring; 8. Mandrel; 801. Longitudinal oil passage hole; 802. Radial oil outlet hole; 803. Annular groove on shaft; 804. Annular mounting groove; 805. Anti-rotation surface; 806. Annular groove on shaft; 81. Threaded section; 811. Pin hole; 82. Pressure plate mounting boss; 83. Interval Spacer, 84, Bearing, 85, First shaft retaining ring, 86, Second shaft retaining ring, 9, Bracket, 91, Support seat, 911, Mounting hole, 912, Oil injection hole, 913, Mounting through hole, 914, Mounting through hole, 9141, Annular mounting boss, 9142, Annular groove on hole, 92, L-shaped hanging arm, 921, Connecting sleeve, 922, Wear-resistant bushing, 93, Hole retaining ring, 14, Flat washer, 15, Cotter pin, 16, Spring washer, 17, Nut, 18, Hand mold, 181, Opening, 182, Inner cavity. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 3 to 19 This invention provides a detailed description of the specific implementation scheme of a quick-release hand mold base.

[0037] Example 1:

[0038] like Figure 3 , Figure 5 and Figure 6As shown, the quick-release hand mold holder of the present invention includes: a bracket 9, a spindle 8, a spring cover 70, an inner clamping spring 71, an outer clamping spring 72, a positioning locking disc 6, a hand mold mounting base 5 and a positioning block 4, a pressure plate 3, a blocking nut 2 and a cotter pin 1. The bracket 9 includes: an L-shaped hanging arm 92, one end of which is provided with a connecting sleeve 921, in which a wear-resistant bushing 922 is fitted. The other end of the L-shaped hanging arm 92 is provided with a support seat 91 connected to the corresponding end (upper end) of the spindle 8. Figure 4 As shown, the upper end of the mandrel 8 is movably mounted in the support 91 via a pair of bearings 84 and a spacer sleeve 83 located between the pair of bearings 84. Specifically, the support 91 has an inwardly opening mounting hole 911 on its bottom surface. The upper end of the mandrel 8 has an annular groove 803 on the upper side of the pair of bearings 84 and an annular groove 806 on the lower side of the pair of bearings 84. An annular mounting groove 804 for mounting the spacer sleeve 83 is provided between the pair of bearings 84. A first shaft retaining spring 85 is provided on the upper annular groove 803, and a second shaft retaining spring 86 is provided on the lower annular groove 806. The mounting hole 911 of the support 91 has an annular groove near its lower end, and a retaining spring 93 is provided in the annular groove. The outer ring of the lowermost bearing 84 abuts against the retaining spring 93 (this is a common technique in the art and will not be described further here). Figure 9 and Figure 10 As shown, the positioning block 4 has a mounting through hole 400 that mates with the mandrel 8, allowing the positioning block 4 to both rotate and slide on the mandrel 8. The specific structure of the positioning block 4 includes: a base plate portion 40 near the pressure plate 3; a pair of symmetrically arranged positioning ramps 411 on both sides of the base plate portion 40 in its width direction, forming positioning bosses 41; an arc-shaped smooth transition surface 412 at the top of the positioning bosses 41, i.e., the top of the pair of positioning ramps 411; the mounting through hole 400 of the positioning block 4 penetrates the top of the positioning bosses 41 and the base plate portion 40; and an annular drag-reducing boss 42 is provided on the back of the base plate portion 40 surrounding its mounting through hole 400. The hand mold mounting base 5 includes: a positioning disc 51, a hand mold disc 52, and a pair of insert guide sleeves 53, all made of stainless steel sheet. Figure 7As shown, the insert guide sleeve 53 includes: a guide base plate 531, guide side plates 532 bent on both sides of the guide base plate 531, guide baffles 533 parallel to the guide base plate 531 bent at the ends of the guide side plates 532, mounting connecting pieces 5311 provided on the outer surface of the guide base plate 531, and mounting connecting pieces 5321 provided on the outer surface of the guide side plates 532; a hand mold plate 52 fixed on the positioning plate 51, and a pair of corresponding insert guide sleeves 53 on the positioning plate 51 and the hand mold plate 52. The corresponding insert mounting holes 513 and 523 are provided. The insert guide sleeve 53 is inserted into the corresponding insert mounting hole 513 on the positioning plate 51 and the corresponding insert mounting hole 523 on the hand mold plate 52. The mounting connecting pieces 5311 and 5321 are butt welded to the positioning plate 51. The positioning plate 51 is provided with an anti-rotation mounting hole 501 and a pair of positioning guide holes 512 symmetrically arranged on both sides of the anti-rotation mounting hole 501. A pair of