Hand mold fixing structure, hand mold and hand mold mold

Abstract

The application discloses a hand mold fixing structure, a hand mold and a hand mold mold, and relates to the technical field of hand mold processing equipment, and comprises the hand mold, a finger end, an arm end and an inner cavity extending between the finger end and the arm end, the inner cavity is provided with a cavity opening on the end face of the arm end, the cross-sectional dimension of the inner cavity gradually expands outward or remains unchanged along the finger end to the arm end, and a clamping hole is arranged on the inner cavity wall; the fixing seat comprises a rotating shaft, a first clamping plate, a second clamping plate and an elastic piece, the first clamping plate is sleeved on the rotating shaft and can slide along the rotating shaft in the axial direction under the driving of the elastic piece, and the second clamping plate is arranged on the side of the first clamping plate close to the hand mold, so that the hand mold can be fixed by the fixing seat while being one-time injection molded.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hand mold processing equipment, in particular to a hand mold fixing structure, a hand mold and a hand mold mold. BACKGROUND

[0002] The hand mold can be used for making disposable PVC, nitrile and other gloves for medical and health care. Usually, thousands or even tens of thousands of hand molds are installed on a production line for making gloves. At present, ceramic and plastic materials are mature materials for making hand molds, and the fixing scheme of the hand mold is also very mature. Generally, the hand mold is fixed on the production line through a fixing seat matched with the hand mold.

[0003] Since the hand mold is designed as a hollow structure, and in order to facilitate the fixing of the fixing seat, the end of the hand mold generally needs to be closed (such as Figure 11 ), which causes the size of the cavity opening on the end face of the inner cavity to be smaller than the internal cross section of the inner cavity, forming a reverse buckling structure on injection molding, so that the hand mold cannot be injection molded at one time on the market at present, and needs to be injection molded in two parts, and then welded into an integrated structure after being injection molded with low-density reinforced thermoplastic material, resulting in low efficiency of producing the hand mold, and the weld on the hand mold is prone to cracking under the thermal shock of high and low temperature cycles, resulting in short service life of the hand mold. SUMMARY

[0004] The purpose of the present application is to provide a hand mold fixing structure to solve the problem that the hand mold cannot be injection molded at one time due to the adaptation of the fixing seat in the prior art.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A hand mold fixing structure, comprising:

[0007] A hand mold having a finger end, an arm end, and an inner cavity extending between the finger end and the arm end, the inner cavity having a cavity opening on the end face of the arm end, the cross-sectional size of the inner cavity along the direction from the finger end to the arm end being constant or gradually expanding outward, and a clamping hole being provided on the inner cavity wall;

[0008] A fixing seat comprising a rotating shaft, a first clamping plate, a second clamping plate and an elastic member, the first clamping plate being sleeved on the rotating shaft and being axially slidable along the rotating shaft under the driving of the elastic member, and the second clamping plate being arranged on the side of the first clamping plate close to the hand mold;

[0009] In the installed state, the elastic member is elastically deformed by external force to drive the first clamping plate to axially move away from the second clamping plate along the rotating shaft, so that the hand mold can be sleeved on the second clamping plate and the second clamping plate is aligned with the clamping hole in the circumferential direction of the rotating shaft;

[0010] In the mounted state, the second clamping plate end is inserted into the clamping hole, and the elastic member restores elastically after the external force disappears to drive the first clamping plate to move axially along the rotating shaft to approach the second clamping plate, so that the first clamping plate abuts against the arm end face and is clamped with the second clamping plate.

[0011] As a further scheme of the present application, the outer wall of the arm end is provided with a rotation-stopping groove, the first clamping plate is provided with a rotation-stopping protrusion adapted to the rotation-stopping groove to limit the rotation of the hand mold relative to the first clamping plate, and the rotating shaft can drive the rotation-stopping protrusion and the second clamping plate to rotate synchronously, so that the second clamping plate is inserted into the clamping hole while the rotation-stopping protrusion is aligned with the rotation-stopping groove along the rotating shaft in the front and back directions.

