A foaming mold with elastic ejection

Abstract

The utility model discloses a foaming mold of elastic ejection relates to mold technical field, including upper die and lower die, the upper die and lower die butt joint cooperation to form the mold cavity for the shaping foaming soft glue product, be provided with first elastic component and second elastic component between the upper die and lower die, the first elastic component includes the upper die elastic block insert butt joint in one side of mold cavity, the second elastic component includes the lower die elastic block insert butt joint in the other side of mold cavity, when opening the mold, the upper die is separated with lower die, the upper die elastic block insert can be along the lower die direction elastic ejection, the lower die elastic block insert can be along the upper die direction elastic ejection, to realize the automatic stripping of foaming soft glue product, utilize the bidirectional elastic ejection structure of upper die elastic block insert and lower die elastic block insert, replaced the traditional line position structure, not only reduced the mold space occupation, is favorable for the promotion mold hole number to adapt to the large -scale production, reduced design, processing and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to an elastically ejected foaming mold. Background Technology

[0002] In the field of mold forming of foamed soft rubber products (such as foamed silicone parts and foamed rubber parts), when the product has a structure with lateral concave and convex, undercut or complex contours, a sliding structure (slider mechanism) is usually required to achieve smooth mold opening and product demolding.

[0003] However, sliding structures have many limitations in practical applications: on the one hand, sliding structures occupy a large amount of mold space, which greatly limits the number of cavities (the number of products molded in one step) for small foamed soft rubber products, making it difficult to adapt to the large-scale production scenario of "small products, large output"; on the other hand, the design, processing and maintenance costs of sliding structures are high, and their moving parts are prone to jamming, wear and tear, which increases the cost of using the mold and the difficulty of management, and is not conducive to maximizing the production benefits of enterprises.

[0004] Therefore, there is an urgent need in this field for a mold structure that is simple in structure and has high space utilization to replace the traditional sliding structure, so as to meet the molding requirements of foamed soft rubber products while reducing production costs and improving production efficiency. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] A flexible ejection foaming mold includes an upper mold and a lower mold, which are mated together to form a mold cavity for molding foamed soft rubber products. A first elastic component and a second elastic component are provided between the upper mold and the lower mold. The first elastic component includes an upper mold spring block insert that abuts against one side of the mold cavity, and the second elastic component includes a lower mold spring block insert that abuts against the other side of the mold cavity. When the mold is opened, the upper mold and the lower mold separate. The upper mold spring block insert can be elastically ejected along the lower mold direction, and the lower mold spring block insert can be elastically ejected along the upper mold direction, so as to realize the automatic demolding of the foamed soft rubber product.

[0007] As a further embodiment of the present invention: the first elastic component further includes a first locking member and a first elastic member; The upper mold spring insert is provided with a first sliding groove extending in its ejection direction. The rod of the first locking member passes through the first sliding groove and is fixedly connected to the upper mold. The head of the first locking member cooperates with the first sliding groove to restrict the upper mold spring insert from disengaging from the first locking member. The first elastic element is sleeved on the rod of the first locking element, and its two ends abut against the upper mold and the upper mold spring block insert, respectively.

[0008] As a further embodiment of this utility model: the head of the first locking member is located in the first sliding groove, and the size of the head is larger than the bottom size of the first sliding groove and smaller than the opening size of the first sliding groove; When the mold is opened or closed, the upper mold spring block insert can slide along the rod of the first locking member through the first sliding groove, and when the upper mold spring block insert slides to the limit position in the direction of the lower mold, the head can abut against the inner bottom of the first sliding groove to achieve the separation restriction of the upper mold spring block insert.

[0009] As a further embodiment of the present invention: the second elastic component further includes a second locking member and a second elastic member; The lower mold spring insert is provided with a second sliding groove extending in its ejection direction. The rod of the second locking member passes through the second sliding groove and is fixedly connected to the lower mold. The head of the second locking member cooperates with the second sliding groove to prevent the lower mold spring insert from disengaging from the second locking member. The second elastic element is sleeved on the rod of the second locking element, and its two ends abut against the lower mold and the lower mold spring block insert, respectively.