parallel anti-rotation surfaces 5011 are provided on the inner wall of the anti-rotation mounting hole 501. The hand mold plate 52 faces the anti-rotation surface 5011. A positioning mounting cavity is provided on one side of the positioning block 4, i.e., its bottom surface 520. The positioning mounting cavity contains a pair of limiting ramps 521 that mate with the positioning bosses 41 on the positioning block 4. The positioning mounting cavity of the hand mold plate 52 also has a mounting through hole 5203 communicating with the anti-rotation mounting hole 501 on the positioning plate 51. On the bottom surface 520 of the hand mold plate 52, at the outer edge of the corresponding limiting ramps 521, there is an arc-shaped positioning resting groove 522 that mates with the top of the positioning bosses 41 of the positioning block 4. The bottom surface of the hand mold plate 52... An annular edge 5201 is also provided at the edge of 520, forming a hand mold mounting chamber. Six auxiliary positioning protrusions 5202 are arranged circumferentially around the anti-rotation mounting hole 501 of the positioning plate 51 on the bottom wall of the hand mold mounting chamber, i.e., the bottom surface 520 of the hand mold plate 52. The spring cover 70, inner compression spring 71, positioning locking plate 6, hand mold mounting base 5, positioning block 4, and pressure plate 3 are sequentially sleeved on the mandrel 8 from top to bottom. The outer compression spring 72 is sleeved on the upper side of the positioning locking plate 6 and the outer side of the inner compression spring 71. Figure 8As shown, the spring cover 70 is provided with an outer compression spring chamber 702 that cooperates with the outer compression spring 72, and an inner compression spring chamber 701 that protrudes outward from the bottom wall of the outer compression spring chamber 702 and cooperates with the inner compression spring 71. A mounting through hole 700 is provided on the bottom wall of the inner compression spring chamber 701. The upper end of the inner compression spring 71 abuts against the bottom wall of the inner compression spring chamber 701, and the upper end of the outer compression spring 72 abuts against the bottom wall of the outer compression spring chamber 702. A limiting protrusion that cooperates with the outer compression spring 72 is provided around the mounting through hole 600 on the positioning locking disc 6. Part 64, the positioning disk 51 has a limiting recess 514 around its anti-rotation mounting hole 501, which cooperates with the inner compression spring 71. The lower end of the outer compression spring 72 presses against the positioning locking disk 6, so that the limiting protrusion 64 on the positioning locking disk 6 is placed in the lower end of the outer compression spring 72. The lower end of the inner compression spring 71 passes through the mounting hole 600 of the positioning locking disk 6 and abuts against the limiting recess 514 of the positioning disk 51. The positioning locking disk 6 has a pair of locking inserts 61 symmetrically arranged on both sides of its side facing the hand mold mounting base 5, with the mounting hole 600 as the center. Two positioning guide posts 62 are also provided, each corresponding to a positioning guide hole 512 on the positioning disk 51. The positioning guide posts 62 are movably disposed in the corresponding positioning guide holes 512 on the positioning disk 51, and the locking insert 61 is movably disposed in the corresponding insert guide sleeve 53. The mandrel 8 is provided with a pair of anti-rotation surfaces 805 corresponding to the anti-rotation mounting holes 501 on the positioning disk 51. The hand mold mounting base 5 is movably disposed on the mandrel 8 through the anti-rotation mounting holes 501 on the positioning disk 51 and the mounting through holes 5203 on the hand mold disk 52, so that the hand mold mounting base 5 can only move up and down along the axial direction of the mandrel 8. The specific installation method of the pressure plate 3 is as follows: the lower end of the mandrel 8 is stepped, including: a pressure plate mounting boss 82 for installing the pressure plate 3 and a threaded section 81 for installing the blocking nut 2. The threaded section 81 is provided with a pin hole 811. The pressure plate mounting boss 82 is provided with an anti-rotation surface. The pressure plate 3 is provided with an anti-rotation mounting hole 31 (with a limiting surface 311) that cooperates with the pressure plate mounting boss 82 at the lower end of the mandrel 8. The pressure plate 3 is sleeved on the pressure plate mounting boss 82 of the mandrel 8. The blocking nut 2 is selected and fastened to the threaded section 81 of the mandrel 8. Then, a cotter pin 1 is inserted into the pin hole 811.