[0012] The elastic member restores elastically after the external force disappears to drive the first clamping plate to move axially along the rotating shaft to approach the second clamping plate, so that the rotation-stopping protrusion is inserted into the rotation-stopping groove.

[0013] As a further scheme of the present application, the outer wall of the arm end tail is provided with a protrusion, the protrusion is provided with a rotation-stopping groove and a guide groove, the guide groove is arranged at the inlet end of the rotation-stopping groove, and the caliber of the guide groove expands outward along the two sides of the rotation-stopping groove.

[0014] As a further scheme of the present application, the clamping hole is a stepped hole, including a first stepped hole and a second stepped hole arranged circumferentially along the rotating shaft, the hole opening width of the first stepped hole is greater than that of the second stepped hole in the axial direction of the rotating shaft, the second clamping plate enters the second stepped hole after passing through the first stepped hole, and the thickness of the second clamping plate is adapted to the hole opening width of the second stepped hole.

[0015] As a further scheme of the present application, the inner cavity of the arm end tail has a long-diameter region and a short-diameter region, the clamping hole is arranged on the wall of the short-diameter region, the second clamping plate includes a main body part connected with the rotating shaft and a clamping part arranged on the periphery of the main body part and corresponding to the clamping hole, and the clamping part is inserted into the corresponding clamping hole during the rotation of the second clamping plate from the long-diameter region to the short-diameter region.

[0016] As a further scheme of the present application, the clamping hole is arranged in two, and the two clamping holes penetrate the inner cavity wall, the second clamping plate is in a strip shape, the main body part is located in the middle, and the clamping part is arranged in two and located at both ends.

[0017] As a further scheme of the present application, the elastic member is arranged between the second clamping plate and the first clamping plate and / or on the side of the first clamping plate away from the second clamping plate.

[0018] As a further scheme of the present application, the elastic member is arranged on the side of the first clamping plate away from the second clamping plate, and a tubular elastic member sleeve is formed on the end face of the first clamping plate towards the elastic member.

[0019] and / or,

[0020] The periphery of the end face of the first clamping plate towards the second clamping plate extends towards the second clamping plate to form a stop edge.

[0021] As a further scheme of the present application, the shaft has a connecting shaft with a smaller diameter than the shaft, and the second clamping plate is sleeved on the connecting shaft, and when the second clamping plate is matched with the first clamping plate to clamp the hand mold, the second clamping plate is stopped by the end face of the connecting shaft close to the shaft.

[0022] As a further scheme of the present application, the second clamping plate is slidably connected to the connecting shaft along the axial direction of the connecting shaft.

[0023] The present application also provides a hand mold having a finger end, an arm end, and an inner cavity extending between the finger end and the arm end, the inner cavity having a cavity opening on the end face of the arm end, the cross-sectional dimension of the inner cavity along the direction from the finger end to the arm end being constant or gradually expanding outward, and a clamping hole being arranged on the wall of the inner cavity to cooperate with the fixing seat to fix the hand mold.

[0024] The present application also provides a hand mold mold for manufacturing the hand mold, the hand mold mold comprising an upper mold and a lower mold which are designed in a split type and are butted to form a mold cavity, and a cavity mold which can be inserted into the mold cavity, the mold cavity having the same external contour as the hand mold, and the cavity mold being used to manufacture the inner cavity of the hand mold.

[0025] The present application has the following beneficial effects: the hand mold is designed to have an inner cavity with a constant or gradually expanding cross-sectional dimension along the direction from the finger end to the arm end, and the inner cavity has a cavity opening on the end face of the arm end, so that the hand mold can be injection molded at one time. Meanwhile, the clamping hole is arranged on the wall of the inner cavity, the second clamping plate can be inserted into the clamping hole, and the second clamping plate and the first clamping plate can clamp the hand mold together under the further action of the elastic member, so that the hand mold can be fixed conveniently and quickly. BRIEF DESCRIPTION OF DRAWINGS

[0026] The present application will be further described below with reference to the drawings.