[0010] As a further embodiment of this utility model: the head of the second locking member is located in the second sliding groove, and the size of the head is larger than the bottom size of the second sliding groove and smaller than the opening size of the second sliding groove; When the mold is opened or closed, the lower mold spring insert can slide along the rod of the second locking member through the second sliding groove, and when the lower mold spring insert slides to the limit position in the direction of the upper mold, the head can abut against the inner bottom of the second sliding groove to achieve the separation restriction of the lower mold spring insert.

[0011] As a further embodiment of this utility model: the upper mold spring block insert and the lower mold spring block insert extend to opposite sides to form a first product contouring part and a second product contouring part that are connected to the mold cavity.

[0012] As a further embodiment of this utility model: the upper mold is recessed on the side facing downwards with a first groove, and the lower mold is recessed on the side facing upwards with a second groove corresponding to the position of the first groove. The first groove and the second groove together form a first receiving groove for accommodating the upper mold spring block insert when the mold is closed. The inner bottom of the first groove is recessed with a first mounting groove, and the end of the rod of the first locking member away from the head passes through the first sliding groove and extends into the first mounting groove and is fixedly connected to the upper mold. The first elastic element is sleeved on the rod portion of the first locking element located in the first mounting groove, with one end abutting the bottom of the first mounting groove and the other end abutting the side of the upper mold spring block insert facing the first groove.

[0013] As a further embodiment of this utility model: the lower mold is recessed on the side facing upwards with a third groove, and the upper mold is recessed on the side facing downwards with a fourth groove corresponding to the third groove. The third groove and the fourth groove together form a second receiving groove for accommodating the lower mold spring block insert when the mold is closed. The inner bottom of the third groove is recessed with a second mounting groove. The end of the rod of the second locking member away from the head passes through the second sliding groove and extends into the second mounting groove and is fixedly connected to the lower mold. The second elastic element is sleeved on the rod portion of the second locking element located in the second mounting groove, with one end abutting the bottom of the second mounting groove and the other end abutting the side of the lower mold spring block insert facing the third groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, by setting a first elastic component and a second elastic component, utilizes a bidirectional elastic ejection structure of the upper mold spring block insert and the lower mold spring block insert to replace the traditional sliding structure. This not only reduces the space occupied by the mold and facilitates the increase of the number of mold cavities to adapt to large-scale production, but also reduces design, processing and maintenance costs. At the same time, through the bidirectional synchronous disengagement and combined force push of the first product contouring part and the second product contouring part, the automatic demolding of the foamed soft rubber product can be reliably realized, avoiding product retention and taking into account production efficiency.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the first elastic component and the second elastic component in the lower mold of this utility model; Figure 3 This is a schematic diagram of the structure of the first elastic component and the second elastic component in this utility model; Figure 4 This is a cross-sectional structural schematic diagram of this utility model from one perspective; Figure 5 yes Figure 4 Enlarged structural diagram at point A; Figure 6 This is a cross-sectional structural schematic diagram from another perspective of this utility model; Figure 7 yes Figure 6 Enlarged structural diagram at point B; Figure 8 This is a cross-sectional structural schematic diagram from another perspective of this utility model.

[0018] The reference numerals and names in the figure are as follows: 1. Upper mold; 2. Lower mold; 3. Mold cavity; 4. Upper mold spring insert; 5. Lower mold spring insert; 6. First locking element; 7. First elastic element; 8. First sliding groove; 9. Rod; 10. Head; 11. Second locking element; 12. Second elastic element; 13. Second sliding groove; 14. First product contouring part; 15. Second product contouring part; 16. First groove; 17. Second groove; 18. First mounting groove; 19. Third groove; 20. Fourth groove; 21. Second mounting groove; 22. First elastic component; 23. Second elastic component. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-8 In this embodiment of the present invention, an elastically ejected foaming mold includes an upper mold 1 and a lower mold 2. When the upper mold 1 and the lower mold 2 are mated together, they form a mold cavity 3 for molding a foamed soft rubber product. The shape of the mold cavity 3 is adapted to the foamed soft rubber product to be molded.