[0039] In practical applications, the positioning locking disc 6 may also be provided with a limiting recess around its mounting through hole 600 to cooperate with the external clamping spring 72; the locking insert 61 is a metal sheet, and the positioning locking disc 6 is an injection molded part with the locking insert 61 pre-installed. To increase the firmness of the locking insert 61, the locking insert 61 is provided with through holes in its embedded part (the number of through holes can be determined according to the actual situation). Without affecting the rotation of the positioning block 4, the length of the base plate 40 is increased by providing arc chamfers at the four corners 401 of the base plate 40 of the positioning block 4, so that when the base plate 40 of the positioning block 4 is placed in the opening 181 of the hand mold 18 (see... Figure 19 As shown, this greatly reduces the movement gap of the bottom plate 40 of the positioning block 4 in the opening 181 of the hand mold 18. A longitudinal oil passage hole 801 is provided along the axis on the top end face of the mandrel 8. A radial oil outlet hole 802 communicating with the longitudinal oil passage hole 801 is provided on the bearing mounting section of the mandrel 8 for mounting the bearing 84 and the spacer sleeve 83. An oil injection hole 912 corresponding to the longitudinal oil passage hole 801 on the mandrel 8 is provided on the top wall of the support seat 91. Therefore, during use, oil can be added to the bearing 84 through the longitudinal oil passage hole 801 and the radial oil outlet hole 802 of the mandrel 8 to extend the service life of the bearing 84. A pair of positioning locking surfaces 63 are provided on the positioning locking disc 6, and a positioning surface 515 perpendicular to the positioning locking surfaces 63 on the positioning locking disc 51 is provided on the positioning disc 51.

[0040] Example 2:

[0041] like Figures 11 to 14 The quick-release hand mold holder shown includes a hand mold mounting base 5 comprising an integrally injection-molded positioning plate 51 and a hand mold plate 52. The hand mold mounting base 5 has an insertion through-hole 503 that passes through the positioning plate 51 and the hand mold plate 52. A locking insert 61 on the positioning locking plate 6 is movably inserted into the insertion through-hole 503 on the hand mold mounting base 5. Except that both the hand mold mounting base 5 and the positioning locking plate 6 are nylon injection-molded parts, the other structures are the same as those in Embodiment 1, and will not be described again here.

[0042] Example 3:

[0043] like Figure 15 The quick-release hand mold base shown is the same in principle and structure as that in Embodiment 1, except that a positioning surface 515 parallel to the positioning locking surface 63 on the positioning plate 6 is provided on the positioning plate 51. It will not be described again here.

[0044] Example 4:

[0045] like Figure 16The quick-release hand mold base shown is the same in principle and structure as that in embodiment 2, except that a positioning surface 515 parallel to the positioning locking surface 63 on the positioning plate 6 is provided on the positioning plate 51. It will not be described again here.

[0046] Example 5:

[0047] like Figure 17 The mandrel 8 in the quick-release hand mold base shown has an extension section 88 at its top that is thinner than the main body of the mandrel 8, and a pin hole 881 is provided on the extension section 88. The top wall of the support base 91 has a mounting through hole that mates with the extension section 88 of the mandrel 8. The extension section 88 of the mandrel 8 extends out from the mounting through hole 913 on the top wall of the support base 91, is fitted with a flat washer 14, and a cotter pin 15 is inserted into the pin hole 881 of the extension section 88 of the mandrel 8.