[0027] Figure 1 is a schematic diagram of the overall structure of the hand mold fixing structure in an embodiment of the present application;

[0028] Figure 2 is an exploded view of the hand mold fixing structure in an embodiment of the present application;

[0029] Figure 3 is Figure 2 is an enlarged view of the structure at A in FIG. 6;

[0030] Figure 4 is an axial sectional view of a hand mold fixing structure in an embodiment of the present application;

[0031] Figure 5 is a schematic view of the overall structure of a hand mold fixing structure in embodiment 8 of the present application;

[0032] Figure 6 is Figure 5 is an enlarged view of the structure at B in FIG. 7;

[0033] Figure 7 is a schematic view of the structure of a hand mold in an embodiment of the present application;

[0034] Figure 8 is Figure 1 is a radial sectional view of the structure of FIG. 8;

[0035] Figure 9 is a schematic view of the structure of a fixing base in an embodiment of the present application;

[0036] Figure 10 is an exploded view of a hand mold in an embodiment of the present application;

[0037] Figure 11 is a schematic view of the structure of a hand mold in the prior art. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0039] It should be noted that the terms "first", "second", and similar terms used in the present application do not indicate any order, quantity, or importance, but are only used to distinguish different components. The descriptions of "left", "right", "left side", "right side", "upper", "lower", "top", "bottom", and the like in the present application are defined based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the described structure must be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0040] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] As described in the background, the current hand mold is designed with a closed inner cavity to form a reverse structure for installation and fixation, which requires the hand mold to be split into multiple parts for separate injection molding and then assembled. Based on this, the present application provides a hand mold fixing structure, which changes the structure of the hand mold and the fixing seat for mounting the hand mold, so that the hand mold changes the closed design and avoids the reverse structure, thereby making it possible to injection mold the hand mold at one time.

[0042] Embodiment 1

[0043] Please refer to Figures 1-4 The present application is a hand mold fixing structure, which includes a hand mold 1 and a fixing seat 2 for fixing the hand mold 1.

[0044] Specifically, the hand mold 1 has a finger end 12, an arm end 13, and an inner cavity 11 extending between the finger end 12 and the arm end 13. The inner cavity 11 has a cavity opening 111 on the end face of the arm end 13, which is surrounded by the peripheral wall of the hand mold 1. The finger end 12 and the arm end 13 are respectively the two end portions of the hand mold 1, and the finger end 12 is the end portion at the finger end of the hand mold 1, and the arm end 13 is the end portion at the arm end of the hand mold 1. The cross-sectional dimension of the inner cavity 11 along the direction from the finger end 12 to the arm end 13 is constant or gradually expands outward, so that no reverse structure is formed in the inner cavity 11 along the direction from the finger end 12 to the arm end 13. This makes it possible to remove the cavity mold 103 (see Figure 10 ) for forming the inner cavity 11 from the inner cavity 11 without obstruction, so that the hand mold 1 can be injection molded at one time. For example, as shown in Figure 2 and Figure 4 , the cross-sectional dimension of the front part of the inner cavity 11 along the direction from the finger end 12 to the arm end 13 gradually expands outward, and the cross-sectional dimension of the rear part is constant. Indeed, in other embodiments, the cross-sectional dimension of the inner cavity 11 along the direction from the finger end 12 to the arm end 13 can be constant, or gradually expand outward all the time, or the cross-sectional dimension of part of the section gradually expands outward, and the cross-sectional dimension of part of the section is constant. The specific cross-sectional dimension of which part gradually expands outward and which part is constant can be set according to the actual situation, and is not specifically set here.

[0045] The inner cavity 11 wall is provided with a clamping hole 4, which can be designed as a groove that does not penetrate through, or as a through hole that penetrates through the inner cavity 11 wall.