[0021] A first elastic component 22 and a second elastic component 23 are provided between the upper mold 1 and the lower mold 2. The first elastic component 22 includes an upper mold spring block insert 4, a first locking member 6, and a first elastic member 7. The second elastic component 23 includes a lower mold spring block insert 5, a second locking member 11, and a second elastic member 12. The upper mold spring block insert 4 is connected to one side of the mold cavity 3, and the lower mold spring block insert 5 is connected to the other side of the mold cavity 3. The opposite sides of the upper mold spring block insert 4 and the lower mold spring block insert 5 extend to form a first product contouring part 14 and a second product contouring part 15, respectively. The first product contouring part 14 and the second product contouring part 15 are respectively matched and connected with corresponding parts of the mold cavity 3 to jointly participate in the molding of the foamed soft rubber product.

[0022] Regarding the specific structure of the first elastic component 22, the upper mold spring insert 4 has a first sliding groove 8 extending along its ejection direction (i.e., towards or away from the lower mold 2). The rod portion 9 of the first locking member 6 passes through the first sliding groove 8, and the end of the rod portion 9 away from the head 10 is fixedly connected to the upper mold 1, so that the first locking member 6 and the upper mold 1 are in a relatively fixed state. The head 10 of the first locking member 6 is located in the first sliding groove 8. The size of the head 10 is larger than the bottom size of the first sliding groove 8 and smaller than the opening size of the first sliding groove 8. Through this size matching, the head 10 and the first sliding groove 8 form a sliding limiting fit to prevent the upper mold spring insert 4 from disengaging from the first locking member 6. Specifically, during the mold opening or closing process, the upper mold spring insert 4 slides along the rod 9 of the first locking member 6 through the first sliding groove 8. When it slides to the limit position (that is, when the upper mold spring insert 4 slides to the maximum stroke in the direction of the lower mold 2), the head 10 abuts against the inner bottom of the first sliding groove 8, thereby preventing the upper mold spring insert 4 from continuing to slide and avoiding it from disengaging from the first locking member 6.

[0023] The first elastic element 7 is sleeved on the rod portion 9 of the first locking element 6, and its two ends abut against the upper mold 1 and the upper mold spring block insert 4 respectively, providing elastic restoring force for the upper mold spring block insert 4. To realize the installation of the upper mold spring block insert 4 and the first elastic element 7, the upper mold 1 has a first groove 16 recessed on the downward side, and the lower mold 2 has a second groove 17 recessed on the upward side corresponding to the position of the first groove 16. When the upper and lower molds 2 are closed, the first groove 16 and the second groove 17 together form a first receiving groove for accommodating the upper mold spring block insert 4. Part of the structure of the upper mold spring block insert 4 is located in the first groove 16 and can slide in the first groove 16 during the ejection action. Meanwhile, the inner bottom of the first groove 16 is recessed with a first mounting groove 18, which is used to accommodate the first elastic member 7. The end of the rod 9 of the first locking member 6 away from the head 10 passes through the first sliding groove 8 and extends into the first mounting groove 18 and is fixedly connected to the upper mold 1. The first elastic member 7 is sleeved on the rod 9 of the first locking member 6 located in the first mounting groove 18. One end of the elastic member 7 abuts against the bottom of the first mounting groove 18, and the other end abuts against the side of the upper mold spring block insert 4 facing the first groove 16, ensuring that the elastic force can be stably transmitted to the upper mold spring block insert 4.

[0024] The structure of the second elastic component 23 corresponds to that of the first elastic component 22. A second sliding groove 13 extending along its ejection direction (i.e., towards or away from the upper mold 1) is provided on the lower mold spring insert 5. The rod portion 9 of the second locking member 11 passes through the second sliding groove 13, and the end of the rod portion 9 away from the head 10 is fixedly connected to the lower mold 2, so that the second locking member 11 and the lower mold 2 are in a relatively fixed state. The head 10 of the second locking member 11 is located within the second sliding groove 13. The size of the head 10 is larger than the bottom size of the second sliding groove 13 and smaller than the opening size of the second sliding groove 13. Through this dimensional matching, the head 10 and the second sliding groove 13 form a sliding limiting fit to prevent the lower mold spring insert 5 from disengaging from the second locking member 11. Specifically, during the mold opening or closing process, the lower mold spring insert 5 slides along the rod portion 9 of the second locking member 11 through the second sliding groove 13. When it slides to the limit position (that is, when the lower mold spring insert 5 slides to the maximum stroke in the direction of the upper mold 1), the head 10 abuts against the inner bottom of the second sliding groove 13, thereby preventing the lower mold spring insert 5 from continuing to slide and preventing it from disengaging from the second locking member 11.