[0048] Example 6:

[0049] like Figure 18 The mandrel 8 in the quick-release hand mold base shown has an extension section 88 at its top that is thinner than the main body of the mandrel 8. The extension section 88 has threads and a pin hole 881. The support base 91 has a mounting through hole 914. The mounting through hole 914 has an annular mounting boss 9141 near its lower end and an annular groove 9142 near its upper end. The outer ring of a lower bearing 84 on the mandrel 8 rests on the annular mounting boss 9141. A retaining spring 93 is located above the upper bearing 84 and is engaged in the annular groove 9142. After a spring washer 16 is fitted onto the extension section 88 of the mandrel 8, it is tightened with a nut 17. Then, a cotter pin 15 is inserted into the pin hole 881 on the extension section 88 of the mandrel 8.

[0050] The working principle of the quick-release hand mold base described in this invention is as follows: During installation, the base plate 40 of the pressure plate 3 and the positioning block 4 are parallel (overlapping). At this time, it is only necessary to... Figure 17The hollow hand mold 18 shown has its opening 181 aligned with the pressure plate 3 and is pushed forward. During this process, both the pressure plate 3 and the bottom plate portion 40 of the positioning block 4 are inserted into the opening 181 of the hand mold 18. Once pushed into place, the pressure plate 3 passes through the opening 181 and enters the inner cavity 182 of the hand mold 18. Rotating the hand mold 18 causes the positioning block 4 located in the opening 181 to rotate along with the hand mold 18. The positioning boss 41 of the positioning block 4 gradually advances along the limiting ramps 521 on both sides of the positioning mounting cavity of the hand mold mounting base 5, and finally falls into the positioning mounting cavity. At this time, the bottom plate portion 40 of the pressure plate 3 and the positioning block 4 are perpendicular to each other, and the positioning lock... Under the action of the external compression spring 72, the stop plate 6 moves toward the hand mold mounting base 5, so that the locking insert 61 on the positioning locking plate 6 is inserted into the opening 181 of the hand mold 18. At this time, the hand mold 18 is positioned on the hand mold mounting base 5. When disassembling, simply pull the positioning locking plate 6 upward so that the locking insert 61 leaves the opening 181 of the hand mold 18. Then, rotate the hand mold 18 in the opposite direction so that the positioning boss 41 of the positioning block 4 leaves the positioning mounting cavity of the hand mold plate 52. Finally, the top of the positioning boss 41 rests on the arc-shaped positioning resting groove 522 of the hand mold plate 52. At this time, the hand mold 18 can be removed from the hand mold mounting base 5.

[0051] In summary, these are merely preferred embodiments of the present invention and are not intended to limit the scope of the invention. All equivalent variations and modifications made to the shape, structure, features, and spirit described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A quick-release hand mold base, comprising: The bracket and the mandrel set in the bracket at its upper end are characterized in that: the quick-release hand mold base further includes: a spring cover, an inner compression spring, an outer compression spring, a positioning locking plate and a positioning block with a mounting hole, a hand mold mounting base with an anti-rotation mounting hole, and a pressure plate set at the lower end of the mandrel; the spring cover, the inner compression spring, the positioning locking plate, the hand mold mounting base, and the positioning block are sequentially sleeved on the mandrel from top to bottom, and the outer compression spring is sleeved on the outside of the inner compression spring; the spring cover is provided with an outer compression spring chamber that cooperates with the outer compression spring, and an inner compression spring chamber that protrudes outward from the bottom wall of the outer compression spring chamber and cooperates with the inner compression spring, and the upper ends of the inner and outer compression springs are... The positioning locking disc, resting against the spring cover, has a limiting protrusion or limiting recess around its mounting hole that cooperates with the outer clamping spring. The hand mold mounting base has a limiting protrusion or limiting recess around its anti-rotation mounting hole that cooperates with the inner clamping spring. The lower end of the outer clamping spring presses against the positioning locking disc, and the lower end of the inner clamping spring passes through the positioning locking disc and rests against the hand mold mounting base. The positioning locking disc has a locking insert on at least one side facing the hand mold mounting base. The positioning block can both rotate and slide on the spindle. The specific structure of the positioning block includes: a base plate near the pressure plate, with a pair of symmetrically arranged... A positioning ramp is formed to create a positioning boss. The mounting hole of the positioning block penetrates the top of the positioning boss and the bottom plate. The mandrel is provided with an anti-rotation surface corresponding to the anti-rotation mounting hole on the hand mold mounting seat. The hand mold mounting seat is movably mounted on the mandrel through the anti-rotation mounting hole, so that the hand mold mounting seat can only move up and down along the axial direction of the mandrel. The hand mold mounting seat has a through hole corresponding to the locking insert. The hand mold mounting seat has a positioning mounting cavity on its bottom surface facing the positioning block. The anti-rotation mounting hole is located in the center of the bottom of the positioning mounting cavity. The positioning mounting cavity has a pair of limiting ramps that cooperate with the positioning boss. The bottom surface of the hand mold mounting seat has a corresponding limiting ramp outside the corresponding limiting ramp. A positioning groove is provided on the side edge to mate with the top of the positioning boss of the positioning block; the top of the positioning boss is provided with an arc-shaped smooth transition surface, and the positioning groove is arc-shaped; the hand mold mounting base includes: a positioning plate, a hand mold plate, and an insert guide sleeve. The positioning plate, hand mold plate, and insert guide sleeve are all metal stamping parts. The positioning plate and hand mold plate are provided with vertically penetrating insert mounting holes. An insert guide sleeve is provided in the insert mounting holes. An installation edge is provided on the insert guide sleeve near its upper end. The installation edge of the insert guide sleeve is provided on the positioning plate. The inner hole of the insert guide sleeve serves as an insert through hole for inserting a locking insert. The locking insert is a metal sheet, and the positioning locking plate is an injection molded part with a pre-installed locking insert.