[0046] The fixing base 2 comprises a rotating shaft 21, a first clamping plate 22, a second clamping plate 23 and an elastic member 24. The first clamping plate 22 is sleeved on the rotating shaft 21 and can slide axially along the rotating shaft 21 under the drive of the elastic member 24. The second clamping plate 23 is arranged on the side of the first clamping plate 22 close to the hand mold 1.

[0047] When the hand mold 1 is installed on the fixing base 2, the elastic member is elastically deformed under the external force to drive the first clamping plate 22 to move axially along the rotating shaft 21 away from the second clamping plate 23,

[0048] The hand mold 1 is sleeved on the second clamping plate 23, so that the second clamping plate 23 is aligned with the clamping hole 4 circumferentially along the rotating shaft 21;

[0049] The second clamping plate 23 is rotated by rotating the rotating shaft 21, so that the second clamping plate 23 is inserted into the clamping hole 4. Then, the external force on the elastic member 24 is released, so that the elastic member 24 rebounds to drive the first clamping plate 22 to move axially along the rotating shaft 21 to approach the second clamping plate 23 until the first clamping plate 22 abuts against the end face of the arm end 13. The first clamping plate 22 and the second clamping plate 23 are clamped to the hand mold 1 under the rebounding force of the elastic member 24, so that the fixing base 2 fixes the hand mold 1.

[0050] Embodiment 2

[0051] Please refer to Figure 7 and Figure 8 As shown, the inner cavity 11 of the tail of the arm end 13 has a long diameter region and a short diameter region, the clamping hole 4 is arranged on the wall of the short diameter region, the length of the second clamping plate 23 is less than the distance of the long diameter region and greater than the distance of the short diameter region, and the second clamping plate 23 is inserted into the clamping hole 4 during the rotation from the long diameter region to the short diameter region. For example, to improve the aesthetic appearance of the hand mold 1, the tail of the arm end 13 is provided in a tubular shape with an oval cross section, and the wall thickness of this part is the same. At this time, the inner cavity 11 of the tail of the arm end 13 has a long diameter and a short diameter. The clamping hole 4 is provided with two, both arranged on the tail of the arm end 13 and located between the wall corresponding to the long diameter end and the wall corresponding to the short diameter end, or on the wall corresponding to the short diameter end. The two clamping holes 4 are arranged symmetrically about the central axis and both penetrate the wall of the inner cavity 11. The second clamping plate 23 is in the shape of a strip and has a main body 231 located in the middle and two clamping portions 232 located at both ends. The second clamping plate 23 can be inserted into the inner cavity 11 axially along the rotating shaft 21 in a state parallel to the long diameter, so that the clamping portions 232 are aligned with the clamping holes 4 circumferentially along the rotating shaft 21. Then, the second clamping plate 23 is rotated from the long diameter direction to the short diameter direction by rotating the rotating shaft 21, until the clamping portions 232 are inserted into the corresponding clamping holes 4.

[0052] In other embodiments, the clamping hole 4 can be provided with one or more than two, and at this time, the clamping portion 232 is also provided with a corresponding number, which is not specifically limited here.

[0053] Embodiment 3

[0054] Please refer to Figure 9 As shown in the figure, in order to achieve the first clamping plate 22 can slide along the shaft 21 relative to the shaft 21, avoid the first clamping plate 22 relative to the shaft 21 rotation, the shaft 21 has a first segment 211 with the first clamping plate 22 sliding fit, the first segment 211 of the peripheral surface is surrounded by the two plane 2111 and the two arc surface 2112 which are oppositely arranged, the first clamping plate 22 is provided with a through hole which is adapted to the first segment 211, the first clamping plate 22 is sleeved on the first segment 211 through the through hole.