[0025] The second elastic element 12 is sleeved on the rod portion 9 of the second locking element 11, and its two ends abut against the lower mold 2 and the lower mold spring block insert 5 respectively, providing elastic restoring force for the lower mold spring block insert 5. To realize the installation of the lower mold spring block insert 5 and the second elastic element 12, the lower mold 2 is recessed on the upward side with a third groove 19, and the upper mold 1 is recessed on the downward side corresponding to the position of the third groove 19 with a fourth groove 20. When the upper and lower molds 2 are closed, the third groove 19 and the fourth groove 20 together form a second receiving groove for accommodating the lower mold spring block insert 5. Part of the structure of the lower mold spring block insert 5 is located in the third groove 19 and can slide in the third groove 19 during the ejection action. Meanwhile, the inner bottom of the third groove 19 is recessed with a second mounting groove 21, which is used to accommodate the second elastic member 12. The end of the rod 9 of the second locking member 11 away from the head 10 passes through the second sliding groove 13 and extends into the second mounting groove 21 and is fixedly connected to the lower mold 2. The second elastic member 12 is sleeved on the rod 9 of the second locking member 11 located in the second mounting groove 21. One end of the elastic member 12 abuts against the bottom of the second mounting groove 21, and the other end abuts against the side of the lower mold spring block insert 5 facing the third groove 19, ensuring that the elastic force can be stably transmitted to the lower mold spring block insert 5.

[0026] When the mold is in the closed state, the upper mold 1 and the lower mold 2 are tightly connected, and both the first elastic element 7 and the second elastic element 12 are in a compressed state. Under the pressure of the elastic elements, the first product contouring part 14 of the upper mold spring block insert 4 and the second product contouring part 15 of the lower mold spring block insert 5 respectively fit into the corresponding parts of the mold cavity 3, and the first product contouring part 14 and the second product contouring part 15 together form part of the contour of the mold cavity 3, participating in the molding of the foamed soft rubber product.

[0027] When the mold opens, the upper mold 1 and the lower mold 2 separate in the vertical direction, and the compression of the first elastic element 7 and the second elastic element 12 gradually dissipates. Under the action of the elastic restoring force, the upper mold spring block insert 4 is elastically ejected along the direction of the lower mold 2, and its first product contouring part 14 moves synchronously with the upper mold spring block insert 4, separating from the foamed soft rubber product in the direction away from the upper mold 1; at the same time, the lower mold spring block insert 5 is elastically ejected along the direction of the upper mold 1, and its second product contouring part 15 moves synchronously with the lower mold spring block insert 5, separating from the foamed soft rubber product in the direction away from the lower mold 2. By separating from the product in different directions, the first product contouring part 14 and the second product contouring part 15 achieve bidirectional separation of the relative product, and finally push the molded foamed soft rubber product out of the mold cavity 3, completing the automatic demolding.

[0028] During bidirectional pushing, the downward force of the upper mold spring insert 4 and the upward force of the lower mold spring insert 5 will form "reverse and synchronous" forces on the product: on the one hand, the resultant force of the two forces will overcome the adhesion between the product and the mold cavity 3; on the other hand, the bidirectional force will keep the product in the mold cavity 3 in a force balance, and will not be stuck to one side, but will be smoothly pushed out along the center direction of the mold cavity 3 (it can fall naturally or be picked up manually after leaving the mold cavity 3).

[0029] In summary, this utility model, by setting the first elastic component 22 and the second elastic component 23, utilizes the bidirectional elastic ejection structure of the upper mold spring block insert 4 and the lower mold spring block insert 5 to replace the traditional sliding structure. This not only reduces the space occupied by the mold and facilitates the increase of the number of mold cavities to adapt to large-scale production, but also reduces design, processing and maintenance costs. At the same time, through the bidirectional synchronous disengagement and combined force push of the first product contouring part 14 and the second product contouring part 15, the automatic demolding of the foamed soft rubber product can be reliably realized, avoiding product retention and taking into account production efficiency.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A foaming mold with elastic ejection, characterized in that, It includes an upper mold and a lower mold, which are mated together to form a mold cavity for molding foamed soft rubber products; A first elastic component and a second elastic component are provided between the upper mold and the lower mold. The first elastic component includes an upper mold spring block insert that abuts against one side of the mold cavity, and the second elastic component includes a lower mold spring block insert that abuts against the other side of the mold cavity. When the mold is opened, the upper mold and the lower mold separate. The upper mold spring block insert can be elastically ejected along the lower mold direction, and the lower mold spring block insert can be elastically ejected along the upper mold direction, so as to realize the automatic demolding of the foamed soft rubber product.