2. The quick-release hand mold base according to claim 1, characterized in that, The positioning locking disc has a pair of locking inserts symmetrically arranged on both sides of the side facing the hand mold mounting base.

3. A quick-release hand mold base according to claim 1, characterized in that, The bottom plate of the positioning block has a drag-reducing boss on its back side around its mounting hole.

4. A quick-release hand mold base according to claim 1, characterized in that, The bottom surface of the hand mold mounting base is also provided with a hand mold mounting chamber, and the bottom wall of the hand mold mounting chamber is provided with at least one auxiliary positioning protrusion arranged circumferentially with the anti-rotation mounting hole of the hand mold mounting base as the center.

5. A quick-release hand mold base according to claim 1, characterized in that, The specific installation method of the pressure plate is as follows: the lower end of the mandrel is stepped, including: a pressure plate mounting boss for installing the pressure plate and a threaded section for installing a blocking nut. A pin hole is opened on the threaded section of the mandrel. At least one anti-rotation surface is provided on the pressure plate mounting boss. An anti-rotation mounting hole that mates with the pressure plate mounting boss is opened on the pressure plate. The pressure plate is sleeved on the pressure plate mounting boss. A blocking nut is selected and fastened to the threaded section of the mandrel. A cotter pin is inserted into the pin hole on the threaded section of the mandrel.

6. A quick-release hand mold base according to any one of claims 1 to 5, characterized in that, The bracket includes: an L-shaped hanging arm, one end of which is provided with a connecting sleeve, a wear-resistant bushing is fitted inside the connecting sleeve, and the other end of the L-shaped hanging arm is provided with a support seat that is connected to the corresponding end of the spindle.

7. A quick-release hand mold base according to claim 6, characterized in that, The mandrel is movably mounted in the support seat via at least one bearing. Specifically, the support seat has an inwardly opening mounting hole on its bottom surface. The upper end of the mandrel has an annular groove on the upper and lower sides of all bearings, and a retaining spring is provided in the annular groove. The mounting hole of the support seat has an annular groove on the hole near its lower end, and a retaining spring is provided in the annular groove. The outer ring of the lowest bearing abuts against the retaining spring.

8. A quick-release hand mold base according to claim 7, characterized in that, The mandrel is provided with at least one pair of bearings; a longitudinal oil passage hole is provided on the top end face of the mandrel along the axial direction; at least one radial oil outlet hole communicating with the longitudinal oil passage hole is provided on the bearing mounting section of the mandrel for mounting the pair of bearings; an oil injection hole corresponding to the longitudinal oil passage hole on the top wall of the support is provided.

Images