[0055] One end of the first segment 211 is coaxially provided with a connecting shaft 212, the connecting shaft 212 is integrally formed with the shaft 21. The diameter of the connecting shaft 212 is smaller than the diameter of the shaft 21, so that the second clamping plate 23 can be stopped by the end surface of the first segment 211 close to the connecting shaft 212 when the hand mold 1 is fixed subsequently. The peripheral surface of the connecting shaft 212 is also surrounded by two planes and two arc surfaces which are oppositely arranged. The second clamping plate 23 is provided with a through hole which is adapted to the connecting shaft 212, so that the second clamping plate 23 can rotate synchronously with the connecting shaft 212 and the shaft 21 while making the second clamping plate 23 slide along the connecting shaft 212 in the axial direction, which facilitates the subsequent removal of the second clamping plate 23 from the connecting shaft 212.

[0056] Embodiment 4

[0057] Please refer to Figure 9 As shown in the figure, the elastic member 24 adopts a spring, which is sleeved on the shaft 21 and is arranged between the second clamping plate 23 and the first clamping plate 22 and / or on the side of the first clamping plate 22 away from the second clamping plate 23. In a preferred embodiment, the elastic member 24 is arranged on the side of the first clamping plate 22 away from the second clamping plate 23. At this time, one end of the elastic member 24 is fixedly connected with or abuts against the first clamping plate 22, and the other end of the elastic member 24 is fixedly connected with the shaft 21 or abuts against a stopper (not shown) fixedly connected with the shaft 21. Further, the end surface of the first clamping plate 22 facing the elastic member 24 extends towards the elastic member to form a tubular elastic member sleeve 8, and the four peripheral edges of the end surface of the first clamping plate 22 away from the elastic member 24 extend towards the second clamping plate to form a stop edge 9. The elastic member sleeve 8 is used to cover the end of the elastic member 24 close to the first clamping plate 22, shielding the connection between the elastic member 24 and the first clamping plate 22, and improving the overall appearance of the structure. The stop edge 9 can shield the joint between the hand mold 1 and the first clamping plate 22 after they are matched, improving the overall appearance of the structure.

[0058] Embodiment 5

[0059] Please refer to Figure 5 and Figure 6As shown, on the basis of Embodiment 1-4, to achieve the limitation of the rotation of the hand mold 1 relative to the rotating shaft 21, the clamping hole 4 can adopt a stepped hole, including a first stepped hole 41 and a second stepped hole 42 arranged along the circumference of the rotating shaft 21, and the orifice width of the first stepped hole 41 is greater than that of the second stepped hole 42 along the axis of the rotating shaft 21, and the thickness of the clamping portion 232 is adapted to the orifice width of the second stepped hole 42. When the clamping portion 232 is inserted into the clamping hole 4, it is first inserted into the first stepped hole 41, and then rotated to enter the second stepped hole 42, so that the clamping portion 232 is clamped in the second stepped hole 42, limiting the rotation of the hand mold 1 relative to the second clamping plate 23, and further limiting the rotation of the hand mold 1 relative to the rotating shaft 21.

[0060] Embodiment 6

[0061] As shown in Figure 2 and Figure 3 As shown, on the basis of Embodiment 1-4, to achieve the limitation of the rotation of the hand mold 1 relative to the rotating shaft 21, unlike the scheme used in Embodiment 6, the clamping hole 4 can adopt a hole with a uniform orifice along the circumference of the rotating shaft 21, but a rotation stopping groove 3 is arranged on the outer wall of the arm end 13, and a rotation stopping protrusion 5 is arranged on the first clamping plate 22. The rotation stopping protrusion 5 can rotate synchronously with the rotating shaft 21 through the first clamping plate 22, so that after the end of the second clamping plate 23 is inserted into the clamping hole 4, the rotation stopping protrusion 5 can be aligned with the rotation stopping groove 3 along the axis of the rotating shaft 21, and when the elastic member 24 drives the first clamping plate 22 to move along the axis of the rotating shaft 21 to approach the second clamping plate 23, the rotation stopping protrusion 5 can be gradually inserted into the rotation stopping groove 3, limiting the rotation of the hand mold 1 relative to the first clamping plate 22, and further limiting the rotation of the hand mold 1 relative to the rotating shaft 21.