2. The elastically ejected foaming mold according to claim 1, characterized in that, The first elastic component further includes a first locking element and a first elastic element; The upper mold spring insert is provided with a first sliding groove extending in its ejection direction. The rod of the first locking member passes through the first sliding groove and is fixedly connected to the upper mold. The head of the first locking member cooperates with the first sliding groove to restrict the upper mold spring insert from disengaging from the first locking member. The first elastic element is sleeved on the rod of the first locking element, and its two ends abut against the upper mold and the upper mold spring block insert, respectively.

3. The elastically ejected foaming mold according to claim 2, characterized in that, The head of the first locking member is located in the first sliding groove, and the size of the head is larger than the bottom size of the first sliding groove and smaller than the opening size of the first sliding groove. When the mold is opened or closed, the upper mold spring block insert can slide along the rod of the first locking member through the first sliding groove, and when the upper mold spring block insert slides to the limit position in the direction of the lower mold, the head can abut against the inner bottom of the first sliding groove to achieve the separation restriction of the upper mold spring block insert.

4. The elastically ejected foaming mold according to claim 1, characterized in that, The second elastic component further includes a second locking element and a second elastic element; The lower mold spring insert is provided with a second sliding groove extending in its ejection direction. The rod of the second locking member passes through the second sliding groove and is fixedly connected to the lower mold. The head of the second locking member cooperates with the second sliding groove to prevent the lower mold spring insert from disengaging from the second locking member. The second elastic element is sleeved on the rod of the second locking element, and its two ends abut against the lower mold and the lower mold spring block insert, respectively.

5. The elastically ejected foaming mold according to claim 4, characterized in that, The head of the second locking member is located in the second sliding groove, and the size of the head is larger than the bottom size of the second sliding groove and smaller than the opening size of the second sliding groove. When the mold is opened or closed, the lower mold spring insert can slide along the rod of the second locking member through the second sliding groove, and when the lower mold spring insert slides to the limit position in the direction of the upper mold, the head can abut against the inner bottom of the second sliding groove to achieve the separation restriction of the lower mold spring insert.

6. A foaming mold with elastic ejection according to any one of claims 1-5, characterized in that, The upper mold spring block insert and the lower mold spring block insert extend to opposite sides to form a first product contouring part and a second product contouring part that are connected to the mold cavity.

7. A foaming mold with elastic ejection according to claim 2 or 3, characterized in that, The upper mold has a first groove recessed on the downward side, and the lower mold has a second groove recessed on the upward side corresponding to the first groove. The first groove and the second groove together form a first receiving groove for accommodating the upper mold spring block insert when the mold is closed. The inner bottom of the first groove is recessed with a first mounting groove, and the end of the rod of the first locking member away from the head passes through the first sliding groove and extends into the first mounting groove and is fixedly connected to the upper mold. The first elastic element is sleeved on the rod portion of the first locking element located in the first mounting groove, with one end abutting the bottom of the first mounting groove and the other end abutting the side of the upper mold spring block insert facing the first groove.

8. A foaming mold with elastic ejection according to claim 4 or 5, characterized in that, The lower mold has a third groove recessed on the upward side, and the upper mold has a fourth groove recessed on the downward side corresponding to the third groove. The third groove and the fourth groove together form a second receiving groove for accommodating the lower mold spring block insert when the mold is closed. The inner bottom of the third groove is recessed with a second mounting groove. The end of the rod of the second locking member away from the head passes through the second sliding groove and extends into the second mounting groove and is fixedly connected to the lower mold. The second elastic element is sleeved on the rod portion of the second locking element located in the second mounting groove, with one end abutting the bottom of the second mounting groove and the other end abutting the side of the lower mold spring block insert facing the third groove.

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