[0062] Embodiment 7

[0063] On the basis of Embodiment 6, to avoid arranging the rotation stopping groove 3 on the end face of the arm end 13 and reduce the thickness of the cavity wall, two bosses 6 are arranged on the outer wall of the tail of the arm end 13, and the rotation stopping groove 3 is arranged on the two bosses 6. Further, a guide groove 7 is arranged on each boss 6, and the guide groove 7 is arranged at the entrance end corresponding to the rotation stopping groove 3. The caliber of the guide groove 7 expands outward along the two sides of the rotation stopping groove 3, facilitating the accurate insertion of the rotation stopping protrusion 5 into the rotation stopping groove 3, so that when the rotation stopping protrusion 5 is misaligned with the rotation stopping groove 3 along the circumference of the rotating shaft 21, the guide groove 7 can correct the positions of the rotation stopping protrusion 5 and the rotation stopping groove 3, so that the rotation stopping protrusion 5 can be accurately inserted into the rotation stopping groove 3.

[0064] Embodiment 8

[0065] The steps of fixing the hand mold 1 by the fixing seat 2 in Embodiment 7:

[0066] The first clamping plate 22 can be first pushed by a cylinder or the like having a pushing force (such as a pneumatic cylinder or an electric cylinder) to approach the second clamping plate 23 along the axis of the rotating shaft 21, and then the clamping portion 232 of the first clamping plate 22 is inserted into the clamping hole 4 of the second clamping plate 23. Figure 9The device shown by the arrow in the figure above pushes the first clamping plate 22 along the rotation shaft 21, further compressing the elastic member 24 (as shown by the arrow in the figure below) Figure 9 );

[0067] The hand mold 1 is sleeved on the rotation shaft 21, the second clamping plate 23 extends into the inner cavity 11 of the hand mold 1, and the clamping portion 232 is circumferentially aligned with the clamping hole 4 along the rotation shaft 21;

[0068] The rotation shaft 21 is rotated, the rotation shaft 21 drives the second clamping plate 23 and the first clamping plate 22 to rotate synchronously, until the clamping portion 232 is inserted into the corresponding clamping hole 4 (as shown in the figure below Figure 4 and Figure 8 ), and the rotation stopping protrusion 5 is axially aligned with the rotation stopping groove 3 along the rotation shaft 21;

[0069] The pushing force on the first clamping plate 22 is removed, the first clamping plate 22 moves along the axis under the elastic force of the elastic member 24 towards the hand mold 1, until the end surface of the arm end 13 of the hand mold 1 is abutted, the first clamping plate 22 and the second clamping plate 23 cooperate to clamp the hand mold 1 under the elastic force of the elastic member 24, the translation of the hand mold 1 is limited; at the same time, the rotation stopping protrusion 5 is pushed into the corresponding rotation stopping groove 3, the rotation of the hand mold 1 is limited, the hand mold 1 is fixed by the fixing seat 2, which is convenient and fast.

[0070] Embodiment 9

[0071] The step of fixing the hand mold 1 by the fixing seat 2 in Embodiment 5:

[0072] Different from the step in Embodiment 8, the rotation shaft 21 drives the second clamping plate 23 and the first clamping plate 22 to rotate synchronously, the clamping portion 232 is first inserted into the corresponding first stepped hole 41 and then continues to rotate into the second stepped hole 42, at this time, the clamping portion 232 is clamped in the corresponding second stepped hole 42, the relative rotation of the hand mold 1 relative to the second clamping plate 23 is limited.

[0073] Embodiment 10

[0074] Please refer to the figure below Figure 7 , the present application also discloses a hand mold 1, the hand mold 1 has a finger end 12, an arm end 13 and an inner cavity 11 extending between the finger end 12 and the arm end 13, the inner cavity 11 has a cavity opening 111 on the end surface of the arm end 13 of the hand mold 1, the cross-sectional dimension of the inner cavity 11 along the direction from the finger end 12 to the arm end 13 is constant or gradually expands outward, wherein the cross-sectional dimension of the inner cavity 11 along the direction from the finger end 12 to the arm end 13 can be constant all the time, or gradually expands outward all the time, or the cross-sectional dimension of part of the section gradually expands outward, the cross-sectional dimension of part of the section is constant, and which section of the cross-sectional dimension gradually expands outward and which section of the cross-sectional dimension is constant can be specifically set according to actual conditions, which is not specifically set here. The clamping hole 4 is arranged on the wall of the inner cavity 11, so that the fixing seat 2 in the above fixes the hand mold through the clamping hole 4.

[0075] Embodiment 11

[0076] Please see Figure 10 The present application also discloses a hand mold for making the hand mold 1, which comprises an upper mold 101, a lower mold 102 and a cavity mold 103. The upper mold 101 and the lower mold 102 are arranged in an upper-lower split mode, and the upper mold 101 and the lower mold 102 are used to abut to form a mold cavity, which has a shape consistent with the external contour of the hand mold 1. The upper mold 101 and the lower mold 102 are internally provided with a protrusion 104 for making the card hole 4. The outer contour of the cavity mold 103 is the same as the inner cavity 11 of the hand mold, and when the hand mold 1 is made, the cavity mold 103 is partially inserted into the mold cavity. The cross-sectional dimension of the cavity mold 103 inserted into the mold cavity is constant or gradually expands outward from the end deep into the mold cavity to the end located at the port of the mold cavity, so that the cross-sectional dimension of the inner cavity 11 of the subsequently made hand mold 1 is constant or gradually expands outward along the direction from the finger end 12 to the arm end 13. Preferably, the cross-section of the cavity mold 103 inserted into the mold cavity expands outward from the end deep into the mold cavity to the end located at the port of the mold cavity. After the cavity mold 103 is partially inserted into the mold cavity, there is an injection gap between the cavity mold 103 and the cavity wall of the mold cavity. The material (such as high-temperature nylon) for making the hand mold 1 is filled into the injection gap. After the material is cooled and formed in the injection gap, the upper mold 101 and the lower mold 102 are separated from the formed hand mold 1, and then the cavity mold 103 is pulled out of the inner cavity 11 of the formed hand mold 1, so that the making of the hand mold 1 is completed.

[0077] The above describes one embodiment of the present application in detail, but the above description is only a preferred embodiment of the present application and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the scope of the present application.

Claims

1. A hand mold fixing structure characterized by comprising: The application relates to a hand mold and a fixing base thereof. The hand mold comprises a finger end, an arm end and an inner cavity extending between the finger end and the arm end, the inner cavity has a cavity opening on the arm end end face, the cross-sectional dimension of the inner cavity is constant or gradually expands outward along the finger end in the direction of the arm end, and a clamping hole is arranged on the inner cavity wall. The fixing base comprises a rotating shaft, a first clamping plate, a second clamping plate and an elastic member, the first clamping plate is sleeved on the rotating shaft and can slide axially along the rotating shaft under the driving of the elastic member, and the second clamping plate is arranged on one side of the first clamping plate close to the hand mold. In a to-be-installed state, the elastic member is elastically deformed under external force to drive the first clamping plate to axially move away from the second clamping plate along the rotating shaft, so that the hand mold can be sleeved on the second clamping plate and the second clamping plate is aligned with the clamping hole in the circumferential direction of the rotating shaft. In an installed state, the end of the second clamping plate is inserted into the clamping hole, the elastic member elastically recovers after the external force disappears to drive the first clamping plate to axially move close to the second clamping plate along the rotating shaft, so that the first clamping plate abuts against the arm end end face and is clamped with the second clamping plate to clamp the hand mold. The tail of the arm end is provided in a tubular shape with an oval cross section, the wall thickness of the tubular part is the same, the inner cavity of the tail of the arm end has a long-diameter area and a short-diameter area, the clamping hole is provided with a plurality of clamping holes, and the clamping holes are all arranged on the wall of the short-diameter area. The second clamping plate comprises a main body part connected with the rotating shaft and a clamping part arranged on the periphery of the main body part and corresponding to the clamping hole one by one.

2. The hand mold securing structure according to claim 1, characterized by The clamping hole is a stepped hole comprising a first stepped hole and a second stepped hole arranged in the circumferential direction of the rotating shaft. The first stepped hole has a larger hole opening width than the second stepped hole in the axial direction of the rotating shaft.

3. The hand mold securing structure of claim 2, wherein The second clamping plate enters the second stepped hole through the first stepped hole.

4. The hand mold securing structure of claim 1, wherein The outer wall of the arm end is provided with a rotation-stopping groove, the first clamping plate is provided with a rotation-stopping protrusion matched with the rotation-stopping groove to limit the rotation of the hand mold relative to the first clamping plate.

5. The hand mold securing structure of claim 1, wherein The rotating shaft can drive the rotation-stopping protrusion and the second clamping plate to synchronously rotate, so that the second clamping plate is inserted into the clamping hole and the rotation-stopping protrusion is aligned with the rotation-stopping groove in the axial direction of the rotating shaft. The elastic member elastically recovers after the external force disappears to drive the first clamping plate to axially move close to the second clamping plate along the rotating shaft, so that the rotation-stopping protrusion is inserted into the rotation-stopping groove. The outer wall of the tail of the arm end is provided with a boss, the boss is provided with a rotation-stopping groove and a guide groove, the guide groove is arranged at the inlet end of the rotation-stopping groove, and the caliber of the guide groove expands outward along the two sides of the rotation-stopping groove. The clamping hole is provided with two clamping holes, the two clamping holes all penetrate the inner cavity wall, the second clamping plate is in a strip shape, the main body part is located in the middle part, and the clamping part is provided with two clamping parts and is respectively located at two ends. The elastic member is arranged between the second clamping plate and the first clamping plate and / or is arranged on one side of the first clamping plate away from the second clamping plate.

6. The hand mold securing structure of claim 1, wherein The elastic member is arranged on the side of the first clamping plate away from the second clamping plate, and a tubular elastic member sleeve is formed on the end face of the first clamping plate towards the elastic member and extending towards the elastic member; And / or, The periphery of the end face of the first clamping plate towards the second clamping plate extends towards the second clamping plate to form a stop edge.

7. The hand mold securing structure of claim 1, wherein One end of the rotating shaft is provided with a connecting shaft with a smaller diameter than the rotating shaft, and the second clamping plate is sleeved on the connecting shaft, and when the second clamping plate is clamped with the first clamping plate to clamp the hand mold, the second clamping plate is stopped by the end face of the connecting shaft close to the second clamping plate.

8. The hand mold securing structure of claim 7, wherein The second clamping plate is slidingly connected with the connecting shaft in the axial direction of the connecting shaft.

9. A hand mold characterized by, The hand mold has a finger end, an arm end, and an inner cavity extending between the finger end and the arm end, the inner cavity has a cavity opening on the end face of the arm end, the cross-sectional dimension of the inner cavity along the finger end towards the arm end direction is constant or gradually expands outward, and the inner cavity wall is provided with a clamping hole, the tail of the arm end is provided in a tubular shape with an oval cross-section, and the wall thickness of the tubular portion is the same, the inner cavity of the tail of the arm end has a long diameter region and a short diameter region, and the clamping hole is opened in several, all of which are opened on the wall of the short diameter region to cooperate with the fixing seat in any one of claims 1-8 to fix the hand mold.

10. A hand mold mold characterized by, The hand mold mold for manufacturing the hand mold in claim 9 comprises an upper mold and a lower mold designed in a split type and butted to form a mold cavity, and a cavity mold insertable into the mold cavity, the mold cavity has the same external contour as the hand mold, and the cavity mold is used to manufacture the inner cavity of the hand mold, the upper mold and the lower mold are provided with protrusions for manufacturing the clamping hole, and the cavity mold has an injection gap between the cavity mold and the mold cavity wall after being partially inserted into the mold cavity, so that the hand mold is injection molded at one time.

Images